WO2025139485A1 - Aerosol generation system and heating device - Google Patents

Abstract

Provided in the present application are an aerosol generation system and a heating device. The aerosol generation system comprises: an aerosol generation article comprising at least one aerosol generation substrate which generates an aerosol when heated; and a heating device comprising: a receiving cavity for removably receiving the aerosol generation article; and at least one first elastic element and at least one second elastic element arranged spaced apart from each other, wherein when the aerosol generation article is received in the receiving cavity, at least part of the aerosol generation article is elastically held between the at least one first elastic element and the at least one second elastic element. In the aerosol generation system described above, by means of the first elastic element and the second elastic element which are arranged spaced apart from each other, the heating device elastically clamps or holds the aerosol generation article between the first elastic element and the second elastic element, which helps to stably receive the aerosol generation article.

Description

Aerosol generating system and heating device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent application filed with the Chinese Patent Office on December 29, 2023, with application number 202311865024.9 and entitled “Aerosol Generating System and Heating Device,” the entire contents of which are incorporated by reference into this application.

Technical Field

The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generation system and a heating device.

Background Art

Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. U.S. Pat. No. 5,479,948A proposes a heating device that gradually transmits a portion or position of an aerosol-generating substrate to a heating element for heating by transmitting a tape-like aerosol-generating substrate; such a heating device transmits heat to a tape-like aerosol-generating substrate to allow a consistent aerosol delivery amount to be accurately provided to a consumer in each puff.

Summary of the invention

One embodiment of the present application provides an aerosol generating system, comprising:

A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

Reusable heating device, comprising:

a receiving chamber for removably receiving an aerosol-generating article;

At least one first elastic element and at least one second elastic element are arranged at intervals; when the aerosol generating article is received in the receiving cavity, at least a portion of the aerosol generating article is elastically held between the at least one first elastic element and the at least one second elastic element.

In some embodiments, the at least one first elastic element is at least partially located at one end of the receiving cavity in the longitudinal direction, and the at least one second elastic element is at least partially located at the The other end of the receiving cavity in the longitudinal direction.

In some embodiments, the aerosol-generating article comprises a first end and a second end opposite each other in a longitudinal direction;

When the aerosol-generating article is received in the receiving cavity, the first end of the aerosol-generating article abuts against the at least one first elastic element, and the second end of the aerosol-generating article abuts against the at least one second elastic element.

In some embodiments, the aerosol-generating article further comprises:

An outer body defines an enclosed volume, the outer body including at least one air inlet and at least one air outlet, and an air passage defined through the enclosed volume between the at least one air inlet and the at least one air outlet.

In some embodiments, at least a portion of the at least one first elastic element is configured to be annular and surround the at least one air outlet;

And/or, at least a portion of the at least one second elastic element is configured to be annular and surrounds the at least one air inlet.

In some embodiments, the heating device further comprises at least one air outlet channel;

When the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet for outputting aerosol.

In some embodiments, the at least one first elastic element is further configured to connect the at least one air outlet passage to the at least one air outlet airflow;

And/or, the at least one first resilient element is further configured to provide an airtight seal between the heating device and at least one air outlet of the aerosol-generating article.

In some embodiments, the heating device further comprises at least one air inlet passage;

When the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in communication with the at least one air inlet for allowing air to enter the aerosol-generating article.

In some embodiments, the at least one second elastic element is further configured to connect the at least one air intake passage to the at least one air inlet airflow;

And/or, the at least one second resilient element is further configured to provide an airtight seal between the heating device and at least one air inlet of the aerosol-generating article.

In some embodiments, the aerosol-generating article is substantially configured in a sheet-like shape;

The aerosol-generating article is asymmetric along the length direction and/or the width direction.

In some embodiments, the receiving cavity is arranged to enable the aerosol generating product to be received in the receiving cavity only according to a first predetermined direction, and to prevent the aerosol generating product from being received in the receiving cavity according to a second predetermined direction; the second predetermined direction is defined by flipping the aerosol generating product in the first predetermined direction 180 degrees along the length direction and/or the width direction.

In some embodiments, the aerosol-generating article further comprises:

an outer body defining an enclosed volume, the aerosol-generating substrate being contained and retained within the outer body;

At least one substrate is located within the outer body and can generate heat by being penetrated by the changing magnetic field, thereby heating the at least one aerosol-generating substrate to generate an aerosol.

In some embodiments, the heating device comprises:

at least one induction heater; when the aerosol-generating article is received in the receiving cavity, the at least one induction heater is configured to generate a changing magnetic field that penetrates the at least one substrate.

In some embodiments, the thermal conductivity of at least a portion of the outer body is lower than 20 W/m.K, so as to prevent the heat of the substrate from being transferred to the heating device as much as possible.

In some embodiments, the at least one induction heater is configured to be substantially planar;

And/or, the at least one induction heater comprises or is a planar spiral coil.

In some embodiments, the at least one induction heater is arranged substantially parallel to the receiving cavity.

In some embodiments, the heating device further comprises:

an airflow sensor configured to detect changes in airflow through the heating device when a user draws;

The controller is configured to control the at least one induction heater to generate a changing magnetic field according to the sensing result of the airflow sensor, so as to heat one of the at least one aerosol generating substrates individually each time to generate an aerosol sufficient for one inhalation.

In some embodiments, the heating device further comprises:

at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article;

A proximal end and a distal end facing away from each other in a longitudinal direction;

A battery core is located between the receiving cavity and the distal end and is used to supply power to the at least one heater.

In some embodiments, the heating device further comprises:

The main circuit board comprises a first part and a second part arranged along a length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core.

In some embodiments, the at least one heater is electrically connected to the first portion; and/or the battery cell is electrically connected to the second portion.

In some embodiments, a controller is disposed on the first portion, and the controller is configured The device is configured to control the battery cell to provide power to the at least one heater.

In some embodiments, the at least one heater is an induction heater driven by an alternating current to generate a varying magnetic field;

At least one inverter circuit is arranged on the first part, and the at least one inverter circuit is configured to convert the direct current output by the battery cell into an alternating current and provide it to the at least one induction heater, thereby driving the at least one induction heater to generate a changing magnetic field.

In some embodiments, the heating device further comprises:

A charging interface, arranged at the remote end;

A charging circuit board is arranged between the battery cell and the remote end and is used to control the charging interface to charge the battery cell; the charging circuit board is connected to the second part of the main circuit board.

In some embodiments, the heating device further comprises:

a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the aerosol generating article can be received in the receiving cavity or removed from the receiving cavity through the front side of the housing;

The at least one heater is arranged between the receiving cavity and the rear side.

In some embodiments, the heating device further comprises:

a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the housing defining an opening at the front side, through which the aerosol generating article can be received in or removed from the receiving cavity;

A door cover is connected to the housing and can move relative to the housing to be selectively configured between an open position and a closed position; the door cover opens the opening in the open position and closes the opening in the closed position.

In some embodiments, the door cover is arranged to be rotatable relative to the housing, thereby selectively configured between the open position and the closed position;

And/or, the door cover is arranged to be linearly movable relative to the housing to be selectively configured between the open position and the closed position.

In some embodiments, the heating device further comprises:

The pin shaft is arranged to extend in the longitudinal direction; the door cover is rotatably connected to the shell through the pin shaft, and can rotate relative to the shell around the pin shaft.

In some embodiments, the door cover has a protruding portion;

When the aerosol generating product is received in the receiving cavity, at least part of the protruding portion of the door cover extends from the opening into the receiving cavity to abut against the surface of the aerosol generating product, thereby at least partially supporting or retaining the aerosol generating product.

In some embodiments, the door cover is hollow;

And/or, at least one heat-insulating cavity is arranged in the door cover for heat insulation.

In some embodiments, at least one first magnetic element is arranged on the door cover;

The heating device includes at least one second magnetic element; when the door cover is in the closed position, the first magnetic element and the second magnetic element are magnetically attracted to each other to keep the door cover in the closed position.

In some embodiments, the heating device further comprises:

A front side and a rear side opposite to each other in the thickness direction;

at least one heater disposed between the receiving cavity and the back side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity;

The first bracket is at least partially located between the at least one heater and the receiving cavity, and at least partially defines the receiving cavity.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

A battery core, located between the first bracket and the distal end, for supplying power to the at least one heater; the first bracket includes an extension portion located between the receiving cavity and the battery core;

An airflow sensor is configured to detect changes in airflow passing through the heating device when a user draws air; the airflow sensor is accommodated or retained in an extension portion of the first bracket.

In some embodiments, the device further comprises: at least one air inlet, at least one inhalation port, and at least one air flow channel between the at least one air inlet and the at least one inhalation port; the at least one air flow channel is arranged to define an air flow path from the at least one air inlet to the at least one inhalation port to deliver the aerosol to the inhalation port;

The at least one air inlet and the at least one air suction port are arranged on the heating device;

A portion of the at least one airflow channel is disposed on the heating device and a portion is disposed on the aerosol-generating article.

In some embodiments, the invention further comprises: at least one air inlet and at least one air suction port;

at least one air inlet passage extending from the at least one air inlet to the receiving chamber;

at least one air outlet passage extending from the receiving cavity to the at least one air inlet;

At least one air channel is at least partially defined by the aerosol generating article; when the aerosol generating article is received in the receiving cavity, the at least one air channel provides or establishes airflow communication between the at least one air inlet channel and the at least one air outlet channel.

In some embodiments, the at least one air channel runs straight through the aerosol-generating article.

In some embodiments, the at least one air inlet passage is arranged to extend in a circuitous manner within the heating device.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

The at least one air inlet passage includes a first path portion and a second path portion; wherein at least a portion of the first path portion extends from the at least one air inlet toward the distal end; and the second path portion extends from the first path portion toward the proximal end to the receiving cavity.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article;

a battery core, located between the receiving cavity and the distal end, for supplying power to the at least one heater;

The at least one air inlet passage is arranged to be located between the battery cell and the receiving cavity.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

The at least one air inlet channel is located between the receiving cavity and the distal end; the at least one air outlet channel is located between the receiving cavity and the proximal end.

In some embodiments, it also includes:

a first air inlet, a second air inlet, and an air suction port;

a first air flow channel formed or arranged between the first air inlet and the air inlet for delivering aerosol to the air inlet;

A second air flow channel is formed or arranged between the second air inlet and the inhalation port, so as to transfer aerosol to the inhalation port.

In some embodiments, it also includes:

The airflow sensor is in airflow communication with the first airflow channel and the second airflow channel, and is configured to sense changes in airflow flowing through the first airflow channel and/or the second airflow channel.

In some embodiments, the first airflow channel at least partially passes through the aerosol-generating article;

the second airflow channel at least partially passes through the aerosol-generating article;

The portion of the first airflow channel within the aerosol-generating article and the portion of the second airflow channel within the aerosol-generating article are isolated from each other.

In some embodiments, the first air flow channel and the second air flow channel are substantially arranged in a mirror-symmetrical manner.

In some embodiments, it also includes:

a proximal end and a distal end facing each other in a longitudinal direction, and a first side and a second side facing each other in a width direction;

The first air inlet is arranged on the first side and is located between the receiving cavity and the distal end;

The second air inlet is arranged on the second side and is located between the receiving cavity and the distal end.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

A first bracket at least partially defines the receiving cavity; the first bracket includes an extension portion extending from the receiving cavity toward the distal end;

The first air flow channel includes a first air inlet channel extending from the first air inlet port to the receiving chamber; the second air flow channel includes a second air inlet channel extending from the second air inlet port to the receiving chamber; the first air inlet channel and the second air inlet channel are formed or defined in the extension part and isolated from each other in the extension part.

In some embodiments, the first bracket includes a front end mounted toward the proximal end, and a terminal end facing away from the front end;

A partition wall extending toward the end and terminating at the end is arranged in the extension portion; a first sensing hole and a second sensing hole are arranged on both sides of the partition wall respectively;

An airflow sensor is configured to sense changes in airflow flowing through the first air intake passage and/or the second air intake passage; the airflow sensor is connected to the airflow of the first air intake passage through the first sensing hole, and the airflow sensor is connected to the airflow of the second air intake passage through the second sensing hole.

In some embodiments, a first shielding wall extending toward the end and having a gap with the end is arranged in the extension portion, so as to block the aerosol condensate in the first air inlet channel from flowing toward the first sensing hole; the first sensing hole is located between the first shielding wall and the partition wall, and is in airflow communication with the first air inlet channel through the gap between the first shielding wall and the end;

And/or, a second shielding wall extending toward the end and having a gap with the end is arranged in the extension part, so as to block the aerosol condensate in the second air inlet channel from flowing toward the second sensing hole; the second sensing hole is located between the second shielding wall and the partition wall, and is connected to the airflow of the second air inlet channel through the gap between the second shielding wall and the end.

In some embodiments, the heating device further comprises:

A front side and a rear side opposite to each other in the thickness direction;

at least one heater disposed between the receiving cavity and the back side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity;

The second bracket is at least partially arranged between the at least one heater and the rear side, and at least partially accommodates or supports the at least one heater.

In some embodiments, the second bracket is provided with:

At least one annular rim surrounds the at least one heater.

Another embodiment of the present application further provides an aerosol generating system, comprising:

Replaceable aerosol-generating article comprising:

an outer body defining an enclosed volume;

at least one aerosol-generating substrate contained and held within the outer body and configured to generate an aerosol when heated; the outer body comprising at least one air outlet for outputting the aerosol;

Reusable heating device, comprising:

a receiving chamber for removably receiving an aerosol-generating article;

At least one air intake port;

at least one air outlet channel formed between the receiving chamber and the at least one inhalation port; when the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet port for delivering the aerosol to the at least one inhalation port;

at least one first elastic element; when the aerosol generating product is received in the receiving chamber, the at least one first elastic element is configured to connect the at least one air outlet channel with the at least one air outlet airflow; and/or, the at least one first elastic element is also configured to provide an airtight seal between the heating device and the at least one air outlet of the aerosol generating product.

Another embodiment of the present application further provides an aerosol generating system, comprising:

Replaceable aerosol-generating article comprising:

an outer body defining an enclosed volume;

at least one aerosol-generating substrate contained and held within the outer body and configured to generate an aerosol when heated; the outer body comprising at least one air inlet for admitting external air;

Reusable heating device, comprising:

a receiving chamber for removably receiving an aerosol-generating article;

at least one air intake;

at least one air inlet channel formed between the receiving chamber and the at least one air inlet port; when the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in airflow communication with the at least one air inlet port for delivering external air from the at least one air inlet port to the at least one air inlet port;

at least one second elastic element; when the aerosol generating article is received in the receiving chamber, the at least one second elastic element is configured to connect the at least one air inlet channel with the at least one air inlet airflow; and/or, the at least one second elastic element is also configured to provide an airtight seal between the heating device and the at least one air inlet of the aerosol generating article.

Yet another embodiment of the present application further provides a heating device, which is configured to heat a substantially sheet-shaped aerosol-generating article to generate an aerosol; the heating device comprises:

a receiving chamber for receiving the aerosol generating product;

At least one first elastic element and at least one second elastic element are arranged at intervals; when the aerosol generating article is received in the receiving cavity, at least a portion of the aerosol generating article is elastically held between the at least one first elastic element and the at least one second elastic element.

Another embodiment of the present application further provides a heating device, which is configured to heat an aerosol-generating article to generate an aerosol; the aerosol-generating article comprises at least one air outlet for outputting the aerosol; the heating device comprises:

a receiving chamber for removably receiving an aerosol-generating article;

At least one air intake port;

at least one air outlet channel formed between the receiving chamber and the at least one inhalation port; when the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet port for delivering the aerosol to the at least one inhalation port;

at least one first elastic element; when the aerosol generating product is received in the receiving chamber, the at least one first elastic element is configured to connect the at least one air outlet channel with the at least one air outlet airflow; and/or, the at least one first elastic element is also configured to provide an airtight seal between the heating device and the at least one air outlet of the aerosol generating product.

Another embodiment of the present application further provides a heating device, which is configured to heat an aerosol-generating article to generate an aerosol; the aerosol-generating article comprises at least one air inlet for allowing external air to enter; the heating device comprises:

a receiving chamber for removably receiving an aerosol-generating article;

at least one air intake;

at least one air inlet channel formed between the receiving chamber and the at least one air inlet port; when the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in airflow communication with the at least one air inlet port for delivering external air from the at least one air inlet port to the at least one air inlet port;

at least one second elastic element; when the aerosol generating article is received in the receiving cavity When inside, the at least one second elastic element is configured to connect the at least one air inlet channel with the at least one air inlet airflow; and/or, the at least one second elastic element is also configured to provide an airtight seal between the heating device and the at least one air inlet of the aerosol generating article.

Another embodiment of the present application further provides an aerosol generating system, comprising:

A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

a reusable heating device for removably receiving the aerosol-generating article and heating at least one aerosol-generating substrate of the aerosol-generating article;

at least one air inlet, at least one inhalation port, and at least one air flow channel between the at least one air inlet and the at least one inhalation port; the at least one air flow channel is arranged to define an air flow path from the at least one air inlet to the at least one inhalation port to deliver the aerosol to the inhalation port;

The at least one air inlet and the at least one air suction port are arranged on the heating device;

A portion of the at least one airflow channel is disposed on the heating device and a portion is disposed on the aerosol-generating article.

In some embodiments, the aerosol-generating article further comprises:

an outer body defining an enclosed volume, the outer body including at least one air inlet and at least one air outlet, and at least one air passage defined through the enclosed volume between the at least one air inlet and the at least one air outlet;

A portion of the at least one air flow passage is defined by the at least one air channel.

In some embodiments, the at least one air channel runs straight through the aerosol-generating article.

In some embodiments, the at least one airflow channel further comprises:

at least one air outlet channel; when the aerosol generating article is received in the heating device, the at least one air outlet channel connects the at least one air outlet to the at least one inhalation port for air flow delivery of the aerosol to the at least one inhalation port.

In some embodiments, the at least one airflow channel further comprises:

At least one air inlet channel; when the aerosol generating article is received in the receiving chamber, the at least one air inlet channel connects the at least one air inlet port with the at least one air inlet to allow air to enter the aerosol generating article.

In some embodiments, the heating device further comprises:

a receiving chamber for removably receiving the aerosol-generating article;

at least one air inlet passage extending from the at least one air inlet to the receiving chamber;

at least one air outlet passage extending from the receiving cavity to the at least one air inlet;

When the aerosol-generating article is received in the receiving chamber, airflow communication between the at least one air inlet channel and the at least one air outlet channel is provided or established by the aerosol-generating article.

In some embodiments, the at least one air inlet passage is arranged to extend in a circuitous manner within the heating device.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

The at least one air inlet channel is located between the receiving cavity and the distal end; the at least one air outlet channel is located between the receiving cavity and the proximal end.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

The at least one air inlet passage includes a first path portion and a second path portion; wherein at least a portion of the first path portion extends from the at least one air inlet toward the distal end; and the second path portion extends from the first path portion toward the proximal end to the receiving cavity.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article;

a battery core, located between the receiving cavity and the distal end, for supplying power to the at least one heater;

The at least one air inlet passage is arranged to be located between the battery cell and the receiving cavity.

In some embodiments, the heating device further comprises:

at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article;

an airflow sensor configured to detect changes in airflow through the at least one airflow channel when a user draws puffs;

The controller is configured to control the at least one heater to heat one of the at least one aerosol generating substrates individually each time according to the sensing result of the airflow sensor, thereby generating an aerosol sufficient for one inhalation.

In some embodiments, the air inlet includes a first air inlet and a second air inlet arranged at intervals;

The air flow channel comprises:

a first airflow channel formed between the first air inlet and the at least one inhalation port, defining a first airflow path for delivering aerosol to the inhalation port;

A second air flow channel is formed between the second air inlet and the at least one inhalation port, defining a first air flow path for delivering aerosol to the inhalation port.

In some embodiments, the first airflow channel at least partially passes through the aerosol-generating article;

the second airflow channel at least partially passes through the aerosol-generating article;

The portion of the first airflow channel within the aerosol-generating article and the portion of the second airflow channel within the aerosol-generating article are isolated from each other.

In some embodiments, the first air flow channel and the second air flow channel are substantially arranged in a mirror-symmetrical manner.

In some embodiments, it also includes:

The airflow sensor is in airflow communication with the first airflow channel and the second airflow channel, and is configured to sense changes in airflow flowing through the first airflow channel and/or the second airflow channel.

In some embodiments, the heating device further comprises:

a proximal end and a distal end facing each other in a longitudinal direction, and a first side and a second side facing each other in a width direction;

a receiving chamber for removably receiving the aerosol-generating article;

The first air inlet is arranged on the first side and is located between the receiving cavity and the distal end;

The second air inlet is arranged on the second side and is located between the receiving cavity and the distal end.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

a receiving chamber for removably receiving the aerosol-generating article;

A first bracket at least partially defines the receiving cavity; the first bracket includes an extension portion extending from the receiving cavity toward the distal end;

The first air flow channel includes a first air inlet channel extending from the first air inlet port to the receiving chamber; the second air flow channel includes a second air inlet channel extending from the second air inlet port to the receiving chamber; the first air inlet channel and the second air inlet channel are formed or defined in the extension part and isolated from each other in the extension part.

In some embodiments, the first bracket includes a front end mounted toward the proximal end, and a terminal end facing away from the front end;

A partition wall extending toward the end and terminating at the end is arranged in the extension portion; a first sensing hole and a second sensing hole are arranged on both sides of the partition wall respectively;

An air flow sensor is configured to sense air flow through the first intake passage and/or the second intake passage. The airflow in the air intake passage changes; the airflow sensor is connected to the airflow in the first air intake passage through the first sensing hole, and the airflow sensor is connected to the airflow in the second air intake passage through the second sensing hole.

In some embodiments, a first shielding wall extending toward the end and having a gap with the end is arranged in the extension portion; the first sensing hole is located between the first shielding wall and the partition wall, and is connected to the first air inlet channel through the gap between the first shielding wall and the end;

And/or, a second shielding wall extending toward the end and having a gap with the end is arranged in the extension part; the second sensing hole is located between the second shielding wall and the partition wall, and is connected to the airflow of the second air intake channel through the gap between the second shielding wall and the end.

In some embodiments, the aerosol-generating article is substantially configured to be in the shape of a sheet;

The aerosol-generating article is asymmetric along the length direction and/or the width direction.

In some embodiments, the heating device further comprises:

a receiving chamber for removably receiving the aerosol-generating article;

The receiving cavity is arranged to enable the aerosol generating product to be received in the receiving cavity only according to a first predetermined direction, and to prevent the aerosol generating product from being received in the receiving cavity according to a second predetermined direction; the second predetermined direction is defined by flipping the aerosol generating product in the first predetermined direction 180 degrees along the length direction and/or the width direction.

In some embodiments, the aerosol-generating article further comprises:

an outer body defining an enclosed volume, the aerosol-generating substrate being contained and retained within the outer body;

At least one substrate is located within the outer body and can generate heat by being penetrated by the changing magnetic field, thereby heating the at least one aerosol-generating substrate to generate an aerosol.

In some embodiments, the heating device comprises:

at least one induction heater; when the aerosol-generating article is received in the receiving cavity, the at least one induction heater is configured to generate a changing magnetic field that penetrates the at least one substrate.

In some embodiments, the thermal conductivity of at least a portion of the outer body is lower than 20 W/m.K, so as to prevent the heat of the substrate from being transferred to the heating device as much as possible.

In some embodiments, the at least one induction heater is configured to be substantially planar;

And/or, the at least one induction heater comprises or is a planar spiral coil.

In some embodiments, the at least one induction heater is arranged substantially parallel to the receiving cavity.

In some embodiments, the heating device further comprises:

A proximal end and a distal end facing away from each other in a longitudinal direction;

a receiving chamber for removably receiving the aerosol-generating article;

at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article;

A battery core is located between the receiving cavity and the distal end and is used to supply power to the at least one heater.

In some embodiments, the heating device further comprises:

The main circuit board comprises a first part and a second part arranged along a length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core.

In some embodiments, the at least one heater is electrically connected to the first portion; and/or the battery cell is electrically connected to the second portion.

In some embodiments, a controller is disposed on the first portion, and the controller is configured to control the battery cell to provide power to the at least one heater.

In some embodiments, the heating device further comprises:

A charging interface, arranged at the remote end;

A charging circuit board is arranged between the battery cell and the remote end and is used to control the charging interface to charge the battery cell; the charging circuit board is connected to the second part of the main circuit board.

In some embodiments, the heating device further comprises:

a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the aerosol generating article can be received in the receiving cavity or removed from the receiving cavity through the front side of the housing;

The at least one heater is arranged between the receiving cavity and the rear side.

In some embodiments, the heating device further comprises:

A first bracket at least partially defines the receiving cavity; the first bracket includes an extension portion located between the receiving cavity and the battery cell;

An airflow sensor is configured to detect changes in airflow flowing through the at least one airflow channel when a user inhales; the airflow sensor is accommodated or retained in the extension portion of the first bracket.

In some embodiments, the heating device further comprises:

a receiving chamber for removably receiving the aerosol-generating article;

a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the housing defining an opening at the front side, through which the aerosol generating article can be received in or removed from the receiving cavity;

A door cover is connected to the housing and can move relative to the housing to selectively The door cover is configured between an open position and a closed position; the door cover opens the opening in the open position and closes the opening in the closed position.

In some embodiments, the door cover is arranged to be rotatable relative to the housing, thereby selectively configured between the open position and the closed position;

And/or, the door cover is arranged to be linearly movable relative to the housing to be selectively configured between the open position and the closed position.

In some embodiments, the heating device further comprises:

The pin shaft is arranged to extend in the longitudinal direction; the door cover is rotatably connected to the shell through the pin shaft, and can rotate relative to the shell around the pin shaft.

In some embodiments, the door cover has a protruding portion;

When the aerosol generating product is received in the receiving cavity, at least part of the protruding portion of the door cover extends from the opening into the receiving cavity to abut against the surface of the aerosol generating product, thereby at least partially supporting or retaining the aerosol generating product.

In some embodiments, the door cover is hollow;

And/or, at least one heat-insulating cavity is arranged in the door cover for heat insulation.

In some embodiments, at least one first magnetic element is arranged on the door cover;

The heating device includes at least one second magnetic element; when the door cover is in the closed position, the first magnetic element and the second magnetic element are magnetically attracted to each other to keep the door cover in the closed position.

In some embodiments, the heating device further comprises:

A front side and a rear side opposite to each other in the thickness direction;

a receiving chamber for removably receiving the aerosol-generating article;

at least one heater disposed between the receiving cavity and the back side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity;

The second bracket is at least partially arranged between the at least one heater and the rear side, and at least partially accommodates or supports the at least one heater.

In some embodiments, the second bracket is provided with:

At least one annular rim surrounds the at least one heater.

Another embodiment of the present application further provides an aerosol generating system, comprising:

Replaceable aerosol-generating article comprising:

at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

An outer body defining a closed volume, the outer body comprising at least one air inlet and at least one air outlet, and a at least one air passage between the at least one air outlet and the at least one air outlet;

A reusable heating device for removably receiving the aerosol-generating article and heating at least one aerosol-generating substrate of the aerosol-generating article; the heating device comprising:

a receiving chamber for removably receiving the aerosol-generating article;

at least one air inlet and at least one air suction port;

at least one air inlet passage extending from the at least one air inlet to the receiving chamber;

at least one air outlet passage extending from the receiving cavity to the at least one air inlet;

When the aerosol-generating article is received in the receiving chamber, airflow communication between the at least one air inlet channel and the at least one air outlet channel is provided or established by the at least one air channel.

Another embodiment of the present application further provides an aerosol generating system, comprising:

A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

A reusable heating device for removably receiving the aerosol-generating article and heating at least one aerosol-generating substrate of the aerosol-generating article; the heating device comprising:

a first air inlet and a second air inlet arranged at intervals;

Inhalation port;

a first air flow channel formed between the first air inlet and the at least one air inlet and at least partially passing through the aerosol generating article;

A second air flow channel is formed between the second air inlet and the at least one air inlet and at least partially passes through the aerosol generating article.

Yet another embodiment of the present application further provides a heating device, which is configured to heat a substantially sheet-shaped aerosol-generating article to generate an aerosol; the heating device comprises:

a receiving chamber for receiving the aerosol generating product;

at least one air inlet and at least one air suction port;

at least one air inlet passage extending from the at least one air inlet to the receiving chamber;

at least one air outlet passage extending from the receiving cavity to the at least one air inlet;

When the aerosol-generating article is received in the receiving chamber, airflow communication between the at least one air inlet channel and the at least one air outlet channel is provided or established by the aerosol-generating article.

In the above aerosol generating system, the heating device elastically clamps or holds the aerosol generating article between the first elastic element and the second elastic element arranged at an interval, which is beneficial for stably receiving the aerosol generating article.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

FIG1 is a schematic diagram of an aerosol generating system provided by an embodiment;

FIG2 is a schematic diagram of removing or replacing the aerosol generating article after the door cover in FIG1 is opened;

FIG3 is an exploded schematic diagram of the aerosol generating article of FIG2 from one perspective;

FIG4 is an exploded schematic diagram of the heating device in FIG1 from one viewing angle;

FIG5 is a schematic diagram of the heating device in FIG2 from a viewing angle after the first shell is removed;

FIG6 is a schematic diagram of the heating device in FIG2 from another viewing angle after the first shell is removed;

FIG7 is a structural schematic diagram of the first bracket in FIG4 from another viewing angle;

FIG8 is a structural schematic diagram of the first bracket in FIG7 from another viewing angle;

FIG9 is a cross-sectional schematic diagram of the aerosol generating system in FIG1 from one viewing angle;

FIG. 10 is a cross-sectional schematic diagram of the aerosol generating system in FIG. 1 from one perspective.

DETAILED DESCRIPTION

In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

One embodiment of the present application provides an aerosol generating system for heating an aerosol generating product that can be a consumable material to generate an aerosol.

In some embodiments, the aerosol generating system may include a reusable heating device and replaceable consumables such as aerosol generating articles. The replaceable consumables such as aerosol generating articles receive or are combined with the reusable heating device to form the aerosol generating system.

For example, FIG. 1 to FIG. 2 show schematic diagrams of an aerosol generating system according to an embodiment; in this embodiment, the aerosol generating system includes:

An aerosol-generating product 200 as a replaceable consumable, and a heating device 100 for accommodating and receiving the aerosol-generating product 200 and heating it.

In the embodiment shown in FIGS. 1 and 2 , the heating device 100 includes several components disposed within a housing (which may be referred to as a housing). The overall design of the housing may vary, and the type or configuration of the housing that may define the overall size and shape of the heating device 100 may vary. Generally, the elongated body may be formed from a single, integral housing, or the elongated housing may be formed from two or more separable bodies. In some examples, all or only a portion of the housing may be made of a material such as stainless steel, aluminum, or the like. The heating device 100 may be formed of a metal or alloy, or other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, etc. In the embodiment shown in FIGS. 1 and 2 , the heating device 100 is substantially flat; the longitudinal length of the heating device 100 is greater than the width, and the width is greater than the thickness.

In some embodiments, the housing of the heating device 100 substantially defines the outer surface of the heating device 100; in the embodiment shown in FIGS. 1 to 2, the heating device 100 comprises:

The housing may include one or more reusable components; the housing has a proximal end 110 and a distal end 120 opposite to each other in the longitudinal direction, a first side 130 and a second side 140 opposite to each other in the width direction, and a front side 150 and a rear side 160 opposite to each other in the thickness direction.

In use, the proximal end 110 is configured as an end for the user to inhale aerosol, and a mouthpiece 111 for the user to inhale is provided at the proximal end 110; and the distal end 120 is the end away from the user. The distal end 120 is arranged with a charging interface 121; the charging interface 121 is used to charge the heating device 100 and/or the battery cell 10 in the heating device 100. In some embodiments, the charging interface 121 adopts a USB Type-C interface; or in some other variant embodiments, the charging interface 121 can also adopt a USB 2.0, USB 3.0 or USB 4pin interface.

In some embodiments, the nozzle piece 111 and the housing/second housing 180 are separately prepared and assembled and connected; and the nozzle piece 111 and the housing are detachably connected; and in use, the nozzle piece 111 can be disassembled or removed from the housing; and a sealing ring such as an O-ring can be used to seal them airtightly. Or in some other embodiments, the nozzle piece 111 and the housing/second housing 180 are integrally molded from a moldable material, and they are not detachable or separable from each other.

In use, the front side 150 is a side on which the door cover 190 is opened by a user to receive or take out the aerosol-generating article 200 ; the rear side 160 is a side on which the induction heater 30 is arranged.

As shown in FIG. 1 and FIG. 2 , the housing of the heating device 100 includes:

The first shell 170 and the second shell 180 ; the first shell 170 is close to or defines the front side 150 , and the second shell 180 is close to or defines the rear side 160 .

In the embodiments of Figures 1 and 2, the heating device 100 and/or the outer shell of the heating device 100 is in a longitudinal cylindrical shape; and in the embodiments, the length of the heating device 100 and/or the outer shell of the heating device 100 is greater than the width, and the width is greater than the thickness, so that the heating device 100 and/or the outer shell of the heating device 100 is constructed to be flat.

In some embodiments, the length dimension of the heating device 100 and/or the shell of the heating device 100 is between 60 and 160 mm; and the width dimension of the heating device 100 and/or the shell of the heating device 100 is between 22 and 50 mm; and the thickness dimension of the heating device 100 and/or the shell of the heating device 100 is between 5 and 20 mm.

As shown in FIG. 2 , the aerosol generating article 200 is generally configured to be in a sheet-like shape; the sheet-like shape can be characterized as that the length of the aerosol generating article 200 is greater than or equal to the width, and the width is greater than the thickness.

Accordingly, the heating device 100 comprises:

The receiving cavity 510 is located in the housing; and the receiving cavity 510 is substantially adapted to the shape of the aerosol generating article 200 for receiving the aerosol generating article 200. In some embodiments, the length of the receiving cavity 510 is greater than or equal to the width, and the width is greater than the thickness; and the receiving cavity 510 is arranged in a plane parallel to the longitudinal direction and the width direction of the heating device 100.

1 and 2 , the receiving cavity 510 defines an opening 171 at the front side 150 of the housing. In an embodiment, the opening 171 is formed or defined by the first shell 170 of the housing. In use, the aerosol generating article 200 can be removably received in the receiving cavity 510 or removed through the opening 171.

As shown in FIG. 1 and FIG. 2 , the heating device 100 further includes:

The movable door cover 190 is movably coupled to the outer shell of the heating device 100 and can move relative to the outer shell to selectively move between an open position and a closed position; when the door cover 190 is in the open position, the opening 171 is opened to enable a user to removably receive or remove the aerosol generating product 200 in the receiving chamber 510; when the door cover 190 is in the closed position, the opening 171 is blocked and closed to prevent a user from removably receiving or removing the aerosol generating product 200 in the receiving chamber 510.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the second shell 180 of the housing is provided with a pin 181 arranged in the longitudinal direction on the first side 130; the door cover 190 is hinged to the housing through the pin 181 and can rotate around the pin 181, as shown by arrow R1 in FIG. 2 . Furthermore, the door cover 190 can be selectively configured between an open position and a closed position by rotating, thereby selectively opening or closing the opening 171. Alternatively, in some other variant embodiments, the pin 181 can be arranged on the second side 140 of the housing; the door cover 190 is rotatably connected to the housing on the second side 140. Alternatively, in some other variant embodiments, the pin 181 can be located on the door cover 190.

Or in some other variant embodiments, the door cover 190 is attached to the surface of the front side 150 of the first shell 170, and can move linearly relative to the first shell 170 in the longitudinal direction; and then selectively configured between the open position and the closed position during the movement, thereby selectively opening or closing the opening 171.

2 and 6 , the aerosol generating article 200 having a substantially sheet-like shape has a cutout 290 at one of its corners, so that the aerosol generating article 200 is arranged asymmetrically in both the length direction and/or the width direction.

For example, the aerosol generating article 200 has an asymmetry of 180 degrees flipped along the central axis m in the length direction. Alternatively, the aerosol generating article 200 has a central axis m in the width direction. n flip 180 degrees of asymmetry.

Accordingly, the receiving cavity 510 has an inclined boundary 518 adapted to the cutout 290. Thus, in use, the aerosol generating article 200 can only be received in the receiving cavity 510 along one predetermined direction, such as the first predetermined direction shown in FIG. 2. In addition, the inclined boundary 518 also has a ridge 519 for abutting against the cutout 290 of the aerosol generating article 200.

1, 2 and 9, the door cover 190 has a protruding portion 191. When the aerosol generating product 200 is received in the receiving chamber 510, the protruding portion 191 of the door cover 190 in the closed position can extend from the opening 171 part into the receiving chamber 510 to press or abut against the aerosol generating product 200, so that the aerosol generating product 200 is abutted against the inner bottom wall of the receiving chamber 510 away from the opening 170 and stopped.

As shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 9 , at least one or more first magnetic elements are arranged in the door cover 190; specifically, at least one or more first magnetic elements include a first magnetic element 192 and a first magnetic element 193. The first magnetic element 192 and the first magnetic element 193 are respectively located on both sides of the protruding portion 191 along the longitudinal direction. The first magnetic element 192 and the first magnetic element 193 are located in the door cover 190, and are not exposed on the surface of the door cover 190.

As shown in Figures 1, 2, 4 and 9, an insulating cavity 194 is further defined in the door cover 190; when the door cover 190 is in the closed position, the insulating cavity 194 is located between the outer surface of the door cover 190 and the aerosol generating article 200; it is used to prevent the heat generated by the aerosol generating article 200 from being transferred to the surface of the door cover 190 on the front side 150, which is beneficial for improving thermal insulation.

At least one or more second magnetic elements are correspondingly arranged on the heating device 100; specifically, the at least one or more second magnetic elements include a second magnetic element 61 and a second magnetic element 62. The second magnetic element 61 and the second magnetic element 62 are respectively located on both sides of the receiving cavity 510 along the longitudinal direction. Specifically, a mounting groove 611 is provided in the second shell 180 near the suction nozzle 111, and the second magnetic element 61 is mounted in the mounting groove 611. Accordingly, the second magnetic element 62 can also be fixedly mounted in the mounting groove on the inner surface of the first shell 170.

When the door cover 190 is located at the closed position, the first magnetic element 192 and the second magnetic element 61 are magnetically attracted to each other, and the first magnetic element 193 and the second magnetic element 62 are magnetically attracted to each other, so that the door cover 190 is stably maintained at the closed position.

As shown in FIG. 2 and FIG. 3 , the aerosol generating article 200 includes a first end 210 and a second end 220 opposite to each other along the length direction. Also, the aerosol generating article 200 includes:

A first air inlet 251 and a second air inlet 252 isolated from each other are formed or defined at the second end 220;

A first air outlet 261 and a second air outlet 262 isolated from each other are formed or defined at the first end 210;

A first air passage R21 extending from the first air inlet 251 to the first air outlet 261, and a second air passage R22 extending from the second air inlet 252 to the second air outlet 262. The first air passage R21 and/or the second air passage R22 are arranged to extend along the length direction of the aerosol generating article 200. The first air passage R21 and the second air passage R22 are isolated from each other. The first air passage R21 and/or the second air passage R22 extend straight.

As shown in FIG. 2 and FIG. 3 , the aerosol generating article 200 comprises:

The outer body 230 defining the closed volume is rigid and is defined by the cover plate 231 and the tray 232; specifically, the cover plate 231 and the tray 232 are combined along the thickness direction of the aerosol generating article 200 to form or define the outer body 230 of the aerosol generating article 200. The tray 232 is provided with at least one or more discretely or arrayed concave cavities.

Specifically, the concave cavities include at least one or more first concave cavities 271 arranged at intervals along the longitudinal direction, and at least one or more second concave cavities 272 arranged at intervals along the longitudinal direction; at least one or more first concave cavities 271 are arranged along the first air channel R21; at least one or more second concave cavities 272 are arranged along the second air channel R22.

In some embodiments, the cover plate 231 and the tray 232 are fastened together by interference fit or tight fit. In some embodiments, a separation ridge 235 extending from the first end 210 to the second end 220 along the length direction is arranged on the cover plate 231 and/or the tray 232; when the cover plate 231 and the tray 232 are combined with each other, the first air channel R21 and the second air channel R22 are separated by the separation ridge 235. In an embodiment, the first air channel R21 and/or the first air inlet 251 and/or the first air outlet 261 are arranged on one side of the separation ridge 235, and the second air channel R22 and/or the second air inlet 252 and/or the second air outlet 262 are arranged on the other side of the separation ridge 235.

In the embodiment shown in FIG. 3 , the separation protrusion 235 is arranged on the surface of the tray 232 facing the cover plate 231 ; or in some other variant embodiments, the separation protrusion 235 is arranged on the surface of the cover plate 231 facing the tray 232 .

A plurality of substrates and aerosol generating substrates formed or bonded to the plurality of substrates are arranged between the cover plate 231 and the tray 232; the substrates can be penetrated by the changing magnetic field to generate heat, thereby heating the aerosol generating substrate bonded thereto to generate aerosol. The aerosol generating substrate is a sheet-like or block-like solid or gel.

In some embodiments, the substrate is in the form of a sheet. The substrate has a thickness of about 0.03 to 1.0 mm. In a more preferred embodiment, the substrate has a thickness of about 0.03 to 0.2 mm. In some specific embodiments, the substrate has a thickness of 0.26 mm.

In some embodiments, the aerosol-generating substrate is a continuous thin layer disposed on the substrate; for example, the aerosol-generating substrate substantially completely covers at least one side surface of the substrate.

In some embodiments, an aerosol-generating substrate may be used to refer to a substrate that is capable of releasing volatile compounds that can form an aerosol. The volatile compounds can be released by heating the aerosol-generating substrate. In some typical embodiments, the aerosol-generating substrate is or may include a solid or a gel at room temperature.

In some embodiments, the aerosol-generating substrate may include one or more of powder, particles, shredded strips, ribbons or flakes of one or more of herb leaves, tobacco leaves, homogenized tobacco, expanded tobacco; alternatively, the solid aerosol-generating substrate may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.

In some embodiments, the aerosol generating matrix may include an active substrate; the active substrate includes or is derived from one or more plant products or components thereof; for example, in some specific embodiments, the active substrate includes leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. of plants; for example, in a specific embodiment, the active substrate includes or is derived from one or more plant varieties or components, derivatives or extracts thereof, and the plant variety is tobacco. For example, in a specific embodiment, the active substrate includes a mixture of plants such as tobacco and Chinese herbal medicine. The active substrate may include tobacco or tobacco-containing materials; for example, the active substrate may include any of the following: tobacco leaves, tobacco vein segments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast leaf tobacco, and expanded tobacco.

In some optional embodiments, the aerosol generating substrate further comprises: flavors; the flavors may comprise volatile flavor components. For example, in common embodiments, the flavors may provide a flavor selected from menthol, lemon, vanilla, orange, wintergreen, cherry and cinnamon; the flavors may comprise volatile tobacco flavor compounds released from the aerosol generating substrate when heated.

In some optional embodiments, the aerosol-generating substrate further comprises: an aerosol former or a smoke-generating agent; the aerosol former or a smoke-generating agent helps to form a dense and stable aerosol during use. In some specific embodiments, the aerosol former or a smoke-generating agent is or comprises at least one of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, etc.

In some optional embodiments, the aerosol generating matrix also includes: an adhesive; the adhesive promotes the bonding of the components in the aerosol generating matrix during use; for example, in some specific embodiments, the adhesive is or includes at least one of gum arabic, casein, dextrin, sodium carboxymethyl cellulose, starch, polyvinyl alcohol, guar gum, etc.

In some optional embodiments, the aerosol-generating substrate further comprises: reinforcing fibers; the fiber strength of the reinforcing fibers is generally higher than the fiber strength of the tobacco plant in the active substrate, thereby enhancing the strength and plasticity of the aerosol-generating substrate during use. For example, in some specific embodiments, the reinforcing fibers include at least one of coniferous wood fibers, hardwood fibers, hemp fibers or flax fibers, bamboo fibers, etc.

In a specific embodiment, the aerosol generating matrix includes: 65-90 wt% of active substrate, 3-10 wt% of reinforcing fiber, 0-5 wt% of adhesive, 5-15 wt% of flavor, and 10-20 wt% of aerosol former or smoke generator.

Or in another specific embodiment, the aerosol generating matrix includes: 65-90wt% of active substrate, 3-10wt% of reinforcing fiber, 1-5wt% of adhesive, 5-15wt% of flavor, and 15-40wt% of aerosol former or smoke generator.

In some embodiments, the aerosol-generating substrate has an area density of 20 to 150 g/m2.

In some embodiments, the thickness of the aerosol-generating substrate is 0.1 to 0.6 mm. In some embodiments, the thickness of the aerosol-generating substrate is greater than the thickness of the base.

In some embodiments, the water content of the aerosol-generating substrate is 6 to 14 wt %.

In some embodiments, the aerosol generating substrate may include multiple sublayers; for example, in some optional embodiments, the aerosol generating substrate may include a first sublayer and a second sublayer in a laminated or stacked arrangement. The first sublayer may include an active substrate, reinforcing fibers, an aerosol former or a smoke generator, etc.; the second sublayer mainly includes flavoring agents. In use, the first sublayer is used to generate an aerosol, and the second sublayer is used to adjust or change the taste or fragrance of the aerosol.

Or in some other embodiments, the aerosol generating matrix having multiple sublayers may include a first sublayer and a second sublayer in a laminated or stacked arrangement. The first sublayer may include an active substrate, such as tobacco; the second sublayer may include flavors, and any one or more of functional additives such as adhesives, moisture-proofing agents, mildew-proofing agents, and antibacterial agents. For example, the second sublayer includes 0-20wt% of flavors and fragrances, 80-100wt% of adhesives, 0-0.2wt% of moisture-proofing agents, 0-0.5wt% of mildew-proofing agents, and 0-0.5wt% of antibacterial agents.

In this embodiment, the adhesive of the second sublayer includes at least one of gum arabic, casein, dextrin, sodium carboxymethyl cellulose, starch, polyvinyl alcohol, and guar gum; the desiccant may include at least one of dimethyl fumarate, anhydrous calcium chloride, and a super absorbent resin; the mildew preventer includes at least one of biphenyl, o-phenylphenol, 2-pyridinethiol-1-zinc oxide, ammonium persulfate, and calcium phosphate; the antibacterial agent may be a metal oxide or metal ion inorganic antibacterial agent, and the like.

In some other embodiments, the thickness of the second sublayer of the aerosol generating matrix is 0.001 to 0.1 mm; during the preparation, the second sublayer is coated on the substrate by spraying, brushing, film transfer, etc., and then the first sublayer is combined with the surface of the second sublayer by rolling or casting to form a multi-sublayer aerosol generating matrix.

Alternatively, in some alternative embodiments, the aerosol-generating matrix may include a gel and/or a paste. A gel may be defined as a substantially dilute cross-linked system that does not exhibit flow when in a steady state. A paste may be defined as a viscous fluid such as a paste or slurry; for example, a paste may be a fluid that has a dynamic viscosity greater than 1 Pa·S, 5 Pa·S, or 10 Pa·S when at rest.

In one embodiment, a recognizable mark is arranged on the aerosol generating substrate and/or the base. The mark can be arranged as a recognizable pattern; or in some other variations, the mark is a recognizable color, pattern, number, text, QR code, etc. In some embodiments, the mark is used to provide identification related to the unique properties of the aerosol generating article 200. The user or the heating device 100 obtains the unique properties of the aerosol generating article 200 by identifying the identification mark.

In some embodiments, the unique properties of the aerosol-generating article 200 include various information of the aerosol-generating article 200, such as authenticity information, expiration date, and place of origin. In some embodiments, the above various information of the aerosol-generating article 200 can be obtained through the identification, so that it can be determined whether the aerosol-generating article 200 is authentic, or when the aerosol-generating article 200 has expired and where the aerosol-generating article 200 was manufactured. Therefore, the user may not accidentally use an inauthentic aerosol-generating article 200, an expired aerosol-generating article 200, or an aerosol-generating article 200 from an unexpected source location.

In yet other embodiments, the unique properties of the aerosol-generating article 200 may include the taste of a flavorant contained in the aerosol-generating substrate, such as peach, mint, or orange.

As another example, in some embodiments, the unique properties of the aerosol-generating article 200 may include the strength of nicotine contained in the aerosol-generating substrate, such as the amount of nicotine.

In the embodiments shown in Figures 2 and 3, the substrate is rigid or hard. In some embodiments, the substrate is made of a receptive metal or alloy material; so that in use, the substrate can be heated by electromagnetic induction or by being penetrated by a changing magnetic field to generate heat, and in turn heat the aerosol generating matrix to generate an aerosol. In some specific embodiments, the receptive metal or alloy used to prepare or form the substrate is at least one of iron or iron alloy, nickel or nickel alloy, cobalt or cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, permalloy, etc. In some specific embodiments, the substrate includes a permalloy with an alloy grade of 1J50 or 1J85; for example, the mass percentage of iron in the permalloy substrate is between 15wt% and 85wt%, and the mass percentage of nickel does not exceed 85wt%.

Specifically, the plurality of substrates include: at least one or more sheet-shaped first substrates 241, and at least one or more first aerosol generating substrates 242 formed or combined on at least one or more sheet-shaped first substrates 241. The first substrates 241 and the first aerosol generating substrates 242 are accommodated and held in the first cavity 271.

Specifically, the plurality of substrates further includes: at least one or more sheet-shaped second substrates 281 , and at least one or more second aerosol generating substrates 282 formed on or combined with the at least one or more sheet-shaped second substrates 281 .

In a specific embodiment, each of the plurality of first aerosol generating substrates 242 is respectively bonded to each of the plurality of first substrates 241. Each of the plurality of second aerosol generating substrates 282 is respectively bonded to each of the plurality of second substrates 281. Furthermore, each of the plurality of first aerosol generating substrates 242 and/or the first substrates 241 is respectively and discretely arranged in the plurality of first concave cavities 271; and the plurality of second aerosol generating substrates 282 and/or the second substrates 281 are respectively and discretely arranged in the plurality of second concave cavities 272.

The first aerosol generating substrate 242 is exposed to or located in the first air channel R21, so that the aerosol generated by the first aerosol generating substrate 242 can be output from the first air channel R21 to the first air outlet 261; the second aerosol generating substrate 282 is exposed to or located in the second air channel R22, so that the aerosol generated by the second aerosol generating substrate 282 can be output from the second air channel R22 to the second air outlet 262.

In some embodiments, the first substrate 241 and/or the second substrate 281 may be a dense sheet; or in other embodiments, the first substrate 241 and/or the second substrate 281 may be a mesh with mesh holes, so that the first substrate 241 and/or the second substrate 281 is fluid permeable.

In some embodiments, the cover plate 231 and/or the tray 232 are made of materials with low thermal conductivity and low mass heat capacity, such as zirconium oxide, glass, PEEK (polyetheretherketone), etc., and the long-term temperature resistance needs to be no less than 250° C. Or in some other embodiments, the cover plate 231 and/or the tray 232 include or are paper; for example, the cover plate 231 and/or the tray 232 include fiber paper made of wood fiber, hemp fiber or flax fiber, bamboo fiber, etc.

In some embodiments, the thermal conductivity of the cover plate 231 and/or the tray 232 is lower than 20 W/m.k; or in a more preferred embodiment, the thermal conductivity of the cover plate 231 and/or the tray 232 is lower than 1 W/m.k. The tray 232 with the above low thermal conductivity can minimize the heat transfer of the induced heated substrates, such as the first substrate 241 and the second substrate 281, to the heating device 100 when the aerosol generating article 200 is accommodated in the receiving cavity 510 of the heating device 100 and induced to be heated, and in particular, the heat transfer of the substrates, such as the first substrate 241 and the second substrate 281, to the first bracket 50 defining the receiving cavity 510 can be prevented.

According to the embodiment shown in Figures 2 and 3, the cutout 290 of the aerosol generating article 200 includes: a first cutout 291 on the cover plate 231, and a second cutout 292 on the tray 232. When the cover plate 231 and the tray 232 are combined, the cutout 290 of the aerosol generating article 200 is formed or defined by the first cutout 291 and the second cutout 292.

As shown in FIGS. 4 to 10 , the heating device 100 further includes:

The battery cell 10 is arranged between the receiving cavity 510 and the distal end 120 along the longitudinal direction to supply power to the heating device 100;

The charging circuit board 23 is located between the battery cell 10 and the distal end 120; a charging IC (i.e., a charging management chip) is arranged on the charging circuit board 23 to control the charging of the battery cell 10 through the charging interface 121;

The main circuit board 20 integrates or arranges a control circuit or an MCU controller; the main circuit board 20 includes a first part 21 and a second part 22 arranged in the longitudinal direction; at least part of the second part 22 is located between the battery cell 10 and the rear side 160; the first part 21 is at least partially located between the receiving cavity 510 and/or the induction heater 30 and the rear side 160.

In some embodiments, the charging circuit board 23 is connected to the second portion 22 of the main circuit board 20 through conductive leads or laminated conductive lines, etc. Also, the battery cell 10 abuts against and is connected to the second portion 22 of the main circuit board 20 .

An MCU controller or the like is arranged on the first part 21 of the main circuit board 20 for controlling the supply of power to the induction heater 30. Alternatively, the first part 21 of the main circuit board 20 is used to control the supply of power to the induction heater 30. At least one inverter circuit is arranged on the first part 21 of the main circuit board 20 for converting the direct current output by the battery cell 10 into an alternating current and providing it to at least one induction heater 30 including a planar spiral coil, so that the induction heater 30 generates a changing magnetic field. In some embodiments, at least one inverter circuit includes at least one capacitor, and the at least one capacitor is operable to form an LC oscillator with at least one planar spiral coil, and the alternating current provided to the at least one planar spiral coil is formed by the oscillation of the LC oscillator.

As shown in FIGS. 4 to 10 , the heating device 100 further includes:

At least one or more induction heaters 30, multiple induction heaters 30 are arranged discretely or in an array. At least one or more induction heaters 30 are arranged between the receiving cavity 510 and the rear side 160; at least one or more induction heaters 30 can be independently connected to the first part 21 of the main circuit board 20, and can be independently powered by the main circuit board 20.

In the embodiments shown in Figures 4 to 10, at least one or more induction heaters 30 are configured to generate a changing magnetic field to induce heating of the substrate of the aerosol generating article 200 by the magnetic field. When the aerosol generating article 200 is received in the receiving cavity, at least one or more induction heaters 30 induce heating of the aerosol generating article 200 by generating a magnetic field.

Or in more varied embodiments, the heating device 100 further includes at least one or more heaters, and the heater includes at least one of a resistance heater, an infrared heater, or a light heater, etc. When the aerosol-generating article 200 is received in the receiving cavity, the heater generates heat by resistance Joule heat and transfers heat to heat the aerosol-generating substrate of the aerosol-generating article 200; or, the heater radiates infrared light to heat the aerosol-generating substrate of the aerosol-generating article 200.

Specifically, as shown in Figures 4 to 10, when the aerosol generating product 200 is received in the receiving cavity 510, a plurality of induction heaters 30 are respectively opposite to the aerosol generating matrix and/or substrate, such as the first substrate 241 or the second substrate 281, so that each induction heater 30 can individually heat the relative first substrate 241 or the second substrate 281.

In the embodiments shown in FIGS. 4 to 10 , the induction heater 30 is substantially planar. In an embodiment, the induction heater 30 comprises a planar spiral coil (hereinafter, the planar spiral coil 30 is used as an example for explanation). When the aerosol generating article 200 is received in the receiving chamber 510, the induction heater 30 is substantially arranged in parallel with the substrate, such as the first substrate 241 or the second substrate 281. In FIGS. 4 to 10 , the planar spiral coil 30 is circular in shape; or in some other variant embodiments, the planar spiral coil 30 is square, oval, etc. shape.

In some embodiments, when the aerosol generating article 200 is received in the receiving chamber 510, the planar spiral coil 30 is substantially arranged in parallel with the substrate, such as the first substrate 241 or the second substrate 281. And the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than 15 mm; more preferably, the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than 10 mm. In some embodiments, the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than the diameter of the planar spiral coil 30.

In an embodiment, a plurality of planar spiral coils 30 are connected to the main circuit board 20, and the main circuit board 20 can independently provide alternating current to enable the plurality of planar spiral coils 30 to independently generate magnetic fields, thereby independently starting heating. For example, in some embodiments, several or more planar spiral coils 30 are independently startable; thereby, each planar spiral coil 30 can independently heat only the relative substrate, such as the first substrate 241 or the second substrate 281, thereby causing the aerosol generating substrate on the substrate, such as the first aerosol generating substrate 242 or the second aerosol generating substrate 282, to be heated to generate aerosol.

In some embodiments, the main circuit board 20 is configured to control the heating of several or more planar spiral coils 30 one after another in a predetermined order. In some embodiments, the main circuit board 20 is configured to control the heating of several or more planar spiral coils 30 not to start at the same time; so that, for example, when the user takes a puff each time, the main circuit board 20 controls only one planar spiral coil 30 to start heating to generate aerosol that satisfies one puff. In some embodiments, during each puff, the main circuit board 20 controls one of the several planar spiral coils 30 to heat the aerosol-generating article 200 separately, and the amount of total particulate matter (TPM) generated by one substrate, such as the first substrate 241 or the second substrate 281, may be at least 1.5 mg, at least 1.7 mg, at least 2.0 mg, at least 2.5 mg, at least 3.0 mg, about 1.0 mg to about 5.0 mg, about 1.5 mg to about 4.0 mg, about 2.0 mg to about 4.0 mg or about 2.0 mg to about 3.0 mg, at least 3 mg to about 7 mg, about 4 mg to about 8 mg, and about 5 mg to about 10 mg.

In some embodiments, during multiple puffs by a user, the main circuit board 20 controls a predetermined order of several planar spiral coils 30, and starts heating one after another in sequence. Specifically, for example, as shown in Figures 4 to 10: during the user's first puff, the main circuit board 20 provides power to the first planar spiral coil 30 closest to the left from top to bottom for heating, so as to heat the relative substrates such as the first substrate 241 and the first aerosol generating substrate 242 to generate an aerosol for one puff; during the user's next puff, the main circuit board 20 provides power to the second planar spiral coil 30 closest to the left from top to bottom for heating, so as to heat the relative substrates such as the first substrate 241 and the first aerosol generating substrate 242 to generate an aerosol for one puff; This is done sequentially until all the planar spiral coils 30 are heated, and all the aerosol generating substrates in the aerosol generating product 200, such as the first aerosol generating substrate 242 and the second aerosol generating substrate 282, have been consumed, prompting the user to replace the aerosol generating product 200. In the above implementation, starting the planar spiral coils 30 individually in sequence instead of starting the heating at the same time means minimizing the unnecessary consumption of the aerosol generating substrate and reducing the waste of energy. Or in some other implementations, the order in which the multiple planar spiral coils 30 are started in sequence according to a predetermined order is carried out along the array arrangement direction.

Or in some other implementation variations, the main circuit board 20 controls the plurality of planar spiral coils 30 to be started up individually in sequence, without intervals along the arrangement direction of the planar spiral coils 30. Or in some other implementation variations, the main circuit board 20 controls the plurality of planar spiral coils 30 to be started up individually in sequence, with intervals or in jumps.

In some embodiments, several or more planar helical coils 30 can be energized sequentially, ie, once per user puff, so as to consistently generate an aerosol on a puff-by-puff basis.

In the embodiments of FIGS. 4 to 10 , the heating device 100 comprises:

The airflow sensor 80, such as a microphone or a MEMS sensor, is used to sense the user's puffing action. The main circuit board 20 sequentially supplies energy to a plurality of planar spiral coils 30 based on the sensing result of the airflow sensor. In a preferred embodiment, the main circuit board 20 controls a plurality of planar spiral coils 30 to start sequentially in a predetermined order, which is performed according to the user's puffing action. And in some other variations, the main circuit board 20 controls the sequential start of a plurality of planar spiral coils 30 according to a predetermined interval time; for example, the predetermined interval is between about 30 seconds and 300 seconds.

In some embodiments, the main circuit board 20 controls a plurality of planar spiral coils 30 to start sequentially in a predetermined order, which is based on the removal or replacement of the aerosol generating product 200. Specifically, in some embodiments, after the main circuit board 20 controls the above planar spiral coils 30 to start sequentially, the user is prompted that the aerosol generating product 200 has been consumed, and the user is prompted to replace the aerosol generating product 200 with a new one.

And in some embodiments, when it is detected that a new aerosol generating product 200 is received again in the receiving chamber of the heating device 100, the planar spiral coil 30 is started again in sequence according to a predetermined order. The detection of the user replacing a new aerosol generating product 200 can be detected by a sensor; for example, a light sensor or a pressure sensor is provided in the aerosol generating device to sense the aerosol generating product 200 being combined with or removed from the receiving chamber, and the user's replacement or consumption of the aerosol generating product 200 is determined based on the combination and removal.

In some embodiments, the main circuit board 20 controls the planar spiral coils 30 to start sequentially, which is a cycle. For example, in some embodiments, the cycle is performed according to a predetermined number of times; for example, 6 times. Specifically, when the number of times the planar spiral coils 30 are started, and/or the user's When the number of puffs reaches a predetermined number, a new cycle is entered and the control plane spiral coils 30 are sequentially activated. For example, in some embodiments, the cycle is performed according to the removal or replacement of the aerosol generating product 200.

In some embodiments, the main circuit board 20 controls a plurality of planar spiral coils 30 to generate a magnetic field to induce the relative substrates, such as the first substrate 241 or the second substrate 281, to be heated according to the same heating curve. For example, in some specific embodiments, the main circuit board 20 controls the generation of a magnetic field to induce the relative substrates, such as the first substrate 241 or the second substrate 281, to be heated at a temperature of 300°C. Or in some other variant embodiments, the main circuit board 20 controls a plurality of planar spiral coils 30 to induce the relative substrates, such as the first substrate 241 or the second substrate 281, to be heated according to different heating curves or heating temperatures. For example, in some implementations, the main circuit board 20 controls a plurality of planar spiral coils 30 to induce the heating temperature of the relative substrates, such as the first substrate 241 or the second substrate 281, to increase or decrease in sequence along the heating start sequence.

For example, in some embodiments, the main circuit board 20 is configured to provide power to the planar spiral coil 30 in a given power sequence, so that the relative substrate, such as the first substrate 241 or the second substrate 281, reaches the operating temperature within a predetermined time. For example, each time the main circuit board 20 provides power to the planar spiral coil 30, the relative substrate, such as the first substrate 241 or the second substrate 281, reaches a temperature of at least about 200 degrees, or at least 300 degrees, or at least 400 degrees within 0.5 seconds, and stops after maintaining for about 2.5 seconds.

In some embodiments, the planar spiral coil 30 is spirally wound by a wire material with low resistivity, for example, the planar spiral coil 30 is spirally wound by a conductive copper wire or silver wire, etc. In some embodiments, the wire material wound by the planar spiral coil 30 has a circular cross-sectional shape; or in other embodiments, the wire material wound by the planar spiral coil 30 has a rectangular, elliptical or triangular cross-sectional shape, etc. In some embodiments, the wire material wound by the planar spiral coil 30 is a Litz wire having multiple or multiple strands of conductive wires.

Or in some other embodiments, the planar spiral coil 30 is a track or line formed on a planar substrate by printing, depositing or spraying a conductive paste. For example, in some specific embodiments, the planar spiral coil 30 is formed in a thin layer by printing, depositing or spraying on a rigid or flexible electrical insulating substrate such as ceramic, glass, quartz or PI film.

As shown in FIGS. 4 to 10 , the heating device 100 further includes:

The first support 50 at least partially defines a receiving cavity 510 to accommodate and receive the aerosol generating article 200. At least a portion of the first support 50 is disposed between the planar spiral coil 30 and the front side 150. The first support 50 is at least partially concave in shape to surround and define the receiving cavity 510.

The first bracket 50 is substantially flat in shape; and the first bracket 50 has a front end 520 and a rear end 530 facing each other; wherein the front end 520 is installed toward the proximal end 110, and the rear end 530 is installed toward the distal end 120/battery cell 10. In some embodiments, the length dimension of the first bracket 50 is greater than In the width dimension, the width dimension is greater than the thickness dimension.

In some embodiments, the first bracket 50 is made of a non-sensitive rigid material; for example, the first bracket 50 is made of a polymer plastic or ceramic.

During assembly, at least one retaining rib 182 is arranged on the inner surface of the second housing 180, and cooperates with the groove on the first bracket 50 for positioning and defining, so as to assist the installation and fixation of the first bracket 50 in the second housing 180. The side wall surface of the first bracket 50 close to the first side 130 is arranged with a first convex ridge 511, and the side wall surface close to the second side 140 is arranged with a second convex ridge 512; when the aerosol generating article 200 is received in the receiving cavity 510, the first convex ridge 511 and the second convex ridge 512 abut and clamp the aerosol generating article 200 from both sides of the width direction of the aerosol generating article 200.

As shown in FIGS. 4 to 10 , the suction nozzle piece 111 is hollow; the suction nozzle piece 111 has an air inlet 113 at the proximal end 110 ; and an air outlet channel 112 is arranged inside the suction nozzle piece 111 .

The air outlet channel 112 is connected to the receiving chamber 510 through the first air outlet communication port 513 and the second air outlet communication port 514 arranged on the bracket 50, and then outputs the aerosol to the inhalation port 113, as shown by the arrow R30 in the figure. The first air outlet communication port 513 and the second air outlet communication port 514 are arranged on the wall of the front end 520 of the receiving chamber 510 facing the proximal end 110.

As shown in FIGS. 4 to 10 , a first air inlet communication port 515 and a second air inlet communication port 516 are arranged on the wall of the end 530 of the first bracket 50 facing the distal end 120 to supply air into the receiving cavity 510 during suction.

As shown in FIGS. 4 to 10 , a first air inlet 131 is arranged on the first side 130 of the housing for allowing external air to enter during suction; a second air inlet 141 is arranged on the second side 140 of the housing. The first bracket 50 also has an extension portion 52 extending toward the end 530 and terminating at the end 530. In an embodiment, the extension portion 52 is located between the receiving cavity 510 and the end 530. In an embodiment, the extension portion 52 is hollow and has at least one cavity inside. In assembly, the extension portion 52 has at least one or more connecting portions 525; in installation, fasteners such as screws are passed through the connecting portion 525 to fasten the first bracket 50 to the main circuit board 20 mechanically.

The extension portion 52 of the first bracket 50 is also arranged with:

A first air intake passage R11 extending from the first air intake port 131 to the first air intake communication port 515;

The second air intake passage R12 extends from the second air intake port 141 to the second air intake communication port 516 .

As shown in Figure 10, when the aerosol generating article 200 is received in the receiving cavity 510 of the first bracket 50, the first air inlet 251 of the second end 220 of the aerosol generating article 200 is aligned with the first air inlet connecting port 515 and is airflow connected; and, the second air inlet 252 of the second end 220 of the aerosol generating article 200 is aligned with the second air inlet connecting port 515 and is airflow connected.

As shown in Figure 10, when the aerosol generating article 200 is received in the receiving cavity 510 of the first bracket 50, the first air outlet 261 of the first end 210 of the aerosol generating article 200 is aligned with the first air outlet connecting port 513 and airflow connected; and, the second air outlet 262 of the first end 210 of the aerosol generating article 200 is aligned with the second air outlet connecting port 514 and airflow connected.

Furthermore, in use, the first air inlet channel R11 of the first bracket 50, the first air channel R21 of the aerosol generating article 200, and the air outlet channel 112 inside the mouthpiece 111 jointly define a first air flow channel extending from the first air inlet 131 to the inhalation port 113. And, the first air flow channel passes through the aerosol generating article 200, and is used to deliver the aerosol generated by the first aerosol generating substrate 242 to the inhalation port 113. And, in use, the second air inlet channel R12 of the first bracket 50, the second air channel R22 of the aerosol generating article 200, and the air outlet channel 112 inside the mouthpiece 111 jointly define a second air flow channel extending from the second air inlet 141 to the inhalation port 113. And, the second air flow channel passes through the aerosol generating article 200, and is used to deliver the aerosol generated by the second aerosol generating substrate 282 to the inhalation port 113.

In an embodiment, the first air flow channel is isolated from the second air channel R22 of the aerosol-generating article 200 ; and the second air flow channel is isolated from the first air channel R21 of the aerosol-generating article 200 .

In the connection and connection structure between the various parts of the first airflow channel and/or the second airflow channel, a first joint 521 extending along the width direction toward the first side 130 and a second joint 522 extending along the width direction toward the second side 140 are arranged on the extension part 52 of the first bracket 50. The first joint 521 is used to connect the first air inlet channel R11 with the first air inlet 131; the second joint 522 is used to connect the second air inlet channel R12 with the second air inlet 141. A flexible first sealing sleeve 57 is arranged between the first joint 521 and the second shell 180, and the first sealing sleeve 57 at least partially surrounds the first joint 521 and elastically abuts between the first joint 521 and the second shell 180, thereby providing an airtight seal therebetween. A flexible second sealing sleeve 58 is arranged between the second joint 522 and the second shell 180, and the second sealing sleeve 58 at least partially surrounds the second joint 522 and elastically abuts between the second joint 522 and the second shell 180, thereby providing an airtight seal therebetween.

As shown in FIGS. 4 to 10 , the heating device 100 further includes:

The first elastic element 53/first elastic element 54 is configured to be substantially annular in shape; when the aerosol generating article 200 is received in the receiving cavity 510, the first elastic element 53 at least partially elastically abuts between the first end 210 of the aerosol generating article 200 and the first bracket 50, and surrounds the first air outlet 261 of the aerosol generating article 200 and/or the first air outlet communication port 513 of the first bracket 50, thereby When the aerosol generating article 200 is received in the receiving cavity 510, the first elastic element 54 at least partially elastically abuts between the second end 220 of the aerosol generating article 200 and the first support 50, and surrounds the second air outlet 262 of the aerosol generating article 200 and/or the second air outlet communication opening 514 of the first support 50, thereby providing an airtight seal between the second air outlet 262 and the second air outlet communication opening 514.

Similarly, the heating device 100 further includes:

The second elastic element 55/the second elastic element 56 is constructed to be basically annular in shape and is close to or arranged at the front end 520 of the first bracket 50; when the aerosol generating product 200 is received in the receiving cavity 510, the second elastic element 55 at least partially elastically abuts between the second end 220 of the aerosol generating product 200 and the first bracket 50, and surrounds the first air inlet 251 of the aerosol generating product 200 and/or the first air inlet connecting port 515 of the first bracket 50, thereby providing an airtight seal between the first air inlet connecting port 515 and the first air inlet 251. When the aerosol generating article 200 is received in the receiving cavity 510, the second elastic element 56 at least partially elastically abuts between the second end 220 of the aerosol generating article 200 and the first bracket 50, and surrounds the second air inlet 252 of the aerosol generating article 200 and/or the second air inlet connecting port 516 of the first bracket 50, thereby providing an airtight seal between the second air inlet connecting port 516 and the second air inlet 252.

The first elastic element 53/the first elastic element 54 and the second elastic element 55/the second elastic element 56 are made of elastic materials such as flexible silicone or thermoplastic elastomer, so that they have elasticity.

In the embodiment, the first elastic element 53 at least partially extends from the first air outlet communication port 513 into the receiving chamber 510, and the first elastic element 54 at least partially extends from the second air outlet communication port 514 into the receiving chamber 510; the second elastic element 55 at least partially extends from the first air inlet communication port 515 into the receiving chamber 510, and the second elastic element 56 at least partially extends from the second air inlet communication port 516 into the receiving chamber 510. When the aerosol generating article 200 is received in the receiving chamber 510, the aerosol generating article 200 is elastically clamped or held between the first elastic element 53/54 and the second elastic element 55/56.

In some embodiments, the extension portion 52 is open at the end 530 and defines an opening. Accordingly, the heating device 100 is also arranged with:

The closing element 70 is located between the battery cell 10 and the first bracket 50. The closing element 70 is coupled to the end 530 of the first bracket 50 and closes the opening of the extension part 52 at the end 530. The closing element 70 is connected to the extension part 52 by a mechanical connection mechanism such as a buckle or a screw.

As shown in FIGS. 6, 7, 8 and 10, the extension portion 52 of the first bracket 50 is provided with a receiving wall 529 extending toward the rear side 160; the receiving wall 529 is used to receive and hold the airflow sensor 80. After installation, the airflow sensor 80 is located between the receiving cavity 510 and the battery cell 10. The airflow sensor 80 is located between the extension portion 52 of the first bracket 50 and the main circuit board 20. The airflow sensor 80 is soldered to the first portion 21 of the main circuit board 20 through a conductive pin to form a conductive connection. In addition, a flexible wrapping element 81 is arranged between the airflow sensor 80 and the accommodating wall 529. The wrapping element 81 elastically abuts between the airflow sensor 80 and the accommodating wall 529 to stably hold the airflow sensor 80 in the accommodating wall 529.

And generally, the airflow sensor 80 includes:

A first sensing surface facing the front side 150/extension portion 52, the first sensing surface is used to sense the pressure of the first airflow channel and/or the second airflow channel; and a second sensing surface facing the rear side 160/main circuit board 20, the second sensing surface is connected to the outside atmosphere and senses the pressure of the outside atmosphere. The airflow sensor 80 is configured to determine the user's suction action through the difference between the pressure sensed by the first sensing surface and the pressure sensed by the second sensing surface. In use, the wrapping element 81 is also used to wrap the airflow sensor 80 in the circumferential direction, thereby airtightly isolating the first sensing surface and the second sensing surface of the airflow sensor 80.

As shown in FIGS. 4 to 10 , a partition wall 53 is arranged in the extension portion 52 and extends toward and terminates at the end 530 , so as to separate the first intake passage R11 from the second intake passage R12 .

As shown in FIGS. 4 to 10 , the extension portion 52 is also provided with a first sensing hole 531 and a second sensing hole 532 located on both sides of the partition wall 53 in the width direction. The airflow sensor 80/first sensing surface accommodated and held in the accommodation wall 529 is connected to the first air inlet channel R11/first airflow channel through the first sensing hole 531, so as to sense the change of airflow flowing through the first air inlet channel R11/first airflow channel when the user inhales. The airflow sensor 80/first sensing surface is connected to the second air inlet channel R12/second airflow channel through the second sensing hole 532, so as to sense the change of airflow flowing through the second air inlet channel R12/second airflow channel when the user inhales.

As shown in FIGS. 4 to 10 , a first shielding wall 527 and a second shielding wall 528 are arranged in the longitudinal extension in the extension part 52. The first shielding wall 527 and the second shielding wall 528 are respectively located on both sides of the partition wall 53 along the width direction of the first bracket 50 and/or the extension part 52. The first shielding wall 527 and/or the second shielding wall 528 are arranged in parallel with the partition wall 53. In addition, the first shielding wall 527 extends from the first air inlet connection port 515 toward the end 530, and the second shielding wall 528 extends from the second air inlet connection port 516 toward the end 530. The extension length of the first shielding wall 527 and/or the second shielding wall 528 is less than the length of the partition wall 53. The first shielding wall 527 and/or the second shielding wall 528 do not extend to the end 530, and there is a gap between the first shielding wall 527 and/or the second shielding wall 528 and the end 530.

In the embodiment, the first sensing hole 531 is located between the first shielding wall 527 and the partition wall 53; and the first shielding wall 527 isolates the first sensing hole 531 from the first air inlet channel R11 to prevent the residue or aerosol condensate in the first air inlet channel R11 from flowing to the first sensing hole 531. The first sensing hole 531 is passed through the gap between the first shielding wall 527 and the end 530, and then maintains airflow communication with the first air inlet channel R11 for sensing airflow changes in the first airflow channel. Similarly, the second sensing hole 532 is located between the second shielding wall 528 and the partition wall 53; and the second shielding wall 528 isolates the second sensing hole 532 from the second air inlet channel R12 to prevent the residue or aerosol condensate in the second air inlet channel R12 from flowing to the second sensing hole 532 and causing blockage. The second sensing hole 532 is passed through the gap between the second shielding wall 528 and the end 530, and then maintains airflow communication with the second air inlet channel R12 for sensing airflow changes in the first airflow channel.

In an embodiment, the airflow sensor 60 is in communication with the first airflow channel and the second airflow channel at the same time. When there is a suction airflow in at least one of the first airflow channel and the second airflow channel, the airflow sensor 60 can be triggered.

As shown in Figures 4 to 10, the first air intake passage R11 and the second air intake passage R12 are basically completely symmetrical. Specifically, as shown in Figure 10, the first air intake passage R11 and the second air intake passage R12 are basically mirror-symmetrical to each other in the width direction. The first air intake passage R11 and/or the second air intake passage R12 are arranged in a circuitous manner.

As shown in Figures 4 to 10, the extension portion 52 is further provided with a first airflow guide wall 523 and a second airflow guide wall 524 extending longitudinally. The first airflow guide wall 523 extends from the first air intake communication port 515 toward the end 530, but does not extend to the end 530 or terminate at the end 530, and a gap is formed between the first airflow guide wall 523 and the end 530. The second airflow guide wall 524 extends from the second air intake communication port 516 toward the end 530, but does not extend to the end 530 or terminate at the end 530, and a gap is formed between the second airflow guide wall 524 and the end 530.

In use, as shown in the first air intake passage R11 in FIG. 10 , the air entering the extension portion 52 from the first joint 521 is first guided by the first airflow guide wall 523 to flow toward the end 530, and then passes through the first airflow guide wall 523 and the first shielding wall 527 in the direction from the end 530 to the front end 520 to the first air intake communication port 515, and the air is delivered to the first air intake communication port 515. Alternatively, the first air intake passage R11 includes a first path portion 5251 extending from the first joint 521 toward the end 530, and a second path portion 5252 extending from the end 530 toward the front end 520 to the first air intake communication port 515. Furthermore, the first air intake passage R11 extends in a circuitous manner. And in the first air intake passage R11, the path length of the first path portion 5251 is less than the path length of the second path portion 5252.

Similarly, in use, as shown in the second air inlet passage R12 in FIG. 10 , the air entering the extension portion 52 from the second joint 522 is first guided by the second air flow guide wall 524 to flow toward the end 530, and then passes through the second air flow guide wall 524 and the second shielding wall 528 in a direction from the end 530 toward the front end 520 to the second air inlet communication port 516, and the air is delivered to The second air intake passage R12 includes a third path portion 5261 extending from the second joint 522 toward the end 530, and a fourth path portion 5262 extending from the end 530 toward the front end 520 to the second air intake passage 516. Furthermore, the second air intake passage R12 extends in a circuitous manner. And in the second air intake passage R12, the path length of the third path portion 5261 is shorter than the path length of the fourth path portion 5262.

As shown in FIGS. 4 to 10 , the heating device 100 further includes:

The second bracket 40 is used to accommodate and support the planar spiral coil 30. The second bracket 40 is arranged close to the rear side 160; or the second bracket 40 is located between the planar spiral coil 30 and the second housing 180. Specifically, after assembly, the first bracket 50 and the second bracket 40 accommodate and hold the planar spiral coil 30 therebetween.

As shown in FIGS. 4 to 10 , the second bracket 40 is provided with an annular ridge 41 and an annular ridge 42 on the surface facing the front side 150 and/or the first bracket 50. At least one or more accommodating cavities 43 are defined between the annular ridge 41 and the annular ridge 42. After assembly, the plurality of planar spiral coils 30 are respectively accommodated and installed in the plurality of accommodating cavities 43, and are then respectively surrounded by the annular ridge 41. The annular ridge 41 is also provided with a plurality of notches for the conductive leads of the planar spiral coil 30 to pass through the notches to the outside of the annular ridge 41, and then pass through the second bracket 40 and be connected to the main circuit board 20.

It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims (54)

An aerosol generating system, characterized in that it comprises: A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated; Reusable heating device, comprising: a receiving chamber for removably receiving an aerosol-generating article; At least one first elastic element and at least one second elastic element are arranged at intervals; when the aerosol generating article is received in the receiving cavity, at least a portion of the aerosol generating article is elastically held between the at least one first elastic element and the at least one second elastic element. The aerosol generating system according to claim 1 is characterized in that the at least one first elastic element is at least partially located at one end of the receiving cavity in the longitudinal direction, and the at least one second elastic element is at least partially located at the other end of the receiving cavity in the longitudinal direction. The aerosol generating system according to claim 1 or 2, characterized in that the aerosol generating article comprises a first end and a second end opposite to each other in a longitudinal direction; When the aerosol-generating article is received in the receiving cavity, the first end of the aerosol-generating article abuts against the at least one first elastic element, and the second end of the aerosol-generating article abuts against the at least one second elastic element. The aerosol generating system according to claim 1 or 2, characterized in that the aerosol generating article further comprises: An outer body defines an enclosed volume, the outer body including at least one air inlet and at least one air outlet, and an air passage defined through the enclosed volume between the at least one air inlet and the at least one air outlet. The aerosol generating system according to claim 4, characterized in that at least a portion of the at least one first elastic element is configured to be annular and surrounds the at least one air outlet; And/or, at least a portion of the at least one second elastic element is configured to be annular and surrounds the at least one air inlet. The aerosol generating system according to claim 4, characterized in that the heating The device also includes at least one air outlet channel; When the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet for outputting aerosol. The aerosol generating system of claim 6, wherein the at least one first resilient element is further configured to connect the at least one air outlet channel to the at least one air outlet airflow; And/or, the at least one first resilient element is further configured to provide an airtight seal between the heating device and at least one air outlet of the aerosol-generating article. The aerosol generating system of claim 4, wherein the heating device further comprises at least one air inlet channel; When the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in communication with the at least one air inlet for allowing air to enter the aerosol-generating article. The aerosol generating system of claim 8, wherein the at least one second resilient element is further configured to connect the at least one air inlet passage to the at least one air inlet airflow; And/or, the at least one second resilient element is further configured to provide an airtight seal between the heating device and at least one air inlet of the aerosol-generating article. An aerosol generating system according to claim 1 or 2, characterized in that the aerosol generating article is substantially configured in a sheet-like shape; The aerosol-generating article is asymmetric along the length direction and/or the width direction. The aerosol generating system as described in claim 10 is characterized in that the receiving chamber is arranged to enable the aerosol generating product to be received in the receiving chamber only according to a first predetermined direction, and to prevent the aerosol generating product from being received in the receiving chamber according to a second predetermined direction; the second predetermined direction is defined by flipping the aerosol generating product in the first predetermined direction 180 degrees along the length direction and/or the width direction. The aerosol generating system according to claim 1 or 2, characterized in that the aerosol generating article further comprises: an outer body defining an enclosed volume, the aerosol-generating substrate being contained and retained within the outer body; At least one substrate is located within the outer body and can generate heat by being penetrated by the changing magnetic field, thereby heating the at least one aerosol-generating substrate to generate an aerosol. The aerosol generating system of claim 12, wherein the heating device comprises: at least one induction heater; when the aerosol-generating article is received in the receiving cavity, the at least one induction heater is configured to generate a changing magnetic field that penetrates the at least one substrate. An aerosol generating system according to claim 13, characterized in that the thermal conductivity of at least part of the outer body is lower than 20 W/m.K, so as to prevent the heat of the substrate from being transferred to the heating device as much as possible. The aerosol generating system of claim 13, wherein the at least one induction heater is configured to be substantially planar; And/or, the at least one induction heater comprises or is a planar spiral coil. An aerosol generating system as claimed in claim 13, characterized in that the at least one induction heater is arranged substantially parallel to the receiving cavity. The aerosol generating system of claim 13, wherein the heating device further comprises: an airflow sensor configured to detect changes in airflow through the heating device when a user draws; The controller is configured to control the at least one induction heater to generate a changing magnetic field according to the sensing result of the airflow sensor, so as to heat one of the at least one aerosol generating substrates individually each time to generate an aerosol sufficient for one inhalation. The aerosol generating system according to claim 1 or 2, characterized in that the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; A battery cell is located between the receiving cavity and the distal end for supplying power to the at least one heater powered by. The aerosol generating system of claim 18, wherein the heating device further comprises: The main circuit board comprises a first part and a second part arranged along a length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core. The aerosol generating system as described in claim 19 is characterized in that the at least one heater is electrically connected to the first part; and/or the battery core is electrically connected to the second part. The aerosol generating system according to claim 19, characterized in that a controller is arranged on the first part, and the controller is configured to control the battery cell to provide power to the at least one heater. An aerosol generating system according to claim 19, wherein the at least one heater is an induction heater driven by an alternating current to generate a varying magnetic field; At least one inverter circuit is arranged on the first part, and the at least one inverter circuit is configured to convert the direct current output by the battery cell into an alternating current and provide it to the at least one induction heater, thereby driving the at least one induction heater to generate a changing magnetic field. The aerosol generating system of claim 19, wherein the heating device further comprises: A charging interface, arranged at the remote end; A charging circuit board is arranged between the battery cell and the remote end and is used to control the charging interface to charge the battery cell; the charging circuit board is connected to the second part of the main circuit board. The aerosol generating system of claim 18, wherein the heating device further comprises: a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the aerosol generating article can be received in the receiving cavity or removed from the receiving cavity through the front side of the housing; The at least one heater is arranged between the receiving cavity and the rear side. The aerosol generating system according to claim 1 or 2, characterized in that the The heating device also includes: a housing at least partially defining an outer surface of the heating device and having a front side and a rear side opposite to each other in a thickness direction; the housing defining an opening at the front side, through which the aerosol generating article can be received in or removed from the receiving cavity; A door cover is connected to the housing and can move relative to the housing to be selectively configured between an open position and a closed position; the door cover opens the opening in the open position and closes the opening in the closed position. The aerosol generating system of claim 25, wherein the door cover is arranged to be rotatable relative to the housing to be selectively configured between the open position and the closed position; And/or, the door cover is arranged to be linearly movable relative to the housing to be selectively configured between the open position and the closed position. The aerosol generating system of claim 25, wherein the heating device further comprises: The pin shaft is arranged to extend in the longitudinal direction; the door cover is rotatably connected to the shell through the pin shaft, and can rotate relative to the shell around the pin shaft. The aerosol generating system of claim 25, wherein the door cover has a protruding portion; When the aerosol generating product is received in the receiving cavity, at least part of the protruding portion of the door cover extends from the opening into the receiving cavity to abut against the surface of the aerosol generating product, thereby at least partially supporting or retaining the aerosol generating product. The aerosol generating system of claim 25, wherein the door cover is hollow; And/or, at least one heat-insulating cavity is arranged in the door cover for heat insulation. The aerosol generating system of claim 25, wherein at least one first magnetic element is arranged on the door cover; The heating device includes at least one second magnetic element; when the door cover is in the closed position, the first magnetic element and the second magnetic element are magnetically attracted to each other to keep the door cover in the closed position. The aerosol generating system according to claim 1 or 2, characterized in that the heating device further comprises: A front side and a rear side opposite to each other in a thickness direction; at least one heater disposed between the receiving cavity and the back side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity; The first bracket is at least partially located between the at least one heater and the receiving cavity, and at least partially defines the receiving cavity. The aerosol generating system of claim 31, wherein the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; A battery core, located between the first bracket and the distal end, for supplying power to the at least one heater; the first bracket includes an extension portion located between the receiving cavity and the battery core; An airflow sensor is configured to detect changes in airflow passing through the heating device when a user draws air; the airflow sensor is accommodated or retained in an extension portion of the first bracket. The aerosol generating system according to claim 1 or 2, further comprising: at least one air inlet, at least one inhalation port, and at least one air flow channel located between the at least one air inlet and the at least one inhalation port; the at least one air flow channel is arranged to define an air flow path from the at least one air inlet to the at least one inhalation port to deliver the aerosol to the inhalation port; The at least one air inlet and the at least one air suction port are arranged on the heating device; A portion of the at least one airflow channel is disposed on the heating device and a portion is disposed on the aerosol-generating article. The aerosol generating system according to claim 1 or 2, further comprising: at least one air inlet and at least one air inlet; at least one air inlet passage extending from the at least one air inlet to the receiving chamber; at least one air outlet passage extending from the receiving cavity to the at least one air inlet; At least one air channel is at least partially defined by the aerosol generating article; when the aerosol generating article is received in the receiving cavity, the at least one air channel provides or establishes airflow communication between the at least one air inlet channel and the at least one air outlet channel. An aerosol generating system according to claim 34, characterized in that the at least one air passage extends straight through the aerosol generating article. An aerosol generating system as described in claim 34 is characterized in that the at least one air inlet channel extends in a circuitous manner within the heating device. The aerosol generating system of claim 34, wherein the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; The at least one air inlet passage includes a first path portion and a second path portion; wherein at least a portion of the first path portion extends from the at least one air inlet toward the distal end; and the second path portion extends from the first path portion toward the proximal end to the receiving cavity. The aerosol generating system of claim 34, wherein the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; a battery core, located between the receiving cavity and the distal end, for supplying power to the at least one heater; The at least one air inlet passage is arranged to be located between the battery cell and the receiving cavity. The aerosol generating system of claim 34, wherein the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; The at least one air inlet channel is located between the receiving cavity and the distal end; the at least one air outlet channel is located between the receiving cavity and the proximal end. The aerosol generating system according to claim 1 or 2, further comprising: a first air inlet, a second air inlet, and an air suction port; a first air flow channel formed or arranged between the first air inlet and the air inlet for delivering aerosol to the air inlet; A second air flow channel is formed or arranged between the second air inlet and the inhalation port, so as to transfer aerosol to the inhalation port. The aerosol generating system of claim 40, further comprising: The airflow sensor is in airflow communication with the first airflow channel and the second airflow channel, and is configured to sense changes in airflow flowing through the first airflow channel and/or the second airflow channel. An aerosol generating system according to claim 40, characterized in that the first airflow channel at least partially passes through the aerosol generating article; the second airflow channel at least partially passes through the aerosol-generating article; The portion of the first airflow channel within the aerosol-generating article and the portion of the second airflow channel within the aerosol-generating article are isolated from each other. An aerosol generating system according to claim 40, characterized in that the first airflow channel and the second airflow channel are arranged substantially in a mirror-symmetrical manner. The aerosol generating system of claim 40, further comprising: a proximal end and a distal end facing each other in a longitudinal direction, and a first side and a second side facing each other in a width direction; The first air inlet is arranged on the first side and is located between the receiving cavity and the distal end; The second air inlet is arranged on the second side and is located between the receiving cavity and the distal end. The aerosol generating system of claim 40, wherein the heating device further comprises: A proximal end and a distal end facing away from each other in a longitudinal direction; A first bracket at least partially defines the receiving cavity; the first bracket includes an extension portion extending from the receiving cavity toward the distal end; The first air flow channel includes a first air inlet channel extending from the first air inlet port to the receiving chamber; the second air flow channel includes a second air inlet channel extending from the second air inlet port to the receiving chamber; the first air inlet channel and the second air inlet channel are formed or defined in the extension part and isolated from each other in the extension part. The aerosol generating system of claim 45, wherein the first support comprises a front end mounted toward the proximal end, and a terminal end facing away from the front end; A partition wall extending toward the end and terminating at the end is arranged in the extension portion; a first sensing hole and a second sensing hole are arranged on both sides of the partition wall respectively; An airflow sensor is configured to sense changes in airflow flowing through the first air intake passage and/or the second air intake passage; the airflow sensor is connected to the airflow of the first air intake passage through the first sensing hole, and the airflow sensor is connected to the airflow of the second air intake passage through the second sensing hole. The aerosol generating system according to claim 46, characterized in that a first shielding wall extending toward the end is arranged in the extension portion to block the aerosol condensate in the first air inlet channel from flowing toward the first sensing hole; the first sensing hole is located between the first shielding wall and the partition wall; And/or, a second blocking wall extending toward the end is arranged in the extension part to block the aerosol condensate in the second air inlet channel from flowing toward the second sensing hole; the second sensing hole is located between the second blocking wall and the partition wall, and is connected to the airflow of the second air inlet channel. The aerosol generating system according to claim 1 or 2, characterized in that the heating device further comprises: A front side and a rear side opposite to each other in the thickness direction; at least one heater disposed between the receiving cavity and the back side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity; The second bracket is at least partially arranged between the at least one heater and the rear side, and at least partially accommodates or supports the at least one heater. The aerosol generating system of claim 48, wherein the second bracket is provided with: At least one annular rim surrounds the at least one heater. An aerosol generating system, characterized in that it comprises: Replaceable aerosol-generating article comprising: an outer body defining an enclosed volume; at least one aerosol-generating substrate contained and held within the outer body and configured to generate an aerosol when heated; the outer body comprising at least one air outlet for outputting the aerosol; Reusable heating device, comprising: a receiving chamber for removably receiving an aerosol-generating article; At least one air intake port; at least one air outlet channel formed between the receiving chamber and the at least one inhalation port; when the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet port for delivering the aerosol to the at least one inhalation port; at least one first elastic element; when the aerosol generating product is received in the receiving chamber, the at least one first elastic element is configured to connect the at least one air outlet channel with the at least one air outlet airflow; and/or, the at least one first elastic element is also configured to provide an airtight seal between the heating device and the at least one air outlet of the aerosol generating product. An aerosol generating system, characterized in that it comprises: Replaceable aerosol-generating article comprising: an outer body defining an enclosed volume; at least one aerosol-generating substrate contained and held within the outer body and configured to generate an aerosol when heated; the outer body comprising at least one air inlet for admitting external air; Reusable heating device, comprising: a receiving chamber for removably receiving an aerosol-generating article; at least one air intake; at least one air inlet channel formed between the receiving chamber and the at least one air inlet port; when the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in airflow communication with the at least one air inlet port for delivering external air from the at least one air inlet port to the at least one air inlet port; at least one second elastic element; when the aerosol generating article is received in the receiving chamber, the at least one second elastic element is configured to connect the at least one air inlet channel with the at least one air inlet airflow; and/or, the at least one second elastic element is also configured to provide an airtight seal between the heating device and the at least one air inlet of the aerosol generating article. A heating device is configured to heat a substantially sheet-shaped aerosol-generating article to generate an aerosol; characterized in that the heating device comprises: a receiving chamber for receiving the aerosol generating product; At least one first elastic element and at least one second elastic element are arranged at intervals; when the aerosol generating article is received in the receiving cavity, at least a portion of the aerosol generating article is elastically held between the at least one first elastic element and the at least one second elastic element. A heating device is configured to heat an aerosol generating article to generate an aerosol; the aerosol generating article comprises at least one air outlet for outputting the aerosol; characterized in that the heating device comprises: a receiving chamber for removably receiving an aerosol-generating article; At least one air intake port; at least one air outlet channel formed between the receiving chamber and the at least one inhalation port; when the aerosol-generating article is received in the receiving chamber, the at least one air outlet channel is in airflow communication with the at least one air outlet port for delivering the aerosol to the at least one inhalation port; at least one first elastic element; when the aerosol generating product is received in the receiving chamber, the at least one first elastic element is configured to connect the at least one air outlet channel with the at least one air outlet airflow; and/or, the at least one first elastic element is also configured to provide an airtight seal between the heating device and the at least one air outlet of the aerosol generating product. A heating device is configured to heat an aerosol-generating article to generate an aerosol; the aerosol-generating article comprises at least one air inlet for allowing external air to enter; the heating device comprises: a receiving chamber for removably receiving an aerosol-generating article; at least one air intake; at least one air inlet channel formed between the receiving chamber and the at least one air inlet port; when the aerosol-generating article is received in the receiving chamber, the at least one air inlet channel is in airflow communication with the at least one air inlet port for delivering external air from the at least one air inlet port to the at least one air inlet port; at least one second elastic element; when the aerosol generating article is received in the receiving chamber, the at least one second elastic element is configured to connect the at least one air inlet channel with the at least one air inlet airflow; and/or, the at least one second elastic element is also configured to provide an airtight seal between the heating device and the at least one air inlet of the aerosol generating article.