WO2025103354A1 - Aerosol-generating device - Google Patents

Abstract

An aerosol-generating device, comprising: a housing (4); an atomization assembly (2), which is connected to the housing (4) and comprises a first atomizer (21) and a second atomizer (22); a power supply (61) for supplying power to the first atomizer (21) and/or the second atomizer (22); an airflow detection assembly (3), which is at least partially arranged in the housing (4) and comprises a first airflow detector (31) in electrical connection with the first atomizer (21) and a second airflow detector (32) in electrical connection with the second atomizer (22); and a change-over switch (1), which is configured to be movable between a first position and a second position relative to the housing (4). The change-over switch (1) is configured so that, when at the first position, the change-over switch (1) connects an airflow path between the first airflow detector (31) and the first atomizer (21), and the first airflow detector (31) can thus control the power supply (61) to supply power to the first atomizer (21) in response to an airflow change; and the change-over switch (1) is configured so that, when at the second position, the change-over switch (1) connects an airflow path between the second airflow detector (32) and the second atomizer (22), and the second airflow detector (32) can thus control the power supply (61) to supply power to the second atomizer (22) in response to an airflow change.

Description

Aerosol generating device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent application filed with the China Patent Office on November 15, 2023, with application number 202311532330.0 and entitled “Aerosol Generating Device,” the entire contents of which are incorporated herein by reference.

Technical Field

Embodiments of the present application relate to the technical field of aerosol generation, and in particular to an aerosol generating device.

Background Art

An aerosol generating device is a device that can atomize a liquid preparation to form an aerosol. However, in some exemplary prior art, the aerosol generating device has multiple atomizers for storing liquid preparations, and also has a control switch and an identification circuit. The identification circuit is used to identify the identity of the atomizer to distinguish different atomizers, and the control switch is used to control the power supply to provide power to the atomizer with the identified identity, so that the atomizer atomizes the liquid preparation to generate an aerosol. However, the circuit structure of such an aerosol generating device with multiple atomizers is complex and prone to errors.

Application Contents

The embodiment of the present application provides an aerosol generating device with a simple circuit structure.

The present application provides an aerosol generating device, comprising:

case;

An atomization assembly, connected to the housing, and comprising a first atomizer and a second atomizer;

A power source, used to provide power to the first atomizer and/or the second atomizer;

an airflow detection assembly, at least partially disposed in the housing, comprising a first airflow detector electrically connected to the first atomizer and a second airflow detector electrically connected to the second atomizer;

The switch is configured to be movable between at least a first position and a second position relative to the housing, and the switch is used to conduct the first airflow detection when in the first position. The switch is used to connect the airflow path between the second airflow detector and the second nebulizer when it is in the second position, so that the second airflow detector can respond to the airflow change to control the power supply to provide power to the second nebulizer.

In one example, the switch is further configured to block the airflow path between the second airflow detector and the second nebulizer when in the first position; and to block the airflow path between the first airflow detector and the first nebulizer when in the second position.

In one example, the switch is configured to be movable to a third position relative to the housing, and when in the third position, the airflow path between the first airflow detector and the first nebulizer is open, and the airflow path between the second airflow detector and the second nebulizer is open.

In one example, the third position is located between the first position and the second position.

In one example, the switch is disposed between the atomization component and the airflow detection component.

In one example, the aerosol generating device further comprises a bracket, and the bracket is provided with a first air guiding channel and a second air guiding channel;

The switch can move relative to the bracket and, when located at the first position, opens the first air guide channel so that the air flow path between the first atomizer and the first air flow detector is connected;

And when the switching switch is located at the second position, the second air guide channel is opened, so that the air flow path between the second atomizer and the second air flow detector is connected.

In one example, when the switch is located at the first position, the switch blocks the second air guide channel;

When the switch is in the second position, the switch blocks the first Air channel.

In one example, the switch includes an elastic member, and the elastic member has a sensing channel running through two sides of the elastic member;

When the switch is located at the first position, the sensing channel is connected to the first air-conducting channel;

When the switch is located at the second position, the sensing channel is connected to the second air guide channel.

In one example, an annular rib surrounding the end of the sensing channel is formed on the elastic member, and the annular rib elastically abuts against the bracket to make the sensing channel airtightly connected with the corresponding air guiding channel or airtightly isolated from the corresponding air guiding channel.

In one example, the switching switch further includes an operating member connected to the elastic member, wherein a portion of the operating member extends outside the housing to provide a user with an operation to drive the elastic member to move between the first position and the second position.

In one example, the elastic member is provided with a first sensing channel and a second sensing channel;

When the switch is located at the first position, the first sensing channel is connected to the first air guide channel;

When the switch is located at the second position, the second sensing channel is connected to the second air guiding channel.

In one example, the first sensing channel includes a first groove disposed on the first end of the switching switch, a second groove disposed on the second end of the switching switch, and a through channel that passes through the switching switch and connects the first groove and the second groove, and the first groove and the second groove have the same extension direction.

In one example, the bracket includes a second support plate and a first support plate, a moving space is formed between the second support plate and the first support plate, and at least a portion of the switch moves between the first position and the second position in the moving space.

In one example, the housing has a first air passage communicating with the first atomizer and a second air passage communicating with the second atomizer;

The switching switch is configured to, when located in the first position, open the air intake path between the first air duct and the outside world, while blocking the air intake path between the second air duct and the outside world; and to, when located in the second position, open the air intake path between the second air duct and the outside world, while blocking the air intake path between the first air duct and the outside world.

In one example, the aerosol generating device further comprises a circuit board, and the first airflow detector and the second airflow detector are held close to each other on the circuit board.

The above-mentioned aerosol generating device includes an atomizing assembly having a first atomizer and a second atomizer, and an airflow detecting assembly having a first airflow detector and a second airflow detector, and also includes a movable switching switch. When the switching switch is located at a first position, the airflow path between the first airflow detector and the first atomizer is connected, and when the switching switch is located at a second position, the airflow path between the second airflow detector and the second atomizer is connected. Thus, the first airflow detector and the second airflow detector can control the power supply based on the airflow change to provide power for the first atomizer and the second atomizer to generate aerosol respectively, without the need for a complex circuit structure and control program, and with strong stability and high accuracy.

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 device provided in one embodiment of the present application;

FIG2 is a cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

FIG3 is another cross-sectional view of the aerosol generating device provided in one embodiment of the present application;

FIG4 is a schematic diagram of a switch provided by an embodiment of the present application being located in a third position;

FIG5 is a schematic diagram of a switch provided by an embodiment of the present application being located in a first position;

FIG6 is a schematic diagram of a switch provided by an embodiment of the present application being located in a second position;

FIG7 is another cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

FIG8 is a schematic diagram of an airway with a switch located in a third position provided by an embodiment of the present application;

FIG9 is a schematic diagram of an airway with a switch in a first position provided by an embodiment of the present application;

FIG10 is a schematic diagram of an airway with a switch in a second position provided by an embodiment of the present application;

FIG11 is a schematic diagram of a second support plate and a housing provided in an embodiment of the present application;

FIG12 is a schematic diagram of a switch and a moving space provided in an embodiment of the present application;

FIG13 is a schematic diagram of a combination of a switch provided in an embodiment of the present application;

FIG14 is an exploded schematic diagram of a switch provided in an embodiment of the present application;

In the figure:
1. Switch; 11. Sensing channel; 111. First groove; 112. Through channel;
113, second groove; 12, elastic member; 121, annular rib; 13, operating member; 14, connecting member; 15, concave portion; 16, convex portion; 17, gap;
2. Atomization assembly; 21. First atomizer; 22. Second atomizer; 23. Storage chamber;
24. atomizing core; 25. air guide tube; 26. first flexible member; 261. first channel;
3. airflow detection component; 31. first airflow detector; 32. second airflow detector;
4. Shell; 41. Suction nozzle; 411. Tubular body; 42. Slide groove; 43. First airway;
44. Second airway;
5. Bracket; 51. First support plate; 511. First air guide channel; 512. Second air guide channel; 52. Second support plate; 521. Third air guide channel; 522. Fourth air guide channel; 523. First convex column; 524. Second convex column; 525. Third convex column; 53. Moving space; 54. First side plate; 55. Second side plate; 56. Extended wall; 57. Sealing member; 58. First air inlet hole; 59. Second air inlet hole;
6. Power supply assembly; 61. Power supply; 62. Circuit board.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or suggesting the quantity or order of the indicated technical features relative to importance or implicitly indicating. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement between the components under a certain specific posture (as shown in the accompanying drawings), and if the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an element in the middle. Another element may be directly connected to another element, or one or more intermediate elements may exist therebetween. The terms "vertical", "horizontal", "left", "right" and the like as used herein are for illustrative purposes only and are not intended to be the only implementation method.

1-14 , an embodiment of the present application provides an aerosol generating device, including a housing 4 , an atomizing assembly 2 , an airflow detecting assembly 3 and a power supply assembly 6 .

At least part of the surface layer of the aerosol generating device may be formed by the shell 4, and the user may touch and hold the shell 4. The shell 4 may be connected to the suction nozzle 41, or the suction nozzle 41 may be integrally formed with the shell 4, and the suction nozzle 41 may be held in the mouth of the user, and the user inhales the aerosol generated by the aerosol generating device by sucking the suction nozzle 41, and when the user inhales the suction nozzle 41, the airflow inside the aerosol generating device may change, including causing the gas flow rate, gas flow direction and/or air pressure of the aerosol generating device to change, so that the airflow detection component 3 may detect the airflow change to determine whether a suction event occurs or to count the suction events.

The atomizer assembly 2 is connected to the housing 4 and includes a plurality of atomizers, for example, a first atomizer 21 and a second atomizer 22. The plurality of atomizers may be independent of each other, wherein the atomizer is a device capable of containing a liquid preparation, atomizing the liquid preparation and generating an aerosol.

A storage chamber 23 is formed in the atomizer, and the liquid preparation is stored through the storage chamber 23. The liquid preparation stored in each atomizer may not exceed 10 ml, for example, it may be about 2 ml. The liquid preparation may include a liquid containing tobacco substances containing volatile tobacco flavor components, and may also be a liquid containing non-tobacco substances. The liquid preparation may include water, liquid medicine, solvent, ethanol, plant extract, spices, flavoring agents or vitamin mixtures, etc. The spices may include betel nut extract, menthol, peppermint, green mint oil, various fruity fragrance ingredients, etc., but are not limited to this. The flavoring agent may include ingredients that can provide various fragrances or flavors to the user. The vitamin mixture may be a mixture mixed with at least one of vitamin A, vitamin B, vitamin C and vitamin E, but is not limited to this. Based on the different properties of the liquid preparation, the aerosol generating device can be used for Different fields, such as medical, electronic aerosol atomization, etc.

The "plurality" mentioned here refers to two or more than two. In the embodiment shown in FIG. 2 , there are two atomizers, but this is not limited thereto. At least two of the multiple atomizers can be used to contain different liquid preparations, and the different liquid preparations include liquid preparations with different flavors or liquid preparations with different ingredients and proportions, so that different sensory experiences can be provided to users by switching the atomizers. Of course, in one embodiment, the liquid preparations contained in all the atomizers can be the same. At least two of the multiple atomizers can work independently, thereby independently generating aerosol.

Each nebulizer may also have an atomizing core 24, which is in fluid communication with the storage chamber 23, and is used to atomize the liquid preparation so that the liquid preparation generates an aerosol. The atomizing core 24 may include a liquid absorbing element and a heating element, and the liquid absorbing element may be a porous body or fiber, which can absorb the liquid preparation and can guide the liquid preparation into the atomization range of the heating element; the heating element is used to atomize at least part of the liquid preparation on the liquid absorbing element to form an aerosol. The heating element may be combined with the liquid absorbing element so that the heating element can form a whole with the liquid absorbing element.

Each atomizer may also have an air guide tube 25, which provides at least a portion of the air flow channel between the atomizer core 24 and the mouthpiece 4 fluid. The aerosol generated by atomization of the atomizer core 24 enters the mouthpiece 4 through the air guide tube 25. The storage cavity 23 may be arranged around the air guide tube 25, or the air guide tube 25 may be arranged on one side of the storage cavity 23.

In one example, the atomizer may have an atomizing compartment fluidly connected to the storage chamber 23, the atomizing core 24 is accommodated in the atomizing compartment, the air guide tube 25 is fluidly connected to the atomizing compartment, the storage chamber 23 and/or the air guide tube 25 are located between the mouthpiece 4 and the atomizing compartment, for example, the mouthpiece 4 is located above the storage chamber 23, and the atomizing compartment is located below the storage chamber 23.

Alternatively, in another example, referring to FIG. 2 , at least a portion of the atomizer core 24 is arranged in the air guide tube 25, and a liquid guide hole is provided on the air guide tube 25. The atomizer core 24 is in fluid communication with the storage chamber 23 through the liquid guide hole, and the liquid preparation in the storage chamber 23 can pass through the liquid guide hole to be The liquid absorbing element absorbs and is atomized by the heating element, or a portion of the liquid absorbing element can pass through the liquid conducting hole into the storage chamber 23 to absorb and conduct the liquid preparation.

Please refer to Figure 3, each atomizer may further include a first flexible member 26 having a first channel 261, the first flexible member 26 is disposed adjacent to the mouthpiece 4, the first channel 261 is in fluid communication with the air duct 25 in the atomizer, that is, the first channel 261 provides a channel connecting the air duct 25 and the mouthpiece 4, and the first flexible member 26 may seal the upper end of the corresponding storage cavity 23, or provide a sealed connection between the air duct 25 and the mouthpiece 4.

In one embodiment, referring to FIG. 2 , the mouthpiece 4 has a plurality of tubular bodies 411, which are connected to the air guide tubes 25 of the plurality of atomizers in a one-to-one correspondence, and one end of the tubular body 211 facing away from the air guide tube 25 is an air outlet for smoke to enter the user's oral cavity, so the mouthpiece 4 has a plurality of air outlets, and the plurality of air outlets can be arranged in a row.

Alternatively, in other embodiments, an air outlet is provided at the end of the mouthpiece 4, and the air guide pipes 25 of the plurality of atomizers are all connected to the air outlet.

At least a part of the airflow detection component 3 is arranged in the shell 4, and the airflow detection component 3 includes multiple airflow detectors, for example, a first airflow detector 31 and a second airflow detector 32. The number of airflow detectors is consistent with the number of atomizers, and the multiple airflow detectors are electrically connected to the multiple atomizers in a one-to-one correspondence, that is, the first atomizer 21 is electrically connected to the first airflow detector 31, and the second atomizer 22 is electrically connected to the second airflow detector 32.

In one example, when the airflow path between an airflow detector and an atomizer electrically connected thereto is open, the airflow detector controls the power supply assembly 6 to provide power to the atomizer electrically connected thereto in response to the result of the airflow change detected by the detector, thereby causing the atomizer to generate aerosol. Therefore, the airflow detector can constitute a start switch for starting the atomizer electrically connected thereto to generate aerosol.

More specifically, referring to FIG. 3 , the power supply assembly 6 includes a power supply 61 and a circuit board 62. The power supply 61 may include any suitable battery. The battery may be a rechargeable battery, or the battery may be The battery may be a disposable battery. In one embodiment, the battery is a lithium-ion battery. Alternatively, the battery may be a nickel metal hydride battery, a nickel cadmium battery, or a lithium-based battery, such as lithium cobalt, lithium iron phosphate, lithium titanate, or a lithium polymer battery.

The circuit board 62 has multiple circuits, and the multiple circuits are electrically connected to the power supply 61 to form multiple power supply circuits. Different atomizers can be in different power supply circuits. The multiple power supply circuits can have some lines shared or no lines shared at all.

In the example shown in FIG3 , the airflow detection assembly 3 is fixed on the circuit board 62, and the first airflow detector 31 and the second airflow detector 32 can be held close to each other on the circuit board 62. In one example, the circuit board 62 is connected to the bracket 5 through the airflow detection assembly 3 so as to be held inside the housing 4, and there may be no direct contact between the circuit board 62 and the bracket 5. In one example, the circuit board 62 is connected to the bracket 5 and supported by the bracket 5, and the circuit board 62 can support the airflow detection assembly 3.

The first airflow detector 31 can be arranged on or connected to the power supply circuit between the first nebulizer 21 and the power supply 61, and the second airflow detector 32 can be arranged on or connected to the power supply circuit between the second nebulizer 22 and the power supply 61. The first airflow detector 31 and the second airflow detector 32 form a switch-like element, so that the first airflow detector 31 can control the electrical conduction of the corresponding power supply circuit based on the airflow change result detected by it, so that the first airflow detector 31 can control the power supply 61 to provide the first nebulizer 21 with electricity for its nebulized liquid preparation, and the second airflow detector 32 can control the electrical conduction of the corresponding power supply circuit based on the airflow change result detected by it, so that the second airflow detector 32 can control the power supply to provide the second nebulizer 22 with electricity for its nebulized liquid preparation.

Alternatively, when the airflow path between an airflow detector and an atomizer electrically connected thereto is connected, the airflow detector counts the working parameters of the atomizer electrically connected thereto, such as the accumulated number of puffs or the remaining number of puffs, the accumulated working time and/or the remaining working time, according to the result of detecting the change of the airflow, and when the working parameter reaches a preset value, For example, when the accumulated number of puffs reaches a preset total number of puffs or the remaining number of puffs is exhausted, the sensory prompter is controlled to send a prompt signal to the user, or the power supply assembly 6 is controlled to stop providing power to the atomizer.

In one example, a window is provided on the housing 4 corresponding to the storage cavity 23 of the atomizer, and a user can observe the storage amount of the liquid preparation in the storage cavity 23 through the window.

Please refer to Figures 1 to 10, the aerosol generating device also includes a switch 1. The switch 1 can be moved at least between a first position and a second position relative to the housing 4, and when the switch 1 is located at the first position, the airflow path between the first airflow detector 31 and the first atomizer 21 is connected, so that the first airflow detector 31 can respond to airflow changes to control the power supply 61 to provide power to the first atomizer 21. When the switch 1 is located at the second position, the airflow path between the second airflow detector 32 and the second atomizer 22 is connected, so that the second airflow detector 32 can respond to airflow changes to control the power supply 61 to provide power to the second atomizer 22. Therefore, the atomizer that is in fluid communication with the airflow detector in the airflow detection assembly 3 can be selected by moving the switch 1, so that when the user inhales the mouthpiece 41, the selected atomizer can generate aerosol or the working parameters of the selected atomizer can be counted, and the working parameters of the atomizer include the accumulated number of puffs or the remaining number of puffs, the accumulated working time and/or the remaining working time, etc.

In one embodiment, the switch 1 is further configured to block the airflow path between the second airflow detector 32 and the second atomizer 22 when in the first position, and to block the airflow path between the first airflow detector 31 and the first atomizer 21 when in the second position. Thus, when the switch 1 is in the first position and in the second position, only one of the airflow path between the second airflow detector 32 and the second atomizer 22 and the airflow path between the first airflow detector 31 and the first atomizer 21 is conductive, and the other is disconnected.

In one embodiment, referring to FIG. 3 , the switch 1 is disposed between the atomizing assembly 2 and the airflow detecting assembly 3 . Move between them, and by moving, make the airflow path between at least one atomizer and the airflow detector electrically connected thereto conductive, for example, make the airflow path between the first atomizer 21 and the first airflow detector 31 conductive, or make the airflow path between the second atomizer 22 and the second airflow detector 32 conductive.

In one embodiment, please refer to Figures 3 to 6, the aerosol generating device also includes a bracket 5, the switching switch 1 can move between at least a first position and a second position relative to the bracket 5, and a plurality of connecting channels are provided on the bracket 5, and the plurality of connecting channels are located between the atomization component 2 and the airflow detection component 3, so that the atomizer in the atomization component 2 and the corresponding airflow detector in the airflow detection component 3 can achieve airflow path conduction between the atomizer and the airflow detector only when one or more of the connecting channels are in an open state.

More specifically, referring to Figures 4 to 6, the bracket 5 is provided with a first air guiding channel 511 and a second air guiding channel 512. Moving the position of the switching switch 1 can change the positional relationship between the switching switch 1 and the first air guiding channel 511 and the second air guiding channel 512.

Please refer to Fig. 5, when the switch 1 is in the first position, the first air guide channel 511 is opened, so that the airflow path between the first atomizer 21 and the first airflow detector 31 is connected. Please refer to Fig. 6, when the switch 1 is in the second position, the second air guide channel 512 is opened, so that the airflow path between the second atomizer 22 and the second airflow detector 32 is connected.

As an example, please refer to FIG. 5 , when the switch 1 is in the first position, the switch 1 blocks the second air channel 512 ; please refer to FIG. 6 , when the switch 1 is in the second position, the switch 1 blocks the first air channel 511 .

More specifically, please refer to Figure 5. When the switching switch 1 is in the first position, the switching switch 1 blocks the second air guiding channel 512, so that only the first air guiding channel 511 is opened among the first air guiding channel 511 and the second air guiding channel 512, thereby making the airflow path between the first atomizer 21 and the second atomizer 31 only between the first atomizer 21 and the corresponding airflow detector conductive, and the airflow path between the second atomizer 22 and the corresponding airflow detector is disconnected.

Please refer to Figure 6. When the switching switch 1 is in the second position, the switching switch 1 blocks the first channel 511, so that only the second air guiding channel 512 is open among the first air guiding channel 511 and the second air guiding channel 512, thereby making the airflow path between the first atomizer 21 and the second atomizer 22 and the corresponding airflow detector only conductive, and the airflow path between the first atomizer 21 and the corresponding airflow detector is disconnected.

As an example, the airflow path between the atomizer assembly and the airflow detection assembly is located outside the switch, and the switch can block the airflow path instead of providing an airflow path, so that the airflow between the atomizer and the airflow detector electrically connected thereto cannot pass through the switch, and the switch does not have an airflow path inside that can connect the atomizer and the airflow detector electrically connected thereto. Based on this, the switch can be a solid structure.

Alternatively, in one example, referring to Figures 4-6, a sensing channel 11 is formed in the switching switch 1, and the airflow path between the atomizer and the airflow detector electrically connected thereto includes the sensing channel 11, so that the airflow between the atomizer and the airflow detector electrically connected thereto needs to flow through the sensing channel 11.

More specifically, please refer to FIG. 5 , when the switch 1 is in the first position, the sensing channel 11 on the switch 1 is connected to the first air channel 511, so that the first air channel 511 is opened, and the airflow between the first atomizer 21 and the first airflow detector 31 can flow along the first air channel 511 and the sensing channel 11, so that the airflow path between the first atomizer 21 and the first airflow detector 31 is connected. At this time, the second air channel 512 can be blocked by other parts of the switch 1 because there is no sensing channel 11 connected to it, so that the airflow path between the second atomizer 22 and the corresponding airflow detector is disconnected.

6, when the switch 1 is in the second position, the sensing channel 11 on the switch 1 is connected to the second air channel 512, so that the second air channel 512 is opened, and the air flow between the second atomizer and the second air flow detector can flow along the second air channel 512 and the sensing channel 11. The first air-conducting channel 512 is in a closed state because the sensing channel 11 is not connected to the first air-conducting channel 512 and is blocked by other parts of the switch 1, so that the air-conducting path between the first air-conducting channel 512 and the corresponding air-conducting detector is disconnected.

In one embodiment, referring to FIG. 4 to FIG. 6 , the bracket 5 includes a first support plate 51, the switch 1 and the airflow detection assembly 3 are arranged on opposite sides of the first support plate 51, the switch 1 and the airflow detection assembly 3 can be spaced apart by the first support plate 51, the first support plate 51 can support the switch 1, and the switch 1 can be slidably connected to the first support plate 1. The first air guide channel 511 is located between the first airflow detector 31 and the switch 1, and the second air guide channel 512 is located between the second airflow detector 32 and the switch 1. More specifically, at least a portion of the first air guide channel 511 and at least a portion of the second air guide channel 512 can be formed on the first support plate 51.

Thus, referring to FIG5 , when the switch 1 is in the first position, the first air guide channel 511 is opened, and the first air guide channel 511 is connected to the sensing channel 11, so that the airflow path between the first airflow detector 31 and the switch 1 is connected. Referring to FIG6 , when the switch 1 is in the second position, the second air guide channel 512 is opened, and the second air guide channel 512 is connected to the sensing channel 11, so that the airflow path between the second airflow detector 32 and the switch 1 is connected.

In one embodiment, referring to Figures 4-6, the bracket 5 includes a second support plate 52, the switching switch 1 and the atomization assembly 2 are arranged on opposite sides of the second support plate 52, the atomizer in the atomization assembly 2 can be separated from the switching switch 1 by the second support plate 52, the second support plate 52 can support the atomization assembly 2, and the switching switch 1 can be slidably connected to the second support plate 52.

A third air channel 521 may be provided between the first atomizer 21 and the switch 1, and a fourth air channel 522 may be provided between the second atomizer 22 and the switch 1. At least a portion of the third air channel 521 and at least a portion of the fourth air channel 522 may be formed on the second support plate 52. Moving the position of the switch 1 can change the position of the switch 1 and the third air channel 521. and the positional relationship between the fourth air guide channel 522.

Please refer to FIG5 , when the switch 1 is in the first position, the third air guide channel 521 is opened, and the third air guide channel 521 is connected to the sensing channel 11, so that the air flow path between the first atomizer 21 and the switch 1 is connected. Please refer to FIG6 , when the switch 1 is in the second position, the fourth air guide channel 522 is opened, and the fourth air guide channel 522 is connected to the sensing channel 11, so that the air flow path between the second atomizer 22 and the switch 1 is connected.

In order to prevent the liquid leaking from the atomizer assembly 1 from entering the sensing channel 11 in the switch 1, thereby blocking the sensing channel 11 or flowing to the airflow detector through the sensing channel 11, the bracket 5 has a plurality of first bosses 523 protruding from the second support plate 52 toward the atomizer assembly, and the third air guide channel 521 and the fourth air guide channel 522 are respectively formed in different first bosses 523. The first bosses 523 can prevent the liquid leaking to the second support plate 52 from entering the third air guide channel 521 and the fourth air guide channel 522, thereby preventing the liquid from entering the sensing channel 11. Among them, the second support plate 52 and the first bosses 523 can be integrally formed.

In one embodiment, referring to Figures 4 to 6 and Figure 12, the bracket 5 includes a first support plate 51 and a second support plate 52, a moving space 53 is formed between the first support plate 51 and the second support plate 52, at least a part of the switching switch 1 is accommodated in the moving space 53, and at least a part of the switching switch 1 can move between the first position and the second position in the moving space.

More specifically, referring to Figures 4 to 6 and Figure 12, the travel trajectory of the switching switch 1 between the first position and the second position can be a straight line, and the bracket 5 can also include a first side plate 54 and a second side plate 55 arranged opposite to each other, and the moving space 53 is located between the first side plate 54 and the second side plate 55. The first side plate 54 and the second side plate 55 are used to limit the travel of the switching switch 1 to prevent the switching switch 1 from moving beyond the limited position.

The switch 1 is arranged between the first support plate 51 and the second support plate 52, the atomizing assembly 2 is arranged above the second support plate 52, and the airflow detection assembly 3 is arranged below the first support plate 51, so that when the switch 1 moves in the moving space 53, the atomizing assembly 2 and the airflow detection assembly 3 are The detection component 3 can remain relatively still, and the switching switch 1 can move simultaneously relative to the atomization component 2 and the airflow detection component 3, and simultaneously relative to the first support plate 51 and the second support plate 52, so that the first air guide channel 511 and the third air guide channel 521 can be connected to the same sensing channel 11 at the same time, and thus opened at the same time, and the second air guide channel 512 and the fourth air guide channel 522 can be connected to the same sensing channel 11 at the same time, and thus opened at the same time.

As an example, referring to Figures 4 to 6, the bracket 5 also includes a plurality of extension walls 56, which extend from the first support plate 51 toward the direction of the airflow detection assembly 3, and the plurality of extension walls 56 are connected to form a plurality of sensing cavities spaced apart from each other, and different airflow detectors define partial boundaries of different sensing cavities. The aerosol generating device also includes a seal 57, which is arranged around the airflow detector and provides a sealed connection between the airflow detector and the extension wall 56, thereby sealing the sensing cavity, so that the airflow in the sensing cavity mainly flows through the air guide channel opened on the first support plate 51. Among them, the first support plate 51 and the extension wall 56 can be integrally formed.

In one embodiment, referring to Figures 5, 6, 13 and 14, the switching switch 1 has multiple sensing channels 11, for example, a first sensing channel and a second sensing channel, the number of the sensing channels 11 is consistent with the number of the atomizers, and the multiple sensing channels can correspond one-to-one to multiple atomizers and airflow detectors electrically connected to the atomizers, and are part of the airflow path between the corresponding atomizers and the airflow detectors.

More specifically, referring to Figure 5, when the switching switch 1 is in the first position, the first sensing channel is connected to the first air channel 511, and/or the first sensing channel is connected to the third air channel 521, so that the airflow path between the first atomizer 21 and the first airflow detector 31 is connected.

5 , when the switch 1 is in the second position, the second sensing channel is connected to the second air channel 512 , and/or the second sensing channel is connected to the fourth air channel 522 , so that the airflow path between the second atomizer 22 and the second airflow detector 32 is connected.

In one embodiment, referring to FIG. 4 , the switch 1 is configured to be movable relative to the housing 4. Move to the third position, and when located at the third position, the airflow path between the first airflow detector 31 and the first atomizer 21 is connected, and the airflow path between the second airflow detector 32 and the second atomizer 22 is connected. At this time, the first atomizer 21 and the second atomizer 22 can generate aerosol at the same time, or the working parameters of the first atomizer 21 and the second atomizer 22 can be counted at the same time.

As an example, the third position is located between the first position and the second position.

As an example, referring to FIGS. 4 to 6 , the first sensing channel includes a first groove 111 disposed on the first end of the switching switch, a second groove 113 disposed on the second end of the switching switch 1, and a through channel 112 that penetrates the switching switch 1 and connects the first groove 111 and the second groove 113, and the first groove 111 and the second groove 113 have the same extension direction. The first sensing channel and the second sensing channel may have the same structure and may be axially symmetrical with each other, but the present invention is not limited thereto.

Referring to Figure 4, when the switching switch 1 is in the third position, the first groove 111 of the first sensing channel extends to communicate with the first air guiding channel 511, the first groove 111 of the second sensing channel extends to communicate with the second air guiding channel 512, the second groove 113 of the first sensing channel extends to communicate with the third air guiding channel 521, and the second groove 113 of the second sensing channel extends to communicate with the fourth air guiding channel 522, thereby making the airflow path between the first airflow detector 31 and the first nebulizer 21 connected, and the airflow path between the second airflow detector 32 and the second nebulizer 22 connected.

Referring to FIG. 5 , when the switch 1 is in the first position, the first groove 111 of the first sensing channel extends to communicate with the first air guide channel 511, the first groove 111 of the second sensing channel is staggered with the second air guide channel 512, the second groove 113 of the first sensing channel extends to communicate with the third air guide channel 521, and the second groove 113 of the second sensing channel is staggered with the fourth air guide channel 522, so that the air flow path between the first air flow detector 31 and the first atomizer 21 is connected, and the air flow path between the second air flow detector 32 and the second atomizer 22 is connected. The flow path is disconnected.

Referring to Figure 6, when the switching switch 1 is in the second position, the first groove 111 of the first sensing channel is staggered with the first air guiding channel 511, the first groove 111 of the second sensing channel is interconnected with the second air guiding channel 512, the second groove 113 of the first sensing channel is staggered with the third air guiding channel 521, and the second groove 113 of the second sensing channel is interconnected with the fourth air guiding channel 522, so that the airflow path between the first airflow detector 31 and the first atomizer 21 is disconnected, while the airflow path between the second airflow detector 32 and the second atomizer 22 is connected.

In one embodiment, referring to FIG. 13 and FIG. 14 , the switch 1 includes an elastic member 12, and the sensing channel 11 is formed in the elastic member 12. The elastic member 12 can be made of a flexible material such as silicone, rubber, etc., and has elasticity. An annular convex rib 121 surrounding the end of the sensing channel 11 is formed on the elastic member 12, and the annular convex rib 121 elastically abuts against the bracket 5, so that the sensing channel 11 is airtightly connected with the corresponding air guide channel or airtightly isolated from the corresponding air guide channel. Among them, at least a part of the elastic member 12 can be accommodated in the moving space 53.

As an example, referring to Figure 12, an annular rib 121 is formed at the first end of the elastic member 12, surrounding the first groove 111, and elastically abutting the first support plate 51, so that the first groove 111 is air-tightly connected when connected to the first air guiding channel 511 or the second air guiding channel 512, and at the same time, the first groove 111 is air-tightly isolated when it is offset from the first air guiding channel 511 or the second air guiding channel 512, so as to block the air path between the first air guiding channel 511 and the second air guiding channel 512 to prevent air exchange between the two.

This can prevent other nebulizers from being mistakenly started to atomize liquid preparations to produce aerosol or to count the working parameters of other nebulizers when one nebulizer is intended to be started to atomize liquid preparations to produce aerosol or to start counting the working parameters of one nebulizer.

Referring to FIG. 12 to FIG. 14 , the annular rib 121 on the first end has a plurality of first grooves 111 respectively surrounding different sensing channels 11 .

As an example, referring to Figures 13 and 14, an annular rib 121 is formed at the second end of the elastic member 12, surrounding the second groove 113, and elastically abutting the second support plate 52, so that the second groove 113 is air-tightly connected when connected to the third air guiding channel 521 or the fourth air guiding channel 522, and at the same time, the second groove 113 is air-tightly isolated when it is offset from the third air guiding channel 521 or the fourth air guiding channel 522, so as to block the air path between the third air guiding channel 521 and the fourth air guiding channel 522 and prevent air exchange between the two.

Referring to FIG. 13 and FIG. 14 , the annular rib 121 on the second end has a plurality of second grooves 113 respectively surrounding different sensing channels 11 .

In one embodiment, referring to FIG. 12 , a slide groove 42 is formed on the housing 4, and the switch 1 further includes an operating member 13, a portion of the operating member 13 is located in the slide groove 42, and the switch 1 is configured to move between the first position and the second position by the operating member 13 moving along the slide groove 42. When the operating member 13 slides along the slide groove 42, at least a portion of the elastic member 12 moves in the moving space 53.

The slide groove 42 may be a hole that penetrates the surface of the housing 4, and a portion of the operating member 13 extends outside the housing 4 and is exposed through the slide groove 42, so that a user can manually operate the operating member 13 to move the operating member 13 along the slide groove 42, thereby driving the elastic member 12 to move between the first position and the second position. In other examples, the operating member 13 may be electrically driven, and the operating member 13 is driven to move along the slide groove 42 by a motor, a motor or other components in the aerosol generating device.

13 and 14 , the switch 1 may further include a connecting member 14, the hardness of the connecting member 14 is greater than the hardness of the elastic member 12, the elastic member 12 and the connecting member 14 are connected as a whole, the connecting member 14 is used to support the elastic member 12, and at least a part of the connecting member 14 may be located in the moving space 53. A part of the operating member 13 extends to connect with the connecting member 14, and the operating member 13 is connected to the elastic member 12 through the connecting member 14, so that when the operating member 13 moves, it can drive the elastic member 12 to move.

It should be noted that the elastic member 12 having the sensing channel 11 is optional but not mandatory. In other embodiments, the sensing channel 11 may not be provided on the elastic member 12, and the elastic member 12 may be moved to block the first air guide channel 511 and/or the third air guide channel 521 to disconnect the air flow path between the first nebulizer 21 and the first air flow detector 31, or the second air guide channel 512 and/or the fourth air guide channel 522 may be blocked to disconnect the air flow path between the second nebulizer 22 and the second air flow detector 32.

It should be noted that the second support plate 52 is optional but not mandatory, and part of the boundary of the moving space 53 may not be defined by the second support plate 52 .

In one embodiment, referring to Figures 7 to 10, the shell 4 has a first air duct 43 connected to the first atomizer 21 and a second air duct 44 connected to the second atomizer 22; the switching switch 1 is configured so that when it is in the first position, the air intake path between the first air duct 43 and the outside is connected, and when it is in the second position, the air intake path between the second air duct 44 and the outside is connected.

As an example, referring to FIG. 9 , when the switch 1 is in the first position, the air intake path between the second air passage 44 and the outside is blocked, so that the outside air cannot enter the second atomizer 22 through the second air passage 44. Referring to FIG. 10 , when the switch 1 is in the second position, the air intake path between the first air passage 43 and the outside is blocked, so that the outside air cannot enter the first atomizer 21 through the first air passage 43. Thus, when the switch 1 is in the first position or the second position, the first air passage 43 and the second air passage 44 cannot be connected to the outside at the same time, so as to ensure that the smoke inhaled into the oral cavity by the user has a large concentration, and to prevent the outside air from being directly inhaled into the oral cavity by the user through other non-selected atomizers, thereby reducing the concentration of smoke generated by the selected atomizer being inhaled.

As an example, referring to Figure 8, the switch 1 can be moved to the third position. When the switch 1 is in the third position, the first air duct 43 and the second air duct 44 are connected to the outside at the same time, and the outside air can enter the first atomizer 21 and the second atomizer 22 respectively through the first air duct 43 and the second air duct 44 at the same time.

As an example, the second support plate 52 is provided with a first The air inlet 58 and the second air inlet 59 communicated with the second air passage 44. The second end of the switch 1 is partially a recess 15 and partially a protrusion 16, with a gap 17 between the recess 15 and the second support plate 52, and at least a part of the protrusion 16 can abut the second support plate 52 in an airtight manner.

Referring to FIG. 9 , when the switch 1 is in the first position, the gap 17 is connected to the first air inlet 58, and the outside air can enter the first air passage 43 through the gap 17 in the moving space 53 and the first air inlet 58 on the second support plate 52 in sequence. At this time, a convex portion 16 of the switch 1 is arranged corresponding to the second air inlet 59, and the convex portion 16 is in airtight contact with the second support plate 52 in an annular shape at the periphery of the second air inlet 59, thereby blocking the air path between the gap 17 and the second air inlet 59, so that the outside air cannot enter the second air passage 44.

Referring to FIG. 10 , when the switch 1 is in the second position, the gap 17 is connected to the second air inlet 59, and the outside air can enter the second air passage 44 through the gap 17 in the moving space 53 and the second air inlet 59 on the second support plate 52 in sequence. At this time, a convex portion 16 of the switch 1 is arranged corresponding to the first air inlet 58, and the convex portion 16 is in airtight contact with the second support plate 52 in an annular shape at the periphery of the first air inlet 58, thereby blocking the air path between the gap 17 and the first air inlet 58, so that the outside air cannot enter the first air passage 43.

Referring to Figure 8, when the switching switch 1 is in the third position, the gap 17 is connected to the first air inlet hole 58 and the second air inlet hole 59 at the same time, and the outside air can enter the first air duct 43 through the gap 17 in the moving space 53 and the first air inlet hole 58 on the second support plate 52 in sequence, and enter the second air duct 44 through the gap 17 in the moving space 53 and the second air inlet hole 59 on the second support plate 52 in sequence.

As an example, the first air channel 43 and the second air channel 44 are independent and isolated from each other. An air inlet passage connected to the outside is also formed in the housing 4. The first air channel 43 and the second air channel 44 can share the air inlet passage. The gap 17 in the moving space 53 can be a component of the air inlet passage. part.

In the embodiments shown in Figures 8-10 and Figures 13 and 14, the second end of the elastic member 12 has two annular ribs 121 that are not arranged corresponding to the sensing channel 11. The two annular ribs 121 are arranged corresponding to the first air inlet hole 58 and the second air inlet hole 59, respectively. For convenience, they are respectively referred to as the first annular rib 1211 and the second annular rib 1212.

Referring to Figure 9, when the switching switch 1 is in the first position, the first air inlet hole 58 is located outside the first annular convex rib 1211 and is connected to the gap 17 in the moving space 53, and the port of the second air inlet hole 59 is located inside the second annular convex rib 1212 and surrounded by the second annular convex rib 1212, thereby being airtightly isolated from the gap 17 in the moving space 53.

Referring to Figure 10, when the switching switch 1 is in the second position, the second air inlet hole 59 is located outside the second annular convex rib 1212 and is connected to the gap 17 in the moving space 53, and the port of the first air inlet hole 58 is located inside the first annular convex rib 1211 and is surrounded by the first annular convex rib 1211, thereby being airtightly isolated from the gap 17 in the moving space 53.

Referring to Figure 8, when the switching switch 1 is in the third position, the first air inlet hole 58 is located outside the first annular rib 1211 and is connected to the gap 17 in the moving space 53, and the second air inlet hole 59 is located outside the second annular rib 1212 and is connected to the gap 17 in the moving space 53.

In the embodiments shown in FIGS. 4 and 11 , in order to prevent the liquid leaking from the atomizer assembly 2 from entering the mobile space 53 and then leaking out of the housing 4, the bracket 5 has a plurality of second bosses 524 protruding from the second support plate 52 toward the atomizer assembly 2, and a portion of the first air inlet hole 58 and a portion of the second air inlet hole 59 are respectively formed in different second bosses 524, and the second bosses 524 can prevent the liquid leaking to the second support plate 52 from entering the mobile space 53. The second support plate 52 and the second bosses 524 can be integrally formed.

In the embodiment shown in FIGS. 3 and 4 , the circuit board 62 and the atomizer assembly 2 are arranged on opposite sides of the second support plate 52. The second support plate 52 has a plurality of third bosses 525. The third bosses 525 are formed with wire holes. The leads of the atomizer pass through the wire holes in the third bosses 525. The third boss 525 extends from the second support plate 52 toward the atomizer assembly 2 so that its upper end is higher than the second support plate 52, which can prevent the liquid on the second support plate 52 from entering the wire hole, thereby helping to protect the circuit board 63. The second support plate 52 and the third boss 525 can be integrally formed.

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 (15)

An aerosol generating device, characterized in that it comprises: case; An atomization assembly, connected to the housing, and comprising a first atomizer and a second atomizer; A power source, used to provide power to the first atomizer and/or the second atomizer; an airflow detection assembly, at least partially disposed in the housing, comprising a first airflow detector electrically connected to the first atomizer and a second airflow detector electrically connected to the second atomizer; A switching switch is configured to be movable between at least a first position and a second position relative to the shell, and the switching switch is used to conduct the airflow path between the first airflow detector and the first atomizer when in the first position, so that the first airflow detector can respond to airflow changes to control the power supply to provide power to the first atomizer; and the switching switch is used to conduct the airflow path between the second airflow detector and the second atomizer when in the second position, so that the second airflow detector can respond to airflow changes to control the power supply to provide power to the second atomizer. The aerosol generating device as described in claim 1 is characterized in that the switching switch is also configured to block the airflow path between the second airflow detector and the second nebulizer when in the first position; and to block the airflow path between the first airflow detector and the first nebulizer when in the second position. The aerosol generating device as described in claim 1 is characterized in that the switching switch is configured to be movable to a third position relative to the shell, and when it is located at the third position, the airflow path between the first airflow detector and the first nebulizer is connected, and the airflow path between the second airflow detector and the second nebulizer is connected. The aerosol generating device of claim 3, wherein the third position is located between the first position and the second position. The aerosol generating device according to claim 1, characterized in that the switching switch is arranged between the atomization component and the airflow detection component. The aerosol generating device according to claim 1, characterized in that the aerosol generating device further comprises a bracket, and the bracket is provided with a first air guiding channel and a second air guiding channel; The switch can move relative to the bracket and, when located at the first position, opens the first air guide channel so that the air flow path between the first atomizer and the first air flow detector is connected; And when the switching switch is located at the second position, the second air guide channel is opened, so that the air flow path between the second atomizer and the second air flow detector is connected. The aerosol generating device according to claim 6, characterized in that when the switch is located at the first position, the switch blocks the second air guide channel; When the switch is located at the second position, the switch blocks the first air guide channel. The aerosol generating device according to claim 6, characterized in that the switch comprises an elastic member, and the elastic member has a sensing channel running through both sides of the elastic member; When the switch is located at the first position, the sensing channel is connected to the first air-conducting channel; When the switch is located at the second position, the sensing channel is connected to the second air guide channel. The aerosol generating device as described in claim 8 is characterized in that an annular rib surrounding the end of the sensing channel is formed on the elastic member, and the annular rib elastically abuts against the bracket to make the sensing channel airtightly connected with the corresponding air guiding channel or airtightly isolated from the corresponding air guiding channel. The aerosol generating device as described in claim 8 is characterized in that the switching switch also includes an operating member connected to the elastic member, and a portion of the operating member extends to the outside of the shell, which is used to provide a user with an operation to drive the elastic member to move between the first position and the second position. The aerosol generating device according to claim 8, characterized in that the elastic member is provided with a first sensing channel and a second sensing channel; When the switch is located at the first position, the first sensing channel is connected to the first air guide channel; When the switch is located at the second position, the second sensing channel is connected to the second air guiding channel. The aerosol generating device as described in claim 11 is characterized in that the first sensing channel includes a first groove arranged on the first end of the switching switch, a second groove arranged on the second end of the switching switch, and a through channel that passes through the switching switch and connects the first groove and the second groove, and the first groove and the second groove have the same extension direction. The aerosol generating device as described in claim 6 is characterized in that the bracket includes a second support plate and a first support plate, a moving space is formed between the second support plate and the first support plate, and at least a part of the switching switch moves between the first position and the second position in the moving space. The aerosol generating device according to claim 1, characterized in that the housing has a first air passage connected to the first atomizer and a second air passage connected to the second atomizer; The switching switch is configured to, when located in the first position, open the air intake path between the first air duct and the outside world, while blocking the air intake path between the second air duct and the outside world; and to, when located in the second position, open the air intake path between the second air duct and the outside world, while blocking the air intake path between the first air duct and the outside world. The aerosol generating device according to claim 1, characterized in that the aerosol generating device further comprises a circuit board, and the first airflow detector and the second airflow detector are held close to each other on the circuit board.