WO2024244966A1 - Aerosol generation device - Google Patents

Abstract

The present invention provides an aerosol generation device. The aerosol generation device comprises a device body and a heating body. The heating body comprises a substrate and a heating member; the heating member is provided on the substrate; a cavity is defined in the substrate; a first heat conduction member and a second heat conduction member are provided in the substrate; the first heat conduction member and the second heat conduction member divide the cavity into an accommodation cavity and a ventilation cavity; an air inlet channel is formed in the side surface of the substrate, and is communicated with the ventilation cavity; through holes are formed in the first heat conduction member. Air flowing into the ventilation cavity through the air inlet channel in the side surface of the substrate further flows into the through holes, the flowing direction of the air changes, and turbulent flow is formed in the ventilation cavity, such that heat exchange with the first heat conduction member, the second heat conduction member, and the substrate can be more sufficiently carried out, thereby improving the heat exchange efficiency; and the air can be effectively heated without increasing the power of the heating member, such that the service life of the substrate, the first heat conduction member, and the second heat conduction member is prolonged, and the device is not prone to damage and has higher stability.

Description

An aerosol generating device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 2023213206420 filed with the Chinese Patent Office on May 26, 2023, entitled “A Aerosol Generating Device”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present disclosure relates to the technical field of aerosol generation, and in particular to an aerosol generating device.

Background Art

The aerosol generating system usually consists of an aerosol generating device and an aerosol generating product. The aerosol generating product is inserted into the aerosol generating device, and the heating module of the aerosol generating device heats and bakes the aerosol generating product, thereby generating an aerosol for the user to inhale. The heating element is a key component of the heating module. The substrate is generally made of a material with excellent thermal conductivity and stable properties. Air holes that allow air circulation are set inside the substrate, and a heating element is attached to the substrate. When in use, the heating element converts electrical energy into thermal energy and transfers it to the substrate. The substrate further heats the air, and the heated air bakes and heats the aerosol generating product, thereby generating an aerosol.

However, in order to ensure that the air can be heated quickly, the existing substrate needs to increase the power of the heating element so that the substrate can be maintained at a higher operating temperature for continuous operation, resulting in a short service life of the substrate, easy damage to the equipment, and poor stability.

Utility Model Content

In order to solve the problems existing in the prior art, an object of the present disclosure is to provide an aerosol generating device.

The present disclosure provides the following technical solutions:

An aerosol generating device comprises a device body into which an aerosol generating product can be inserted, and also comprises a heating element arranged in the device body and configured to heat the aerosol generating product, wherein the heating element The heat body comprises a base and a heat generating element, wherein the heat generating element is arranged on the base, a cavity is defined inside the base, and a first heat conducting element and a second heat conducting element are arranged inside the base;

The first heat-conducting member and the second heat-conducting member separate the cavity into a receiving cavity and a ventilation cavity, the receiving cavity is located on a side of the first heat-conducting member facing away from the second heat-conducting member, and the ventilation cavity is located between the first heat-conducting member and the second heat-conducting member;

An air inlet channel is provided on the side of the base, and the air inlet channel is communicated with the ventilation cavity. A through hole is provided on the first heat conducting member, and the through hole is communicated with the accommodating cavity and the ventilation cavity respectively.

As an optional solution for the aerosol generating device, a heat conducting portion is provided on a side of the second heat conducting member facing the first heat conducting member.

As an optional solution for the aerosol generating device, a card block is provided on the second heat conducting member, and a card slot is provided on the first heat conducting member, and the card block can be embedded in the card slot.

As a further optional solution for the aerosol generating device, the heating element further includes a structural member, and the structural member is arranged on one side of the first heat conducting member or the second heat conducting member.

As an optional solution for the aerosol generating device, the aerosol generating device also includes a fixing component arranged in the device body, the fixing component forms a receiving channel for inserting the aerosol generating product, the device body includes a shell, the shell is provided with an opening, and the receiving channel is connected to the opening.

As an optional solution for the aerosol generating device, the device body further includes a base, and the fixing assembly includes a first fixing member, and the first fixing member is embedded and fixed to the base.

As an optional solution for the aerosol generating device, the fixing assembly further includes a second fixing member, and the substrate is arranged between the first fixing member and the second fixing member.

As an optional solution for the aerosol generating device, the fixing assembly further includes a third fixing member, and the third fixing member is arranged between the second fixing member and the housing.

As an optional solution for the aerosol generating device, the first fixing member is provided with an aerosol A hole is connected to the air inlet passage.

As an optional solution for the aerosol generating device, the aerosol generating device further comprises an isolation component disposed in the device body, and the isolation component is disposed on the periphery of the heating element.

The embodiments of the present disclosure have the following beneficial effects:

In the above-mentioned aerosol generating device, the air inlet channel is connected to the ventilation cavity, and the ventilation cavity is connected to the accommodating cavity through the through hole on the first heat-conducting member to form an airflow channel. The heating element arranged on the substrate heats the substrate, and the substrate transfers the heat to the first heat-conducting member and the second heat-conducting member. The air flowing into the ventilation cavity through the air inlet channel on the side of the substrate further flows into the through hole, and its flow direction changes, forming turbulence in the ventilation cavity, so that it can more fully exchange heat with the first heat-conducting member, the second heat-conducting member and the substrate, and the heat exchange efficiency is improved. The air can be effectively heated without increasing the power of the heating element, avoiding the substrate, the first heat-conducting member and the second heat-conducting member from being maintained at a higher operating temperature for continuous operation, which is beneficial to extending the service life of the substrate, the first heat-conducting member and the second heat-conducting member, making the equipment less prone to damage and more stable.

In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and understandable, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram showing the overall structure of an aerosol generating device provided in an embodiment of the present disclosure;

FIG. 2 shows a schematic diagram of a partial structure of an aerosol generating device provided by an embodiment of the present disclosure. picture;

FIG3 shows a schematic structural diagram of a heating element in an aerosol generating device provided by an embodiment of the present disclosure;

FIG4 is a cross-sectional schematic diagram of a heating element in an aerosol generating device provided in an embodiment of the present disclosure;

FIG5 is a schematic diagram showing the internal structure of a heating element in an aerosol generating device provided by an embodiment of the present disclosure;

FIG6 shows a schematic diagram of the distribution of an air inlet channel in an aerosol generating device provided in an embodiment of the present disclosure;

FIG7 shows a schematic structural diagram of a heating element in an aerosol generating device provided by an embodiment of the present disclosure;

FIG8 is a cross-sectional schematic diagram of a heating element in an aerosol generating device provided by an embodiment of the present disclosure;

FIG9 is a cross-sectional schematic diagram of a heating element in an aerosol generating device provided by an embodiment of the present disclosure at another viewing angle;

FIG10 is a schematic cross-sectional view of a heating element in an aerosol generating device provided in an embodiment of the present disclosure.

Description of main component symbols:
100-device body; 110-housing; 111-opening; 112-air inlet; 120-base; 121-first sealing ring; 200-heating element; 210-base; 211-air inlet channel; 212-first heat conducting member; 212a-through hole; 212b-card slot; 213-second heat conducting member; 213a-heat conducting part; 213b-card block; 214-accommodating cavity; 215-ventilation cavity; 216-positioning groove; 220-heating element; 221-first heating zone; 222-second heating zone; 223-third heating zone; 230-structural member; 300-fixing assembly; 301-accommodating channel; 310-first fixing member; 311-air hole; 312-first limiting boss; 312a-positioning part; 320-second fixing member; 321-second limiting boss; 330-third fixing member; 331-second sealing ring; 400-isolating assembly Piece.

DETAILED DESCRIPTION

Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and cannot be understood as limiting the present disclosure.

Referring to Fig. 1, this embodiment provides an aerosol generating device, which includes a device body 100 and a heating element 200 disposed in the device body 100. When in use, an aerosol generating product is inserted into the device body 100, and the heating element 200 heats and bakes the aerosol generating product to generate aerosol or smoke.

Please refer to FIG. 2 , specifically, the device body 100 is composed of a housing 110 and a base 120 .

The housing 110 is tubular, and one end of the housing 110 is provided with an opening 111 and an air inlet 112. The opening 111 is for inserting the aerosol generating product, and the air inlet 112 is for external air to enter the interior of the housing 110.

The base 120 is disposed in the housing 110, dividing the interior of the housing 110 into two areas. The heating element 200 is installed in the area of the base 120 facing the opening 111, and the area of the base 120 facing away from the opening 111 is configured to install electronic devices such as power supplies and control boards.

In this embodiment, in order to ensure that the heating element 200 is isolated from electronic components such as a power source to prevent the generated aerosol or smoke from corroding the electronic components such as the power source, a first sealing ring 121 is provided on the base 120. The first sealing ring 121 abuts against the inner wall of the housing 110 to enhance the sealing of the connection between the base 120 and the housing 110.

Please refer to FIG. 3 . Specifically, the heating element 200 includes a base 210 and a heating element 220 , and the heating element 220 is disposed on the base 210 .

When in use, the heating element 220 converts electrical energy into heat energy and transmits it to the substrate 210. The substrate 210 further heats the air, and the hot air heats the aerosol-generating article, thereby generating aerosol.

Please refer to FIG. 4 and FIG. 5 , specifically, the base 210 is arranged in a tubular shape, and a cavity is defined inside the base 210. An air inlet channel 211 communicating with the cavity is arranged on the side of the base 210, and a first heat conducting member 212 and a second heat conducting member 213 are arranged inside the base 210. When the heating element 220 heats the base 210, the base 210 also transfers heat to the first heat conducting member 212 and the second heat conducting member 213, so that the first heat conducting member 212 and the second heat conducting member 213 are heated.

In this specific embodiment, the base 210 is a round tube, the cavity inside the base 210 is cylindrical, and the central axis of the cavity coincides with the central axis of the base 210. Accordingly, the air inlet channel 211 is arranged perpendicular to the axial direction of the base 210.

Specifically, the first heat-conducting member 212 and the second heat-conducting member 213 are arranged along the central axis of the base 210, and the cavity is divided into a receiving cavity 214 and a ventilation cavity 215. The receiving cavity 214 is located on the side of the first heat-conducting member 212 facing away from the second heat-conducting member 213, and is communicated with the opening 111, and at least part of the aerosol generating product is embedded in the receiving cavity 214. The ventilation cavity 215 is located between the first heat-conducting member 212 and the second heat-conducting member 213, and the air inlet channel 211 is communicated with the ventilation cavity 215.

In addition, a through hole 212a is provided on the first heat conducting member 212. One end of the through hole 212a is communicated with the accommodating cavity 214, and the other end of the through hole 212a is communicated with the ventilation cavity 215. The number of the through hole 212a can be one or more.

In this specific embodiment, the first heat conductor 212 and the second heat conductor 213 are both plate-shaped, the central axis of the first heat conductor 212 and the second heat conductor 213 coincide with the central axis of the base 210, and the through hole 212a is arranged along the central axis direction of the base 210, which is indicated by the X direction in the figure.

The outside air entering the housing 110 flows into the ventilation cavity 215 through the air inlet channel 211 on the side of the base 210, and then flows into the accommodation cavity 214 through the through hole 212a. The air exchanges heat with the substrate 210, the first heat-conducting member 212 and the second heat-conducting member 213 respectively, and heats up after absorbing the heat from the substrate 210, the first heat-conducting member 212 and the second heat-conducting member 213, thereby heating the aerosol generating product.

Please refer to FIG6 . In this embodiment, the base 210 is vertically arranged, and the first heat conducting member 212 is located above the second heat conducting member 213. The air inlet channel 211 is opened at the bottom of the side wall of the base 210 and connected to the bottom end surface of the base 210. Three air inlet channels 211 are arranged along the circumference of the base 210. In addition, the second heat conducting member 213 is aligned with the middle of the air inlet channel 211 along the X direction, and the cross section of the air inlet channel 211 that is higher than the second heat conducting member 213 is the effective flow cross section.

In this specific embodiment, the cross-section of the through hole 212a is circular.

In this specific embodiment, the cross-section of the through hole 212a may be in the shape of a polygon, including but not limited to a quadrilateral, a hexagon, an octagon, and the like.

In the above aerosol generating device, the air inlet channel 211, the ventilation cavity 215, the through hole 212a and the accommodating cavity 214 together form an airflow channel. The arrangement of the first heat conducting member 212 and the second heat conducting member 213 increases the heat exchange area in the airflow channel, thereby improving the heat exchange efficiency.

In addition, in the process of flowing into and out of the ventilation cavity 215, the flow direction of the air changes, which is conducive to the formation of turbulence in the ventilation cavity 215. On the one hand, the air in direct contact with the base 210, the first heat conductor 212 and the second heat conductor 213 is constantly changing, has a sufficiently high temperature difference, and has a higher conduction heat exchange intensity, which can improve the heat exchange efficiency. On the other hand, the convective heat exchange intensity during turbulence is stronger than that during laminar flow, so the heat exchange efficiency inside the air is higher.

Optionally, the cross-sectional area of the air inlet passage 211 is greater than the cross-sectional area of the through hole 212 a.

Since the cross-sectional area of the through hole 212a is smaller, the resistance of the air flowing in the entire air flow channel is increased, so the air flowing into the ventilation cavity 215 can only pass through the through hole 212a slowly. On this basis, the air can absorb more heat in the ventilation cavity 215 and be heated to a higher temperature. When the air enters the receiving cavity 214, it can more quickly irradiate the aerosol generating product. Heat up.

4 and 5 again, optionally, a heat conducting portion 213a is provided on a side of the second heat conducting member 213 facing the first heat conducting member 212. The number of the heat conducting portion 213a can be one or more.

The heat conducting portion 213 a protrudes from the surface of the second heat conducting member 213 , which can not only increase the heat exchange area between the second heat conducting member 213 and the air, but also disturb the air entering the ventilation cavity 215 to enhance the turbulence in the ventilation cavity 215 .

Specifically, the heating element 220 is disposed on the outer side wall of the base 210 , and an anti-corrosion protection layer is disposed on the surface of the heating element 220 .

In addition, the second heat conducting member 213 has a back side facing away from the first heat conducting member 212. The heating element 220 is distributed on the side of the back side facing the first heat conducting member 212, mainly heating the section where the ventilation cavity 215 is located on the base 210, which can reduce unnecessary energy loss.

Optionally, the heating element 220 consists of a first heating area 221 , a second heating area 222 and a third heating area 223 .

The first heating area 221 is flush with the first heat conducting member 212 , the second heating area 222 is flush with the second heat conducting member 213 , and the third heating area 223 connects the first heating area 221 and the second heating area 222 .

During heating, the heat generated by the first heating zone 221 can be transferred to the first heat conductor 212 more directly and efficiently, and the heat generated by the second heating zone 222 can be transferred to the second heat conductor 213 more directly and efficiently, further improving the heat exchange efficiency.

1 and 2 again, optionally, the aerosol generating device further comprises a fixing assembly 300 disposed in the device body 100. The fixing assembly 300 is located in the area of the base 120 facing the opening 111, and the heating element 200 is fixed to the housing 110 through the fixing assembly 300.

In addition, the fixing assembly 300 is formed with a receiving channel 301 for inserting the aerosol generating product. One end of the receiving channel 301 along the X direction is connected to the opening 111 on the housing 110, and the heating element 200 is exposed at the other end of the accommodating channel 301 along the X direction, and the accommodating cavity 214 on the heating element 200 is communicated with the opening 111 through the accommodating channel 301 .

Specifically, the fixing assembly 300 is composed of a first fixing member 310 , a second fixing member 320 and a third fixing member 330 , and the first fixing member 310 , the second fixing member 320 and the third fixing member 330 are sequentially connected along the X direction.

The first fixing member 310 is embedded and fixed to the base 120 . The third fixing member 330 is disposed between the second fixing member 320 and the housing 110 , serving as a connecting portion between the entire fixing assembly 300 and the housing 110 .

In addition, the base 210 of the heat generating element 200 is disposed between the first fixing member 310 and the second fixing member 320 .

In this embodiment, taking the angle shown in the figure as an example, the first fixing member 310 is sleeved on the base 210 from bottom to top. The side of the first fixing member 310 is provided with an air hole 311, and the air hole 311 is connected to the air inlet channel. The bottom of the first fixing member 310 is provided with a first limiting boss 312, and the first limiting boss 312 abuts against the bottom end of the base 210.

Correspondingly, the second fixing member 320 is sleeved on the base 210 from top to bottom. A second limiting boss 321 is disposed on the top of the second fixing member 320 , and the second limiting boss 321 abuts against the top end of the base 210 .

In addition, the first limiting boss 312 has a positioning portion 312a, and the bottom of the base 210 is correspondingly provided with a positioning groove 216 (see FIG. 7 ). When the first fixing member 310 is sleeved on the base 210 , the positioning portion 312a is inserted into the positioning groove 216 to position the base 210 .

Thus, the first fixing member 310 cooperates with the second fixing member 320 to achieve sufficient positioning and fixing of the base 210, and the first fixing member 310 and the second fixing member 320 that are separately arranged are easy to process and assemble.

Optionally, the aerosol generating device further comprises an isolation component 400 disposed in the device body 100. The isolation component 400 is disposed on the periphery of the heating element 200 to separate the heating element 200 and the heating element 200. The fixing assembly 300 is wrapped inside to prevent the heat generated by the heating element 200 from being transferred to the device body 100 .

In addition, a gap is left between the isolation assembly 400 and the housing 110, and the gap is connected to the air inlet 112. When in use, outside air flows into the gap between the isolation assembly 400 and the housing 110 through the air inlet 112, and flows in the opposite direction along the X direction until bypassing the isolation assembly 400.

Subsequently, the outside air first flows into the space between the isolation assembly 400 and the first fixing member 310 in the positive direction along the X direction, and then flows through the air holes 311 and the air inlet channel 211 in a direction perpendicular to the axial direction of the base 210 until entering the ventilation cavity 215 and being heated by the heating element 200.

Optionally, the heated air flows into the accommodating cavity 214 through the through hole 212a in the positive direction along the X direction, and then flows into the accommodating channel 301. In this process, the air is continuously heated, and then heats and bakes the aerosol generating product to generate aerosol or smoke.

Finally, the air entrains the aerosol or smoke and is discharged from the outlet 111 .

In this embodiment, a second sealing ring 331 is disposed on the third fixing member 330. The second sealing ring 331 abuts against the inner wall of the isolation assembly 400 to enhance the sealing performance of the connection between the third fixing member 330 and the isolation assembly 400.

In short, when the above-mentioned aerosol generating device is used, the air in the ventilation cavity 215 can more fully exchange heat with the first heat-conducting member 212, the second heat-conducting member 213 and the base 210, the heat exchange efficiency is improved, and the energy loss is reduced. The air can be effectively heated without increasing the power of the heating element 220, avoiding the base 210, the first heat-conducting member 212 and the second heat-conducting member 213 from being maintained at a high operating temperature for continuous operation, which is conducive to extending the service life of the base 210, the first heat-conducting member 212 and the second heat-conducting member 213, making the device less prone to damage and more stable.

Please refer to FIG. 7 and FIG. 8 together. In this embodiment, the air inlet channel 211 is located between the first heat conducting member 212 and the second heat conducting member 213 .

9 , in a specific implementation of this embodiment, a block 213b is provided on the side of the second heat conducting member 213 facing the first heat conducting member 212, and a slot 212b is correspondingly provided on the side of the first heat conducting member 212 facing the second heat conducting member 213. The block 213b is embedded in the slot 212b and fits against the inner wall of the base 210.

The heat of the base 210 can be transferred to the first heat conductor 212 and the second heat conductor 213 through the block 213b. The heat can also be transferred between the first heat conductor 212 and the second heat conductor 213 through the block 213b, so that the heat is evenly distributed on the first heat conductor 212 and the second heat conductor 213, which is also beneficial to improving the heat exchange efficiency.

In addition, at least two blocks 213 b are provided, and the number of the air inlet channels 211 is the same as the number of the blocks 213 b . The air inlet channels 211 and the blocks 213 b are alternately distributed along the circumference of the base 210 .

Optionally, the number of the air inlet channels 211 and the number of the blocks 213 b are both two.

In a specific implementation of this embodiment, the block 213b can also be set on the side of the first heat conductor 212 facing the second heat conductor 213, and the card groove 212b can be correspondingly set on the side of the second heat conductor 213 facing the first heat conductor 212, which can also play a role in evenly distributing heat on the first heat conductor 212 and the second heat conductor 213.

It should be noted that the heating element 220 used in each embodiment of the present disclosure includes but is not limited to being set in the form of a heating wire, a heating circuit, or other objects that generate heat after being energized. Among them, the setting of the heating circuit includes but is not limited to printing, spraying and the like. Moreover, the heating circuit can be set on the outside of the substrate 210, or on the inside of the substrate 210, or at other positions as needed. In addition, the heating body 200 in each embodiment of the present disclosure includes but is not limited to ceramic heating bodies, honeycomb ceramic heating bodies and other heating bodies with a heat-conducting function, or a heating body composed of other heating bodies, which has the advantages of excellent thermal conductivity and stable properties. Specifically, the first heat-conducting member 212, the second heat-conducting member 213 and the substrate 210 include but are not limited to ceramic heating bodies, honeycomb ceramic heating bodies and other heating bodies with a heat-conducting function, or other heating bodies. Combined heating element.

Please refer to FIG. 10 . In this embodiment, the heating element 200 of the present disclosure further includes a structural member 230 . The structural member 230 is disposed on one side of the first heat conducting member 212 or the second heat conducting member 213 .

Understandably, when the present disclosure is in use, an aerosol generating product or a cigarette is inserted into the device body 100 and is close to the heating element 200. In some cases, the aerosol generating product or the cigarette abuts against the substrate 210 of the present disclosure; in other cases, the aerosol generating product or the cigarette abuts against the first heat conducting member 212 or the second heat conducting member 213. Regardless of which case, the heating condition of the aerosol generating product or the cigarette is related to the relative position of the aerosol generating product or the cigarette and the heating element 220 disposed on the substrate 210. The structural member 230 is configured to adjust the relative position between the aerosol generating product or the cigarette and the heating element 200.

It is understandable that the structural member 230 can be arranged on the substrate 210, and the structural member 230 can also be arranged on the first heat conductive member 212 or the second heat conductive member 213. The substrate 210 includes but is not limited to a ring shape, a column shape or a block shape and a combination of these shapes.

In this embodiment, when the structural member 230 is disposed inside the substrate 210, that is, located in the cavity of the substrate 210, and the structural member 230 is annular, the bottom of the structural member 230 abuts against the first heat-conducting member 212 or the second heat-conducting member 213, and the outer side of the structural member 230 abuts against the inner wall of the cavity of the substrate 210. When the length of the structural member 230 along the X direction is less than the distance from the first heat-conducting member 212 or the second heat-conducting member 213 to the cavity opening position of the substrate 210, when the aerosol generating product or cigarette abuts against the structural member 230, it can be heated by both bottom air heating and substrate 210 circumferential heating.

It is understandable that the device body 100 in the embodiment of the present disclosure is also provided with a power supply, a control panel, a switch button, an indicator light, a charging and data interface, etc.

The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present disclosure. It should be pointed out that, for ordinary technicians in this field, other methods can be made without departing from the concept of the present disclosure. There are several variations and improvements, all of which fall within the scope of protection of the present disclosure.

Industrial Applicability

In the above-mentioned aerosol generating device, the air inlet channel is connected to the ventilation cavity, and the ventilation cavity is connected to the accommodating cavity through the through hole on the first heat-conducting member to form an airflow channel. The heating element arranged on the substrate heats the substrate, and the substrate transfers the heat to the first heat-conducting member and the second heat-conducting member. The air flowing into the ventilation cavity through the air inlet channel on the side of the substrate further flows into the through hole, and its flow direction changes, forming turbulence in the ventilation cavity, so that it can more fully exchange heat with the first heat-conducting member, the second heat-conducting member and the substrate, and the heat exchange efficiency is improved. The air can be effectively heated without increasing the power of the heating element, avoiding the substrate, the first heat-conducting member and the second heat-conducting member from being maintained at a higher operating temperature for continuous operation, which is beneficial to prolonging the service life of the substrate, the first heat-conducting member and the second heat-conducting member, making the equipment less prone to damage and more stable.

Claims (16)

An aerosol generating device, comprising a device body into which an aerosol generating product can be inserted, and also comprising a heating element disposed in the device body and configured to heat the aerosol generating product, the heating element comprising a substrate and a heating element, the heating element being disposed on the substrate, characterized in that a cavity is defined inside the substrate, and a first heat conducting element and a second heat conducting element are disposed in the substrate; The first heat-conducting member and the second heat-conducting member separate the cavity into a receiving cavity and a ventilation cavity, the receiving cavity is located on a side of the first heat-conducting member facing away from the second heat-conducting member, and the ventilation cavity is located between the first heat-conducting member and the second heat-conducting member; An air inlet channel is provided on the side of the base, and the air inlet channel is communicated with the ventilation cavity. A through hole is provided on the first heat conducting member, and the through hole is communicated with the accommodating cavity and the ventilation cavity respectively. The aerosol generating device according to claim 1, characterized in that a heat conducting portion is provided on a side of the second heat conducting member facing the first heat conducting member. The aerosol generating device according to any one of claims 1-2 is characterized in that the first heat-conducting member and the second heat-conducting member are arranged along the central axis direction of the substrate. The aerosol generating device according to any one of claims 1 to 3 is characterized in that a card block is provided on the second heat conducting member, a card slot is provided on the first heat conducting member, and the card block can be embedded in the card slot. The aerosol generating device according to any one of claims 1 to 4 is characterized in that the heating element further comprises a structural member, and the structural member is arranged on one side of the first heat conductive member or the second heat conductive member. The aerosol generating device according to any one of claims 1 to 5, characterized in that the aerosol generating device further comprises a fixing assembly arranged in the device body, the fixing assembly forming a receiving channel for inserting the aerosol generating product, the device body comprising a housing, The shell is provided with an opening, and the accommodating channel is connected with the opening. The aerosol generating device according to claim 6 is characterized in that the device body also includes a base, and the fixing assembly includes a first fixing member, and the first fixing member is embedded and fixed to the base. The aerosol generating device according to claim 7 is characterized in that the fixing assembly further includes a second fixing member, and the substrate is arranged between the first fixing member and the second fixing member. The aerosol generating device according to claim 8 is characterized in that the fixing assembly further includes a third fixing member, and the third fixing member is arranged between the second fixing member and the shell. The aerosol generating device according to claims 8-9 is characterized in that the second fixing member is sleeved on the base from top to bottom, and a second limiting boss is provided on the top of the second fixing member, and the second limiting boss abuts against the top end of the base. The aerosol generating device according to any one of claims 7 to 10 is characterized in that an air hole is provided on the first fixing member, and the air hole is connected to the air inlet channel. The aerosol generating device according to any one of claims 1 to 11 is characterized in that the aerosol generating device also includes an isolation component arranged in the device body, and the isolation component is arranged on the periphery of the heating element. The aerosol generating device according to any one of claims 1 to 12 is characterized in that the first heat-conducting member and the second heat-conducting member are both arranged in a plate shape, the central axis of the first heat-conducting member and the second heat-conducting member coincides with the central axis of the substrate, and the through hole is arranged along the central axis direction of the substrate. The aerosol generating device according to any one of claims 1 to 13, characterized in that the cross-sectional area of the air inlet channel is larger than the cross-sectional area of the through hole. The aerosol generating device according to any one of claims 1 to 14 is characterized in that the substrate is vertically arranged, the first heat conducting member is located above the second heat conducting member, and the air inlet channel is opened at the bottom of the side wall of the substrate and connected to the bottom end surface of the substrate. The aerosol generating device according to any one of claims 1 to 15 is characterized in that the second heat-conducting member has a back side facing away from the first heat-conducting member, and the heating element is distributed on a side of the back side facing the first heat-conducting member, mainly heating the section of the substrate where the ventilation cavity is located.