WO2022027801A1

WO2022027801A1 - Heating module and smoke generating device

Info

Publication number: WO2022027801A1
Application number: PCT/CN2020/115971
Authority: WO
Inventors: 晏华斌; 黄颖杰; 杞瑞
Original assignee: 惠州市沛格斯科技有限公司
Priority date: 2020-08-03
Filing date: 2020-09-17
Publication date: 2022-02-10
Also published as: CN111838773A

Abstract

A heating module and a smoke generating device, the heating module comprising a heating assembly (30), the heating assembly comprising a heating body (31) and a heat conductor (32). The heat conductor comprises a main body part (321) and a plurality of extension parts (322) disposed at intervals on an outer surface of the main body part. A receiving space (321a) is provided in the main body part, and the heating body is provided within the receiving space. An air passage (322a) is formed between adjacent extension parts, and the air passages extend from one end of the heat conductor to the other end of the heat conductor.

Description

Heating module and smoking device

technical field

The present application relates to the field of heat-not-burn smoking articles, in particular to a heating module and a smoking device.

Background technique

In the current heating device of electronic cigarette products, the thermal conductor is the core component in the heating device that completes heat exchange and heats the air. When the heat released by the heating body such as the resistance heating wire is conducted to the heat conducting body in the way of heat conduction, the heat in the heat conducting body is conducted to the air in the air passage in the way of convective heat exchange with the air to complete the work of heating the air. When the user has a smoking action, the heated air enters the inside of the cigarette and starts to bake the cigarette, atomizing the cigarette to generate smoke, and releasing nicotine for the smoker to use.

technical problem

However, in the prior art, the thermal conduction efficiency of the thermal conductor is generally low, and therefore, how to improve the thermal conduction efficiency of the thermal conductor has become an urgent technical problem to be solved.

technical solutions

The present application provides a heating module and a smoking device to solve the technical problem of low heat conduction efficiency of the thermal conductor in the existing heating device.

An embodiment of the present application provides a heating module for a smoking device, which includes a heating assembly, and the heating assembly includes:

heat generating body; and

a thermal conductor, the thermal conductor comprises a main body part and a plurality of extension parts arranged at intervals along the outer surface of the main body part, an accommodation space is arranged in the main body part, and the heating body is arranged in the accommodation space, An air channel is formed between the adjacent extension parts, and the air channel extends from one end of the thermal conductor to the other end of the thermal conductor;

The thermal conductivity of the thermal conductor is greater than or equal to 80 W/(m·K), and the specific heat capacity of the thermal conductor is greater than or equal to 200 J/(kg·K).

The embodiment of the present application also provides a heating module for a smoking device, which includes a heating assembly, and the heating assembly includes:

heat generating body; and

a thermal conductor, the thermal conductor comprises a main body part and a plurality of extension parts arranged at intervals along the outer surface of the main body part, an accommodation space is arranged in the main body part, and the heating body is arranged in the accommodation space, An air channel is formed between the adjacent extending parts, and the air channel extends from one end of the thermal conductor to the other end of the thermal conductor.

In the heating module according to the embodiment of the present application, the thickness of the extension portion gradually decreases in a direction perpendicular to the central axis of the main body portion along a direction away from the main body portion toward the main body portion.

In the heating module according to the embodiment of the present application, a surface of the extension portion facing the air passage includes a curved surface.

In the heating module according to the embodiment of the present application, the thermal conductor further includes a socket portion, and the socket portion is connected to an end of the extension portion away from the main body portion.

In the heating module according to the embodiment of the present application, a plurality of openings are provided on the sleeve portion, and the openings correspond to the air passages one-to-one and communicate with the air passages.

In the heating module according to the embodiment of the present application, the sum of the surface areas of the surfaces of the plurality of extending portions facing the air passage is greater than or equal to 200 mm ² .

In the heating module according to the embodiment of the present application, the heat conducting body is a columnar structure, and the height of the heat conducting body is between 7 mm and 13 mm.

In the heating module according to the embodiment of the present application, the thermal conductivity of the thermal conductor is greater than or equal to 80 W/(m·K).

In the heating module according to the embodiment of the present application, the specific heat capacity of the thermal conductor is greater than or equal to 200 J/(kg·K).

In the heating module described in the embodiment of the present application, the material of the thermal conductor is metal, ceramic or a combination of the two.

In the heating module described in the embodiments of the present application, the material of the thermal conductor is one or a combination of aluminum, copper, iron, silver or gold.

In the heating module according to the embodiment of the present application, the heating assembly further includes an isolation layer, the isolation layer includes a first layer and a second layer, and the first layer is disposed on the main body portion The inner surface of the second layer is arranged on the outer surface of the extension.

In the heating module according to the embodiment of the present application, the material of the isolation layer includes metal oxide.

In the heating module according to the embodiment of the present application, the heating component further includes a potting glue, and the potting glue is filled between the heating body and the heat conducting body.

In the heating module described in the embodiment of the present application, the heating module further includes:

base;

a casing, the casing is disposed on the base, and a accommodating cavity is formed between the casing and the base, the heating component is located in the accommodating cavity, and a heat-insulating cavity is formed between the casing and the casing; and

a thermal insulation assembly, the thermal insulation component is arranged in the thermal insulation cavity, the thermal insulation component comprises an thermal insulation body and a heat reflector, and the thermal reflector is arranged between the thermal insulation body and the outer shell .

In the heating module according to the embodiment of the present application, the heat insulating body includes a porous heat insulating material, and the porous heat insulating material is filled between the outer shell and the thermal conductor;

The heat reflector is a heat reflector film or a surface-treated heat reflector.

In the heating module according to the embodiment of the present application, the heating module further includes a connecting piece and a cigarette cup sequentially arranged on one end of the heating assembly away from the base, the connecting piece and the cigarette cup are all located in the accommodating cavity;

The connecting piece includes a base and a plurality of connecting parts arranged at intervals around the outer periphery of the base, and the plurality of connecting parts are arranged on the inner periphery of the side of the base close to the cigarette cup.

In the heating module according to the embodiment of the present application, a limit groove is provided on a side of the base close to the thermal conductor, and an end of the thermal conductor abuts against the limit slot.

The embodiment of the present application also relates to a smoking device, which includes the heating module of the above embodiment.

beneficial effect

In the heating module and the smoking device of the present application, a plurality of extension parts arranged at intervals are arranged on the outer surface of the main body part of the heat conductor, a receiving space is arranged in the main body part, and the heating body is arranged in the receiving space and extends adjacently. An air channel is formed between the parts, and the air channel extends from one end of the heat-conducting body to the other end of the heat-conducting body. In the present application, a plurality of extension parts are arranged on the outer surface of the main body part, and air passages are formed between adjacent extension parts. When the outside air enters the air passages in the heat conductor, the heat in the heat conductor can fully interact with the air in the air passages. Convective heat exchange, so that the air in the air passage is fully heated, thereby improving the heat conduction efficiency of the heat conductor.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic structural diagram of a smoking device provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of an electrical connection structure of a smoking device provided by an embodiment of the present application;

3 is a schematic diagram of an explosion structure of a heating module according to an embodiment of the application;

4 is a partial cross-sectional schematic diagram of a heating module according to an embodiment of the application;

5 is a schematic structural diagram of a thermal conductor in a heating module according to an embodiment of the present application;

6(a) to 6(d) are schematic structural diagrams of the thermal conductors in the heating modules according to other embodiments of the present application;

7 is a top-view structural view of a thermal conductor, an isolation layer and a potting glue in a heating module according to an embodiment of the present application;

8 is a schematic structural diagram of a support member in a heating module according to an embodiment of the present application;

9 is a schematic structural diagram of a first thermal insulation component and a second thermal insulation component in a heating module according to an embodiment of the present application;

10(a) to 10(c) are schematic structural diagrams of the first heat insulation component and the second heat insulation component in the heating module according to other embodiments of the present application;

11 is a partial cross-sectional schematic diagram of a heating module according to another embodiment of the present application;

12 is a schematic structural diagram of a connector in a heating module according to an embodiment of the application;

FIGS. 13( a ) to 13 ( d ) are connection diagrams of the cigarette cup, the connector and the heating assembly in the heating module according to other embodiments of the present application.

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic structural diagram of a smoking device provided by an embodiment of the application; FIG. 2 is a schematic structural diagram of an electrical connection of the smoking device provided by an embodiment of the application.

Referring to FIG. 1 , the smoking device 1000 in the embodiment of the present application includes six major components: an upper cover, a bottom case, a battery, a printed circuit board (PCB) board, a support frame, and a heating module 100 . When assembling, install the battery and PCB board on the support frame, then install the support frame into the bottom case, then install the heating module 300 on the support frame, and finally assemble the upper cover, and the whole machine is assembled.

Further, as shown in FIG. 2 , the smoking device 1000 includes a power module 100 , a driving module 200 and a heating module 300 . Wherein, the smoking device 1000 is a smoking auxiliary accessory for users to smoke smoking products. Specifically, the smoking product may be tobacco or cigarettes.

The power module 100 is electrically connected to the driving module 200 . The driving module 200 is electrically connected to the heating module 300 . The power module 100 is used to supply power to the driving module 200 and the heating module 300 . The driving module 200 drives the heating module 300 to work, and makes the heating module 300 heat the air entering the heating module 300 to bake the smoking products by the hot air, so that the smoking products are atomized into smoke for the user to smoke.

Please refer to Figure 3 to Figure 5. The heating module 300 provided in the embodiment of the present application includes a base 11 , a casing 12 , a support 20 , a heating assembly 30 , a connecting member 40 , a cigarette cup 50 , a first heat insulating assembly 60 and a second heat insulating assembly 70 .

The casing 12 is disposed on the base 11 , and a accommodating cavity M is formed between the casing 12 and the base 11 . The accommodating cavity M accommodates the supporting member 20 , the heating assembly 30 , the connecting member 40 and the cigarette cup 50 in sequence from bottom to top.

The support member 20 is fixed on the base 11 and is used for supporting the heating assembly 30 .

The heating element 30 is disposed on the support member 20 . The heating assembly 30 includes a heating body 31 and a heat conducting body 32 . The thermal conductor 32 includes a main body portion 321 and a plurality of extending portions 322 spaced along the outer surface of the main body portion 321 . A receiving space 321a is provided in the main body portion 321 . The heat generating body 31 is installed in the accommodating space 321a. An air passage 322 a is formed between adjacent extending portions 322 . The air passage 322 a extends from one end of the heat conductor 32 to the other end of the heat conductor 32 .

Specifically, in this embodiment, the air passage 322 a extends from the end of the heat conductor 32 close to the base 11 to the end of the heat conductor 32 away from the base 11 . In some embodiments, the extending direction of the airway 322a can also be set according to the actual situation, which is not repeated here.

The cigarette cup 50 is disposed at one end of the heating assembly 30 away from the support member 20 . Among them, the cigarette cup 50 is used for placing smoking products.

The connecting member 40 is disposed between the heating assembly 30 and the cigarette cup 50 , and the cigarette cup 50 is fixedly connected to the heating assembly 30 through the connecting member 40 .

In the heating module 300 of the present embodiment, a plurality of extension portions 322 are arranged at intervals on the outer surface of the main body portion 321 of the heat conductor 32 . The main body portion 321 is provided with a receiving space 321 a, and the heating element 31 is disposed in the receiving space 321 a. An air passage 322 a is formed between the adjacent extension parts 322 , and the air passage 322 a extends from one end of the heat conducting body 32 to the other end of the heat conducting body 32 . In the present application, a plurality of extension portions 322 are arranged on the outer surface of the main body portion 321, and air passages 322a are formed between adjacent extension portions 322. Convective heat exchange with the air in the air passage 322 a can be fully performed, so that the air in the air passage 322 a is sufficiently heated, thereby improving the heat conduction efficiency of the heat conductor 32 .

Please refer to Figure 4 and Figure 8 together. In the heating module 300 of this embodiment, the support member 20 is fixed on the base 11 . The support member 20 includes a bearing platform 21 , a support column 22 and a plurality of fixed parts 23 arranged at intervals.

The stage 21 is used to support the thermal conductor 32 . The support column 22 is fixed on the base 11 and connected to one end of the bearing platform 21 close to the base 11 . The plurality of fixing portions 23 are disposed on the outer periphery of one end of the bearing platform 21 away from the base 11 .

An accommodating space 23 a is formed between the plurality of fixing portions 23 . The end portion 32A of the thermal conductor 32 is disposed in the accommodating space 23a.

The plurality of fixing portions 23 are evenly and spaced apart along the circumferential direction of the bearing platform 21 . This arrangement can play a good role in fixing and limiting the thermal conductor 32, preventing the thermal conductor 32 from shifting during the collision with the outside world, so that the air heated by the thermal conductor 32 can be uniformly transmitted to the cigarette cup 50, and further It is beneficial to improve the smoking taste of smoking products.

The material of the support member 20 may include materials with high temperature resistance and low thermal conductivity such as zirconia, silicon dioxide or ceramics, so as to reduce conduction and heat conduction, so that the heat of the thermal conductor 32 will not be quickly transferred to the cigarette cup 50, thereby reducing the heat losses during conduction.

In addition, in this embodiment, by contacting the end portion 32A of the thermal conductor 32 with the support member 20 , on the premise that the support member 20 can better fix the thermal conductor 32 , the number of the thermal conductor 32 and the support member is minimized. The contact area of 20 reduces the heat conduction from the thermal conductor 32 to the support member 20, thereby further reducing the loss in the process of heat conduction.

In some embodiments, in order to further reduce the contact area between the thermal conductor 32 and the support member 20 , the height of the contact portion between the thermal conductor 32 and the support member 20 does not exceed one third of the height of the thermal conductor 32 .

Please refer to Figure 3 to Figure 7 together. In the heating module 300 of this embodiment, the heating component 30 includes a heating body 31 , a heat conducting body 32 , a first temperature sensing element 33 , an isolation layer 34 and a potting glue 35 .

The heat conductor 32 is fixed on the base 11 . The thermal conductor 32 includes a main body portion 321 and a plurality of extending portions 322 spaced along the outer surface of the main body portion 321 . An air channel 322 a is formed between every two adjacent extending portions 322 . The air passage 322 a extends from the end of the heat conductor 32 close to the base 11 to the end of the heat conductor 32 away from the base 11 .

In this embodiment, the vertical cross-sectional shape of the main body portion 321 is a square, and specifically, it may be a rectangle or a square. In some embodiments, the vertical cross-sectional shape of the main body portion 321 may also be other shapes, which will not be repeated here.

In this embodiment, as shown in FIG. 5 , the thickness of the extension portion 322 gradually decreases along the direction away from the main body portion 321 toward the main body portion 321 in the direction perpendicular to the central axis of the main body portion 321 .

It can be understood that, according to the calculation formula of the heat of the substance: Q=cmΔT, where c is the specific heat capacity of the substance (unit: J/(kg K )); m is the mass of the substance (unit: kg); ΔT is the The temperature change value (unit: K), specifically, ΔT is the temperature change value of the heat conductor 32 when the air passes through within a certain period of time; Q (unit: J) is the heat required to satisfy the temperature change of ΔT. When the conduction heat Q and the specific heat capacity c of the heat conductor 32 are constant, the larger the mass m of the heat conductor 32 is, the lower the temperature change value ΔT of the heat conductor 32 is.

Because the temperature change value ΔT of the thermal conductor 32 will affect factors such as the atomization effect of the cigarette and the smoking taste of the smoker. Specifically, the lower the temperature change value ΔT of the thermal conductor 32 is, the better the atomization effect of the cigarette and the smoking taste of the smoker are. Therefore, in the structural design of the thermal conductor 32, when the size of the thermal conductor 32 is constant, in order to meet the requirement of a lower temperature change value ΔT of the thermal conductor 32, the larger the mass of the thermal conductor 32, the better.

In this embodiment, when the size and shape of the main body portion 321 are constant, the thickness of the extension portion 322 is gradually increased from one end of the main body portion 321 to the outside, so that the mass of the thermal conductor 32 can be increased, so that the thickness of the thermal conductor 32 can be increased. When the conduction heat Q and the specific heat capacity c are constant, the temperature change value ΔT of the heat conductor 32 before and after the air is circulated for a certain period of time is reduced, which is beneficial to improve the atomization effect of the cigarette and the smoking taste.

In some embodiments, the thickness of the extension portion 322 remains unchanged in a direction perpendicular to the central axis of the main body portion 321 and in a direction away from the main body portion 321 toward the main body portion 321 , as shown in FIG. 6( a ).

Further, in this embodiment, the surface of the extension portion 322 facing the air passage 322a is a plane. In some embodiments, the surface of the extension portion 322 facing the air passage 322a may also be a curved surface, as shown in FIG. 6( b ). Under the condition that the size of the heat conductor 32 is constant, setting the surface of the extension portion 322 toward the air passage 322a as a curved surface can increase the surface area of the surface of the extension portion 322 facing the air passage 322a, so that the heat conductor 32 contacts the air in the air passage 322a. The area increases, thereby increasing the heat conduction area of the thermal conductor 32 , which is beneficial to improve the thermal conduction efficiency of the thermal conductor 32 .

Referring to FIG. 6( c ) and FIG. 6( d ), on the basis of the embodiment corresponding to FIG. 6( a ), in some embodiments, the thermal conductor 32 further includes a socket portion 323 . The socket portion 323 is connected to an end of the extension portion 322 away from the main body portion 321 . Specifically, in FIG. 6( c ), the socket portion 323 is a closed annular structure; in the embodiment shown in FIG. 6( d ), a plurality of openings 323 a are provided on the socket portion 323 . The openings 323a correspond to the air passages 322a one-to-one and communicate with the air passages 322a.

In one embodiment, the thermal conductivity of the thermal conductor 32 is greater than or equal to 80 W/((m·K)). After the heat generated by the heating body 31 is conducted to the heat conducting body 32, the heat conducting body 32 needs to quickly transfer the heat to the surface of the heat conducting body 32 so as to exchange heat with the air in the air passage 322a. When the thermal conductivity of the thermal conductor 32 is greater than or equal to 80W/(m·K), the thermal conductor 32 has good thermal conductivity, and the heat in the thermal conductor 32 can be quickly transferred to the surface, and the heat transfer to the air passages is carried out by convection heat transfer. The air in 322a is heated.

Specifically, the thermal conductivity of the thermal conductor 32 may be 80W/(m·K), 90W/((m·K)), 95W/((m·K)), 100W/((m·K)) or 110W /((m·K)), etc.

In one embodiment, the specific heat capacity of the thermal conductor 32 is greater than or equal to 200 J/(kg·K).

According to the heat calculation formula: Q=cmΔT, it can be obtained that under the condition that the conduction heat Q and mass m of the heat conductor 32 remain unchanged, the larger the specific heat capacity c of the heat conductor 32, the temperature change of the heat conductor 32 when the air passes through within a certain period of time. The value ΔT is lower.

In order to reduce the temperature change value ΔT of the thermal conductor 32, when the heat conduction Q and the mass m of the thermal conductor 32 are constant, the specific heat capacity of the thermal conductor 32 can be made equal to or greater than 200 J/(kg·K), so that the thermal conductivity of the thermal conductor 32 can be increased. The temperature change value ΔT is maintained within a small range, such as within 130° C., thereby ensuring the atomization effect of the cigarette and the taste of smoking to a certain extent. In addition, within the above-mentioned setting range, the thermal conductor 32 has a good ability to store heat and release thermal energy quickly, which is beneficial to improve the thermal storage performance and heat conduction efficiency of the thermal conductor 32 .

Specifically, the specific heat capacity of the thermal conductor 32 may be 200 J/(kg·K), 300 J/(kg·K), 450 J/(kg·K), 600 J/(kg·K), or 850 J/(kg) ·K), etc., the specific heat capacity can be selected according to the material of the thermal conductor 32, which is not limited in this application.

Optionally, the material of the thermal conductor 32 is metal, ceramic or a combination of the two.

Specifically, when the material of the thermal conductor 32 is metal, the metal can be one or a combination of aluminum, copper, iron, silver or gold, and when the material of the thermal conductor 32 is a combination of the above metals , such as aluminum alloy, copper alloy or copper-aluminum alloy; when the material of the thermal conductor 32 is ceramic, it can be a sintered body of materials such as alumina or zirconia; when the material of the thermal conductor 32 is metal and ceramic When combined, for example, the material of the main body part 321 can be metal, and the material of the extension part 322 can be ceramic. Therefore, the heat conduction efficiency of the heat conductor 32 can be improved, so that the heat of the main body portion 321 can be quickly transferred to the extension portion 322 for heat exchange with the air in the air passage 322a between the extension portions 322, and further , the extension part 322 is made of ceramic material, which can avoid the metallic taste caused by the use of metal, thereby helping to improve the taste of smoking. In addition, the thermal conductor 32 can also be made of a composite material of metal and ceramics, for example, the main body portion 321 and the extension portion 322 are both composite materials of metal and ceramics, which will not be repeated here.

In this embodiment, the material of the thermal conductor 32 is metal. Since the metal has a high thermal conductivity, the heat in the thermal conductor 32 can be quickly conducted to the surface of the extension portion 322 to achieve heating of the air in the air passage 322a. , thereby increasing the thermal conduction rate of the thermal conductor 32 . Further, when the material of the thermal conductor 32 is aluminum, since aluminum has better ductility, it is beneficial to reduce the processing difficulty of the thermal conductor 32 to meet the requirements for the shape of the thermal conductor 32 .

In this embodiment, the heat conduction area of the thermal conductor 32 is greater than or equal to 200 mm ² .

In the process of atomizing the cigarettes by air heating, the air entering the air passage 322a of the thermal conductor 32 needs to exchange heat with the thermal conductor 32 in a short time to be heated to the temperature required for atomization of the cigarettes. When the size and thermal conductivity of the thermal conductor 32 are constant, by increasing the thermal conduction area of the thermal conductor 32 , the contact area between the thermal conductor 32 and the air can be increased, thereby improving the thermal conduction efficiency of the thermal conductor 32 .

For example, in this embodiment, the thermal conductor 32 is a columnar structure, and the height of the thermal conductor 32 is between 7 mm and 13 mm, such as 7 mm, 8 mm, 10 mm, 12 mm, or 13 mm. When the bottom surface of the thermal conductor 32 is circular, the diameter of the bottom surface of the thermal conductor 32 is between 4 mm and 10 mm, such as 4 mm, 5 mm, 6 mm, 8 mm or 9 mm, etc.; When the bottom surface is square, the side lengths of the bottom surface of the thermal conductor 32 are all less than or equal to 9 mm, such as 5 mm, 7 mm, 8 mm, or 9 mm. Within the above-mentioned size range, by setting the thermal conduction area of the thermal conductor 32 to 200 mm ² or more, the thermal conduction efficiency of the thermal conductor 32 can be improved without changing the thermal conductivity of the thermal conductor 32 .

It should be noted that, in an embodiment of the present application, since the outer side of the thermal conductor 32 needs to be provided with a heat insulating material, the outer side of the thermal conductor 32 is hardly in contact with the air. Therefore, in the present application, the thermal conduction area of the thermal conductor 32 extends to The sum of the surface areas of the surface of the portion 322 facing the airway 322a is described as an example, but it should not be understood as a limitation of the present application.

Specifically, in the thermal conductor 32 of the embodiment of the present application, the sum of the surface areas of the surfaces of the plurality of extending portions 322 facing the air passage 322a is greater than or equal to 200 mm ² . Specifically, the sum of the surface areas may be 200 mm ² , 400 mm ² , 550 mm ² , 700 mm ² or 800 mm ² and the like.

When the thermal conductivity of the thermal conductor 32 is constant, in order to ensure that the thermal conductor 32 is in full contact with the air in the air passage 322a, preferably, in this embodiment, the sum of the surface areas is between 450mm ² ~700mm ² , within this range, the thermal conduction efficiency of the thermal conductor 32 is significantly improved.

Please continue to refer to Figure 4 and Figure 5. The accommodating space 321 a is provided on one end of the main body portion 321 facing the base 11 . The heating body 31 is electrically connected to the driving module 200 .

Specifically, the heating body 31 may be a heating resistance wire or a heating sheet.

The first temperature sensing element 33 is disposed on the thermal conductor 32 and is used to sense the temperature of the thermal conductor 32 . The first temperature sensing element 33 is electrically connected to the driving module 200 . Specifically, the first temperature sensing element 33 may be attached to the outer wall of the thermal conductor 32 so as to accurately sense the temperature of the thermal conductor 32 .

Optionally, the first temperature sensing element 33 may be a thermocouple, or other devices for sensing temperature.

In the present embodiment, the heating module 300 monitors the real-time temperature of the heat conductor 32 through the first temperature sensing element 33, and compares the real-time temperature with the target temperature set in the driving module 200. In addition, in combination with the use of the smoking device state, such as in the preheating stage, the suction stage, etc., and then control the operation of the heating assembly 30 through the driving module 200, so as to control the temperature of the heat conductor 32, thereby ensuring the consistency of the temperature of the heat conductor 32 to bake the smoking products during the working process It can ensure the atomization effect of smoking products and the release of nicotine, so as to ensure the comfortable taste of smoking products by controlling the temperature of hot air.

In the embodiment of the present application, the heating module 300 further includes a second temperature sensing element 51 . The second temperature sensing element 51 is installed on the base 11 and disposed outside the cigarette cup 50 for detecting the temperature of the cigarette cup 50 . Wherein, in order to accurately monitor the real-time temperature of the cigarette cup 50 , the second temperature sensing element 51 can be closely attached to the outer wall of the cigarette cup 50 .

In some embodiments, a resistance heating wire whose resistance value varies with temperature can also be used, that is, a temperature coefficient of resistance (temperature coefficient of resistance) can be used. The temperature control method of coefficient of resistance, TCR) will not be repeated here.

Please continue to refer to FIG. 7 , in the heating element 30 of this embodiment, the isolation layer 34 includes a first layer 341 and a second layer 342 . The first layer 341 is provided on the inner surface of the main body part 321 . The second layer 342 is disposed on the outer surface of the extension portion 322 .

It can be understood that, if the material of the heat conductor 32 is metal, when the smoker performs a smoking action, the heat conductor 32 will emit a metallic smell, and when the air flows into the cigarette cup 50 through the air passage 322a in the heat conductor 32, The metallic smell emitted by the thermal conductor 32 will be brought into the cigarette cup 50, thereby reducing the smoking taste of the cigarette.

In this embodiment, by disposing the first layer 341 on the outer surface of the extension portion 322, the thermal conductor 32 is isolated from the air, which is beneficial to reduce the probability of occurrence of metallic smell. In addition, the above arrangement can also prevent the metal on the surface of the thermal conductor 32 from being oxidized by contacting the air, or reacting at a high temperature to generate foreign matter or other harmful substances, thereby improving the taste of inhalation, and reducing the probability of environmental pollution and the impact on the environment. Risk of harm to the health of smokers.

Further, since the heating body 31 is placed in the receiving space 321a in the heat conducting body 32, by arranging the first layer 341 on the inner surface of the main body portion 321, electrical contact between the heating body 31 and the heat conducting body 32 can be prevented, Therefore, it is beneficial to reduce the risk of short circuit of the heating element 31 .

Specifically, the first layer 341 and the second layer 342 can be prepared by the same process. Specifically, it can be formed by performing surface treatment on the heat conductor 32, for example, anodizing treatment can be performed on the surface of the heat conductor 32 to form a dense oxide film, such as an aluminum oxide film layer or a zirconia film layer; A ceramic material such as alumina or zirconia can also be sprayed on the surface of the thermal conductor 32; or, the surface of the thermal conductor 32 can also be passivated to prevent the thermal conductor 32 from contacting with air, and so on.

It should be noted that when the surface of the thermal conductor 32 is subjected to insulation treatment, the isolation layer 34 formed at this time covers all exposed surfaces of the thermal conductor 32, that is, the isolation layer 34 includes the first layer 341 and the second layer In addition to the layer 342 , it also includes a portion (not marked in the figure) covering the outer surface of the main body portion 321 , which will not be repeated here.

In this embodiment, the materials of the first layer 341 and the second layer 342 are the same, and both include metal oxides. The metal oxide can be aluminum oxide, zirconium oxide, or other insulating materials.

In some embodiments, the materials of the first layer 341 and the second layer 342 can also be set to be different, as long as the first layer 341 has the function of insulating and the second layer 342 has the function of isolating the air, both are within the scope of protection of this application.

Please continue to refer to FIG. 4 and FIG. 7 , in this embodiment, the potting glue 35 is filled between the heating body 31 and the heat conducting body 32 . Specifically, the potting glue 35 is filled in the accommodating space 321 a and covers the heating element 31 .

In this embodiment, the potting glue 35 may be an inorganic glue of ceramic type or glass enamel type. The potting compound 35 is filled by a vacuum defoaming process or a vibration method, so as to avoid the heat transfer effect of the thermal conductor 32 being affected by the generation of air bubbles in the potting compound 35 . In addition, the setting of the potting glue 35 can also prevent the air or other foreign objects from directly contacting the heating body 31, thereby avoiding the effect of the odor of the heating body 31 under high temperature, which affects the taste of smoking.

It should be noted that the top-view structures of the thermal conductor 32 , the isolation layer 34 and the potting glue 35 shown in FIG. 7 are only schematic and are used to facilitate the description of the embodiments of the present application, but should not be construed as limitations of the present application.

Please refer to FIGS. 3 to 4 , and FIGS. 9 to 11 , in the heating module 300 of the present embodiment, a first insulating cavity N1 is formed between the casing 10 and the heating element 30 . A second heat insulating cavity N2 is formed between the cigarette cup 50 and the casing 12 . The second insulating chamber N2 communicates with the first insulating chamber N1.

The first heat insulating component 60 is disposed in the first heat insulating cavity N1. The first heat insulating assembly 60 includes a first heat insulating body 61 and a first heat reflector 62 . The first heat reflector 62 is disposed between the first heat insulator 61 and the housing 12 .

The second heat insulating assembly 70 is disposed in the second heat insulating cavity N2. The second heat insulating assembly 70 includes a second heat insulating body 71 and a second heat reflector 72 . The second heat reflector 72 is provided between the second heat insulator 71 and the housing 12 .

In this embodiment, the first heat insulating assembly 60 and the second heat insulating assembly 70 are integrally formed. Specifically, the first heat insulator 61 and the second heat insulator 71 are integrally formed, and the first heat reflector 62 and the second heat reflector 72 are integrally formed.

In some embodiments, the first heat insulation assembly 60 and the second heat insulation assembly 70 may also be separate structures. The first heat insulator 61 and the second heat insulator 71 may have separate structures, and the first heat reflector 62 and the second heat reflector 72 are also separate structures, which will not be repeated here.

In the heating module 300 of the present embodiment, a first heat insulating component 60 is provided in the first heat insulating cavity N1 formed between the heating component 30 and the housing 12 , and the first heat insulating component 60 includes a first heat insulating body 61 and a first heat insulating body 61 . The heat reflector 62 , the first heat reflector 62 is located between the first heat insulator 61 and the housing 12 . In this embodiment, the heat loss of the heating assembly 30 is reduced by arranging the first insulator 61 to improve the working efficiency of the heating assembly 30, and the first heat reflector 62 is arranged outside the first insulator 61. A heat reflector 62 can re-reflect the radiant heat energy passing through the first heat insulator 61 into the first heat insulator 61, and then through the cooperation of the first heat insulator 61 and the first heat reflector 62, the heat can be greatly improved. Heat loss from the heating assembly 30 is reduced. In addition, the above arrangement reduces the temperature of the casing 12 and improves the comfort of the smoking device when using it.

Further, in this embodiment, a second heat insulating assembly 70 is provided in the second heat insulating cavity N2 formed between the cigarette cup 50 and the outer casing 12 , and the second heat insulating assembly 70 includes a second heat insulating body 71 and a second heat insulating body. The reflector 72 and the second heat reflector 72 are located between the second heat insulator 71 and the housing 12 . Therefore, through the combined use of the second heat insulator 71 and the second heat reflector 72 , the heat of the cigarette cup 50 is reduced Loss, so that the smoking products in the smoking cup 50 can be fully heated by the hot air entering the smoking cup 50, which is beneficial to improve the atomization efficiency of the smoking products, so that the smoker can smoke the smoking products in time.

Please continue to refer to Figure 3, Figure 4 and Figure 9. In the heating module 300 of this embodiment, the first heat insulating body 61 includes a porous heat insulating material. Porous insulating material is filled between the housing 12 and the heating element 30 . Specifically, the porous heat insulating material covers the outer peripheral sides of the thermal conductor 32 and the cigarette cup 50 .

Since the temperature of the thermal conductor 32 during operation can reach up to 400° C., the thermal insulation measures for the thermal conductor 32 are particularly important. In this embodiment, by covering the outer peripheral side of the thermal conductor 32 with the porous heat insulating material, the heat generated by the thermal conductor 32 is not easily conducted and diffused outwards, so that the heat generated by the thermal conductor 32 can be used to the maximum extent to heat the air. The hot air is used to better atomize the smoking products in the smoking cup 50, so as to improve the smoking taste.

Optionally, the porous heat insulating material may be glass fiber, aerogel or heat insulating cotton. Since the porous material itself contains voids, the thermal conductivity of the air or inert gas in the voids is low, so the heat loss through thermal conduction can be effectively reduced. Of course, the first heat insulating body 61 may also include other heat insulating materials, which are not limited in this application.

In this embodiment, the porous heat insulating material is glass fiber. Because glass fiber has good heat resistance, low thermal conductivity and good flame retardancy, and glass fiber is non-toxic, harmless, and has no peculiar smell at high temperature, glass fiber is selected as the thermal insulation material. While achieving better heat insulation effect, it does not pollute the environment and does not affect the taste of smoking.

Further, since the temperature of the cigarette cup 50 will affect the temperature of the casing 12 , in this embodiment, by wrapping the porous heat insulating material on the outer peripheral side of the cigarette cup 50 , on the one hand, the heat loss in the cigarette cup 50 is reduced, and the heat loss in the cigarette cup 50 can be reduced. The hot air in the smoking cup better heats the smoking article; on the other hand, the temperature of the casing 12 is lowered, thereby ensuring a comfortable hand feeling when the smoking device is used. In this embodiment, the first heat reflector 62 is a heat reflector film. Specifically, the heat reflective film can be a metal sheet, and the material of the metal sheet can include metals with heat reflective properties such as aluminum, gold, silver, nickel, etc.; or, the above heat reflective film can also be polyester coated with a metal material. , polyimide film and other film materials that can reflect radiant heat energy, and the material of the heat reflective film is not specifically limited in this embodiment.

It should be noted that, in this embodiment, only the heat reflective film is a metal sheet as an example for description, but it is not limited to this.

Specifically, in this embodiment, the above-mentioned metal sheet is an aluminum foil. Specifically, the aluminum foil is an aluminum foil coil. The aluminum foil coil is wrapped around the outer peripheral side of the porous heat insulating material.

The aluminum foil has good ductility, and its own thermal resistance is small, and the absorption rate of radiant heat energy is low. In addition, because the surface of the aluminum foil is smooth, 80% to 95% of the heat energy can be reflected to the first heat insulator 61 . Therefore, in this embodiment, the combined use of the porous heat insulating material and the aluminum foil can greatly reduce the heat loss in the thermal conductor 32 , thereby further improving the working efficiency of the thermal conductor 32 . In addition, the above arrangement further reduces the heat loss in the cigarette cup 50, thereby further improving the comfort of the smoking device in use.

In some embodiments, the first heat reflector 62 may also be a heat reflector formed by surface treatment. The heat-reflecting structure coats the outer peripheral side of the porous heat insulating material. Specifically, a heat reflection part with a heat reflection effect can be formed by physical or chemical methods, for example, by polishing the surface of the heat reflection part to be formed, the surface of the heat emission part is made smooth, so as to reflect the radiant heat energy; or , a physical vapor deposition process, chemical vapor deposition process or electroplating process can also be used to form a layer of film with reflective radiant heat energy on the surface of the heat reflection part to be formed, such as aluminum, silver, copper and other metal films, or poly Non-metallic films such as ester or polyimide, etc. It should be noted that the present application does not specifically limit the material of the heat reflecting portion to be formed, as long as the heat reflecting portion obtained by surface treatment has the effect of reflecting radiant heat energy, it is within the protection scope of the present application.

In this embodiment, since the end portion 32A of the thermal conductor 32 is in contact with the fixed portion 23 in the support member 20 , in order to prevent the heat in the thermal conductor 32 from being transferred to the bearing platform 21 along the fixed portion 23 , the first spacer The heat body 61 is also disposed between the housing 12 and the support member 20 , so that the heat loss in the heat conductor 32 can be further reduced.

Referring to FIG. 10( a ), the difference from the embodiment corresponding to FIG. 9 is that, in some embodiments, the first heat insulating body 61 is a heat shield. The heat shield is sleeved on the outer peripheral sides of the thermal conductor 32 and the cigarette cup 50 . When the first heat reflection body is a heat reflection film, the heat reflection film is attached to the outer peripheral wall of the heat shield. Wherein, the material of the heat shield may include glass fiber, aerogel, etc., which will not be repeated here.

Please refer to Figure 10(b) and Figure 10(c) together. On the basis of the embodiments corresponding to FIGS. 9 and 10( a ), in some embodiments, the heating module 300 further includes a third heat insulator 80 , as shown in FIGS. 10( b ) and 10( c ), respectively. shown. The third heat insulator 80 is sleeved on the outer peripheral sides of the first heat insulation assembly 60 and the second heat insulation assembly 70 . Wherein, the third insulator 80 may be a vacuum tube. Since the vacuum tube can further heat insulation, this arrangement can further reduce the temperature of the casing 12, thereby further improving the comfort when the smoking device is in use. Specifically, in experimental research, it is found that the temperature of the outer casing 12 can be controlled below 40° C. through the arrangement of the vacuum tube.

It should be noted that, in the above embodiments, the second heat insulating assembly 70 and the first heat insulating assembly 60 are integrally formed as an example for description, and the structure and material of the second heat insulating body 71 may refer to the first heat insulating body 71 The description of the heat insulator 61 and the structure and material of the second heat reflector 72 can be referred to the description of the first heat reflector 62 , which will not be repeated here.

Please continue to refer to FIG. 11 , in some embodiments, the first insulating cavity N1 is located between the housing 12 and the heating element 30 and between the base 11 and the heating element 30 , in other words, the first insulating element 60 is disposed in the housing 12 and the heating assembly 30 and between the base 11 and the heating assembly 30 .

Specifically, the first insulating cavity N1 includes a first sub-insulating cavity n1 and a second sub-insulating cavity n2. The first sub-insulation cavity n1 is located between the housing 12 and the heat conductor 32 . The second sub-insulation cavity n2 is located between the support member 20 and the heat conductor 32 . Wherein, the first sub-insulation cavity n1 is communicated with the second sub-insulation cavity n2.

The first heat insulating assembly 60 includes a heat insulating material 61 and an aluminum foil 62 . The heat insulating material 61 is filled in the first sub-insulation cavity n1 and the second sub-insulation cavity n2. The heat insulating material 61 is a porous heat insulating material. The aluminum foil 62 is wrapped around the portion of the heat insulating material 61 located in the first sub-heat insulating cavity n1.

The above arrangement can simultaneously reduce the probability that the heat of the heat conductor 32 is transferred to the casing 12 and the base 11, that is, reduce the heat loss at the side and bottom of the heat conductor 32, thereby improving the working efficiency of the heating assembly 30 to the greatest extent. The air inside the heating assembly 30 can be sufficiently heated. In addition, in other embodiments, the first heat insulating cavity N1 may also be located only between the base 11 and the heating assembly 30 . The first heat insulation component 60 is disposed in the first heat insulation cavity N1 , in other words, the first heat insulation component 60 is only disposed between the base 11 and the heating component 30 , and details are not repeated here.

Please refer to FIG. 3 , FIG. 4 and FIG. 12 together. In this embodiment, the connecting member 40 includes a base 41 and a plurality of first connecting portions 42 spaced around the periphery of the base 41 . The plurality of first connecting parts 42 are disposed on the inner periphery of one end of the base 41 close to the cigarette cup 50 .

The plurality of first connecting portions 42 are evenly and spaced apart along the circumferential direction of the base 41 . The first connecting portion 42 extends into the inside of the cigarette cup 50 and is used for fixing the cigarette cup 50 on the base 41 . In addition, the first connecting portion 42 can also be used to adjust the distance between the smoking article in the cigarette cup 50 and the heating assembly 30, so as to control the heating temperature of the smoking article. The present application does not limit the shape of the first connecting portion 42 , which may be a prism or a column, and the present application also does not limit the manner in which the first connecting portion 42 fixes the cigarette cup 50 .

In this embodiment, the first connecting portion 42 includes a first surface 421 a parallel to the inner wall of the cigarette cup 50 , the first surface 421 a is in contact with the inner wall of the cigarette cup 50 , and the bottom wall of the cigarette cup 50 is in common with the upper surface of the base 41 . A stepped fixing portion is formed, and the cigarette cup 50 is fixed on the fixing portion. In other embodiments, for example, a convex block may be provided on the surface of the first connecting portion 42, a concave portion is formed in the cigarette cup 50, and the convex block on the surface of the first connecting portion 42 is fitted with the concave portion in the cigarette cup 50, In order to fix the first connecting part 42 and the cigarette cup 50 .

In this embodiment, the connecting member 40 is further provided with a limiting groove 43 , and the end of the thermal conductor 32 abuts in the limiting groove 43 to limit the position of the thermal conductor 32 . Wherein, the limiting groove 43 may be formed on the first connecting portion 42 . Specifically, the limiting groove 43 may be opened on the inward side of the first connecting portion 42 . The limiting groove 43 may also include a first limiting surface 431 and a second limiting surface 432 . The first limiting surface 431 and the second limiting surface 432 are substantially perpendicular. The first limiting surface 431 is parallel to and abuts with the top surface of the thermal conductor 32 , and the second limiting surface 432 is parallel to and abuts against the peripheral side surface of the thermal conductor 32 .

Please continue to refer to FIG. 13( a ), in some embodiments of the present application, the limiting groove 43 may also be formed on the base 41 . The first limiting surface 431 and the second limiting surface 432 are located on the side of the base 41 away from the first connecting portion 42 .

Referring to FIGS. 13( b ) to 13 ( d ), in other embodiments of the present application, a plurality of second connecting portions 44 are disposed on the side of the base 41 close to the thermal conductor 32 , as shown in FIG. 13( b ). Show. A plurality of second connection portions 44 are provided around the periphery of the base 41 . The present application does not limit the shape of the second connecting portion 44, which may be a prism or a column. The present application also does not limit the manner in which the second connection portion 44 fixes the heat conductor 32 . In this embodiment, the thermal conductor 32 is sandwiched between the plurality of second connecting portions 44 . In order to reduce the contact area between the second connection portion 44 and the heat conductor 32 , the length h1 of the contact portion of the second connection portion 44 and the heat conductor 32 does not exceed one third of the height h2 of the heat conductor 32 . A limiting groove 43 may also be provided on the connector 40. Please refer to Figures 13(b), 13(c) and 13(d) respectively. The end of the heat conductor 32 abuts in the limiting groove 43, and The groove 43 may be opened on one of the base 41 , the first connecting portion 42 and the second connecting portion 44 . The limiting groove 43 may also include a first limiting surface 431 and a second limiting surface 432 . The first limiting surface 431 and the second limiting surface 432 are substantially perpendicular. The first limiting surface 431 is parallel to and abuts with the top surface of the thermal conductor 32 , and the second limiting surface 432 is parallel to and abuts against the peripheral side surface of the thermal conductor 32 .

In addition, the material of the connecting member 40 may include materials with high temperature resistance and low thermal conductivity such as zirconia, silicon dioxide or ceramics. In this embodiment, by setting the connecting end of the connecting piece 40 into a column shape, the cigarette cup 50 and the connecting piece 40 have a smaller contact area, so that the cigarette cup 50 is in contact with the heat conductor 32 of the heating assembly 30 through the connecting piece 40, reducing the The heat of conduction and heat conduction is lost, so that the heat of conduction is not too much to affect the working efficiency of the heating element 30 .

Please continue to refer to Figure 4 and Figure 5. In the heating module 300 of this embodiment, the outer wall of the casing 12 is provided with an air inlet 12a. The air inlet 12a is disposed at one end of the housing 12 close to the base 11, and is used to communicate the outside air and the air passage 322a. A vent hole 62 a is provided on one end of the first heat reflector 62 close to the base 11 . The ventilation holes 62a correspond to and communicate with the air intake holes 12a.

In this embodiment, the heat released by the heat generating body 31 is transferred to the heat conducting body 32 by way of heat conduction, and then the heat of the heat conducting body 32 is conducted to the air in the air passage 322a by means of convection heat exchange with the air, so that the Do the job of heating the air.

Specifically, when the user has a suction action, the outside air entering from the air inlet 12a enters the air hole 62a, and then enters the air passage 322a through the gap inside the first heat insulator 61, and the heat conduction body 32 The heat is convection with the air in the airway 322a, so that this part of the air is heated, the heated air enters the cigarette cup 50, and starts to bake the smoking product, atomizing the smoking product to generate smoke, thereby releasing nicotine for smoking users use.

The assembling method of the heating module 300 in this embodiment is as follows: firstly, the cigarette cup 50 and the heat conductor 32 are fixedly connected through the connector 40, and the heat generating body 31 is placed in the receiving space 321a of the heat conductor 32; then, the assembled The above-mentioned structure is fixed on the support member 20, wherein the end 231 of the heat conductor 32 is fixedly connected with the support member 20; The whole is connected with the base 11 ; finally, the above assembled structure is put into the casing 12 . In this way, the assembly of the heating module 300 in the embodiment of the present application is completed.

Compared with the heating module in the prior art, in the heating module of the present embodiment, a plurality of extension parts are arranged at intervals on the outer surface of the main body part of the thermal conductor, a receiving space is arranged in the main body part, and the heating body is arranged on the outer surface of the heat conductor. In the accommodating space, an air channel is formed between adjacent extension parts, and the air channel extends from one end of the heat conductor to the other end of the heat conductor. In the present application, a plurality of extension parts are arranged on the outer surface of the main body part, and air passages are formed between adjacent extension parts. When the outside air enters the air passages in the heat conductor, the heat in the heat conductor can fully interact with the air in the air passages. Convective heat exchange, so that the air in the air passage is fully heated, thereby improving the heat conduction efficiency of the heat conductor.

The embodiments of the present application are described in detail above, and specific examples are used in this paper to illustrate the principles and implementations of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, will have changes in the specific implementation manner and application scope. In summary, the contents of this specification should not be construed as limitations on the present application.

Claims

A heating module for a smoking device, comprising a heating assembly, wherein the heating assembly includes:

heat generating body; and

a thermal conductor, the thermal conductor comprises a main body part and a plurality of extension parts arranged at intervals along the outer surface of the main body part, an accommodation space is arranged in the main body part, and the heating body is arranged in the accommodation space, An air channel is formed between the adjacent extension parts, and the air channel extends from one end of the thermal conductor to the other end of the thermal conductor;

The thermal conductivity of the thermal conductor is greater than or equal to 80 W/(m·K), and the specific heat capacity of the thermal conductor is greater than or equal to 200 J/(kg·K).
A heating module for a smoking device, comprising a heating assembly, wherein the heating assembly includes:

heat generating body; and

a thermal conductor, the thermal conductor comprises a main body part and a plurality of extension parts arranged at intervals along the outer surface of the main body part, an accommodation space is arranged in the main body part, and the heating body is arranged in the accommodation space, An air channel is formed between the adjacent extending parts, and the air channel extends from one end of the thermal conductor to the other end of the thermal conductor.
The heating module according to claim 2, wherein the thickness of the extension part gradually decreases along a direction away from the main body part toward the direction close to the main body part in a direction perpendicular to the central axis of the main body part.
The heating module according to claim 2, wherein a surface of the extending portion facing the air passage is a curved surface.
The heating module according to claim 2, wherein the heat conducting body further comprises a socket part, and the socket part is connected to an end of the extension part away from the main body part.
The heating module according to claim 5, wherein a plurality of openings are provided on the sleeve portion, and the openings correspond to the air passages one-to-one and communicate with the air passages.
The heating module according to claim 2, wherein the sum of the surface areas of the surfaces of the plurality of extending portions facing the air passage is greater than or equal to 200 mm 2 .
The heating module according to claim 7, wherein the thermal conductor is a columnar structure, and the height of the thermal conductor is between 7 between mm and 13 mm.
The heating module according to claim 2, wherein the thermal conductivity of the thermal conductor is greater than or equal to 80W/(m·K).
The heating module according to claim 2, wherein the specific heat capacity of the thermal conductor is greater than or equal to 200 J/(kg·K).
The heating module according to claim 2, wherein the material of the thermal conductor is metal, ceramic or a combination of both.
The heating module according to claim 11, wherein the material of the thermal conductor is one or a combination of aluminum, copper, iron, silver or gold.
The heating module according to claim 11, wherein the heating assembly further comprises an isolation layer, the isolation layer comprises a first layer and a second layer, the first layer is disposed on the main body part The inner surface of the second layer is arranged on the outer surface of the extension.
The heating module of claim 13, wherein the material of the isolation layer comprises metal oxide.
The heating module according to claim 2, wherein the heating component further comprises a potting glue, and the potting glue is filled between the heating body and the heat conducting body.
The heating module according to claim 2, wherein the heating module further comprises:

base;

a casing, the casing is disposed on the base, and a accommodating cavity is formed between the casing and the base, the heating component is located in the accommodating cavity, and a heat-insulating cavity is formed between the casing and the casing; and

a thermal insulation assembly, the thermal insulation component is arranged in the thermal insulation cavity, the thermal insulation component comprises an thermal insulation body and a heat reflector, and the thermal reflector is arranged between the thermal insulation body and the outer shell .
The heating module according to claim 16, wherein the heat insulating body comprises a porous heat insulating material, and the porous heat insulating material is filled between the housing and the thermal conductor;

The heat reflector is a heat reflector film or a surface-treated heat reflector.
The heating module according to claim 16, wherein the heating module further comprises a connecting piece and a cigarette cup sequentially arranged on one end of the heating assembly away from the base, the connecting piece and the cigarette cup are all located in the accommodating cavity;

The connecting piece includes a base and a plurality of connecting parts arranged at intervals around the outer periphery of the base, and the plurality of connecting parts are arranged on the inner periphery of the side of the base close to the cigarette cup.
The heating module according to claim 18, wherein a limiting groove is provided on a side of the base close to the thermal conductor, and an end of the thermal conductor abuts against the limiting slot.
A smoking device, characterized in that it comprises the heating module of claim 2 .