CN111772246A

CN111772246A - Heating module and smoke generating device

Info

Publication number: CN111772246A
Application number: CN202010768959.5A
Authority: CN
Inventors: 晏华斌; 黄颖杰; 崔弘明; 杞瑞
Original assignee: Huizhou Peggs Technology Co ltd
Current assignee: Huizhou Peggs Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2020-10-16
Also published as: WO2022027800A1

Abstract

The application provides a heating module and a smoke generating device, wherein the heating module comprises a shell, a heating assembly and a heat insulation assembly, the shell comprises a base and a shell, and the shell is arranged on the base and forms an accommodating cavity with the base; the heating assembly is arranged on the base and is positioned in the accommodating cavity, and a first heat insulation cavity is formed between the shell and the heating assembly; the first heat insulation assembly is arranged in the first heat insulation cavity and comprises a first heat insulator and a first heat reflector, and the first heat reflector is arranged between the first heat insulator and the shell. This application uses through the cooperation of first insulator and first heat reflector, greatly reduced heating element's heat loss.

Description

Heating module and smoke generating device

Technical Field

The application relates to the field of heating non-combustion smoking set, in particular to a heating module and a smoke generating device.

Background

In the current electronic cigarette product, a graphene sheet is generally attached to perform heat preservation and insulation treatment, and specifically, the heat of a heating body is prevented from being transferred to a shell by utilizing the performance of high transverse thermal resistance of the graphene sheet. However, when the heat loss of the heating element is prevented by attaching the graphene sheet to the outer wall of the outer casing of the electronic cigarette, the heat of the heating element is transmitted to other components along the direction of the outer casing due to the good longitudinal heat conduction effect of the graphene due to the small longitudinal heat resistance of the graphene, and thus, a large heat loss is generated.

Therefore, the prior art has defects and needs to be improved and developed.

Disclosure of Invention

The application provides a heating module and smoke generating device to solve the great technical problem of heating element calorific loss among the current smoke generating device.

The embodiment of the application provides a heating module for smoke generating device, the heating module includes:

the shell comprises a base and a shell, and the shell is arranged on the base and forms an accommodating cavity with the base;

the heating assembly is arranged on the base and is positioned in the accommodating cavity, and a first heat insulation cavity is formed between the shell and the heating assembly; and

a first thermal insulation assembly disposed within the first thermal insulation cavity, the first thermal insulation assembly including a first thermal insulator and a first heat reflector, the first heat reflector disposed between the first thermal insulator and the housing.

In the heating module according to an embodiment of the present application, the first insulator includes a porous heat insulating material filled between the housing and the heating element.

In the heating module of this application embodiment, porous insulation material is glass fiber or aerogel.

In the heating module according to an embodiment of the present application, the first heat insulator is a heat shield that is provided around an outer peripheral side of the heating unit.

In the heating module of the embodiment of the present application, the first heat reflector is a heat reflective film or a heat reflective portion formed by surface treatment.

In the heating module of the embodiment of the present application, the heat reflective film is a metal sheet.

In the heating module of the embodiment of the present application, the metal sheet is an aluminum foil.

In the heating module of this application embodiment, the first thermal-insulated chamber is located between the casing and the heating element.

In the heating module of this application embodiment, the first thermal-insulated chamber is located between the base and the heating element.

In the heating module of the embodiment of the present application, the first heat reflector is disposed between the housing and the first heat insulator.

In the heating module of the embodiment of the application, the heating module further includes a smoke cup, the smoke cup is disposed at one end of the heating assembly far away from the base and is located in the accommodating cavity, a second heat insulation cavity is formed between the smoke cup and the housing, and the second heat insulation cavity is communicated with the first heat insulation cavity;

a second heat insulation assembly is arranged in the second heat insulation cavity and comprises a second heat insulator and a second heat reflector, and the second heat reflector is arranged between the second heat insulator and the shell.

In the heating module of the embodiment of the application, the heating assembly includes a heat conducting element and a heating element, wherein an accommodating part is arranged at one end of the heat conducting element facing the base, and the heating element is arranged in the accommodating part;

an air guide groove is formed in the outer wall of the heat conducting element, and extends from one end, close to the base, of the heat conducting element to one end, far away from the base, of the heat conducting element.

In the heating module of this application embodiment, be provided with the inlet port on the outer wall of casing, the inlet port set up in the casing is close to the one end of base, and be used for the intercommunication outside air with the air guide groove.

In the heating module of this application embodiment, the heating module still includes support piece, support piece sets up between the base and the heat conduction element, support piece includes:

a susceptor for supporting the heat conducting element;

the supporting column is fixed on the base and is connected with one end, close to the base, of the bearing table; and

the fixing parts are arranged at intervals and are arranged at one end, far away from the base, of the bearing table, an accommodating space is formed among the fixing parts, and the end part of the heat conducting element is arranged in the accommodating space.

In the heating module of this application embodiment, the heating module still includes the connecting piece, the connecting piece is located hold the intracavity, the tobacco bowl pass through the connecting piece with heat-conducting element fixed connection.

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

The application discloses heating module and smoke generating device sets up first thermal-insulated subassembly through the first thermal-insulated intracavity that forms between heating element and shell, and first thermal-insulated subassembly includes first heat-insulating body and first heat reflector, and first heat reflector is located between first heat-insulating body and the shell. This application prevents heating element's calorific loss through setting up first insulator to improve heating element's work efficiency, and set up first heat reflector through the outside at first insulator, in order will see through the radiant heat energy of first insulator and reflect to first insulator again, and then use through the cooperation of first insulator and first heat reflector, can greatly reduced heating element's calorific loss.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

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

FIG. 3 is an exploded view of a heating module according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a heating module according to an embodiment of the present disclosure in partial cross section;

FIG. 5 is a schematic structural diagram of a supporting member in the heating module according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a heat conducting element in a heating module according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a first thermal shield assembly and a second thermal shield assembly of a heating module according to an embodiment of the present disclosure;

FIGS. 8(a) to 8(c) are schematic structural views of a first heat-insulating assembly and a second heat-insulating assembly in a heating module according to another embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a heating module according to another embodiment of the present application;

FIG. 10 is a schematic structural diagram of a connecting member in a heating module according to an embodiment of the present disclosure;

fig. 11(a) to 11(d) are connection diagrams of the smoking cup, the connecting member and the heating element in the heating module according to other embodiments of the present application.

Detailed Description

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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a smoke generating device according to an embodiment of the present disclosure; fig. 2 is a schematic diagram of an electrical connection configuration of a smoking device provided by an embodiment of the present application.

Referring to fig. 1, a smoke generating device 1000 in the embodiment of the present application includes six components, namely, an upper cover, a bottom case, a battery, a Printed Circuit Board (PCB) board, a supporting frame, and a heating module 100. During assembly, the battery and the PCB are arranged on the support frame, then the support frame is arranged in the bottom shell, the heating module 300 is arranged on the support frame, finally the upper cover is assembled, 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 aid for a user to smoke a smoking article. In particular, the smoking article may be a tobacco or a cigarette.

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 for supplying power to the driving module 200 and the heating module 300. The driving module 200 drives the heating module 300 to work, and the heating module 300 heats the air entering the heating module 300, and the hot air bakes the tobacco product, so that the tobacco product is atomized into smoke for a user to suck.

Please refer to fig. 3 and 4. The heating module 300 provided by the embodiment of the present application includes a housing 10, a support member 20, a heating assembly 30, a connector 40, a bowl 50, a first thermal insulation assembly 60, and a second thermal insulation assembly 70.

The housing 10 includes a base 11 and a case 12. The housing 12 is disposed on the base 11, and forms an accommodating chamber M with the base 11. The holding cavity M sequentially accommodates the supporting member 20, the heating assembly 30, the connecting member 40 and the smoking cup 50 from bottom to top.

The support member 20 is fixed to the base 11 and serves to support the heating assembly 30.

The heating assembly 30 is disposed on the support 20. A first insulating chamber N1 is formed between the housing 10 and the heating assembly 30. Specifically, in the present embodiment, the first insulating chamber N1 is located between the housing 12 and the heating assembly 30.

The bowl 50 is disposed at an end of the heating assembly 30 remote from the support member 20. A second insulated chamber N2 is formed between the bowl 50 and the housing 12. The second insulating chamber N2 communicates with the first insulating chamber N1. Wherein the cups 50 are used for holding smoking articles.

The connecting piece 40 is arranged between the heating assembly 30 and the smoking cup 50, and the smoking cup 50 is fixedly connected with the heating assembly 30 through the connecting piece 40.

The first insulating assembly 60 is disposed within the first insulating chamber N1. The first insulation assembly 60 includes a first insulation body 61 and a first heat reflector 62. The first heat reflector 62 is disposed between the first insulator 61 and the case 12.

The second insulating assembly 70 is disposed within the second insulating chamber N2. The second insulation assembly 70 includes a second insulation 71 and a second heat reflector 72. The second heat reflector 72 is disposed between the second insulator 71 and the case 12.

In this embodiment, first and

second insulation assemblies

60, 70 are integrally formed. Specifically, the first heat insulator 61 and the second heat insulator 71 are integrally molded, and the first heat reflector 62 and the second heat reflector 72 are integrally molded.

In some embodiments, first insulation assembly 60 and second insulation assembly 70 may also be of a split construction. The first insulator 61 and the second insulator 71 may be separate structures, and the first heat reflector 62 and the second heat reflector 72 are also separate structures, which are not described herein again.

The heating module 300 of the present embodiment provides the first adiabatic assembly 60 in the first adiabatic chamber N1 formed between the heating assembly 30 and the housing 12, the first adiabatic assembly 60 including the first adiabatic body 61 and the first heat reflector 62, the first heat reflector 62 being located between the first adiabatic body 61 and the housing 12. In the embodiment, the first heat insulator 61 is arranged to reduce the heat loss of the heating assembly 30, so as to improve the working efficiency of the heating assembly 30, and the first heat reflector 62 is arranged outside the first heat insulator 61, so that the first heat reflector 62 can reflect the radiant heat energy transmitted through the first heat insulator 61 to the first heat insulator 61 again, and the heat loss of the heating assembly 30 can be greatly reduced by matching the first heat insulator 61 and the first heat reflector 62. In addition, the above arrangement reduces the temperature of the housing 12 and promotes comfort during use of the smoke generating device.

Further, the present embodiment provides the second heat insulation assembly 70 in the second heat insulation cavity N2 formed between the cup 50 and the housing 12, wherein the second heat insulation assembly 70 includes the second heat insulator 71 and the second heat reflector 72, and the second heat reflector 72 is located between the second heat insulator 71 and the housing 12, so that, by using the second heat insulator 71 and the second heat reflector 72 in cooperation, the heat loss of the cup 50 is reduced, so that the smoking article in the cup 50 can be sufficiently heated by the hot air entering the cup 50, thereby facilitating to improve the atomization efficiency of the smoking article, so that the smoker can timely smoke the smoking article.

Please refer to fig. 3 to fig. 6. In the heating module 300 of the present embodiment, the heating element 30 includes a heating element 31, a heat conducting element 32 and a first temperature sensing element 33.

The support member 20 is fixed to the base 11. The support 20 includes a carrier 21, a support column 22 and a plurality of fixing portions 23 arranged at intervals. The carrier table 21 serves to support the heat conducting element 32. The supporting column 22 is fixed on the base 11 and connected to one end of the bearing platform 21 close to the base 11. The fixing portions 23 are disposed on an outer peripheral edge of an end of the platform 21 away from the base 11.

An accommodating space 23a is formed between the fixing portions 23. The end 231 of the heat conducting element 32 is disposed in the accommodating space 23 a.

Wherein, a plurality of fixing portions 23 are uniformly and alternately arranged along the circumferential direction of the bearing table 21. This setting can play good fixed and limiting displacement to heat-conducting element 32, avoids heat-conducting element 32 to take place the skew at the in-process that receives external collision for air through heat-conducting element 32 heating can evenly transmit to the cigarette cup 50 in, and then is favorable to improving smoking taste of tobacco products.

The material of the support member 20 may include a material such as zirconia, silica or ceramic that is resistant to high temperatures and has a low thermal conductivity to reduce conductive heat transfer so that the heat of the heat-conducting element 32 is not rapidly transferred to the bowl 50, thereby reducing losses during heat transfer.

In addition, in the embodiment, the end 231 of the heat conducting element 32 is in contact with the supporting member 20, so that on the premise that the supporting member 20 can fix the heat conducting element 32 well, the contact area between the heat conducting element 32 and the supporting member 20 is reduced to the maximum extent, the heat conducted from the heat conducting element 32 to the supporting member 20 is reduced, and the loss in the heat conducting process is further reduced.

In some embodiments, to further reduce the contact area of the heat conducting element 32 and the support member 20, the height of the contact portion of the heat conducting element 32 and the support member 20 is not more than one third of the height of the heat conducting element 32.

The end of the heat conducting element 32 facing the base 11 is provided with a receiving portion 32 b. The heating element 31 is disposed in the accommodating portion 32b and sealed with an inorganic paste such as a ceramic paste or a glass frit paste. The heating element 31 is electrically connected to the driving module 200.

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

The heat conducting element 32 is made of a material with a high thermal conductivity. The material of the heat conducting element 32 may include a sintered body of a material such as alumina, zirconia, or silicon nitride; and may also include metallic materials such as aluminum, copper, or iron. When the heat conducting element 32 is made of a metal material, the surface of the heat conducting element 32 needs to be insulated to prevent the heat conducting element 32 from contacting the heat generating element 31, which may cause a short circuit of the heat generating element 31.

The first temperature sensing element 33 is disposed on the heat conducting element 32 and is used for sensing the temperature of the heat conducting element 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 an outer wall of the heat conducting element 32, so as to accurately sense the temperature of the heat conducting element 32.

Alternatively, the first temperature-sensitive element 33 may be a thermocouple, or other device for sensing temperature.

In this embodiment, the heating module 300 monitors the real-time temperature of the heat conducting element 32 through the first temperature sensing element 33, and compare the real-time temperature with the target set temperature in the driving module 200, in addition, the user state of the smoking device is combined, such as in the preheating stage, the smoking stage, etc., then the work of the heating assembly 30 is controlled through the driving module 200, so as to control the temperature of the heat conducting element 32, and further guarantee the consistency of the temperature of the smoking article baked by the heat conducting element 32 in the working process, guarantee the atomization effect of the smoking article and the release of nicotine, and further guarantee the comfortable taste of the smoking article through 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, and the second temperature sensing element 51 is mounted on the base 11 and disposed outside the smoking cup 50 for detecting the temperature of the smoking cup 50. Wherein, in order to accurately monitor the real-time temperature of the smoking cup 50, the second temperature sensing element 51 can be closely attached to the outer wall of the smoking cup 50.

In some embodiments, a resistance heating wire with a resistance value varying with temperature may also be used, that is, a temperature control manner using a Temperature Coefficient of Resistance (TCR) is adopted, which is not described herein again.

Please refer to fig. 3 to fig. 7. In the heating module 300 of the present embodiment, the first insulator 61 includes a porous insulating material. The porous insulating material is filled between the housing 12 and the heating element 30. Specifically, the porous heat insulating material covers the heat conducting element 32 and the outer peripheral side of the bowl 50.

The heat conducting element 32 may have a temperature of up to 400 ℃ during operation, and therefore, a measure for keeping the heat of the heat conducting element 32 warm is particularly important. In the embodiment, the porous heat insulating material is coated on the outer peripheral side of the heat conducting element 32, so that the heat generated by the heat conducting element 32 is not easy to conduct and diffuse outwards, and further the heat generated by the heat conducting element 32 can be utilized to the maximum extent to heat air, so that the hot air can be utilized to better atomize the tobacco products in the smoking cup 50, and the smoking taste is improved.

Alternatively, the porous heat insulating material may be glass fiber, aerogel or heat insulating cotton. Because the porous material contains the gaps, the heat conductivity coefficient of air or inert gas in the gaps is low, and the heat loss through a heat conduction mode can be effectively reduced. Of course, the first insulator 61 may also include other insulating materials, which are not limited in this application.

In this embodiment, the porous insulating material is fiberglass. Because the glass fiber has better heat resistance, lower heat conductivity and better flame retardance, and is a nontoxic and harmless material without peculiar smell at high temperature, the glass fiber is selected as a heat insulation material, so that the better heat insulation effect is achieved, the environment is not polluted, and the taste of the food can not be influenced.

Further, since the temperature of the cup 50 affects the temperature of the housing 12, in the embodiment, the porous heat insulating material is coated on the outer periphery of the cup 50, on one hand, the heat loss in the cup 50 is reduced, and the hot air in the cup can heat the smoking product better; on the other hand, the temperature of the housing 12 is reduced, thereby ensuring a comfortable feel when the smoke generating device is in use.

In the present embodiment, the first heat reflector 62 is a heat reflective film. Specifically, the heat reflective film may be a metal foil, and the material of the metal foil may include metals having heat reflective properties such as aluminum, gold, silver, nickel, and the like; alternatively, the heat reflective film may be a film material capable of reflecting radiant heat energy, such as a polyester or polyimide film plated with a metal material, and the material of the heat reflective film is not particularly limited in this embodiment.

In the present embodiment, the heat reflective film is merely used as a metal sheet for explanation, but the present invention is not limited thereto.

Specifically, in this embodiment, the metal sheet is an aluminum foil. Specifically, the aluminum foil is an aluminum foil coil. The aluminum foil coil is coated on the periphery of the porous heat insulation material.

The aluminum foil has good ductility, low self-thermal resistance and low absorption rate of radiant heat energy, and 80-95% of heat energy can be reflected to the first heat insulator 61 due to the smooth surface of the aluminum foil. Therefore, in the present embodiment, the porous heat insulating material and the aluminum foil are used in combination, so that the heat loss in the heat conducting element 32 can be greatly reduced, and the working efficiency of the heat conducting element 32 can be further improved. In addition, the above arrangement further reduces heat loss in the bowl 50, thereby further enhancing comfort of use of the smoke generating device.

In some embodiments, the first heat reflector 62 may also be a surface-treated heat reflector. The heat reflection structure is coated on the outer periphery of the porous heat insulating material. Specifically, the heat reflection portion having a heat reflection effect may be formed by a physical or chemical method, for example, by polishing the surface of the heat reflection portion to be formed, so that the surface of the heat emission portion is smooth, thereby playing a role of reflecting radiant heat energy; alternatively, a physical vapor deposition process, a chemical vapor deposition process, or an electroplating process may be used to form a film having the function of reflecting radiant heat energy on the surface of the heat reflection portion to be formed, such as a metal film of aluminum, silver, copper, or the like, or a non-metal film of polyester, polyimide, or the like.

It should be noted that the material of the heat reflection portion to be formed is not particularly limited in the present application, and it is within the scope of the present application as long as the heat reflection portion obtained by the surface treatment has the effect of reflecting radiant heat energy.

In the embodiment, since the end 321 of the heat conducting element 32 is in contact with the fixing portion 23 of the supporting member 20, in order to prevent the heat in the heat conducting element 32 from being transferred to the platform 21 along the fixing portion 23, the first thermal insulator 61 is further disposed between the housing 12 and the supporting member 20, so that the heat loss in the heat conducting element 32 can be further reduced.

Referring to fig. 8(a), the difference between the embodiment shown in fig. 7 is that in some embodiments, the first insulator 61 is a heat shield. The heat shield is sleeved on the outer periphery of the heat conducting element 32 and the smoke cup 50. When the first heat reflector is a heat reflecting film, the heat reflecting film is attached to the outer peripheral wall of the heat shield. The material of the heat shield may include glass fiber, aerogel, etc., which are not described herein.

Please refer to fig. 8(b) and fig. 8(c) together. In addition to the embodiments corresponding to fig. 7 and 8(a), in some embodiments, the heating module 300 further includes a third thermal insulator 80, as shown in fig. 8(b) and 8(c), respectively. The third thermal insulator 80 is disposed around the outer periphery of the first and second thermal insulating

members

60 and 70. Wherein the third insulator 80 may be a vacuum tube. This arrangement further reduces the temperature of the housing 12 as the vacuum tube provides further thermal insulation, thereby further improving the comfort of the smoker when in use. In particular, in experimental studies, it was found that the temperature of the housing 12 can be controlled below 40 ℃ by the arrangement of the vacuum tube.

It should be noted that, in the above embodiments, the second thermal insulation assembly 70 is described as being integrally formed with the first thermal insulation assembly 60, wherein the structure and the material of the second thermal insulation body 71 can refer to the description of the first thermal insulation body 61, and the structure and the material of the second thermal reflector 72 can refer to the description of the first thermal reflector 62, which is not repeated herein.

With continued reference to fig. 9, in some embodiments, the first insulating chamber 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 between the housing 12 and the heating element 30 and between the base 11 and the heating element 30.

Specifically, the first insulating chamber N1 includes a first sub insulating chamber N1 and a second sub insulating chamber N2. The first sub-insulating chamber n1 is located between the case 12 and the heat conducting element 32. The second sub-insulating chamber n2 is located between the support member 20 and the heat conducting element 32. The first sub-insulating cavity n1 is communicated with the second sub-insulating cavity n 2.

The first insulation assembly 60 includes insulation 61 and aluminum foil 62. The heat insulating material 61 is filled in the first sub heat insulating chamber n1 and the second sub heat insulating chamber n 2. The thermal insulation material 61 is a porous thermal insulation material. The aluminum foil 62 is wrapped around the portion of the insulating material 61 located within the first sub-insulating chamber n 1.

The above arrangement can simultaneously reduce the probability of heat transfer from the heat conducting element 32 to the housing 12 and the base 11, i.e. reduce the heat loss at the side and the bottom of the heat conducting element 32, and further improve the working efficiency of the heating assembly 30 to the maximum extent, so that the air inside the heating assembly 30 can be sufficiently heated. In addition, in other embodiments, the first insulating chamber N1 may be located only between the base 11 and the heating assembly 30. The first insulating assembly 60 is disposed in the first insulating chamber N1, in other words, the first insulating assembly 60 is disposed only between the base 11 and the heating assembly 30, and will not be described herein.

Referring to fig. 3, 4 and 10 together, in the present 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 first connecting portions 42 are disposed on an inner peripheral edge of one end of the base 41 close to the cup 50.

The first connection portions 42 are arranged at regular intervals along the circumferential direction of the base 41. The first connecting portion 42 extends to the inside of the bowl 50 and serves to fix the bowl 50 to the base 41. In addition, the first connection 42 may also be used to adjust the distance of the smoking article within the bowl 50 from the heating assembly 30 to control the heating temperature of the smoking article. The shape of the first connection portion 42 is not limited in the present application, and the first connection portion 42 may be a prism or a cylinder, and the manner in which the first connection portion 42 fixes the bowl 50 is also not limited in the present application.

In this embodiment, the first connecting portion 42 includes a first surface 421a parallel to the inner wall of the cup 50, the first surface 421a abuts against the inner wall of the cup 50, the bottom wall of the cup 50 and the upper surface of the base 41 together form a step-shaped fixing portion, and the cup 50 is fixed on the fixing portion. In another embodiment, for example, a protrusion may be provided on the surface of the first connection portion 42, a recess may be provided in the cup 50, and the protrusion on the surface of the first connection portion 42 may be fitted into the recess in the cup 50 to fix the first connection portion 42 and the cup 50.

In the embodiment, the connecting member 40 is further provided with a limiting groove 43, and an end of the heat conducting element 32 abuts against the limiting groove 43 to limit the position of the heat conducting element 32. The limiting groove 43 may be opened on the first connecting portion 42. Specifically, the stopper groove 43 may be opened on the inward side of the first connection portion 42. The retaining groove 43 may also include a first retaining surface 431 and a second retaining surface 432. The first and second stop surfaces 431, 432 are substantially perpendicular. The first stopper surface 431 is parallel to and abuts against the top surface of the heat conductive element 32, and the second stopper surface 432 is parallel to and abuts against the peripheral side surface of the heat conductive element 32.

Referring to fig. 11(a), in some embodiments of the present application, the limiting groove 43 may also be opened on the base 41. The first stopper surface 431 and the second stopper surface 432 are located on the side of the base 41 away from the first connecting portion 42.

Referring to fig. 11(b) to 11(d), in other embodiments of the present application, a plurality of second connecting portions 44 are disposed on a side of the base 41 close to the heat conducting element 32, as shown in fig. 11 (b). The plurality of second connection portions 44 are provided around the periphery of the base 41. The shape of the second connection portion 44 is not limited in the present application, and may be a prism or a cylinder. The present application also does not limit the manner in which the second connection 44 secures the thermally conductive element 32. In the present embodiment, the heat conducting element 32 is sandwiched between the plurality of second connection portions 44. In order to reduce the contact area of the second connection part 44 with the heat conductive element 32, the length h1 of the contact part of the second connection part 44 with the heat conductive element 32 is not more than one third of the height h2 of the heat conductive element 32. The connecting member 40 may further include a limiting groove 43, please refer to fig. 11(b), fig. 11(c), and fig. 11(d), respectively, the end of the heat conducting element 32 abuts against the limiting groove 43, and the limiting groove 43 may be opened on one of the base 41, the first connecting portion 42, and the second connecting portion 44. The retaining groove 43 may also include a first retaining surface 431 and a second retaining surface 432. The first and second stop surfaces 431, 432 are substantially perpendicular. The first stopper surface 431 is parallel to and abuts against the top surface of the heat conductive element 32, and the second stopper surface 432 is parallel to and abuts against the peripheral side surface of the heat conductive element 32.

In addition, the material of the connection member 40 may include a material that is resistant to high temperature and has a low thermal conductivity, such as zirconia, silica, or ceramic. In the embodiment, the connection end of the connection member 40 is set to be a column shape, so that the smoking cup 50 and the connection member 40 have a smaller contact area, and the smoking cup 50 is in contact with the heat conducting element 32 of the heating assembly 30 through the connection member 40, thereby reducing heat loss of conduction heat conduction, so that the conduction heat is not too much, and the working efficiency of the heating assembly 30 is not affected.

Please continue to refer to fig. 4 and fig. 6. In the heating module 300 of the present embodiment, the outer wall of the heat conducting element 32 is formed with an air guiding groove 32 a. The air guide groove 32a extends from an end of the heat conducting element 32 close to the base 11 to an end of the heat conducting element 32 far from the base 11.

An air intake hole 12a is provided on an outer wall of the housing 12. The air inlet hole 12a is disposed at one end of the housing 12 close to the base 11 and is used for communicating the outside air with the air guide groove 32 a.

An air vent 62a is provided on an end of the first heat reflector 62 near the base 11. The air vent hole 62a corresponds to and communicates with the intake hole 12 a.

In the present embodiment, the heat released from the heating element 31 is transferred to the heat conducting element 32 by heat conduction, and then the heat of the heat conducting element 32 is transferred to the air in the air guiding groove 32a by heat convection with the air, so as to complete the air heating operation.

Specifically, when a user has a smoking action, after the outside air entering from the air inlet 12a enters the vent hole 62a, the outside air enters the air guide groove 32a through the gap inside the first heat insulator 61, the heat of the heat conducting element 32 and the air in the air guide groove 32a are convected, so that the air is heated, the heated air enters the smoking cup 50, and the smoking article begins to be baked, so that the smoking article is atomized to generate smoke, and nicotine is released for the smoker to use.

The assembly method of the heating module 300 in this embodiment is as follows: firstly, the cigarette cup 50 and the heat conducting element 32 are fixedly connected through the connecting piece 40, and the heating element 31 is placed in the accommodating part 32b of the heat conducting element 32; then, the assembled structure is fixed on the supporting member 20, wherein the end 231 of the heat conducting element 32 is fixedly connected with the supporting member 20; then, the whole formed by the smoking cup 50, the connector 40, the heat conducting element 32, the heating element 31 and the support member 20 is connected with the base 11; finally, the assembled structure is placed into the housing 12. Thus, the assembly of the heating module 300 according to the embodiment of the present application is completed.

Compared with the heating module in the prior art, the heating module of the present embodiment includes a first thermal insulation assembly disposed in a first thermal insulation cavity formed between the heating assembly and the housing, where the first thermal insulation assembly includes a first thermal insulator and a first thermal reflector, and the first thermal reflector is located between the first thermal insulator and the housing. This embodiment reduces heating element's calorific loss through setting up first insulator to improve heating element's work efficiency, and through set up first heat-reflecting body in the outside at first insulator, because first heat-reflecting body can reflect the radiant heat energy who passes through first insulator to first insulator again, and then use through the cooperation of first insulator and first heat-reflecting body, can greatly reduced heating element's calorific loss. In addition, the temperature of the shell is reduced, and the comfort of the smoke generating device in use is improved.

The foregoing provides a detailed description of embodiments of the present application, and the principles and embodiments of the present application have been described herein using specific examples, which are presented solely to aid in the understanding of the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A heating module for a smoking device, the heating module comprising:

2. The heating module of claim 1, wherein the first insulator comprises a porous insulating material filled between the housing and the heating assembly.

3. The heating module of claim 2, wherein the porous insulating material is fiberglass or aerogel.

4. The heating module of claim 1, wherein the first thermal insulator is a thermal shield that is nested around a peripheral side of the heating assembly.

5. The heating module of claim 1, wherein the first heat reflector is a heat reflective film or a surface-treated heat reflector.

6. The heating module of claim 5, wherein the heat reflective film is a foil.

7. The heating module of claim 6, wherein the metal foil is aluminum foil.

8. The heating module of claim 1, wherein the first insulated chamber is located between the housing and the heating assembly.

9. The heating module of claim 1, wherein the first insulated chamber is located between the base and the heating assembly.

10. The heating module of claim 9, wherein the first heat reflector is disposed between the housing and the first insulator.

11. The heating module of claim 1, further comprising a cup disposed at an end of the heating assembly remote from the base and within the receiving cavity, the cup and the housing forming a second insulated chamber therebetween, the second insulated chamber communicating with the first insulated chamber;

12. The heating module of claim 11, wherein the heating assembly comprises a heat conducting element and a heating element, wherein a receiving portion is disposed at an end of the heat conducting element facing the base, and the heating element is disposed in the receiving portion;

13. The heating module as claimed in claim 12, wherein an air inlet is disposed on an outer wall of the housing, and the air inlet is disposed at an end of the housing close to the base and is used for communicating the outside air with the air guide groove.

14. The heating module of claim 12, further comprising a support disposed between the base and the thermally conductive element, the support comprising:

a susceptor for supporting the heat conducting element;

15. The heating module of claim 12, further comprising a connector located within the receiving cavity, the bowl being fixedly connected to the heat conducting element by the connector.

16. A smoking device comprising a heating module according to any one of claims 1 to 15.