Heating module and electronic smoking set
By setting an insulating heat-conducting layer on the outside of the heat pipe and adding an isolation film on the outside of the heating element, the problem of easy short circuit between the heat pipe and the heating element is solved, and the heat transfer efficiency and stability of the heating module are improved.
Patent Information
- Application Number
- CN202423220608.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-09-30
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Short circuits are prone to occur between the heat pipe and the heating element, resulting in significant heat loss from the heating module and affecting heating efficiency.
An insulating heat-conducting layer is set on the outside of the heat pipe to separate the heating component and the metal body. An insulating material with better thermal conductivity is used to avoid short circuits, and an isolation film is added to the outside of the heating component to concentrate and prevent heat from dissipating.
This reduces heat loss from the heating module, improves heating efficiency, and ensures a stable connection between the heating element and the heat pipe.
Smart Images
Figure CN223715055U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electronic smoking sets, in particular to a heating module and an electronic smoking set. BACKGROUND
[0002] Heat-not-burn is a technology that uses a special heating device to heat a special "cartridge" or "cigarette" to a low temperature to release smoke, avoiding the production of toxic and harmful substances by high-temperature combustion, while being able to experience a close taste and flavor to cigarettes.
[0003] The heating module that realizes the heat-not-burn function generally has a heat pipe arranged to conduct and evenly distribute the heat emitted by the heating assembly. The heat pipe is generally made of metal, and metal generally has excellent electrical conductivity. The heat pipe is easy to cause short circuit between multiple parts of the heating assembly. CONTENT OF THE UTILITY MODEL
[0004] To this end, the first thought of the researchers is to wrap a layer of PI film on the outside of the heat pipe for insulation, and then arrange the heating assembly outside the PI film to insulate and connect the heating assembly and the heat pipe through the PI film. The heat transfer effect between the heating assembly and the heat pipe is affected by the low thermal conductivity of the PI film itself, which has a good barrier effect on the heat generated by the heating assembly. Therefore, the heat loss of the heating module is large. The present application provides a heating module and an electronic smoking set, which aims to avoid short circuit of the heating assembly while improving the heating efficiency of the heating module.
[0005] In one aspect, the present application provides a heating module, comprising:
[0006] a heat pipe, the heat pipe comprising a metal body and an insulating heat conduction layer arranged outside the metal body, the metal body having an insertion channel formed therein; and
[0007] a heating assembly arranged outside the metal body and spaced apart from the metal body by the insulating heat conduction layer.
[0008] In some embodiments, the thickness of the insulating heat conduction layer is less than 0.1 mm.
[0009] In some embodiments, the thermal conductivity of the insulating heat conduction layer is greater than 0.2 W / (m·K).
[0010] In some embodiments, the heating module further comprises an isolation film arranged outside the heating assembly, and the thermal conductivity of the isolation film is less than the thermal conductivity of the insulating heat conduction layer.
[0011] In some embodiments, the isolation film is coated with tpi glue, the heating component is bonded to the isolation film, and the isolation film is further bonded between the tpi glue and the insulating and heat-conducting layer.
[0012] In some embodiments, the heating component includes a heating circuit etched on the insulating and heat-conducting layer.
[0013] In some embodiments, the insulating and heat-conducting layer is a zirconium oxide insulating and heat-conducting layer; or,
[0014] The insulating and heat-conducting layer is an aluminum oxide insulating and heat-conducting layer.
[0015] In some embodiments, the isolation film is wound at least three layers on the outside of the heating component.
[0016] In some embodiments, the heating component includes a first heating unit and a second heating unit arranged in sequence along a first direction, the first heating unit is used to heat a first smoking segment of a cigarette, and the second heating unit is used to heat a second smoking segment of the cigarette.
[0017] The heat-conducting pipe includes a first heat-conducting portion corresponding to the first heating unit and a second heat-conducting portion corresponding to the second heating unit, and the first heat-conducting portion and the second heat-conducting portion are arranged in a spaced manner in the first direction.
[0018] The application also provides an electronic smoking set including the heating module.
[0019] The application avoids the heating component from being short-circuited by the metal body by arranging the insulating and heat-conducting layer outside the metal body and spacing the heating component and the metal body by the insulating and heat-conducting layer. The scheme of using the insulating and heat-conducting layer can reduce the heat loss of the heating module and thus improve the heating efficiency of the heating module, compared with the scheme of using a PI film for insulation. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.
[0021] FIG. 1 is a structure diagram of a cigarette used by an electronic smoking set;
[0022] FIG. 2is a perspective structural schematic view of an electronic smoking set provided by some embodiments of the present application;
[0023] FIG. 3 is FIG. 2 is a cross-sectional view of the electronic smoking set in
[0024] FIG. 4 is an exploded view of a first embodiment of a heating module provided by the present application;
[0025] FIG. 5 is an exploded view of a second embodiment of a heating module provided by the present application;
[0026] FIG. 6 is a top view of an embodiment of a heat-conducting pipe provided by the present application.
[0027] Main element symbol explanation:
[0028] Reference Name Reference Name 100 Electronic smoking set 10 Heating module 20 Heating assembly 21 First heating unit 22 Second heating unit 23 Isolating film 43 Second heat-conducting part 40 Heat-conducting tube 41 Insertion channel 1 Cigarette 11 First cigarette segment 12 Second cigarette segment 44 Metal main body 42 First heat-conducting part 45 Insulating heat-conducting layer DETAILED DESCRIPTION
[0029] 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 some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first” and “second” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.
[0031] “A and / or B” includes the following three combinations: only A, only B, and a combination of A and B.
[0032] The use of “adapted to” or “configured to” in this application means open and inclusive language that is not closed to additional devices that are adapted to or configured to perform the additional tasks or steps. Additionally, the use of “based on” means open and inclusive, as the process, step, calculation, or other action that is based on one or more recited conditions or values can be based on additional conditions or values beyond those that are recited.
[0033] In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as "exemplary" in this application is not necessarily to be construed as preferred or advantageous over other implementations. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, for purposes of explanation, specific details are set forth. It is apparent to those skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known structures and processes are not elaborated upon in order not to obscure the description of the present application with unnecessary details. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded with the widest scope consistent with the principles and features disclosed.
[0034] Heat-not-burn is a technology that uses a special heating device to heat a special "cartridge" or "cigarette" to a low temperature to release smoke, avoiding the generation of toxic and harmful substances by high-temperature combustion, while being able to experience close to the taste and flavor of a cigarette.
[0035] And the heating module that realizes the heat-not-burn function generally sets a heat pipe to conduct and evenly heat the heat generated by the heating component. The heat pipe is generally made of metal, and metal generally has excellent electrical conductivity. The heat pipe is easy to cause short circuit between multiple parts of the heating component.
[0036] To this end, the first thought of the researchers is to wrap a layer of PI film on the outside of the heat pipe for insulation, and then set the heating component outside the PI film. The PI film is used to separate the heating component and the heat pipe to achieve insulation connection between them. In this scheme, the PI film itself has a low thermal conductivity and good barrier effect on the heat generated by the heating component. Therefore, it will affect the heat transfer effect between the heating component and the heat pipe, resulting in large heat loss of the heating module.
[0037] PI film refers to polyimide film, which has good thermal conductivity, insulation, adhesion, and radiation resistance.
[0038] To this end, please refer to FIG. 1 to FIG. 6The heating module 10 comprises a heat-conducting pipe 40 and a heating component 20, the heat-conducting pipe 40 comprises a metal main body 44 and an insulating heat-conducting layer 45 arranged outside the metal main body 44, and an insertion channel 41 is formed in the metal main body 44; the heating component 20 is arranged outside the metal main body 44 and is spaced apart from the metal main body 44 by the insulating heat-conducting layer 45.
[0039] It should be noted that the specific implementation form of the heating component 20 is not limited, which can be a heating net, a printed heating circuit, a carbon fiber heating body, etc., and is not limited herein. The material of the metal main body 44 is not limited, which can be in the form of a copper pipe or a stainless steel pipe, etc., and is not limited herein. The forming method of the insulating heat-conducting layer 45 is not limited, which can be directly coated on the outside of the metal main body 44 or directly sprayed on the outside of the metal main body 44, and can be in the form of insulating paint, aluminum oxide, zirconium oxide, etc., as long as it can play the role of insulation and heat conduction.
[0040] According to the embodiment, the insulating heat-conducting layer 45 is arranged outside the metal main body 44, the heating component 20 and the metal main body 44 are spaced apart by the insulating heat-conducting layer 45, the heating component 20 is prevented from being short-circuited by the metal main body 44, and the scheme of using the insulating heat-conducting layer 45 has better heat conduction effect than the scheme of using a PI film, so that the heat loss of the heating module 10 is reduced, and the heating efficiency of the heating module 10 is higher.
[0041] It can be understood that the thinner the thickness of the insulating heat-conducting layer 45 is, the better the heat conduction effect is, and therefore, in an embodiment, the thickness of the insulating heat-conducting layer 45 is less than 0.1 mm. In the scheme of the embodiment, the thickness of the insulating heat-conducting layer 45 is less than 0.1 mm, which is thinner than the thickness of the existing PI film, and therefore, the heat conduction effect is better.
[0042] It should be emphasized that the insulating heat-conducting layer 45 is formed by coating or spraying, and therefore, its thickness can be thinner than the thickness of the film, so that the heat conduction effect is better.
[0043] Currently, the heat conduction coefficient of the PI film is generally less than 0.2 W / (m·K), and therefore, it has excellent heat resistance and heat insulation performance. Therefore, in an embodiment, the heat conduction coefficient of the insulating heat-conducting layer 45 is greater than 0.2 W / (m·K), so that the heat conduction coefficient of the insulating heat-conducting layer 45 is higher than that of the PI film, the heat conduction performance is better, and the heat loss of the heating module 10 is smaller.
[0044] Further, in order to prevent the heat emitted by the heating assembly 20 from spreading outside the insertion channel 41, the heating module 10 further comprises an isolation film 23 arranged outside the heating assembly 20. In the technical solution of the embodiment, the isolation film 23 is arranged outside the heating assembly 20, so that the isolation film 23 can isolate and concentrate the heat emitted by the heating assembly 20, prevent the heat from spreading outside, and reduce the heat loss of the heating module 10.
[0045] Further, the thermal conductivity coefficient of the isolation film 23 is less than that of the insulating and heat-conducting layer 45. In the solution of the embodiment, since the thermal conductivity coefficient of the isolation film 23 is less than that of the insulating and heat-conducting layer 45, the isolation film 23 has better heat insulation effect, can effectively isolate and concentrate the heat emitted by the heating assembly 20, prevent the heat from spreading outside, and reduce the heat loss of the heating module 10.
[0046] Specifically, the specific implementation form of the isolation film 23 is not limited, which can be a PI film (polyimide film) having good thermal conductivity, insulation, adhesion, radiation resistance, and can be used for a long time in the temperature range of the smoking tool heating, or can be an aerogel piece, etc., which is not limited here.
[0047] Further, the isolation film 23 is wound at least three layers outside the heating assembly 20, so that the isolation film 23 can form at least three layers of heat insulation outside the heating assembly 20, avoid the heat generated by the heating assembly 20 from leaking outside, reduce heat loss, and the isolation film 23 has at least three layers, which can stand up in the width direction of the isolation film 23 after being wound in multiple layers, facilitating subsequent assembly, especially when the thickness of the heat-conducting pipe 40 is thin, the winding thickness of the isolation film 23 can also effectively increase the strength of the heating module 10.
[0048] In addition, in an embodiment, the isolation film 23 is coated with tpi glue, the heating assembly 20 is bonded to the isolation film 23, and the isolation film 23 is also bonded between the tpi glue and the insulating and heat-conducting layer 45.
[0049] The tpi glue has thermoplasticity and good insulation performance, and the bonding form can tightly combine the heat-conducting pipe 40, the heating assembly 20, and the isolation film 23 together, effectively avoiding the generation of bubbles, and avoiding the influence of the expansion of the bubbles on the stability of the heating module 10.
[0050] Specifically, taking the heating assembly 20 as a heating net as an example, in the assembly process, the heating net can be placed on the isolation film 23 first, then the part of the heating assembly 20 is heat-pressed, and then it is wound on the heat-conducting pipe 40, thereby completing the assembly process of the heating module 10. In this process, the tpi glue can tightly combine the heat-conducting pipe 40, the heating assembly 20 and the isolation film 23 together.
[0051] Further, in an embodiment, the heating assembly 20 includes a heating circuit etched on the insulating heat-conducting layer 45. In the scheme of the present embodiment, by etching the heating circuit on the insulating heat-conducting layer 45, the distance between the heating circuit and the metal body 44 is closer than the scheme of arranging the heating circuit on the isolation film 23, so that the heat loss of the heat transfer between the heating circuit and the metal body 44 is smaller, and the efficiency is higher.
[0052] In some embodiments, the insulating heat-conducting layer 45 is a zirconium oxide insulating heat-conducting layer 45; or the insulating heat-conducting layer 45 is an aluminum oxide insulating heat-conducting layer 45.
[0053] It should be noted that zirconium oxide has the characteristics of high melting point, high resistivity, high refractive index and low thermal expansion coefficient, which makes it an important high-temperature resistant material, ceramic insulating material and ceramic light shielding agent, and its thermal conductivity coefficient can be as high as 2-8 W / (m·K), which can significantly reduce the heat loss in the heat conduction process.
[0054] And aluminum oxide has many excellent properties, such as high hardness, high wear resistance, high corrosion resistance and high insulation, and its thermal conductivity coefficient can be as high as 30-340 W / (m·K), which can significantly reduce the heat loss in the heat conduction process.
[0055] Please refer to FIG. 1 , the cigarette 1 is divided into a smoking segment, a cooling segment and a filter segment, the smoking segment includes a first smoking segment 11 close to the filter segment and a second smoking segment 12, the first heating unit 21 is used for heating the first smoking segment 11 of the cigarette 1, and the second heating unit 22 is used for heating the second smoking segment 12 of the cigarette 1. By such arrangement, the first heating unit 21 heats the first smoking segment 11, the generated smoke is close to the distance of the cigarette holder, and the user can quickly smoke.
[0056] It should be noted that the first heating unit 21 and the second heating unit 22 are sequentially arranged in the first direction, which can be arranged in close proximity in the first direction, or can be arranged in a spaced manner, which is not limited herein. The specific implementation form of the first heating unit 21 and / or the second heating unit 22 is not limited, which can be in the form of a heating net, a printed circuit, a carbon fiber heating body, etc. In further embodiments, the temperature rising rate of the first heating unit 21 is higher than that of the second heating unit 22, and the specific implementation form is not limited, which can be that the first heating unit 21 has a larger heating power, or when the heating power of the first heating unit 21 and the second heating unit 22 is the same, the heating area of the first heating unit 21 is smaller, etc. which is not limited herein.
[0057] The temperature rising rate refers to the length of time for heating the cigarette 1 from room temperature to the smoking temperature, for example, the longer the time for heating the cigarette 1 from room temperature to the smoking temperature, the slower the temperature rising rate, and vice versa, the shorter the time, the faster the temperature rising rate.
[0058] The first heating unit 21 and the second heating unit 22 can be arranged in series or in parallel. When arranged in series, both must be opened or closed at the same time. Therefore, in further embodiments, the first heating unit 21 and the second heating unit 22 are arranged in parallel, which corresponds to the technical solution in the present embodiment, by arranging the first heating unit 21 and the second heating unit 22 in parallel, the first heating unit 21 and the second heating unit 22 can be independently controlled, and each can be independently turned on and off.
[0059] Further, in an embodiment, the first heating unit 21 and the second heating unit 22 alternately heat, which is arranged such that only one heating unit in the heating module 10 heats at a time, so that the power supply of the electronic smoking set 100 only needs to supply power to one of the first heating unit 21 and the second heating unit 22 during heating. Correspondingly, the heating power of the first heating unit 21 and the second heating unit 22 can be made consistent with or almost the same as the heating power of the existing whole-section heating heating unit, so that the original heating power for the whole section is now only used for local heating, greatly improving the smoking efficiency of the cigarette 1.
[0060] Specifically, the initial resistance value of the heating unit needs to be as small as possible under the premise of safety, for example, when a commonly used 18650 series battery is used, the resistance value can be configured to be between 0.4Ω-1Ω.
[0061] The heat conduction pipe 40 comprises a first heat conduction part 42 and a second heat conduction part 43 arranged in sequence along a first direction, the first heat generating unit 21 is wound on the first heat conduction part 42, and the second heat generating unit 22 is wound on the second heat conduction part 43; wherein the size of the first heat conduction part 42 in the first direction is smaller than the size of the second heat conduction part 43 in the first direction. In the technical solution of the embodiment, by arranging the heat conduction pipe 40 as the first heat conduction part 42 and the second heat conduction part 43 arranged in sequence along the first direction, when the user inserts the cigarette 1 into the insertion channel 41, the first heat conduction part 42 can be heated by the first heat generating unit 21. Therefore, the heat originally used to heat the whole pipe is now only used to heat the first heat conduction part 42. Therefore, the temperature rising rate is faster, and the waiting time for the first puff is shorter.
[0062] The electronic smoking set 100 provided by the embodiment of the present application comprises the heating module 10. The heating module 10 adopts the technical solution of the foregoing embodiment or all the technical solutions, and thus has the technical advantages of the foregoing embodiments or all the technical advantages.
[0063] The heating module and the electronic smoking set provided by the embodiment of the present application are described in detail above, and the principle and implementation manner of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation manner and application range of the present application can be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.
Claims
1. A heating module, characterized in that, The heating module comprises: a heat conduction pipe comprising a metal body and an insulating heat conduction layer arranged outside the metal body, an insertion channel being formed in the metal body; and a heating component arranged outside the metal body and spaced apart from the metal body by the insulating heat conduction layer.
2. The heating module of claim 1, wherein, The thickness of the insulating heat conduction layer is less than 0.1 mm.
3. The heating module of claim 1, wherein, The thermal conductivity of the insulating heat conduction layer is greater than 0.2 W / (m·K).
4. The heating module of claim 3, wherein, The heating module further comprises an isolation film arranged outside the heating component, the thermal conductivity of the isolation film being less than that of the insulating heat conduction layer.
5. The heating module of claim 4, wherein, The isolation film is coated with tpi glue, the heating component is bonded to the isolation film, and the isolation film is further bonded to the insulating heat conduction layer through the tpi glue.
6. The heating module of claim 3, wherein, The heating component comprises a heating circuit etched on the insulating heat conduction layer.
7. The heating module of claim 3, wherein, The insulating heat conduction layer is a zirconium oxide insulating heat conduction layer; or The insulating heat conduction layer is an aluminum oxide insulating heat conduction layer.
8. The heating module of claim 4, wherein, The isolation film is wound at least three layers outside the heating component.
9. The heating module of claim 1, wherein, The heating component comprises a first heating unit and a second heating unit arranged in sequence along a first direction, the first heating unit being used for heating a first smoking section of a cigarette, and the second heating unit being used for heating a second smoking section of the cigarette. The heat conduction pipe comprises a first heat conduction part corresponding to the first heating unit and a second heat conduction part corresponding to the second heating unit, and the first heat conduction part and the second heat conduction part are spaced apart in the first direction.
10. An electronic smoking set, characterized by The heating module comprises any one of claims 1 to 9. The heating module comprises any one of claims 1 to 9.