Heating module, prefabricated structure thereof and electronic smoking set

Abstract

The embodiment of the utility model provides a heating module, a prefabricated structure of the heating module and an electronic smoking set, and belongs to the technical field of electronic smoking sets, the prefabricated structure comprises a heat insulation film, a heating piece and a heat conduction piece, and the heat insulation film is provided with a first side and a second side which are oppositely arranged in the thickness direction of the heat insulation film; the heating sheet is arranged on the first side of the thermal insulation film; the heat conduction sheet is arranged on the first side of the heat insulation and insulation film, the heat conduction sheet and the heating sheet are arranged in a spaced mode in the length direction of the heat insulation and insulation film, and the heat conduction sheet is used for being wound into the inner wall of the heating sheet. In addition, the heating sheet and the heat conducting sheet are arranged on the heat insulation film, the heating module can be formed only through one-time rolling, and compared with an existing scheme, the number of rolling times can be reduced, and the manufacturing process of the heating module can be simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic smoking sets, and in particular to a heating module, a prefabricated structure thereof, 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 technical solution of heat-not-burn heating uses a circuit etched on a thin steel sheet and adheres the circuit to the outer wall of a metal tube, and the heat generated by the resistance wire is transmitted to the metal tube, and then the metal tube heats the cigarette.

[0004] Currently, for the metal tube, a metal tube produced in advance is used, and in the subsequent process, a first rolling is performed on the outside of the metal tube to roll an insulating layer, and then a second rolling is performed to roll a heating component and a spacer. Correspondingly, there are problems such as complex production process of the heating module, high production and transportation cost of the metal tube, thick thickness, and large heat loss in the heating process. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a heating module, a prefabricated structure thereof, and an electronic smoking set, aiming to solve the problem of complex production process of the existing heating module.

[0006] In one aspect, the present application provides a prefabricated structure of a heating module for manufacturing a heating module, the prefabricated structure comprising:

[0007] a heat-insulating and insulating film having a first side and a second side oppositely arranged in the thickness direction thereof;

[0008] a heating sheet arranged on the first side of the heat-insulating and insulating film; and

[0009] a heat-conducting sheet arranged on the first side of the heat-insulating and insulating film and spaced apart from the heating sheet in the length direction of the heat-insulating and insulating film, the heat-conducting sheet being used to wrap the inner wall of the heating sheet.

[0010] In some embodiments, the thickness of the heat-conducting sheet is less than or equal to 1 mm.

[0011] In some embodiments, the width of the heating sheet is b; the heat-insulating and insulating film has a first length edge in the length direction thereof, the heat-conducting sheet is mounted between the heating sheet and the first length edge; the distance between the heating sheet and the first length edge is a; and a > b.

[0012] In the heating module, the part between the heat-generating sheet and the first length edge is wound inside the heat-generating sheet.

[0013] In some embodiments, the heat-conducting sheet is spaced apart from the first length edge.

[0014] In some embodiments, the spacing between the heat-conducting sheet and the first length edge is c,

[0015] The spacing between the heat-conducting sheet and the heat-generating sheet is d, where c≥d.

[0016] In some embodiments, the heat-generating sheet has a width b; the heat insulation film has a second length edge in the length direction thereof; the distance between the heat-generating sheet and the second length edge is e; and e≥3b.

[0017] In the heating module, the part between the heat-generating sheet and the second length edge is wound outside the heat-generating sheet.

[0018] In some embodiments, the heat-generating sheet includes a first pin, a second pin, a third pin, a first heat-generating part, and a second heat-generating part; the first heat-generating part and the second heat-generating part are connected to the first pin; the second pin is connected to the first heat-generating part, and the third pin is connected to the second heat-generating part; the first heat-generating part and the second heat-generating part are bonded to the heat insulation film and are spaced apart in the width direction of the heat insulation film; the first pin, the second pin, and the third pin extend out of the width edge of the heat insulation film and are spaced apart in the length direction of the heat insulation film.

[0019] The first heat-generating part has a higher temperature rise rate than the second heat-generating part.

[0020] In some embodiments, the heat-conducting sheet includes a first heat-conducting part and a second heat-conducting part that are spaced apart in the width direction of the heat insulation film, where the first heat-conducting part corresponds to the first heat-generating part, and the second heat-conducting part corresponds to the second heat-generating part.

[0021] In another aspect, the embodiments of the present application provide a heating module wound from the prefabricated structure of the heating module as described in any of the above.

[0022] In another aspect, the embodiments of the present application provide an electronic smoking set including the heating module as described above.

[0023] This application provides a prefabricated structure for a heating module, in which a heating element and a heat-conducting element are disposed on a heat-insulating film. During the manufacturing process, the heat-insulating film can be directly rolled from the heat-conducting element to the heating element. During the rolling process, the heat-conducting element can be rolled into a heat-conducting tube. At this time, the heat-insulating film can also be attached to the outside of the heat-conducting tube. Then, the heating element can be attached to the heat-insulating film on the outside of the heat-conducting tube. Finally, the remaining heat-insulating film is rolled to the outside of the heating element, thereby forming the heating module. In this embodiment, the heating module can be formed by only one rolling process, which reduces the number of rolling processes and simplifies the manufacturing process of the heating module compared to existing solutions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the cigarette used in electronic cigarette devices;

[0026] Figure 2 This is a three-dimensional structural schematic diagram of an electronic cigarette device provided in some embodiments of this application;

[0027] Figure 3 This is an exploded view of the first embodiment of the prefabricated structure of the heating module of this application;

[0028] Figure 4 This is a top view of a first embodiment of the prefabricated structure of the heating module of this application;

[0029] Figure 5 This is a three-dimensional structural diagram of the first embodiment of the heating module of this application;

[0030] Figure 6 This is a top view of a second embodiment of the prefabricated structure of the heating module of this application.

[0031] Explanation of key component symbols:

[0032]

[0033] Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] 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," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0037] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0038] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0039] 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.

[0040] The technical scheme of heat-not-burn heating uses a loop etched on a thin steel sheet and adheres the loop to the outer wall of a metal tube, generates heat through a resistance wire to the metal tube, and then heats the cigarette through the inner wall of the metal tube.

[0041] Currently, for the metal tube, a metal tube that has been pre-rolled is used, and in the subsequent process, a first rolling is performed on the outside of the metal tube to roll an insulating layer, and then a second rolling is performed to roll a heating component and a spacer. Correspondingly, there are problems such as complex production process of the heating module, high production and transportation cost of the metal tube, thick thickness, poor heat conduction and heat distribution effect, etc.

[0042] For this purpose, please refer to Figures 1 to 6 In an embodiment of the present application, a pre-rolled structure 10 of a heating module 50 is provided for making a heating module 50, the pre-rolled structure 10 comprising a heat-insulating and insulating film 23, a heating sheet 20 and a heat-conducting sheet 40, the heat-insulating and insulating film 23 having a first side and a second side oppositely arranged in the thickness direction thereof; the heating sheet 20 is arranged on the first side of the heat-insulating and insulating film 23; the heat-conducting sheet 40 is arranged on the first side of the heat-insulating and insulating film 23 and is spaced apart from the heating sheet 20 in the length direction of the heat-insulating and insulating film 23, the heat-conducting sheet 40 being used to wrap the inner wall of the heating sheet 20.

[0043] The embodiment of the present application provides a pre-rolled structure 10 of a heating module 50, and a heating sheet 20 and a heat-conducting sheet 40 are arranged on a heat-insulating and insulating film 23. In the process of making, the heat-insulating and insulating film 23 can be directly rolled from the heat-conducting sheet 40 to the heating sheet 20. In the process of rolling, the heat-conducting sheet 40 can be rolled into a heat-conducting tube. At this time, the heat-insulating and insulating film 23 can also be attached to the outside of the heat-conducting tube. Then, the heating sheet 20 can be attached to the heat-insulating and insulating film 23 on the outside of the heat-conducting tube. Finally, the remaining heat-insulating and insulating film 23 is rolled outside the heating sheet 20, thereby forming the heating module 50. In the scheme of the embodiment, only one rolling is needed to form the heating module 50. Compared with the existing scheme, the number of rollings can be reduced, and the manufacturing process of the heating module 50 can be simplified.

[0044] It should be noted that the existing metal pipe is produced in advance, so it needs to be rolled separately, and the tubular metal pipe is not easy to transport during transportation, and the thickness of the metal pipe is relatively thick, a large part of the heat emitted by the heating sheet 20 is used to heat the metal pipe, resulting in large heat loss.

[0045] In the present application, the metal pipe is formed by rolling the heat-conducting sheet 40 together during the manufacture of the heating module 50 from the prefabricated structure 10, so during production and transportation, the heat-conducting sheet 40 can be transported, reducing the difficulty during production and transportation, and the thickness of the heat-conducting sheet 40 can be made thinner than that of the existing metal pipe, on the one hand facilitating rolling, and on the other hand reducing heat loss.

[0046] In the present embodiment, the heat-conducting sheet 40 can be made of metal or plastic, as long as it can provide good heat equalization and conduction, because the metal pipe is a commonly used heat-conducting pipe, so in the following examples, the metal pipe is taken as an example.

[0047] In the above embodiment, the heat-insulating and insulating film 23 can be a PI film (polyimide film) that has good heat conductivity, heat resistance, insulation, adhesion, radiation resistance, and can be used for a long time in the temperature range of the electronic smoking set 100, and the heating sheet 20 can be pressed and attached to the base film.

[0048] In some embodiments, the heat-insulating and insulating film 23 is coated with TPI glue, which has the characteristics of good wear resistance, aging resistance, corrosion resistance and insulation performance. Due to its excellent elasticity and recovery performance, TPI material can produce good buffering effect when subjected to external force, and by coating TPI glue, the adhesion between the heat-conducting sheet 40 and the heating sheet 20 and the heat-insulating and insulating film 23 can be achieved, avoiding the occurrence of bubbles between the heat-conducting sheet 40 and the heating sheet 20 and the heat-insulating and insulating film 23.

[0049] The specific implementation form of the heating sheet 20 is not limited, which can be a heating net, a carbon fiber heating body, a printed circuit, etc., which is not limited here, when the heating sheet 20 is a heating net or a carbon fiber heating body, it can be installed on the heat-insulating and insulating film 23 by hot pressing, and when the heating sheet 20 is a printed circuit, it can be directly printed on the heat-insulating and insulating film 23.

[0050] In the above embodiments, when the heating element 20 is a heating mesh, it can rapidly heat up when powered on in the heating module 50. Under the premise of ensuring battery current safety, the heating element 20 can carry more current, providing greater heating power and causing the temperature to rise rapidly. In summary, the initial resistance of the heating element 20 needs to be as small as possible while meeting safety requirements. For example, when using commonly used 18650 series batteries, the resistance can be configured between 0.4Ω and 1Ω.

[0051] The temperature control circuit of the heating element 20 needs to utilize the temperature coefficient of resistance of the metal to detect changes in the metal's resistance and thus control the temperature. Therefore, the material of the selected heating element 20 must have a relatively large temperature coefficient of resistance. At 20℃, its temperature coefficient of resistance (TCR) ≥ 1000. Commonly selected materials include: nickel-chromium alloy, nickel-iron alloy, stainless steel, iron-chromium-aluminum, titanium, and nickel.

[0052] In one embodiment, the thickness of the heat-conducting sheet 40 is less than or equal to 1 mm. Correspondingly, in this embodiment, the thickness of the heat-conducting sheet 40 is thinner than that of the existing metal tube. On the one hand, it is easier to roll and form, and on the other hand, it can reduce heat loss. Furthermore, when the heat-conducting sheet 40 is at its thinnest, it can be in the form of a metal film.

[0053] In a preferred embodiment described above, the width of the heating element 20 is b; the heat-insulating film 23 has a first length edge 234 in its length direction, and the heat-conducting sheet 40 is installed between the heating element 20 and the first length edge 234; the distance between the heating element 20 and the first length edge 234 is a; wherein a > b; wherein, when wound into a heating module 50, the portion between the heating element 20 and the first length edge 234 is wound inside the heating element 20.

[0054] like Figure 3 and Figure 4 As shown, during winding, the portion between the heating element 20 and the first length edge 234 is the second portion 232. The second portion 232 is wound into a cylindrical structure and located inside the heating element 20. The heat-conducting sheet 40 is bound by the cylindrical second portion 232, which also forms a heat-conducting tube. The distance between the heating element 20 and the first length edge 234 is set to be greater than the width, so that after winding, the heat insulation film 23 has a margin after a complete turn, thereby preventing short circuits in the heating part of the heating element 20 and preventing the ash from the cigarette 1 from entering the heating part. In some embodiments, the value of a (in mm) is greater than b (in mm) by 0 to 0.5 mm.

[0055] And, corresponding to this time, when the heat-conducting sheet 40 is a metal sheet or a metal film, the second part 232 between the heat-generating sheet 20 and the heat-conducting sheet 40 can also play a role of insulation between the heat-conducting sheet 40 and the heat-generating sheet 20, thereby avoiding the heat-generating sheet 20 being short-circuited by the heat-conducting sheet 40.

[0056] Further, in some embodiments, the heat-conducting sheet 40 is arranged in a spaced manner with the first length edge 234, corresponding to the technical solution in this embodiment, by arranging the heat-conducting sheet 40 in a spaced manner with the first length edge 234, so that after rolling, the part between the first length edge 234 and the heat-conducting sheet 40 can wrap the edge of the heat-conducting sheet 40, avoiding contact between the heat-conducting sheet 40 and the heat-generating sheet 20, causing the heat-generating sheet 20 to be short-circuited.

[0057] Further, in some embodiments, the spacing between the heat-conducting sheet 40 and the first length edge 234 is c, and the spacing between the heat-conducting sheet 40 and the heat-generating sheet 20 is d, wherein c≥d.

[0058] Corresponding to the technical solution in this embodiment, by setting the spacing between the heat-conducting sheet 40 and the first length edge 234 to be larger than the spacing between the heat-conducting sheet 40 and the heat-generating sheet 20, after rolling is completed, the heat insulation film 23 at the spacing between the heat-conducting sheet 40 and the first length edge 234 can fill the spacing between the heat-conducting sheet 40 and the heat-generating sheet 20, thereby avoiding contact between the heat-conducting sheet 40 and the heat-generating sheet 20 and short-circuiting.

[0059] It should be noted that c cannot be too much larger than d, too much, on the one hand, causing waste of raw materials, on the other hand, it will also affect the heat transfer of the heating module 50, resulting in large heat loss, therefore, in an embodiment, c is 0-1mm larger than d.

[0060] In some embodiments, the width of the heat-generating sheet 20 is b; the heat insulation film 23 has a second length edge 235 in the length direction; the distance between the heat-generating sheet 20 and the second length edge 235 is e; wherein e≥3b; wherein when rolled into a heating module 50, the part between the heat-generating sheet 20 and the second length edge 235 is rolled outside the heat-generating sheet 20.

[0061] Corresponding to the technical solution in this embodiment, by setting e to be more than three times the width of the heat-generating sheet 20, during rolling, the heat insulation film 23 can be rolled at least three times outside the heat-generating sheet 20, and at least three layers of heat insulation can be formed outside the heat-generating sheet 20, avoiding heat generated by the heat-generating sheet 20 from leaking, reducing heat loss.

[0062] And, need to explain, because the thickness of the heat conduction sheet 40 is thin, it is easy to deform, and the texture of the heat insulation film 23 is also soft, so the heating module 50 formed by winding is also easy to deform, and even can not stand up. In this embodiment, the heating sheet 20 is wound in multiple layers outside, which can improve the thickness and strength of the heating module 50, so that it can be erected and formed, and then assembled to the electronic smoking set 100.

[0063] In some embodiments, the heating sheet 20 includes a first pin 211, a second pin 212, a third pin 221, a first heating part 21 and a second heating part 22; the first heating part 21 and the second heating part 22 are connected with the first pin 211; the second pin 212 is connected with the first heating part 21, and the third pin 221 is connected with the second heating part 22; the first heating part 21 and the second heating part 22 are bonded on the heat insulation film 23 and are arranged in the width direction of the heat insulation film 23; the first pin 211, the second pin 212 and the third pin 221 extend out of the width edge of the heat insulation film 23 and are arranged in the length direction of the heat insulation film 23; wherein the temperature rising rate of the first heating part 21 is higher than that of the second heating part 22.

[0064] In the scheme of this embodiment, the heating sheet 20 includes a first heating part 21 and a second heating part 22, so that the heating can be realized in different areas, and the temperature rising rate is faster than that of the whole heating scheme, so that the smoke required by the user can be quickly generated.

[0065] And, the first heating part 21 and the second heating part 22 are connected with the first pin 211, so the width of the first pin 211 can be larger than that of the third pin 221 and the second pin 212, so that the resistance value of the first pin 211 can be smaller, and the heat generated by the first pin 211 is also smaller when the heating sheet 20 works. The second pin 212 is connected with the first heating part 21, and the third pin 221 is connected with the second heating part 22, so that the first pin 211 and the second pin 212 or the third pin 221 can be selectively turned on, so that the first heating part 21 or the second heating part 22 is worked, and the separate control of the first heating part 21 and the second heating part 22 is realized.

[0066] The temperature rising rate of the first heating part 21 is higher than that of the first heating part 21, so that when the user uses the electronic smoking set 100 to smoke, the cigarette 1 is placed into the electronic smoking set 100, and the first heating part 21 is used to quickly heat the local part of the cigarette 1, and the heat dissipation of the heating sheet 20 is reduced by the heat insulation film 23, so that the first puff of smoke is quickly generated, the waiting time of the user for the first puff of smoke is reduced, and compared with the overall heating scheme, the temperature rising rate of the scheme is fast, and the first puff of smoke can be quickly generated for the user.

[0067] Please refer to Figure 1 The cigarette 1 is divided into a smoking section, a cooling section and a filter section, the smoking section includes a first smoking section 11 close to the filter section and a second smoking section 12, in an embodiment, when the heating sheet 20 is used to heat the cigarette 1, the first heating part 21 is used to heat the part of the cigarette 1 close to the cigarette holder, that is, the first smoking section 11 is heated, and the second heating part 22 is used to heat the part of the cigarette 1 away from the cigarette holder, that is, the second smoking section 12 is heated. By such arrangement, the part heated by the first heating part 21 is close to the cigarette holder, and after smoking, the distance between the smoke and the cigarette holder is short, so that the user can quickly inhale the smoke. Specifically, the first heating part 21 is used to heat the first smoking section 11, so that the first smoking section 11 smokes quickly.

[0068] Please refer to Figure 6 In some embodiments, the heat conduction sheet 40 includes a first heat conduction part 41 and a second heat conduction part 42 arranged along the width direction of the heat insulation film 23, the first heat conduction part 41 is arranged corresponding to the first heating part 21, and the second heat conduction part 42 is arranged corresponding to the second heating part 22.

[0069] In the technical scheme of the embodiment, the heat conduction sheet 40 is arranged as the first heat conduction part 41 and the second heat conduction part 42 arranged along the width direction of the heat insulation film 23, at this time, the heat generated by the first heating part 21 is mainly gathered on the first heat conduction part 41, so that the temperature rising rate is faster, and the waiting time of the user for the first puff of smoke is reduced.

[0070] In addition, the mass and / or area of the first heat conduction part 41 can be smaller than those of the second heat conduction part 42, so that the first heat conduction part 41 can rise in temperature faster and heat more concentratedly.

[0071] Further, in an embodiment, the first heating part 21 and the second heating part 22 heat alternately, so that only one heating part in the heating module 50 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 part 21 and the second heating part 22 during heating. Correspondingly, the heating power of the first heating part 21 and the second heating part 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 heating the whole section now only heats the local part, greatly improving the smoking efficiency of the cigarette 1.

[0072] In a second aspect, the embodiment of the present application further provides a heating module 50, which is wound from the prefabricated structure 10 of the heating module 50 as described in the foregoing embodiments. Referring to FIG. 6, the prefabricated structure 10 of the heating module 50 is wound from the right side to the left side of the prefabricated structure 10 of the heating module 50 to form the heating module 50, as shown in FIG. 7. Figure 4 Figure 4 In some embodiments, the right side region of the heating sheet, i.e., the second part 232 of the heat insulation film 23, is the first part 231 of the heat insulation film 23 to which the region is attached, and the left side region of the heating sheet is the third part 233 of the heat insulation film 23. When winding, the second part 232 and the heat-conducting sheet 40 are pre-formed into a cylindrical structure, and then wound from right to left, thereby forming the heating module 50. After winding, the first heating part and the second heating part are between the first part 231 and the second part 232.

[0073] After winding, the length direction of the heat insulation film 23 is the circumferential direction of the heating module 50, and the width direction of the heat insulation film 23 is the axial direction of the heating module 50.

[0074] The embodiment of the present application further provides an electronic smoking set 100, which comprises the heating module 50. The heating module 50 adopts one or all of the technical solutions of the foregoing embodiments, and thus has the technical advantages of the foregoing embodiments.

[0075] The heating module, the prefabricated structure thereof, and the electronic smoking set provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation manners and application ranges can be changed according to the idea of the present application, and the above description should not be understood as limiting the present application.​

Claims

1. A preform structure of a heating module for manufacturing as a heating module, characterized in that, The heating module comprises: a heat insulation film having a first side and a second side arranged oppositely in the thickness direction of the heat insulation film; a heating sheet arranged on the first side of the heat insulation film; and a heat conduction sheet arranged on the first side of the heat insulation film and spaced apart from the heating sheet in the length direction of the heat insulation film, the heat conduction sheet being used to wrap the inner wall of the heating sheet. The thickness of the heat conduction sheet is less than or equal to 1 mm.

2. The preform structure of the heating module according to claim 1, characterized in that, The width of the heating sheet is b; the heat insulation film has a first length edge in the length direction, the heat conduction sheet is arranged between the heating sheet and the first length edge; the distance between the heating sheet and the first length edge is a; wherein a > b.

3. The preform structure of the heating module according to claim 1, characterized in that, When the heating module is wrapped, the part between the heating sheet and the first length edge is wrapped inside the heating sheet. The heat conduction sheet is spaced apart from the first length edge.

4. The preform structure of the heating module according to claim 3, characterized in that, The spacing between the heat conduction sheet and the first length edge is c, 5. The preform structure of the heating module according to claim 4, characterized in that, The spacing between the heat conduction sheet and the heating sheet is d, wherein c ≥ d. The width of the heating sheet is b; the heat insulation film has a second length edge in the length direction; the distance between the heating sheet and the second length edge is e; wherein e ≥ 3b; 6. The preform structure of the heating module according to claim 1, characterized in that, When the heating module is wrapped, the part between the heating sheet and the second length edge is wrapped outside the heating sheet. The heating sheet comprises a first pin, a second pin, a third pin, a first heating part and a second heating part; the first heating part and the second heating part are connected with the first pin; the second pin is connected with the first heating part, and the third pin is connected with the second heating part; the first heating part and the second heating part are bonded to the heat insulation film and are spaced apart in the width direction of the heat insulation film; the first pin, the second pin and the third pin extend out of the width edge of the heat insulation film and are spaced apart in the length direction of the heat insulation film.

7. The preform structure of the heating module according to claim 1, characterized in that, The temperature rising rate of the first heating part is higher than that of the second heating part. The heat conduction sheet comprises a first heat conduction part and a second heat conduction part spaced apart in the width direction of the heat insulation film, wherein the first heat conduction part corresponds to the first heating part, and the second heat conduction part corresponds to the second heating part.

8. The preform structure of the heating module according to claim 7, characterized in that, The heating module is wrapped from the prefabricated structure of the heating module according to any one of claims 1 to 8.

9. A heating module, characterized by The heating module comprises the heating module according to claim 9.

10. An electronic smoking set, characterized by ​

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