Heating module, prefabricated structure thereof and electronic smoking set

Abstract

The embodiment of the invention 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 devices, and in particular to a heating module and a prefabricated structure thereof and an electronic smoking device. Background Art

[0002] Heating without burning is a technology that uses special heating equipment to heat special "cigarette cartridges" or "cigarette sticks" at low temperatures until they emit smoke, avoiding the toxic and harmful substances produced by high-temperature combustion, while being able to experience a taste and flavor close to that of cigarettes.

[0003] The technical solution of heating without burning is to form a loop by etching on a thin steel sheet, and the loop is adhered to the outer wall of a metal tube. The heat is transferred to the metal tube through a resistance wire, and then the cigarette is heated through the inner wall of the metal tube.

[0004] At present, metal tubes are all produced in advance. In the subsequent process, the first rolling is performed on the outside of the metal tube to roll the insulation layer. After that, the second rolling is performed to roll the heating component and the isolation part. Correspondingly, there are problems such as complex production process of heating module, high production and transportation cost of metal tube, thick thickness, large heat loss during heating, etc. Summary of the invention

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

[0006] On the one hand, an embodiment of the present application provides a prefabricated structure of a heating module, which is used to make a heating module, and the prefabricated structure includes:

[0007] A heat-insulating film, the heat-insulating film having a first side and a second side disposed opposite to each other in a thickness direction thereof;

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

[0009] The heat conductive sheet is arranged on the first side of the heat insulating film and is spaced apart from the heat generating sheet in the length direction of the heat insulating film. The heat conductive sheet is used to be wound to form the inner wall of the heat generating sheet.

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

[0011] In some embodiments, the width of the heating sheet is b; the heat-insulating film has a first length edge in its length direction, and the heat-conducting sheet is installed 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;

[0012] When the heating module is wound into a heating module, the portion between the heating sheet and the first length edge is wound inside the heating sheet.

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

[0014] In some embodiments, the distance between the heat conductive sheet and the first length edge is c,

[0015] The distance between the heat conducting sheet and the heat generating sheet is d, wherein c≥d.

[0016] In some embodiments, the width of the heating sheet is b; the heat-insulating film has a second length edge in its length direction; the distance between the heating sheet and the second length edge is e; wherein e≥3b;

[0017] When the heating module is wound into a heating module, the portion between the heating sheet and the second length edge is wound outside the heating sheet.

[0018] In some embodiments, the heating sheet includes a first pin, a second pin, a third pin, a first heating portion, and a second heating portion; the first heating portion and the second heating portion are both connected to the first pin; the second pin is connected to the first heating portion, and the third pin is connected to the second heating portion; the first heating portion and the second heating portion are bonded to the thermal insulation film and are spaced apart along the width direction of the thermal insulation film; the first pin, the second pin, and the third pin extend out of the width edge of the thermal insulation film and are spaced apart along the length direction of the thermal insulation film;

[0019] Wherein, a temperature rise rate of the first heating portion is higher than a temperature rise rate of the second heating portion.

[0020] In some embodiments, the thermally conductive sheet includes a first thermally conductive portion and a second thermally conductive portion spaced apart along a width direction of the thermally insulating film, wherein the first thermally conductive portion is disposed corresponding to the first heat generating portion, and the second thermally conductive portion is disposed corresponding to the second heat generating portion.

[0021] On the other hand, an embodiment of the present application provides a heating module, which is formed by winding a prefabricated structure of the heating module as described in any one of the above.

[0022] On the other hand, an embodiment of the present application provides an electronic smoking device, comprising the heating module as described above.

[0023] The embodiment of the present application provides a prefabricated structure of a heating module, and arranges a heating sheet and a heat-conducting sheet on a heat-insulating film. During the manufacturing process, the heat-insulating film can be directly rolled from the heat-conducting sheet to the heating sheet. During the rolling process, the heat-conducting sheet 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 sheet can be attached to the heat-insulating film on the outside of the heat-conducting tube. Finally, the remaining heat-insulating film is rolled on the outside of the heating sheet to form the heating module. In the solution of this embodiment, only one rolling is required to form the heating module. Compared with the existing solution, the number of rolling times can be reduced, thereby simplifying the manufacturing process of the heating module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the cigarette used in the electronic smoking device;

[0026] Figure 2 is a schematic diagram of the three-dimensional structure of the electronic smoking device provided in some embodiments of the present application;

[0027] Figure 3 An exploded view of a first embodiment of the prefabricated structure of the heating module of the present application;

[0028] Figure 4 A top view of a first embodiment of the prefabricated structure of the heating module of the present application;

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

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

[0031] Description of main component symbols:

[0032]

[0033] DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[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 "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0038] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0039] Heating without burning is a technology that uses special heating equipment to heat special "cigarette cartridges" or "cigarette sticks" at low temperatures until they emit smoke, avoiding the toxic and harmful substances produced by high-temperature combustion, while being able to experience a taste and flavor close to that of cigarettes.

[0040] The technical solution of heating without burning is to form a loop by etching on a thin steel sheet, and the loop is adhered to the outer wall of a metal tube. The heat is transferred to the metal tube through a resistance wire, and then the cigarette is heated through the inner wall of the metal tube.

[0041] At present, metal tubes are all pre-rolled metal tubes. In the subsequent process, the first rolling is performed on the outside of the metal tube to roll the insulation layer. After that, the second rolling is performed to roll the heating components and the isolation parts. Correspondingly, there are problems such as complex production process of heating modules, high production and transportation costs of metal tubes, thick thickness, poor thermal conductivity and heat distribution effects.

[0042] For this, see Figures 1 to 6 In an embodiment of the present application, a prefabricated structure 10 of a heating module 50 is proposed, which is used to make a heating module 50. The prefabricated structure 10 includes a heat-insulating film 23, a heating sheet 20 and a heat-conducting sheet 40. The heat-insulating film 23 has a first side and a second side that are arranged opposite to each other in the thickness direction thereof; the heating sheet 20 is arranged on the first side of the heat-insulating film 23; the heat-conducting sheet 40 is arranged on the first side of the heat-insulating film 23, and is spaced apart from the heating sheet 20 in the length direction of the heat-insulating film 23, and the heat-conducting sheet 40 is used to be wound into the inner wall of the heating sheet 20.

[0043] The embodiment of the present application provides a prefabricated structure 10 of a heating module 50, and arranges a heating sheet 20 and a heat-conducting sheet 40 on a heat-insulating film 23. During the manufacturing process, the heat-insulating film 23 can be directly rolled from the heat-conducting sheet 40 to the heating sheet 20. During the rolling process, the heat-conducting sheet 40 can be rolled into a heat-conducting tube. At this time, the heat-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 film 23 on the outside of the heat-conducting tube. Finally, the remaining heat-insulating film 23 is rolled on the outside of the heating sheet 20 to form the heating module 50. In the solution of this embodiment, only one rolling is required to form the heating module 50. Compared with the existing solution, the number of rolling times can be reduced, thereby simplifying the manufacturing process of the heating module 50.

[0044] It should be noted that the existing metal tubes are all produced in advance, so they need to be rolled separately. During the transportation process, the tubular metal tubes are not easy to transport, and the thickness of the metal tubes is relatively thick. During the heating process, a large part of the heat emitted by the heating plate 20 is used to heat the metal tube, resulting in a large heat loss.

[0045] In the present application, the metal tube is rolled together with the heat conductive sheet 40 during the process of manufacturing the heating module 50 in the prefabricated structure 10. Therefore, during the production and transportation process, the heat conductive sheet 40 can be transported, which reduces the difficulty in the production and transportation process. In addition, the thickness of the heat conductive sheet 40 can be made thinner than that of the existing metal tube, which is convenient for rolling on the one hand, and can reduce heat loss on the other hand.

[0046] Corresponding to the present embodiment, the heat conductive sheet 40 can be made of metal material or plastic material, as long as it can play a good role in heat distribution and heat conduction. Because metal tubes are currently commonly used heat conductive tubes, metal tubes are used as examples in the following.

[0047] In the above embodiment, the heat-insulating film 23 can be a PI film (polyimide film), which has good thermal conductivity, heat resistance, insulation, adhesion, and radiation resistance, and can be used for a long time within the temperature range of the electronic cigarette device 100. The heating sheet 20 can be pressed onto the base film.

[0048] In some embodiments, the thermal insulation film 23 is coated with TPI glue, and the characteristics of TPI material are its good wear resistance, aging resistance, corrosion resistance and insulation performance. Due to its excellent elasticity and recovery performance, TPI material can produce a good buffering effect when subjected to external force. By coating TPI glue, the thermal conductive sheet 40 can be bonded to the heating sheet 20 and the thermal insulation film 23, avoiding the formation of bubbles between the thermal conductive sheet 40, the heating sheet 20 and the thermal insulation film 23.

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

[0050] In the above embodiment, when the heating sheet 20 is a heating net, in the heating module 50, the heating sheet 20 can heat up quickly when powered on; under the premise of meeting the battery current safety, the heating sheet 20 can pass more current and provide greater heating power to quickly increase the temperature. In summary, the initial resistance of the heating sheet 20 needs to be as small as possible under the premise of meeting safety. For example, when using the commonly used 18650 series batteries, the resistance can be configured to be between 0.4Ω-1Ω.

[0051] The temperature control circuit of the heating sheet 20 needs to use the resistance temperature coefficient of the metal to detect the change in the resistance value of the metal to achieve temperature control. Therefore, the material of the heating sheet 20 selected must have a relatively large resistance temperature coefficient. At 20°C, its resistance temperature coefficient (TCR) is ≥1000. Generally, the materials that can be selected are: nickel-chromium alloy, nickel-iron alloy, stainless steel, iron-chromium-aluminum, titanium metal, and nickel metal.

[0052] In one embodiment, the thickness of the heat conductive sheet 40 is less than or equal to 1 mm. Correspondingly, in this embodiment, the thickness of the heat conductive sheet 40 is thinner than the thickness of the existing metal tube. On the one hand, it is convenient for rolling and forming, and on the other hand, it can reduce heat loss. When the heat conductive sheet 40 is the thinnest, it can be in the form of a metal film.

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

[0054] like Figure 3 and Figure 4 As shown, during winding, the portion between the heating sheet 20 and the first length edge 234 is the second portion 232, and the second portion 232 is wound into a cylindrical structure, which is located inside the heating sheet 20, and the heat conductive sheet 40 is bound by the cylindrical second portion 232 to form a heat conductive tube; the distance between the heating sheet 20 and the first length edge 234 is set to be greater than the width, so that after winding, the heat insulating film 23 has a surplus after completing a full circle, thereby avoiding a short circuit in the heating portion of the heating sheet 20 and preventing the ash of the cigarette 1 from entering the heating portion. In some embodiments, the value of a (in mm) is greater than b (in mm) by 0 to 0.5 mm.

[0055] Furthermore, at this time, when the thermally conductive sheet 40 is a metal sheet or a metal film, the second portion 232 located between the heat generating sheet 20 and the thermally conductive sheet 40 can also serve as an insulator between the heat generating sheet 20 and the heat generating sheet 20, thereby preventing the heat generating sheet 20 from being short-circuited by the thermally conductive sheet 40.

[0056] Furthermore, in some embodiments, the thermally conductive sheet 40 and the first length edge 234 are spaced apart. Correspondingly, in the technical solution of the present embodiment, the thermally conductive sheet 40 and the first length edge 234 are spaced apart so that after rolling, the portion spaced apart from the first length edge 234 and the thermally conductive sheet 40 can wrap around the edge of the thermally conductive sheet 40 to avoid contact between the thermally conductive sheet 40 and the heating sheet 20, thereby preventing the heating sheet 20 from short-circuiting.

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

[0058] In the technical solution corresponding to the present embodiment, by setting the interval between the thermally conductive sheet 40 and the first length edge 234 to be larger than the interval between the thermally conductive sheet 40 and the heating sheet 20, after the rolling is completed, the thermal insulation film 23 at the interval between the thermally conductive sheet 40 and the first length edge 234 can fill the interval between the thermally conductive sheet 40 and the heating sheet 20, thereby avoiding short circuit due to contact between the thermally conductive sheet 40 and the heating sheet 20.

[0059] It should be noted that c cannot be much larger than d. If it is too large, it will not only cause waste of raw materials, but also affect the heat transfer of the heating module 50, resulting in greater heat loss. Therefore, in one embodiment, c is 0 to 1 mm larger than d.

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

[0061] In the technical solution corresponding to the present embodiment, by setting e to more than three times the width value of the heating sheet 20, when winding, the thermal insulation film 23 can be wound around the outside of the heating sheet 20 at least three times, and can form at least three layers of thermal insulation on the outside of the heating sheet 20, thereby preventing the heat generated by the heating sheet 20 from leaking out and reducing heat loss.

[0062] Furthermore, it should be noted that, since the thickness of the heat conductive sheet 40 is relatively thin, it is easy to deform, and the texture of the heat insulating film 23 is also relatively soft. Thus, the heating module 50 formed by winding is also easy to deform, and may even fail to stand up. Correspondingly, in this embodiment, multiple layers of winding are performed on the outside of the heating sheet 20, which can increase the thickness and strength of the heating module 50, allowing it to stand up and be formed, making it easier to assemble it onto the electronic cigarette device 100 later.

[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 both connected to the first pin 211; the second pin 212 is connected to the first heating part 21, and the third pin 221 is connected to the second heating part 22; the first heating part 21 and the second heating part 22 are bonded to the thermal insulation film 23, and are spaced apart along the width direction of the thermal insulation film 23; the first pin 211, the second pin 212 and the third pin 221 extend out of the width edge of the thermal insulation film 23, and are spaced apart along the length direction of the thermal insulation film 23; wherein the heating rate of the first heating part 21 is higher than the heating rate of the second heating part 22.

[0064] Corresponding to the solution of this embodiment, the heating sheet 20 includes a first heating part 21 and a second heating part 22, so that zoned heating can be achieved. Compared with the overall heating solution, the heating rate is faster and the smoke required for the user to inhale can be quickly generated.

[0065] Moreover, the first heating part 21 and the second heating part 22 are both connected to the first pin 211. Therefore, the width of the first pin 211 can be made 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. When the heating sheet 20 is working, the heat generated by the first pin 211 is also less. The second pin 212 is connected to the first heating part 21, and the third pin 221 is connected to the second heating part 22. 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 can be operated accordingly, thereby realizing separate control of the first heating part 21 and the second heating part 22.

[0066] Among them, the heating rate of the first heating part 21 is higher than the heating rate of the first heating part 21, so that when the user uses the electronic smoking device 100 for inhalation, the cigarette 1 is placed in the electronic smoking device 100, and when the heating module is used for heating, the first heating part 21 can be used to quickly heat up a part of the cigarette 1, and the heating sheet 20 can be insulated by the heat-insulating film 23 to reduce the heat loss of the heating sheet 20, thereby quickly producing the first puff of cigarette and reducing the waiting time for the user to take the first puff of cigarette. Compared with the overall heating solution, the solution of the present application has a fast heating rate and can quickly produce the first puff of cigarette for the user.

[0067] Please also read 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 and a second smoking section 12 close to the filter section. In one embodiment, when the heating sheet 20 is used to heat the cigarette 1, the first heating portion 21 is used to heat the portion of the cigarette 1 close to the cigarette holder, that is, to heat the first smoking section 11, and the second heating portion 22 is used to heat the portion of the cigarette 1 away from the cigarette holder, that is, to heat the second smoking section 12. In this way, the portion heated by the first heating portion 21 is the portion close to the cigarette holder. After smoking, the distance between the smoke and the cigarette holder is short, and the user can quickly inhale the smoke when inhaling. Specifically, the first heating portion 21 is used to heat the first smoking section 11, so that the first smoking section 11 can smoke quickly.

[0068] See also Figure 6 In some embodiments, the heat conductive sheet 40 includes a first heat conductive portion 41 and a second heat conductive portion 42 spaced apart along the width direction of the heat insulating film 23 , wherein the first heat conductive portion 41 is arranged corresponding to the first heat generating portion 21 , and the second heat conductive portion 42 is arranged corresponding to the second heat generating portion 22 .

[0069] In the technical solution corresponding to the present embodiment, the heat-conducting sheet 40 is arranged as a first heat-conducting portion 41 and a second heat-conducting portion 42 which are arranged at intervals along the width direction of the heat-insulating film 23. At this time, when the first heating portion 21 generates heat, the heat is mainly concentrated on the first heat-conducting portion 41, so that the temperature can be raised faster, especially the waiting time for the user's first puff of cigarette can be reduced.

[0070] In addition, the mass and / or area of ​​the first heat conducting part 41 may be smaller than the mass and / or area of ​​the second heat conducting part 42 , so that the first heat conducting part 41 can heat up faster and generate heat more concentratedly.

[0071] Furthermore, in one embodiment, the first heating part 21 and the second heating part 22 generate heat alternately. In this configuration, only one heating part in the heating module 50 generates heat at a time, so that during the heating process, the power supply of the electronic smoking device 100 only needs to supply power to one of the first heating part 21 and the second heating part 22. Correspondingly, the heating power of the first heating part 21 and the second heating part 22 can be made consistent with, or similar to, the heating power of the existing whole-section heating unit, so that the heating power that originally heated the entire section can now only heat a part, thereby greatly improving the smoking efficiency of the cigarette 1.

[0072] In a second aspect, the present application also provides a heating module 50, wherein the heating module 50 is formed by winding the prefabricated structure 10 of the heating module 50 described in the previous embodiment. Figure 4 As shown, the prefabricated structure 10 of the heating module 50 is wound from the right side to the left side to form the heating module 50, as shown in FIG. Figure 4 As shown. In some embodiments, the right side area of ​​the heating sheet is the second part 232 of the heat-insulating film 23, and the area pressed against it is the first part 231 of the heat-insulating film 23, and the area on the left side of the heating sheet is the third part 233 of the heat-insulating film 23. When winding, the second part 232 and the heat-conducting sheet 40 are pre-formed into a cylindrical structure of one circle, and then wound from right to left to form 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 is completed, the length direction of the thermal insulation film 23 is the circumferential direction of the heating module 50 , and the width direction of the thermal insulation film 23 is the axial direction of the heating module 50 .

[0074] The embodiment of the present application further provides an electronic smoking device 100, which includes a heating module 50. The heating module 50 adopts part of the technical solutions of the above embodiments, or all of the technical solutions, and thus has the technical advantages or all of the technical advantages of the above embodiments.

[0075] The heating module and its prefabricated structure and electronic smoking device provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A prefabricated structure of a heating module, used to make a heating module, characterized in that: include: A heat-insulating film, the heat-insulating film having a first side and a second side disposed opposite to each other in a thickness direction thereof; A heating sheet is arranged on the first side of the heat-insulating film; as well as, The heat conductive sheet is arranged on the first side of the heat insulating film and is spaced apart from the heat generating sheet in the length direction of the heat insulating film. The heat conductive sheet is used to be wound to form the inner wall of the heat generating sheet.

2. The prefabricated structure of the heating module according to claim 1, characterized in that: The thickness of the heat conducting sheet is less than or equal to 1 mm.

3. The prefabricated structure of the heating module according to claim 1, characterized in that: The width of the heating sheet is b; the heat-insulating film has a first length edge in its length direction, and the heat-conducting sheet is installed 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; When the heating module is wound into a heating module, the portion between the heating sheet and the first length edge is wound inside the heating sheet.

4. The prefabricated structure of the heating module according to claim 3, characterized in that: The heat conducting sheet is spaced apart from the first length edge.

5. The prefabricated structure of the heating module according to claim 4, characterized in that: The distance between the heat conducting sheet and the first length edge is c, The distance between the heat conducting sheet and the heat generating sheet is d, wherein c≥d.

6. The prefabricated structure of the heating module according to claim 1, characterized in that: The width of the heating sheet is b; the heat-insulating film has a second length edge in its length direction; the distance between the heating sheet and the second length edge is e; wherein e≥3b; When the heating module is wound into a heating module, the portion between the heating sheet and the second length edge is wound outside the heating sheet.

7. The prefabricated structure of the heating module according to claim 1, characterized in that: 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 both connected to the first pin; the second pin is connected to the first heating part, and the third pin is connected to the second heating part; the first heating part and the second heating part are bonded to the thermal insulation film and are arranged at intervals along the width direction of the thermal insulation film; the first pin, the second pin and the third pin extend out of the width edge of the thermal insulation film and are arranged at intervals along the length direction of the thermal insulation film; Wherein, a temperature rise rate of the first heating portion is higher than a temperature rise rate of the second heating portion.

8. The prefabricated structure of the heating module according to claim 7, characterized in that: The heat conducting sheet includes a first heat conducting portion and a second heat conducting portion which are spaced apart along a width direction of the heat insulating film, wherein the first heat conducting portion is arranged corresponding to the first heat generating portion, and the second heat conducting portion is arranged corresponding to the second heat generating portion.

9. A heating module, characterized in that: The heating module is formed by winding the prefabricated structure of the heating module according to any one of claims 1 to 8.

10. An electronic smoking device, characterized in that: Includes the heating module described in claim 9.

Images