Heating module and electronic smoking set

Abstract

The embodiment of the invention provides a heating module and an electronic smoking set, and belongs to the technical field of electronic smoking sets, the heating module comprises a heating assembly, the heating assembly comprises a first heating unit and a second heating unit which are sequentially arranged in the first direction, the first heating unit is used for heating a first smoke generation section of a cigarette, and the second heating unit is used for heating a second smoke generation section of the cigarette. The second heating unit is used for heating a second fuming section of the cigarette, and the coverage area of the first heating unit is smaller than that of the second heating unit; wherein the rated heating power of the heating assembly is a, the rated heating power of the first heating unit is b, and b is larger than or equal to 0.5 a. In the embodiment of the invention, at least half of heat can be used for fuming the first fuming section with a smaller area, so that the fuming efficiency of the first fuming section can be improved, and the smoking waiting time of a user is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of electronic smoking devices, and in particular to a heating module 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 heating-without-burning technology uses a circuit etched on a thin steel sheet and adheres the circuit to the outer wall of a metal tube. The heat is transmitted to the metal tube through a resistance wire, and then the cigarette is heated through the inner wall of the metal tube. However, in this technology, the entire cigarette is heated, and the heating rate is slow. In this process, if the cigarette needs to be heated to the smoking temperature, the user has to wait for a long time. Summary of the invention

[0004] The embodiments of the present application provide a heating module and an electronic smoking device, which aim to improve the heating rate of the existing heating module.

[0005] On the one hand, an embodiment of the present application provides a heating module, including:

[0006] A heating component, the heating component comprising a first heating unit and a second heating unit sequentially arranged along a first direction, wherein the first heating unit is used to heat a first smoking segment of the cigarette, the second heating unit is used to heat a second smoking segment of the cigarette, and the coverage area of ​​the first heating unit is smaller than the coverage area of ​​the second heating unit;

[0007] The rated heating power of the heating component is a, and the rated heating power of the first heating unit is b, wherein b≥0.5a.

[0008] In some embodiments, the first heating unit and the second heating unit have the same heating power; and / or,

[0009] The rated heating power of the first heating unit and / or the second heating unit is a.

[0010] In some embodiments, a coverage area of ​​the first heating unit is less than half of a coverage area of ​​the second heating unit.

[0011] In some embodiments, the heating module further comprises a heat conducting pipe, the first heating unit comprises a first resistance wire, and the first resistance wire surrounds the outer side of the heat conducting pipe along the circumference of the heat conducting pipe; and / or,

[0012] The second heating unit includes a plurality of second resistance wires arranged in parallel, and the second resistance wires are bent back and forth in the circumferential direction of the heat conducting pipe.

[0013] In some embodiments, the first heating unit and the second heating unit are arranged in parallel; and / or,

[0014] The first heating unit and the second heating unit generate heat alternately.

[0015] In some embodiments, the heating module further includes a heat conducting pipe, the heat conducting pipe includes a first heat conducting portion and a second heat conducting portion sequentially arranged along a first direction, the first heating unit is wound around the first heat conducting portion, and the second heating unit is wound around the second heat conducting portion;

[0016] Wherein, a size of the first heat conducting portion in the first direction is smaller than a size of the second heat conducting portion in the first direction.

[0017] In some embodiments, the heating component is a heating net, a carbon fiber heating element, or a printed circuit.

[0018] In some embodiments, the heating component is a heating net, the isolation piece is coated with tpi glue, and the heating net is bonded to the isolation piece through the tpi glue.

[0019] In some embodiments, the heating module further comprises a heat conducting tube, wherein the heat conducting tube has an insertion channel suitable for inserting a cigarette;

[0020] The heating component is arranged on the outside of the heat pipe;

[0021] The isolating member comprises a heat-insulating film, wherein the heat-insulating film comprises a first film segment located between the heat-conducting pipe and the heat-generating component and a second film segment located outside the heat-generating component;

[0022] The first film segment surrounds the outer side of the heat conducting tube for one circle, and the second film segment surrounds the outer side of the heat conducting tube for at least three circles.

[0023] The embodiment of the present application further provides an electronic smoking device, which includes the heating module as described above.

[0024] In the embodiment of the present application, the heating component is arranged into a first heating unit and a second heating unit which are arranged in sequence along a first direction, and the coverage area of ​​the first heating unit is smaller than the coverage area of ​​the second heating unit, and the rated heating power of the first heating unit is greater than or equal to half of the total heating power of the heating component. Therefore, in actual use, at least half of the heat can be used to smoke the first smoking segment with a smaller area, thereby improving the smoking efficiency of the first smoking segment and reducing the user's waiting time for inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a schematic diagram of the structure of the cigarette used in the electronic smoking device;

[0027] Figure 2 is a schematic diagram of the three-dimensional structure of the electronic smoking device provided in some embodiments of the present application;

[0028] Figure 3 yes Figure 2 A cross-sectional view of an electronic smoking device;

[0029] Figure 4 An exploded view of a first embodiment of a heating module provided in the present application;

[0030] Figure 5 An exploded view of a second embodiment of a heating module provided by the present application;

[0031] Figure 6 A schematic structural diagram of a first embodiment of a heating component provided in the present application;

[0032] Figure 7 A schematic structural diagram of a second embodiment of a heating component provided in the present application;

[0033] Figure 8 This is a schematic assembly diagram of an embodiment of a heating component and an isolation member provided in the present application.

[0034] Description of main component symbols:

[0035]

[0036] DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The heating-without-burning technology uses a circuit etched on a thin steel sheet and adheres the circuit to the outer wall of a metal tube. The heat is transmitted to the metal tube through a resistance wire, and then the cigarette is heated through the inner wall of the metal tube. However, in this technology, the entire cigarette is heated, and the heating rate is slow. In this process, if the cigarette needs to be heated to the smoking temperature, the user has to wait for a long time.

[0044] See also Figures 2 to 8 In this regard, an embodiment of the present application provides a heating module 10, including a heating component 20, wherein the heating component 20 includes a first heating unit 21 and a second heating unit 22 arranged in sequence along a first direction, wherein the first heating unit 21 is used to heat the first smoking segment 11 of the cigarette 1, and the second heating unit 22 is used to heat the second smoking segment 12 of the cigarette 1, and the coverage area of ​​the first heating unit 21 is smaller than the coverage area of ​​the second heating unit 22; wherein the rated heating power of the heating component 20 is a, and the rated heating power of the first heating unit 21 is b, wherein b≥0.5a.

[0045] It should be noted that the first heating unit 21 and the second heating unit 22 are arranged sequentially in the first direction. The first heating unit 21 may be arranged closely in the first direction, or may be arranged at intervals, which is not limited here. The specific implementation form of the first heating unit 21 and / or the second heating unit 22 is not limited, and may be in the form of a heating net, a printed circuit, a carbon fiber heating element, etc., which is not limited here.

[0046] It should be emphasized that b≥0.5a, b can be any value between 0.5a and a, such as 0.5a, 1a, 0.6a, etc., which is not limited here, and the specific value of the second heating unit 22 is not limited. The rated heating power of the second heating unit 22 is c. When the second heating unit 22 and the first heating unit 21 can generate heat at the same time, the sum of the rated heating power c of the second heating unit 22 and the rated heating power b of the first heating unit 21 is a, that is, the value of c is between 0 and 0.5a. Of course, it can also be the sum of the rated heating power b of the first heating unit 21 and the rated heating power c of the second heating unit 22. The two can be heated alternately. Correspondingly, at this time, the rated heating power c of the second heating unit 22 can be between 0 and a. In summary, the value of b is 0.5a~a, and the value of c is 0~a. The relationship between b and c can be b greater than c, b less than c, or b equal to c, etc., which is not limited here. The heating rates of the first heating unit 21 and the second heating unit 22 can be the same or different. At different times, the first heating unit 21 can be smaller than the second heating unit 22, or larger than the second heating unit 22, etc., which is not limited here. The coverage area of ​​the first heating unit 21 refers to the coverage area of ​​the first heating unit 21 on the cigarette 1. Similarly, the coverage area of ​​the second heating unit 22 refers to the coverage area of ​​the second heating unit 22 on the cigarette 1. The value range of a is not limited, and can be consistent with the heating power of the heating component 20 of the existing electronic cigarette device 100. Specifically, the value range of a is between 3 and 200w, which is not limited here.

[0047] Specifically, the initial resistance of the heating unit needs to be as small as possible while ensuring safety. For example, when using commonly used 18650 series batteries, the resistance can be configured to be between 0.4Ω and 1Ω.

[0048] 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. The first heating unit 21 is used to heat the first smoking section 11 of the cigarette 1, and the second heating unit 22 is used to heat the second smoking section 12 of the cigarette 1. In this way, the first heating unit 21 heats the first smoking section 11, and the generated smoke is close to the cigarette holder, so that the user can inhale it quickly.

[0049] In the embodiment of the present application, the heating component 20 is arranged into a first heating unit 21 and a second heating unit 22 which are arranged in sequence along a first direction, and the coverage area of ​​the first heating unit 21 is smaller than the coverage area of ​​the second heating unit 22, and the rated heating power of the first heating unit 21 is greater than or equal to half of the total heating power of the heating component 20. Therefore, in actual use, at least half of the heat can be used to smoke the first smoking segment 11 with a smaller area, thereby improving the smoking efficiency of the first smoking segment 11 and reducing the user's waiting time for inhalation.

[0050] Furthermore, in one embodiment, the heating power of the first heating unit 21 and the second heating unit 22 are the same. Correspondingly, in this embodiment, by designing the heating power of the first heating unit 21 and the second heating unit 22 to be the same, in the actual design process, the coverage area of ​​the first heating unit 21 and the second heating unit 22 can be directly adjusted, thereby adjusting the heating rate of the first heating unit 21 and the second heating unit 22, thereby reducing the design difficulty of designers.

[0051] Specifically, the heating power of the first heating unit 21 and the second heating unit 22 are the same. In an embodiment where the first heating unit 21 and the second heating unit 22 are heated at the same time, the first heating unit 21 and the second heating unit 22 may both be 0.5a. At this time, the first heating unit 21 and the second heating unit 22 together constitute the rated heating power of the heating component 20.

[0052] Of course, the rated heating power of the first heating unit 21 and / or the second heating unit 22 may be equal to a. At this time, the first heating unit 21 and the second heating unit 22 are heated alternately and can both reach the rated power of the heating component 20. At this time, the heating rate of the first heating unit 21 is the fastest, which is equivalent to the power originally used to heat the entire cigarette 1, but now it is only used to heat the part less than half of the cigarette 1, which greatly improves the smoking efficiency of the cigarette 1. When the user uses the electronic smoking device 100, after inserting the cigarette 1 into the insertion channel 41 of the electronic smoking device 100, the first heating unit 21 may be used to heat first, so that the first smoking section 11 can smoke quickly, shortening the user's waiting time for the first puff of cigarette. Of course, it may also be that after detecting that the user has completed one puff, the first heating unit 21 is allowed to heat up and quickly generate a part of the smoke first, which is convenient for the user's next puff and reduces the interval time between two puffs of the user.

[0053] Furthermore, in one embodiment, the coverage area of ​​the first heating unit 21 is less than half of the coverage area of ​​the second heating unit 22. Correspondingly, at this time, the coverage area of ​​the first heating unit 21 is much smaller than the coverage area of ​​the second heating unit 22. Therefore, the first heating unit 21 can heat the cigarette 1 more concentratedly, and the smoking efficiency of the first smoking section 11 is higher.

[0054] For details, please refer to Figure 7 In one embodiment, the heating module 10 further includes a heat-conducting tube 40, and the first heating unit 21 includes a first resistance wire 213, and the first resistance wire 213 surrounds the outer side of the heat-conducting tube 40 along the circumference of the heat-conducting tube 40. In the scheme of this embodiment, the first heating unit 21 is composed of the first resistance wire 213, and the first resistance wire 213 surrounds the outer side of the heat-conducting tube 40 along the circumference of the heat-conducting tube 40. At this time, the axial size of the first heating unit 21 in the cigarette 1 can be controlled within 20 percent of the smoking section, so that the first smoking section 11 just corresponds to the amount of smoke produced by a puff of smoke. In actual use, the first smoking section 11 can be heated by the first heating unit 21 first to produce a first puff of smoke. At this time, the production rate of the first puff of smoke is the fastest, and in the subsequent inhalation stage, the first heating unit 21 no longer generates heat, and the second heating unit 22 generates heat instead, thereby avoiding dry burning and quickly producing the first puff of smoke.

[0055] In addition, the second heating unit 22 includes a plurality of second resistance wires 223 arranged in parallel, and the second resistance wires 223 are bent back and forth in the circumferential direction of the heat-conducting tube 40. Corresponding to the technical solution of this embodiment, the second heating unit 22 includes a plurality of second resistance wires 223 arranged in parallel, which can improve the uniformity of the heating of the second heating unit 22, and the solution of multiple second resistance wires 223 can make the coverage area of ​​the second heating unit 22 larger than the solution of a single resistance wire. In particular, the second resistance wire 223 is bent back and forth in the circumferential direction of the heat-conducting tube 40, which can further increase the coverage area of ​​the second heating unit 22 and allow it to heat more parts of the cigarette 1 to produce smoke.

[0056] The first heating unit 21 and the second heating unit 22 can be arranged in series or in parallel. When arranged in series, the two must be turned on or off at the same time. Therefore, in a further embodiment, the first heating unit 21 and the second heating unit 22 are arranged in parallel. Corresponding to the technical solution of this 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 controlled independently of each other, and each can be independently turned on and off.

[0057] Furthermore, in one embodiment, the first heating unit 21 and the second heating unit 22 generate heat alternately. In this configuration, only one heating unit in the heating module 10 generates heat at a time, so that during the heating process, the power supply of the electronic cigarette device 100 only needs to supply power to one of the first heating unit 21 and the second heating unit 22. Correspondingly, the heating power of the first heating unit 21 and the second heating unit 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 is now only used to heat a part, which greatly improves the smoking efficiency of the cigarette 1.

[0058] In addition, in some embodiments, the heating module 10 also includes a heat-conducting pipe 40, and the heat-conducting pipe 40 includes a first heat-conducting part 42 and a second heat-conducting part 43 arranged in sequence along a first direction, the first heating unit 21 is wound around the first heat-conducting part 42, and the second heating unit 22 is wound around the second heat-conducting part 43; wherein, the size of the first heat-conducting part 42 in the first direction is smaller than the size of the second heat-conducting part 43 in the first direction. Corresponding to the technical solution of this embodiment, by arranging the heat-conducting pipe 40 into the first heat-conducting part 42 and the second heat-conducting part 43 arranged at intervals along the first direction, when the user inserts the cigarette 1 into the insertion channel 41, the first heat-conducting part 42 can be heated by the first heating unit 21. Therefore, the heat originally used to heat the entire tube is now only used to heat the first heat-conducting part 42. Therefore, the heating rate is faster and the waiting time for the first puff of cigarette is shorter.

[0059] It is understandable that in the existing scheme of heating using the entire tube and the entire heating component, the heating component starts heating by first heating the entire tube. In this process, the entire tube will play a role in heat conduction and heat distribution. Therefore, the temperature of each part of the entire tube will be roughly the same. It takes a long time to heat the entire tube to the smoking temperature of the cigarette 1, and the efficiency is low. Under the same other conditions, the mass of the first heat conducting part 42 is less than the mass of the second heat conducting part 43. When the same amount of heat is used for heating, the first heat conducting part 42 is bound to be heated to a higher temperature, and the heating rate of the first heat conducting part 42 is faster, so that the user's waiting time for the first puff of cigarette is shorter.

[0060] Furthermore, in one embodiment, the size of the first heat-conducting portion 42 in the first direction is smaller than the size of the second heat-conducting portion 43 in the first direction. With this arrangement, the first heat-conducting portion 42 has a smaller heating area for the cigarette 1, a faster heating rate, and a shorter waiting time for the user to take the first puff of cigarette.

[0061] The specific implementation form of the heating component 20 is not limited, and it can be a heating net, a carbon fiber heating element, a printed circuit, etc. Specifically, the carbon fiber heating element is a tubular heating element made of carbon fiber as the basic heating material, which uses a reflective surface to dissipate heat, and the electric heat conversion rate is over 95%, which is 30% more energy-efficient than using nickel-chromium, tungsten-molybdenum and other materials as heating elements. When the isolation member 23 is a PI film, the heating component 20 can also be a printed circuit, so that the printed circuit is printed on the PI film, and the printed PI film is wrapped around the outside of the heat conductor to form the heating module.

[0062] Furthermore, the heating component 20 is a heating net, and the heating module 10 also includes an isolation member 23, which is at least sleeved on the outside of the heating component 20, and the isolation member 23 is coated with tpi glue, and the heating net is bonded to the isolation member 23 through the tpi glue.

[0063] TPI glue has thermoplasticity and good insulation properties, and the bonding form can tightly combine the heat pipe 40, the heating component 20 and the isolation member 23 together, effectively avoiding the generation of bubbles and preventing the bubbles from expanding due to heat and affecting the stability of the heating module 10.

[0064] Specifically, taking the heating component 20 as a heating net as an example, during the assembly process, the heating net can be first placed on the isolation member 23, and then the portion of the heating component 20 is hot pressed, and then it is wrapped around the heat pipe 40, thereby completing the assembly process of the heating module 10. During this process, the TPI glue can tightly combine the heat pipe 40, the heating component 20 and the isolation member 23 together.

[0065] In addition, the heating module 10 also includes a heat-conducting tube 40, which has an insertion channel 41 suitable for inserting a cigarette 1; the heating component 20 is arranged on the outside of the heat-conducting tube 40; the isolation member 23 includes a heat-insulating film, which includes a first film segment 231 located between the heat-conducting tube 40 and the heating component 20 and a second film segment 232 located on the outside of the heating component 20; wherein the first film segment 231 surrounds the outside of the heat-conducting tube 40 for one week, and the second film segment 232 surrounds the outside of the heat-conducting tube 40 for at least three weeks.

[0066] In the technical solution corresponding to the present embodiment, the heating component 20 is arranged on the outside of the heat pipe 40, so that the heat emitted by the heating component 20 can be transferred to the cigarette 1 by the heat pipe 40 to heat the cigarette 1, and the heat pipe 40 can play the role of heat conduction and heat uniformity.

[0067] It is understandable that the heat pipe 40 can be a metal pipe or a plastic pipe, which is not limited here. When the heat pipe 40 is a metal pipe, by setting the first film segment 231, the first film segment 231 can play an insulating role between the heating component 20 and the heat pipe 40, thereby preventing the heating component 20 from being short-circuited by the heat pipe 40.

[0068] The first film segment 231 surrounds the outer side of the heat pipe 40, that is, only one layer of the heat insulating film is arranged between the heating component 20 and the heat pipe 40. While achieving insulation between the heating component 20 and the heat pipe 40, since only one layer is arranged, the influence on the heat transfer between the heating component and the heat pipe 40 is small.

[0069] The second film segment 232 surrounds the outer side of the heat pipe 40 at least three times, so that the second film segment 232 can form at least three layers of heat insulation on the outer side of the heating component 20, avoiding the heat generated by the heating component 20 from leaking out and reducing heat loss. The second film segment 232 has at least three layers. After the multi-layer winding, the heat insulation film can stand up in its width direction, which is convenient for subsequent assembly.

[0070] The heat-insulating film may be a PI film (polyimide film), which has good thermal conductivity, insulation, adhesion, and radiation resistance, and can be used for a long time within the temperature range of the smoking device.

[0071] See also Figure 8During the manufacturing process, the heating component 20 can be first placed on the thermal insulation film, and the width of the heating component 20 is b; the thermal insulation film has a first length edge in its length direction; the distance between the heating component 20 and the first length edge is a; wherein a>b, during the rolling process, the heating component 20 and the first length edge form the first film segment 231, and the other parts form the second film segment 232.

[0072] The embodiment of the present application further provides an electronic smoking device 100, which includes a heating module 10. The heating module 10 adopts a 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.

[0073] The heating module and the electronic cigarette 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 and core idea of ​​the present application. At the same time, for technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heating module, characterized in that: include: A heating component, the heating component comprising a first heating unit and a second heating unit sequentially arranged along a first direction, wherein the first heating unit is used to heat a first smoking segment of the cigarette, the second heating unit is used to heat a second smoking segment of the cigarette, and the coverage area of ​​the first heating unit is smaller than the coverage area of ​​the second heating unit; The rated heating power of the heating component is a, and the rated heating power of the first heating unit is b, wherein b≥0.5a.

2. The heating module according to claim 1, characterized in that: The first heating unit and the second heating unit have the same heating power; and / or, The rated heating power of the first heating unit and / or the second heating unit is equal to a.

3. The heating module according to claim 1 or 2, characterized in that: The coverage area of ​​the first heating unit is smaller than half of the coverage area of ​​the second heating unit.

4. The heating module according to claim 3, characterized in that: The heating module further includes a heat-conducting pipe, the first heating unit includes a first resistance wire, and the first resistance wire surrounds the outer side of the heat-conducting pipe along the circumference of the heat-conducting pipe; and / or, The second heating unit includes a plurality of second resistance wires arranged in parallel, and the second resistance wires are bent back and forth in the circumferential direction of the heat conducting pipe.

5. The heating module according to claim 1 or 2, characterized in that: The first heating unit and the second heating unit are arranged in parallel; and / or, The first heating unit and the second heating unit generate heat alternately.

6. The heating module according to claim 1 or 2, characterized in that: The heating module further includes a heat-conducting pipe, the heat-conducting pipe includes a first heat-conducting portion and a second heat-conducting portion sequentially arranged along a first direction, the first heating unit is wound around the first heat-conducting portion, and the second heating unit is wound around the second heat-conducting portion; Wherein, a size of the first heat conducting portion in the first direction is smaller than a size of the second heat conducting portion in the first direction.

7. The heating module according to claim 1 or 2, characterized in that: The heating component is one of a heating net, a carbon fiber heating element, and a printed circuit.

8. The heating module according to claim 7, characterized in that: The heating component is a heating net, and the heating module also includes an isolating member, which is at least sleeved on the outside of the heating component, and the isolating member is coated with tpi glue, and the heating net is bonded to the isolating member through the tpi glue.

9. The heating module according to claim 8, characterized in that: The heating module also includes a heat conducting pipe, and the heat conducting pipe has an insertion channel suitable for inserting a cigarette; The heating component is arranged on the outside of the heat pipe; The isolating member comprises a heat-insulating film, wherein the heat-insulating film comprises a first film segment located between the heat-conducting pipe and the heat-generating component and a second film segment located outside the heat-generating component; The first film segment surrounds the outer side of the heat conducting tube for one circle, and the second film segment surrounds the outer side of the heat conducting tube for at least three circles.

10. An electronic smoking device, characterized in that: It comprises a heating module as described in any one of claims 1 to 9.

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