Heating body structure, assembling method thereof and electronic cigarette device

Abstract

The invention provides a heating body structure, an assembling method thereof and an electronic cigarette device, and relates to the field of electronic cigarettes. The heating body structure comprises a shell, a pipe body and a heating assembly. A containing cavity is formed in the inner wall face of the shell. The pipe body penetrates through the containing cavity in the first direction. A mounting cavity is defined between the inner wall surface of the shell and the outer wall surface of the tube body, and a heating body of the heating assembly is arranged in the mounting cavity to heat a cigarette in the tube body; wherein the pipe body is provided with a first pipe end and a second pipe end which are opposite to each other in a first direction; the first pipe end and the second pipe end extend out of the containing cavity so as to seal the mounting cavity.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic cigarettes, and in particular relates to a heating element structure and an assembly method thereof, and an electronic cigarette device. Background Art

[0002] In e-cigarette products, the heating element structure is its core component. Its main function is to convert electrical energy into thermal energy, which in turn heats the cigarette and produces vapor for the user to inhale.

[0003] In existing technology, heat-not-burn e-cigarette products traditionally utilize a straight steel tube structure, with the upper and lower ends sealed by compression or the addition of sealing rings. However, over long-term use, this structure carries the risk of air leakage due to compression fatigue and a high risk of leakage. The long-term accumulation of e-liquid is difficult to clean, affecting the taste and user experience. Furthermore, the complex production and assembly process is prone to defective products. Summary of the Invention

[0004] In view of this, the present invention provides a heating element structure and an assembly method thereof, as well as an electronic cigarette device, which have high sealing performance and are easy to clean and assemble.

[0005] The technical solution of the present invention is achieved as follows:

[0006] An embodiment of the present invention provides a heating element structure, comprising: a shell, the inner wall surface of which forms a accommodating cavity; a tube body, which passes through the accommodating cavity along a first direction; an installation cavity is defined between the inner wall surface of the shell and the outer wall surface of the tube body; and a heating component, the heating element of the heating component is arranged in the installation cavity to heat the cigarette in the tube body; wherein the tube body has a first tube end and a second tube end opposite to each other in the first direction; the first tube end and the second tube end extend outside the accommodating cavity to close the installation cavity.

[0007] An embodiment of the present invention also provides an electronic cigarette device, comprising: a heating element structure and a shell, the shell being arranged on the outside of the heating element structure; the heating element structure comprising: a shell, the inner wall surface of the shell forming a accommodating cavity; a tube body, passing through the accommodating cavity along a first direction; an installation cavity is defined between the inner wall surface of the shell and the outer wall surface of the tube body, and a heating component, the heating element of the heating component being arranged in the installation cavity to heat the cigarette in the tube body; wherein the tube body has a first tube end and a second tube end opposite to each other in the first direction; the first tube end and the second tube end extend outside the accommodating cavity to close the installation cavity; wherein the first tube end extends out of the shell.

[0008] An embodiment of the present invention further provides a method for assembling a heating element structure, comprising the following steps:

[0009] Providing a housing, wherein the housing is formed with a receiving cavity;

[0010] Providing a metal tube, and forming the metal tube into an integral tube body by flanging and / or stamping, wherein the tube body has a first tube end and a second tube end;

[0011] Fixing the heating element to the outer wall of the tube;

[0012] Welding a wire to the heating element;

[0013] Wrapping a heat insulator on the outer side of the heating element;

[0014] Sleeve the sealing ring on the second pipe end;

[0015] The shell is sleeved outside the heat insulation body so that the first tube end abuts against the outer side of the shell and the second tube end abuts against the inner side of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is an overall appearance diagram of an embodiment of the heating element structure provided by the present invention;

[0018] Figure 2 for Figure 1 A cross-sectional view of the shell in FIG.

[0019] Figure 3 for Figure 1 Overall cross-sectional view;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the tube body;

[0021] Figure 5 for Figure 3 A magnified schematic diagram of point A in the middle;

[0022] Figure 6 Figure 1 Explosion diagram of

[0023] Figure 7 Figure 1 Assembly flow chart.

[0024] Description of reference numerals:

[0025] 1. Shell; 11. Accommodating cavity; 111. Second step surface; 112. First inner cavity section; 113. Second inner cavity section; 2. Tube body; 21. First tube end; 22. Second tube end; 221. First step surface; 222. First tube body; 223. Second tube body; 23. Tube body; 231. Straight tube section; 232. Folding section; 233. Overlapping portion; 3. Mounting cavity; 4. Heating component; 41. Heating element; 42. Wire; 43. Insulator; 5. Sealing element; 6. Threaded connection structure. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] In e-cigarette products, the heating element structure is its core component. Its main function is to convert electrical energy into thermal energy, which in turn heats the cigarette and produces vapor for the user to inhale.

[0030] In existing technology, heat-not-burn e-cigarette products traditionally utilize a straight steel tube structure, with the upper and lower ends sealed by compression or the addition of sealing rings. However, over long-term use, this structure carries the risk of air leakage due to compression fatigue and a high risk of leakage. The long-term accumulation of e-liquid is difficult to clean, affecting the taste and user experience. Furthermore, the complex production and assembly process is prone to defective products.

[0031] Therefore, the present invention provides a heating element structure that has high sealing performance and is easy to clean and assemble.

[0032] See also Figure 1 and Figure 2 The heating element structure includes a tube body 2, a shell 1 and a heating component 4. The inner wall surface of the shell 1 forms a receiving cavity 11; the inner wall surface of the shell 1 is the inner surface of the shell 1. The shell 1 can be barrel-shaped or other shapes.

[0033] See also Figure 2 and Figure 3 , the tube body 2 passes through the accommodating cavity 11 along the first direction. Here, "passing through" means passing through and extending out. The first direction can be understood as the axial direction of the tube body 2, or the extension direction of the tube body 2. The first direction can be a straight line (in Figure 2 The tubular body 2 may be a straight tube, an L-shaped tube, or a U-shaped tube. The tubular body 2 has two opposing ends in a first direction, namely a first end 21 and a second end 22, both of which remain open. If the first end 21 is used to insert a cigarette, the second end 22 is used to allow air to enter. Conversely, the second end 22 is used to insert a cigarette, while the first end 21 is used to allow air to enter.

[0034] See also Figure 3 The inner wall of the housing 1 and the outer wall of the tube 2 form a confined space, namely the mounting cavity 3. This mounting cavity 3 can be an annular columnar structure, or it can be spherical, rectangular, or other shapes. It is specifically used to accommodate the components of the heating assembly 4. The heating assembly 4 consists of multiple components, including a heating element 41. The heating element 41 is installed in the mounting cavity 3 to heat the cigarette inside the tube 2.

[0035] See also Figure 2 and Figure 3, the first tube end 21 and the second tube end 22 extend outside the accommodating cavity 11. Since the accommodating cavity 11 is formed by the inner wall of the shell 1, the first tube end 21 and the second tube end 22 protrude from the inner wall surface of the shell 1. It can be understood that since the tube body 2 extends out of the accommodating cavity 11, the aerosol generated by the heating of the cigarette in the tube body 2 can only flow out from the open mouth of the first tube end 21 and the second tube end 22 of the tube body 2, and will not directly enter the installation cavity 3 from the inside of the tube. In addition, since the inner wall surface of the tube body 2 is a smooth surface, even if aerosol or tobacco oil adheres to it, it is easy to clean, avoiding the problem of taste degradation and poor user experience caused by long-term accumulation of tobacco oil. Furthermore, since the aerosol inside the tube body 2 will not directly enter the installation cavity 3 from the inside of the tube body 2, the use of the corresponding sealing member 5 can be eliminated, so that the number of components of the heating element structure is reduced, thereby improving the convenience of assembly.

[0036] In specific implementation, the materials of the shell 1 and the tube 2 can be selected according to actual needs. For example, the shell 1 can be made of metal or plastic, and the tube 2 can be made of metal materials with good thermal conductivity such as stainless steel and copper alloy. The heating element 41 of the heating component 4 can be made of heating elements such as copper wire and ceramic heating sheet.

[0037] The heating element structure provided by the present invention can be further optimized and improved based on actual needs. For example, heat sinks or heat sink grooves can be provided on the outer wall of the tube body 2 to improve the heat dissipation efficiency of the heating element 41. The first tube end 21 and the second tube end 22 can also be configured in different shapes and sizes to accommodate different brands and types of cigarettes. Furthermore, anti-slip patterns or decorative patterns can be provided on the outer surface of the housing 1 to enhance the aesthetics and user comfort of the electronic cigarette product.

[0038] The heating element structure provided by the present invention includes a shell 1, a tube body 2 and a heating component 4; the inner wall surface of the shell 1 forms a receiving cavity 11; the tube body 2 passes through the receiving cavity 11 along a first direction; the inner wall surface of the shell 1 and the outer wall surface of the tube body 2 define a mounting cavity 3, and the heating element 41 of the heating component 4 is arranged in the mounting cavity 3 to heat the cigarette in the tube body 2; wherein the tube body 2 has a first tube end 21 and a second tube end 22 relative to each other in the first direction; the first tube end 21 and the second tube end 22 extend outside the receiving cavity 11 to close the mounting cavity 3. The present invention is designed so that the aerosol in the tube body 2 can only flow out through the open openings of the first tube end 21 and the second tube end 22 through the design of the tube body 2 extending out of the receiving cavity 11, thereby preventing the aerosol from entering the mounting cavity 3, thereby improving the sealing and cleanliness of the heating element structure. Moreover, since the heating element structure reduces or eliminates the use of sealing parts compared to the traditional heating element structure, the convenience of assembly is improved.

[0039] In some embodiments, see Figure 3 To facilitate sealing of the corresponding opening in the mounting cavity 3 by the first pipe end 21, the first pipe end 21 is configured to extend outside the housing 1. The first pipe end 21 extends outside the housing 1, that is, the first pipe end 21 extends outside the outer wall of the housing 1. Obviously, the first pipe section needs to extend further beyond the outer wall of the housing 1 than beyond the inner wall of the housing 1.

[0040] See also Figure 2 and Figure 3 In addition to the first tube end 21 and the second tube end 22, the tube body 2 also includes a tube main body 23 connected between the first tube end 21 and the second tube end 22. At the corresponding first tube end 21, a lap portion 233 extending along the second direction is provided on the tube main body 23. The second direction can be understood as the radial direction of the tube body 2, or the cross-sectional direction of the tube body 2. At the corresponding first tube end 21, a lap portion 233 extending along the second direction is provided on the tube main body 23. The lap portion 233 can be annular as shown in the figure, or it can be a plurality of circumferentially arranged sectors, and the specific shape is not limited. The lap portion 233 abuts against the edge of the accommodating cavity 11; the rim can be understood as the edge of the opening where the accommodating cavity 11 is penetrated by the tube body 2, and the edge surrounds the opening where the shell 1 is penetrated. The lap portion 233 seals the corresponding opening on the mounting cavity 3.

[0041] The embodiment of the present invention seals the corresponding opening of the mounting cavity 3 by providing an overlap portion 233 at the corresponding first tube end 21. The overlap portion 233 extends radially along the tube body 2 and tightly abuts the edge of the accommodating cavity 11, thereby effectively preventing aerosol or tobacco oil from leaking from the opening and further improving the sealing performance of the heating element structure.

[0042] In some embodiments, see Figure 3 In order to further optimize the sealing performance of the heating element structure, the overlap portion 233 and the accommodating cavity 11 (see Figure 2 ) Sealing materials such as sealant or sealing ring are provided at the abutment of the rim. These sealing materials can fill the small gap between the overlap portion 233 and the rim of the accommodating cavity 11, thereby further improving the sealing effect.

[0043] In some embodiments, see Figure 3 The tube body 23 and the overlapping portion 233 are integrally formed. This integrated configuration simplifies the manufacturing and assembly process of the tube body 2 and improves production efficiency. In addition, because the tube body 23 and the overlapping portion 233 are made of the same or similar materials, the connection between them is more secure and less likely to loosen or fall off, thereby further ensuring the stability and sealing of the heating element structure.

[0044] Furthermore, in order to improve the overall strength and durability of the heating element structure, reinforcing ribs or protrusions can be provided on the outer wall of the tube body 2. These structures can increase the wall thickness and mechanical strength of the tube body 2, making it more able to withstand external pressure and impact, thereby extending the service life of the heating element structure.

[0045] It can be understood that the heating element structure is the internal structure of the electronic cigarette device, that is, a shell needs to be provided on the outside of the heating element structure.

[0046] In some embodiments, see Figure 4 In order to facilitate the assembly of the heating element structure and the shell (not shown), the tube body 2 is extended out of the shell. The specific solution is: the tube body 23 has a straight tube section 231, and a folded section 232 connected to the straight tube section 231 and located outside the straight tube section 231, and the overlapping portion 233 is connected to the end of the folded section 232 away from the straight tube section 231. The folded section 232 is folded outward along the radial direction of the tube body 2, forming a structure with a certain angle to the straight tube section 231. This design not only increases the elasticity of the first end, but also enables the overlapping portion 233 to abut against the accommodating cavity 11 more stably (see Figure 2 ) on the rim, further improving the sealing performance.

[0047] In specific implementation, the angle between the folded section 232 and the straight section 231 can be adjusted according to actual needs to ensure that the overlapping portion 233 can be closely abutted against the accommodating cavity 11 (see Figure 2 ) on the edge of the tube body 2, while ensuring the overall strength and stability of the tube body 2. The design of the folded section 232 also makes it easier for the tube body 2 to cooperate with the shell during assembly, thereby improving the convenience and efficiency of assembly.

[0048] The embodiment of the present invention optimizes the assembly between the heating element structure and the housing by providing a folded section 232 extending outside the housing 1 at the first tube end 21, and connecting a lap joint 233 to the end of the folded section 232 away from the straight tube section 231. The design of the folded section 232 not only improves the elasticity of the first tube end 21, allowing the lap joint 233 to more tightly abut the edge of the accommodating cavity 11, thereby enhancing the sealing effect, but also allows the tube body 2 to cooperate more smoothly with the housing during assembly, avoiding sealing problems caused by improper assembly.

[0049] In some embodiments, see Figure 4 The connection between the folded section 232 and the straight section 231 of the tube body 23, as well as the connection between the overlapped portion 233 and the folded section 232, are smoothly rounded. This arrangement avoids stress concentration at the connection points, improving the overall strength and durability of the tube body 2. Furthermore, the smooth transition design allows the tube body 2 to fit more smoothly with the housing during assembly, further enhancing assembly convenience and efficiency.

[0050] In some embodiments, see Figure 1 、 Figure 2 and Figure 3 The overlapping portion 233 is connected to the edge of the accommodating chamber 11 via a threaded connection structure 6. This connection structure can use threaded fasteners such as screws and bolts. The edge of the accommodating chamber 11 refers to the edge of the opening of the accommodating chamber 11 where the tube body 2 penetrates. Because the overlapping portion 233 is connected to the edge of the accommodating chamber 11 via the threaded connection structure, the overlapping portion 233 and the housing 1 can form a single unit while maintaining removability, facilitating assembly and maintenance.

[0051] In some embodiments, see Figure 3 , a seal 5 is provided between the outer wall surface of the second tube end 22 and the inner wall surface of the accommodating chamber 11 to close the corresponding opening on the installation chamber 3. The seal 5 can be made of high-temperature resistant silicone, or medical silicone, food silicone, etc. The seal 5 can also be an O-ring, a rubber gasket or other elastic sealing material. These sealing materials can fit tightly between the outer wall surface of the second tube end 22 and the inner wall surface of the shell 1, effectively preventing aerosol or smoke oil from leaking from the opening, and further improving the sealing performance of the heating element structure. At the same time, due to the use of the seal 5, the connection between the second tube end 22 and the accommodating chamber 11 is more stable and not prone to loosening or falling off, thereby ensuring the stability and durability of the heating element structure. In specific implementation, the appropriate material and size of the seal 5 can be selected according to actual needs to ensure that its sealing effect and durability meet the requirements.

[0052] In some embodiments, see Figure 3 and Figure 5 The second tube end 22 of the tube body 2 is formed with a first step surface 221 facing away from the first tube end 21, and the inner wall surface of the shell 1 is formed with a second step surface 111 facing the first tube end 21; the seal 5 is clamped between the first step surface 221 and the second step surface 111. With this arrangement, the seal 5 can be stably clamped between the first step surface 221 and the second step surface 111; and the contact area between the seal 5 and the tube body 2 and the shell 1 can be further increased, thereby improving the sealing effect. The arrangement of the first step surface 221 and the second step surface 111 enables the seal 5 to be evenly stressed when under pressure, thereby avoiding the problem of poor sealing caused by uneven force. At the same time, the design of the step surface also makes the installation and disassembly of the seal 5 more convenient, thereby improving the efficiency of assembly.

[0053] In some embodiments, see Figure 2 and Figure 4In order to further ensure that the second tube end 22 of the tube body 2 is stably limited and the seal 5 is more stably clamped, the second end should extend into a specially designed limited space. The specific solution is as follows: corresponding to the second tube end 22, the tube body 2 includes a first tube body 222 with a larger outer diameter and a second tube body 223 with a smaller outer diameter. The first tube body 222 is located on the side of the second tube body 223 facing the first tube end 21, and a first step surface 221 is formed between the first tube body 222 and the second tube body 223; the inner wall surface of the shell 1 includes a first cavity section 112 with a larger inner diameter and a second cavity section 113 with a smaller inner diameter, and the second step surface 111 is formed between the first cavity section 112 and the second cavity section 113; wherein, the first tube body 222 at least partially extends into the first cavity section 112, and the second tube body 223 at least partially extends into the second cavity section 113.

[0054] The first stepped surface 221 is provided between the first tube body 222 and the second tube body 223, and the second stepped surface 111 is provided between the first inner cavity section 112 and the second inner cavity section 113. This ensures stable positioning of the second tube end 22 of the tube body 2 and enables the seal 5 to be more stably clamped between the first stepped surface 221 and the second stepped surface 111. This design not only improves the stability and sealing of the heating element structure, but also facilitates the installation and removal of the seal 5, further improving assembly efficiency.

[0055] In practice, the difference in outer diameter between the first tube body 222 and the second tube body 223, as well as the difference in inner diameter between the first inner cavity section 112 and the second inner cavity section 113, can be adjusted according to actual needs to ensure that the tube body 2 can stably extend into the corresponding inner cavity section and that the seal 5 can be effectively clamped. Furthermore, the size and shape of the first step surface 221 and the second step surface 111 can also be designed accordingly to further enhance the sealing effect.

[0056] In some embodiments, see Figure 3 and Figure 6 , the heating element 41 is attached to the outer wall of the tube body 2. The heating element 41 can be a heating element made of copper wire, ceramics or other materials. Its shape and size can be designed according to actual needs so that it can heat the cigarettes in the tube body 2 evenly and efficiently. The heating element 41 is attached to the outer wall of the tube body 2; in specific implementation, the heating element 41 can be wrapped around the outside of the heating element 41 by tape, or it can be fixed by pasting, welding or other methods. The specific fixing method can be selected according to the material and shape of the heating element 41. Such a design enables the heating element 41 to directly heat the cigarettes in the tube body 2, thereby improving the heating efficiency and the quality of smoke generation.

[0057] In some embodiments, please refer to Figure 3and Figure 6 The heating element structure also includes a heat insulator 43 arranged in the installation cavity 3, and the heat insulator 43 wraps the heating element 41. The setting of the heat insulator 43 is intended to reduce the heat transferred from the heating element 41 to the shell 1 during operation, thereby reducing the temperature of the shell 1 and improving the safety of the electronic cigarette product. The heat insulator 43 can be made of materials that are resistant to high temperatures and have poor thermal conductivity, such as aerogel, ceramic, asbestos, etc. In specific implementation, the shape and size of the heat insulator 43 can be customized according to the shape and size of the heating element 41 to ensure that it can effectively wrap the heating element 41 and play a heat insulating role.

[0058] In some embodiments, please refer to Figure 3 and Figure 6 The heating element structure further includes a wire 42, one end of which extends into the mounting cavity 3 to be connected to the heating element 41, and the other end extends out of the mounting cavity 3 to be connected to a power source.

[0059] Among them, the provision of the wire 42 realizes the electrical connection between the heating element 41 and the external power supply, so that the heating element 41 can obtain a stable supply of electricity and thus work normally. In specific implementation, the wire 42 can be made of a material that is resistant to high temperatures and has good electrical conductivity, such as nickel, nickel-chromium alloy, copper alloy, etc. At the same time, the cross-sectional area and length of the wire 42 can also be designed according to actual needs to ensure that it can meet the electrical energy requirements of the heating element 41 and does not generate excessive heat loss due to excessive resistance. In addition, in order to prevent the wire 42 from loosening or falling off in the installation cavity 3, structures such as snaps and fixing clips can be provided on the wire 42 to firmly fix it in the installation cavity 3.

[0060] Furthermore, an insulating layer may be provided on the wire 42 to enhance its safety. The insulating layer may be made of a high-temperature-resistant material with good insulation properties, such as polytetrafluoroethylene (PTFE) or silicone. The provision of the insulating layer effectively prevents the wire 42 from contacting other components within the mounting cavity 3, which could cause short circuits or leakage, thereby ensuring the stability and safety of the heating element structure.

[0061] The present invention also provides an electronic cigarette device. Figure 1 The electronic cigarette device includes a housing (not shown) and a heating element structure according to any of the above-described embodiments. The housing is disposed outside the heating element structure, and the housing and the heating element structure can be connected by a snap-fit connection, a threaded connection, or the like. Furthermore, the first tube section extends outside the housing, making it easier to mate with an external cigarette holder or other connector, thereby improving the ease of use of the electronic cigarette device.

[0062] In specific implementations, the shape and size of the housing can be designed based on actual needs to accommodate the heating element structure and protect it from damage from the external environment. The housing can be made of materials such as metal, plastic, and ceramic. These materials have good mechanical properties and corrosion resistance, can effectively protect the heating element structure, and extend the service life of the electronic cigarette device.

[0063] The present invention also provides a method for assembling a heating element structure. Figure 6 and Figure 7 , the assembly method comprises the following steps:

[0064] S10, providing a housing 1 and a metal tube;

[0065] The housing 1 is formed with a receiving cavity; the housing can be a metal shell or a plastic shell.

[0066] The metal tube is the above-mentioned tube body 2. The tube body is made of a material with good electrical conductivity and thermal conductivity, so that the heating element 41 can be fully supplied with electricity during operation, and the heat can be efficiently transferred to the cigarette. After providing the metal tube, the next step is to process and shape the tube body 2 to form the first tube end 21, the second tube end 22 and the tube body arranged therebetween. During the processing, the various parts of the tube body 2 can be precisely shaped according to the design requirements through processes such as cutting, stamping, flanging, and bending. In particular, the folded section 232 can be formed by a stamping or bending process so that the connection between it and the straight tube section is firm and has a certain degree of elasticity.

[0067] S11, fixing the heating element 41 to the outer wall of the tube body 2;

[0068] This step can be accomplished by gluing, wrapping, welding, or other methods, depending on the material and shape of the heating element 41. When attaching the heating element 41, close contact with the tube body 2 is necessary to ensure efficient heat transfer. Care should also be taken to position the heating element 41 so that it can evenly heat the cigarette within the tube body 2.

[0069] S12, welding the wire 42 to the heating element 41;

[0070] When welding the wires, the welds must be strong and conductive. After welding, the welds can be inspected and tested to ensure they meet the requirements. Furthermore, to prevent the wires 42 from loosening or falling out within the mounting cavity 3, after welding, buckles, fixing clips, or other structures can be provided on the wires 42 to securely secure them within the mounting cavity 3. This not only improves the stability and safety of the heating element structure, but also ensures the proper operation of the electronic cigarette device and extends its service life.

[0071] S13, wrapping the heat insulation 43 on the outside of the heating element 41;

[0072] The purpose of the thermal insulator 43 is to reduce the amount of heat transferred from the heating element 41 to the housing 1 during operation, thereby lowering the temperature of the housing 1 and improving the safety of the electronic cigarette product. The thermal insulator 43 can be made of a high-temperature resistant material with poor thermal conductivity, such as aerogel or ceramic. When wrapping the thermal insulator 43, it needs to fit tightly against the outside of the heating element 41 and not interfere with the normal operation of the heating element 41.

[0073] S14, putting the sealing ring on the second pipe end 22;

[0074] The sealing ring can be an O-shaped sealing ring or an L-shaped sealing ring. The provision of the sealing ring can further improve the sealing performance of the heating element structure.

[0075] S15 , sleeve the shell 1 onto the outside of the heat insulator 43 , so that the first tube end 21 abuts against the outside of the shell 1 , and the second tube end 22 abuts against the inside of the shell 1 .

[0076] In this step, the housing 1 and the tube body 2 must fit tightly together and the positions of the various components must be accurate. Appropriate positioning or guiding structures, such as positioning pins and guide grooves, can be used to assist in the assembly of the housing 1 and the tube body 2, thereby improving assembly accuracy and efficiency.

[0077] In summary, before fitting the housing 1 over the tube 2, the heating element 41, wire 42, and insulator 43 are sequentially secured to the outside of the tube 2, and the sealing ring is fitted over the second end of the tube 2. Next, the housing 1 is fitted over the assembled tube 2, ensuring that the wire 42 passes through the two pre-recorded wire holes in the housing 1. Finally, after the fitting is complete, the first end abuts the outside of the housing 1, while the second end abuts the inside of the housing 1.

[0078] Compared to conventional methods for assembling heater structures, the assembly method of the heater structure provided by the present invention eliminates the need for seal 5, making assembly much simpler. Furthermore, the use of concentric rods is eliminated, further simplifying the assembly process and reducing production costs. Furthermore, by eliminating the need for seal 5 and concentric rods, assembly problems caused by improper installation of seal 5 or inaccurate positioning of concentric rods are avoided, further improving the stability and reliability of the heater structure.

[0079] Furthermore, step S16 is included, wherein the first end is secured to the housing 1 using a threaded connection structure 6, such as a screw or piston. This step stabilizes the overall structure of the heating element 41. Since only threaded fasteners are used at the first tube end 21, the heating element structure is easy to disassemble and repair. If the heating element 41 or other components malfunction, they can be easily replaced or repaired, thereby extending the service life of the electronic cigarette device.

[0080] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A heating element structure, characterized in that: include: a housing, wherein an inner wall surface of the housing forms a receiving cavity; a tube body passing through the accommodating cavity along a first direction; an installation cavity is defined between the inner wall surface of the shell and the outer wall surface of the tube body, and A heating component, wherein the heating element of the heating component is arranged in the installation cavity to heat the cigarette in the tube body; The tube body has a first tube end and a second tube end opposite to each other in the first direction; the first tube end and the second tube end extend outside the accommodating cavity to close the installation cavity.

2. The heating element structure according to claim 1, characterized in that: The first pipe end extends out of the housing; The tube body includes a tube main body. Corresponding to the first tube end, a lap portion extending along the second direction is provided on the tube main body. The lap portion abuts against the edge of the accommodating cavity to close the corresponding opening on the installation cavity.

3. The heating element structure according to claim 2, characterized in that: The pipe main body and the overlapping portion are integrally provided.

4. The heating element structure according to claim 2, characterized in that: Corresponding to the first pipe end, the pipe body has a straight pipe section and a folded section connected to the straight pipe section and located outside the straight pipe section, and the overlapping portion is connected to one end of the folded section away from the straight pipe section.

5. The heating element structure according to claim 2, characterized in that: The overlapping portion and the edge of the accommodating cavity are connected via a threaded connection structure.

6. The heating element structure according to claim 1, characterized in that: A sealing member is provided between the outer wall surface of the second pipe end and the inner wall surface of the accommodating cavity for closing the corresponding opening on the installation cavity.

7. The heating element structure according to claim 6, characterized in that: The second tube end of the tube body is formed with a first step surface facing away from the first tube end, and the inner wall surface of the shell is formed with a second step surface facing the first tube end; The sealing member is sandwiched between the first step surface and the second step surface.

8. The heating element structure according to claim 7, characterized in that: Corresponding to the second pipe end, the pipe body includes a first pipe body with a larger outer diameter and a second pipe body with a smaller outer diameter, the first pipe body is located on a side of the second pipe body facing the first pipe end, and the first step surface is formed between the first pipe body and the second pipe body; The inner wall surface of the shell includes a first inner cavity section with a larger inner diameter and a second inner cavity section with a smaller inner diameter, and the second step surface is formed between the first inner cavity section and the second inner cavity section; Wherein, the first tube body at least partially extends into the first inner cavity section, and the second tube body at least partially extends into the second inner cavity section.

9. The heating element structure according to claim 1, characterized in that: The heating element is attached to the outer wall of the tube; and / or, The heating element structure further includes a heat insulator disposed in the installation cavity, and the heat insulator wraps the heating element.

10. The heating element structure according to claim 1, characterized in that: The heating element structure further includes a wire, one end of which extends into the installation cavity to be connected to the heating element, and the other end of which extends out of the installation cavity to be connected to a power source.

11. An electronic cigarette device, characterized in that: include: The heating element structure according to any one of claims 1 to 9; as well as, A housing, arranged on the outside of the heating element structure; Wherein, the first tube end extends out of the shell.

12. A method for assembling a heating element structure, characterized in that: The steps include: Providing a housing, wherein the housing is formed with a receiving cavity; Providing a metal tube, and forming the metal tube into an integral tube body by flanging and / or stamping, wherein the tube body has a first tube end and a second tube end; Fixing the heating element to the outer wall of the tube; Welding the wire to the heating element; Wrapping a heat insulator on the outer side of the heating element; Sleeve the sealing ring on the second pipe end; The shell is sleeved outside the heat insulation body so that the first tube end abuts against the outer side of the shell and the second tube end abuts against the inner side of the shell.

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