Heating body structure, aerosol generating device and positioning tool

Abstract

The utility model discloses a heating body structure, an aerosol generating device and a positioning tool, and relates to the technical field of aerosol generating devices.The heating body structure comprises a shell and a heating pipe, the shell comprises an upper shell and a lower shell which are connected, and an inner cavity of the upper shell and an inner cavity of the lower shell are communicated to form a containing cavity; the heating tube is accommodated in the accommodating cavity; wherein the lower shell is provided with an air inlet section and a communicating section which are connected with each other, the communicating section is connected with the upper shell, and the height of partial space of the air inlet section is higher than the communicating position of the air inlet section and the communicating section.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol generating devices, in particular to a heating element structure, an aerosol generating device and a positioning tool. Background Art

[0002] An aerosol generating system usually consists of an aerosol generating device and an aerosol generating product. The aerosol generating product is inserted into the aerosol generating device, and the heating element structure in the aerosol generating device heats and bakes the aerosol generating product, thereby generating aerosol to meet the needs of users.

[0003] However, in related art, the air inlet and outlet holes of the heating element structure in aerosol generating devices are typically distributed along the same vertical axis, that is, the heating element structure is arranged in a straight cylindrical shape. As the use time increases, the heating element structure is prone to produce e-liquid. Due to the straight cylindrical structure of the heating element structure, the e-liquid is prone to vertical leakage, thus affecting the user experience. Utility Model Content

[0004] The main purpose of the utility model is to propose a heating element structure, an aerosol generating device and a positioning tool, aiming to solve the technical problem of vertical leakage of e-liquid in traditional products.

[0005] To achieve the above objectives, the present invention provides a heating element structure, which includes:

[0006] A housing, the housing comprising an upper housing and a lower housing connected to each other, wherein the inner cavity of the upper housing and the inner cavity of the lower housing are connected to form a containing cavity;

[0007] a heating pipe, the heating pipe being accommodated in the cavity;

[0008] The lower shell has an air intake section and a connecting section connected to each other, the connecting section is connected to the upper shell, and the height of a part of the space of the air intake section is higher than the connecting point between the air intake section and the connecting section.

[0009] The present utility model also provides an aerosol generating device, which includes the heating element structure mentioned above.

[0010] The present invention also provides a positioning tool, which includes:

[0011] Same core rod;

[0012] The above-mentioned heating element structure is sleeved on the coaxial rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 A schematic diagram of the structure of the heating element provided by the present invention;

[0015] Figure 2 A schematic cross-sectional view of the heating element structure provided by the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-section structure of the positioning tool provided by the utility model when assembling the heating element structure.

[0017] Description of Figure Numbers:

[0018] 100. Heating element structure; 1. Shell; 11. Upper shell; 111. First annular groove; 12. Lower shell; 121. Air inlet section; 122. Connecting section; 122a. Positioning step; 123. Second annular groove; 2. Heating tube; 21. Heating chamber; 3. Sealing assembly; 31. First sealing ring; 32. Second sealing ring; 200. Positioning tooling; 210. Core rod.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts shall fall within the scope of protection of the present invention.

[0021] 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 in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] 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 implying 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 schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. 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.

[0023] The present invention provides a heating element structure 100 .

[0024] See also Figures 1 to 3 In one embodiment of the present utility model, the heating element structure includes a shell 1 and a heating tube 2. The shell 1 includes an upper shell 11 and a lower shell 12 connected to each other. The inner cavity of the upper shell 11 and the inner cavity of the lower shell 12 are connected to form a cavity; the heating tube 2 is accommodated in the cavity; wherein, the lower shell 12 has an air intake section 121 and a connecting section 122 connected to each other. The connecting section 122 is connected to the upper shell 11, and the height of part of the space of the air intake section 121 is higher than the connecting point between the air intake section 121 and the connecting section 122.

[0025] In this embodiment, the heating element structure is applied to the aerosol generating device, and the upper shell 11 is located above the lower shell 12, and the upper shell 11 is sleeved on the lower shell 12 for assembly and disassembly. Accordingly, the upper shell 11 is sleeved on the connecting section 122. The cavity is used to accommodate the heating tube 2, and the heating tube 2 is wrapped by the upper shell 11 and the lower shell 12. Preferably, the material of the upper shell 11 and the lower shell 12 is polyetheretherketone, including but not limited to metal, high-temperature resistant plastic and other materials. The heating tube 2 is used to generate heat, which is directly transferred to the aerosol-forming matrix and other media through heat conduction, so that the medium is atomized at a certain temperature. Accordingly, the material of the heating tube 2 includes ultra-low carbon austenitic stainless steel, iron-chromium wire, titanium wire, etc., and also includes other metal materials or plastic materials. Ultra-low carbon austenitic stainless steel is preferably used here. Furthermore, the air inlet section 121 and the connecting section 122 are an integrally formed structure, which helps to simplify the manufacturing process and improve precision; at the same time, it reduces the difficulty of assembly. Combined with Figure 1As can be seen, the shapes of the air intake section 121 and the connecting section 122 are generally L-shaped, but the shapes formed between the air intake section 121 and the connecting section 122 include, but are not limited to, U-shaped, L-shaped, and V-shaped shapes, which are not limited here. Any shape can be formed as long as the height of the partial space of the air intake section 121 is higher than the connection point between the air intake section 121 and the connecting section 122. It is understood that the opening direction of the air intake section 121 is not limited to the upward opening as shown in the figure, and can also be set with the opening downward, as long as the height of the partial space within the inner cavity of the air intake section 121 is higher than the height of the connection point between the connecting section 122 and the air intake section 121.

[0026] The technical solution of the present invention is to set the lower shell 12 as an air intake section 121 and a connecting section 122, and make the partial space height of the air intake section 121 higher than the connecting point between the air intake section 121 and the connecting section 122. Compared with the related art in which the air intake end and the connecting section 122 are distributed along the same axis, the present application can guide the airflow to enter the heating element in a specific direction, avoid direct impact on the surface of the smoke oil, reduce the splashing or leakage of the smoke oil due to airflow disturbance, and reduce the possibility of vertical dripping of the smoke oil, thereby reducing the impact of the smoke oil on the user experience and the damage to the structure of the heating element; at the same time, the angle setting can reduce the area of ​​direct contact between the airflow and the smoke oil, thereby reducing the possibility of the smoke oil being accidentally inhaled into the airflow and reducing the risk of oil leakage.

[0027] In one embodiment of the present invention, the air inlet section 121 is provided with an air inlet, which is connected to the inner cavity of the air inlet section 121 . The height of the air inlet is higher than the connection point between the air inlet section 121 and the connecting section 122 .

[0028] In this embodiment, in order to reduce oil leakage and improve the air intake efficiency, the opening direction of the air intake is set upward along the horizontal line direction, and the inner cavity of the air intake section 121 and the air intake are set along the same axis. Figure 1 As can be seen, the end surface of the air inlet section 121 facing the connecting section 122 forms an angle with the end surface of the connecting section 122 facing the air inlet section 121, including but not limited to an angle of 0-90 degrees, which is not limited here. This arrangement avoids direct impact on the liquid surface, reduces liquid splashing or leakage caused by airflow disturbances, and reduces the possibility of vertical liquid dripping.

[0029] In one embodiment of the present invention, the bottom wall of the connecting section 122 is recessed along the side facing away from the heating tube 2 and forms a limiting step 122a with the side wall of the connecting section 122. The height of the connecting point between the air inlet section 121 and the connecting section 122 is higher than the bottom wall of the connecting section 122.

[0030] In this embodiment, the limiting step 122a is used to prevent vertical dripping of smoke oil from clogging the inner cavity of the air intake section 121. It is understood that the bottom wall of the connecting section is recessed downward, and the bottom wall can be designed in an arc shape, i.e., low in the middle and high on both sides, to achieve the effect of collecting smoke oil, but this is not limited here. This arrangement effectively prevents smoke oil from leaking from the connection between the air intake section 121 and the connecting section 122. Even if smoke oil is produced, it will be blocked by the limiting step 122a, preventing it from flowing directly into the inner cavity of the air intake section 121. It also helps to maintain the cleanliness of the airflow channel, preventing smoke oil from clogging the airflow channel and maintaining unobstructed airflow.

[0031] In one embodiment of the present utility model, the heating element structure also includes a sealing assembly 3, which includes a first sealing ring 31 and a second sealing ring 32. The first sealing ring 31 and the second sealing ring 32 are both accommodated in the cavity. The end of the heating tube 2 close to the upper shell 11 is sealed to the upper shell 11 through the first sealing ring 31, and the end of the heating tube 2 close to the lower shell 12 is sealed to the lower shell 12 through the second sealing ring 32.

[0032] In this embodiment, the use of the first and second sealing rings 31, 32 ensures a tight seal at the connection between the heating tube 2 and the upper and lower shells 11, 12, preventing leakage of tobacco oil between the heating tube 2 and the shell 1, while also improving waterproof performance. Accordingly, the first and second sealing rings 31, 32 include, but are not limited to, high-temperature resistant silicone, medical silicone, food silicone, etc., with high-temperature resistant silicone being preferred. This arrangement ensures the sealing performance of the heating element structure, reduces heat loss, and improves the thermal efficiency of the heating element.

[0033] In one embodiment of the present invention, a first annular groove 111 is formed at one end of the upper shell 11 close to the heating tube 2, and the first sealing ring 31 is limited and abutted in the first annular groove 111; a second annular groove 123 is formed at one end of the lower shell 12 close to the heating tube 2, and the second sealing ring 32 is limited and abutted in the second annular groove 123.

[0034] In this embodiment, the first and second annular grooves 111, 123 are used to ensure proper installation of the sealing ring. Accordingly, the first and second annular grooves 111, 123 are arranged in an annular shape. This arrangement significantly improves the sealing performance of the heating element structure, effectively preventing gas or liquid leakage during operation of the heating tube 2, and ensuring the safety and stability of the device. Furthermore, the provision of the annular grooves simplifies the installation and replacement of the sealing ring.

[0035] In one embodiment of the present invention, the heating tube 2 defines a heating cavity 21 , and the heating tube 2 , the upper shell 11 , and the lower shell 12 enclose a heat preservation cavity.

[0036] In this embodiment, the heat pipe 2 and the inner cavity of the upper shell 11 and the inner cavity of the lower shell 12 are enclosed to form a heat preservation cavity. Accordingly, the upper and lower ends of the heat pipe 2 have nozzles, and the outer edge of the nozzle at the upper end of the heat pipe 2 is sealed to the top inner cavity wall of the upper shell 11 by a first sealing ring 31 to seal the upper end of the heat pipe 2 with the top inner cavity wall of the upper shell 11. The outer edge of the nozzle at the lower end of the heat pipe 2 is sealed to the bottom inner cavity wall of the lower shell 12 by a second sealing ring 32 to seal the lower end of the heat pipe 2 with the bottom inner cavity wall of the lower shell 12. The above-mentioned setting method helps to achieve isolation between the heating cavity 21 and the heat preservation cavity, which can reduce heat loss and improve the thermal efficiency of the heat pipe 2.

[0037] In one embodiment of the present invention, the upper shell 11 is provided with a first through hole, the lower shell 12 is provided with a second through hole adapted to the through hole, and the heating element structure further includes a locking member, which passes through the first through hole and is locked and fixed with the second through hole.

[0038] In this embodiment, the first through hole, the second through hole, and the locking member securely lock the upper shell 11 and the lower shell 12, enhancing the stability and safety of the structure and preventing damage to the heating element due to an unstable connection. The use of the locking member provides additional fixing force, ensuring that the heating element structure remains stable when subjected to external impact or vibration.

[0039] The present invention also provides an aerosol generating device, which includes a heating element structure. The specific structure of the heating element structure is described in the above embodiments. Since the present aerosol generating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The aerosol generating device includes the heating element structure of any of the above embodiments.

[0040] In this embodiment, the middle of the heating element structure is sealed to form a heat preservation cavity and a heating cavity 21, and the upper shell 11 and the lower shell 12 are respectively provided with openings for gas circulation. Furthermore, when the aerosol generating device is used, the aerosol is inserted into the heating element structure, the power is turned on, and the heating tube 2 generates a high temperature of more than 230 degrees Celsius. The aerosol generating product is heated by the heating tube 2, and the aerosol generating product generates smoke, but the aerosol generating product does not burn. The user meets the demand by inhaling the smoke. The above-mentioned setting method helps to improve the user experience, and the air inlet section 121 and the connecting section 122 of the lower shell 12 are set at an angle, which is different from the traditional product in appearance and meets the user's diverse appearance requirements.

[0041] The present invention further provides a positioning fixture 200, which includes a core rod 210 and a heating element structure. The specific structure of the heating element structure is similar to that of the above-mentioned embodiments. Since the positioning fixture 200 utilizes all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described in detail here. The heating element structure is sleeved on the core rod 210.

[0042] In this embodiment, the core rod 210 is used to provide mounting and positioning for the assembled heating element structure. Accordingly, the upper shell 11, heating tube 2, sealing ring, and lower shell 12 of the heating element structure are sequentially attached to the core rod 210. Once assembled, the upper shell 11 and lower shell 12 are bolted together to complete the assembly. The above operation process is simple and practical.

[0043] In one embodiment of the present invention, abutment sections are formed at both ends of the core rod 210, and the abutment sections are used to provide abutment and fixation when the heating element structure is sleeved with the core rod.

[0044] In this embodiment, preferably, a limiting boss is formed at one end of the core rod 210 close to the heating element structure, i.e., the abutting section, and the lower shell 12 is provided with a limiting groove. The bottom wall of the limiting groove is connected to the inner cavity of the air inlet section 121 of the lower shell 12, and the limiting boss abuts the limiting groove to assemble and position the heating element structure. The cooperation between the limiting boss and the limiting groove can accurately position the heating element structure, ensuring that the other assembled components are in the correct position in the lower shell 12 before the lower shell 12 is assembled, thereby ensuring the stability and functionality of the heating element structure. The above-mentioned setting method simplifies the assembly process of the upper shell 11 and the lower shell 12, and reduces the adjustment and alignment during assembly.

[0045] The above are merely exemplary embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A heating element structure, characterized in that: The heating element structure includes: A housing, the housing comprising an upper housing and a lower housing connected to each other, wherein the inner cavity of the upper housing and the inner cavity of the lower housing are connected to form a containing cavity; a heating pipe, the heating pipe being accommodated in the cavity; The lower shell has an air intake section and a connecting section connected to each other, the connecting section is connected to the upper shell, and the height of a part of the space of the air intake section is higher than the connecting point between the air intake section and the connecting section.

2. The heating element structure according to claim 1, wherein: The air intake section is provided with an air intake port, and the air intake port is arranged at a height higher than the connecting point between the air intake section and the connecting section.

3. The heating element structure according to claim 1, wherein: The bottom wall of the connecting section is recessed along a side facing away from the heating tube and forms a limiting step with the side wall of the connecting section. The height of the connecting point between the air inlet section and the connecting section is higher than the bottom wall of the connecting section.

4. The heating element structure according to any one of claims 1 to 3, characterized in that: The heating element structure also includes a sealing assembly, which includes a first sealing ring and a second sealing ring. The first sealing ring and the second sealing ring are both accommodated in the cavity. The end of the heating tube close to the upper shell is sealed to the upper shell through the first sealing ring, and the end of the heating tube close to the lower shell is sealed to the lower shell through the second sealing ring.

5. The heating element structure according to claim 4, characterized in that: A first annular groove is formed on one end of the upper shell close to the heating tube, and the first sealing ring is limited and abutted in the first annular groove; a second annular groove is formed on one end of the lower shell close to the heating tube, and the second sealing ring is limited and abutted in the second annular groove.

6. The heating element structure according to claim 5, characterized in that: The heating tube is provided with a heating cavity, and the heating tube, the upper shell and the lower shell are enclosed to form a heat preservation cavity.

7. The heating element structure according to any one of claims 1 to 3, characterized in that: The upper shell is provided with a first through hole, the lower shell is provided with a second through hole adapted to the through hole, and the heating element structure further includes a locking member, which passes through the first through hole and is locked and fixed with the second through hole.

8. An aerosol generating device, characterized in that: The aerosol generating device comprises the heating element structure according to any one of claims 1 to 7.

9. A positioning tool, characterized in that: The positioning tooling comprises: Same core rod; The heating element structure according to any one of claims 1 to 7, wherein the heating element structure is sleeved on the coaxial rod.

10. The positioning tool according to claim 9, characterized in that: Abutment sections are respectively formed at both ends of the coaxial rod, and the abutment sections are used to provide abutment and fixation when the heating element structure is sleeved with the coaxial rod.

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