Heating components and aerosol generating device

Abstract

This application relates to the field of aerosol generation technology, and discloses a heating component and an aerosol generation device. The heating component includes a ceramic part and a heating element. The ceramic part has a first end and a second end facing away from each other. The ceramic part is provided with a receiving cavity, the extension direction of which is the same as the arrangement direction of the first end and the second end. The receiving cavity has an opening formed on the surface of the first end away from the second end. The heating element is disposed within the ceramic part and surrounds the receiving cavity. The distance between the surface of the first end away from the second end and the heating element is less than or equal to 2.5 mm; the distance between the surface of the second end away from the first end and the heating element is less than or equal to 2.5 mm. The heating component and aerosol generation device provided in this application are used to improve the problem of easy shrinkage or collapse of the ceramic part of the heating component in related technologies.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to a heating component and an aerosol generation device. Background Technology

[0002] In an aerosol generating device, a heating element is generally required to heat the aerosol generating matrix. The heating element typically includes a ceramic component and a heating element. Specifically, the aerosol generating matrix is ​​inserted into the receiving cavity of the heating element, and then the heating element is energized to generate aerosols from the aerosol generating matrix.

[0003] In related technologies, ceramic parts are obtained by sintering when manufacturing heating components, but ceramic parts are prone to shrinkage or collapse. Utility Model Content

[0004] This application provides a heating element and an aerosol generating device to improve the problem of ceramic parts of heating elements in related technologies being prone to shrinkage or collapse.

[0005] In a first aspect, embodiments of this application provide a heating component, including a ceramic part and a heating element. The ceramic part has a first end and a second end facing away from each other. The ceramic part is provided with a receiving cavity for accommodating an aerosol generation matrix. The extending direction of the receiving cavity is the same as the arrangement direction of the first end and the second end. The receiving cavity has an opening formed on the surface of the first end away from the second end. The heating element is disposed within the ceramic part and is arranged around the receiving cavity.

[0006] The distance between the surface of the first end away from the second end and the heating element is less than or equal to 2.5 mm;

[0007] And / or, the distance between the surface of the second end away from the first end and the heating element is less than or equal to 2.5 mm.

[0008] In some embodiments, the heating element includes a heating section and at least one non-heating section, wherein,

[0009] The non-heating section is provided between the first end and the heating section;

[0010] And / or, a non-heating section is provided between the second end and the heating section.

[0011] In some embodiments, two non-heating segments are provided, and the two non-heating segments are arranged at both ends of the heating segment along the arrangement direction of the first end and the second end, and both non-heating segments are connected to the heating segment; the heating element also includes two first leads, and the connecting component of each non-heating segment and the heating segment is respectively connected to the corresponding first lead.

[0012] In some embodiments, the heating element further includes a second lead located between the two first leads and connected to the heating segment.

[0013] In some embodiments, multiple second leads are provided, and the multiple second leads are spaced apart along the arrangement direction of the first end and the second end.

[0014] In some embodiments, the heating component includes a lead wire connected to the heating element, and the connection between the lead wire and the heating element is located inside the ceramic element.

[0015] In some of these embodiments, the porosity of the ceramic component is less than 20%.

[0016] In some embodiments, the distance between the heating element and the inner wall of the receiving cavity is less than the distance between the heating element and the outer surface of the ceramic element.

[0017] In some embodiments, the heating element includes a heating portion that defines a portion of the inner wall of the receiving cavity; or, the heating portion is located inside the receiving cavity.

[0018] In some of these embodiments, the outer surface of the heating element is covered with a protective coating.

[0019] In some embodiments, the heating element extends along a spiral path, and the axis of the heating element is parallel to the arrangement direction of the first end and the second end.

[0020] In some of these embodiments, the receiving cavity is coaxially arranged with the heating element.

[0021] In some of these embodiments, the pitch of the heating element gradually decreases from the first end to the second end.

[0022] In some embodiments, the heating element has a cross-section parallel to the arrangement direction of the first end and the second end, the dimension of the cross-section in a first direction being larger than the dimension of the cross-section in the second direction of the heating element, the first direction being parallel to the arrangement direction of the first end and the second end, and the second direction being perpendicular to the arrangement direction of the first end and the second end.

[0023] In some embodiments, the heating element is made of a temperature coefficient of resistance material; or, the heating assembly further includes a temperature detection element for detecting the temperature of the heating element.

[0024] The heating element is made of a temperature coefficient of resistance material, and the temperature coefficient of resistance of the heating element closer to the first end is less than the temperature coefficient of resistance of the heating element closer to the second end.

[0025] Secondly, embodiments of this application provide an aerosol generating apparatus, including the heating component as described in the first aspect.

[0026] The heating component provided in this application has the following advantages: Since the ceramic component has a first end and a second end facing away from each other, and the ceramic component is provided with a cavity for accommodating the aerosol generation matrix, the extending direction of the cavity is the same as the arrangement direction of the first end and the second end. The cavity has an opening formed on the surface of the first end away from the second end, and the heating element is disposed within the ceramic component, surrounding the cavity. The distance between the surface of the first end away from the second end and the heating element is less than or equal to 2.5 mm. Therefore, the strength of the first end can be improved by the heating element, preventing the first end from shrinking or collapsing; and / or, the distance between the surface of the second end away from the first end and the heating element is less than or equal to 2.5 mm. Therefore, the strength of the second end can be improved by the heating element, preventing the second end from shrinking or collapsing.

[0027] The advantages of the aerosol generating device provided in this application compared to the prior art can be found in the description of the advantages of the heating component provided in this application compared to the prior art, which will not be repeated here. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the aerosol generating device and the aerosol generating matrix in one embodiment of this application;

[0030] Figure 2 yes Figure 1 A top view of the aerosol generating device and the aerosol generating matrix shown.

[0031] Figure 3 yes Figure 2The aerosol generating apparatus and aerosol generating matrix shown are cross-sectional views along the MM direction.

[0032] Figure 4 yes Figure 3 The diagram shows the structure of the aerosol generating matrix and the atomizer in the aerosol generating device.

[0033] Figure 5 yes Figure 4 A top view of the atomizer and aerosol generation matrix shown;

[0034] Figure 6 yes Figure 5 The cross-sectional view of the atomizer and aerosol generating matrix shown along the NN direction;

[0035] Figure 7 yes Figure 6 A schematic diagram of the heating element in the atomizer is shown.

[0036] Figure 8 yes Figure 7 The front view of the heating component is shown;

[0037] Figure 9 yes Figure 8 The diagram shows the structure of the heating element in the heating assembly.

[0038] Figure 10 yes Figure 9 The front view of the heating element is shown.

[0039] Figure 11 yes Figure 10 The diagram shows a cross-sectional view of the heating element.

[0040] The markings in the diagram mean:

[0041] 1000. Aerosol generating device;

[0042] 100. Atomizer;

[0043] 1001. Air intake;

[0044] 10. Ceramic component; 101. First end; 102. Second end; 11. Receiving cavity; 111. Opening;

[0045] 20. Heating element; 201. Heating section; 202. Cross-section; 21. Heating segment; 22. Non-heating segment;

[0046] 30. First lead;

[0047] 40. Second lead;

[0048] 50. Inner tube;

[0049] 60. Base;

[0050] 70. Silicone parts;

[0051] 80. Plug;

[0052] 200. Aerosol generation matrix;

[0053] 300. Casing;

[0054] 400. Power supply. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0057] It is worth noting that in the embodiments of this utility model, "parallel" or "perpendicular" refers to the fact that there can be a predetermined angular deviation between the two. For example, the predetermined angle can be 0°, 0.5°, 1°, 1.5°, 2°, 3°, 4°, 4.5°, or 5°, etc.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] In this specification, references to "one embodiment," "some embodiments," or simply "embodiment" mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner.

[0060] In an aerosol generating device, a heating element is generally required to heat the aerosol generating matrix. The heating element typically includes a ceramic component and a heating element. Specifically, the aerosol generating matrix is ​​inserted into the receiving cavity of the heating element, and then the heating element is energized to generate aerosols from the aerosol generating matrix.

[0061] In related technologies, ceramic parts are obtained by sintering when manufacturing heating components, but ceramic parts are prone to shrinkage or collapse.

[0062] In view of this, this application provides a heating element and an aerosol generating device. Since the ceramic part has a first end and a second end facing away from each other, and the ceramic part is provided with a receiving cavity for accommodating the aerosol generating matrix, the extending direction of the receiving cavity is the same as the arrangement direction of the first end and the second end. The receiving cavity has an opening formed on the surface of the first end away from the second end, and the heating element is disposed in the ceramic part and arranged around the receiving cavity. The distance between the surface of the first end away from the second end and the heating element is less than or equal to 2.5 mm. Therefore, the strength of the first end can be improved by the heating element to prevent the first end from shrinking or collapsing. And / or, the distance between the surface of the second end away from the first end and the heating element is less than or equal to 2.5 mm. Therefore, the strength of the second end can be improved by the heating element to prevent the second end from shrinking or collapsing.

[0063] To illustrate the technical solution of this application, the following description is provided in conjunction with specific accompanying drawings and embodiments.

[0064] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of the aerosol generating device 1000 and the aerosol generating matrix 200 in one embodiment of this application. Figure 2 yes Figure 1 The diagram shows a top view of the aerosol generating apparatus 1000 and the aerosol generating matrix 200. Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the aerosol generating apparatus 1000 and the aerosol generating matrix 200 along the mm direction. Figure 4 yes Figure 3 The diagram shows the structure of the aerosol generating matrix 200 and the atomizer 100 in the aerosol generating device 1000.

[0065] In a first aspect, embodiments of this application provide a heating component that can be used in the atomizer 100 of an aerosol generating device 1000.

[0066] Please refer to this as well. Figures 5 to 8 , Figure 5 yes Figure 4 The top view of the atomizer 100 and the aerosol generating matrix 200 shown. Figure 6 yes Figure 5The cross-sectional view of the atomizer 100 and aerosol generating matrix 200 shown along the N-N direction. Figure 7 yes Figure 6 The diagram shows the structure of the heating element in the atomizer 100. Figure 8 yes Figure 7 The front view of the heating component is shown.

[0067] The heating element includes a ceramic component 10 and a heating element 20. The ceramic component 10 has a first end 101 and a second end 102 facing away from each other. The ceramic component 10 is provided with a receiving cavity 11 for receiving an aerosol generating matrix 200. The extending direction of the receiving cavity 11 is the same as the arrangement direction of the first end 101 and the second end 102. The receiving cavity 11 has an opening 111 formed on the surface of the first end 101 away from the second end 102.

[0068] The ceramic part 10 can be made of injection-molded ceramic, such as silicon dioxide, zirconium oxide or glass, or other high-temperature resistant materials. For example, the ceramic part 10 can be made of carbon crystal tube.

[0069] The first end 101 can be one end region of a ceramic part 10 with a certain length, and the second end 102 can be the other end region of a ceramic part 10 with a certain length.

[0070] The surface of the first end 101 furthest from the second end 102 is the surface of the first end 101 furthest from the second end 102, and the surface of the second end 102 furthest from the first end 101 is the surface of the second end 102 furthest from the first end 101. Both the surface of the first end 101 furthest from the second end 102 and the surface of the second end 102 furthest from the first end 101 can be planar or curved. For example, when the ceramic part 10 is placed vertically, the first end 101 and the second end 102 can be the upper and lower ends of the ceramic part 10, respectively. The surface of the first end 101 furthest from the second end 102 is the upper end surface of the ceramic part 10, and the surface of the second end 102 furthest from the first end 101 is the lower end surface of the ceramic part 10.

[0071] The heating element 20 can be made of materials such as nickel 50 alloy, nickel-chromium-aluminum alloy or titanium. For example, the heating element 20 can be a heating wire made of nickel-chromium-aluminum alloy.

[0072] The receiving cavity 11 is used to receive the aerosol generation matrix 200, which can be inserted into the receiving cavity 11 through the opening 111.

[0073] The heating element 20 is disposed inside the ceramic part 10 and is arranged around the receiving cavity 11.

[0074] The heating element 20 is disposed around the receiving cavity 11, that is, all or part of the heating element 20 is disposed around the receiving cavity 11, correspondingly, all or part of the heating element 20 is disposed on the periphery of the receiving cavity 11. For example, some of the heating elements 20 are disposed around the receiving cavity 11, and some of the heating elements 20 define the inner wall surface of the receiving cavity 11 or extend into the interior of the receiving cavity 11. The heating element 20 is used to heat the aerosol generating matrix 200 in the receiving cavity 11 so that the aerosol generating matrix 200 generates aerosols.

[0075] Wherein, the distance D1 between the surface of the first end 101 away from the second end 102 and the heating element 20 is less than or equal to 2.5 mm, refers to the distance between the part of the heating element 20 closest to the first end 101 and the surface of the first end 101 away from the second end 102, and D1 can be 0, 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, or 2.5 mm, etc. Alternatively, the distance D2 between the surface of the second end 102 away from the first end 101 and the heating element 20 is less than or equal to 2.5 mm, refers to the distance between the part of the heating element 20 closest to the second end 102 and the surface of the second end 102 away from the first end 101, and D2 can be 0, 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, or 2.5 mm, etc. Alternatively, both the distance D1 between the surface of the first end 101 away from the second end 102 and the heating element 20, and the distance between the surface of the second end 102 away from the first end 101 and the heating element 20, are less than or equal to 2.5 mm.

[0076] For example, when the first end 101 and the second end 102 are arranged in a vertically downward direction, the surface of the first end 101 away from the second end 102 is the upper surface of the ceramic part 10, and the surface of the second end 102 away from the first end 101 is the lower surface of the ceramic part 10.

[0077] When manufacturing the heating component provided in the embodiments of this application, the insert of the heating element 20 can be first injection molded into the interior of the blank of the ceramic part 10, and then the blank of the ceramic part 10 can be sintered to obtain the ceramic part 10.

[0078] Since the heating element 20 is disposed within the ceramic part 10, the distance D1 between the surface of the first end 101 away from the second end 102 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the heating element 20 can support the first end 101 of the ceramic part 10, improving the strength of the first end 101 and preventing the first end 101 from shrinking or collapsing when the ceramic part 10 is obtained by sintering. Similarly, since the heating element 20 is disposed within the ceramic part 10, the distance D2 between the surface of the second end 102 away from the first end 101 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the heating element 20 can support the second end 102 of the ceramic part 10, improving the strength of the second end 102 and preventing the second end 102 from shrinking or collapsing when the ceramic part 10 is obtained by sintering.

[0079] The heating component provided in this application embodiment has a ceramic part 10 with a first end 101 and a second end 102 facing away from each other. The ceramic part 10 is provided with a receiving cavity 11 for accommodating the aerosol generation matrix 200. The extending direction of the receiving cavity 11 is the same as the arrangement direction of the first end 101 and the second end 102. The receiving cavity 11 has an opening 111 formed on the surface of the first end 101 away from the second end 102. The heating element 20 is disposed inside the ceramic part 10 and is disposed around the receiving cavity 11. The distance between the surface of the first end 101 away from the second end 102 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the strength of the first end 101 can be improved by the heating element 20 to prevent the first end 101 from shrinking or collapsing. And / or, the distance between the surface of the second end 102 away from the first end 101 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the strength of the second end 102 can be improved by the heating element 20 to prevent the second end 102 from shrinking or collapsing.

[0080] Please refer to Figures 7 to 10 , Figure 9 yes Figure 8 The diagram shows the structure of the heating element 20 in the heating assembly. Figure 10 yes Figure 9 The front view of the heating element 20 is shown.

[0081] In some embodiments, the heating element 20 includes a heating section 21 and at least one non-heating section 22.

[0082] As one possible implementation, a non-heating section 22 is provided between the first end 101 and the heating section 21, and the distance D1 between the surface of the first end 101 away from the second end 102 and the non-heating section 22 is less than or equal to 2.5 mm.

[0083] This configuration not only enhances the strength of the first end 101 through the non-heating section 22, preventing the first end 101 from shrinking or collapsing, but also prevents the opening 111 of the first end 101 from cracking due to the heating of the non-heating section 22. It also prevents the non-heating section 22 from heating parts of the aerosol generating matrix 200 that do not require heating, and reduces energy consumption.

[0084] As another possible implementation, a non-heating section 22 is provided between the second end 102 and the heating section 21, and the distance between the surface of the second end 102 away from the first end 101 and the non-heating section 22 is less than or equal to 2.5 mm.

[0085] It should be noted that the heating segment 21 and the non-heating segment 22 can be separate or directly connected.

[0086] Two non-heating segments 22 are provided, and the two non-heating segments 22 are arranged at both ends of the heating segment 21 along the arrangement direction of the first end 101 and the second end 102. Both non-heating segments 22 are connected to the heating segment 21. The heating element 20 also includes two first leads 30, and the connecting component of each non-heating segment 22 and the heating segment 21 is respectively connected to the corresponding first lead 30.

[0087] With this configuration, the heating section 21 can heat the aerosol generating matrix 200 by energizing the two first leads 30, while also preventing the non-heating section 22 from heating itself.

[0088] Optionally, the heating element 20 further includes a second lead 40, which is located between the two first leads 30 and is connected to the heating section 21.

[0089] With this configuration, the aerosol generating matrix 200 can be heated first by energizing the second lead 40 and the first lead 30 near the first end 101, and then the aerosol generating matrix 200 can be heated by energizing the second lead 40 and the first lead 30 near the second end 102, and then the aerosol generating matrix 200 can be heated by energizing the second lead 40 and the first lead 30 near the second end 102, thereby allowing the aerosol generating matrix 200 to be heated in segments.

[0090] For example, the heating element 20 can be roughly divided into four sections. The upper non-heating section 22 is the first section, which is used to support the upper part of the ceramic part 10. The middle heating section 21 is divided into the second and third sections, which are used for segmented heating. The lower non-heating section 22 is the fourth section, which is used to support the lower part of the ceramic part 10.

[0091] Optionally, multiple second leads 40 are provided, and the multiple second leads 40 are spaced apart along the arrangement direction of the first end 101 and the second end 102.

[0092] With this setup, the aerosol generation matrix 200 can be heated in segments by energizing different second leads 40.

[0093] Please refer to Figures 7 to 10 In some embodiments, the heating component includes a lead wire connected to the heating element 20, and the connection point between the lead wire and the heating element 20 is located within the ceramic component 10.

[0094] By adopting the above solution, the connection between the lead wire and the heating element 20 can be protected to prevent corrosion.

[0095] It should be noted that the heating element 20 can be equipped with electrodes. The lead wire can be soldered to the electrode of the heating element 20 first, and then the lead wire, the heating element 20 and the ceramic can be injection molded together, so that the electrode of the heating element 20 is located inside the ceramic part 10.

[0096] It is understandable that the connection between the first lead 30 and the non-heating section 22 is located inside the ceramic component 10, and the connection between the second lead 40 and the heating section 21 is located inside the ceramic component 10.

[0097] Optionally, the porosity of the ceramic part 10 is less than 20%, such as 5%, 10%, 15% or 20%.

[0098] This configuration ensures the heat transfer efficiency and heating uniformity of the ceramic component 10, gives the ceramic component 10 a certain strength, and prevents the ceramic component 10 from adsorbing a large amount of aerosol generation matrix 200 and aerosols, thus preventing leakage of the aerosol generation matrix 200.

[0099] Optionally, the distance between the heating element 20 and the inner wall of the receiving cavity 11 is less than the distance between the heating element 20 and the outer surface of the ceramic element 10.

[0100] This configuration allows the heating element 20 to be closer to the aerosol generating matrix 200, thereby improving the heating efficiency of the aerosol generating matrix 200.

[0101] Please refer to Figures 7 to 10 In some embodiments, the heating element 20 includes a heating portion 201, wherein the heating portion 201 defines a portion of the inner wall of the receiving cavity 11; or, the heating portion 201 is located inside the receiving cavity 11.

[0102] By adopting the above scheme, the heating element 201 can be placed closer to the aerosol generating matrix 200, thereby improving the heating efficiency of the aerosol generating matrix 200.

[0103] It is understandable that when the heating element 201 is exposed on the inner wall of the receiving cavity 11, and the heating element 201 defines part of the inner wall of the receiving cavity 11, that is, the distance between the heating element 201 and the inner wall of the receiving cavity 11 is zero, and when the heating element 201 is located inside the receiving cavity 11, the distance between the heating element 201 and the inner wall of the receiving cavity 11 is negative.

[0104] It should be noted that the heating part 201 is part of the heating element 20. In addition to the heating part 201 heating the aerosol generating matrix 200, other parts of the heating element 20 can also heat the aerosol generating matrix 200.

[0105] It is also understood that when the heating element 20 includes a heating section 21 and at least one non-heating section 22, the heating part 201 is a part of the heating section 21.

[0106] Optionally, the outer surface of the heating element 201 is covered with a protective coating.

[0107] With this configuration, the heating element 201 can be protected by a protective coating.

[0108] It should be noted that the protective coating can be glass glaze, ceramic coating, or anodized layer, etc.

[0109] Understandably, when the protective coating is glass glaze, the glass glaze can prevent the heating element 201 from oxidizing and corroding, and can also achieve insulation function. At the same time, the glass glaze itself has low thermal conductivity, which can reduce local overheating and allow heat to be transferred more evenly to the area in contact with the aerosol generating matrix 200, reducing scorching.

[0110] Please refer to Figures 7 to 10 In some embodiments, the heating element 20 extends along a spiral path, and the axis of the heating element 20 is parallel to the arrangement direction of the first end 101 and the second end 102.

[0111] By adopting the above scheme, not only can the strength of the ceramic part 10 be improved by the heating element 20, but the aerosol generation matrix 200 can also be heated more uniformly by the heating element 20.

[0112] It should be noted that the pitch of the heating element 20 can be varied or fixed. The heating element 20 can be a single segment or multiple segments.

[0113] Optionally, the receiving cavity 11 is coaxially arranged with the heating element 20.

[0114] With this configuration, the aerosol generating matrix 200 can be heated more evenly by the heating element 20.

[0115] Optionally, the pitch of the heating element 20 gradually decreases from the first end 101 to the second end 102.

[0116] This configuration allows the heating element 20, located near the first end 101, to heat the aerosol generating matrix 200 more rapidly.

[0117] Optionally, the heating element 20 is made of a material with a temperature coefficient of resistance (TCR); or, the heating assembly may also include a temperature sensing element for detecting the temperature of the heating element 20.

[0118] This setting allows for better detection of the temperature of the heating element 20.

[0119] For example, the temperature sensing element may be a thermocouple or a thermistor.

[0120] The TCR value of the heating element 20 can be constant or variable, that is, the TCR value of the heating element 20 near the first end 101 is different from the TCR value of the heating element 20 near the second end 102.

[0121] As one possible implementation method, the heating element 20 is made of a temperature coefficient of resistance material, and the temperature coefficient of resistance of the heating element 20 near the first end 101 is less than the temperature coefficient of resistance of the heating element 20 near the second end 102.

[0122] This configuration allows the temperature field to move from the first end 101 to the second end 102 during the heating process, preventing the aerosol generation matrix 200 near the first end 101 from being scorched.

[0123] For example, the heating element 20 near the first end 101 is the upper half of the heating element 20, and the heating element 20 near the second end 102 is the lower half of the heating element 20. In the initial heating stage, the upper half of the heating element 20 has a larger resistance and generates more heat, while the lower half of the heating element 20 has a smaller resistance and generates less heat. As the temperature rises, the resistance of the upper half of the heating element 20 increases more slowly, and the heating efficiency of the upper half of the heating element 20 increases more slowly, while the resistance of the lower half of the heating element 20 increases more quickly, and the heating efficiency of the lower half of the heating element 20 increases more quickly. This creates a phenomenon where the temperature field moves from top to bottom, preventing the upper aerosol generation matrix 200 from being scorched. This process allows the two first leads 30 to be energized.

[0124] Please refer to Figures 7 to 11 Optionally, the heating element 20 has a cross section 202 parallel to the arrangement direction of the first end 101 and the second end 102. The dimension of the cross section 202 in the first direction is larger than the dimension of the cross section 202 in the second direction of the heating element 20. The first direction is parallel to the arrangement direction of the first end 101 and the second end 102, and the second direction is perpendicular to the arrangement direction of the first end 101 and the second end 102. The first direction may be the direction indicated by arrow J in the figure, and the second direction may be the direction indicated by arrow K in the figure.

[0125] This configuration allows the heating element 20 to have a larger surface area facing the aerosol generating matrix 200 inside the receiving cavity 11, thereby improving the heating efficiency of the aerosol generating matrix 200.

[0126] It is understood that the shape of section 202 can be rectangular or elliptical, etc. If the above effects are not considered, in other embodiments, the shape of section 202 can also be circular.

[0127] It should be noted that the atomizer 100 provided in this application embodiment may also be provided with an air inlet 1001, through which external gas enters the receiving cavity 11. One or more air inlets 1001 may be provided.

[0128] It is understood that the atomizer 100 provided in this application embodiment may also include an inner tube 50, a base 60, a silicone part 70, and a plug 80, etc. The ceramic part 10 is located inside the inner tube 50 and connected to the base 60, the silicone part 70 is located between the base 60 and the ceramic part 10, and the plug 80 is located at the bottom of the receiving cavity 11.

[0129] Please refer to Figures 1 to 11 Secondly, embodiments of this application provide an aerosol generating apparatus 1000, including a heating component as described in the first aspect.

[0130] The aerosol generating apparatus 1000 provided in this application embodiment has a ceramic component 10 with a first end 101 and a second end 102 facing away from each other. The ceramic component 10 is provided with a receiving cavity 11 for accommodating the aerosol generating matrix 200. The extending direction of the receiving cavity 11 is the same as the arrangement direction of the first end 101 and the second end 102. The receiving cavity 11 has an opening 111 formed on the surface of the first end 101 away from the second end 102. The heating element 20 is disposed inside the ceramic component 10 and is disposed around the receiving cavity 11. The distance between the surface of the first end 101 away from the second end 102 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the strength of the first end 101 can be improved by the heating element 20 to prevent the first end 101 from shrinking or collapsing. And / or, the distance between the surface of the second end 102 away from the first end 101 and the heating element 20 is less than or equal to 2.5 mm. Therefore, the strength of the second end 102 can be improved by the heating element 20 to prevent the second end 102 from shrinking or collapsing.

[0131] It is understood that the aerosol generating device 1000 provided in this application embodiment may also include a housing 300, a power supply 400, and a circuit board, etc. The atomizer 100, the power supply 400, and the circuit board are all disposed inside the housing 300. The heating element 20 is electrically connected to the power supply 400 through the circuit board. By energizing the heating element 20, the heating element 20 can heat the aerosol generating matrix 200 so that the aerosol generating matrix 200 generates aerosol.

[0132] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A heating element, characterized in that, The device includes a ceramic component and a heating element. The ceramic component has a first end and a second end facing away from each other. The ceramic component is provided with a receiving cavity for accommodating an aerosol-generating matrix. The extending direction of the receiving cavity is the same as the arrangement direction of the first end and the second end. The receiving cavity has an opening formed on the surface of the first end away from the second end. The heating element is disposed within the ceramic component and is arranged around the receiving cavity. The distance between the surface of the first end away from the second end and the heating element is less than or equal to 2.5 mm; And / or, the distance between the surface of the second end away from the first end and the heating element is less than or equal to 2.5 mm.

2. The heating component according to claim 1, characterized in that, The heating element includes a heating section and at least one non-heating section, wherein, The non-heating section is provided between the first end and the heating section; And / or, a non-heating section is provided between the second end and the heating section.

3. The heating component according to claim 2, characterized in that, Two non-heating segments are provided, and the two non-heating segments are arranged at both ends of the heating segment along the arrangement direction of the first end and the second end. Both non-heating segments are connected to the heating segment. The heating element also includes two first leads, and the connecting component of each non-heating segment and the heating segment is respectively connected to the corresponding first lead.

4. The heating component according to claim 3, characterized in that, The heating element further includes a second lead, which is located between the two first leads and is connected to the heating segment.

5. The heating component according to claim 4, characterized in that, Multiple second leads are provided, and the multiple second leads are spaced apart along the arrangement direction of the first end and the second end.

6. The heating component according to claim 1, characterized in that, The heating component includes a lead wire connected to the heating element, and the connection point between the lead wire and the heating element is located inside the ceramic component.

7. The heating component according to claim 1, characterized in that, The porosity of the ceramic component is less than 20%.

8. The heating component according to claim 1, characterized in that, The distance between the heating element and the inner wall of the receiving cavity is less than the distance between the heating element and the outer surface of the ceramic part.

9. The heating component according to claim 1, characterized in that, The heating element includes a heating section, wherein the heating section defines a portion of the inner wall of the receiving cavity; or, the heating section is located inside the receiving cavity.

10. The heating component according to claim 9, characterized in that, The outer surface of the heating element is covered with a protective coating.

11. The heating component according to any one of claims 1 to 10, characterized in that, The heating element extends along a spiral path, and the axis of the heating element is parallel to the arrangement direction of the first end and the second end.

12. The heating component according to claim 11, characterized in that, The receiving cavity is coaxially arranged with the heating element.

13. The heating component according to claim 11, characterized in that, From the first end to the second end, the pitch of the heating element gradually decreases.

14. The heating component according to claim 11, characterized in that, The heating element has a cross-section parallel to the arrangement direction of the first end and the second end. The dimension of the cross-section in the first direction is larger than the dimension of the cross-section in the second direction of the heating element. The first direction is parallel to the arrangement direction of the first end and the second end, and the second direction is perpendicular to the arrangement direction of the first end and the second end.

15. The heating component according to any one of claims 1 to 10, characterized in that, The heating element is made of a material with a temperature coefficient of resistance; or, the heating assembly further includes a temperature detection element for detecting the temperature of the heating element.

16. The heating component according to any one of claims 1 to 10, characterized in that, The heating element is made of a temperature coefficient of resistance material, and the temperature coefficient of resistance of the heating element closer to the first end is less than the temperature coefficient of resistance of the heating element closer to the second end.

17. An aerosol generating device, characterized in that, Includes the heating element as described in any one of claims 1 to 16.

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