Heating device and atomizing equipment

Abstract

The utility model relates to the technical field of atomization equipment, and provides a heating device and atomization equipment. The heating device comprises a heating body, the heating body is internally provided with a heating cavity penetrating in the first direction, the heating cavity comprises a plurality of heating sections sequentially connected in the first direction, and in the first direction, the maximum size of the heating section of at least one end of the heating body in the second direction is smaller than the maximum size of the adjacent heating section in the second direction; and the heating piece is arranged on the outer side of the heating body, and the heating piece can be electrically connected with the power supply device so as to enable the heating body to heat in a power-on state. According to the technical scheme, the heating cavity of the heating body is divided into the multiple heating sections in the first direction, different areas of the aerosol generating rod can be heated differentially by means of the fact that the distances between the heating sections different in size in the second direction and the corresponding areas on the aerosol generating rod are different, and therefore heat loss is reduced, and the heating efficiency is improved. The atomization speed of the atomization matrix is increased, and the heating atomization efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of atomization equipment technology, specifically to a heating device and an atomization device. Background Technology

[0002] Currently, common heated non-combustible atomization devices typically use cylindrical heating elements to heat an inserted aerosol generating rod. Since the atomizing matrix inside the aerosol generating rod is concentrated in a localized area, that area needs heating to atomize the matrix, while other areas do not require excessive heat. However, existing cylindrical heating elements have the same diameter across different areas along the height, resulting in a relatively uniform heating amount across the entire aerosol generating rod. This leads to a dispersed heat distribution, making it difficult to target specific areas for heating the atomizing matrix. Furthermore, other areas within the aerosol generating rod (such as areas not used for storing the atomizing matrix) also experience heat loss, impacting the overall heating and atomization efficiency. Utility Model Content

[0003] To address the problems of dispersed heat distribution, difficulty in targeting specific areas of the atomizing matrix, heat loss, and reduced overall heating and atomization efficiency in existing atomizing devices, this application provides a heating device and an atomizing device.

[0004] An embodiment of the first aspect of the technical solution of this application provides a heating device, comprising: a heating element having a heating cavity extending along a first direction, the heating cavity including a plurality of heating segments sequentially connected in the first direction, wherein in the first direction, the maximum dimension of the heating segment at at least one end of the heating element in the second direction is smaller than the maximum dimension of the adjacent heating segment in the second direction, and the second direction is perpendicular to the first direction; and a heating element disposed on the outside of the heating element, the heating element being electrically connected to a power supply device to cause the heating element to heat up when energized.

[0005] In a further embodiment of this application, the heating chamber includes a first heating section, a second heating section, and a third heating section connected sequentially in a first direction; in a second direction, the maximum dimensions of the first heating section and the third heating section are both smaller than the maximum dimension of the second heating section, and the dimensions of the first heating section and the third heating section in the second direction are adapted to the dimensions of the aerosol generating rod inserted into the heating chamber, so as to clamp the aerosol generating rod and form a compression.

[0006] In a further embodiment of this application, in the first direction, both ends of the second heating segment have curved transition segments, the first heating segment and the second heating segment are respectively connected to a corresponding curved transition segment, and the dimensions of the first heating segment and the second heating segment in the first direction are both smaller than the dimensions of the second heating segment in the first direction.

[0007] In a further embodiment of this application, the wall thickness of the first heating section, the second heating section, and the third heating section is the same.

[0008] In a further embodiment of this application, at least one of the first heating section and the third heating section is an elliptical tube structure; the second heating section is a circular tube structure, wherein the diameter of the circular tube structure is greater than the minor axis of the elliptical tube structure and less than the major axis of the elliptical tube structure.

[0009] In a further embodiment of this application, the heating element is an electromagnetic induction heating element, including at least one set of induction coils. The induction coils are wound around the outside of the heating body and spirally arranged along a first direction. Both ends of the induction coils in the first direction have an electrical connection structure. The heating body is a cylindrical structure made of soft magnetic material and is suitable for heating under electromagnetic induction.

[0010] In a further embodiment of this application, the heating device further includes: a support member having a mounting cavity extending in a first direction, an abutment structure on the inner wall of the mounting cavity, the abutment structure being close to one end of the mounting cavity; and a support base disposed at the other end of the support member opposite to the abutment structure, and a portion of the support base extending into the mounting cavity; wherein, the heating element and the heating component are disposed in the mounting cavity, and in the first direction, one end of the heating element abuts against the support base, and the other end of the heating element abuts against the abutment structure.

[0011] In a further embodiment of this application, the end of the support base away from the abutment structure has a snap-fit ​​structure for snap-fitting with the bracket structure inside the atomizing device; and / or, the outer side wall of the support base has a lead wire fixing groove.

[0012] In a further embodiment of this application, the heating device further includes: a heat insulation sleeve, which is disposed in the mounting cavity and covers the outside of the heating element. The heat insulation sleeve blocks the heating element in a first direction, and there is a preset heat insulation gap between the heat insulation sleeve and the heating element; and / or a fixing sleeve, which is connected to the end of the support member away from the support base. The inner sidewall of the fixing sleeve is provided with a plurality of radial protrusions spaced circumferentially. The size of the radial protrusions is adapted to the size of the heating cavity and is used to abut against the sidewall of the aerosol generating rod inserted into the heating cavity.

[0013] An embodiment of the second aspect of the technical solution of this application provides an atomizing device, comprising: a housing, one end of which has an assembly port in a first direction; a heating device according to any embodiment of the first aspect, wherein the heating device is disposed in the housing and the heating element of the heating device is correspondingly disposed with respect to the assembly port; and a power supply device, wherein the power supply device is disposed in the housing and is electrically connected to the heating element of the heating device.

[0014] The beneficial effects of the above-mentioned technical solution of this application are as follows:

[0015] According to the heating device in this application, by improving and optimizing the structure, the heating cavity of the heating element is divided into multiple heating sections in the first direction. When applied to an atomizing device, the spacing between the heating sections of different sizes in the second direction and the corresponding areas on the aerosol generating rod is different, so that different areas of the aerosol generating rod are heated in the height direction. This increases the heating amount in the area of ​​the aerosol generating rod that stores the atomizing matrix, while relatively reducing the heating amount in other areas, thereby reducing heat loss and improving heating atomization efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of a heating device in one embodiment of this application;

[0017] Figure 2 This is a three-dimensional schematic diagram of a heating element in one embodiment of this application;

[0018] Figure 3 This is a three-dimensional schematic diagram of the heating element in one embodiment of this application from another perspective;

[0019] Figure 4 This is a top view of the heating element in one embodiment of this application;

[0020] Figure 5 This is a cross-sectional view of a heating element in one embodiment of this application (the cross-section extends along the second direction);

[0021] Figure 6 This is a cross-sectional view of the heating element in another embodiment of this application (the cross-section extends along a third direction);

[0022] Figure 7 This is a perspective view of the heating device in another embodiment of this application;

[0023] Figure 8 This is a perspective view of the heating device in another embodiment of this application from another angle.

[0024] Figure 9 This is an exploded view of the heating device in another embodiment of this application (heating element not shown);

[0025] Figure 10 This is a perspective view of the heating device in another embodiment of this application;

[0026] Figure 11 for Figure 10 A cross-sectional view of the heating device (the cutting plane extends along a third direction, and the heating element is not shown);

[0027] Figure 12This is a perspective view of an atomizing device in one embodiment of this application;

[0028] Figure 13 This is a perspective view of the atomizing device in one embodiment of this application from another angle.

[0029] Figure 14 This is a cross-sectional view of an atomizing device in one embodiment of this application (the cross-section extends along a third direction, and the heating element is not shown);

[0030] Figure 15 This is a cross-sectional view of an atomizing device in one embodiment of this application (the cross-section extends along a second direction, and the heating element is not shown).

[0031] In the above-mentioned figures, arrow F1 indicates the first direction, arrow F2 indicates the second direction, and arrow F3 indicates the third direction.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 Heating device, 1 heating element, 11 heating cavity, 111 first heating section, 112 second heating section, 1121 curved transition section, 113 third heating section, 2 heating element, 21 induction coil, 22 electrical connection structure, 31 support element, 311 mounting cavity, 312 abutment structure, 32 support base, 321 snap-fit ​​structure, 322 lead wire fixing groove, 323 base connecting groove, 33 heat insulation sleeve, 34 fixing sleeve, 341 radial protrusion structure, 342 slot structure;

[0034] 400 Atomizing device, 410 Housing, 411 Assembly port, 412 Support structure, 413 Operation buttons, 420 Power supply device, 421 Battery, 422 Control board; 500 Aerosol generating rod. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0036] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0037] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0038] An aerosol generator is a special atomizing product containing an atomizing matrix. In use, it is inserted into a matching heated non-combustible atomizing device. The heating element heats the aerosol generator, causing the atomizing matrix inside to atomize and generate an aerosol. As the user draws air from the aerosol generator, the aerosol is carried by the airflow to the suction end. The atomizing matrix should primarily be concentrated in a localized area inside the aerosol generator near the insertion end (the end used to insert into the heating chamber).

[0039] The heating device provided in this application employs a heating element with a heating cavity, and a heating element is disposed outside the heating element to heat the heating element when the heating element is energized. The heating cavity of the heating element is divided into multiple sequentially connected heating segments in a first direction, and at least one heating segment at one end has a smaller dimension in a second direction than the adjacent heating segment in the second direction. This ensures that when the aerosol generating rod is inserted into the heating cavity, the spacing between different heating segments and the aerosol generating rod in the second direction varies, resulting in differentiated heating of different areas on the aerosol generating rod. This increases the heating amount in the portion of the aerosol generating rod that stores the atomization matrix, while correspondingly reducing the heating amount in other areas, thereby improving the heating atomization efficiency.

[0040] Wherein, the first direction is the height direction, the second direction is the horizontal direction perpendicular to the height direction, and the second direction is another horizontal direction perpendicular to the second direction. The situation in the following embodiments is the same.

[0041] The following describes some embodiments of the heating device and atomizing equipment provided in this application with reference to the accompanying drawings.

[0042] The first aspect of this application provides a heating device 100, such as... Figure 1 , Figure 2 , Figure 3As shown, the heating device 100 includes a heating element 1 and a heating component 2. The heating element 1 has a heating cavity 11 that extends along a first direction, allowing an aerosol generating rod to be inserted when used in an atomizing device. The heating component 2 is disposed outside the heating element 1. When used in an atomizing device, the heating component 2 can be electrically connected to a power supply device to supply power to the heating component 2. The heating component 2, when energized, can heat the heating element 1 to heat the aerosol generating rod inserted into the heating cavity 11. The heating cavity 11 includes multiple heating sections connected sequentially along the first direction, such as... Figure 2 and Figure 3 In the example, in the first direction, the maximum dimension of the heating segment at least at one end of the heating element 1 in the second direction is smaller than the maximum dimension of the adjacent heating segment in the second direction. When applied to an atomizing device, the end with the relatively smaller maximum dimension in the second direction is used as the bottom end of the heating element 1, such as... Figure 4 and Figure 5 In the example, when the aerosol generating rod 500 is inserted into the heating chamber 11, the distance between the heating section with a relatively smaller maximum size in the second direction and the aerosol generating rod 500 is also smaller, and its inner wall surface is closer to the aerosol generating rod 500. Meanwhile, the distance between the adjacent heating section and the aerosol generating rod 500 in the second direction is relatively larger, which causes a certain difference in the heat received by different areas on the aerosol generating rod 500. This results in a relatively increased heat received by the area near the end of the aerosol generating rod 500 that stores the atomizing matrix, allowing the atomizing matrix to form atomization more quickly.

[0043] In this embodiment, the heating device 100, through structural improvements and optimizations, divides the heating chamber 11 of the heating element 1 into multiple heating segments in the first direction. When applied to an atomizing device, it can utilize the different spacing between the heating segments of different sizes in the second direction and the corresponding areas on the aerosol generating rod 500 to form differentiated heating in different areas of the aerosol generating rod 500 in the height direction. This increases the heating amount in the area of ​​the aerosol generating rod 500 that stores the atomizing matrix, while relatively reducing the heating amount in other areas, thereby reducing heat loss and improving heating atomization efficiency.

[0044] It is understandable that common aerosol generating rods have a cylindrical structure, and the atomizing matrix is ​​usually stored inside the aerosol generating rod near the insertion end. In practical applications, the size of each heating section in the first direction can be set according to the internal structural layout of the aerosol generating rod to maximize the heating amount of the area storing the atomizing matrix.

[0045] Additionally, it should be noted that the heating section located at the end of the heating element 1 can adopt different cross-sectional shapes. Its edge in the second direction can be a planar structure or a curved structure. When a planar structure is used, the dimensions at any position on the heating section in the second direction are equal. When a curved structure is used, for example... Figure 4 In the example, the dimensions of different positions on the heating segment in the second direction are different, but the maximum dimension in the second direction is also smaller than the dimension of the adjacent heating segment at the corresponding position in the second direction. In practical applications, multiple heating segments can be connected in a split structure to form a whole heating element 1, or they can be a one-piece molded structure.

[0046] In further embodiments of this application, such as Figures 1 to 5 In the example, the heating cavity 11 of the heating element 1 specifically includes a first heating section 111, a second heating section 112, and a third heating section 113, which are connected sequentially in a first direction. The maximum dimensions of the first heating section 111 and the third heating section 113 in a second direction are both smaller than the maximum dimension of the second heating section 112 in the second direction, and the dimensions of the first heating section 111 and the third heating section 113 in the second direction are adapted to the dimensions of the aerosol generating rod 500. When the aerosol generating rod 500 is inserted into the heating cavity 11 of the heating element 1, the first heating section 111 and the third heating section 113 can clamp the aerosol generating rod 500 in the second direction and exert a certain amount of pressure on it, thereby further accelerating the atomization speed of the internal atomizing matrix. Correspondingly, there is a gap between the second heating section 112 and the aerosol generating rod 500 in the second direction, thereby reducing the heating amount in the corresponding area and helping to reduce heat loss.

[0047] In further embodiments of this application, such as Figures 3 to 6 In the example, in the heating element 1, the second heating segment 112 has curved transition segments 1121 at both ends in the first direction, the first heating segment 111 is connected to one of the curved transition segments 1121, and the third heating segment 113 is connected to the other curved transition segment 1121, so that the first heating segment 111, the second heating segment 112 and the third heating segment 113 are connected into one unit through the curved transition segments 1121.

[0048] Furthermore, such as Figures 4 to 6In the example in [reference], the wall thickness dimensions of the first heating section 111, the second heating section 112, and the third heating section 113 of the heating element 1 are the same, so that the heat generation amounts of the three are basically the same. Thus, by changing the spacing sizes between the aerosol generating rod 500 in the second direction, the heating amounts of different regions of the aerosol generating rod 500 are changed to form differential heating. At the same time, the same wall thickness of the first heating section 111, the second heating section 112, and the third heating section (e.g., must remain unchanged). The original text to be translated is as below which wraped by : 中的示例,发热体1的第一加热段111、第二加热段112及第三加热段113的壁厚尺寸相同,使得三者的发热量基本相同,从而利用在第二方向上与气溶胶生成棒500之间的间距大小不同改变对气溶胶生成棒500不同区域的加热量,形成差异化加热。同时,第一加热段111、第二加热段112及第三加热段113的壁厚相同,也便于加工成型。

[0049] In a further embodiment of the present application, as Figures 4 to 6 In the example in [similar reference], in the heating element 1, at least one of the first heating section 111 and the third heating section 113 is an oval tube structure (for example, both shown in the figure are oval tube structures), and the second heating section 112 is a circular tube structure, so as to utilize the arc surface structures of the circle and the oval to adapt to the cylindrical aerosol generating rod 500 to increase the contact area and form a smooth transition. Among them, as Figure 4 In the example in [reference], the diameter of the circular tube structure is R, the major axis dimension of the oval tube structure is L1, the minor axis dimension is L2, and the relationship L2 < R < L1 is satisfied. Then L2 is the maximum dimension of the oval tube structure in the second direction, L1 is the maximum dimension of the oval tube structure in the third direction, and L1 and L2 are the inner wall surface dimensions of the oval, and R is the inner diameter dimension of the circle. Since the dimension of the oval tube structure in the second direction is adapted to the dimension of the aerosol generating rod 500, the diameter of the aerosol generating rod 500 should be equal to or slightly larger than L2, so that the two side walls of the oval tube structure in the second direction can clamp the aerosol generating rod 500 and form extrusion, as Figure 4 and Figure 5 shown in [reference], so that a certain spacing is maintained between the aerosol generating rod 500 and the inner side of the circular tube structure.

[0050] Specifically, as Figure 5 and Figure 2 Figure 3 Return: Figure 2 Figure 3 6 - All 7-digit tags must be preserved exactly as-is (e.g., must remain unchanged). The original text to be translated is as below which wraped by : 中的示例,发热体1的第一加热段111、第二加热段112及第三加热段113的壁厚尺寸相同,使得三者的发热量基本相同,从而利用在第二方向上与气溶胶生成棒500之间的间距大小不同改变对气溶胶生成棒500不同区域的加热量,形成差异化加热。同时,第一加热段111、第二加热段112及第三加热段113的壁厚相同,也便于加工成型。

[0049] 在本申请进一步的实施例中,如 Figures 4 to 6 中的示例,发热体1中,第一加热段111和第三加热段113中的至少一个为椭圆形管体结构(例如图中示出的两个均为椭圆形管体结构),第二加热段112为圆形管体结构,以利用圆形和椭圆形的弧面结构与圆柱形的气溶胶生成棒500相适配,以增大接触面积,形成圆滑过渡。其中,如 Figure 4 中的示例,圆形管体结构的直径为R,椭圆形管体结构的长轴尺寸为L1,短轴尺寸为L2,且满足L2<R<L1的关系,则L2即为椭圆形管体结构在第二方向上的最大尺寸,L1为椭圆形管体结构在第三方向上的最大尺寸,且L1、L2为椭圆形的内壁面尺寸、R为圆形的内径尺寸。由于椭圆形管体结构在第二方向上的尺寸与气溶胶生成棒500的尺寸相适配,则气溶胶生成棒500的直径应等于或略大于L2,以使椭圆形管体结构在第二方向上的两侧壁能够夹紧气溶胶生成棒500并形成挤压,如 Figure 4 和 Figure 5 中示出的状态,从而使得气溶胶生成棒500与圆形管体结构的内侧之间保持一定的间距。

[0050] 具体地,如 Figure 5 和 Figure 6 中的示例,第一加热段

[0051] 在本申请进一步的实施例中,如 <000014In the example, the heating element 2 of the heating device 100 is an electromagnetic induction heating element, specifically including at least one set of induction coils 21. The induction coils 21 are wound around the outside of the heating element 1 and arranged in a spiral shape in the first direction. Correspondingly, the heating element 1 adopts a cylindrical structure made of soft magnetic material (e.g., stainless steel). When the induction coils 21 are energized, they can induce an electromagnetic induction effect in the heating element 1 and generate an induced current, thereby achieving heating. Heating the heating element 1 using the electromagnetic induction heating element 2 in this embodiment has the advantages of high efficiency and energy saving, fast heating speed, and cost saving. It is also easy to control precisely and can effectively cooperate with the heating section structure of the heating element 1, which is beneficial to further improve the heating efficiency of the area where the aerosol generating rod 500 stores the atomizing matrix and promotes rapid atomization of the atomizing matrix. For example, Figure 1 In the example, both ends of the induction coil 21 have electrical connection structures 22 to form an electrical connection with the power supply device when applied in an atomizing device.

[0052] It should be noted that in practical applications, the number of induction coils 21 can be one or more, and in the first direction, the number of turns and the spacing of the induction coils 21 can be set according to actual usage requirements.

[0053] In further embodiments of this application, such as Figure 7 , Figure 8 and Figure 9 As shown, the heating device 100 also includes a support member 31 and a support base 32. The support member 31 has a mounting cavity 311 extending along a first direction. The support base 32 is disposed at one end of the support member 31, and a portion of the support base 32 extends into the mounting cavity 311 to form a detachable connection with the support member 31. The heating element 1 and the heating element 2 are disposed in the mounting cavity 311 of the support member 31 along the first direction, and the heating section with the smallest maximum size in the second direction on the heating element 1 faces the support base 32 and abuts against the support base 32. The inner sidewall of the support member 31 also has an abutment structure 312, which is close to the other end of the support member 31 opposite to the support base 32 and abuts against the other end of the heating element 1, so that the two ends of the heating element 1 are clamped by the abutment structure 312 and the support base 32 in the first direction to keep the heating element 1 stable.

[0054] Among them, such as Figure 9In the example, the support base 32 has an annular base connecting groove 323, and the bottom end of the heating element 1 extends into the base connecting groove 323 to abut against the support base 32; similarly, the abutting structure 312 also has an annular connecting groove, and the top end of the heating element 1 extends into the connecting groove of the abutting structure 312 and abuts against the abutting structure 312, so that the two ends of the heating element 1 form a continuous abutment in the circumferential direction. Specifically, both the support member 31 and the support base 32 are made of high-temperature resistant plastic material, such as PEEK (polyetheretherketone), which helps to improve service life.

[0055] Of course, the parts where the support base 32 and the contact structure 312 contact the heating element 1 are not limited to... Figure 10 and Figure 11 The annular structure shown can also be provided with multiple stepped blocks or slot structures spaced apart in the circumferential direction to form contact with the heating element 1.

[0056] Furthermore, in a specific example, such as Figure 8 In the example shown, the end of the support base 32 away from the abutment structure 312 has a snap-fit ​​structure 321. When the heating device 100 is assembled in the atomizing device, the snap-fit ​​structure 321 can engage with the bracket structure 412 of the atomizing device to connect and fix the heating device 100. The number of snap-fit ​​structures 321 can be one or more. When multiple snap-fit ​​structures 321 are provided, such as... Figure 8 As shown in the diagram, the multiple snap-fit ​​structures 321 can adopt different structural forms to adapt to the mating structures on the bracket structure 412, thereby improving the stability of the snap-fit ​​engagement. The snap-fit ​​fixing method is simple to operate during assembly, has high assembly efficiency, and is easy to disassemble.

[0057] Furthermore, in a specific example, such as Figure 9 In the example, a lead wire fixing groove 322 is provided on the outer wall of the support base 32. When the heating device 100 is assembled in the atomizing device, the lead wire fixing groove 322 is used to fix the lead wire of the power supply device, so as to prevent the lead wire from moving freely and interfering with other structures. The number of lead wire fixing grooves 322 can be two or more, depending on the actual use needs, and the specific number depends on the number of lead wires.

[0058] In further embodiments of this application, such as Figure 10 and Figure 11In the example shown, the heating device 100 also includes a heat-insulating sleeve 33. The heat-insulating sleeve 33 has a cylindrical structure and is disposed in the mounting cavity 311 of the support member 31, covering the outside of the heating element 1 to provide heat insulation for the heating element 1, thereby reducing the heat loss generated by the heating element 1 and allowing the heat to be conducted to the internal aerosol generating rod 500 as much as possible, further reducing heat loss and improving the heating efficiency of the aerosol generating rod 500. Specifically, in the first direction, the heat-insulating sleeve 33 completely covers the heating element 1 to increase the heat insulation coverage area. The heat-insulating sleeve 33 can be made of heat-insulating material, and the inner wall surface can also be provided with reflective material to further enhance the heat insulation effect.

[0059] In further implementation of this application, such as Figure 10 and Figure 11 In the example shown, the heating device 100 also includes a fixing sleeve 34. The fixing sleeve 34 is disposed at the end of the support member 31 away from the support base 32 and is fixedly connected to the support member 31. The fixing sleeve 34 is a through structure in the first direction to avoid obstructing the heating element 1 and the heating cavity 11 inside the support member 31. The aerosol generating rod 500 can pass through the fixing sleeve 34 and enter the heating cavity 11 of the heating element 1. The inner sidewall of the fixing sleeve 34 has a plurality of radial protrusions 341, which are spaced circumferentially. The size of the radial protrusions 341 is adapted to the size of the heating cavity 11 so that when the aerosol generating rod 500 is inserted into the heating cavity 11, the radial protrusions 341 can abut against the sidewall of the aerosol generating rod 500 to fix the aerosol generating rod 500, prevent the aerosol generating rod 500 from shaking, and also prevent the aerosol generating rod 500 from accidentally falling off during use.

[0060] Furthermore, such as Figure 11 In the example, the fixed sleeve 34 has an annular slot structure 342 at one end facing the support member 31. The size of the slot structure 342 is adapted to the end size of the support member 31. The support member 31 is partially inserted into the slot structure 342 to form a plug-in fit with the fixed sleeve 34, which facilitates assembly and disassembly.

[0061] In practical applications, the number of radial protrusions 341 can be set according to usage requirements, for example, it can be set as follows: Figure 10 The five shown can be set to other numbers; the radial protrusion structure 341 can be a structure with a certain degree of flexibility, such as a silicone structure, which can increase the friction when in contact with the aerosol generating rod 500.

[0062] An embodiment of the second aspect of this application provides an atomizing device 400, such as... Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, the atomizing device 400 includes a housing 410, a heating device 100 as described in any of the embodiments of the first aspect, and a power supply device 420. The housing 410 has a mounting opening 411 at one end in the first direction, for example... Figure 12 The housing 410 shown has an assembly port 411 at its top. Both the heating device 100 and the power supply device 420 are located inside the housing 410. The heating element 1 of the heating device 100 is correspondingly positioned to the assembly port 411, allowing the heating chamber 11 of the heating element 1 to communicate with the assembly port 411. The aerosol generating rod 500 can be inserted into the heating chamber 11 of the heating element 1 through the assembly port 411. The power supply device 420 is electrically connected to the heating element 2 of the heating device 100, enabling it to supply power to the heating element 2 and heat the heating element 1, thereby heating the aerosol generating rod 500 inserted into the heating chamber 11.

[0063] Among them, such as Figure 5 and Figure 15 In the example, multiple heating segments of the heating element 1 are arranged sequentially along the first direction, and at least one heating segment far from the assembly port 411 has a maximum size in the second direction that is smaller than the maximum size of the adjacent heating segment in the second direction. This is to utilize the size difference of the different heating segments in the second direction to achieve differentiated heating of different regions of the aerosol generating rod 500, thereby increasing the heating amount of the region of the aerosol generating rod 500 that stores the atomizing matrix.

[0064] The following describes a specific example of the atomizing device 400 of this application with reference to the accompanying drawings.

[0065] like Figure 1 and Figures 12 to 15 As shown, the atomizing device 400 is specifically a heat-not-burning device. The housing 410 is assembled from multiple sub-housings to facilitate the assembly of the various internal components. The top of the housing 410 has an assembly port 411. The housing 410 has a support structure 412 inside, which divides the internal space of the housing 410 into two different chambers. The heating device 100 is located in the chamber above the support structure 412, and the power supply device 420 is located in the chamber below the support structure 412.

[0066] like Figure 1 , Figure 5 , Figure 11 as well as Figure 14 , Figure 15 In the example, the heating device 100 includes a heating element 1, a heating component 2, a support component 31, a support base 32, a heat insulation sleeve 33, and a fixing sleeve 34.

[0067] Specifically, the support member 31 has a cylindrical structure and has an installation cavity 311 penetrating in the first direction. The support base 32 is provided at the bottom of the support member 31, and a part of the support base 32 extends into the installation cavity 311 and forms a detachable connection with the support member 31. Both the support member 31 and the support base 32 are made of high-temperature-resistant PEEK material. The bottom end of the support base 32 has a plurality of clamping structures 321, and the plurality of clamping structures 321 form a clamping fit with the mating structures on the bracket structure 412, so that the heating device 100 is connected and fixed to the bracket structure 412. The fixing sleeve 34 has an annular structure and is provided at the top end of the support member 31. The bottom end of the fixing sleeve 34 is provided with an annular slot structure 342, and the size of the slot structure 342 is adapted to the end size of the support member 31. The top of the support member 31 is inserted into the slot structure 342 to form a plug-in fit with the fixing sleeve 34. The inner side wall of the fixing sleeve 34 has a plurality of radially protruding structures 341 made of flexible material.

[0068] The heating element 1 and the heating member 2 are arranged in the installation cavity 311 of the support member 31 along the first direction. The top of the support base 32 has an annular base connection groove 323, and the bottom end of the heating element 1 extends into the base connection groove 323 to form an abutment with the support base 32. At a position corresponding to the top end of the heating element 1 on the inner side wall of the support member 31, there is an abutment structure 312, and the abutment structure 312 also has an annular connection groove. The top end of the heating element 1 extends into the connection groove of the abutment structure 312 and forms an abutment with the abutment structure 312. The two ends of the heating element 1 are clamped and fixed by the abutment structure 312 and the support base.

[0069] The heating cavity 11 of the heating element 1 specifically includes a first heating section 111, a second heating section 112, and a third heating section 113 connected in sequence along the first direction. Both the first heating section 111 and the third heating section 113 are elliptical tube structures, the second heating section 112 is a circular tube structure, and the wall thickness dimensions of the first heating section 111, the second heating section 112, and the third heating section 113 of the heating element 1 are the same. As Figure 4 shown in the example, the diameter of the circular tube structure is R, the major axis dimension of the elliptical tube structure is L1, L1 is the maximum dimension of the elliptical tube structure in the third direction, the minor axis dimension of the elliptical tube structure is L2, L2 is the maximum dimension of the elliptical tube structure in the second direction, and the relationship L2 < R < L1 is satisfied, and L1, L2 are the inner wall surface dimensions of the ellipse, and R is the inner diameter dimension of the circle. Among them, both ends of the second heating section 112 in the first direction have curved transition sections 1121, the first heating section 111 is connected to one of the curved transition sections 1121, and the third heating section 113 is connected to the other curved transition section 1121.

[0070] The heating element 2 specifically includes at least one set of induction coils 21, which are wound around the outer wall of the heating body 1 and arranged in a spiral shape in the first direction. Both ends of the induction coils 21 have electrical connection structures 22, which are electrically connected to the power supply device 420. Correspondingly, the heating body 1 adopts a cylindrical structure made of stainless steel. When energized, the induction coils 21 can induce an electromagnetic induction effect in the heating body 1, generating an induced current, thereby achieving heating.

[0071] The heat insulation sleeve 33 adopts a cylindrical structure. The heat insulation sleeve 33 is set in the mounting cavity 311 of the support 31 and covers the outside of the heating element 1. In the first direction, the heat insulation sleeve 33 completely covers the heating element 1 to provide heat insulation for the heating element 1 and reduce the heat generated by the heating element 1 from dissipating outward.

[0072] The power supply device 420 includes a battery 421 and an electronic control board 422. The electronic control board 422 has a control circuit and is electrically connected to the battery 421 and the heating element of the heating device to control the power supply to the heating element. The side wall of the housing also has an operation button 413, which is communicatively connected to the electronic control board 422 to facilitate the input of operation commands.

[0073] When the aerosol generating rod 500 is inserted into the heating chamber 11 of the heating element 1 through the assembly port 411, the area of ​​the aerosol generating rod 500 that stores the atomizing matrix corresponds to the third heating section 113 of the heating element 1, and the aerosol generating rod 500 is clamped by the first heating section 111 and the third heating section 113, and a certain amount of compression is applied to the aerosol generating rod 500. Figure 5 Example from the diagram. After inputting a command via operation button 413, the electronic control board 422 controls the battery 421 to supply power to the induction coil 21, causing the heating element 1 to generate an electromagnetic induction effect and heat up, thereby heating the aerosol generating rod 500. The third heating section 113 of the heating element 1 presses against the area in the aerosol generating rod 500 where the atomizing matrix is ​​stored, thereby increasing the heating amount in that area and correspondingly reducing the heating amount in the adjacent second heating section 112, allowing the heat to further act on the area where the atomizing matrix is ​​stored, thus improving the heating atomization efficiency and accelerating atomization. Simultaneously, during the heating process, the heat insulation sleeve 33 located outside the heating element 1 provides insulation, further reducing energy loss.

[0074] Furthermore, the atomizing device 400 in this embodiment also has all the beneficial effects of the heating device 100 in any of the above embodiments, which will not be repeated here.

[0075] The above examples illustrate this application only to aid in understanding the present invention and are not intended to limit the scope of the application. Those skilled in the art to which this application pertains can make several simple deductions, modifications, or substitutions based on the concept of this application.

Claims

1. A heating device, characterized in that, The heating device comprises: a heating body having a heating cavity extending through in a first direction, the heating cavity comprising a plurality of heating sections connected in sequence in the first direction, and in the first direction, the maximum dimension of the heating section at one end of the heating body in a second direction is smaller than the maximum dimension of the adjacent heating section in the second direction, the second direction being perpendicular to the first direction; and a heating element arranged outside the heating body, the heating element being electrically connected with a power supply device to heat the heating body in an energized state.

2. The heating device according to claim 1, wherein: the heating cavity comprises a first heating section, a second heating section and a third heating section connected in sequence in the first direction; in the second direction, the maximum dimensions of the first heating section and the third heating section are both smaller than the maximum dimension of the second heating section, and the dimensions of the first heating section and the third heating section in the second direction are adapted to the size of an aerosol generating rod inserted into the heating cavity to be able to clamp the aerosol generating rod and form extrusion.

3. The heating device according to claim 2, wherein: in the first direction, both ends of the second heating section have curved transition sections, the first heating section and the second heating section are connected with a corresponding one of the curved transition sections, and the dimensions of the first heating section and the second heating section in the first direction are both smaller than the dimension of the second heating section in the first direction.

4. The heating device according to claim 2, wherein: the wall thicknesses of the first heating section, the second heating section and the third heating section are the same.

5. The heating device according to claim 2, wherein: at least one of the first heating section and the third heating section is an elliptical tube structure; the second heating section is a circular tube structure, the diameter of the circular tube structure is greater than the minor axis of the elliptical tube structure and smaller than the major axis of the elliptical tube structure.

6. The heating device according to claim 1, wherein: the heating element is an electromagnetic induction heating element comprising at least one set of induction coils, the induction coils are arranged outside the heating body and are spirally arranged in the first direction, both ends of the induction coils in the first direction have electrical connection structures; the heating body is a cylindrical structure made of soft magnetic material and is adapted to heat under electromagnetic induction.

7. The heating device according to any one of claims 1 to 6, characterized in that The heating device further comprises: a support member having a mounting cavity extending through in the first direction, the inner side wall of the mounting cavity has an abutting structure, the abutting structure being close to one end of the mounting cavity; and a support base arranged at the other end of the support member opposite to the abutting structure, and part of the support base extends into the mounting cavity; wherein the heating body and the heating element are arranged in the mounting cavity, and in the first direction, one end of the heating body abuts against the support base and the other end of the heating body abuts against the abutting structure.

8. The heating device according to claim 7, wherein: The support base has a clamping structure at one end away from the abutting structure, which is used for clamping cooperation with a support structure in the atomization device; and / or, The outer side wall of the support base has a lead fixing groove.

9. The heating device of claim 7, wherein, Further comprising: A heat insulation sleeve is arranged in the mounting cavity and covers the outer side of the heat generating body. The heat insulation sleeve blocks the heat generating body in the first direction, and a preset heat insulation gap exists between the heat insulation sleeve and the heat generating body; and / or, A fixing sleeve is connected to one end of the support away from the support base. The inner side wall of the fixing sleeve is circumferentially spaced apart and has a plurality of radial protruding structures. The size of the radial protruding structures is adapted to the size of the heating cavity, and is used for abutting against the side wall of the aerosol generating rod inserted into the heating cavity.

10. An atomising device characterised in that, Comprise: A shell has an assembly opening at one end in a first direction; The heating device according to any one of claims 1 to 9 is arranged in the shell, and the heat generating body of the heating device is arranged corresponding to the assembly opening; And a power supply device is arranged in the shell and is electrically connected with the heating element of the heating device.

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