Heating assembly and aerosol generating device

Abstract

The utility model provides a heating assembly and an aerosol generating device. According to the invention, the plurality of electromagnetic generation elements are arranged around the periphery of the heating body and are independently arranged along the extension direction of the heating body, so that each electromagnetic generation element can work independently, and only the area corresponding to the heating body is heated, so that segmented heating of the heating body can be realized; therefore, the heat generated by the heating body can be better controlled. Secondly, the part of the first electromagnetic generating element in the direction from the first end part to the second end part of the heating body is arranged around the first end part, and the other part of the first electromagnetic generating element extends to the side, away from the second end part, of the first end part, so that the heating area of the first end part in the heating body can be reduced when the heating body is heated in a segmented manner; therefore, the heating area of the aerosol generating product located at the first end is reduced, the temperature of the aerosol can be reduced, especially the temperature of the aerosol in the previous several times of smoking can be reduced, and the use feeling of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of atomizers, and in particular to a heating component and an aerosol generating device. Background Art

[0002] Existing electromagnetic heating non-combustion devices generally use a single electromagnetic generator (coil) to heat the heating element, thereby heating the solid aerosol generating product to achieve the purpose of producing nicotine aerogel.

[0003] However, when using a single coil, it is difficult to control the heating effect of different parts of the heating element, and it is impossible to well control the atomization state of the aerosol generating product before and after heating. The entire aerosol generating product is heated, which easily leads to a high temperature of the generated aerosol. Utility Model Content

[0004] The main technical problem solved by the present application is to provide a heating component and an aerosol generating device to solve the problem of high temperature of aerosol generated in the prior art.

[0005] In order to solve the above technical problems, the first technical solution provided by the present application is: to provide a heating component for an aerosol generating device, which includes:

[0006] The heating element has a first end and a second end; the first end and the second end are arranged opposite to each other along a first direction; the first direction is parallel to the extension direction of the heating element;

[0007] An electromagnetic generating component surrounds the periphery of the heating element; wherein the electromagnetic generating component includes a plurality of independent electromagnetic generating elements arranged along the first direction, and a portion of the first electromagnetic generating element along the direction from the first end to the second end is arranged around the first end, and another portion extends to the side of the first end away from the second end.

[0008] The center position of the first electromagnetic generating element along the first direction is located on a side of the end surface of the first end close to the second end.

[0009] Wherein, the heating element is in the shape of a tube, a sheet, a column or a needle.

[0010] Among them, the heating component also includes a bracket and a plurality of limiting members, the bracket is arranged to form a accommodating cavity, and the heating element is arranged in the accommodating cavity; the electromagnetic generating component is sleeved outside the bracket; the plurality of limiting members are arranged at intervals on the outside of the bracket along the first direction, and each of the electromagnetic generating elements is located between two adjacent limiting members.

[0011] Wherein, the heating assembly further comprises a top cover, wherein the top cover is partially inserted at one end of the bracket along the first direction and abuts against the first end of the heating element;

[0012] and / or,

[0013] The heating assembly further includes a base, wherein the base portion is sleeved on one end of the bracket along the first direction and abuts against the second end of the heating element;

[0014] and / or,

[0015] The heating component also includes an isolation piece which is sleeved outside the electromagnetic generating component.

[0016] Wherein, the limiting member comprises:

[0017] A limiting protrusion on the outer side wall of the base;

[0018] and / or, a limiting protrusion on the outer side wall of the bracket;

[0019] and / or, a limiting protrusion on the outer side wall of the top cover;

[0020] And / or, a limiting protrusion on the inner side wall of the isolation piece.

[0021] Wherein, the electromagnetic generating element includes an electromagnetic induction coil; the heating element is tubular and is used to accommodate and heat the aerosol generating product.

[0022] Wherein, each of the electromagnetic induction coils has the same length; the electromagnetic induction coil comprises a plurality of turns of coil; and at least one turn of coil in the first electromagnetic generating element extends to a side of the first end away from the second end.

[0023] In order to solve the above technical problems, the second technical solution provided by the present application is to provide an aerosol generating device, which includes:

[0024] A heating assembly, comprising the above-mentioned heating assembly;

[0025] The control circuit is electrically connected to the electromagnetic generating elements of the heating assembly respectively to control each electromagnetic generating element to work independently.

[0026] In which, the control circuit is also used to control the working power of each of the electromagnetic generating elements, and control the working duration of each of the electromagnetic generating elements in different working time periods, so that each of the electromagnetic generating elements has different working durations and / or different working powers in different working time periods.

[0027] Beneficial effects of the present application: Different from the prior art, the present application provides a heating component and an aerosol generating device, wherein the heating component is used in the aerosol generating device. The heating component includes a heating body and an electromagnetic generating component. The heating body has a first end and a second end. The first end and the second end are arranged relative to each other along a first direction. The first direction is parallel to the extension direction of the heating body. The electromagnetic generating component surrounds the periphery of the heating body. The electromagnetic generating component includes a plurality of independent electromagnetic generating elements arranged along the first direction, and a portion of the first electromagnetic generating element along the direction from the first end to the second end is arranged around the first end, and the other portion extends to the side of the first end away from the second end. The present application adopts a plurality of electromagnetic generating elements arranged around the periphery of the heating body, and independently arranged along the extension direction of the heating body, so that each electromagnetic generating element can work independently and only heat the corresponding area of ​​the heating body, thereby realizing segmented heating of the heating body to better control the heat generated by the heating body. Secondly, a portion of the first electromagnetic generating element along the direction from the first end to the second end of the heating element is arranged around the first end, and the other portion extends to the side of the first end away from the second end. When the heating element is heated in sections, the heating area of ​​the first end of the heating element can be reduced, thereby reducing the heating area of ​​the aerosol generating product located at the first end, thereby reducing the temperature of the aerosol, especially the temperature of the aerosol during the first few inhalations, thereby improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of an aerosol generating device and an aerosol generating product provided by the present application;

[0030] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of an aerosol generating device and an aerosol generating product provided by the present application;

[0031] Figure 3 yes Figure 2 A schematic diagram of the local enlarged structure at E in the middle;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of an embodiment of a heating component provided by the present application;

[0033] Figure 5 yes Figure 4 A schematic diagram of the exploded structure of the heating assembly in FIG.

[0034] Figure 6 yes Figure 4 A schematic cross-sectional structure diagram of a heating component from a perspective;

[0035] Figure 7 yes Figure 4 Schematic diagram of the cross-sectional structure of the heating component from another perspective.

[0036] Description of Figure Numbers:

[0037] 100, aerosol generating device; 10, heating component; 11, heating element; 11A, first end; 11B, second end; 110, atomizing chamber; 12, electromagnetic generating component; 121, electromagnetic generating element; 122, electrical connection lead; 13, bracket; 130, accommodating chamber; 14, limiting member; 140, limiting protrusion; 141, first limiting member; 142, second limiting member; 15, top cover; 150, step portion; 16, base; 17, spacer; 170, notch structure; 20, outer shell; 21, first accommodating chamber; 22, first port; 23, outer shell; 30, inner shell; 31, second accommodating chamber; 32, second port; 33, inner shell; 40, mounting seat; 41, channel; 200, aerosol generating product. DETAILED DESCRIPTION

[0038] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0039] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] See also Figures 1 to 3 , Figure 1 is a three-dimensional structural schematic diagram of an embodiment of an aerosol generating device and an aerosol generating product provided by the present application, Figure 2 is a schematic cross-sectional structure diagram of an embodiment of an aerosol generating device and an aerosol generating product provided by the present application, Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at point E in the middle.

[0044] The present application provides an aerosol generating device 100. The aerosol generating device 100 is a heat-not-burn atomizing device. The aerosol generating device 100 is used to heat and bake an aerosol generating product 200 to release the heated aerosol of the aerosol generating product 200 in a non-burning state. The aerosol generating product 200 can be arranged in a columnar structure and inserted into the aerosol generating device 100.

[0045] The aerosol generating device 100 includes a heating component 10, a control circuit (not shown), an outer shell 20, an inner shell 30, a mounting seat 40 and a power supply (not shown). The outer shell 20 has a first receiving chamber 21 and a first port 22. The heating component 10, the control circuit, the inner shell 30, the mounting seat 40 and the power supply are all accommodated in the first receiving chamber 21. The inner shell 30 has a second receiving chamber 31 and a second port 32 arranged corresponding to the first port 22. The first port 22 and the second port 32 are used to insert the aerosol generating product 200 into the second receiving chamber 31. The mounting seat 40 is installed on the top of the inner shell 30 and has a channel 41 connected to the second receiving chamber 31. The extension direction of the channel 41 is the direction from the first port 22 to the second port 32. The aerosol generating product 200 is inserted into the second receiving chamber 31 through the first port 22, the channel 41 and the second port 32 in sequence. The control circuit is electrically connected to the power supply. The power supply is arranged on the side of the heating component 10.

[0046] In this embodiment, the power supply is arranged on the side of the heating assembly 10 away from the mounting base 40. The outer shell 20 includes two outer shells 23 arranged opposite to each other, and the two outer shells 23 clamp the inner shell 30. The inner shell 30 includes two inner shells 33 arranged opposite to each other, and the two inner shells 33 are jointly arranged to form a second receiving cavity 31.

[0047] It should be understood that in other embodiments, the outer shell 20 and the inner shell 30 may also be other structures. There is no limitation on the structural design of the outer shell 20 and the inner shell 30, and they can be selected according to actual needs.

[0048] The heating component 10 is disposed in the second receiving chamber 31 and heats and bakes the aerosol generating product 200 to generate aerosol when powered on. The heating component 10 is disposed close to the second port 32 and is located on a side of the second port 32 away from the first port 22 .

[0049] See also Figures 3 to 7 , Figure 4 is a three-dimensional structural schematic diagram of an embodiment of a heating component provided by the present application, Figure 5 yes Figure 4 Schematic diagram of the exploded structure of the heating component in Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of the heating component from one perspective, Figure 7 yes Figure 4 Schematic diagram of the cross-sectional structure of the heating component from another perspective.

[0050] The heating assembly 10 includes a heating element 11 and an electromagnetic generating assembly 12. The electromagnetic generating assembly 12 surrounds the heating element 11.

[0051] The heating element 11 has a first end 11A and a second end 11B. The first end 11A and the second end 11B are disposed opposite to each other along a first direction. The first direction is parallel to the extending direction of the heating element 11.

[0052] In some embodiments, the heating element 11 is tubular, sheet-shaped, columnar, or needle-shaped. It can be understood that the heating component 10 can adopt a needle-type, sheet-type, or circumferential heating element 11. That is, the heating element 11 can be sleeved on the periphery of the aerosol generating article 200, or can be inserted into the aerosol generating article 200.

[0053] In one embodiment, the heating element 11 is tubular and is used to accommodate and heat the aerosol generating product 200. The first end 11A of the heating element 11 is arranged near the mounting seat 40. Specifically, the heating element 11 is a hollow structure and is surrounded to form an atomizing chamber 110. The atomizing chamber 110 is connected to the channel 41 through the second port 32. The aerosol generating product 200 is inserted into the atomizing chamber 110 and is arranged close to or close to the inner wall surface of the heating element 11. After the heating element 11 generates heat, the aerosol generating product 200 located in the atomizing chamber 110 is heated and baked to form an aerosol.

[0054] In a specific embodiment, the heating element 11 is a hollow cylindrical structure, and the first direction is the axial direction of the heating element 11. The aerosol generating product 200 is solid. The aerosol generating product 200 is a cylindrical structure. The structure of the heating element 11 matches the structure of the aerosol generating product 200, so that the outer wall surface of the aerosol generating product 200 can be closely attached to or close to the inner wall surface of the heating element 11, so that the heating element 11 can better heat and bake the aerosol generating product 200 after being heated.

[0055] In some embodiments, the heating element 11 may be a hollow structure such as a rectangular structure or a truncated cone structure, as long as it can generate heat under the action of an alternating magnetic field to heat the aerosol generating product 200 located in the atomization chamber 110 .

[0056] The electromagnetic generating component 12 is electrically connected to the control circuit. The electromagnetic generating component 12 surrounds the periphery of the heating element 11, and is used to generate an alternating magnetic field when powered on, so that the heating element 11 generates eddy currents, thereby generating Joule heat. Specifically, the electromagnetic generating component 12 also includes an electrical connection lead 122, one end of the electrical connection lead 122 is electrically connected to the corresponding electromagnetic generating element 121, and the other end is electrically connected to the control circuit. It should be noted that each electromagnetic generating element 121 is matched with two electrical connection leads 122. The two electrical connection leads 122 are respectively connected to the opposite ends of the electromagnetic generating element 121 along the first direction to form a closed loop to generate a magnetic field.

[0057] The electromagnetic generating assembly 12 includes a plurality of independent electromagnetic generating elements 121 arranged along a first direction, and a portion of the first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B is arranged around the first end 11A, and another portion extends to a side of the first end 11A away from the second end 11B.

[0058] It should be noted that the first electromagnetic generating element 121 in the present application refers to the first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B.

[0059] It can be understood that the electromagnetic generating assembly 12 includes a plurality of electromagnetic generating elements 121 that are spaced and insulated, so that each electromagnetic generating element 121 can work independently of each other without interfering with each other. The plurality of electromagnetic generating elements 121 can work simultaneously or at different times, so that the heating element 11 forms a variable temperature field, so that the aerosol generating product 200 in the atomizing chamber 110 can be heated in sections. The plurality of electromagnetic generating elements 121 are arranged in sequence along the extension direction of the heating element 11, so that each electromagnetic generating element 121 only heats the area corresponding to the heating element 11, thereby achieving segmented heating of the heating element 11 to better control the heat generated by the heating element 11. The electromagnetic generating assembly 12 partially extends from the side of the first end 11A of the heating element 11 away from the second end 11B, that is, the upper end surface of the electromagnetic generating assembly 12 is higher than the end surface of the first end 11A of the heating element 11. A portion of the first electromagnetic generating element 121 located at the first end 11A of the heating element 11 in the electromagnetic generating assembly 12 is arranged around the first end 11A, and the other portion extends to the side of the first end 11A away from the second end 11B, that is, the upper end surface of the first electromagnetic generating element 121 is arranged higher than the end surface of the first end 11A of the heating element 11, so as to reduce the heating area of ​​the first end 11A of the heating element 11, thereby reducing the heating area of ​​the aerosol generating product 200 located at the first end 11A, thereby reducing the temperature of the aerosol and improving the user's experience.

[0060] Further, the center position of the first electromagnetic generating element 121 along the first direction is located on the side of the end surface of the first end 11A close to the second end 11B. It should be understood that the magnetic field generated by the electromagnetic generating element 121 is concentrated at the center position of the electromagnetic generating element 121 along the first direction, so that the temperature of the heating area of ​​the heating element 11 corresponding to the middle position of the electromagnetic generating element 121 is the highest.

[0061] The first electromagnetic generating element 121 is designed to be located at the center position along the first direction on the side of the end face of the first end 11A close to the second end 11B, so that the temperature of the heating area of ​​the first end 11A of the heating element 11 is relatively high, which can fully heat the aerosol generating product 200 there, and improve the taste of the aerosol. Secondly, while ensuring that the temperature of the heating area of ​​the first end 11A of the heating element 11 is relatively high, ensure that the heating area of ​​the first end 11A of the heating element 11 can generate a sufficient amount of aerosol. If the heating area of ​​the first end 11A of the heating element 11 is too small, it is easy to cause insufficient amount of aerosol to be generated; if the heating area of ​​the first end 11A of the heating element 11 is too large, it is easy to cause the temperature of the generated aerosol to be too high, affecting the user's experience.

[0062] In some specific embodiments, the electromagnetic generating element 121 includes an electromagnetic induction coil. Each electromagnetic induction coil has the same length. The electromagnetic induction coil includes a plurality of turns. At least one turn of the coil in the first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B extends to the side of the first end 11A away from the second end 11B. The number of turns, coil diameter, and coil material of the electromagnetic induction coil are not limited here, and are selected according to actual needs.

[0063] In this embodiment, the electromagnetic generating assembly 12 includes two electromagnetic generating elements 121, and the electromagnetic generating elements 121 include induction coils. One turn of the coil in the first electromagnetic generating element 121 extends to a side of the first end 11A away from the second end 11B.

[0064] It should be understood that there may be three or more electromagnetic generating elements 121 . The number of electromagnetic generating elements 121 is related to the length of the heating element 11 and the length of each electromagnetic generating element 121 .

[0065] The heating assembly 10 further includes a bracket 13, which is surrounded by a receiving cavity 130, and the heating element 11 is disposed in the receiving cavity 130. The electromagnetic generating assembly 12 is sleeved outside the bracket 13. In other words, the bracket 13 is disposed between the electromagnetic generating assembly 12 and the heating element 11.

[0066] The heating assembly 10 further includes a plurality of stoppers 14. The plurality of stoppers 14 are arranged at intervals on the outer side of the bracket 13 along the first direction, and each electromagnetic generating element 121 is located between two adjacent stoppers 14. The electromagnetic generating element 121 is limited in the first direction by the stoppers 14. The plurality of stoppers 14 can be arranged on the same component or on different components, and it is only necessary to ensure that each electromagnetic generating element 121 is located between two adjacent stoppers 14 arranged in the first direction, and the electromagnetic generating element 121 can be limited in the first direction.

[0067] In some embodiments, the heating component 10 further includes a top cover 15, which is partially inserted into one end of the bracket 13 along the first direction and abuts against the first end 11A of the heating element 11; and / or, the heating component 10 further includes a base 16, which is partially sleeved on one end of the bracket 13 along the first direction and abuts against the second end 11B of the heating element 11; and / or, the heating component 10 further includes an isolating member 17, which is sleeved outside the electromagnetic generating member 12. It can be understood that the heating component 10 includes at least one of the top cover 15, the base 16 and the isolating member 17.

[0068] In one embodiment, the heating assembly 10 further includes a top cover 15, a base 16 and an isolating member 17. The top cover 15 is partially inserted at one end of the bracket 13 along the first direction so that the top cover 15 is partially located in the accommodating cavity 130. The end of the top cover 15 located in the accommodating cavity 130 is provided with a step portion 150, and the step portion 150 abuts against the first end 11A of the heating element 11. The base 16 is partially sleeved at the other end of the bracket 13 along the first direction. The end of the top cover 15 sleeved at the bracket 13 is provided with a step portion 150, and the step portion 150 abuts against the second end 11B of the heating element. The step portion 150 of the top cover 15 and the step portion 150 of the base 16 clamp and fix the heating element 11 in the first direction. The isolating member 17 is sleeved on the periphery of the electromagnetic generating assembly 12. Specifically, the isolating member 17 is sleeved on the periphery of the electromagnetic generating assembly 12 to increase the inductance, improve the heating rate, and prevent magnetic leakage from affecting the operation of electronic components and causing harm to the human body. The isolating member 17 is columnar. The height of the isolating member 17 is greater than the height of the electromagnetic generating assembly 12 to prevent magnetic leakage. The height of the isolating member 17 is adapted to the height of the bracket 13. The isolating member 17 is not limited to manganese-zinc ferrite material, and it can be sintered by preparing ferric oxide and one or more other metal oxides (for example: nickel oxide, zinc oxide, manganese oxide, magnesium oxide, barium oxide, strontium oxide, etc.). There is no restriction on the thickness of the isolating member 17 here, and it is selected according to actual needs. A notch structure 170 is provided on the isolating member 17. The electrical connection lead 122 passes through the notch structure 170 to be connected to the power supply.

[0069] It should be understood that in other embodiments, the top cover 15 may be partially sleeved on one end of the bracket 13 along the first direction. The base 16 may be partially inserted on one end of the bracket 13 along the first direction.

[0070] It should be noted that “A and / or B” in the present application means including only A, or only B, or including both A and B.

[0071] In some embodiments, the limiting member 14 includes: a limiting protrusion 140 on the outer wall of the base 16; and / or a limiting protrusion 140 on the outer wall of the bracket 13; and / or a limiting protrusion 140 on the outer wall of the top cover 15; and / or a limiting protrusion 140 on the inner wall of the isolation member 17. One limiting member 14 may correspond to one limiting protrusion 140, or may correspond to multiple limiting protrusions 140. When the limiting protrusion 140 is an annular protrusion circumferentially surrounding the side wall, one limiting member 14 corresponds to one limiting protrusion 140. When the limiting protrusion 140 is a convex block protruding from the side wall, and multiple convex blocks are arranged at intervals and circumferentially surrounding the side wall of the same component, one limiting member 14 corresponds to multiple limiting protrusions 140. When only one such protrusion is arranged on the side wall of a certain component, one limiting member 14 corresponds to one limiting protrusion 140.

[0072] In this embodiment, the limiting member 14 includes a limiting protrusion 140 provided on the outer wall of the base 16 and a limiting protrusion 140 provided on the outer wall of the bracket 13. The plurality of limiting members 14 are respectively defined as a first limiting member 141 and a second limiting member 142. The first limiting member 141 includes a limiting protrusion 140 provided on the outer wall of the base 16, and the second limiting member 142 includes a limiting protrusion 140 provided on the outer wall of the bracket 13. The first limiting member 141 includes two limiting protrusions 140 that are symmetrical and spaced apart along the axial direction of the heating element 11, that is, the two limiting protrusions 140 are both protrusions that protrude from the outer wall of the base 16 and extend radially along the heating element 11. There are multiple second limiting members 142, and some of the second limiting members 142 include multiple limiting protrusions 140 that are spaced apart and circumferentially surround the outer wall of the bracket 13, that is, the limiting protrusion 140 is a convex block that protrudes from the outer wall of the bracket 13 and extends radially along the heating element 11. Some of the second limiting members 142 include limiting protrusions 140 that circumferentially surround the outer wall of the bracket 13, that is, the limiting protrusion 140 is an annular protrusion. The first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B is located between two second limiting members 142 that are adjacently arranged along the first direction. The second electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B is arranged between the first limiting member 141 and the second limiting member 142 that are adjacently arranged along the first direction.

[0073] The present application provides a heating component 10 for an aerosol generating device 100. The heating component 10 includes a heating element 11 and an electromagnetic generating component 12. The heating element 11 has a first end 11A and a second end 11B. The first end 11A and the second end 11B are arranged relatively to each other along a first direction. The first direction is parallel to the extension direction of the heating element 11. The electromagnetic generating component 12 surrounds the periphery of the heating element 11. The electromagnetic generating component 12 includes a plurality of independent electromagnetic generating elements 121 arranged along the first direction, and a portion of the first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B is arranged around the first end 11A, and another portion extends to a side of the first end 11A away from the second end 11B. The present application adopts a plurality of electromagnetic generating elements 121 which are arranged around the periphery of the heating element 11 and are independently arranged along the extension direction of the heating element 11, so that each electromagnetic generating element 121 can work independently and only heat the corresponding area of ​​the heating element 11, thereby realizing segmented heating of the heating element 11 to better control the heat generated by the heating element 11. Secondly, part of the first electromagnetic generating element 121 along the direction from the first end 11A to the second end 11B of the heating element 11 is arranged around the first end 11A, and the other part extends to the side of the first end 11A away from the second end 11B. When the heating element 11 is heated in segments, the heating area of ​​the first end 11A of the heating element 11 can be reduced, thereby reducing the heating area of ​​the aerosol generating product 200 located at the first end 11A, thereby reducing the temperature of the aerosol and improving the user's experience.

[0074] The control circuit is electrically connected to the electromagnetic generating elements 121 of the heating assembly 10 respectively, so as to control each electromagnetic generating element 121 to work independently.

[0075] Specifically, the control circuit is also used to control the working power of each electromagnetic generating element 121, and control the working duration of each electromagnetic generating element 121 in different working periods, so that each electromagnetic generating element 121 has different working durations and / or different working powers in different working periods.

[0076] The working period refers to the time from the start of heating to the complete consumption of an aerosol generating article 200. The aerosol generating article 200 can be heated from the position where the aerosol generating article 200 is located at the first end 11A of the heating element 11, or from the position where the aerosol generating article 200 is located at the second end 11B of the heating element 11, which is not limited here and can be selected according to actual needs.

[0077] The control circuit controls the working time of each electromagnetic generating element 121 in different working time periods, so that each electromagnetic generating element 121 has different working time and / or different working power in different working time periods. It can be understood that when heating a certain section of the aerosol generating product 200, only one electromagnetic generating element 121 can be working, or multiple electromagnetic generating elements 121 can be working at the same time. When multiple electromagnetic generating elements 121 are working at the same time, the working power of each electromagnetic generating element 121 can be the same, different, or partially the same. When heating this section of the aerosol generating product 200, the working time of each electromagnetic generating element 121 can be the same, different, or partially the same.

[0078] The present application controls each electromagnetic generating element 121 to work independently through a control circuit, and can heat the heating element 11 in sections, thereby controlling the segmented heating of the aerosol generating product 200 and controlling the atomization state of the front and rear sections of the aerosol generating product 200.

[0079] The above are only implementation methods of the present application, and are not intended to limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating assembly for an aerosol generating device, characterized in that: include: The heating element has a first end and a second end; the first end and the second end are arranged opposite to each other along a first direction; the first direction is parallel to the extension direction of the heating element; An electromagnetic generating component surrounds the periphery of the heating element; wherein the electromagnetic generating component includes a plurality of independent electromagnetic generating elements arranged along the first direction, and a portion of the first electromagnetic generating element along the direction from the first end to the second end is arranged around the first end, and another portion extends to the side of the first end away from the second end.

2. The heating assembly according to claim 1, characterized in that The center position of the first electromagnetic generating element along the first direction is located on a side of the end surface of the first end portion close to the second end portion.

3. The heating assembly according to claim 2, characterized in that The heating element is in the shape of a tube, a sheet, a column or a needle.

4. The heating assembly according to claim 1, characterized in that The heating component also includes a bracket and a plurality of limiting members, the bracket is arranged to form a containing cavity, and the heating element is arranged in the containing cavity; the electromagnetic generating component is sleeved outside the bracket; the plurality of limiting members are arranged at intervals on the outside of the bracket along the first direction, and each of the electromagnetic generating elements is located between two adjacent limiting members.

5. The heating assembly according to claim 4, characterized in that The heating assembly further includes a top cover, wherein the top cover is partially inserted at one end of the bracket along the first direction and abuts against the first end of the heating element; and / or, The heating assembly further includes a base, wherein the base portion is sleeved on one end of the bracket along the first direction and abuts against the second end of the heating element; and / or, The heating component also includes an isolation piece which is sleeved outside the electromagnetic generating component.

6. The heating assembly according to claim 5, characterized in that The limiting member comprises: A limiting protrusion on the outer side wall of the base; and / or, a limiting protrusion on the outer side wall of the bracket; and / or, a limiting protrusion on the outer side wall of the top cover; And / or, a limiting protrusion on the inner side wall of the isolation piece.

7. The heating assembly according to any one of claims 1 to 6, characterized in that: The electromagnetic generating element comprises an electromagnetic induction coil; the heating element is tubular and is used to contain and heat the aerosol generating product.

8. The heating assembly according to claim 7, characterized in that Each of the electromagnetic induction coils has the same length; the electromagnetic induction coil includes a plurality of turns of coil; at least one turn of coil in the first electromagnetic generating element extends to a side of the first end away from the second end.

9. An aerosol generating device, characterized in that: include: A heating assembly, comprising the heating assembly according to any one of claims 1 to 8; The control circuit is electrically connected to the electromagnetic generating elements of the heating assembly respectively to control each electromagnetic generating element to work independently.

10. The aerosol generating device according to claim 9, characterized in that: The control circuit is also used to control the working power of each of the electromagnetic generating elements, and control the working duration of each of the electromagnetic generating elements in different working time periods, so that each of the electromagnetic generating elements has different working durations and / or different working powers in different working time periods.

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