Heating assembly and aerosol generating device

Abstract

The invention discloses a heating assembly and an aerosol generating device, and the heating assembly comprises a magnetic circuit guiding body which is provided with a first guiding end and a second guiding end which are oppositely arranged; the coil is sleeved outside the magnetic circuit guiding body; the heating body is arranged between the first guiding end and the second guiding end, one end of the heating body faces the first guiding end, the other end of the heating body faces the second guiding end, the magnetic path guiding body guides magnetic lines generated by the coil to the heating body, and the heating body converts magnetic field energy formed by the magnetic lines generated by the coil into heat energy. Most of magnetic lines generated by the coil can be limited in a magnetic line loop formed by the magnetic circuit guiding body and the heating body, so that the circulating quantity of the magnetic lines in other spaces except the magnetic circuit guiding body and the heating body is reduced. Therefore, energy of a high-frequency magnetic field generated near the coil can be efficiently utilized by the heating body and converted into heat energy, the conversion efficiency is improved, and the heating efficiency of the heating body is also improved.

Description

Technical Field

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

[0002] Electromagnetic induction heating is one of the important methods for generating aerosols. However, in actual practice, electromagnetic induction heating still has the following problems: On the one hand, in some existing aerosol generating devices based on electromagnetic induction technology, the coil is wrapped around the periphery of the heating element, and there are some large gaps between the heating element and the coil. The existence of these gaps results in that when the aerosol generating device is working, only a part of the high-frequency magnetic lines of force generated by the coil passes through the heating element and causes the heating element to produce a heating effect. This part of the magnetic lines of force that passes through the heating element repeatedly passes through a large area of ​​air in the entire magnetic circuit, while the other part of the high-frequency magnetic lines of force passes through the gap between the coil and the heating element and is not used by the heating element, resulting in low energy conversion efficiency; On the other hand, the configuration of the coil wrapped around the periphery of the heating element restricts the coil to the periphery of the heating element. Since sufficient space needs to be left for other structural components, the volume occupied by the coil is large, which makes the volume of the entire aerosol generating device relatively large, and also increases the design difficulty and manufacturing cost of the aerosol generating device. Summary of the invention

[0003] In view of this, the present application provides a heating component and an aerosol generating device, aiming to improve the energy conversion efficiency of electromagnetic induction heating.

[0004] A heating assembly according to an embodiment of the present application includes:

[0005] A magnetic path guide body having a first guide end and a second guide end arranged opposite to each other;

[0006] A coil, sleeved outside the magnetic circuit guide body;

[0007] The heating element is arranged between the first guide end and the second guide end, one end of the heating element is arranged toward the first guide end, and the other end of the heating element is arranged toward the second guide end, the magnetic circuit guide body guides the magnetic lines of force generated by the coil to the heating element through the first guide end and the second guide end, and the heating element converts the magnetic field energy formed by the magnetic lines of force generated by the coil into heat energy.

[0008] Furthermore, a projection of an end face of one end of the heating element along the extension direction of the heating element at least partially falls on the end face of the first guide end, and the end face of the heating element facing the first guide end is parallel to the end face of the first guide end; a projection of an end face of the other end of the heating element along the extension direction of the heating element at least partially falls on the end face of the second guide end, and the end face of the heating element facing the second guide end is parallel to the end face of the second guide end.

[0009] Further, the end face shape of the first guide end is the same as the end face shape of the heating element close to the first guide end; and / or the end face shape of the second guide end is the same as the end face shape of the heating element close to the second guide end.

[0010] Furthermore, the end face cross-sectional area of ​​the first guide end is the same as the end face cross-sectional area of ​​the heating element close to the first guide end; and / or the end face cross-sectional area of ​​the second guide end is the same as the end face cross-sectional area of ​​the heating element close to the second guide end.

[0011] Furthermore, the magnetic path guide body also includes a first frame body, which is a non-closed ring structure with an opening, the first guide end is arranged at the opening of the first frame body, and the second guide end is arranged at the opening of the first frame body and is located on the opposite side of the first guide end.

[0012] Further, the first guide end and the second guide end are sleeved with the coil; or, the first frame is sleeved with the coil.

[0013] Furthermore, the first frame includes a first connection portion, a second connection portion, and a third connection portion which are connected in sequence, wherein the first connection portion and the third connection portion are located on the same side of the second connection portion.

[0014] Furthermore, the magnetic path guide body includes two first frame bodies, wherein an opening of one of the first frame bodies is arranged toward an opening of the other first frame body, and each of the first frame bodies is connected to the first guide end and the second guide end.

[0015] Furthermore, the magnetic path guide body includes a second frame body in an annular shape, and the inner side of the second frame body is connected to the first guide end and the second guide end.

[0016] Furthermore, the electrical conductivity of the magnetic path guide body is greater than the electrical conductivity of the heating body.

[0017] Furthermore, the magnetic path guide body is made of a material with high relative magnetic permeability and high resistivity, and the material with high relative magnetic permeability and high resistivity is a single material or a material composited from multiple single materials.

[0018] Another aspect of the present application is an aerosol generating device, comprising a power supply component, a porous oil-conducting medium, and a heating component as described above, wherein the power supply component is electrically connected to the coil, and the aerosol generating device also comprises a liquid storage chamber and an air flow channel, wherein the porous oil-conducting medium is used to transport the atomized liquid stored in the liquid storage chamber to the heating element, and the heating element is used to heat the atomized liquid to generate an aerosol, and the aerosol flows out of the aerosol generating device through the air flow channel.

[0019] The heating assembly and aerosol generating device of the embodiment of the present application have at least the following beneficial effects: the magnetic lines of force generated by the coil are guided to the heating element by the magnetic circuit guide, so that most of the magnetic lines of force generated by the coil are confined in the magnetic line of force loop formed by the magnetic circuit guide and the heating element, reducing the number of magnetic lines of force circulating in other spaces other than the magnetic circuit guide and the heating element. In this way, the energy of the high-frequency magnetic field generated near the coil can be efficiently utilized by the heating element and converted into thermal energy, which is beneficial to improve the conversion efficiency and the heating efficiency of the heating element. The magnetic lines of force of the coil are guided by the magnetic circuit guide, so that the position of the coil does not have to be fixed near the periphery of the heating element, that is, the coil can be set at any suitable position of the magnetic circuit guide. Compared with the traditional solution based on electromagnetic induction heating, the position of the coil in the embodiment of the present application is not constrained by other structural parts except the heating element and the magnetic circuit guide, which is beneficial to optimize the space.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0023] Figure 2 This is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0024] Figure 3 for Figure 1 A schematic diagram of the matching and connection of various components in a heating assembly of an aerosol generating device;

[0025] Figure 4 for Figure 2 A schematic diagram of the matching and connection of various components in a heating assembly of an aerosol generating device;

[0026] Figure 5 A schematic diagram of simulated distribution of magnetic lines of force in a heating assembly according to an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the simulated distribution of magnetic lines of force in a heating component according to an embodiment of the present application.

[0028] Reference numerals:

[0029] 110, magnetic circuit guide body; 111, first guide end; 112, second guide end; 113, first connection part; 114, second connection part; 115, third connection part; 120, coil; 130, heating element; 140, porous oil-conducting medium; 150, control component;

[0030] 200, housing;

[0031] 300, power supply component;

[0032] 400, liquid storage tank; 410, liquid storage cavity;

[0033] 500. Air flow channel. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0038] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] In one aspect, the present application discloses an aerosol generating device, see Figure 1 and Figure 2 The aerosol generating device includes a power supply component 300, a porous oil-conducting medium 140 and a heating component. The power supply component 300 is electrically connected to the coil 120. The aerosol generating device also includes a liquid storage chamber 410 and an air flow channel 500. The porous oil-conducting medium 140 is used to transport the atomized liquid stored in the liquid storage chamber 410 to the heating element 130. The heating element 130 is used to convert the magnetic field energy generated by the coil 120 into thermal energy, and use the thermal energy to heat the atomized liquid to generate an aerosol. The aerosol flows out of the aerosol generating device through the air flow channel 500. Specifically, the aerosol generating device also includes a control component 150, which is used to control the operation of various components of the aerosol generating device. Exemplarily, the control component 150 is used to control the working state of the coil 120.

[0040] In some embodiments of the present application, see Figure 1 and Figure 2 The aerosol generating device also includes a shell 200 and a liquid storage tank 400, and the power supply component 300, the porous oil-conducting medium 140, the liquid storage tank 400 and the heating component are all arranged in the shell 200, wherein the liquid storage tank 400 has a liquid storage cavity 410 for storing atomized liquid. Specifically, one end of the porous oil-conducting medium 140 is connected to the liquid storage cavity 410, and the porous oil-conducting medium 140 is also in contact with the heating element 130. In this way, the porous oil-conducting medium 140 can guide the atomized liquid in the liquid storage cavity 410 to the heating element 130. In practical applications, the porous oil-conducting medium 140 can be specifically selected as a component with liquid conveying capability such as oil-conducting cotton and porous ceramics.

[0041] Another aspect of the present application discloses a heating assembly, see Figure 3 and Figure 4 The heating component includes a magnetic circuit guide 110, a coil 120 and a heating element 130.

[0042] Specifically, the magnetic circuit guide body 110 has a first guide end 111 and a second guide end 112 that are relatively arranged; the coil 120 is sleeved on the outside of the magnetic circuit guide body 110; the heating element 130 is arranged between the first guide end 111 and the second guide end 112, one end of the heating element 130 is arranged toward the end surface of the first guide end 111, and the other end of the heating element 130 is arranged toward the end surface of the second guide end 112. The magnetic circuit guide body 110 guides the magnetic lines of force generated by the coil 120 to the heating element 130 through the first guide end 111 and the second guide end 112, and the heating element 130 converts the magnetic field energy formed by the magnetic lines of force generated by the coil 120 into heat energy.

[0043] It is worth understanding that the relative arrangement of the magnetic circuit guide body 110 having a first guide end 111 and a second guide end 112 relatively arranged means that the end face of the first guide end 110 is arranged toward the end face of the second guide end 112, and along the direction of the line between the end point of the first guide end 111 and the end point of the second guide end 112, the end face projection of the first guide end 111 at least partially falls on the end face of the second guide end 112.

[0044] The magnetic circuit guide 110 is used to guide the magnetic lines of force generated by the coil 120 to the heating element 130 through the first guide end 111 and the second guide end 112 to increase the density of the magnetic lines of force at the heating element 130, thereby improving the energy conversion efficiency.

[0045] In the heating assembly of the embodiment of the present application, the magnetic line of force generated by the coil 120 is guided to the heating element 130 by the magnetic circuit guide 110, so that most of the magnetic lines of force generated by the coil 120 are confined in the magnetic line of force loop formed by the magnetic circuit guide 110 and the heating element 130, and the number of magnetic lines of force flowing in the space other than the magnetic circuit guide 110 and the heating element 130 is reduced. In this way, the energy of the high-frequency magnetic field generated near the coil 120 can be efficiently utilized by the heating element 130 and converted into heat energy, which can effectively improve the energy conversion efficiency, thereby improving the heating efficiency of the heating element 130.

[0046] In some embodiments of the present application, the magnetic path guide body 110 is made of a material with high relative magnetic permeability (such as a relative magnetic permeability greater than 4000) and high resistivity (for example, a resistivity higher than the resistivity of structural steel). The higher the relative magnetic path rate of the magnetic path guide body 110, the stronger the ability of the magnetic path guide body 110 to guide the magnetic lines of force. In this way, it is beneficial to guide the magnetic lines of force generated by the coil 120 to the heating element 130, thereby increasing the density of the magnetic lines of force near the heating element 130, so that more magnetic lines of force pass through the heating element 130, which is beneficial to improving the efficiency of converting magnetic field energy into heat energy.

[0047] It should be noted that the material can be a single material or a material composed of multiple single materials.

[0048] As some embodiments, the magnetic circuit guide body can be made of metal material, wherein the metal material can be a uniform material composed of one or more elements such as iron, cobalt, nickel, aluminum, copper, chromium, silver and gold.

[0049] In the aerosol generating device of the embodiment of the present application, the magnetic lines of force of the coil 120 are guided by the magnetic circuit guide body 110, so that the position of the coil 120 does not have to be fixed near the heating element 130. In other words, the coil 120 can be set at any suitable position of the magnetic circuit guide body 110. Compared with the traditional aerosol generating device based on electromagnetic induction heating, the embodiment of the present application can greatly reduce the volume of the coil 120. At the same time, the position of the coil 120 is not constrained by structural parts other than the heating element 130 and the magnetic circuit guide body 110, which helps to optimize the space inside the aerosol generating device.

[0050] In some embodiments of the present application, the projection of the end face of one end of the heating element 130 along the extension direction of the heating element 130 at least partially falls on the end face of the first guide end 111, and the end face of the heating element 130 facing the first guide end is parallel to the end face of the first guide end 111; the projection of the end face of the other end of the heating element 130 along the extension direction of the heating element 130 at least partially falls on the end face of the second guide end 112, and the end face of the heating element 130 facing the second guide end 112 is parallel to the end face of the second guide end 112. In this way, it is convenient for the magnetic lines of force to pass through the heating element 130, so as to increase the number of magnetic lines of force in the heating element 130, which is beneficial to improving the energy conversion efficiency and also helps to improve the heating efficiency.

[0051] In some embodiments of the present application, the connection between the heating element 130 and the first guide end 111 and the second guide end 112 is parallel. In this way, more magnetic lines of force can pass through both ends of the heating element 130, which is beneficial to improve the energy conversion efficiency and also helps to improve the heating efficiency of the heating element 130.

[0052] In some embodiments of the present application, the end face shape of the first guide end 111 is the same as the end face shape of the heating element 130 close to the first guide end 111. Furthermore, the end face shape of the second guide end 112 is the same as the end face shape of the heating element 130 close to the second guide end 112. In this way, it is convenient for the heating element 130 to receive more magnetic lines of force, which is beneficial to improving the energy conversion efficiency and the heating efficiency of the heating element 130. It is worth understanding that the aforementioned same shape includes completely the same shape or substantially the same shape, and also includes similar shape.

[0053] In some embodiments of the present application, the end cross-sectional area of ​​the first guide end 111 is the same as the end cross-sectional area of ​​the heating element 130 close to the first guide end 111. In this way, the heating element 130 can receive more magnetic lines of force, which is beneficial to improving energy conversion efficiency and heating efficiency of the heating element 130.

[0054] In some embodiments of the present application, the end surface cross-sectional area of ​​the second guide end 112 is the same as the end surface cross-sectional area of ​​the heating element 130 close to the second guide end 112. In this way, the heating element 130 can receive more magnetic lines of force, which is conducive to improving the heating efficiency of the heating element 130.

[0055] In some embodiments of the present application, see Figure 3 and Figure 4 , the magnetic circuit guide body 110 also includes a first frame body, the first frame body is a non-closed ring structure with an opening, the first guide end 111 is arranged at the opening of the first frame body, and the second guide end 112 is arranged at the opening of the first frame body and is located on the opposite side of the first guide end 111. Specifically, the first frame body is C-shaped, the first guide end 111 is arranged at the head end of the first frame body, and the second guide end 112 is arranged at the tail end of the second frame body. When the coil 120 is working, the high-frequency magnetic field generated by the coil 120, the magnetic field energy is radiated outward through the magnetic lines of force, and the magnetic circuit guide body 110 limits most of the magnetic lines of force in the first frame body, and the magnetic lines of force pass through the magnetic circuit guide body 110 from the first guide end 111 and the second guide end 112 located at the two ends of the first frame body. Among them, the heating body 130 is arranged at a position between the first guide end 111 and the second guide end 112, and the end face of one end of the heating body 130 is arranged toward the end face of the first guide end 111, and the end face of the other end is arranged toward the end face of the second guide end 112. In this way, most of the magnetic lines derived from the magnetic circuit guide body 110 can pass through the end face of the heating body 130, which is beneficial to improving the energy conversion efficiency.

[0056] It should be noted that the coil 120 can be sleeved on the first guide end 111 and the second guide end 112, or can be sleeved on any position of the first frame, which is not limited here. In practical applications, the specific position of the coil 120 can be determined according to the spatial layout requirements. In this way, the space utilization efficiency can be effectively improved and the internal space of the aerosol generating device can be optimized.

[0057] In some embodiments of the present application, see Figure 3 and Figure 4The first frame includes a first connection portion 113, a second connection portion 114, and a third connection portion 115 which are connected in sequence, wherein the first guide end 111 is connected to the first connection portion 113, and the second guide end is connected to the third connection portion 115. There is a gap between the first guide end 111 and the second guide end 112, and the heating element 130 is disposed at the gap between the first guide end 111 and the second guide end 112.

[0058] In some embodiments of the present application, see Figure 3 The magnetic circuit guide body 110 includes two first frames, wherein the opening of one first frame is arranged toward the opening of the other first frame, and each first frame is connected with a first guide end 111 and a second guide end 112. Specifically, a gap is arranged between the two first frames, so that the aerosol generated by the heating element 130 through heating and atomization passes through the gap and flows to the airflow channel 500.

[0059] In the case where the magnetic circuit guide body 110 includes two first frames, each first frame is sleeved with a coil 120 to ensure that the energy received by the heating element 130 is sufficient to meet the heating demand, thereby ensuring the heating efficiency of the heating element 130.

[0060] In some other embodiments, when the magnetic path guide body 110 includes two first frames arranged opposite to each other, the coil 120 may also be sleeved on the two first guide ends 111 or on the two second guide ends 112 .

[0061] In some embodiments of the present application, see Figure 5 The magnetic circuit guide body 110 includes a second ring-shaped frame, the inner side of which is connected to a first guide end 111 and a second guide end 112. Specifically, the first guide end 111 and the second guide end 112 are hollow passages corresponding to the positions of the heating element 130, so that the aerosol generated by the heating element 130 can flow from the hollow passage to the airflow passage 500.

[0062] In some embodiments of the present application, the electrical conductivity of the magnetic circuit guide body 110 is greater than the electrical conductivity of the heating element 130 to ensure the guiding effect of the magnetic circuit guide body 110 on the magnetic lines of force, thereby ensuring the heating efficiency of the heating element 130.

[0063] The aerosol generating device of the embodiment of the present application is described in detail below with specific examples. It is worth noting that the following description is only an exemplary description and should not be construed as limiting the aerosol generating device of the embodiment of the present application.

[0064] See also Figure 1 , Figure 1A schematic diagram of the structure of an aerosol generating device is shown. In the figure, the aerosol generating device includes a magnetic circuit guide 110, a liquid storage tank 400, a heating element 130, a porous oil-conducting medium 140, a coil 120, a control component 150, and a power supply component 300. Specifically, the porous oil-conducting medium 140 can be a porous ceramic, oil-conducting cotton, or other component that can transport the atomized liquid from the liquid storage chamber 410 to the heating element 130; the control component 150 includes a circuit board connected to the coil 120; and the power supply component 300 can be a battery.

[0065] When the aerosol generating device is working, the battery provides electrical energy to the entire aerosol generating device, and the circuit board controls the working state of the entire aerosol generating device and the coil 120 . Figure 5 A schematic diagram of the simulated distribution of magnetic lines of force of a magnetic circuit guide body 110 and a heating element 130 in a heating component is shown. In the figure, the magnetic lines of force generated in the coil 120 will be confined in the magnetic circuit guide body 110 and pass through the heating element 130. Since most of the magnetic lines of force outside the coil 120 are confined in the magnetic circuit guide body 110 and the heating element 130, and the distance between the magnetic circuit guide body 110 and the heating element 130 is short. Therefore, the magnetic field generated by the coil 120 can be efficiently utilized by the heating element 130, so that the heating element 130 generates a higher temperature under the action of the high-frequency magnetic field, and the heat in the heating element 130 is transferred to the aerosol matrix (i.e., the atomized liquid), thereby generating an aerosol for the user to inhale.

[0066] See also Figure 2 , Figure 2 A schematic diagram of the structure of an aerosol generating device is shown. In the figure, the aerosol generating device includes a liquid storage tank 400, a magnetic circuit guide body 110, a heating element 130, a coil 120, a circuit board and a battery. Among them, the liquid storage tank 400 has a liquid storage chamber 410 for storing atomized liquid; the heating element 130 is used to guide the atomized liquid in the liquid storage chamber 410 to the heating element 130; the opening of the magnetic circuit guide body 110 is directly opposite to the air flow channel 500 of the aerosol generating device, that is, the air flow channel 500 is located on the extended side of the opening of the magnetic circuit guide body 110, so that the aerosol generated by the heating element directly flows to the air flow channel 500; the circuit board is electrically connected to the coil 120 to control the operation of the coil 120; the battery is used to provide electrical energy for components including but not limited to the coil 120 and the circuit board.

[0067] When the aerosol generating device is in operation, the magnetic lines of force generated in the coil 120 will be confined in the magnetic path guide 110 and pass through the heating element 130 . Figure 6The schematic diagram of the simulated distribution of magnetic lines of force in the magnetic circuit guide body 110 and the heating element 130 of the device is shown. In the figure, most of the magnetic lines of force outside the coil 120 are confined in the magnetic circuit guide body 110, and the distance between the magnetic circuit guide body 110 and the heating element 130 is short. Therefore, the magnetic field generated by the coil 120 can be efficiently utilized by the heating element 130, so that the heating element 130 can generate a higher temperature under the action of the high-frequency magnetic field. Due to the efficient heating effect produced by hysteresis loss, eddy current loss, and residual loss, the heat on the heating element 130 is transferred to the aerosol matrix again, thereby generating an aerosol for the user to inhale.

[0068] In the embodiment of the present application, the positional relationship between the coil 120 and the heating element 130 is no longer restricted, and thus has higher design flexibility, higher efficiency and lower manufacturing cost.

[0069] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A heating component, characterized in that: include: A magnetic path guide body having a first guide end and a second guide end arranged opposite to each other; A coil, sleeved outside the magnetic circuit guide body; A heating element is arranged between the first guide end and the second guide end, one end of the heating element is arranged toward the end surface of the first guide end, and the other end of the heating element is arranged toward the end surface of the second guide end, the magnetic circuit guide body guides the magnetic lines of force generated by the coil to the heating element through the first guide end and the second guide end, and the heating element converts the magnetic field energy formed by the magnetic lines of force generated by the coil into heat energy.

2. The heating assembly according to claim 1, characterized in that: The end surface shape of the first guide end is the same as the end surface shape of the heating element close to the first guide end; and / or The end surface shape of the second guide end is the same as the end surface shape of the heating element at one end close to the second guide end.

3. The heating assembly according to claim 2, characterized in that: The cross-sectional area of ​​the end surface of the first guide end is the same as the cross-sectional area of ​​the end surface of the heating element close to the first guide end; and / or The cross-sectional area of ​​the end surface of the second guide end is the same as the cross-sectional area of ​​the end surface of the heating element close to the second guide end.

4. The heating assembly according to any one of claims 1 to 3, characterized in that: The magnetic path guide body also includes a first frame body, which is a non-closed ring structure with an opening, the first guide end is arranged at the opening of the first frame body, and the second guide end is arranged at the opening of the first frame body and is located on the opposite side of the first guide end.

5. The heating assembly according to claim 4, characterized in that The first guide end and the second guide end are sleeved with the coil; or the first frame is sleeved with the coil.

6. The heating assembly according to claim 4, characterized in that The first frame includes a first connection portion, a second connection portion, and a third connection portion which are connected in sequence, wherein the first guide end is connected to the first connection portion, and the second guide end is connected to the third connection portion.

7. The heating assembly according to claim 4, characterized in that The magnetic path guide body includes two first frames, wherein an opening of one of the first frames is arranged toward an opening of the other first frame, and each of the first frames is connected to the first guide end and the second guide end.

8. The heating assembly according to any one of claims 1 to 3, characterized in that: The projection of the end surface of one end of the heating element along the extension direction of the heating element at least partially falls on the end surface of the first guide end, and the end surface of the heating element facing the first guide end is parallel to the end surface of the first guide end; The projection of the end surface of the other end of the heating element along the extension direction of the heating element at least partially falls on the end surface of the second guide end, and the end surface of the heating element facing the second guide end is parallel to the end surface of the second guide end.

9. The heating assembly according to any one of claims 1 to 3, characterized in that: The magnetic path guide body includes a second frame body in an annular shape, and the inner side of the second frame body connects the first guide end and the second guide end.

10. The heating assembly according to claim 1, characterized in that The electrical conductivity of the magnetic path guide body is greater than the electrical conductivity of the heating element.

11. The heating assembly according to claim 1, characterized in that The magnetic path guide body is made of a material with high relative magnetic permeability and high resistivity. The material with high relative magnetic permeability and high resistivity is a single material or a material composed of a plurality of single materials.

12. An aerosol generating device, characterized in that: It includes a power supply component, a porous oil-conducting medium and a heating component as described in any one of claims 1 to 11, the power supply component is electrically connected to the coil, the aerosol generating device also includes a liquid storage chamber and an air flow channel, the porous oil-conducting medium is used to transport the atomized liquid stored in the liquid storage chamber to the heating element, the heating element is used to heat the atomized liquid to generate an aerosol, and the aerosol flows out of the aerosol generating device through the air flow channel.

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