A bidirectional magnetic heating structure and aerosol generating device

Abstract

This invention provides a bidirectional magnetic heating structure and an aerosol generating device. The bidirectional magnetic heating structure includes a magnetic conductor and a heating element. The magnetic conductor includes a magnetic core, an electromagnetic part, and a conductive coil. The magnetic core is connected to the electromagnetic part, and the conductive coil is wound around the electromagnetic part. The magnetic core is hollow and its periphery is used to contact the aerosol generating matrix. The heating element is inserted into the magnetic core, and there are a first contact surface and a second contact surface that are planar and opposite to each other between the heating element and the magnetic core. When the magnetic conductor is energized, the conductive coil generates a magnetic field. The electromagnetic field is guided to the magnetic core through the electromagnetic part and forms a bidirectional alternating magnetic field through the first and second contact surfaces. The heating element generates heat to heat the magnetic core, thereby heating the aerosol generating matrix. This bidirectional magnetic heating structure achieves bidirectional heating of the heating element, resulting in more concentrated heat, reduced electromagnetic losses, and thus improved heating efficiency of the aerosol generating device.

Description

Technical Field

[0001] This invention relates to the field of electronic product manufacturing, and more particularly to a bidirectional magnetic heating structure and an aerosol generating device. Background Technology

[0002] With the increasing prevalence of electronic products, the demand for aerosol generators is rising. The heating structure of an aerosol generator is crucial; the aerosol-generating matrix is ​​heated by this structure to produce aerosols, which are then ingested by the user. Currently, most commercially available aerosol generators use electromagnetic induction to heat the aerosol-generating matrix. This method reduces battery consumption, but the typical structure involves winding a coil around a metal component, inserting the aerosol-generating matrix into the metal component, and then heating the matrix to produce aerosols. Alternatively, electrodes are used to create a high-frequency electric field through a high-frequency voltage to heat the metal component, which in turn heats the aerosol-generating matrix. Both methods heat the metal component to generate the aerosol-generating matrix, and most of these products use circumferential magnetic induction heating, resulting in high local electromagnetic losses and uneven heat concentration, leading to low heating efficiency. Summary of the Invention

[0003] The embodiments of the present invention provide a bidirectional magnetic heating structure and an aerosol generating device to improve the heating efficiency of the aerosol generating device.

[0004] This invention provides a bidirectional magnetic heating structure, comprising:

[0005] A magnetic conductor includes a magnetic core, an electromagnetic part, and a conductive coil. The magnetic core is connected to the electromagnetic part, and the conductive coil is wound around the electromagnetic part. The magnetic core is hollow and its periphery is used to form a matrix for contact with aerosols.

[0006] A heating element is inserted into the magnetic core, and the heating element and the magnetic core have a first contact surface and a second contact surface that are planar and opposite to each other.

[0007] When the magnetic conductor is energized, the conductive coil generates a magnetic field. The electromagnetic field is guided to the magnetic core through the electromagnetic part and forms a bidirectional alternating magnetic field through the first contact surface and the second contact surface. The heating element generates heat to heat the magnetic core, so that the magnetic core heats the aerosol to generate a matrix.

[0008] In the bidirectional magnetic heating structure provided by the present invention, the electromagnetic part includes a first connecting segment, a second connecting segment, a third connecting segment and a fourth connecting segment. The first connecting segment, the second connecting segment, the third connecting segment and the fourth connecting segment are connected and enclosed in sequence. One side of the first connecting segment is connected to the magnetic core part. The third connecting segment is spaced apart on the side of the first connecting segment away from the magnetic core part. The conductive coil is wound on the third connecting segment.

[0009] In the bidirectional magnetic heating structure provided by the present invention, the magnetic core has a through groove that extends through to the first connection, the heating element includes a heating part, the through groove is adapted to the size of the heating part, and the through groove is used to accommodate the heating part.

[0010] In the bidirectional magnetic heating structure provided by the present invention, the through slot radially penetrates both sides of the magnetic core and communicates with the outside, so that the magnetic core forms a first magnetic core and a second magnetic core, and the first magnetic core and the second magnetic core are located on both sides of the heating part.

[0011] In the bidirectional magnetic heating structure provided by the present invention, the heating element further includes a guide portion, the guide portion is connected to the heating portion, the heating portion is installed inside the magnetic core portion, and the guide portion is located outside the magnetic core portion.

[0012] In the bidirectional magnetic heating structure provided by the present invention, the top end of the guide portion is provided with at least one sharp corner.

[0013] In the bidirectional magnetic heating structure provided by the present invention, the heating element further includes a support portion, the two ends of which are respectively connected to the heating portion and the guide portion, and the support portion abuts against one end of the magnetic core portion.

[0014] In the bidirectional magnetic heating structure provided by the present invention, the heating element is an integrally formed structure.

[0015] In the bidirectional magnetic heating structure provided by the present invention, the two sides of the magnetic core that come into contact with the aerosol matrix are set to be arc-shaped or straight-sheet-shaped.

[0016] The present invention also provides an aerosol generating apparatus, comprising:

[0017] A bidirectional magnetic heating structure, wherein the bidirectional magnetic heating structure is any one of the above-mentioned bidirectional magnetic heating structures.

[0018] This invention provides a bidirectional magnetic heating structure and an aerosol generating device. The bidirectional magnetic heating structure includes a magnetic conductor and a heating element. The magnetic conductor includes a magnetic core, an electromagnetic component, and a conductive coil. The magnetic core is connected to the electromagnetic component, and the conductive coil is wound around the electromagnetic component. The magnetic core is hollow and its periphery is designed to contact the aerosol generating matrix. The heating element is inserted into the magnetic core, and there are a first contact surface and a second contact surface that are planar and opposite to each other between the heating element and the magnetic core. When the magnetic conductor is energized, the conductive coil generates a magnetic field. The electromagnetic field is guided to the magnetic core through the electromagnetic component and forms a bidirectional alternating magnetic field through the first and second contact surfaces. The heating element generates heat to heat the magnetic core, thereby heating the aerosol generating matrix. This application utilizes the electromagnetic component to uniformly guide local electromagnetic fields around the periphery and forms a bidirectional alternating magnetic field on the first and second contact surfaces to heat the heating element. The heating element then heats the magnetic core, ultimately heating the aerosol generating matrix through the magnetic core. Compared to existing technologies that directly heat aerosols to generate a matrix or heat metal parts circumferentially, this heating structure reduces electromagnetic losses, provides bidirectional heating to the heating element, and concentrates the heat, thereby improving the heating efficiency of the aerosol generator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the bidirectional magnetic heating structure in an embodiment of the present invention;

[0021] Figure 2 This is another schematic diagram of the bidirectional magnetic heating structure in an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the bidirectional magnetic heating structure in an embodiment of the present invention;

[0023] Figure 4 This is an exploded structural diagram of the bidirectional magnetic heating structure in an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of the aerosol generating device in an embodiment of the present invention;

[0025] Figure 6 This is another cross-sectional view of the aerosol generating device in an embodiment of the present invention;

[0026] Figure 7 As described in the embodiments of the present invention Figure 6 Cross-sectional view at point A;

[0027] Figures 8a to 8h This is a schematic diagram of the heating element in an embodiment of the present invention;

[0028] The labels for the attached figures are as follows:

[0029] 100. Magnetic conductor; 110. Magnetic core; 111. Through slot; 112. First magnetic core; 113. Second magnetic core; 120. Electromagnetic part; 121. First connecting section; 122. Second connecting section; 123. Third connecting section; 124. Fourth connecting section; 130. Conductive coil; 200. Aerosol generating matrix; 300. Heating element; 310. Heating part; 320. Guide part; 330. Support part; 340. First contact surface; 350. Second contact surface; 400. Circuit board; 500. Battery. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] Reference Figures 1 to 7 This document illustrates an embodiment of the bidirectional magnetic heating structure of the present invention. The bidirectional magnetic heating structure includes a magnetic conductor 100 and a heating element 300; the magnetic conductor 100 includes a magnetic core 110, an electromagnetic part 120, and a conductive coil 130. The magnetic core 110 is connected to the electromagnetic part 120, and the conductive coil 130 is wound around the electromagnetic part 120. The magnetic core 110 is hollow and its periphery is designed to contact the aerosol generating matrix 200; the heating element 300 passes through the magnetic core 110, and the heating element 300 is connected to the magnetic core 110. The magnetic core 110 has a first contact surface 340 and a second contact surface 350 that are planar and opposite to each other; wherein, when the magnetic conductor 100 is energized, the conductive coil 130 generates a magnetic field, the electromagnetic field is guided to the magnetic core 110 through the electromagnetic part 120 and forms a bidirectional alternating magnetic field through the first contact surface 340 and the second contact surface 350, and the heating element 300 generates heat to heat the magnetic core 110, so that the magnetic core 110 heats the aerosol matrix 200.

[0032] Specifically, the magnetic conductive element 100 can be ferrite or other magnetically conductive materials, which are not limited here. In this embodiment, the magnetic conductive element 100 is made of ferrite, which has high permeability at high frequencies. The conductive coil 130 is wound around the lower end of the electromagnetic part 120. The heating element 300 is made of metal materials such as iron-nickel alloy, permalloy, and stainless steel, which can play a good role in heat absorption and conduction. At the same time, the heating element 300 is sheet-shaped, and there is a first contact surface 340 and a second contact surface 350 that are planar and opposite to each other between the heating element 300 and the magnetic core part 110. When the heating element 300 is inserted into the magnetic core part 110, the local electromagnetic field generated by the conductive coil 130 can be uniformly guided to the magnetic core part 110 by utilizing the properties of the ferrite, and a bidirectional alternating magnetic field is formed by the first contact surface 340 and the second contact surface 350. Figure 7 As shown, the arrows indicate the direction of magnetic field. It can be seen that electromagnetic fields bidirectionally heat the heating element 300 from both sides of the magnetic core 110 towards the first contact surface 340 and the second contact surface 350. The heating element 300 heats the magnetic core 110, which in turn heats the aerosol generating matrix 200 fitted outside the magnetic core 110, thereby generating aerosol. This bidirectional magnetic heating structure reduces electromagnetic losses, and because the magnetic field is a bidirectional alternating magnetic field, the heating element 300 can generate heat bidirectionally from both sides, making the heat more concentrated and improving the heating efficiency of the aerosol generating device. Simultaneously, the miniaturization of the electromagnetic heating module saves space, makes it convenient for users to carry, and improves the user experience.

[0033] In one embodiment, reference is made to Figures 1 to 6As shown, the electromagnetic part 120 includes a first connection segment 121, a second connection segment 122, a third connection segment 123, and a fourth connection segment 124. The first connection segment 121, the second connection segment 122, the third connection segment 123, and the fourth connection segment 124 are sequentially connected and enclosed. One side of the first connection segment 121 is connected to the magnetic core part 110. The third connection segment 123 is spaced apart from the side of the first connection segment 121 away from the magnetic core part 110, and the conductive coil 130 is wound around the third connection segment 123. Specifically, the first connection segment 121 and the third connection segment 123 are parallel to each other, the second connection segment 122 and the fourth connection segment 124 are parallel, the first connection segment 121 is perpendicular to the second connection segment 122 and the fourth connection segment 124, and both ends of the first connection segment 121 are respectively connected to one end of the second connection segment 122 and the fourth connection segment 124. The third connection segment 123 is perpendicular to the second connection segment 122 and the fourth connection segment 124, and both ends of the third connection segment 123 are respectively connected to the other end of the second connection segment 122 and the fourth connection segment 124. Therefore, the electromagnetic part 120 forms a "hui" character shape. The conductive coil 130 is wound around the third connection segment 123, and the electromagnetic generated by the conductive coil 130 is respectively directed from the third connection segment 123 to the second connection segment 122 and the fourth connection segment 124, and then directed to the first connection segment 121 via the second connection segment 122 and the fourth connection segment 124, and finally directed to the magnetic core part 110. The structure is simple, facilitating the installation and disassembly of the conductive coil 130, and can make the heat more concentrated, improving the heating efficiency of the heating structure, thereby improving the working efficiency of the aerosol generating device.

[0034] In a specific embodiment, refer to Figures 1 to 6 As shown, both ends of the third connection segment 123 are respectively detachably connected to the second connection segment 122 and the fourth connection segment 124. Specifically, the first connection segment 121, the second connection segment 122, and the fourth connection segment 124 are of an integrally formed structure, and the connection part between the first connection segment 121 and the second connection segment 122 and the fourth connection segment 124 is arc-shaped, preventing potential safety hazards caused by the sharp angle at the connection part between the first connection segment 121 and the second connection segment 122 and the fourth connection segment 124. The connection method between the third connection segment 123 and the second connection segment 122 and the fourth connection segment 124 is diverse. In this embodiment, a protrusion is provided on the third connection segment 123 to snap the third connection segment 123 into the second connection segment 122 and the fourth connection segment 124. This connection method is simple, convenient for disassembly and installation, and enables the conductive coil 130 not to be affected by other structures, making the heating structure operate stably.

[0035] In a specific embodiment, refer to Figures 1 to 6 As shown, the magnetic core portion 110 has a through groove 111 that extends through to the first connecting section 121. The heating element 300 includes a heating portion 310. The through groove 111 is adapted to the size of the heating portion 310 and is used to accommodate the heating portion 310. Specifically, refer to... Figure 7 As shown, the heating element 310 can be in the shape of a straight sheet, a straight groove double-tailed shape, or an arc-shaped double-tailed shape, etc., and is not limited here. Since the heating element 300 and the magnetic core 110 have a first contact surface 340 and a second contact surface 350 that are planar and opposite to each other, in order to insert the heating element 300 into the magnetic core 110, the through groove 111 is set as a cuboid structure, and its size is adapted to the heating element 310. This allows the heating element 300 to be pluggably connected to the magnetic core 110, and the through groove 111 extends to the first connecting section 121, so that the heating element 310 can be inserted into the first connecting section 121. This makes the fixing of the heating element 300 and the magnetic conductor 100 more tight, the heating element 300 is not easy to fall off, and the heating element 310 can generate heat from the first connecting section 121, improving the heating efficiency.

[0036] In one embodiment, reference is made to Figure 1 and Figure 6 As shown, the through groove 111 radially penetrates both sides of the magnetic core portion 110 and communicates with the outside, causing the magnetic core portion 110 to form a first magnetic core portion 112 and a second magnetic core portion 113. The first magnetic core portion 112 and the second magnetic core portion 113 are located on both sides of the heating portion 310. Specifically, the through groove 111 divides the magnetic core portion 110 into two parts, forming a first magnetic core portion 112 and a second magnetic core portion 113. The heating portion 310 is located in the middle of the first magnetic core portion 112 and the second magnetic core portion 113. Therefore, when the heating element 300 is inserted into the magnetic core portion 110, the through groove 111 divides the magnetic core portion 110 into two parts, increasing the flexibility of the magnetic core portion 110. When the size of the heating portion 310 is slightly larger than the through groove 111, the through groove 111 can expand outward, which can tightly fix the heating portion 310. Within the magnetic core 110, the applicability of the bidirectional magnetic heating structure is broadened. Simultaneously, the first magnetic core 112 is connected to one side of the first connecting segment 121, and the second magnetic core 113 is connected to the other side of the first connecting segment 121. Therefore, the magnetic field guided by the second connecting segment 122 to the first connecting segment 121 is directly guided to the second magnetic core 113, and the magnetic field guided by the fourth connecting segment 124 to the first connecting segment 121 is directly guided to the first magnetic core 112, ensuring uniform heating on both sides of the heating section 310, concentrated heat, and high heating efficiency.

[0037] In a specific embodiment, refer to Figures 1 to 7 As shown, the heating element 300 further includes a guide portion 320, which is connected to the heating portion 310. The heating portion 310 is disposed within the magnetic core portion 110, and the guide portion 320 is located outside the magnetic core portion 110. Specifically, the heating element 300 is further provided with the guide portion 320. When the heating element 300 is inserted into the magnetic core portion 110, the heating portion 310 is placed within the magnetic core portion 110, and the bottom end of the heating portion 310 abuts against the first connecting section 121. The guide portion 320 is located outside the magnetic core portion 110. Therefore, the heating part 310 generates heat inside the magnetic core part 110, transfers the heat to the magnetic core part 110 and then conducts heat to the aerosol generating matrix 200, while the guiding part 320 can guide the aerosol generating matrix 200, which facilitates the insertion of the aerosol generating matrix 200 to be fitted on the outside of the magnetic core part 110, thereby improving the working efficiency of the aerosol generating device.

[0038] In one embodiment, reference is made to Figures 1 to 7 As shown, the guide portion 320 has at least one sharp corner at its top. Specifically, the heating element 300 is inserted into the magnetic core portion 110, the guide portion 320 is located outside the magnetic core portion 110, and the aerosol generating matrix 200 needs to be fitted onto the outside of the magnetic core portion 110. Providing the guide portion 320 with at least one sharp corner at its top facilitates the insertion of the aerosol generating matrix 200, reduces the resistance during insertion, improves the working efficiency of the aerosol generating device, and enhances the user experience.

[0039] In a specific embodiment, refer to Figures 1 to 7 As shown, the heating element 300 also includes a support portion 330, the two ends of which are connected to the heating element 310 and the guide portion 320 respectively, and the support portion 330 abuts against one end of the magnetic core portion 110. Specifically, the support portion 330 can be cuboid or arc-shaped, and the size of the support portion 330 is the same as the size of the magnetic core portion 110. When the heating element 300 is inserted into the magnetic core portion 110, the support portion 330 abuts against the top end of the magnetic core portion 110, reducing the entry of external dust and moisture into the interior of the magnetic core portion 110, preventing the heating element 310 from being affected by external influences and thus affecting the operation of the bidirectional magnetic heating structure. Furthermore, the support portion 330 can support and fix the heating element 300 in the magnetic core portion 110, preventing the heating element 300 from shaking within the magnetic core portion 110 and affecting the user experience.

[0040] In one embodiment, reference is made to Figures 1 to 7As shown, the heating element 300 is a one-piece molded structure. Specifically, this structure ensures the structural strength of the heating element 300, making it less prone to damage. At the same time, the one-piece molded structure makes it easier and faster to insert the heating element 300 into the magnetic core 110, allowing for a tighter fixation with the magnetic core 110, and also simplifies production and reduces costs.

[0041] In a specific embodiment, refer to Figure 1 and Figure 2 As shown, the two sides of the magnetic core 110 that contact the aerosol generating matrix 200 are configured as either arc-shaped or straight. Specifically, the two sides of the magnetic core 110 that contact the aerosol generating matrix 200 can be configured as either arc-shaped or straight, but the through groove 111 remains cuboid in shape, and the shape of the support portion 330 is the same as the cross-sectional shape of the top end of the magnetic core 110. Therefore, it facilitates the insertion of the aerosol generating matrix 200, making the insertion of the aerosol generating matrix 200 smoother.

[0042] In a specific embodiment, refer to Figures 8a to 8h As shown, the heating element 300 has various shapes; several shapes of the heating element 300 are illustrated here. Figure 8a Straight head Figure 8b Hammer-shaped Figure 8c It is a straight sheet. Figure 8d Mesh-like Figure 8e It is oblique-headed. Figure 8f V-shaped Figure 8g It is a straight groove double tail shape, Figure 8h The shape of the heating element 300 is arc-shaped with two tails. The shape of the heating element 300 described above is only an example and is not intended to limit the design.

[0043] This embodiment also provides an aerosol generating device, which includes a bidirectional magnetic heating structure. The bidirectional magnetic heating structure can be any one of the bidirectional magnetic heating structures provided by this invention. Since the specific structure and working principle of the bidirectional magnetic heating structure have been described in detail in the previous specification, they will not be repeated here for the sake of brevity.

[0044] The aerosol generator in this embodiment, by employing the bidirectional magnetic heating structure provided by the present invention, reduces the electromagnetic loss of the bidirectional magnetic heating structure, concentrates the heat, makes the heating of the aerosol generating matrix 200 more uniform, improves the heating efficiency of the product, and greatly optimizes the structural layout of the aerosol generator. The product has a high degree of modularity, saves space of the heating structure, and enables the aerosol generator to be made more compact.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A bidirectional magnetic heating structure, characterized in that, include: A magnetic conductor includes a magnetic core, an electromagnetic component, and a conductive coil, wherein the magnetic core is connected to the electromagnetic component. The conductive coil is wound around the electromagnetic part, and the magnetic core is hollow and its periphery is used to form a matrix for contact with the aerosol. A heating element is inserted into the magnetic core, and the heating element and the magnetic core have a first contact surface and a second contact surface that are planar and opposite to each other. When the magnetic conductor is energized, the conductive coil generates a magnetic field. The magnetic field is guided to the magnetic core through the electromagnetic part and forms a bidirectional alternating magnetic field through the first contact surface and the second contact surface. The heating element generates heat to heat the magnetic core, so that the magnetic core heats the aerosol to generate a matrix.

2. The bidirectional magnetic heating structure according to claim 1, characterized in that, The electromagnetic part includes a first connecting segment, a second connecting segment, a third connecting segment, and a fourth connecting segment. The first connecting segment, the second connecting segment, the third connecting segment, and the fourth connecting segment are connected and enclosed in sequence. One side of the first connecting segment is connected to the magnetic core part. The third connecting segment is spaced apart on the side of the first connecting segment away from the magnetic core part. The conductive coil is wound on the third connecting segment.

3. The bidirectional magnetic heating structure according to claim 2, characterized in that, The magnetic core has a through slot that extends through to the first connecting section. The heating element includes a heating section. The through slot is adapted to the size of the heating section and is used to accommodate the heating section.

4. The bidirectional magnetic heating structure according to claim 3, characterized in that, The through groove radially penetrates both sides of the magnetic core and communicates with the outside, so that the magnetic core forms a first magnetic core and a second magnetic core, which are located on both sides of the heating part.

5. The bidirectional magnetic heating structure according to claim 3, characterized in that, The heating element further includes a guide portion, which is connected to the heating portion. The heating portion is installed inside the magnetic core portion, and the guide portion is located outside the magnetic core portion.

6. The bidirectional magnetic heating structure according to claim 5, characterized in that, The guide section has at least one sharp corner at its top.

7. The bidirectional magnetic heating structure according to claim 6, characterized in that, The heating element also includes a support portion, the two ends of which are connected to the heating portion and the guide portion respectively, and the support portion abuts against one end of the magnetic core portion.

8. The bidirectional magnetic heating structure according to claim 7, characterized in that, The heating element is a one-piece molded structure.

9. The bidirectional magnetic heating structure according to claim 1, characterized in that, The two sides of the magnetic core that come into contact with the aerosol matrix are configured as either arc-shaped or straight.

10. An aerosol generating device, characterized in that, include: A bidirectional magnetic heating structure, wherein the bidirectional magnetic heating structure is the bidirectional magnetic heating structure according to any one of claims 1 to 9.

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