Electromagnetic induction assembly, heating module and aerosol generating device

Abstract

The utility model discloses an electromagnetic induction assembly, a heating module and an aerosol generating device. The electromagnetic induction assembly comprises a base body and an electric conductor, a containing groove is formed in the base body, and the containing groove spirally extends in the axial direction of the base body; the conductor is arranged in the accommodating groove and extends along the extension path of the accommodating groove; wherein the cross section of the conductor has a first size and a second size, the first size is the maximum size in the axial direction of the conductor, the second size is the maximum size in the radial direction of the conductor, and the first size is equal to the second size. According to the electromagnetic induction assembly, the electric conductor is arranged in the containing groove of the base material, the contact area between the electric conductor and other non-heated parts is reduced, and therefore heat conduction loss is reduced, the energy utilization rate is increased, and the heating efficiency of the aerosol generating device is improved. In addition, the first size and the second size of the cross section of the conductor are equal, electromagnetic coupling is increased, and the conversion efficiency of the electromagnetic induction assembly is improved.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and more specifically, to an electromagnetic induction component, a heating module and an aerosol generating device. Background Art

[0002] In the related art, an aerosol generating device based on electromagnetic induction heating usually uses a conductive wire to be wound on a heat-resistant substrate to form a solenoid coil, and a heating element is arranged in the solenoid coil. When the solenoid coil is connected to an alternating current, an induced magnetic field is generated. The heating element is excited by the induced magnetic field to generate heat for heating atomization. An insulating heat-insulating structure is also provided outside the coil and the heating element for protection. However, the contact area between the coil and the insulating heat-insulating structure with poor thermal conductivity is large, and the heat generated by electromagnetic induction is easily lost by conduction, making it difficult to be effectively used for atomization heating, thereby reducing the overall heating efficiency. Utility Model Content

[0003] The embodiments of the present application provide an electromagnetic induction component, a heating module and an aerosol generating device, and are at least used to improve the problem of heat conduction loss.

[0004] The electromagnetic induction component of the embodiment of the present application includes a substrate and a conductor. The substrate is formed with a receiving groove, which extends in a spiral shape along the axial direction of the substrate. The conductor is arranged in the receiving groove and extends along the extension path of the receiving groove.

[0005] The cross section of the conductor has a first size and a second size, the first size is the maximum size along the axial direction of the conductor, the second size is the maximum size along the radial direction of the conductor, and the first size is equal to the second size.

[0006] The electromagnetic induction component of the embodiment of the present application is arranged in the receiving groove of the substrate by the conductor, which reduces the contact area between the conductor and other non-heated parts, thereby reducing heat conduction losses, improving energy utilization, and improving the heating efficiency of the aerosol generating device. In addition, the size of the conductor cross section along the axial direction of the induced magnetic field is equal to the size along the axial direction perpendicular to the induced magnetic field, which is conducive to increasing electromagnetic coupling and improving the conversion efficiency of the electromagnetic induction component.

[0007] In some embodiments, the conductor is completely in contact with the groove surface of the receiving groove.

[0008] In this way, the conductor is completely attached to the groove surface of the receiving groove, so that the conductor and the substrate are closely combined to form an integrated structure, thereby improving the structural reliability of the electromagnetic induction component, reducing the adverse temperature control effect caused by thermal deformation, and at the same time helping to reduce the volume of the electromagnetic induction component, thereby reducing the product size. In addition, the consistency of batch production of electromagnetic induction components is better.

[0009] In some embodiments, the substrate is a hollow cylindrical structure, the substrate includes an outer wall surface and an inner wall surface which are opposite to each other along the radial direction of the substrate, and the receiving groove is formed on the outer wall surface or the inner wall surface.

[0010] In this way, the base of the hollow cylindrical structure can provide space for other devices and structures, reducing the weight and overall volume of the electromagnetic induction component.

[0011] In some embodiments, the conductor is a film layer, and the conductor is disposed on the groove surface of the receiving groove.

[0012] In this way, by forming the conductor into a film layer on the groove surface of the receiving groove, the thermal deformation of the conductor is reduced, thereby improving the temperature control accuracy of the electromagnetic induction heating process, and helping to reduce the volume of the electromagnetic induction component and ensure the consistency of mass production of the electromagnetic induction component.

[0013] In some embodiments, the receiving groove is formed with a notch, and the width of the notch along the axial direction of the base body is greater than the width of the groove bottom of the receiving groove.

[0014] In this way, by setting the width of the axial notch of the substrate to be greater than the width of the groove bottom, it is beneficial to form a conductive film layer that extends along the extension path of the receiving groove and completely fits the groove surface of the receiving groove.

[0015] In some embodiments, the substrate is a hollow cylindrical structure, the substrate includes an outer wall surface and an inner wall surface radially opposite to each other, the receiving groove is formed between the outer wall surface and the inner wall surface, and the conductor is embedded in the receiving groove.

[0016] In this way, the receiving groove is formed between the outer wall surface and the inner wall surface, and the conductor is embedded in the receiving groove, thereby protecting the conductor, reducing the contact between the conductor and other elements not subjected to induction heating, and improving the heat conduction efficiency.

[0017] In some embodiments, the electrical conductor completely fills the receiving groove.

[0018] In this way, by filling the receiving groove with the conductor, it is helpful to ensure the consistency of the conductor batch processing, reduce the thermal deformation of the electromagnetic induction component, and improve the temperature control accuracy.

[0019] 8. In some embodiments, the electrical conductor is a solid structure or a hollow structure.

[0020] Thus, the conductor is a solid structure, which makes it difficult for the conductor to be deformed by heat, which is beneficial to improving the temperature control effect. The conductor is a hollow structure, which further reduces the weight of the conductor, which is beneficial to the lightweight of the product.

[0021] The heating module of the embodiment of the present application is used to heat the atomized medium to generate aerosol. The heating module includes the electromagnetic induction component and the heating element of any of the above embodiments, wherein the heating element is arranged on the inner side of the conductor, and the heating element is used to generate heat under electromagnetic excitation when the conductor is connected to an alternating current to generate an induced magnetic field.

[0022] The aerosol generating device of the embodiment of the present application is used to generate aerosol, and includes the electromagnetic induction component or heating module of the above embodiment.

[0023] 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

[0024] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a schematic structural diagram of an electromagnetic induction component according to an embodiment of the present application;

[0026] Figure 2 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to an embodiment of the present application;

[0027] Figure 3 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to another embodiment of the present application;

[0028] Figure 4 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0029] Figure 5 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0030] Figure 6 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0031] Figure 7 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0032] Figure 8 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0033] Fig. 9 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0034] Fig.10 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0035] Fig.11 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0036] Fig.12 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0037] Fig.13 is a three-dimensional cross-sectional schematic diagram of an electromagnetic induction component according to yet another embodiment of the present application;

[0038] Fig.14 is a three-dimensional cross-sectional schematic diagram of a heating module according to an embodiment of the present application;

[0039] Fig.15 It is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application.

[0040] Description of main component symbols:

[0041] Electromagnetic induction component 100, substrate 10, receiving groove 11, groove surface 111, notch 113, groove bottom 115, hollow area 12, outer wall surface 14, inner wall surface 16, conductor 20, first size a, second size h;

[0042] The aerosol generating device 1000 , the heating module 200 , the heating element 210 , the housing 300 , and the nozzle 400 . DETAILED DESCRIPTION

[0043] 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.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0048] See also Figure 1 and Figure 2 The electromagnetic induction component 100 of the embodiment of the present application includes a substrate 10 and a conductor 20. The substrate 10 is formed with a receiving groove 11, and the receiving groove 11 extends spirally along the axial direction of the substrate 10; the conductor 20 is arranged in the receiving groove 11 and extends along the extension path of the receiving groove 11.

[0049] The cross section of the conductor 20 has a first dimension a and a second dimension h, wherein the first dimension a is the maximum dimension along the first direction, and the second dimension h is the maximum dimension along the radial direction of the conductor 20 . The first dimension a is equal to the second dimension h, that is, a=h.

[0050] The electromagnetic induction component 100 of the embodiment of the present application is arranged in the receiving groove 11 of the substrate by the conductor 20, which reduces the contact area between the conductor 20 and other non-heated parts, thereby reducing heat conduction losses, improving energy utilization, and improving the heating efficiency of the aerosol generating device 1000. In addition, the size of the cross section of the conductor 20 along the axial direction of the induced magnetic field is equal to the size along the axial direction perpendicular to the induced magnetic field, which is conducive to increasing electromagnetic coupling and improving the conversion efficiency of the electromagnetic induction component 100.

[0051] Specifically, the receiving groove 11 extends in a spiral shape along the axial direction of the substrate 10, the conductor 20 is arranged in the receiving groove 11 and extends along the extension path of the receiving groove 11, and the conductor 20 spirals in the axial direction of the substrate 10 inside the substrate 10. The spiral conductor 20 can be equivalent to a spiral coil, and can form a uniform alternating magnetic field after an alternating current is passed through. Among them, the central axis of the alternating magnetic field passes through the central axis of the spiral coil, which can also be said that the axial direction of the alternating magnetic field is the same as the axial direction of the conductor, that is, the axial direction of the substrate 10.

[0052] The conductor 20 may be disposed in close contact with the receiving groove 11 , or may be installed in the receiving groove 11 by other fixing members without contacting the groove surface 111 of the receiving groove 11 .

[0053] It should be noted that the cross section of the conductor 20 refers to the cross section of the conductor 20 along the direction perpendicular to the extension path of the conductor 20, and the cross section of the receiving groove 11 refers to the cross section of the receiving groove 11 along the direction perpendicular to the extension path of the receiving groove 11, that is, the direction perpendicular to the extension path of the conductor 20. For the convenience of explanation, the axial direction of the conductor 20, that is, the axial direction of the substrate 10, the axial direction of the spiral extension path of the receiving groove 11, and the axial direction of the alternating magnetic field formed when the conductor 20 passes alternating current, is defined in this application as the first direction; the radial direction of the conductor 20, that is, the radial direction of the substrate 10, the radial direction of the spiral extension path of the receiving groove 11, and the direction perpendicular to the axial direction of the alternating magnetic field, is the second direction. It is easy to understand that the first direction is perpendicular to the second direction.

[0054] like Figure 2 As shown, the first dimension a can be the distance between the two farthest endpoints of the cross section of the conductor 20 in the first direction, and the size of the first dimension a has nothing to do with the side length, straightness, and extension direction of the cross section of the conductor 20 in the first direction. Similarly, the second dimension h is the distance between the two farthest endpoints of the cross section of the conductor 20 in the second direction, and the size of the first dimension a has nothing to do with the side length, straightness, and extension direction of the cross section of the conductor 20 in the second direction. Therefore, the present application does not limit the cross-sectional shape of the conductor 20, and the cross section of the conductor 20 can be a variety of shapes such as a trapezoid, triangle, circle, ring, semicircle, arch, square, rhombus, polygon, or other irregular shapes that satisfy the first dimension a and the second dimension h are equal.

[0055] The substrate 10 can be made of a high temperature resistant non-metallic material, for example, the substrate 10 can be made of plastic, ceramic, quartz, etc. In some embodiments, considering the connection stability of the conductor 20 attached to the surface of the substrate 10, and the cycle life and reliability of the electromagnetic induction component 100 under thermal stress, the substrate 10 can be made of a high temperature resistant plastic material such as PEEK (polyetheretherketone) material and polyimide (PI) material.

[0056] See also Figure 2 and Figure 8 In some embodiments, the conductor 20 is completely attached to the groove surface 111 of the receiving groove 11 .

[0057] In this way, the conductor 20 is completely attached to the groove surface 111 of the receiving groove 11, so that the conductor 20 is closely combined with the substrate to form an integrated structure, thereby improving the structural reliability of the electromagnetic induction component 100, reducing the adverse temperature control effect caused by thermal deformation, and at the same time helping to reduce the volume of the electromagnetic induction component 100, thereby reducing the product size. In addition, the consistency of the batch production of the electromagnetic induction component 100 is better.

[0058] Specifically, the conductor 20 may be a film structure or a three-dimensional structure, and at least one side wall of the conductor 20 or the outer surface of the conductor 20 is opposite to and completely fits with the groove surface 111 of the receiving groove 11. The conductor 20 completely fits with the groove surface 111 of the receiving groove 11 means that the conductor 20 and the groove surface 111 of the receiving groove 11 are tightly connected, and even part of the conductor 20 can be fused with part of the substrate 10 in the receiving groove 11 at the atomic or molecular level, and there is no gap or interval between the conductor 20 and the groove surface 111 of the receiving groove 11, and the conductor 20 and the substrate 10 are connected to form an integral structure through the conductor 20 and the groove surface 111 of the receiving groove 11.

[0059] The conductor 20 is completely attached to the groove surface 111 of the receiving groove 11, and the cross-sectional shape of the conductor 20 matches the cross-sectional shape of the receiving groove 11. Figure 2 , the conductor 20 is a film structure and is attached to the groove surface 111 of the receiving groove 11. The cross-sectional shape of the conductor 20 is consistent with the contour shape of the groove surface 111 of the receiving groove 11 in the direction perpendicular to the extension path of the conductor 20. The maximum dimension of the receiving groove 11 along the first direction is equal to the first dimension a, and the maximum dimension of the receiving groove 11 along the second direction is equal to the second dimension h. For another example, referring to Figure 8 The conductor 20 is a three-dimensional structure and is filled in the receiving groove 11. The outer surface of the conductor 20 is attached to the groove surface 111 of the receiving groove 11. The outer contour of the cross section of the conductor 20 is the same as the cross section of the receiving groove 11 and has the same size.

[0060] See also Figure 1 , Figure 2 and Figure 8 In some embodiments, the substrate 10 is a hollow cylindrical structure, the substrate 10 includes an outer wall surface 14 and an inner wall surface 16 which are opposite to each other along the radial direction of the substrate 10 , and the receiving groove 11 is formed on the outer wall surface 14 or the inner wall surface 16 .

[0061] In this way, the base 10 of the hollow columnar structure can provide space for other devices and structures, thereby reducing the weight and the overall volume of the electromagnetic induction component 100 .

[0062] Specifically, the inner wall surface 16 of the substrate 10 surrounds and forms a hollow area 12 of the substrate 10. The hollow area 12 of the substrate 10 can penetrate the upper and lower end surfaces of the substrate 10, and can be located at the center of the second direction. The cross-sectional shape of the substrate 10 along the second direction can be a variety of shapes such as a circle, an ellipse, a racetrack, a triangle, a quadrilateral, a polygon, etc., and the present application does not limit this. Exemplarily, the substrate 10 is a hollow cylindrical structure, and the cross-sections of the inner wall surface 16 and the outer wall surface 14 of the substrate 10 along the second direction are concentric circles, and the cross-sectional shape of the substrate 10 along the first direction is two rectangles arranged at intervals along the second direction. Among them, the longer the length of the inner wall surface 16 along the first direction, the more conducive to electromagnetic coupling.

[0063] In some embodiments, since the conductor 20 extends spirally along the axial direction of the substrate 10, that is, in the first direction, the central axis of the alternating magnetic field formed by the conductor 20 passes through the hollow area 12 of the substrate 10 and the magnetic field intensity is relatively large in the hollow area 12. Placing the induced heating body in the hollow area 12 is beneficial to increase electromagnetic coupling and improve the conversion efficiency of electromagnetic heating.

[0064] The depth direction of the receiving groove 11 may be consistent with the second direction, that is, the radial direction of the base 10. The receiving groove 11 may be an open groove. In the case where the receiving groove 11 is formed on the outer wall surface 14, refer to Figure 2-Figure 4 The slot 113 of the receiving groove 11 is opened on the outer wall surface 14, and the receiving groove 11 is directly connected to the outer environment of the base 10 through the slot 113. The bottom surface or bottom end of the receiving groove 11 is close to the inner wall surface 16. In the case where the receiving groove 11 is formed on the inner wall surface 16, refer to Figure 5-Figure 7 The slot 113 of the receiving groove 11 is opened on the inner wall surface 16 , the receiving groove 11 is directly connected with the hollow area 12 through the slot 113 , and the bottom surface or the bottom end of the receiving groove 11 is close to the outer wall surface 14 .

[0065] See also Figure 2-Figure 7 In some embodiments, the conductor 20 is a film layer, and the conductor 20 is disposed on the groove surface 111 of the receiving groove 11 .

[0066] In this way, by forming the conductor 20 into a film layer on the groove surface 111 of the receiving groove 11, the thermal deformation of the conductor 20 is reduced, thereby improving the temperature control accuracy of the electromagnetic induction heating process, and helping to reduce the volume of the electromagnetic induction component 100, and also helping to ensure the consistency of the batch production of the electromagnetic induction component 100.

[0067] Specifically, the conductor 20 may be a coating layer or a deposited layer formed by coating, plating or depositing on the groove surface 111 of the receiving groove 11. For example, the conductor 20 may be deposited on the groove surface 111 of the receiving groove 11 by electroplating, chemical plating, laser direct structuring (LDS) process, physical vapor deposition (PVD) process, chemical vapor deposition (CVD) technology, etc. The material of the conductor 20 may be a metal with good conductivity such as copper, nickel, silver, gold or zinc.

[0068] Among them, some atoms, molecules, ions, etc. deposited as the conductor 20 are fused with some atoms, molecules, ions, etc. of the substrate 10 in the receiving groove 11, so that the conductor 20 is partially fused or completely adhered to the groove surface 111 of the receiving groove 11, thereby making the conductor 20 seamlessly connected to the substrate 10 to form an inseparable whole.

[0069] In some embodiments, reference Figure 2-Figure 4 The receiving groove 11 is formed on the outer wall surface 14 , the conductor 20 is formed on the groove surface 111 of the receiving groove 11 , and the film layer of the conductor 20 is isolated from the hollow area 12 by a part of the substrate 10 on one side of the inner wall surface 16 .

[0070] In other embodiments, reference Figure 5-Figure 7 The receiving groove 11 is formed on the inner wall surface 16 , and the conductor 20 is formed on the groove surface 111 of the receiving groove 11 and faces the hollow area 12 .

[0071] It should be noted that Figure 2-Figure 7 The cross section of the conductor 20 spirally wrapping around the hollow area 12 of the base 10 for three turns is merely exemplified. The pitch of the conductor 20 can be further reduced and more turns can be formed to increase the electromagnetic induction intensity.

[0072] See also Figure 2-Figure 7 In some embodiments, the receiving groove 11 is formed with a notch 113 , and the width of the notch 113 along the axial direction of the base 10 is greater than the width of the groove bottom 115 of the receiving groove 11 .

[0073] Thus, by setting the width of the axial notch 113 along the substrate 10 to be greater than the width of the groove bottom 115 , it is advantageous to form a conductor 20 film layer extending along the extension path of the receiving groove 11 and completely fitting the groove surface 111 of the receiving groove 11 .

[0074] Specifically, the Laser Direct Structuring (LDS) process is capable of controlling the movement of the laser according to the trajectory of a specific pattern, projecting the laser onto a three-dimensional plastic device, and forming a specific circuit pattern by chemical plating. The conductor 20 is made by the LDS process, and the laser is projected into the receiving groove 11, and a film layer of the conductor 20 is formed by chemical plating, which extends along the extension path of the receiving groove 11 and completely fits the groove surface 111 of the receiving groove 11. The receiving groove 11 is an open groove, and the groove 113 is directly connected to the outer environment of the hollow area 12 or the substrate 10, so that the laser can be projected onto the groove surface 111 of the receiving groove 11 without hindrance. Furthermore, the width of the groove 113 is greater than the width of the groove bottom 115, which is conducive to forming the conductor 20 film layer by the LDS process.

[0075] In some embodiments, in order to make the width of the notch 113 along the axial direction of the substrate 10 greater than the width of the groove bottom 115 along the axial direction of the substrate 10, that is, to make the width of the notch 113 along the first direction greater than the width of the groove bottom 115 along the first direction, the side of the receiving groove 11 along the second direction is set as a bevel, and the groove width of the receiving groove 11 has a tendency to expand from the groove bottom 115 to the notch 113 along the second direction. In this embodiment, the width of the notch 113 along the first direction is the maximum width of the receiving groove 11 along the axial direction of the conductor 20. Since the conductor 20 completely fits the groove, the first dimension a of the conductor 20 is equal to the width of the notch 113 along the first direction. Therefore, in this embodiment, the first dimension a is greater than the width b of the groove bottom 115 of the receiving groove 11 along the first direction, that is, a>b.

[0076] In this embodiment, the cross-sectional shape of the conductor 20 is consistent with the contour shape formed by the groove surface 111 in the cross-sectional shape of the receiving groove 11 .

[0077] like Figure 2 and Figure 5 As shown, the cross-sectional shape of the conductor 20 and the receiving groove 11 is a trapezoid, the notch 113 forms the bottom side of the trapezoid, the groove bottom 115 forms the top side of the trapezoid, the height of the trapezoid is equal to the depth of the receiving groove 11, and the width of the notch 113 is greater than the width b of the groove bottom 115, the first dimension a of the conductor 20 is equal to the width of the notch 113, that is, the length of the bottom side of the trapezoid, the second dimension h of the cross-sectional shape of the conductor 20 is equal to the depth of the receiving groove 11, the first dimension a is equal to the second dimension h, and the length of the bottom side of the trapezoid is equal to the height of the trapezoid. The cross-sectional shape of the conductor 20 and the receiving groove 11 can be an isosceles trapezoid, a right-angled trapezoid, or a trapezoid of any other angle whose bottom side length is equal to the height.

[0078] Furthermore, the groove bottom 115 may also be formed with rounded corners, and the cross-sectional shape of the conductor 20 and the receiving groove 11 is approximately trapezoidal and has a curved edge on one side of the groove bottom 115 .

[0079] like Figure 3 and Figure 6 As shown, the cross-section of the conductor 20 and the receiving groove 11 is an arc-shaped arch, the groove surface 111 of the receiving groove 11 is an arc-shaped curved surface, and the width of the receiving groove 11 has a tendency to gradually expand from the groove bottom 115 to the groove opening 113 along the second direction. The width of the groove opening 113 is the first dimension a, the depth of the receiving groove 11 is the second dimension h, and the width of the groove opening 113 is equal to the depth of the receiving groove 11.

[0080] like Figure 4 and Figure 7 As shown, the cross-sectional shape of the conductor 20 and the receiving groove 11 is a triangle, the bottom of the receiving groove 11 is a vertex of the triangle, and the notch 113 forms a base of the triangle opposite to the vertex. The first dimension a of the cross-sectional shape of the conductor 20 is equal to the length of the base of the triangle corresponding to the notch 113. The depth of the receiving groove 11 is equal to the height of the triangle made through the vertex of the triangle corresponding to the groove bottom 115, which is also equal to the second dimension h of the cross-sectional shape of the conductor 20. The cross-sectional shape of the conductor 20 and the receiving groove 11 can be any triangle with a side length equal to the length of the perpendicular line of the triangle corresponding to the side.

[0081] See also Figure 8-Figure 13 In some embodiments, the substrate 10 is a hollow columnar structure, the substrate 10 includes an outer wall surface 14 and an inner wall surface 16 which are opposite to each other along the radial direction of the substrate 10, the receiving groove 11 is formed between the outer wall surface 14 and the inner wall surface 16, and the conductor 20 is embedded in the receiving groove 11. It should be noted that Figure 8-Figure 13 The cross section of the conductor 20 spirally wrapping around the hollow area 12 of the base 10 for three turns is merely exemplified. The pitch of the conductor 20 can be further reduced and more turns can be formed to increase the electromagnetic induction intensity.

[0082] In this way, the receiving groove 11 is formed between the outer wall surface 14 and the inner wall surface 16, and the conductor 20 is embedded in the receiving groove 11, thereby protecting the conductor 20, reducing the contact between the conductor 20 and other components not subjected to induction heating, and improving the heat conduction efficiency.

[0083] Specifically, the inner wall surface 16 of the receiving groove 11 surrounds the hollow area 12, and the receiving groove 11 spirally extends around the central axis of the substrate 10 between the outer wall surface 14 and the inner wall surface 16, spirally surrounding the hollow area 12. The conductor 20 is embedded in the receiving groove 11, and the outer surface of the conductor 20 can be completely in contact with the groove surface 111 of the receiving groove 11. The cross-sections of the conductor 20 and the receiving groove 11 are both closed shapes, and the receiving groove 11 can be disconnected from the external environment of the substrate 10 and the hollow area 12 in the first direction.

[0084] See also Figure 8-Figure 12 In some embodiments, the conductor 20 completely fills the receiving groove 11 .

[0085] In this way, by filling the receiving groove 11 with the conductor 20, it is beneficial to ensure the consistency of batch processing of the conductor 20, and can reduce the thermal deformation of the electromagnetic induction component 100 and improve the temperature control accuracy.

[0086] Specifically, the conductor 20 is a three-dimensional structure, and the outer surface of the conductor 20 is completely in contact with the groove surface 111 of the receiving groove 11, and the conductor 20 is joined to the substrate 10 as a whole. The outer contour of the cross section of the conductor 20 is consistent with the cross-sectional shape of the receiving groove 11 and has the same size. The cross-sectional outer contour of the conductor 20 can be a circle, square, triangle, trapezoid, polygon or other irregular shape that satisfies the first dimension a equal to the second dimension h.

[0087] like Figure 8 and Fig. 9 In the illustrated embodiment, the cross-sectional shapes of the conductor 20 and the receiving groove 11 are both trapezoidal, and the mutually parallel top and bottom sides of the trapezoid are parallel to the first direction, so the length of the bottom side with the larger side length is equal to the first dimension a, and the second dimension h of the cross-sectional shape of the conductor 20 is equal to the depth of the receiving groove 11. And because the first dimension a is equal to the second dimension h, the length of the bottom side of the trapezoid is equal to the height of the trapezoid. It should be noted that, under the condition that the first dimension a and the second dimension h are equal, the cross-sectional shape of the conductor 20 and the receiving groove 11 can be an isosceles trapezoid, a right-angled trapezoid, or a trapezoid of any other angle, with the bottom side length equal to the height, and the top side and the bottom side of the trapezoid can be arranged to form any angle with the first direction.

[0088] like Fig.10 In the illustrated embodiment, the cross-sectional shapes of the conductor 20 and the receiving groove 11 are both square, and the side length of the square is equal to the first dimension a and the second dimension h.

[0089] like Fig.11 In the embodiment shown, the cross-sectional shapes of the conductor 20 and the receiving groove 11 are both triangular, and one side of the triangle is arranged parallel to the first direction, then the length of the side parallel to the first direction is the first dimension a, and the length of the height of the triangle on the side is the second dimension h, and the first dimension a is equal to the second dimension h, then the side of the cross-sectional shape of the conductor 20 and the receiving groove 11 is equal to the height on the side. It should be noted that, under the condition that the first dimension a and the second dimension h are equal, in the cross-sectional shape of the conductor 20 and the receiving groove 11, the three sides of the triangle can also form any angle with the first direction.

[0090] The electromagnetic induction component 100 can be integrally cast, wherein the conductor 20 can be made of a spiral tube made of a metal with good conductivity such as copper, nickel, silver, gold or zinc and used as a core in the casting process of the substrate 10, and the substrate 10 can be cast on the core using a heat-resistant non-metallic material and formed into a hollow columnar structure.

[0091] See also Fig.12 and Fig.13 In some embodiments, the conductor 20 is a solid structure or a hollow structure.

[0092] Thus, the conductor 20 is a solid structure, so that the conductor 20 is not easily deformed by heat, which is beneficial to improving the temperature control effect. The conductor 20 is a hollow structure, so that the weight of the conductor 20 is further reduced, which is beneficial to the lightweight of the product.

[0093] In some embodiments, Fig.11 As shown, the conductor 20 is a solid structure, and the cross-sectional shapes of the conductor 20 and the receiving groove 11 are the same circular shape, and the conductor 20 fills the receiving groove 11. The diameter of the cross section of the conductor 20 is both the first dimension a and the second dimension h, and the first dimension a and the second dimension h are also equal to the diameter of the cross section of the receiving groove 11.

[0094] In other embodiments, Fig.12 As shown, the cross section of the conductor 20 is a hollow structure, the cross section of the conductor 20 is in a circular ring shape, the cross section of the receiving groove 11 is in a circular shape, and the outer circumference of the conductor 20 is integrated with the groove surface 111 of the receiving groove 11. The outer diameter of the cross section of the conductor 20 is both the first dimension a and the second dimension h, and the first dimension a, the second dimension h and the diameter of the cross section of the receiving groove 11 are also equal.

[0095] See also Fig.14 The heating module 200 of the embodiment of the present application is used to heat the atomized medium to generate aerosol. The heating module 200 includes the electromagnetic induction component 100 of any of the above embodiments and a heating element 210, wherein the heating element 210 is arranged on the inner side of the conductor 20, and the heating element 210 is used to generate heat under electromagnetic excitation when the conductor 20 is connected to an alternating current to generate an induced magnetic field.

[0096] The heating module 200 of the embodiment of the present application includes the electromagnetic induction component 100 of the above embodiment, and thus has all the beneficial effects of the electromagnetic induction component 100 of the embodiment of the present application.

[0097] The heating element 210 can be generally pin-shaped, needle-shaped, sheet-shaped, tubular, rod-shaped or other shaped structures. The heating element 210 can be fixed in the hollow area 12 of the substrate 10 by a fixing member fixed at one end of the hollow area 12, so that the heating element 210 is placed coaxially with the substrate 10. The material of the heating element 210 is a high magnetic permeability material, so that the heating element 210 can be magnetized under the action of magnetic lines of force, that is, it can be adsorbed by a magnet. For example, the material of the heating element 210 can be iron, carbon steel, stainless steel or other iron alloys.

[0098] The heating element 210 is arranged on the inner side of the spiral conductor 20. When an alternating current of a certain frequency is passed through the conductor 20, the conductor 20 will generate an alternating magnetic field (not shown) that wraps around the heating element 210. When the magnetic field generated by the conductor 20 is constantly changing, the heating element 210 will continuously cut the magnetic lines of force, and then an alternating current, i.e., eddy current, will be continuously generated inside the heating element 210. The eddy current generated inside the heating element 210 will cause the atoms inside the heating element 210 to move irregularly at high speed, and they will continuously collide and rub against each other, thereby generating heat energy. The heat energy generated by the heating element 210 is used to heat the atomized medium.

[0099] See also Fig.15 The aerosol generating device 1000 of the embodiment of the present application is used to generate aerosol, and includes the electromagnetic induction component 100 or the heating module 200 of the above embodiment.

[0100] The aerosol generating device 1000 of the embodiment of the present application includes the electromagnetic induction component 100 or the heating module 200 of the above embodiment, and thus has all the beneficial effects of the electromagnetic induction component 100 or the heating module 200 of the above embodiment.

[0101] The aerosol generating device 1000 is a structure capable of generating aerosol by electromagnetic heating on an atomizing medium. The atomizing medium is a substance that is processed and heated to generate an aerosol. The atomizing medium may be in a fully solid or semi-solid state, or in a liquid state. For example, the solid atomizing medium may be a plant flower, stem or leaf product prepared by rolling, slurrying, die casting, extrusion or the like. For another example, the liquid atomizing medium may include a liquid composition based on plant extracts and / or various flavoring agents.

[0102] The atomizing medium is heated and atomized to form an aerosol, which may be visible or invisible and may include vapor (e.g., fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature) and liquid droplets of gas and condensed vapor. The aerosol may contain volatile compounds. The user may inhale the aerosol into the oral cavity, nasal cavity or lungs through the mouth or nose, and the aerosol inhaled into the user's respiratory system may be used for a variety of purposes such as food, medicine, health care, and entertainment.

[0103] The aerosol generating device 1000 further comprises a housing 300 for accommodating and protecting the electromagnetic induction component 100 or the heating module 200. The housing 300 is usually provided with a heat-insulating nozzle 400 for the user to inhale the aerosol.

[0104] By accommodating the conductor 20 in the electromagnetic induction component 100 in the accommodating groove 11 of the substrate, the substrate 10 and the conductor 20 are combined into one body, effectively reducing the contact area between the conductor 20 and the insulating and heat-insulating structure, reducing heat loss, thereby reducing the temperature of the housing 300 of the aerosol generating device 1000, improving the atomization efficiency of the aerosol generating device 1000, and reducing the adverse temperature control effect caused by thermal deformation during the heating process. In addition, it is also beneficial to reduce the volume of the product.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do 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.

[0106] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electromagnetic induction component, characterized in that: The electromagnetic induction component comprises: A base body, wherein the base body is formed with a receiving groove, and the receiving groove extends in a spiral shape along the axial direction of the base body; An electrical conductor, the electrical conductor being disposed in the receiving groove and extending along an extension path of the receiving groove; The cross section of the conductor has a first size and a second size, the first size is the maximum size along the axial direction of the conductor, the second size is the maximum size along the radial direction of the conductor, and the first size is equal to the second size.

2. The electromagnetic induction component according to claim 1, characterized in that: The conductor is completely in contact with the groove surface of the accommodating groove.

3. The electromagnetic induction component according to claim 1, characterized in that: The base is a hollow columnar structure, and includes an outer wall surface and an inner wall surface that are opposite to each other along the radial direction of the base. The receiving groove is formed on the outer wall surface or the inner wall surface.

4. The electromagnetic induction component according to claim 3, characterized in that: The conductor is a film layer, and the conductor is arranged on the groove surface of the containing groove.

5. The electromagnetic induction component according to claim 3, characterized in that: The receiving groove is formed with a notch, and the width of the notch along the axial direction of the base body is greater than the width of the groove bottom of the receiving groove.

6. The electromagnetic induction component according to claim 3, characterized in that: The base is a hollow columnar structure, and includes an outer wall surface and an inner wall surface that are opposite to each other along the radial direction of the base. The receiving groove is formed between the outer wall surface and the inner wall surface, and the conductor is embedded in the receiving groove.

7. The electromagnetic induction component according to claim 6, characterized in that: The conductor fully fills the receiving groove.

8. The electromagnetic induction component according to claim 6, characterized in that: The conductor is a solid structure or a hollow structure.

9. A heating module for heating an atomizing medium to generate an aerosol, characterized in that: The heating module comprises: The electromagnetic induction component according to any one of claims 1 to 8; and The heating element is arranged on the inner side of the conductor and is used for generating heat by electromagnetic excitation when the conductor is connected to an alternating current to generate an induced magnetic field.

10. An aerosol generating device for generating aerosol, characterized in that: The aerosol generating device comprises the electromagnetic induction component according to any one of claims 1 to 8 or the heating module according to claim 9.

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