Inductive assembly, controller, electric machine and vehicle

Abstract

The application relates to an inductor assembly, a controller, a motor and a vehicle. The inductor assembly comprises an inductor body, the inductor body comprises a coil and a magnetic core, the magnetic core is arranged on one side of the coil, and heat dissipation pieces are connected to the inductor body, and different heat dissipation pieces are located on different sides of the inductor body. According to the inductor assembly provided in the application, the inductor body can realize double-sided or multi-sided heat dissipation, and the heat dissipation efficiency of the inductor assembly is effectively improved.

Description

Technical Field

[0001] This application relates to the field of inductor technology, and more particularly to an inductor component, controller, motor, and vehicle. Background Technology

[0002] Inductors are a key passive component in electronic circuits, mainly used for storing energy (in the form of a magnetic field), filtering, tuning, impedance matching, and suppressing electromagnetic interference (EMI).

[0003] Inductors, typically consisting of coils and magnetic cores, are crucial components in electronic devices such as motor controllers. However, the heat dissipation efficiency of inductors in current technologies still needs improvement. Utility Model Content

[0004] This application provides an inductor component that improves the heat dissipation efficiency of the inductor component, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, an inductor assembly is provided, comprising:

[0006] An inductor body includes a coil and a magnetic core, wherein the magnetic core is disposed on one side of the coil;

[0007] At least two heat sinks are connected to the inductor body, and different heat sinks are located on different sides of the inductor body.

[0008] Optionally, the inductor body includes a first side and a second side disposed opposite to each other, and at least two heat sinks include a first heat sink and a second heat sink, with the first heat sink disposed on the first side and the second heat sink disposed on the second side.

[0009] Optionally, both the coil and the magnetic core are connected to the heat sink.

[0010] Optionally, there are multiple coils and multiple magnetic cores, with each coil corresponding to one magnetic core, and the magnetic cores stacked on top of the coils.

[0011] Optionally, the plurality of coils include a first coil and a second coil, and the plurality of magnetic cores include a first magnetic core and a second magnetic core, wherein the first magnetic core is stacked on the first coil, and the second magnetic core is stacked on the second coil, wherein...

[0012] Both the first coil and the second coil are connected to the heat sink; and / or,

[0013] Both the first magnetic core and the second magnetic core are connected to the heat sink.

[0014] Optionally, at least two of the heat sinks include a first heat sink and a second heat sink, wherein,

[0015] Both the first coil and the second coil are connected to the first heat sink; and / or,

[0016] Both the first magnetic core and the second magnetic core are connected to the second heat sink.

[0017] Optionally, the inductor assembly further includes a housing having a receiving cavity, and the inductor body is disposed within the receiving cavity.

[0018] Optionally, the coil, the magnetic core, and the housing are integrally formed.

[0019] According to a second aspect of this application, a controller is provided, including the inductor component as described above.

[0020] Optionally, the controller further includes a housing, the inductor assembly is disposed within the internal space of the housing, and the heat sink abuts against the housing.

[0021] Optionally, at least two of the heat sinks include a first heat sink and a second heat sink, wherein the first heat sink connects the coil and the housing, and the second heat sink connects the magnetic core and the housing.

[0022] According to a third aspect of this application, an electric motor is provided, including the controller described above.

[0023] According to a fourth aspect of this application, a vehicle is provided, including the controller or motor described above.

[0024] In the inductor assembly of this application embodiment, the heat sink can transfer the heat of the inductor body to the outside. By providing multiple heat sinks and placing different heat sinks on different sides of the inductor body, different heat sinks can accelerate the heat dissipation on different sides of the inductor body, enabling the inductor body to achieve double-sided or multi-sided heat dissipation, effectively improving the heat dissipation efficiency of the inductor assembly.

[0025] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0028] Figure 1 This is a schematic diagram of the structure of the inductor assembly provided in an exemplary embodiment of this disclosure;

[0029] Figure 2 This is a schematic diagram of the inductor assembly provided in an exemplary embodiment of this disclosure from another angle;

[0030] Figure 3 This is a partial structural schematic diagram of the inductor component provided in an exemplary embodiment of this disclosure;

[0031] Figure 4 This is a partial structural diagram of the controller provided in an exemplary embodiment of this disclosure;

[0032] Figure 5 This is a schematic diagram of the structure of an inductor component in related technologies.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Inductor body; 2. Heat sink; 3. Housing; 4. Box; 5. Center column; 11. Coil; 12. Magnetic core; 21. First heat sink; 22. Second heat sink; 111. First coil; 112. Second coil; 121. First magnetic core; 122. Second magnetic core. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0036] According to the first aspect of this application, see Figures 1 to 4 This application provides an inductor component.

[0037] See Figure 1 , Figure 2 and Figure 3 The inductor assembly includes an inductor body 1 and at least two heat sinks 2. The inductor body 1 includes a coil 11 and a magnetic core 12. The magnetic core 12 is located on one side of the coil 11. The heat sinks 2 are connected to the inductor body 1, and different heat sinks 2 are located on different sides of the inductor body 1.

[0038] It is understandable that the heat sink 2 can transfer the heat of the inductor body 1 to the outside. By setting multiple heat sinks 2 and placing different heat sinks 2 on different sides of the inductor body 1, different heat sinks 2 can accelerate the heat dissipation on different sides of the inductor body 1, so that the inductor body 1 can achieve double-sided or multi-sided heat dissipation, effectively improving the heat dissipation efficiency of the inductor component.

[0039] Understandably, in related technologies, inductor components are generally placed in products with limited space, resulting in insufficient heat dissipation efficiency. This embodiment addresses this by providing heat sinks 2 on different sides of the inductor body 1, allowing the inductor body 1 to dissipate heat through different heat sinks 2, achieving multi-faceted heat dissipation. This effectively improves the heat dissipation efficiency of the inductor component, solves the problem of insufficient heat dissipation performance of inductor components in compact products, and allows the inductor component to operate at a more optimal temperature.

[0040] In some examples, the number of heat sinks 2 can be adjusted according to the actual situation. For example, the number of heat sinks 2 can be two, with the two heat sinks 2 respectively disposed on both sides of the inductor body 1; the number of heat sinks 2 can also be four, with the four heat sinks 2 respectively disposed on the four surfaces of the inductor body 1.

[0041] In some examples, the number of heat sinks 2 on the same side of the inductor body 1 can be one, two or more, as long as heat sinks 2 are provided on at least two surfaces of the inductor body 1 so that the inductor body 1 can achieve multi-faceted heat dissipation.

[0042] In some examples, the heat sink 2 is, for example, a heat sink pad or heat dissipation coating or any other suitable structural component with heat dissipation effect.

[0043] In some cases, the inductor assembly is rectangular in shape.

[0044] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The inductor body 1 includes a first side and a second side disposed opposite to each other, and at least two heat sinks 2 including a first heat sink 21 and a second heat sink 22, wherein the first heat sink 21 is disposed on the first side and the second heat sink 22 is disposed on the second side.

[0045] It is understandable that the first side of the inductor body 1 can be cooled by the first heat sink 21, and the other side of the inductor body 1 can be cooled by the second heat sink 22. This allows the two opposite sides of the inductor body 1 to be cooled at the same time, which helps to ensure the uniformity of the heat dissipation effect of the inductor body 1 and reduce the temperature difference at different locations of the inductor body 1.

[0046] In some examples, the first heat sink 21 and the second heat sink 22 are both connected to the magnetic core 12, that is, the first heat sink 21 and the second heat sink 22 are connected to different sides of the magnetic core 12, so that the magnetic core 12 can achieve multi-faceted heat dissipation, thereby improving the heat dissipation efficiency of the inductor component.

[0047] In some examples, the first heat sink 21 and the second heat sink 22 are both connected to the coil 11, that is, the first heat sink 21 and the second heat sink 22 are connected to different sides of the magnetic core 12, so that the coil 11 can achieve multi-faceted heat dissipation, thereby improving the heat dissipation efficiency of the inductor assembly.

[0048] In some examples, one of the first heat sink 21 and the second heat sink 22 is connected to the coil 11, and the other of the first heat sink 21 and the second heat sink 22 is connected to the magnetic core 12. The first heat sink 21 and the second heat sink 22 are located on different sides of the inductor body 1, so that both the coil 11 and the magnetic core 12 can be cooled by the heat sink 2, thereby improving the heat dissipation efficiency of the coil 11 and the magnetic core 12, and thus improving the heat dissipation efficiency of the inductor assembly.

[0049] In some embodiments, see Figure 1 , Figure 2 and Figure 3 Both coil 11 and magnetic core 12 are connected to heat sink 2.

[0050] It is understandable that connecting both coil 11 and magnetic core 12 to heat sink 2 simultaneously allows both coil 11 and magnetic core 12 to dissipate heat through heat sink 2, thereby improving the heat dissipation efficiency of coil 11 and magnetic core 12 and thus improving the heat dissipation efficiency of the inductor assembly.

[0051] It is understandable that, since the coil 11 and the magnetic core 12 are in contact, the heat of the coil 11 can be transferred to the magnetic core 12, and the heat of the magnetic core 12 can be transferred to the coil 11. That is, when the magnetic core 12 is connected to the heat sink 2, the heat of the coil 11 can be transferred to the heat sink 2 through the magnetic core 12 to achieve heat dissipation. When the coil 11 is connected to the heat sink 2, the heat of the magnetic core 12 can be transferred to the heat sink 2 through the coil 11 to achieve heat dissipation.

[0052] In some examples, coil 11 and magnetic core 12 can be connected to the same heat sink 2 to achieve the sharing of heat sink 2.

[0053] In some examples, the coil 11 and the magnetic core 12 can be connected to different heat sinks 2, thereby ensuring the heat dissipation efficiency of the coil 11 and the magnetic core 12.

[0054] In some embodiments, see Figure 3There are multiple coils 11 and multiple magnetic cores 12. The multiple coils 11 correspond one-to-one with the multiple magnetic cores 12, and the magnetic cores 12 are stacked on top of the coils 11.

[0055] It is understandable that each coil 11 is stacked with a corresponding magnetic core 12, that is, the magnetic core 12 corresponding to different coils 11 is different, so that the magnetic circuits formed by different coils 11 are independent, which can reduce the mutual interference between the magnetic circuits formed by different coils 11.

[0056] Understandably, see Figure 5 In related technologies, the inductor assembly uses two or more coils sharing a single magnetic core 12, meaning the magnetic circuit of the inductor assembly in these technologies is a shared magnetic circuit. In these technologies, the central post 5 contains a magnetic core, and all magnetic field lines pass through the magnetic core in the central post 5. The two inductor coils are separated by the central post 5, increasing the space required for the inductor assembly.

[0057] In this embodiment, the magnetic circuit of the inductor assembly is a three-dimensional magnetic circuit. The two coils 11 are tightly attached together in the structural layout, without a central pillar structure. The magnetic core 12 in the central pillar is moved above the coils 11, making the inductor assembly layout more compact. According to the inductor assembly calculation formula (L is the inductance, N is the number of turns of the inductor coil 11, A is the cross-sectional area of ​​the magnetic core 12, and r is the average radius of the magnetic ring): It is known that when the inductance L is required to be constant, the average radius r of the magnetic ring, the number of turns N of the inductor coil 11, and the cross-sectional area A of the magnetic core 12 all affect the inductance L. This is reflected in the product as follows: In related technologies, the magnetic core 12 of the inductor assembly is arranged between two sets of coils 11. The limited space results in a smaller cross-sectional area A for the magnetic core 12. To maintain the required inductance, the cross-sectional area of ​​the magnetic core 12 at the center of the coil 11 needs to be increased, leading to a larger average radius r of the coil 11, which in turn requires a larger number of turns N. In this embodiment, the magnetic core 12 of the inductor assembly is arranged above the coils 11, making full use of the space above the coils 11. A larger cross-sectional area magnetic core 12 can be arranged, allowing for a smaller cross-sectional area at the center of the coil 11, and consequently, a smaller average radius r of the coil 11. Since the required inductance L remains constant, the number of turns N of the coil 11 can also be reduced, ultimately reducing the length of the coil 11 used, saving costs and reducing weight.

[0058] In some embodiments, see Figure 3 The plurality of coils 11 include a first coil 111 and a second coil 112, and the plurality of magnetic cores 12 include a first magnetic core 121 and a second magnetic core 122. The first magnetic core 121 is stacked on the first coil 111, and the second magnetic core 122 is stacked on the second coil 112.

[0059] It is understandable that by stacking the first magnetic core 121 on the first coil 111 and the second magnetic core 122 on the second coil 112, the different magnetic circuits formed by the inductor components are independent of each other.

[0060] Understandably, placing the magnetic core 12 on one side of the coil 11 using a stacked arrangement can make the structure of the inductor assembly more compact.

[0061] Specifically, both the first coil 111 and the second coil 112 are connected to a heat sink 2.

[0062] Understandably, both the first coil 111 and the second coil 112 can dissipate heat through the heat sink 2, so that the heat generated by the first coil 111 and the second coil 112 can be dissipated quickly, keeping the inductor assembly at its optimal operating temperature.

[0063] Specifically, both the first magnetic core 121 and the second magnetic core 122 are connected to heat sinks 2.

[0064] It is understandable that both the first magnetic core 121 and the second magnetic core 122 can dissipate heat through the heat sink 2, so that the heat generated by the first magnetic core 121 and the second magnetic core 122 can be dissipated quickly, keeping the inductor assembly at its optimal operating temperature.

[0065] In some embodiments, see Figure 3 At least two heat sinks 2 include a first heat sink 21 and a second heat sink 22.

[0066] Specifically, both the first coil 111 and the second coil 112 are connected to the first heat sink 21.

[0067] It is understandable that the first coil 111 and the second coil 112 can be cooled by the first heat sink 21 at the same time, so that the first heat sink 21 can be shared.

[0068] Specifically, both the first magnetic core 121 and the second magnetic core 122 are connected to the second heat sink 22.

[0069] It is understandable that the first magnetic core 121 and the second magnetic core 122 can be cooled by the second heat sink 22 at the same time, so that the second heat sink 22 can be shared.

[0070] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The inductor assembly also includes a housing 3, which forms a receiving cavity, and the inductor body 1 is disposed in the receiving cavity.

[0071] It is understandable that placing the inductor body 1 inside the housing 3 is beneficial to improving the structural integration of the inductor assembly.

[0072] In some examples, the heat sink 2 can be disposed within the receiving cavity.

[0073] In some examples, at least part of the heat sink 2 is not inside the receiving cavity.

[0074] In some embodiments, the coil 11, the magnetic core 12, and the housing 3 are integrally formed.

[0075] It is understandable that integrating the coil 11, magnetic core 12, and outer casing 3 into a single unit can reduce the production time required, thereby improving production efficiency and reducing production costs.

[0076] In some examples, the coil 11, the magnetic core 12, and the outer casing 3 are integrally injection molded.

[0077] According to the second aspect of this application, see Figure 4 This application provides a controller that includes the aforementioned inductor component.

[0078] It is understandable that the heat sink 2 can transfer the heat of the inductor body 1 to the outside. By setting multiple heat sinks 2 and placing different heat sinks 2 on different sides of the inductor body 1, different heat sinks 2 can accelerate the heat dissipation on different sides of the inductor body 1, so that the inductor body 1 can achieve double-sided or multi-sided heat dissipation, effectively improving the heat dissipation efficiency of the inductor component, thereby ensuring that the controller can work stably.

[0079] Understandably, in related technologies, the inductor components suffer from insufficient heat dissipation, requiring the gap between the inductor component and the housing 4 to be filled with thermally conductive putty after installation into the controller, significantly increasing production costs. However, the inductor component of this application achieves multi-faceted heat dissipation, improving its own heat dissipation performance. This reduces the amount of thermally conductive putty required after installation, thereby substantially reducing production costs.

[0080] In some examples, the controller is, for instance, a motor controller. It should be noted that this is merely an illustrative example and not a specific limitation. For example, the controller could also be an air conditioner controller.

[0081] In some cases, after the inductor is installed in the controller, the current input terminal, current output terminal one, and current output terminal two of the inductor are welded to the welding terminals of the DC bus copper busbar assembly by laser welding, so that the inductor is connected to the controller.

[0082] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The controller also includes a housing 4, with the inductor assembly located inside the housing 4, and the heat sink 2 abutting against the housing 4.

[0083] It is understandable that since the heat sink 2 is connected to both the inductor body 1 and the housing 4, the heat sink 2 can transfer the heat of the inductor body 1 to the housing 4, thereby achieving heat dissipation of the inductor body 1.

[0084] Understandably, the controller's housing 4 will have a heat dissipation structure design to ensure heat dissipation. By bringing the heat sink 2 into contact with the housing 4, the heat generated by the inductor body 1 can be transferred to the housing 4, thus utilizing the controller's heat dissipation performance.

[0085] In some embodiments, see Figure 3 and Figure 4 At least two heat sinks 2 include a first heat sink 21 and a second heat sink 22. The first heat sink 21 connects the coil 11 and the housing 4, and the second heat sink 22 connects the magnetic core 12 and the housing 4.

[0086] It is understandable that the heat generated by the coil 11 can be transferred to the housing 4 through the first heat sink 21, and the heat generated by the magnetic core 12 can be transferred to the housing 4 through the second heat sink 22, thereby achieving heat dissipation for the coil 11 and the magnetic core 12.

[0087] Understandably, the different placement of the first heat sink 21 and the second heat sink 22 allows the inductor assembly to achieve direct contact heat dissipation on both sides, thus improving the heat dissipation efficiency of the inductor assembly. This direct contact heat dissipation fully utilizes the controller's heat dissipation capabilities, quickly transferring the heat from the inductor core 12 and coil 11 to the outside air.

[0088] According to a third aspect of this application, this application provides an electric motor including the controller described above.

[0089] According to the embodiment of this application, the heat sink 2 of the controller can transfer the heat of the inductor body 1 to the outside. By providing multiple heat sinks 2 and placing different heat sinks 2 on different sides of the inductor body 1, different heat sinks 2 can accelerate the heat dissipation on different sides of the inductor body 1, so that the inductor body 1 can achieve double-sided or multi-sided heat dissipation, effectively improving the heat dissipation efficiency of the inductor component, ensuring that the controller can work stably, and thus ensuring that the motor can work stably.

[0090] According to a fourth aspect of this application, this application provides a vehicle including the controller or motor described above.

[0091] It is understandable that the heat sink 2 of the controller can transfer the heat of the inductor body 1 to the outside. By setting multiple heat sinks 2 and placing different heat sinks 2 on different sides of the inductor body 1, different heat sinks 2 can accelerate the heat dissipation on different sides of the inductor body 1, so that the inductor body 1 can achieve double-sided or multi-sided heat dissipation, effectively improving the heat dissipation efficiency of the inductor components, ensuring that the controller can work stably, and thus ensuring that the vehicle can work stably.

[0092] In some examples, the vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not specifically limit this.

[0093] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0094] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0095] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0096] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An inductor component, characterized in that, include: An inductor body includes a coil and a magnetic core, wherein the magnetic core is disposed on one side of the coil; At least two heat sinks are connected to the inductor body, and different heat sinks are located on different sides of the inductor body.

2. The inductor assembly according to claim 1, characterized in that, The inductor body includes a first side and a second side disposed opposite to each other, and at least two heat sinks include a first heat sink and a second heat sink, with the first heat sink disposed on the first side and the second heat sink disposed on the second side.

3. The inductor assembly according to claim 1, characterized in that, Both the coil and the magnetic core are connected to the heat sink.

4. The inductor assembly according to claim 1, characterized in that, The number of coils is multiple, the number of magnetic cores is multiple, and the multiple coils correspond one-to-one with the multiple magnetic cores, with the magnetic cores stacked on top of the coils.

5. The inductor assembly according to claim 4, characterized in that, The plurality of coils include a first coil and a second coil, and the plurality of magnetic cores include a first magnetic core and a second magnetic core, wherein the first magnetic core is stacked on the first coil, and the second magnetic core is stacked on the second coil, wherein... Both the first coil and the second coil are connected to the heat sink; and / or, Both the first magnetic core and the second magnetic core are connected to the heat sink.

6. The inductor assembly according to claim 5, characterized in that, At least two of the heat sinks include a first heat sink and a second heat sink, wherein, Both the first coil and the second coil are connected to the first heat sink; and / or, Both the first magnetic core and the second magnetic core are connected to the second heat sink.

7. The inductor assembly according to any one of claims 1 to 6, characterized in that, The inductor assembly also includes a housing, the housing forming a receiving cavity, and the inductor body disposed within the receiving cavity.

8. The inductor assembly according to claim 7, characterized in that, The coil, the magnetic core, and the outer casing are integrally formed.

9. A controller, characterized in that, Including the inductor component as described in any one of claims 1 to 8.

10. The controller according to claim 9, characterized in that, The controller also includes a housing, the inductor assembly is disposed inside the housing, and the heat sink abuts against the housing.

11. The controller according to claim 10, characterized in that, At least two of the heat sinks include a first heat sink and a second heat sink, wherein the first heat sink connects the coil and the housing, and the second heat sink connects the magnetic core and the housing.

12. An electric motor, characterized in that, Includes the controller as described in any one of claims 9 to 11.

13. A vehicle, characterized in that, Includes the controller as described in any one of claims 9 to 11 or the motor as described in claim 12.

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