Inductance, electric control system and vehicle

Abstract

The application relates to the technical field of electronic devices, and provides an inductor, an electric control system and a vehicle. The inductor comprises a mounting frame, an electromagnetic assembly and a silica gel sheet. The electromagnetic assembly is mounted in the mounting frame, and the silica gel sheet is in contact with the electromagnetic assembly to dissipate heat. The mounting frame is provided with a limiting structure extending along a direction perpendicular to the thickness direction of the silica gel sheet. The limiting structure abuts against the silica gel sheet and limits the movement of the silica gel sheet. The inductor provided by the application can effectively solve the problems that the silica gel sheet is unreliable in connection with the electromagnetic assembly through gluing and the silica gel sheet is prone to falling off in the prior art, and realizes reliable fixation of the silica gel sheet.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and more particularly to an inductor, an electronic control system, and a vehicle. Background Technology

[0002] In the design and application of boost inductors, silicone pads are crucial components for coil heat dissipation, insulation, and structural fixation. Currently, self-adhesive silicone pads are commonly used in the market. These pads are directly fixed to the coil surface of the electromagnetic assembly using adhesive, preventing them from falling off during inductor operation or transportation and ensuring stable heat dissipation. However, in actual use and transportation, external vibrations and impacts can cause the adhesion between the silicone pad and the coil surface to be difficult to maintain over time, leading to frequent detachment of the silicone pad. This results in heat dissipation failure, decreased insulation performance, and other problems, severely impacting the reliability of the boost inductor.

[0003] In existing technologies, additional adhesive is used to ensure the fixation of the silicone sheet. However, this significantly increases the thickness of the adhesive layer. An excessively thick adhesive layer significantly increases the thermal resistance between the silicone sheet and the coil, resulting in a substantial reduction in heat transfer efficiency. This not only weakens the heat dissipation effect of the silicone sheet and affects product performance, but may also cause inductor performance degradation or even failure due to excessive coil temperature, thus limiting the application of boost inductors in high power density scenarios. Furthermore, the self-adhesive silicone sheet relies on manual operation or simple positioning during installation, which can easily lead to misalignment of the silicone sheet, further reducing its heat dissipation effect. Utility Model Content

[0004] This application provides an inductor to solve the problems of unreliable connection between silicone sheets and electromagnetic components and easy detachment of silicone sheets in the prior art, thereby achieving reliable fixation of silicone sheets.

[0005] This application also provides an electronic control system.

[0006] This application also provides a vehicle.

[0007] According to a first aspect of this application, an inductor includes a mounting frame, an electromagnetic component, and a silicone sheet. The electromagnetic component is mounted in the mounting frame, and the silicone sheet contacts the electromagnetic component for heat dissipation. The mounting frame is provided with a limiting structure extending perpendicular to the thickness direction of the silicone sheet. The limiting structure abuts against the silicone sheet and restricts its movement.

[0008] According to one embodiment of this application, a limiting plate is provided on the mounting frame, and the limiting plate abuts against the end position of the silicone sheet in the length direction to restrict the silicone sheet from detaching from the electromagnetic component;

[0009] The limiting structure includes the limiting plate.

[0010] According to one embodiment of this application, the electromagnetic component includes a coil, the coil having a rectangular cross-section with rounded corners.

[0011] The silicone sheet includes a planar area and curved areas located at both ends of the planar area. The planar area covers a first side of the coil, and the curved areas extend to the rounded corners at the ends of the first side.

[0012] The limiting plate is positioned on the mounting frame at a location corresponding to the rounded corner, so that the limiting plate is lower than the height of the planar area.

[0013] According to one embodiment of this application, the limiting plate is a curved plate and matches the rounded corner shape of the coil.

[0014] According to one embodiment of this application, the side of the limiting plate that contacts the silicone sheet is provided with an anti-slip structure.

[0015] According to one embodiment of this application, the length of the limiting plate is 5 to 10 mm.

[0016] According to one embodiment of this application, a limiting block is provided on the mounting frame, the limiting block is connected to the limiting plate, and the limiting block is located on the side of the limiting plate facing the electromagnetic component;

[0017] The limiting block is located on the extension line of the length direction of the silicone sheet and abuts against the end of the silicone sheet to limit the relative sliding between the silicone sheet and the electromagnetic component;

[0018] The limiting structure includes the limiting plate and the limiting block.

[0019] According to one embodiment of this application, the limiting block is located between the two ends of the limiting plate along the width direction of the limiting plate.

[0020] According to one embodiment of this application, the electromagnetic component and the silicone sheet are respectively configured as two sets, and the silicone sheet includes a first silicone sheet and a second silicone sheet;

[0021] The right end of the first silicone sheet is adjacent to the left end of the second silicone sheet, and the limiting plate at the right end of the first silicone sheet is connected to the limiting plate at the left end of the second silicone sheet, and they are an integral component.

[0022] According to one embodiment of this application, the mounting frame includes a first frame and a second frame, wherein the first frame and the second frame are joined together to form the complete mounting frame;

[0023] The limiting structure is provided on one of the first frame and the second frame; or, the limiting structure is provided on both the first frame and the second frame.

[0024] An electronic control system according to a second aspect of this application includes the aforementioned inductor.

[0025] A vehicle according to a third aspect of this application includes the aforementioned electronic control system.

[0026] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects:

[0027] The inductor in this application utilizes a limiting structure on the mounting frame to restrict the installation of the silicone sheet, preventing movement and ensuring proper installation and reliable connection. This prevents the silicone sheet from detaching due to vibration or impact during operation. The limiting structure on the mounting frame eliminates the need for an adhesive layer between the silicone sheet and the electromagnetic component, improving heat dissipation and reducing the overall size of the inductor. Furthermore, the limiting structure on the mounting frame eliminates the need for adhesive application during installation, simplifying the inductor manufacturing process. Additionally, the limiting structure facilitates silicone sheet installation, preventing misalignment or tilting and ensuring optimal heat dissipation.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying 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.

[0030] Figure 1 This is a schematic diagram of the structure of an inductor in the prior art.

[0031] Figure 2 This is a schematic diagram of the structure of the inductor provided in this application. Figure 1 .

[0032] Figure 3 This is a schematic diagram of the structure of the inductor provided in this application. Figure 2 .

[0033] Figure 4 This is a schematic diagram of the first skeleton provided in this application. Figure 1 .

[0034] Figure 5 for Figure 4 Enlarged view of the structure of section A in the middle.

[0035] Figure 6 for Figure 4 Enlarged view of the structure of section B in the middle.

[0036] Figure 7 This is a schematic diagram of the first skeleton provided in this application. Figure 2 .

[0037] Figure 8 for Figure 7 Enlarged view of the C-section structure.

[0038] Figure 9 This is a schematic diagram of the structure of the silicone sheet provided in this application.

[0039] Figure 10 This is an exploded structural diagram of the inductor provided in this application.

[0040] Figure label:

[0041] 1. Mounting frame; 11. First frame; 12. Second frame; 2. Electromagnetic assembly; 21. Coil; 211. Rounded corner; 22. Magnetic core; 3. Silicone sheet; 31. Planar area; 32. Curved area; 33. First silicone sheet; 34. Second silicone sheet; 4. Limiting structure; 41. Limiting plate; 42. Limiting block; 51. Electromagnetic assembly in the prior art; 52. Silicone sheet in the prior art. Detailed Implementation

[0042] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0043] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0045] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Inductors are often placed upside down during storage and transportation, so the silicone sheet needs to be reliably secured to prevent it from falling off. For example... Figure 1 The diagram shows an inductor structure in the prior art, in which a silicone sheet 52 is fixed to the surface of an electromagnetic component 51 by adhesive.

[0048] An inductor according to a first aspect embodiment of this application, such as Figures 2 to 10 As shown, the inductor includes a mounting frame 1, an electromagnetic component 2, and a silicone sheet 3. The electromagnetic component 2 is mounted in the mounting frame 1, and the silicone sheet 3 contacts the electromagnetic component 2 for heat dissipation. A limiting structure 4 is provided on the mounting frame 1, extending along the direction perpendicular to the thickness of the silicone sheet 3. The limiting structure 4 abuts against the silicone sheet 3 and restricts the movement of the silicone sheet 3.

[0049] The limiting structure 4 fixes the silicone sheet 3, so that one side of the silicone sheet 3 is in contact with the electromagnetic component 2 to facilitate heat dissipation from the electromagnetic component 2, while the other side of the silicone sheet 3 is used to contact other components. In practical applications, the other side of the silicone sheet 3 abuts against the aluminum shell.

[0050] The limiting structure 4 restricts the movement of the silicone sheet 3, including restricting the silicone sheet 3 from detaching from the electromagnetic component 2 (i.e., preventing the silicone sheet 3 from falling off), and restricting the silicone sheet 3 from sliding relative to the electromagnetic component 2.

[0051] The inductor in this application uses a limiting structure 4 on the mounting frame 1 to limit the installation of the silicone sheet 3, preventing its movement and ensuring proper installation and reliable connection. The limiting structure 4 physically restricts the displacement of the silicone sheet 3, avoiding the detachment problems caused by vibration or high temperature associated with traditional adhesive methods. This ensures continuous and tight contact between the silicone sheet 3 and the electromagnetic component 2, maintaining a stable heat conduction path. By using the limiting structure 4 on the mounting frame 1 to restrict the silicone sheet 3, there is no need for an adhesive layer between the silicone sheet 3 and the electromagnetic component 2, eliminating the need for increased adhesive layer thickness to enhance bonding strength. This avoids the drawback of increased thermal resistance, significantly improving the heat dissipation efficiency of the silicone sheet 3 and its heat dissipation effect on the electromagnetic component 2, while also reducing the overall size of the inductor to some extent. Furthermore, fixing the silicone sheet 3 using the limiting structure 4 on the mounting frame 1 eliminates the need for adhesive application during installation, simplifying the inductor manufacturing process. In addition, the limiting structure 4 can facilitate the installation of the silicone sheet 3. The limiting structure 4 can be used as a positioning reference during assembly to guide the silicone sheet 3 to be installed accurately, reduce the probability of misalignment, and improve assembly efficiency.

[0052] According to one embodiment of this application, such as Figures 1 to 5 , Figure 7 and Figure 8 As shown, a limiting plate 41 is provided on the mounting frame 1. The limiting plate 41 abuts against the end position of the silicone sheet 3 in the length direction to restrict the silicone sheet 3 from detaching from the electromagnetic component 2; the limiting structure 4 includes the limiting plate 41.

[0053] A limiting plate 41 is installed on the mounting frame 1 to hold the end of the silicone sheet 3 in place. This mechanical locking method replaces traditional adhesive fixing, solving the problems of unreliability and poor heat dissipation associated with traditional adhesive fixing. Firstly, the limiting plate 41 directly prevents the silicone sheet 3 from shifting during vibration, especially during transport bumps or equipment operation vibrations, effectively resisting detachment caused by vibration or impact (e.g., high-frequency vibration environments common in automotive scenarios). Secondly, by positioning the silicone sheet 3 (e.g., end-limiting in the length direction), the limiting plate 41 avoids misalignment during manual pasting, significantly improving the bonding accuracy between the silicone sheet 3 and the electromagnetic component 2, ensuring the heat dissipation path is not blocked, and preventing increased thermal resistance due to glue thickening. Furthermore, the rigid clamping effect of the limiting plate 41 does not rely on the adhesive's stickiness, preventing adhesive failure in high-temperature environments and maintaining stable contact during long-term use, reducing inductor performance degradation caused by silicone sheet detachment or shifting.

[0054] In practical applications, heat dissipation teeth can be provided on the side of the limiting plate 41 that is away from the silicone sheet 3 to improve the heat dissipation effect at the limiting plate 41.

[0055] According to one embodiment of this application, such as Figure 2 , Figure 3 and Figure 10 As shown, the electromagnetic component 2 includes a coil 21, the cross-section of which is a rectangle with rounded corners 211. The silicone sheet 3 includes a planar area 31 and curved areas 32 located at both ends of the planar area 31. The planar area 31 covers the first side of the coil 21, and the curved areas 32 extend to the rounded corners 211 at the ends of the first side. A limiting plate 41 is disposed on the mounting frame 1 at a position corresponding to the rounded corners 211, so that the limiting plate 41 is lower than the height of the planar area 31.

[0056] The electromagnetic component 2 may include a coil 21 and a magnetic core 22. The electromagnetic component 2 may adopt an existing structure, and the specific structure will not be described in detail here.

[0057] The phrase "the height of the limiting plate 41 is lower than that of the plane area 31" can be found in [reference needed]. Figure 2 and Figure 3 As shown, the purpose is to prevent the limiting plate 41 (limiting structure 4) from protruding from the plane area 31, so as to avoid the limiting plate 41 affecting the contact between the plane area 31 and the aluminum shell.

[0058] By precisely fitting the curved area 32 of the silicone sheet 3 to the rounded corner 211 of the coil 21 and by employing a low-profile design for the limiting plate 41, both the "limiting function" and "heat dissipation efficiency" are optimized. The flat area 31 of the silicone sheet 3 covers the first side of the coil 21, and the curved area 32 extends to the rounded corners 211 at both ends of the first side, increasing the contact area between the silicone sheet 3 and the coil 21 and improving the heat dissipation effect of the silicone sheet 3 on the coil 21. The limiting plate 41 is positioned corresponding to the rounded corner 211 and is lower than the height of the flat area 31. This not only restricts the movement of the silicone sheet 3 by resisting the curved area 32 but also prevents the limiting plate 41 from protruding from the silicone sheet 3, ensuring unobstructed contact between the flat area 31 of the silicone sheet 3 and the aluminum casing and preventing interference from the limiting plate 41. The aforementioned design of the limiting plate 41 is particularly suitable for compact inductors, balancing mechanical fixation and heat conduction requirements within a limited space.

[0059] According to one embodiment of this application, such as Figure 2 and Figure 3 As shown, the limiting plate 41 is a curved plate, and its shape matches the rounded corner 211 of the coil 21.

[0060] The limiting plate 41 adopts a curved panel design that matches the rounded corner 211 of the coil 21. Through the corresponding setting of the geometric shape, the gap value between the limiting plate 41 and the coil 21 is always the same as the thickness of the silicone sheet 3, realizing the gapless adhesion and limiting of the silicone sheet 3. The arc contour of the curved panel is the same as the shape of the rounded corner 211 of the coil 21, which makes the squeezing force of the limiting plate 41 and the coil 21 on the silicone sheet 3 more uniform. That is, the contact surface between the silicone sheet 3 and the limiting plate 41 is subjected to uniform force, avoiding the silicone sheet 3 from being easily squeezed and damaged.

[0061] According to one embodiment of this application, the side of the limiting plate 41 that contacts the silicone sheet 3 is provided with an anti-slip structure (not shown in the figure).

[0062] An anti-slip structure is provided on the contact surface between the limiting plate 41 and the silicone sheet 3, which effectively enhances the anti-slip ability of the silicone sheet 3 by increasing the interfacial friction coefficient. The anti-slip structure can be in the form of a grid pattern, serrated grooves, or micro-protrusions. The form of the anti-slip structure does not require increasing the clamping force of the limiting plate 41, avoiding deformation or cracking of the silicone sheet 3 caused by rigid compression. At the same time, the micro-protrusion of the anti-slip structure (height less than 0.3mm) does not affect the contact heat transfer between the silicone sheet 3 and the limiting plate 41, ensuring that the heat dissipation efficiency is not significantly affected.

[0063] In practical applications, an anti-slip layer can also be provided on the side of the limiting plate 41 that contacts the silicone sheet 3. The anti-slip layer can be made of a soft material, which increases the friction between the limiting plate 41 and the silicone sheet 3, restricts the sliding of the silicone sheet 3, and prevents the edge of the silicone sheet 3 from being squeezed and deformed for a long time.

[0064] According to one embodiment of this application, the length of the limiting plate 41 is 5 to 10 mm.

[0065] A limiting plate with a length of 5 to 10 mm can provide good support for the silicone sheet 3 without being too long and easily broken. The length of the limiting plate 41 can be specifically set to 8 mm.

[0066] According to one embodiment of this application, such as Figure 5 and Figure 8 As shown, a limiting block 42 is provided on the mounting frame 1. The limiting block 42 is connected to the limiting plate 41, and the limiting block 42 is located on the side of the limiting plate 41 facing the electromagnetic component 2. The limiting block 42 is located on the extension line of the length direction of the silicone sheet 3 and abuts against the end of the silicone sheet 3 to limit the relative sliding between the silicone sheet 3 and the electromagnetic component 2. The limiting structure 4 includes the limiting plate 41 and the limiting block 42.

[0067] The limiting plate 41 and the limiting block 42 combine to form a "double mechanical limiting" structure, which significantly improves the fixing reliability of the silicone sheet 3 through synergistic effect. The limiting plate 41 abuts against the end of the silicone sheet 3 along its length, providing surface contact constraint, dispersing stress under vibration or impact loads, and avoiding local cracking of the silicone sheet 3 caused by a single limiting point. The limiting plate 41 presses the silicone sheet 3 tightly, making the silicone sheet 3 adhere closely to the coil 21, mainly preventing the silicone sheet 3 from detaching from the electromagnetic component 2.

[0068] The limiting block 42 is located on the side of the limiting plate 41 facing the electromagnetic component 2, and abuts against the end of the silicone sheet 3 along the length extension line of the silicone sheet 3. The limiting block 42 restricts the relative sliding between the silicone sheet 3 and the electromagnetic component 2.

[0069] The limiting plate 41 and the limiting block 42 are combined to ensure that the silicone sheet 3 is limited on the surface of the coil 21 and will not move, misalign or fall off due to vibration or impact.

[0070] According to one embodiment of this application, such as Figure 5 and Figure 8 As shown, along the width direction of the limiting plate 41, the limiting block 42 is located between the two ends of the limiting plate 41, that is, the limiting block 42 can be located at the middle position of the limiting plate 41.

[0071] Of course, in some cases, the limiting block 42 can also be located at the end of the limiting plate 41.

[0072] According to one embodiment of this application, such as Figure 3 , Figure 4 and Figure 6As shown, the electromagnetic component 2 and the silicone sheet 3 are configured as two sets. The silicone sheet 3 includes a first silicone sheet 33 and a second silicone sheet 34. The right end of the first silicone sheet 33 is adjacent to the left end of the second silicone sheet 34. The limiting plate 41 at the right end of the first silicone sheet 33 is connected to the limiting plate 41 at the left end of the second silicone sheet 34, and they are an integral component.

[0073] By designing the limiting plate 41 of the two sets of silicone sheets 3 as an integral component, the strength of the limiting plate 41 at this position is improved, and the connection between the limiting plate 41 and the mounting frame 1 is not prone to breakage.

[0074] The first silicone sheet 33 and the second silicone sheet 34 are arranged adjacent to each other. The limiting plate 41 at the right end of the first silicone sheet 33 and the limiting plate 41 at the left end of the second silicone sheet 34 are connected as one piece, forming a rigid support structure spanning the two sets of silicone sheets 3, which significantly improves the stability of the overall limiting system. The one-piece structure reduces the number of limiting plates 41, thereby reducing mold complexity and production costs.

[0075] According to one embodiment of this application, the mounting frame 1 includes a first frame 11 and a second frame 12, which are joined together to form a complete mounting frame 1; a limiting structure 4 is provided on one of the first frame 11 and the second frame 12; or, both the first frame 11 and the second frame 12 are provided with limiting structures 4, such as... Figure 2 and Figure 3 As shown.

[0076] The mounting frame 1 adopts a split design with the first skeleton 11 and the second skeleton 12 docking together, and with the single or double side limiting structure 4, it realizes the organic combination of modular assembly flexibility and limiting reliability.

[0077] With limiting structures 4 on both sides of the frame, a two-way constraint system is formed. The limiting force acts evenly on the silicone sheet 3 from both sides, significantly improving vibration resistance, making it particularly suitable for high-reliability scenarios such as automotive and industrial applications. In addition, the split frame design supports quick disassembly and assembly of the electromagnetic components 2 (such as replacing damaged silicone sheet 3), greatly improving maintenance efficiency.

[0078] The selective arrangement (single-sided or double-sided) of the limiting structure 4 can be flexibly adjusted according to actual needs.

[0079] The inductor provided in this application may also include an aluminum housing. The aforementioned mounting frame 1, electromagnetic component 2, and silicone sheet 3 may all be disposed in the aluminum housing, and the planar area 31 of the silicone sheet 3 abuts against the aluminum housing.

[0080] In practical applications, an adjustable component can be provided on the aluminum casing. The adjustable component abuts against the limiting plate 41, and the clamping force of the limiting plate 41 on the silicone sheet 3 can be adjusted by adjusting the adjustable component. For example, the adjustable component can be a screw. The aluminum casing has a corresponding threaded hole. The screw is installed on the aluminum casing, with one end extending into the interior of the aluminum casing and abutting against the limiting plate 41 in a direction perpendicular to the limiting plate 41. The screw can be further tightened to further press the limiting plate 41, so that the limiting plate 41 further presses the silicone sheet 3, achieving the effect of adjustable clamping force of the limiting plate 41 on the silicone sheet 3.

[0081] The frame can be made of metal to ensure the required strength and improve the heat dissipation effect on the electromagnetic component 2.

[0082] An electronic control system according to a second aspect of this application includes the aforementioned inductor.

[0083] The electronic control system may include a boost circuit, in which the aforementioned inductor is provided. The aforementioned inductor may be a boost inductor.

[0084] A vehicle according to a third aspect of this application includes the aforementioned electronic control system.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. An inductor comprising a mounting frame (1), an electromagnetic component (2), and a silicone sheet (3), wherein the electromagnetic component (2) is mounted in the mounting frame (1), and the silicone sheet (3) contacts the electromagnetic component (2) for heat dissipation, characterized in that, The mounting frame (1) is provided with a limiting structure (4) extending in a direction perpendicular to the thickness of the silicone sheet (3). The limiting structure (4) abuts against the silicone sheet (3) and restricts the movement of the silicone sheet (3).

2. The inductor according to claim 1, characterized in that, A limiting plate (41) is provided on the mounting frame (1). The limiting plate (41) abuts against the end position of the silicone sheet (3) in the length direction to restrict the silicone sheet (3) from detaching from the electromagnetic component (2). The limiting structure (4) includes the limiting plate (41).

3. The inductor according to claim 2, characterized in that, The electromagnetic component (2) includes a coil (21), the cross-section of which is a rectangle with rounded corners (211); The silicone sheet (3) includes a planar area (31) and curved areas (32) located at both ends of the planar area (31). The planar area (31) covers the first side of the coil (21), and the curved areas (32) extend to the rounded corner (211) at the end of the first side. The limiting plate (41) is positioned on the mounting frame (1) at a location corresponding to the rounded corner (211) so that the limiting plate (41) is lower than the height of the planar area (31).

4. The inductor according to claim 3, characterized in that, The limiting plate (41) is a curved plate and matches the shape of the rounded corner (211) of the coil (21).

5. The inductor according to claim 2, characterized in that, The side of the limiting plate (41) that contacts the silicone sheet (3) is provided with an anti-slip structure.

6. The inductor according to claim 2, characterized in that, The length of the limiting plate (41) is 5 to 10 mm.

7. The inductor according to claim 2, characterized in that, A limiting block (42) is provided on the mounting frame (1). The limiting block (42) is connected to the limiting plate (41), and the limiting block (42) is located on the side of the limiting plate (41) facing the electromagnetic component (2). The limiting block (42) is located on the extension line of the length direction of the silicone sheet (3) and abuts against the end of the silicone sheet (3) to limit the relative sliding between the silicone sheet (3) and the electromagnetic component (2); The limiting structure (4) includes the limiting plate (41) and the limiting block (42).

8. The inductor according to claim 7, characterized in that, Along the width direction of the limiting plate (41), the limiting block (42) is located between the two ends of the limiting plate (41).

9. The inductor according to any one of claims 1 to 8, characterized in that, The electromagnetic component (2) and the silicone sheet (3) are configured as two sets, and the silicone sheet (3) includes a first silicone sheet (33) and a second silicone sheet (34). The right end of the first silicone sheet (33) is adjacent to the left end of the second silicone sheet (34), and the limiting plate at the right end of the first silicone sheet (33) is connected to the limiting plate at the left end of the second silicone sheet (34), and they are an integral component.

10. The inductor according to any one of claims 1 to 8, characterized in that, The mounting frame (1) includes a first frame (11) and a second frame (12), which are joined together to form the complete mounting frame (1). The limiting structure (4) is provided on one of the first skeleton (11) and the second skeleton (12); or, the limiting structure (4) is provided on both the first skeleton (11) and the second skeleton (12).

11. An electronic control system, characterized in that, Including the inductor as described in any one of claims 1 to 10.

12. A vehicle, characterized in that, Including the electronic control system as described in claim 11.

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