Electromagnetic interference guiding structure and automobile
By setting multiple overlapping teeth and grooves on the electromagnetic shielding plate, the impedance discontinuity between the electromagnetic shielding plate and the shell is solved, achieving uniform guidance and intensity enhancement of electromagnetic interference, preventing electromagnetic interference reflection and scattering, and improving the electromagnetic compatibility of the motor controller.
Patent Information
- Application Number
- CN202520238668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In the prior art, there is a gap at the overlap between the electromagnetic shielding plate and the shell, which causes impedance discontinuity when electromagnetic interference passes through, resulting in reflection and scattering, which affects the use of other components in the motor controller.
The use of multiple overlapping teeth and grooves ensures a continuous and uniform low-impedance connection between the overlapping parts and the shell. Grooves are provided on both sides of the overlapping parts to allow partial movement of the electromagnetic shielding plate to enhance the overlapping strength and prevent the generation of high-impedance points. The uniform distribution of grooves and overlapping teeth prevents electromagnetic interference reflection and scattering.
It achieves uniform guidance of electromagnetic interference, prevents reflection and scattering of electromagnetic interference between the housing and the electromagnetic shielding plate, reduces the impact on other components in the motor controller, and improves electromagnetic compatibility.
Smart Images
Figure CN223584610U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of automobile accessories, and in particular relates to an electromagnetic interference guiding structure and an automobile. BACKGROUND
[0002] A motor controller of an automobile is a key component in an electric drive system of a new energy automobile, and the motor controller has functions of regulating current of a motor and controlling and managing input of voltage of the motor. An insulated gate bipolar transistor is a key element for controlling current flow in the motor controller.
[0003] The electromagnetic interference guiding structure of the related art comprises a shell, a low-voltage control board and a high-voltage power module, and the insulated gate bipolar transistor is arranged on the high-voltage power module. During switching of the insulated gate bipolar transistor, high-frequency electromagnetic interference is generated due to rapid change of current. In order to prevent the insulated gate bipolar transistor from affecting a low-voltage port on the low-voltage control board, an electromagnetic shielding plate is arranged in the shell and between the low-voltage control board and the high-voltage power module. The electromagnetic shielding plate is overlapped with the shell, so that when the electromagnetic interference reaches the electromagnetic shielding plate, the interference is guided to flow back to the ground through the shell, thereby reducing interference on the low-voltage port.
[0004] However, when the overlapping position of the electromagnetic shielding plate and the shell has a gap due to installation, impedance at the position with the gap is discontinuous, and sudden resistance change occurs when the electromagnetic interference passes through the position with the gap, so that the electromagnetic interference is reflected and propagated to other ports, thereby affecting use of other components in the motor controller. CONTENT OF THE UTILITY MODEL
[0005] The application provides an electromagnetic interference guiding structure to solve the technical problem that the electromagnetic shielding plate of the related art cannot be effectively and uniformly overlapped with the shell, so that the electromagnetic interference is propagated to other ports, thereby affecting use of other components in the motor controller.
[0006] In one aspect, the application provides an electromagnetic interference guiding structure, comprising:
[0007] a shell;
[0008] an electromagnetic shielding plate arranged in the shell, opposite sides of the electromagnetic shielding plate being used to respectively mount a low-voltage control board and a high-voltage power module of a motor controller, and at least two grooves being arranged on the electromagnetic shielding plate;
[0009] a plurality of overlapping pieces, the plurality of overlapping pieces being uniformly distributed on the electromagnetic shielding plate, the plurality of overlapping pieces being arranged between adjacent two grooves, and the overlapping pieces being used to overlap with the shell to guide electromagnetic interference generated by at least one of the low-voltage control board and the high-voltage power module to the shell.
[0010] In some embodiments, one side of the electromagnetic shielding plate is provided with a recess, the lapping piece is arranged at the bottom edge of the recess, and the groove is arranged on the recess, so that the low-voltage port of the low-voltage control plate is accommodated when the low-voltage control plate is connected to the electromagnetic shielding plate.
[0011] In some embodiments, the shell is provided with a lapping port, and the lapping piece is used to lap the bottom wall of the lapping port.
[0012] In some embodiments, the installation piece is further included, and the installation piece is arranged on both sides of the electromagnetic shielding plate, and is used to detachably connect the electromagnetic shielding plate to the shell.
[0013] In some embodiments, the installation piece includes a mounting bolt, the mounting bolt is arranged on the electromagnetic shielding plate, and the mounting bolt is used to be screwed to the shell.
[0014] In some embodiments, the groove is closed at the end close to the electromagnetic shielding plate, and the end away from the electromagnetic shielding plate is arranged through the bottom wall of the recess.
[0015] In some embodiments, the length of the groove is equal to the spacing between adjacent lapping pieces.
[0016] In some embodiments, the extension direction of the groove is the same as the extension direction of the lapping piece.
[0017] In some embodiments, the lapping piece is a lapping tooth.
[0018] In another aspect, the application provides an automobile, comprising a vehicle body and the electromagnetic interference guiding structure arranged on the vehicle body.
[0019] This application provides an electromagnetic interference (EMI) guiding structure and an automobile. The EMI guiding structure utilizes multiple overlapping members evenly distributed on an electromagnetic shielding plate. This creates a continuous and uniform low-impedance connection between the overlapping members and the housing. When the insulated-gate bipolar transistor (IGBT) on the high-voltage power module generates EMI, the EMI can be guided to the housing through the evenly overlapping members, and then to ground. This prevents high-impedance points caused by uneven overlapping between the electromagnetic shielding plate and the housing, and prevents EMI reflection and scattering due to resistance changes when passing through the overlapping members. This prevents EMI from propagating to other electronic ports and affecting other components within the motor controller. By setting grooves on both sides of multiple overlapping parts, after the electromagnetic shielding plate is connected to the housing, the part of the electromagnetic shielding plate located where multiple overlapping parts are located can move relative to the remaining part of the electromagnetic shielding plate. This makes it easier for the part of the electromagnetic shielding plate where multiple overlapping parts are located to deform, thereby making the multiple overlapping parts better interfere with the housing. In other words, the electromagnetic shielding plate can drive the multiple overlapping parts to press against the housing, improving the overlapping strength between the overlapping parts and the housing. This prevents a single overlapping part from having both low impedance and high impedance points at the same time, thus preventing electromagnetic interference from being reflected and scattered when passing through a single overlapping part. This further prevents electromagnetic interference from propagating to other electronic ports and further prevents electromagnetic interference from affecting other components in the motor controller. Attached Figure Description
[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0021] Figure 1 This is an exploded structural diagram of the electromagnetic interference guiding structure provided in the embodiments of this application;
[0022] Figure 2 A schematic cross-sectional view of the electromagnetic interference guiding structure provided in the embodiments of this application. Figure One ;
[0023] Figure 3 for Figure 1 Schematic diagram of the electromagnetic shielding plate;
[0024] Figure 4 A schematic cross-sectional view of the electromagnetic interference guiding structure provided in the embodiments of this application. Figure Two .
[0025] Explanation of reference numerals in the attached figures:
[0026] 100. Shell; 120. Interlocking joint;
[0027] 200, electromagnetic shielding plate; 210, recess; 211, vertical part; 212, horizontal part; 213, groove; 220, mounting hole;
[0028] 300, lapping piece; 310, lapping tooth;
[0029] 400, low-voltage control board; 410, low-voltage port;
[0030] 500, high-voltage power module.
[0031] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to illustrate the concept of the present application by reference to specific embodiments. DETAILED DESCRIPTION
[0032] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The same numbers refer to the same elements throughout the drawings. The following detailed description does not limit the present application to particular embodiments. Instead, the scope of the present application is to be defined by the appended claims.
[0033] As described in the background, the electromagnetic interference guide structure of the related art includes a shell, a low-voltage control board, and a high-voltage power module, and an insulated gate bipolar transistor is arranged on the high-voltage power module. During the switching of the insulated gate bipolar transistor, high-frequency electromagnetic interference is generated due to the rapid change of current. In order to prevent the insulated gate bipolar transistor from affecting the low-voltage port on the low-voltage control board, an electromagnetic shielding plate is arranged in the shell and between the low-voltage control board and the high-voltage power module. By lapping the electromagnetic shielding plate with the shell, when the electromagnetic interference reaches the electromagnetic shielding plate, the interference is guided to flow back to the ground through the shell, thereby reducing the interference to the low-voltage port.
[0034] However, when the overlapping position of the electromagnetic shielding plate and the shell has a gap due to installation, the impedance at the position with the gap is discontinuous, and the electromagnetic interference will have a sudden resistance change when passing through the position with the gap, thereby causing the electromagnetic interference to be reflected and propagated to other ports, affecting the use of other components in the motor controller; the impedance mutation caused by the resistance change may also cause additional resonance at certain frequencies, which will increase the amplitude of the electromagnetic interference, thereby increasing the risk of exceeding the electromagnetic compatibility. The resonance phenomenon refers to the fact that at a certain frequency, the impedance of the circuit reaches a minimum, causing the electromagnetic interference to be enhanced. If there are long gaps, these gaps may produce an antenna effect under the action of electromagnetic waves at a certain frequency. This means that the gaps will radiate electromagnetic waves like an antenna, making it easier for electromagnetic interference to be radiated outward through these gaps, increasing the propagation range and intensity of the electromagnetic interference, thereby further affecting other components in the motor controller.
[0035] To solve the above technical problems, the embodiments of the present application provide an electromagnetic interference guiding structure and a car. By adopting the arrangement of multiple overlapping teeth and groove bodies, the multiple overlapping teeth and the shell are connected in a continuous and uniform low-impedance manner, and groove bodies are arranged on both sides of the multiple overlapping teeth. When the electromagnetic shielding plate is connected to the shell by a bolt, the part of the electromagnetic shielding plate located at the multiple overlapping teeth can move relative to the remaining part of the electromagnetic shielding plate, so that the part of the electromagnetic shielding plate where the multiple overlapping teeth are located is more prone to deformation, thereby improving the overlapping strength of the overlapping teeth and the bottom wall of the overlapping port. When the insulated gate bipolar transistor on the high-voltage power module generates electromagnetic interference, the electromagnetic interference can be guided to the shell through the multiple overlapping teeth that uniformly overlap with the shell, thereby preventing high-impedance points from occurring between the electromagnetic shielding plate and the shell due to uneven overlapping, and preventing the electromagnetic interference from being reflected and scattered due to changes in resistance when passing through the groove bodies and the multiple overlapping teeth, thereby preventing the electromagnetic interference from propagating to other electronic ports and preventing the electromagnetic interference from affecting other components in the motor controller.
[0036] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.
[0037] In combination with Figures 1 to 4 An electromagnetic interference guiding structure, comprising:
[0038] a shell 100;
[0039] An electromagnetic shielding plate 200 is arranged in the shell 100, opposite sides of the electromagnetic shielding plate 200 are used to mount a low-voltage control board 400 of a motor controller and a high-voltage power module 500 respectively, and at least two groove bodies 213 are arranged on the electromagnetic shielding plate 200;
[0040] A plurality of overlapping pieces 300 are uniformly distributed on the electromagnetic shielding plate 200, the plurality of overlapping pieces 300 are arranged between adjacent two groove bodies 213, and the overlapping pieces 300 are used to overlap with the shell 100 to guide electromagnetic interference generated by at least one of the low-voltage control board 400 and the high-voltage power module 500 to the shell 100.
[0041] In the embodiment, two groove bodies 213 are arranged, and the plurality of overlapping pieces 300 are arranged between the two groove bodies 213; the shell 100 is a cuboid, the top wall of the cuboid shell 100 is arranged as an opening; the electromagnetic shielding plate 200 is arranged in the shell 100 along the horizontal direction, the lower part of the electromagnetic shielding plate 200 is used to mount the high-voltage power module 500 of the motor controller, and the upper part of the electromagnetic shielding plate 200 is used to mount the low-voltage control board 400 of the motor controller; the overlapping pieces 300 are used to guide electromagnetic interference generated by an insulated gate bipolar transistor on the high-voltage power module 500 to the shell 100, the shell 100 is grounded, so that the shell 100 transmits the electromagnetic interference to the ground; and the overlapping pieces 300 are arranged in seven.
[0042] In the present application, by adopting a plurality of overlapping pieces 300 and uniformly distributing the plurality of overlapping pieces 300 on the electromagnetic shielding plate 200, the plurality of overlapping pieces 300 and the shell 100 have a continuous and uniform low-impedance connection. When the insulated gate bipolar transistor on the high-voltage power module 500 generates electromagnetic interference, the electromagnetic interference can be guided to the shell 100 through the plurality of overlapping pieces 300 uniformly overlapped with the shell 100, and then guided to the ground through the shell 100, preventing the electromagnetic shielding plate 200 and the shell 100 from having a high-impedance point due to uneven overlapping, preventing electromagnetic interference from being reflected and scattered due to changes in resistance when passing through the plurality of overlapping pieces 300, thereby preventing electromagnetic interference from propagating to other electronic ports and preventing electromagnetic interference from affecting other components in the motor controller. By providing grooves 213 on both sides of the plurality of overlapping pieces 300, after the electromagnetic shielding plate 200 is connected to the shell 100, the part of the electromagnetic shielding plate 200 located on the plurality of overlapping pieces 300 can move relative to the remaining part of the electromagnetic shielding plate 200, thereby making the part of the electromagnetic shielding plate 200 where the plurality of overlapping pieces 300 are located more prone to deformation, thereby allowing the plurality of overlapping pieces 300 to better interfere with the shell 100. That is, the electromagnetic shielding plate 200 can drive the plurality of overlapping pieces 300 to abut against the shell 100, improving the overlapping strength between the overlapping pieces 300 and the shell 100, thereby preventing a single overlapping piece 300 from having both a low-impedance point and a high-impedance point, thereby preventing electromagnetic interference from being reflected and scattered when passing through a single overlapping piece 300, thereby further preventing electromagnetic interference from propagating to other electronic ports and further preventing electromagnetic interference from affecting other components in the motor controller.
[0043] In the present embodiment, the interference between the electromagnetic shielding plate 200 and the shell 100 is 0.3mm; when the electromagnetic shielding plate 200 is connected to the shell 100, the electromagnetic shielding plate 200 and the shell 100 simultaneously deform rigidly to achieve interference; in the present embodiment, the grooves 213 are arranged in a "U" shape, and the length of the grooves 213 is set to 15mm.
[0044] In combination Figures 1 to 4 , one side of the electromagnetic shielding plate 200 is provided with a recess 210, the overlapping piece 300 is arranged at the bottom edge of the recess 210, and the groove 213 is arranged on the recess 210. The recess 210 is used to accommodate the low-voltage port 410 of the low-voltage control plate 400 when the low-voltage control plate 400 is connected to the electromagnetic shielding plate 200.
[0045] In the embodiment, the cross section of the recess 210 is arranged in an "L" shape, the "L" shaped recess 210 is arranged along the length direction of one side edge of the electromagnetic shielding plate 200, and the two ends of the "L" shaped recess 210 along the length direction of the edge of the electromagnetic shielding plate 200 are arranged in a closed manner; the "L" shaped recess 210 has a vertical part 211 and a horizontal part 212, and the lapping piece 300 is arranged at the edge of the horizontal part 212 of the recess 210 away from the vertical part 211.
[0046] In the application, by adopting the arrangement of the recess 210, the recess 210 can accommodate the low-voltage port 410 of the low-voltage control panel 400, so that the electromagnetic shielding plate 200 can utilize the space below the high-voltage power module 500, thereby the entire shell 100 can be arranged smaller, and the space occupation of the entire shell 100 is reduced; and by adopting the arrangement of the recess 210, the bent recess 210 can prevent electromagnetic interference from propagating to the low-voltage port 410 of the low-voltage control panel 400, thereby further preventing the electromagnetic interference from affecting other components on the motor controller.
[0047] In combination Figures 1 to 4 , the shell 100 is provided with a lapping port 120, and the lapping piece 300 is used to lap with the bottom wall of the lapping port 120.
[0048] In the embodiment, the lapping port 120 is arranged in a "U" shape.
[0049] In the application, by adopting the arrangement of the lapping port 120, the low-voltage port 410 located in the recess 210 can directly electrically connect with the vehicle controller of the automobile through the lapping port 120, thereby further reducing the space occupation of the shell 100; and by adopting the arrangement of the lapping port 120, the plurality of lapping pieces 300 can directly lap with the shell 100 through the bottom wall of the lapping port 120, compared with the abutting mode of the lapping piece 300 and the inner wall of the shell 100, the lapping area between the lapping piece 300 and the shell 100 is increased, thereby indirectly improving the guiding efficiency of the lapping piece 300 for guiding the electromagnetic interference to the shell 100.
[0050] In combination Figures 1 to 4 , the electromagnetic interference guiding structure further comprises a mounting piece, and the mounting piece is arranged on both sides of the electromagnetic shielding plate 200, and the mounting piece is used to detachably connect the electromagnetic shielding plate 200 to the shell 100.
[0051] In the embodiment, the mounting piece is arranged on the electromagnetic shielding plate 200 and located on both sides of the recess 210; in other embodiments, the position of the mounting piece can be adaptively adjusted as needed.
[0052] In the present application, by adopting the installation of the installation piece, the electromagnetic shielding plate 200 can be detachably connected in the shell 100 through the installation piece, thereby facilitating the maintenance and replacement of the electromagnetic shielding plate 200. When the electromagnetic shielding plate 200 is removed, it is convenient to maintain and replace the low-voltage control plate 400 and the high-voltage power module 500 on the electromagnetic shielding plate 200.
[0053] In combination Figures 1 to 4 , the installation piece includes an installation bolt, the installation bolt is provided through the electromagnetic shielding plate 200, and the installation bolt is used for threaded connection with the shell 100; in the present embodiment, the installation hole 220 is provided on the electromagnetic shielding plate 200 and located at both sides of the electromagnetic shielding plate 200, and the installation hole 220 is used for the rod part of the installation bolt to pass through.
[0054] In the present application, by adopting the installation of the installation bolt, the convenience of installation and disassembly of the electromagnetic shielding plate 200 is improved; and the fixing strength of the electromagnetic shielding plate 200 fixed on the shell 100 is improved, thereby preventing the electromagnetic shielding plate 200 from being separated from the shell 100, and indirectly improving the strength of the lap joint 300 extruding the bottom wall of the lap joint 120 to abut against the bottom wall of the lap joint 120.
[0055] In the present application, by adopting the setting of the groove body 213, when the electromagnetic shielding plate 200 is installed, the electromagnetic shielding plate 200 is not easy to elastically deform due to its high rigidity, thereby preventing stress from being transmitted to the position where the bolt is located when the lap joint 300 extrudes the bottom wall of the lap joint 120, thereby preventing abnormal attenuation of the bolt torque, and indirectly improving the fixing strength of the bolt on the electromagnetic shielding plate 200 when the lap joint 300 is lapped with the bottom wall of the lap joint 120. When the bolt is continuously tightened, the electromagnetic shielding plate 200 can drive the plurality of lap joints 300 to continuously abut against the bottom wall of the lap joint 120. At this time, the part of the electromagnetic shielding plate 200 located at the plurality of lap joints 300 can move relative to the remaining part of the electromagnetic shielding plate 200. Due to the high rigidity of the electromagnetic shielding plate 200, the part of the electromagnetic shielding plate 200 where the plurality of lap joints 300 are located is more prone to deformation, thereby enabling the plurality of lap joints 300 to better interfere with the shell 100. That is, the electromagnetic shielding plate 200 can drive the plurality of lap joints 300 to abut against the shell 100, thereby further improving the lapping strength between the lap joint 300 and the shell 100. In combination Figures 1 to 4 , the end of the groove body 213 close to the electromagnetic shielding plate 200 is closed, and the end of the groove body 213 away from the electromagnetic shielding plate 200 penetrates the bottom wall of the recess 210.
[0056] In the present application, by penetrating the bottom wall of the recess 210 with the end of the groove body 213 away from the electromagnetic shielding plate 200, the machining of the groove body 213 is facilitated, and the convenience of machining the groove body 213 is improved.
[0057] In combination Figures 1 to 4 The length of the groove 213 is equal to the distance between the adjacent overlapping pieces 300, and the extension direction of the groove 213 is the same as the extension direction of the overlapping pieces 300.
[0058] In this embodiment, the distance between the adjacent overlapping pieces 300 is 15 mm.
[0059] In this application, by setting the length of the groove 213 to be the same as the length between the adjacent overlapping pieces 300, and setting the extension direction of the groove 213 to be the same as the extension direction of the overlapping pieces 300, the groove 213 and the plurality of overlapping pieces 300 are evenly distributed in the recess 210, thereby preventing the recess 210 of the electromagnetic shielding plate 200 from having high impedance points due to the uneven distribution of the groove 213 and the overlapping pieces 300, preventing electromagnetic interference from being reflected and scattered due to changes in resistance when passing through the plurality of grooves 213, thereby preventing electromagnetic interference from propagating to other electronic ports, and preventing electromagnetic interference from affecting other components in the motor controller. Figures 1 to 4 In combination
[0060] In this embodiment, the overlapping teeth 310 are located in the same plane as the electromagnetic shielding plate 200, and the edge of the overlapping teeth 310 away from the edge of the electromagnetic shielding plate 200 is arc-shaped; in other embodiments, the shape of the overlapping teeth 310 can be adjusted as needed.
[0061] The application adopts the simple structure of the overlapping teeth 310, which is convenient for processing and manufacturing a plurality of overlapping teeth 310, thereby reducing the processing cost of manufacturing a plurality of overlapping teeth 310.
[0062] The application also provides an automobile, which comprises a vehicle body and the electromagnetic interference guiding structure of any one of the above embodiments arranged on the vehicle body.
[0063] The specific structure of the electromagnetic interference guiding structure has been described in detail in the above embodiments, and will not be repeated here.
[0064] The automobile provided by the embodiment of the application is provided with an electromagnetic interference guiding structure, a plurality of overlapping teeth 310 and groove bodies 213 are arranged, so that the plurality of overlapping teeth 310 and the shell 100 are connected in a continuous and uniform low impedance manner, the groove bodies 213 are arranged on both sides of the plurality of overlapping teeth 310, when the electromagnetic shielding plate 200 and the shell 100 are connected through bolts, the part of the electromagnetic shielding plate 200 located at the plurality of overlapping teeth 310 can move relative to the remaining part of the electromagnetic shielding plate 200, so that the part of the electromagnetic shielding plate 200 where the plurality of overlapping teeth 310 are located is more prone to deformation, thereby improving the overlapping strength of the overlapping teeth 310 and the bottom wall of the overlapping portion 120, when the insulated gate bipolar transistor on the high-voltage power module 500 generates electromagnetic interference, the electromagnetic interference can be guided to the shell 100 through the plurality of overlapping teeth 310 which are uniformly overlapped with the shell 100, thereby preventing the electromagnetic shielding plate 200 and the shell 100 from generating a high impedance point due to uneven overlapping, and when the electromagnetic interference passes through the groove body 213, the spacing between the groove body 213 and the adjacent overlapping tooth 310 is the same, thereby preventing the plurality of overlapping teeth 310 and the groove body 213 which are unevenly distributed on the electromagnetic shielding plate 200 from generating a high impedance point, preventing the electromagnetic interference from reflecting and scattering due to the change of resistance when passing through the groove body 213 and the plurality of overlapping teeth 310, thereby preventing the electromagnetic interference from propagating to other electronic ports and preventing the electromagnetic interference from affecting other components in the motor controller.
[0065] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.
[0066] It is to be understood that the application is not limited to the precise construction described and shown herein and that changes can be made without departing from the scope of the application. The scope of the application is limited only by the claims appended hereto.
Claims
1. An electromagnetic interference guiding structure, characterized by, The electromagnetic interference guiding structure comprises: a shell (100); an electromagnetic shielding plate (200) arranged in the shell (100), opposite sides of the electromagnetic shielding plate (200) being used for mounting a low-voltage control board (400) of a motor controller and a high-voltage power module (500) respectively, at least two groove bodies (213) being arranged on the electromagnetic shielding plate (200); a plurality of clamping members (300) uniformly distributed on the electromagnetic shielding plate (200), the plurality of clamping members (300) being arranged between adjacent two groove bodies (213), the clamping members (300) being used for clamping with the shell (100) to guide electromagnetic interference generated by at least one of the low-voltage control board (400) and the high-voltage power module (500) to the shell (100).
2. The electromagnetic interference guiding structure according to claim 1, characterized in that One side of the electromagnetic shielding plate (200) is provided with a recess (210), the clamping members (300) are arranged at the bottom edge of the recess (210), the groove bodies (213) are arranged on the recess (210), and the recess (210) is used for accommodating a low-voltage port (410) of the low-voltage control board (400) when the low-voltage control board (400) is connected with the electromagnetic shielding plate (200).
3. The electromagnetic interference guiding structure of claim 1, wherein, The shell (100) is provided with a clamping opening (120), and the clamping members (300) are used for clamping with the bottom wall of the clamping opening (120).
4. The electromagnetic interference guiding structure according to any one of claims 1 to 3, characterized in that Further comprising a mounting member, the mounting member being arranged on both sides of the electromagnetic shielding plate (200), and the mounting member being used for detachably connecting the electromagnetic shielding plate (200) on the shell (100).
5. The electromagnetic interference guiding structure according to claim 4, characterized in that The mounting member comprises a mounting bolt, the mounting bolt being arranged on the electromagnetic shielding plate (200), and the mounting bolt being used for threadedly connecting with the shell (100).
6. The electromagnetic interference guiding structure of claim 2, wherein, The groove body (213) is closed at the end close to the electromagnetic shielding plate (200), and the end of the groove body (213) away from the electromagnetic shielding plate (200) is arranged through the bottom wall of the recess (210).
7. The electromagnetic interference guiding structure according to any one of claims 1 to 3, characterized in that The length of the groove body (213) is equal to the spacing between adjacent clamping members (300).
8. The electromagnetic interference guiding structure according to any one of claims 1 to 3, characterized in that The extension direction of the groove body (213) is the same as the extension direction of the clamping member (300).
9. The electromagnetic interference guiding structure according to any one of claims 1 to 3, characterized in that The clamping member (300) is a clamping tooth (310).
10. An automobile characterized by comprising: The electromagnetic interference guiding structure is arranged on a vehicle body.