A dustproof device resistant to electromagnetic interference

By installing a bracket and dust cover between the HECU controller and the main control box, the problem of electromagnetic interference to the engine controller is solved, achieving electromagnetic interference isolation and dust protection, thereby improving the lifespan of the controller and vehicle safety.

CN224460202UActive Publication Date: 2026-07-03BEIJING AUTOMOBILE WORKS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING AUTOMOBILE WORKS CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the prior art, the engine control unit (HECU) is susceptible to electromagnetic interference, which can lead to performance degradation or even damage, affecting vehicle driving safety and service life.

Method used

A dustproof device for electromagnetic interference is designed. The HECU controller is isolated from the main control box by a bracket and a dust cover. The bracket is used for suspension to reduce vibration, and the dust cover is used to isolate electromagnetic interference and prevent dust from entering.

Benefits of technology

It effectively isolates electromagnetic interference, reduces the impact of dust, and improves the service life and driving safety of the HECU controller.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224460202U_ABST
    Figure CN224460202U_ABST
Patent Text Reader

Abstract

This utility model discloses a dustproof device for resisting electromagnetic interference, belonging to the field of automobile manufacturing. It mainly includes a main control box, with a bracket fixedly connected to the upper end of the main control box. An HECU controller is fixedly connected to the upper end of the bracket, and a dust cover fixedly connected to the upper end of the HECU controller is mounted on the bracket. The main control box houses the main controller. One end of the main control box is fixedly connected to a second communication serial port, and a fixing hole twelve is fixedly connected to one side of the second communication serial port. The other end is fixedly connected to a third communication serial port. Fixing holes ten and eleven are fixedly connected to two sides of one side of the main control box, and a fixing hole nine is fixedly connected to the other side. This utility model isolates the HECU controller from the main control box through the bracket and dust cover, preventing the electromagnetic field generated by the main controller from interfering with the HECU controller and affecting vehicle driving safety and service life.
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Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing, and more specifically, it relates to a dustproof device that resists electromagnetic interference. Background Technology

[0002] In the current domestic market, the layout of vehicle engines (hybrid) prioritizes compactness, simplicity, and aesthetics. This makes the placement of the engine controller more challenging. Especially given the prevalence of hybrid vehicles, the controller requires strong anti-interference capabilities. In MPVs, the engine controller is often placed close to other controllers and wiring harnesses, causing electromagnetic interference to the HECU controller, degrading its performance, and potentially damaging it.

[0003] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dustproof device that resists electromagnetic interference. It isolates the HECU controller from the main control box through a bracket and a dust cover to prevent the electromagnetic field generated by the main controller from interfering with the HECU controller and affecting the vehicle's driving safety and service life.

[0005] The aforementioned dustproof device for electromagnetic interference includes a main control box. A bracket is fixedly connected to the upper end of the main control box, and an HECU controller is fixedly connected to the upper end of the bracket. A dustproof cover fixedly connected to the upper end of the HECU controller is provided with a dustproof cover fixedly connected to the bracket. A main controller is installed inside the main control box. A second communication serial port is fixedly connected to one end of the main control box. A fixing hole twelve is fixedly connected to one side of the main control box, and a third communication serial port is fixedly connected to the other end. Fixing holes ten and eleven are fixedly connected to two sides of one side of the main control box, and a fixing hole nine is fixedly connected to the other side.

[0006] Preferably, the bracket is rectangular with a concave center. Four fixing holes (3) are provided around the concave area. One end of the bracket is fixedly connected to a leg (2), which is L-shaped and bends towards the bottom of the bracket. Fixing holes (5 and 6) are provided on both sides of leg (2), with holes (5 and 9) aligned. The other end of the bracket is fixedly connected to legs (1 and 3). Leg (1) is L-shaped and bends towards the bottom of the bracket, with fixing holes (4 and 4) provided. Fixing holes (4 and 12) are aligned and fixed with bolts. Leg (3) is L-shaped and bends upwards, with a fixing hole (8). A triangular support is fixedly connected to one side of the bottom of the bracket, with a fixing hole (7) at its bottom, aligned with a fixing hole (11) and fixed with bolts.

[0007] Preferably, the dust cover has a semi-enclosed structure, with the middle of the dust cover recessed downwards and the two sides protruding upwards. The recessed part of the dust cover abuts against the HECU controller. Side wings are fixedly connected to both ends of the dust cover, and two fixing holes are opened on the two side wings respectively. The fixing holes one and fixing holes three are aligned and fixedly connected.

[0008] Preferably, according to the dustproof device for resisting electromagnetic interference as claimed in the claim, the HECU controller includes an upper housing and a bottom protective plate. The upper housing is provided with two fixing holes around its perimeter that are aligned and fixedly connected to the fixing holes on the bracket. The bottom protective plate is threaded with fixing screws around its perimeter. The fixing screws are fixedly connected to the upper housing. A communication serial port is fixedly connected to one side of the upper housing.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention mounts the HECU controller between a bracket and a dust cover. The bracket is mounted on the main control box and is suspended, which can reduce vibration during vehicle operation. Furthermore, the bracket and dust cover are fixed together to isolate the HECU controller, preventing electromagnetic interference that could affect vehicle safety. It also isolates dust, greatly increasing the lifespan of the HECU and making vehicle operation safer. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model without the main control box;

[0013] Figure 3 A schematic diagram of the main control box;

[0014] Figure 4 This is a schematic diagram of the specific structure of the support;

[0015] Figure 5 A schematic diagram of the specific structure of the HECU controller;

[0016] Figure 6 This is a schematic diagram of the dust cover's specific structure.

[0017] In the diagram: 1. Dust cover; 101. Side wing; 102. Mounting hole one; 2. HECU controller; 201. Upper outer shell; 202. Mounting hole two; 203. Bottom protective plate; 204. Communication serial port one; 205. Mounting screw; 3. Bracket; 301. Mounting hole three; 302. Support leg one; 3021. Mounting hole; 3022. Mounting hole four; 303. Support leg two; 3031. Mounting hole five; 3032. Mounting hole six; 304. Triangular support base; 3041. Mounting hole seven; 305. Support leg three; 3051. Mounting hole eight; 4. Main control box; 401. Communication serial port two; 402. Mounting hole nine; 403. Communication serial port three; 404. Mounting hole ten; 405. Mounting hole eleven; 406. Mounting hole twelve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 1 to 6 As shown, a dustproof device for electromagnetic interference suppression includes a main control box 4. A bracket 3 is fixedly connected to the upper end of the main control box 4, and an HECU controller 2 is fixedly connected to the upper end of the bracket 3. A dust cover 1, fixedly connected to the bracket 3, is provided on the upper end of the HECU controller 2. The main controller is installed inside the main control box 4. This device isolates the HECU controller 2 to prevent the electromagnetic field generated by the main controller from interfering with it and affecting driving safety. Figure 3 As shown, one end of the main control box 4 is fixedly connected to a communication serial port 401, which connects to other control components of the vehicle. A mounting hole 12 406 is fixedly connected to one side of the main control box 4, and a communication serial port 3 403 is fixedly connected to the other end. Mounting holes 10 404 and 11 405 are fixedly connected to both sides of one side of the main control box 4, and mounting hole 9 402 is fixedly connected to the other side.

[0021] like Figure 4As shown, bracket 3 is rectangular with a recess in the middle. This design allows for the dissipation of heat generated by the HECU controller 2. Four fixing holes 301 are provided around the recess of bracket 3. One end of bracket 3 is fixedly connected to a support leg 303, which is L-shaped and bends towards the bottom of bracket 3. Fixing holes 3031 and 3032 are provided on both sides of support leg 303. Fixing hole 3031 aligns with fixing hole 402. The other end of bracket 3 is fixedly connected to a support leg 302 and a support leg 305. Support leg 302 is L-shaped and bends towards the bottom of bracket 3. Mounting bracket 2 has mounting holes 3021 and 3022. Mounting hole 3022 aligns with mounting hole 406 and is fixedly connected by bolts. Mounting leg 305 is L-shaped and bent upwards. Mounting leg 305 has mounting hole 3051. A triangular support base 304 is fixedly connected to one side of the bottom of the bracket 3. Mounting hole 3041 aligns with mounting hole 405 and is fixedly connected by bolts. Mounting legs 302, 303, and 304 are respectively suspended and fixed to the vehicle body and the main control box 4. Mounting leg 305 is suspended and fixed to the vehicle body. The bracket 3 is suspended above the main control box 4 to prevent excessive electromagnetic interference caused by close contact, which could interfere with the HECU controller 2 and affect its service life.

[0022] like Figure 6 As shown, the dust cover 1 has a semi-enclosed structure. The dust cover 1 is concave in the middle and convex on both sides. The concave part of the dust cover 1 abuts against the HECU controller 2, which can better fix the HECU controller 2 and transfer heat to the dust cover 1. The convex parts on both sides allow space to be released for heat dissipation. Side wings 101 are fixedly connected to both ends of the dust cover 1. Two fixing holes 102 are opened on the two side wings 101 respectively. Fixing holes 102 are aligned and fixedly connected with fixing holes 301.

[0023] like Figure 5 As shown, the HECU controller 2 includes an upper housing 201 and a bottom protective plate 203. The upper housing 201 has two fixing holes 202 around its perimeter that are aligned with and fixedly connected to the fixing holes 301 on the bracket 3. The bottom protective plate 203 is threaded with fixing screws 205 around its perimeter. The fixing screws 205 are fixedly connected to the upper housing 201. A communication serial port 204 is fixedly connected to one side of the upper housing 201.

[0024] The automobile of this invention includes a dustproof device with anti-electromagnetic interference as described above.

[0025] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dustproof device for resisting electromagnetic interference, comprising a main control box (4), wherein a bracket (3) is fixedly connected to the upper end of the main control box (4), and an HECU controller (2) is fixedly connected to the upper end of the bracket (3), wherein a dust cover (1) fixedly connected to the bracket (3) is provided on the upper end of the HECU controller (2), characterized in that... The main control box (4) is equipped with a main controller. One end of the main control box (4) is fixedly connected to a second communication serial port (401). The second communication serial port (401) is fixedly connected to a twelve-point fixing hole (406) on one side of the main control box (4). The other end is fixedly connected to a third communication serial port (403). The main control box (4) is fixedly connected to two points on one side with ten-point fixing holes (404) and eleven-point fixing holes (405). The other side is fixedly connected to nine-point fixing holes (402).

2. The dust-proof device against electromagnetic interference according to claim 1, characterized in that: The bracket (3) is rectangular with a concave center. Four fixing holes (301) are provided around the concave center of the bracket (3). One end of the bracket (3) is fixedly connected to a support leg (303). The support leg (303) is L-shaped and bends towards the bottom of the bracket (3). Fixing holes (5) and (6) are provided on both sides of the support leg (303). Fixing holes (5) and (9) are aligned with fixing hole (402). The other end of the bracket (3) is fixedly connected to a support leg (1) and a support leg (305). The support leg (302) is L-shaped and bends towards the bracket (3). The bottom is curved, and the first support leg (302) has a fixing hole (3021) and a fourth fixing hole (3022). The fourth fixing hole (3022) is aligned with the twelfth fixing hole (406) and fixedly connected by bolts. The third support leg (305) is "L" shaped and curved upward. The third support leg (305) has a eighth fixing hole (3051). A triangular support base (304) is fixedly connected to one side of the bottom of the bracket (3). The bottom of the triangular support base (304) has a seventh fixing hole (3041). The seventh fixing hole (3041) is aligned with the eleventh fixing hole (405) and fixedly connected by bolts.

3. The dust-proof device against electromagnetic interference according to claim 2, characterized in that: The dust cover (1) is a semi-enclosed structure. The dust cover (1) is concave in the middle and convex on both sides. The concave part of the dust cover (1) abuts against the HECU controller (2). Side wings (101) are fixedly connected to both ends of the dust cover (1). Two fixing holes (102) are opened on the two side wings (101). The fixing holes (102) are aligned and fixedly connected with the fixing holes (301).

4. The dust-proof device against electromagnetic interference according to claim 1, characterized in that: According to claim 1, the dustproof device for resisting electromagnetic interference is characterized in that: the HECU controller (2) includes an upper shell (201) and a bottom guard plate (203), the upper shell (201) is provided with a second fixing hole (202) around its perimeter that is aligned and fixedly connected to the third fixing hole (301) on the bracket (3), the bottom guard plate (203) is threaded with fixing screws (205) around its perimeter, the fixing screws (205) are fixedly connected to the upper shell (201), and a first communication serial port (204) is fixedly connected to one side of the upper shell (201).