Electromagnetic interference resistant vehicle controller housing

Abstract

The utility model discloses a vehicle -mounted controller shell of anti -electromagnetic interference, including main shell, its top assembly has the top board, is provided with the heat dissipation mouth on the top board, the fixed mounting of heat dissipation mouth has the protection part, the inside fixed mounting of main shell has the baffle, and the inside is divided into installation cavity no.

Description

Technical Field

[0001] This utility model relates to the field of vehicle controller housing technology, specifically to a vehicle controller housing that is resistant to electromagnetic interference. Background Technology

[0002] Vehicle controllers (such as ECUs and MCUs) are core components of vehicle electronic systems. Their housings must have mechanical protection, environmental sealing, and electromagnetic shielding (EMI / EMC) to ensure the stable operation of internal circuits under complex operating conditions.

[0003] Traditional vehicle controller housings are typically made of metal (such as die-cast aluminum alloy) or conductive plastic to meet basic electromagnetic shielding requirements.

[0004] However, although the current vehicle controller housing itself has the required shielding effect, due to structural limitations, the openings in the heat dissipation area and the wiring area of ​​the housing lack corresponding shielding treatment, which leads to electromagnetic wave leakage. This will cause the anti-interference performance of the internal circuit of the housing to decrease. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic interference-proof vehicle controller housing to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic interference-proof vehicle controller housing, comprising: a main housing, on which a top plate is mounted, a heat dissipation vent is provided on the top plate, a protective component is fixedly installed on the heat dissipation vent, and a partition is fixedly installed inside the main housing, dividing the interior of the main housing into a first mounting cavity and a second mounting cavity through the partition.

[0007] The wire component is assembled in mounting cavity one and communicates with mounting cavity two. The outer side of the main shell is fixedly installed with a mounting port corresponding to the wire component.

[0008] A copper wire mesh cover is assembled inside mounting cavity two;

[0009] The protective component includes a waveguide ventilation plate and conductive foam. A heat dissipation vent is provided on the top plate, and the waveguide ventilation plate is fixedly installed inside the heat dissipation vent. The bottom of the waveguide ventilation plate is fixedly connected to conductive foam.

[0010] The wire component includes a wire channel and a conductive putty layer. The wire channel, which is connected to the mounting port and the second mounting cavity, is fixedly connected in the first mounting cavity. The conductive putty layer is installed inside the wire channel.

[0011] Preferably, the top of the main shell is provided with a splicing groove, the bottom of the top plate is fixedly connected with a splicing block that is assembled with the splicing groove, and the main shell and the top plate are provided with corresponding mounting holes.

[0012] Preferably, a conductive pad is fixed to the bottom surface of the top plate, and heat dissipation fins are fixedly installed on the top of the top plate, with the heat dissipation fins corresponding to the heat dissipation vents.

[0013] Preferably, a mounting base is fixedly installed on the outer side of the main shell, and the mounting base is provided with screw holes.

[0014] Preferably, a cover plate is movably installed on the top of the wire channel, and a connecting plate that is movably connected to the copper wire mesh cover is movably installed on the top of the partition. The cover plate and the wire channel are connected by a movable shaft one, and the partition and the connecting plate are connected by a movable shaft two.

[0015] Preferably, both the conductive foam and the waveguide ventilation plate are provided with corresponding honeycomb holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Simple structure, small footprint, especially suitable for vehicle controller housings with limited space;

[0018] 2. Through the internal design of the protective components and wire components on the top plate, not only are the daily ventilation and heat dissipation needs guaranteed, but also an isolation layer with a shielding effect is formed at the heat dissipation connection point, ensuring that the shell shielding does not leak.

[0019] 3. The copper wire mesh cover forms a protective layer on the shell itself, providing secondary protection and achieving a double-layer electromagnetic interference protection effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the vehicle-mounted controller housing of this utility model;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the top plate and protective components of the vehicle controller housing of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the vehicle-mounted controller housing of this utility model;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the partition, wire components, and copper wire mesh cover of the vehicle controller housing of this utility model.

[0024] Figure label:

[0025] 100. Main shell; 101. Mounting base; 102. Splicing groove;

[0026] 200. Top plate; 201. Heat dissipation vent; 202. Connecting block; 203. Conductive pad;

[0027] 300. Installation port;

[0028] 400. Protective components; 401. Heat dissipation fins; 402. Waveguide ventilation plate; 403. Conductive foam;

[0029] 500. Conductor component; 501. Conductor channel; 502. Cover plate; 503. Conductive putty layer;

[0030] 600. Partition;

[0031] 700. Copper wire mesh cover; 701. Connecting plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example: This utility model provides a technical solution for an electromagnetic interference-proof vehicle controller housing, such as... Figures 1-4 As shown, it includes: a main shell 100, on which a top plate 200 is mounted, a heat dissipation vent 201 is provided on the top plate 200, a protective component 400 is fixedly installed on the heat dissipation vent 201, and a partition 600 is fixedly installed inside the main shell 100, dividing the main shell 100 into a first mounting cavity and a second mounting cavity through the partition 600; the top plate 200 and the main shell 100 are made of the same aluminum alloy material, and the top plate 200 and the main shell 100 form the first protective and shielding layer. The top plate 200, through the internal protective component 400, not only ensures its own ventilation effect, but also forms an isolation layer with a shielding effect at the heat dissipation vent 201, ensuring that the shielding of the top plate 200 does not leak; the first mounting cavity realizes the external wires of the shell, and the second mounting cavity realizes the internal installation of the circuit board, and the two are separated by the partition 600.

[0034] The wire component 500 is assembled in the first mounting cavity and communicates with the second mounting cavity. The outer side of the main shell 100 is fixedly installed with a mounting port 300 corresponding to the wire component 500. The mounting port 300 facilitates the installation of the wiring port by personnel, so that the connecting wire on the end can enter the second mounting cavity through the wire component 500.

[0035] The copper wire mesh cover 700 is assembled inside the second mounting cavity; the copper wire mesh cover 700 provides secondary protection through the protective layer formed on the shell itself, achieving the effect of double-layer electromagnetic interference protection for the shell.

[0036] The protective component 400 includes a waveguide ventilation plate 402 and conductive foam 403. A heat dissipation vent 201 is provided on the top plate 200. The waveguide ventilation plate 402 is fixedly installed inside the heat dissipation vent 201, and the conductive foam 403 is fixedly connected to the bottom of the waveguide ventilation plate 402. By utilizing the stacking effect between the waveguide ventilation plate 402 and the conductive foam 403, while ensuring the daily ventilation and heat dissipation of the shell, the heat dissipation vent 201 can also be protected by the waveguide ventilation plate 402 and the conductive foam 403, which can block electromagnetic waves.

[0037] The conductor component 500 includes a conductor channel 501 and a conductive putty layer 503. The conductor channel 501, which communicates with the mounting opening 300 and the second mounting cavity, is fixedly connected to a mounting cavity one. The conductive putty layer 503 is fitted inside the conductor channel 501. The conductive putty layer 503 not only wraps the conductors within the conductor channel 501 but also fills and seals the interior of the conductor channel 501, effectively compensating for the space in the conductor channel and achieving a continuous shielding and blocking effect. The conductive putty layer is made of conductive adhesive, which is an adhesive that has a certain conductivity after curing or drying. It can connect various conductive materials together, forming an electrical path between the connected materials. In the electronics industry, conductive adhesive has become an indispensable new material. According to the different types of conductive particles in the conductive adhesive, conductive adhesives can be divided into silver-based conductive adhesives, gold-based conductive adhesives, copper-based conductive adhesives, and carbon-based conductive adhesives, etc., with silver-based conductive adhesives being the most widely used.

[0038] In one embodiment, the top of the main shell 100 is provided with a splicing groove 102, and the bottom of the top plate 200 is fixedly connected with a splicing block 202 that is assembled with the splicing groove 102. The main shell 100 and the top plate 200 are provided with corresponding mounting holes. The splicing groove 102 and the splicing block 202 are spliced ​​together. When separating the top plate 200 from the main shell 100, the top plate 200 can be pushed to the side to complete the separation. When reinstalling, the top plate 200 can be installed and fastened to external components through the corresponding mounting holes of the main shell 100 and the main shell 100.

[0039] In one embodiment, a conductive pad 203 is fixedly attached to the bottom surface of the top plate 200, and a heat dissipation fin 401 is fixedly installed on the top of the top plate 200, with the heat dissipation fin 401 corresponding to the heat dissipation vent 201. The conductive pad 203 reduces gap leakage and ensures the conductive continuity between the top plate 200 and the main shell 100. During operation, the heat dissipation fin 401 can absorb and dissipate heat at the location of the heat dissipation vent 201.

[0040] As one embodiment, a mounting base 101 is fixedly installed on the outer side of the main shell 100, and the mounting base 101 is provided with screw holes. The mounting base 101 is a mounting component on the main shell 100 itself. When installing the shell, the external component can cooperate with the screw holes to achieve the installation and fixation of the shell.

[0041] In one embodiment, a cover plate 502 is movably mounted on the top of the wire channel 501, and a connecting plate 701, which is connected to the copper wire mesh cover 700, is movably mounted on the top of the partition 600. The cover plate 502 and the wire channel 501 are connected via a movable shaft, and the partition 600 and the connecting plate 701 are connected via a movable shaft. The cover plate 502 facilitates the opening of the wire channel 501, allowing for the cleaning or rearrangement of the conductive sealant inside. During maintenance or repair, the old sealant can be cleaned and refilled by opening and closing the cover plate 502. The copper wire mesh cover 700 can be mounted on top of the partition 600 or flipped up via the connecting plate 701, facilitating the handling of the circuit board inside the housing. During normal operation, the copper wire mesh cover 700 can be flipped down to enter a protective state.

[0042] In one embodiment, both the conductive foam 403 and the waveguide ventilation plate 402 are provided with corresponding honeycomb holes. The honeycomb holes on the conductive foam 403 and the waveguide ventilation plate 402 are arranged in an array. The aspect ratio of the honeycomb holes in the waveguide ventilation plate 402 is designed to allow air to pass through but to block electromagnetic waves. The conductive foam 403 and the waveguide ventilation plate 402 work together to achieve both air permeability and shielding.

[0043] Based on the different types of conductive particles in the conductive adhesive, conductive adhesives can be divided into silver-based conductive adhesives, gold-based conductive adhesives, copper-based conductive adhesives, and carbon-based conductive adhesives, etc., with silver-based conductive adhesives being the most widely used.

[0044] In specific implementation of this utility model:

[0045] S1. Personnel will install the wiring ports in the installation port 300. The connecting wires on the wire ends can enter the second installation cavity through the wire channel 501 to ensure that they can be connected to the circuit board in the installation cavity ear. The connecting wires in the wire channel 501 are filled and wrapped by the conductive putty layer 503. After the wiring is completed, the splicing slot 102 and the splicing block 202 are spliced ​​together and combined. The top plate 200 and the main shell 100 are then connected and fixed. The shell can be opened and closed by pushing the top plate 200 to the side.

[0046] S2. During maintenance or repair of the housing, personnel can clean and re-add the old putty by opening and closing the cover plate 502; the copper wire mesh cover 700 can be connected to the top of the partition plate 600 or flipped through the connecting plate 701, which facilitates personnel to handle the circuit boards inside the housing. During normal operation, the copper wire mesh cover 700 can be flipped down to enter the protective state.

[0047] S3. When the housing is dissipating heat, the honeycomb pores of the waveguide ventilation plate 402 are designed with an aspect ratio that allows only air to pass through, but blocks electromagnetic waves. The conductive foam 403 works in conjunction with the waveguide ventilation plate 402 to achieve a balance between air permeability and shielding.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vehicle-mounted controller housing for electromagnetic interference protection, characterized in that, include: The main shell (100) is fitted with a top plate (200) on its top. A heat dissipation vent (201) is provided on the top plate (200). A protective component (400) is fixedly installed on the heat dissipation vent (201). A partition (600) is fixedly installed inside the main shell (100). The main shell (100) is divided into two internal installation cavities, installation cavity one and installation cavity two, by the partition (600). The wire component (500) is assembled in the first mounting cavity and communicates with the second mounting cavity. The outer side of the main shell (100) is fixedly installed with a mounting port (300) corresponding to the wire component (500). A copper wire mesh cover (700) is assembled inside mounting cavity two; The protective component (400) includes a waveguide ventilation plate (402) and conductive foam (403). A heat dissipation vent (201) is provided on the top plate (200). The waveguide ventilation plate (402) is fixedly installed inside the heat dissipation vent (201). The conductive foam (403) is fixedly connected to the bottom of the waveguide ventilation plate (402). The wire component (500) includes a wire channel (501) and a conductive putty layer (503). The wire channel (501) is fixedly connected to the mounting cavity 1 and communicates with the mounting port (300) and the mounting cavity 2. The conductive putty layer (503) is installed inside the wire channel (501).

2. The vehicle-mounted controller housing for electromagnetic interference protection according to claim 1, characterized in that: The top of the main shell (100) is provided with a splicing groove (102), and the bottom of the top plate (200) is fixed with a splicing block (202) that is assembled with the splicing groove (102). The main shell (100) and the top plate (200) are provided with corresponding mounting holes.

3. The vehicle-mounted controller housing for electromagnetic interference protection according to claim 2, characterized in that: The bottom surface of the top plate (200) is fixedly connected with a conductive pad (203), and the top of the top plate (200) is fixedly installed with a heat dissipation fin (401), and the heat dissipation fin (401) corresponds to the heat dissipation port (201).

4. The vehicle-mounted controller housing for electromagnetic interference protection according to claim 3, characterized in that: A mounting base (101) is fixedly installed on the outer side of the main shell (100), and a screw hole is provided on the mounting base (101).

5. The vehicle-mounted controller housing for electromagnetic interference protection according to claim 4, characterized in that: A cover plate (502) is movably installed on the top of the wire channel (501), and a connecting plate (701) that is connected to the copper wire mesh cover (700) is movably installed on the top of the partition (600). The cover plate (502) and the wire channel (501) are connected by a movable shaft one, and the partition (600) and the connecting plate (701) are connected by a movable shaft two.

6. The vehicle-mounted controller housing for electromagnetic interference protection according to claim 5, characterized in that: Both the conductive foam (403) and the waveguide ventilation plate (402) are provided with corresponding honeycomb holes.

Images