Vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance

Abstract

The utility model discloses a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance, which comprises a ventilation outer cover installed on the outer side of vehicle-mounted EMC equipment, a ventilation labyrinth assembly arranged in the ventilation outer cover, an inlet baffle arranged on the ventilation outer cover, and an outlet baffle arranged on the ventilation outer cover. According to the vehicle-mounted EMC device, the ventilation labyrinth assembly is arranged in the ventilation outer cover, the path of external air flow entering the interior of the vehicle-mounted EMC device is prolonged, rainwater is blocked, the ventilation labyrinth assembly is arranged in the ventilation outer cover, the ventilation labyrinth assembly is arranged in the ventilation outer cover, the ventilation labyrinth assembly is arranged in the ventilation outer cover, and therefore the vehicle-mounted EMC device can be prevented from being damaged, and the vehicle-mounted EMC device can be prevented from being damaged. According to the vehicle-mounted EMC equipment, external dust is prevented from entering the vehicle-mounted EMC equipment, the vehicle-mounted EMC equipment is effectively protected, the electromagnetic shielding dustproof assembly is arranged at the air outlet of the ventilation outer cover, dust is prevented from entering the vehicle-mounted EMC equipment under the condition that ventilation is guaranteed, and the electromagnetic shielding performance of the vehicle-mounted EMC equipment under the ventilation condition is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted EMC equipment technology, specifically relating to a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance. Background Technology

[0002] Currently, the main ventilation method for vehicle-mounted EMC equipment is to open ventilation windows on the surface of the equipment for air exchange. When the working environment of the vehicle-mounted EMC equipment is outdoors, the conventional window opening method is affected by the external environment. The airflow entering the vehicle-mounted EMC equipment can easily carry a large amount of dust. When encountering rainy weather, rainwater may hit the ventilation windows on the surface of the vehicle-mounted EMC equipment from various directions. It is difficult to ensure that rainwater is blocked from entering the vehicle-mounted EMC equipment from multiple directions while the equipment is being properly ventilated. In addition, opening ventilation windows on the exterior of the vehicle-mounted EMC equipment also affects the electromagnetic shielding performance of the equipment, leading to a decrease in electromagnetic shielding performance. Therefore, we propose a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance. Utility Model Content

[0003] The purpose of this invention is to provide a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance, comprising,

[0005] A ventilation cover is installed on the outside of the vehicle-mounted EMC equipment;

[0006] A ventilation labyrinth assembly, wherein the ventilation labyrinth assembly is disposed within the ventilation enclosure;

[0007] An inlet baffle is disposed on the ventilation cover, and an air inlet communicating with the ventilation labyrinth assembly is formed between the inlet baffle and the ventilation cover.

[0008] An electromagnetic shielding dustproof component is provided, which is located on the ventilation cover at the position corresponding to the air outlet.

[0009] Preferably, the ventilated labyrinth assembly includes mounting side panels, V-shaped panels, and inclined panels;

[0010] Two mounting side plates are provided, and the two mounting side plates are respectively located at both ends of the inner side of the ventilation cover;

[0011] The mounting side plate is provided with inclined plate guide groove and V-shaped guide groove. The two ends of the inclined plate are respectively guided and inserted into the inclined plate guide grooves on the two mounting side plates, and the two ends of the V-shaped plate are respectively guided and inserted into the V-shaped guide grooves on the two mounting side plates.

[0012] Furthermore, extension blocks that abut against the V-shaped plate are provided at the lower ends of both ends of the inclined plate, forming a ventilation opening between the V-shaped plate and the inclined plate.

[0013] Preferably, the mounting side plate, the V-shaped plate, the inclined plate, and the extension block are all metal parts made of aluminum alloy, and the inclined plate and the extension block are integrally formed structures.

[0014] Preferably, the electromagnetic shielding dustproof assembly includes an air outlet baffle, a dustproof mesh, a metal honeycomb panel, and a pressure plate;

[0015] The dustproof net and the metal honeycomb panel are disposed between the air outlet baffle and the pressure plate.

[0016] Preferably, both the air outlet baffle and the pressure plate are metal frame plates with rectangular slots made of aluminum alloy.

[0017] Preferably, the dustproof net is made of aluminum and has a mesh count of 90-110.

[0018] Preferably, the metal honeycomb panel is a honeycomb panel with a hexagonal honeycomb core made of 304 stainless steel.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting a ventilation labyrinth component inside the ventilation cover, allows external airflow to enter the ventilation cover through the air inlet during use. The airflow then flows along the ventilation channel formed by the V-shaped plate and the inclined plate inside the ventilation cover. During this process, due to the setting of the inlet baffle and the ventilation labyrinth component, the external airflow can only flow along the designated ventilation channel, extending the path of the external airflow into the vehicle-mounted EMC equipment. It also blocks rainwater, preventing rainwater from hitting the surface of the vehicle-mounted EMC equipment from multiple directions, reducing the entry of external dust into the vehicle-mounted EMC equipment, effectively protecting the vehicle-mounted EMC equipment, and improving the waterproof performance of the vehicle-mounted EMC equipment during ventilation.

[0021] 2. This utility model sets an electromagnetic shielding dustproof component at the air outlet of the ventilation cover. When the airflow is discharged from the air outlet on the ventilation cover into the vehicle EMC equipment, the dustproof net on the electromagnetic shielding dustproof component can play a dustproof role. While ensuring ventilation, it blocks dust from entering the vehicle EMC equipment and improves the dustproof performance of the vehicle EMC equipment during ventilation. At the same time, the metal honeycomb panel effectively shields electromagnetic waves by using the principle of high pass and low resistance of shielded waveguides while ensuring efficient ventilation, thus improving the electromagnetic shielding performance of the vehicle EMC equipment during ventilation.

[0022] 3. In this utility model, the ventilation labyrinth component, the entrance baffle, and the electromagnetic shielding dustproof component are integrated and installed on the ventilation cover, reducing the volume of the vehicle-mounted EMC dustproof and waterproof ventilation device and facilitating installation, disassembly, and use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a side sectional view of the present invention.

[0026] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0027] Figure 5 This is an exploded three-dimensional structural diagram of the electromagnetic shielding and dustproof component of this utility model;

[0028] Figure 6 This is a three-dimensional structural diagram of the ventilation labyrinth component of this utility model;

[0029] Figure 7 This is a partially exploded three-dimensional structural diagram of the present invention;

[0030] Figure 8 This is a partially exploded three-dimensional structural diagram of the present invention.

[0031] In the diagram: 1. Ventilation hood; 2. Ventilation labyrinth assembly; 201. Mounting side panel; 202. V-shaped plate; 203. Inclined plate; 204. Inclined plate guide groove; 205. V-shaped guide groove; 206. Extension block; 207. Ventilation opening; 3. Inlet baffle; 4. Air inlet; 5. Electromagnetic shielding dustproof assembly; 501. Air outlet baffle; 502. Dustproof net; 503. Metal honeycomb panel; 504. Pressure plate; 6. Air outlet. 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] Please see Figures 1-8 The present invention provides a vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance, comprising:

[0034] Ventilation cover 1 is installed on the outside of the vehicle-mounted EMC equipment. The ventilation cover 1 can be fixed to the vehicle-mounted EMC equipment housing by bolts, which is convenient for installation and use.

[0035] Ventilation labyrinth assembly 2 is disposed inside ventilation cover 1. Ventilation labyrinth assembly 2 includes mounting side plates 201, V-shaped plates 202, and inclined plates 203. There are two mounting side plates 201, which are respectively disposed at the two inner ends of ventilation cover 1. The mounting side plates 201 are provided with inclined plate guide grooves 204 and V-shaped guide grooves 205. The two ends of the inclined plate 203 are respectively guided and inserted into the inclined plate guide grooves 204 on the two mounting side plates 201, and the two ends of the V-shaped plate 202 are respectively guided and inserted into the V-shaped guide grooves 205 on the two mounting side plates 201. The lower part of both ends of the inclined plate 203 is provided with extension blocks 206 that abut against the V-shaped plate 202. A ventilation opening 207 is formed between the V-shaped plate 202 and the inclined plate 203.

[0036] An inlet baffle 3 is installed on the ventilation cover 1. An air inlet 4 that communicates with the ventilation labyrinth assembly 2 is formed between the inlet baffle 3 and the ventilation cover 1. The inlet baffle 3 can prevent the V-shaped plate 202 from falling off, ensuring the normal use of the vehicle-mounted EMC dustproof and waterproof ventilation device.

[0037] The electromagnetic shielding dustproof component 5 is installed on the ventilation cover 1 at the position corresponding to the air outlet 6. The electromagnetic shielding dustproof component 5 includes an air outlet baffle 501, a dustproof net 502, a metal honeycomb panel 503, and a pressure plate 504. The dustproof net 502 and the metal honeycomb panel 503 are disposed between the air outlet baffle 501 and the pressure plate 504.

[0038] This utility model provides a ventilation labyrinth component 2 inside the ventilation cover 1 and an electromagnetic shielding dustproof component 5 at the air outlet 6 of the ventilation cover 1. In use, external airflow enters the ventilation cover 1 through the air inlet 4 and flows along the ventilation channel formed by the V-shaped plate 202 and the inclined plate 203 inside the ventilation cover 1. During this process, due to the setting of the inlet baffle 3 and the ventilation labyrinth component 2, the external airflow can only flow along the designated ventilation channel, which prolongs the path of the external airflow into the vehicle EMC equipment and forms a barrier against rainwater, preventing rainwater from hitting the surface of the vehicle EMC equipment from multiple directions, reducing the entry of external dust into the vehicle EMC equipment, effectively protecting the vehicle EMC equipment, and improving the waterproof performance of the vehicle EMC equipment during ventilation.

[0039] When airflow is exhausted from the air outlet 6 on the ventilation cover 1 into the vehicle-mounted EMC equipment, the dustproof mesh 502 on the electromagnetic shielding dustproof component 5 can play a dustproof role, blocking dust from entering the vehicle-mounted EMC equipment while ensuring ventilation, thus improving the dustproof performance of the vehicle-mounted EMC equipment during ventilation. At the same time, the metal honeycomb panel 503, while ensuring efficient ventilation, effectively shields electromagnetic waves by utilizing the principle of high-pass and low-resistance shielding waveguides, thereby improving the electromagnetic shielding performance of the vehicle-mounted EMC equipment during ventilation.

[0040] In this utility model, the ventilation labyrinth component 2, the entrance baffle 3, and the electromagnetic shielding dustproof component 5 are integrated and installed on the ventilation cover 1, reducing the volume of the vehicle-mounted EMC dustproof and waterproof ventilation device and facilitating installation, disassembly, and use.

[0041] In this embodiment, as Figure 3 , Figure 4 , Figures 6-8 As shown, the mounting side plate 201, V-shaped plate 202, inclined plate 203 and extension block 206 are all metal parts made of aluminum alloy, and the inclined plate 203 and extension block 206 are integrally formed structures; reducing the weight of the vehicle EMC dustproof and waterproof ventilation device and achieving lightweight design.

[0042] In this embodiment, as Figure 5 As shown, the air outlet baffle 501 and the pressure plate 504 are both metal frame plates with rectangular slots made of aluminum alloy; this reduces the weight of the vehicle EMC dustproof and waterproof ventilation device and achieves a lightweight design.

[0043] In this embodiment, as Figure 5 As shown, the dustproof net 502 is made of aluminum and has a mesh count of 90-110, which meets the requirements for industrial use. Different mesh counts of dustproof nets can be replaced according to the actual use environment.

[0044] In this embodiment, as Figure 5As shown, the metal honeycomb panel 503 is a honeycomb panel with a hexagonal honeycomb core made of 304 stainless steel. While ensuring efficient ventilation, it effectively shields electromagnetic waves and improves the electromagnetic shielding performance of vehicle-mounted EMC equipment under ventilation conditions. Different specifications of metal honeycomb panels can be replaced according to actual usage requirements.

[0045] In summary, the method of using the vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance provided in this embodiment is as follows: During use, external airflow enters the ventilation cover 1 through the air inlet 4 and flows along the ventilation channel formed by the V-shaped plate 202 and the inclined plate 203 within the ventilation cover 1. During this process, due to the setting of the inlet baffle 3 and the ventilation labyrinth component 2, the external airflow can only flow along the designated ventilation channel, extending the path of the external airflow into the vehicle-mounted EMC equipment and blocking rainwater, preventing rainwater from hitting the surface of the vehicle-mounted EMC equipment from multiple directions, and reducing the entry of external dust into the vehicle-mounted EMC equipment. When the airflow is discharged from the air outlet 6 on the ventilation cover 1 into the vehicle-mounted EMC equipment, the dustproof net 502 on the electromagnetic shielding dustproof component 5 can play a dustproof role, blocking dust from entering the vehicle-mounted EMC equipment while ensuring ventilation, thus improving the dustproof performance of the vehicle-mounted EMC equipment during ventilation. At the same time, the metal honeycomb plate 503 effectively shields electromagnetic waves by utilizing the principle of high-pass and low-resistance shielding waveguides while ensuring efficient ventilation.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance, characterized in that, include, Ventilation cover (1), the ventilation cover (1) is installed on the outside of the vehicle-mounted EMC equipment; Ventilation labyrinth assembly (2), the ventilation labyrinth assembly (2) being disposed within the ventilation cover (1); An inlet baffle (3) is provided on the ventilation cover (1), and an air inlet (4) communicating with the ventilation labyrinth assembly (2) is formed between the inlet baffle (3) and the ventilation cover (1). Electromagnetic shielding dustproof component (5) is installed on the ventilation cover (1) at the position corresponding to the air outlet (6).

2. The vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 1, characterized in that: The ventilation labyrinth assembly (2) includes a mounting side plate (201), a V-shaped plate (202), and an inclined plate (203); There are two mounting side plates (201), and the two mounting side plates (201) are respectively located at the inner ends of the ventilation cover (1); The mounting side plate (201) is provided with an inclined plate guide groove (204) and a V-shaped guide groove (205). The two ends of the inclined plate (203) are respectively guided and inserted into the inclined plate guide groove (204) on the two mounting side plates (201), and the two ends of the V-shaped plate (202) are respectively guided and inserted into the V-shaped guide groove (205) on the two mounting side plates (201). Furthermore, the lower ends of the inclined plate (203) are provided with extension blocks (206) that abut against the V-shaped plate (202), and a ventilation opening (207) is formed between the V-shaped plate (202) and the inclined plate (203).

3. The vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 2, characterized in that: The mounting side plate (201), the V-shaped plate (202), the inclined plate (203) and the extension block (206) are all metal parts made of aluminum alloy, and the inclined plate (203) and the extension block (206) are integrally formed structures.

4. The vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 1, characterized in that: The electromagnetic shielding dustproof component (5) includes an air outlet baffle (501), a dustproof net (502), a metal honeycomb panel (503), and a pressure plate (504). The dustproof net (502) and the metal honeycomb panel (503) are disposed between the air outlet baffle (501) and the pressure plate (504).

5. A vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 4, characterized in that: Both the air outlet baffle (501) and the pressure plate (504) are metal frame plates with rectangular slots made of aluminum alloy.

6. A vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 4, characterized in that: The dustproof net (502) is made of aluminum and has a mesh size of 90-110.

7. A vehicle-mounted EMC dustproof and waterproof ventilation device with electromagnetic shielding performance according to claim 4, characterized in that: The metal honeycomb panel (503) is a honeycomb panel with a hexagonal honeycomb core made of 304 stainless steel.

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