Circuit board for automobile sensor

Abstract

The utility model discloses a circuit board for an automobile sensor, and the circuit board comprises a fixed plate and a housing which is disposed at one side of the fixed plate. The four groups of mounting pieces are respectively arranged at four corners of the back wall of the fixed plate; the circuit board body is arranged in the shell; the plurality of groups of heat dissipation through holes are formed in the fixing plate; the filtering assembly is used for conducting dustproof filtering on the multiple sets of heat dissipation through holes and is arranged on the fixing plate; by arranging the filtering assembly, dustproof filtering can be carried out on the multiple sets of heat dissipation holes, external dust is prevented from entering the interior of the shell through the multiple sets of heat dissipation holes, and the situation that the external dust easily enters the interior of the circuit board fixing shell through the multiple sets of heat dissipation hole grooves due to the fact that dustproof operation cannot be carried out at the heat dissipation hole grooves is avoided. Therefore, the problem that the heat dissipation effect of the circuit board body is affected is solved, and the heat dissipation effect of the circuit board body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sensors, in particular to a circuit board for automobile sensors. Background Art

[0002] As we all know, automotive sensors are input devices for automotive computer systems. They convert various operating conditions information during vehicle operation, such as vehicle speed, temperature of various media, engine operating conditions, etc., into electrical signals and transmit them to the computer so that the engine is in the best working condition.

[0003] The existing Chinese patent with the patent announcement number "CN212381463U" discloses "a circuit board assembly for a circuit board for an automotive sensor". The circuit board fixing shell and cover plate are set to facilitate the protection of the circuit board body, with high safety performance, convenient opening, closing, removal and installation, and reasonable design. The fixing buckle set on the top of the cover plate is convenient for disassembly and assembly, and the transparent observation plate set in the middle of the cover plate is convenient for observation. The sensor connection port electrically connected at the right end of the circuit board body and the through hole set at the right end of the circuit board fixing shell are convenient for connection, plugging and fixing, and are easy to use; the EVA pads bonded at the front and rear end corners of the circuit board body are used for buffering and shock absorption, stability and reliability, and protection from impact, thereby improving the vibration and impact resistance of the circuit board; the insulating rubber sleeve sleeved on the outside of the circuit board body is insulated and anti-static; the cooling fan group set in the middle of the rear end of the circuit board fixing shell and the cooling holes set at both ends thereof can effectively dissipate heat and extend the service life of the circuit board.

[0004] However, the heat dissipation holes in the above-mentioned patent cannot be dust-proofed, resulting in external dust easily entering the interior of the circuit board fixed housing through multiple sets of heat dissipation holes, thereby affecting the heat dissipation effect of the circuit board body. Therefore, we propose a circuit board for automotive sensors to solve the above-mentioned problem. Utility Model Content

[0005] The purpose of the present utility model is to provide a circuit board for an automobile sensor to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A circuit board for an automobile sensor, comprising:

[0008] A fixing plate and a shell, wherein the shell is arranged on one side of the fixing plate;

[0009] Four sets of mounting parts are respectively arranged at the four corners of the back wall of the fixing plate;

[0010] A circuit board body, which is arranged inside the housing;

[0011] A plurality of heat dissipation holes are provided on the fixed plate;

[0012] The filter assembly is used for dust-proof filtering of multiple groups of heat dissipation through holes and is arranged on a fixed plate.

[0013] As a further solution of the present invention: the filter assembly includes two groups of filter screens, the two groups of filter screens are arranged on one side of multiple groups of heat dissipation holes, and are arranged on the back wall of the fixed plate, the upper and lower ends of the two groups of filter screens are provided with two groups of plug-in blocks, multiple groups of plug-in blocks are provided with a group of plug-in parts, the other ends of multiple groups of plug-in parts are provided with four groups of connecting plates, two groups of connecting rods are provided between the four groups of connecting plates, two groups of first hinges are provided on the side walls of the two groups of connecting rods, multiple groups of first hinges are provided on each of the multiple groups, and the other ends of multiple groups of connecting rods are provided with a group of second hinges, multiple groups of second hinges are respectively provided on the side walls of the two groups of driving rods, and multiple groups of extrusion springs are provided between the two groups of driving rods.

[0014] As a further solution of the present invention: a guide rod is slidably arranged between the two groups of driving rods, and a group of limit blocks are arranged at both ends of the guide rod, and the two groups of limit blocks are arranged on the back wall of the fixed plate.

[0015] As a further solution of the present invention: a group of handles are provided on each of the two groups of driving rods.

[0016] As a further solution of the present invention: a cooling fan is provided between the plurality of groups of the cooling through holes, and the cooling fan is provided on the fixing plate and inside the housing.

[0017] As a further solution of the present invention: a group of positioning plates are provided on both side walls of the shell, a group of positioning blocks are provided at both ends of the two groups of positioning plates, a group of positioning bolts are provided on multiple groups of positioning blocks, and multiple groups of positioning bolts are arranged in multiple groups of positioning holes on the fixed plate.

[0018] As a further solution of the present invention: a visual window is provided on the shell.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The circuit board for the automotive sensor is capable of performing dust-proof filtering on multiple groups of heat dissipation through holes by providing a filter assembly, thereby preventing external dust from entering the interior of the housing through the multiple groups of heat dissipation through holes. This avoids the problem that dust cannot be prevented from entering the interior of the circuit board fixed housing through the multiple groups of heat dissipation through holes, thereby affecting the heat dissipation effect of the circuit board body. The heat dissipation effect of the circuit board body is thereby improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 It is a structural schematic diagram of the back side of the utility model.

[0023] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure.

[0024] Figure 4 This is a schematic structural diagram of the circuit board body in the utility model.

[0025] Among them: 1. Fixing plate; 2. Shell; 3. Mounting part; 4. Circuit board body; 5. Heat dissipation hole; 6. Filter; 7. Plug-in block; 8. Plug-in part; 9. Connecting plate; 10. Connecting rod; 11. First hinge; 12. Connecting rod; 13. Second hinge; 14. Driving rod; 15. Extrusion spring; 16. Guide rod; 17. Limit block; 18. Handle; 19. Cooling fan; 20. Positioning plate; 21. Positioning block; 22. Positioning bolt; 23. Visual window. DETAILED DESCRIPTION

[0026] In one embodiment, Figure 1-Figure 4 As shown, a circuit board for an automobile sensor includes:

[0027] The fixing plate 1 and the shell 2 are arranged on one side of the fixing plate 1;

[0028] Four sets of mounting members 3, which are respectively arranged at the four corners of the back wall of the fixing plate 1;

[0029] The circuit board body 4 is arranged inside the housing 2;

[0030] Multiple groups of heat dissipation holes 5 are provided on the fixing plate 1;

[0031] A filter assembly, which is used to filter the multiple groups of heat dissipation holes 5 to prevent dust and is arranged on the fixed plate 1;

[0032] The filter assembly includes two groups of filter screens 6, which are arranged on one side of the multiple groups of heat dissipation holes 5 and on the back wall of the fixed plate 1. Two groups of plug-in blocks 7 are provided at the upper and lower ends of the two groups of filter screens 6. A group of plug-in parts 8 are provided on the multiple groups of plug-in blocks 7. Four groups of connecting plates 9 are provided at the other end of the multiple groups of plug-in parts 8. Two groups of connecting rods 10 are provided between the four groups of connecting plates 9. Two groups of first hinges 11 are provided on the side walls of the two groups of connecting rods 10. A group of connecting rods 12 are provided on the multiple groups of first hinges 11. The other ends of the multiple groups of connecting rods 12 are provided with a group of second hinges 13. The multiple groups of second hinges 13 are respectively provided on the side walls of the two groups of drive rods 14. Multiple groups of extrusion springs 15 are provided between the two groups of drive rods 14.

[0033] Specifically, when in use, the circuit board body 4 can be protected by the fixing plate 1 and the shell 2, and the heat inside the shell 2 can be dissipated through the heat dissipation holes 5 and the heat dissipation fan 19. The multiple sets of heat dissipation holes 5 can filter dust through the filter 6 while dissipating heat. When the filter 6 needs to be disassembled and replaced, the two sets of handles 18 are toggled, and the two sets of handles 18 drive the two sets of drive rods 14 to move. The two sets of drive rods 14 stretch the multiple sets of extrusion springs 15. At the same time, the two sets of connecting rods 10 are driven to move through the second hinge 13, the connecting rod 12 and the first hinge 11. The two sets of connecting rods 10 drive the multiple sets of connectors 8 to move through the connecting plate 9. The connector 8 is disengaged from the plug-in block 7, so that the filter 6 can be disassembled and replaced. When the filter 6 needs to be installed, the operation is reversed, so that the multiple groups of extrusion springs 15 drive the multiple groups of connectors 8 to reset, so that the filter 6 can be installed and fixed; by setting up a filter assembly, the multiple groups of heat dissipation holes 5 can be dust-proof filtered to prevent external dust from entering the interior of the shell 2 through the multiple groups of heat dissipation holes 5, and avoid the inability to perform dust-proof operation at the heat dissipation hole groove, which causes external dust to easily enter the interior of the circuit board fixed shell through the multiple groups of heat dissipation hole grooves, thereby affecting the heat dissipation effect of the circuit board body 4, thereby improving the heat dissipation effect of the circuit board body 4.

[0034] like Figure 1-Figure 4 As shown, a guide rod 16 is slidably disposed between the two sets of drive rods 14. A set of stoppers 17 is disposed at each end of the guide rod 16. Both sets of stoppers 17 are located on the back wall of the fixed plate 1. The guide rods 16 guide the movement of the drive rods 14, while the stoppers 17 support the drive rods 14. A handle 18 is provided on each set of drive rods 14 to facilitate movement of the drive rods 14. A cooling fan 19 is disposed between the multiple sets of heat dissipation holes 5. The cooling fan 19 is disposed on the fixed plate 1 and within the housing 2. The cooling fan 19 dissipates heat from the circuit board body 4 within the housing 2.

[0035] like Figure 1-Figure 2 As shown, a set of positioning plates 20 are provided on both side walls of the housing 2. A set of positioning blocks 21 are provided at both ends of the two sets of positioning plates 20. Each set of positioning blocks 21 is provided with a set of positioning bolts 22, which are each installed in a plurality of positioning holes on the fixing plate 1. The positioning plates 20, positioning blocks 21, and positioning bolts 22 facilitate disassembly of the housing 2. A viewing window 23 is provided on the housing 2 to facilitate observation of the circuit board body 4.

[0036] The above embodiment discloses a circuit board for an automotive sensor. When in use, the circuit board body 4 can be protected by the fixing plate 1 and the housing 2. At the same time, the heat inside the housing 2 is dissipated through the heat dissipation holes 5 and the heat dissipation fan 19. The multiple sets of heat dissipation holes 5 can filter dust through the filter 6 while dissipating heat. When the filter 6 needs to be removed and replaced, the two sets of handles 18 are toggled. The two sets of handles 18 drive the two sets of drive rods 14 to move. The two sets of drive rods 14 stretch the multiple sets of extrusion springs 15. At the same time, the second hinge 13, the connecting rod 12 and the first hinge 11 drive the two sets of connecting rods 10 to move. The two sets of connecting rods 10 drive the multiple sets of plug-in components 8 to move through the connecting plate 9, so that the plug-in components 8 are disengaged from the plug-in block 7, thereby enabling the filter 6 to be removed and replaced. When the filter 6 needs to be installed, the operation is reversed, so that the multiple sets of extrusion springs 15 drive the multiple sets of plug-in components 8 to reset, thereby enabling the filter 6 to be installed and fixed, which is relatively convenient.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board for an automotive sensor, characterized in that: include: A fixed plate (1) and a shell (2), wherein the shell (2) is arranged on one side of the fixed plate (1); Four sets of mounting parts (3), which are respectively arranged at the four corners of the back wall of the fixing plate (1); A circuit board body (4) is arranged inside the housing (2); A plurality of groups of heat dissipation through holes (5) are provided on the fixing plate (1); A filter assembly is used for dust-proof filtering of multiple groups of heat dissipation through holes (5) and is arranged on a fixing plate (1).

2. A circuit board for an automotive sensor according to claim 1, characterized in that: The filter assembly comprises two groups of filter screens (6), the two groups of filter screens (6) are arranged on one side of the multiple groups of heat dissipation holes (5) and on the back wall of the fixed plate (1), the upper and lower ends of the two groups of filter screens (6) are provided with two groups of plug-in blocks (7), the multiple groups of plug-in blocks (7) are provided with a group of plug-in components (8), the other ends of the multiple groups of plug-in components (8) are provided with four groups of connecting plates (9), two groups of connecting rods (10) are provided between the four groups of connecting plates (9), the side walls of the two groups of connecting rods (10) are provided with two groups of first hinges (11), the multiple groups of first hinges (11) are provided with a group of connecting rods (12), the other ends of the multiple groups of connecting rods (12) are provided with a group of second hinges (13), the multiple groups of second hinges (13) are respectively provided on the side walls of the two groups of driving rods (14), and multiple groups of extrusion springs (15) are provided between the two groups of driving rods (14).

3. A circuit board for an automobile sensor according to claim 2, characterized in that: A guide rod (16) is slidably arranged between the two groups of driving rods (14), and a group of limit blocks (17) are arranged at both ends of the guide rod (16). The two groups of limit blocks (17) are both arranged on the back wall of the fixed plate (1).

4. The circuit board for automobile sensors according to claim 2, characterized in that: A set of handles (18) are provided on each of the two sets of driving rods (14).

5. The circuit board for automobile sensors according to claim 1, characterized in that: A heat dissipation fan (19) is provided between the plurality of groups of heat dissipation through holes (5), and the heat dissipation fan (19) is provided on the fixing plate (1) and inside the housing (2).

6. The circuit board for automobile sensors according to claim 1, characterized in that: A group of positioning plates (20) are provided on both side walls of the shell (2), a group of positioning blocks (21) are provided at both ends of the two groups of positioning plates (20), a group of positioning bolts (22) are provided on the multiple groups of positioning blocks (21), and the multiple groups of positioning bolts (22) are arranged in the multiple groups of positioning holes on the fixing plate (1).

7. The circuit board for automobile sensors according to claim 1, characterized in that: A visual window (23) is provided on the housing (2).

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