An anti-interference circuit board

Abstract

This utility model relates to the field of circuit board technology, specifically an anti-interference circuit board, including a protective cover with a protective cap snapped onto its top. Inside the protective cover is a circuit board body. Four positioning posts are fixedly connected inside the protective cover, and shock-absorbing sleeves are fitted around the positioning posts. Four connecting sleeves, each corresponding to a positioning post, are fixedly connected to the protective cap. A stop block is threaded onto each positioning post, and the bottom end of the stop block abuts against the connecting sleeve. A stop sleeve is fixedly connected to the bottom end of each connecting sleeve, and a shock-absorbing pad is located at the bottom end of the stop sleeve. The top side of the shock-absorbing pad abuts against the stop sleeve, and the bottom side of the shock-absorbing pad abuts against the circuit board body. A temperature sensor is installed on the circuit board body. When the equipment vibrates, it can provide shock absorption and protection for the circuit board, thereby reducing mechanical interference and electromagnetic interference, and improving the stability of the circuit board.

Description

Technical Field

[0001] This utility model relates to a circuit board, specifically an anti-interference circuit board, belonging to the field of circuit board technology. Background Technology

[0002] The core function of a circuit board (PCB) is to support and connect electronic components, realize electrical connections and mechanical fixation, and provide signal transmission, insulation protection and integration support. It is an indispensable basic component in electronic equipment and directly affects the performance and reliability of the equipment.

[0003] However, since circuit boards are generally rigidly fixed with bolts, they come into direct contact with the equipment after installation. Therefore, when the equipment is impacted and vibrates, the circuit board will also be greatly disturbed, which can easily damage the circuit board. In addition, after the circuit board is installed, the electronic components are exposed to the external environment over a large area, making it susceptible to electromagnetic interference, which can affect the stability of the circuit board during use. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference circuit board to solve the above problems. When the equipment vibrates, the circuit board can play a shock-absorbing and protective role, thereby reducing the mechanical interference on the circuit board and reducing the intensity of electromagnetic interference on the circuit board, thus improving the stability of the circuit board in use.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an anti-interference circuit board includes a protective cover, a protective cap engaged at the top of the protective cover, a circuit board body disposed inside the protective cover, and an installation structure provided on the protective cover. The installation structure includes positioning posts and abutments. Four positioning posts are fixedly connected inside the protective cover, and the four positioning posts penetrate the same circuit board body. Shock-absorbing sleeves are fitted around the outside of the positioning posts, and the outer side of the shock-absorbing sleeves is in contact with the circuit board body. Four connecting sleeves corresponding to the positioning posts are fixedly connected on the protective cap. Abutments are threaded onto the positioning posts, and the bottom end of the abutments abuts against the connecting sleeves. Abutments are fixedly connected to the bottom end of the connecting sleeves. A shock-absorbing pad is provided at the bottom end of the abutment, and the top side of the shock-absorbing pad abuts against the abutment. The bottom side of the shock-absorbing pad abuts against the circuit board body. A temperature sensor is installed on the circuit board body.

[0006] Preferably, the top of the positioning column cross-section has a trapezoidal structure, and the abutment block has a groove with a hexagonal cross-section.

[0007] Preferably, the protective cover and protective cap are made of aluminum metal that is resistant to electromagnetic interference, and the shock-absorbing sleeve and shock-absorbing pad are made of elastic rubber material.

[0008] Preferably, two fans are installed at one end of the protective cover, and a filter structure is provided at the other end of the protective cover.

[0009] Preferably, the filter structure includes an air inlet pipe and a fixing sleeve. Two air inlet pipes are fixedly connected to the protective cover. The fixing sleeve is threadedly connected to the air inlet pipe, and a filter screen is abutted between the fixing sleeve and the air inlet pipe.

[0010] Preferably, the air intake pipe is provided with a placement groove, and the filter screen is engaged with the placement groove.

[0011] Preferably, the protective cover is provided with a fixing structure, the fixing structure including a sliding plate and a first sponge strip, the sliding plate is slidably connected to the protective cover, the first sponge strip is fixedly connected to the bottom side of the sliding plate, and the second sponge strip is fixedly connected to the protective cover.

[0012] Preferably, the protective cover is fixedly connected to two connecting seats, and the slide plate is fixedly connected to two screws. The screws pass through the adjacent connecting seats and are threaded with nuts.

[0013] The beneficial effects of this utility model are as follows: During use, the circuit board body is located inside the protective cover and protective cap. Since the protective cover and protective cap are both made of anti-electromagnetic interference aluminum, they can reduce the interference of external electromagnetic waves on the circuit board body, thereby improving the stability of the circuit board body. At the same time, after the circuit board body is fixed, there is a shock-absorbing sleeve between it and the positioning post, and a shock-absorbing pad between it and the abutment. Therefore, when the equipment vibrates, the shock-absorbing sleeve and shock-absorbing pad can play a shock-absorbing and protective role for the circuit board body, thereby effectively reducing the interference of mechanical vibration on the circuit board body. When the circuit board body is damaged and needs to be disassembled for repair, multiple abutments can be unscrewed from multiple positioning posts using an Allen wrench, and then the protective cap can be moved so that it does not block the circuit board body. Finally, the circuit board body can be taken out from inside the protective cover, thus realizing the disassembly of the circuit board body and facilitating the repair and maintenance of the circuit board body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the protective cover and the fan of this utility model;

[0016] Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A.

[0017] Figure 4 This is a schematic diagram of the connection structure between the circuit board body and the temperature sensor of this utility model.

[0018] Figure 5 for Figure 4 The diagram shows an enlarged view of section B.

[0019] In the diagram: 1. Protective cover; 2. Protective cap; 3. Mounting structure; 301. Positioning post; 302. Abutment block; 303. Groove; 304. Connecting sleeve; 305. Abutment sleeve; 306. Shock-absorbing sleeve; 307. Shock-absorbing pad; 4. Circuit board body; 5. Fixing structure; 501. Slide plate; 502. First sponge strip; 503. Second sponge strip; 504. Connecting seat; 505. Screw; 506. Nut; 6. Filtering structure; 601. Air inlet pipe; 602. Fixing sleeve; 603. Filter screen; 604. Placement slot; 7. Fan; 8. Temperature sensor. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 As shown, an anti-interference circuit board includes a protective cover 1, with a protective cover 2 snapped onto the top of the protective cover 1. A circuit board body 4 is disposed inside the protective cover 1. A mounting structure 3 is provided on the protective cover 1, the mounting structure 3 including positioning posts 301 and abutments 302. Four positioning posts 301 are fixedly connected inside the protective cover 1, and the four positioning posts 301 penetrate the same circuit board body 4. A shock-absorbing sleeve 306 is fitted around the outside of each positioning post 301, and the outer side of the shock-absorbing sleeve 306 is in contact with the circuit board body 4. The protective cover 2 is fixedly connected with four connecting sleeves 304 corresponding one-to-one with the positioning post 301. The positioning post 301 is threadedly connected with a stop block 302. The bottom end of the stop block 302 abuts against the connecting sleeve 304. The bottom end of the connecting sleeve 304 is fixedly connected with a stop sleeve 305. The bottom end of the stop sleeve 305 is provided with a shock-absorbing pad 307. The top side of the shock-absorbing pad 307 abuts against the stop sleeve 305. The bottom side of the shock-absorbing pad 307 abuts against the circuit board body 4. The circuit board body 4 is equipped with a temperature sensor 8.

[0022] As a technical optimization of this utility model, the top of the cross-section of the positioning post 301 is trapezoidal, so it can play a role in guiding the movement when the abutment block 302 is fitted on the positioning post 301. The abutment block 302 is provided with a groove 303 with a hexagonal cross-section, so it is convenient to insert an Allen wrench into the groove 303 to rotate the abutment block 302.

[0023] As a technical optimization of this utility model, the protective cover 1 and the protective cover 2 are both made of aluminum metal that is resistant to electromagnetic interference, and the shock-absorbing sleeve 306 and the shock-absorbing pad 307 are both made of elastic rubber material, thus reducing the electromagnetic interference on the circuit board body 4.

[0024] As a technical optimization of this utility model, two fans 7 are installed at one end of the protective cover 1. The fans 7 can accelerate the airflow speed on the surface of the circuit board body 4, thereby accelerating the heat dissipation of the circuit board body 4 and preventing the circuit board body 4 from being damaged due to excessive temperature. The other end of the protective cover 1 is provided with a filter structure 6.

[0025] As a technical optimization of this utility model, the filter structure 6 includes an air inlet pipe 601 and a fixing sleeve 602. Two air inlet pipes 601 are fixedly connected to the protective cover 1. The fixing sleeve 602 is threaded onto the air inlet pipe 601. The filter screen 603 can be fixed by the fixing sleeve 602. The filter screen 603 abuts against the fixing sleeve 602 and the air inlet pipe 601. During the heat dissipation process, the filter screen 603 can filter the dust entering the interior of the protective cover 1, thereby preventing dust from adhering to the surface of the circuit board body 4 and causing adverse effects on the circuit board body 4.

[0026] As a technical optimization of this utility model, the air intake pipe 601 is provided with a placement groove 604, through which the filter screen 603 can be positioned, and the filter screen 603 is engaged with the placement groove 604.

[0027] As a technical optimization of this utility model, the protective cover 1 is provided with a fixing structure 5, which includes a sliding plate 501 and a first sponge strip 502. The sliding plate 501 is slidably connected to the protective cover 1, and the first sponge strip 502 is fixedly connected to the bottom side of the sliding plate 501. The second sponge strip 503 is fixedly connected to the protective cover 1. Since the first sponge strip 502 and the second sponge strip 503 are both made of elastic material, they can not only fix the wires but also seal the wire insertion opening, thereby improving the protection effect of the circuit board body 4.

[0028] As a technical optimization of this utility model, two connecting seats 504 are fixedly connected to the protective cover 1, and two screws 505 are fixedly connected to the slide plate 501. The screws 505 pass through the adjacent connecting seats 504, and nuts 506 are threadedly connected to the screws 505. Therefore, the sliding plate 501 can be prevented from resetting under the elastic action of the first sponge strip 502 and the second sponge strip 503 by the contact between the nut 506 and the connecting seat 504.

[0029] In use, the circuit board body 4 is located inside the protective cover 1 and the protective cap 2. Since both the protective cover 1 and the protective cap 2 are made of anti-electromagnetic interference aluminum, they can reduce the interference of external electromagnetic waves on the circuit board body 4, thereby improving the stability of the circuit board body 4. Simultaneously, after the circuit board body 4 is fixed, a shock-absorbing sleeve 306 is provided between it and the positioning post 301, and a shock-absorbing pad 307 is provided between it and the abutment 305. Since both the shock-absorbing pad 307 and the shock-absorbing sleeve 306 are made of elastic rubber, they can effectively absorb and buffer vibrations. Therefore, when the equipment vibrates, the shock-absorbing sleeve 306 and the shock-absorbing pad 307 can provide shock absorption and protection for the circuit board body 4. This effectively reduces the interference from mechanical vibration on the circuit board body 4. The wires connecting the circuit board body 4 can pass through one side of the protective cover 1. After the wires pass through, they can push the slide plate 501 towards the wires. The movement of the slide plate 501 will cause the first sponge strip 502 to move towards the second sponge strip 503. Since the sponge is an elastic material, the parts of the first sponge strip 502 and the second sponge strip 503 that contact the wires will be concave and deformed, and the remaining parts will abut against each other, thereby achieving a seal on the protective cover 1. To prevent the slide plate 501 from returning to its original position due to the elasticity of the sponge after it is released, the nut 506 can be rotated. When the nut 506 abuts against the connecting seat 504, the slide plate 501 can be released. At this time, the slide plate 501... The circuit board body 4 is immovable, thus securing the wires and sealing the protective cover 1, effectively improving the protection of the circuit board body 4. Temperature sensor 8 monitors the temperature around the circuit board body 4. When a high temperature is detected, two fans 7 are activated. Under the action of the fans 7, external air enters the protective cover 1 through the air inlet pipe 601, flows inside the cover 1, and finally exits from one end of the fans 7. During this airflow, the heat around the circuit board body 4 is carried away, preventing damage due to overheating and effectively improving safety. Furthermore, the air passes through filter 603 during its entry into the protective cover 1. The filter screen 603 filters particulate dust, thus preventing it from entering the interior of the protective cover 1 during heat dissipation and adhering to the surface of the circuit board body 4, which would have a negative impact on the circuit board body 4. The filter screen 603 can be disassembled and cleaned by unscrewing the fixing sleeve 602 from the air inlet pipe 601, thus ensuring the filtering effect. When the circuit board body 4 is damaged and needs to be disassembled for repair, multiple blocks 302 can be unscrewed from multiple positioning posts 301 using an Allen wrench. Then, the protective cover 2 can be moved so that it does not block the circuit board body 4. Finally, the circuit board body 4 can be removed from the interior of the protective cover 1, thus realizing the disassembly of the circuit board body 4 and facilitating the inspection and maintenance of the circuit board body 4.

[0030] 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.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and 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. An anti-interference circuit board, comprising a protective cover (1), characterized in that: The protective cover (1) has a protective cap (2) fitted at its top. The protective cover (1) contains a circuit board body (4). The protective cover (1) has a mounting structure (3), which includes positioning posts (301) and abutments (302). Four positioning posts (301) are fixedly connected inside the protective cover (1), and these four positioning posts (301) penetrate the same circuit board body (4). A shock-absorbing sleeve (306) is fitted around the positioning posts (301), and the outer side of the shock-absorbing sleeve (306) is in contact with the circuit board body (4). The protective cap (2) has... Four connecting sleeves (304) are fixedly connected to the positioning post (301). A stop block (302) is threadedly connected to the positioning post (301). The bottom end of the stop block (302) abuts against the connecting sleeve (304). A stop sleeve (305) is fixedly connected to the bottom end of the connecting sleeve (304). A shock-absorbing pad (307) is provided at the bottom end of the stop sleeve (305). The top side of the shock-absorbing pad (307) abuts against the stop sleeve (305). The bottom side of the shock-absorbing pad (307) abuts against the circuit board body (4). A temperature sensor (8) is installed on the circuit board body (4).

2. The anti-interference circuit board according to claim 1, characterized in that: The top of the positioning post (301) has a trapezoidal structure, and the abutment (302) has a hexagonal groove (303).

3. The anti-interference circuit board according to claim 1, characterized in that: The protective cover (1) and the protective cap (2) are both made of aluminum metal that is resistant to electromagnetic interference, and the shock-absorbing sleeve (306) and the shock-absorbing pad (307) are both made of elastic rubber material.

4. The anti-interference circuit board according to claim 1, characterized in that: Two fans (7) are installed at one end of the protective cover (1), and a filter structure (6) is provided at the other end of the protective cover (1).

5. An anti-interference circuit board according to claim 4, characterized in that: The filter structure (6) includes an air inlet pipe (601) and a fixing sleeve (602). Two air inlet pipes (601) are fixedly connected to the protective cover (1). The fixing sleeve (602) is threadedly connected to the air inlet pipe (601). A filter screen (603) is in contact between the fixing sleeve (602) and the air inlet pipe (601).

6. An anti-interference circuit board according to claim 5, characterized in that: The air intake pipe (601) is provided with a placement groove (604), and the filter screen (603) is engaged with the placement groove (604).

7. An anti-interference circuit board according to claim 1, characterized in that: The protective cover (1) is provided with a fixing structure (5), the fixing structure (5) includes a sliding plate (501) and a first sponge strip (502). The sliding plate (501) is slidably connected to the protective cover (1), the first sponge strip (502) is fixedly connected to the bottom side of the sliding plate (501), and the second sponge strip (503) is fixedly connected to the protective cover (1).

8. An anti-interference circuit board according to claim 7, characterized in that: Two connecting seats (504) are fixedly connected to the protective cover (1), and two screws (505) are fixedly connected to the slide plate (501). The screws (505) pass through the adjacent connecting seats (504), and nuts (506) are threaded onto the screws (505).

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