Circuit board capable of preventing overheating damage

Abstract

The utility model relates to the technical field of circuit boards, in particular to a circuit board capable of preventing overheating damage, which comprises a mounting box and an upper cover, the circuit board is mounted in the mounting box, three air guide pipes are mounted on the bottom wall of the mounting box, and a plurality of air outlet holes are formed in the top surfaces of the three air guide pipes. The utility model has the advantages that the installation box and the upper cover are assembled into a closed space to provide a stable protection structure for the circuit board, the air guide box is arranged, the two fans are installed in the air guide box, and the two ends of the installation box are respectively provided with a plurality of air inlet holes and air outlet grooves, so that the two fans are electrified to operate, and the circuit board is protected. The top surface and the bottom surface of the circuit board are made to penetrate through air, the purpose of uniform heat dissipation of the circuit board is achieved, meanwhile, the two stop blocks at one end of the upper cover are matched with the limiting clamping grooves in the inner wall of the mounting box respectively, and then the screws at the two corners of the upper cover are screwed out, so that the upper cover is conveniently and rapidly disassembled, and the maintenance efficiency of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board that prevents overheating damage. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, thick copper boards, impedance boards, ultra-thin circuit boards, ultra-thin circuit boards, printed circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts. To avoid damage to the circuit board due to high temperature, existing circuit boards usually have a cooling fan installed on the outside to blow air for cooling.

[0003] Among them, to ensure the heat dissipation effect, the cooling fan is usually fixed to the outside of the circuit board by multiple bolts. However, when the circuit board needs to be repaired, the staff needs to first remove the bolts fixing the cooling fan before being able to measure and repair the circuit board. This method of installation by bolts makes the disassembly and assembly speed of the bolts and the cooling fan slow, resulting in an impact on the repair efficiency of the circuit board. Based on this, a circuit board that prevents overheating damage is proposed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a circuit board that prevents overheating damage, effectively solving the deficiencies of the prior art.

[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a circuit board that prevents overheating damage, including an installation box and an upper cover. A circuit board is installed inside the installation box. Three air ducts are installed on the bottom wall of the installation box, and a plurality of air outlet holes are opened on their top surfaces. One end of the installation box is installed with an air guide box connected to the air ducts. Fans are installed at both ends of the inner wall of the air guide box. A plurality of air inlet holes are opened on one side of the installation box close to the inner wall of the air guide box. A plurality of air outlet grooves are opened at the other end of the installation box. A wiring concave plate protruding outward is provided on one side of the installation box and the upper cover, and the two are spliced into a long tube structure.

[0006] Preferably, according to any of the above solutions, a plurality of support top blocks are installed on the bottom surface of the installation box. Both ends of the plurality of support top blocks are bent obliquely downward. By using this solution, it is convenient for both ends of the support top blocks to protrude obliquely downward, and then it is convenient to fix the position of the installation box by screwing to the external equipment shell or power distribution cabinet, ensuring that the circuit board is electrically connected to the external circuit through wires to complete certain function control.

[0007] Preferably, according to any of the above solutions, two limiting card slots are provided on the top wall of the installation box close to the upper cover. A stop block is installed at one end of the upper cover and is matched with the limiting card slot. The two corners at the other end of the upper cover are fixedly connected to the installation box by screws. By using this solution, it is convenient to snap one end of the upper cover with the installation box, and the two corners at the other end are connected to the installation box by screws, thus facilitating the formation of a quick-release structure. Then, in the later stage, the upper cover can be removed by unscrewing the screws to perform maintenance work on the circuit board.

[0008] Preferably, according to any of the above solutions, the four corners of the circuit board are fixedly connected to the inner wall of the installation box by screws. Protective pads for protecting the circuit board are installed at the four corners on the top and bottom surfaces of the circuit board. By using this solution, it is convenient to stably install the circuit board in the installation box by screws. At the same time, two protective pads are installed at the four corners of the circuit board, and the protective pads are distributed on the top and bottom surfaces of the circuit board, thus facilitating a certain degree of protection for the circuit board.

[0009] Preferably, according to any of the above solutions, filter nets for filtering air are installed on the sides of the air guide box close to the fan. By using this solution, it is convenient to filter the air entering the air guide box and the installation box to ensure the cleanliness of the air entering the installation box, thus avoiding dust deposition on the circuit board.

[0010] Preferably, according to any of the above solutions, multiple intake holes all face the top surface of the circuit board, and the shapes of the multiple intake holes are all waist-shaped. By using this solution, it is convenient to increase the size of the intake holes and enable the air to evenly pass through the top surface of the circuit board to uniformly dissipate heat from the power components on the top surface of the circuit board.

[0011] Preferably, according to any of the above solutions, two limiting blocks are installed on the inner walls of the two wiring concave plates. A protective tube is installed on the side of the four limiting blocks away from the circuit board. By using this solution, it is convenient to limit the installation of the protective tube. At the same time, the inner walls at the ends of the two wiring concave plates away from the circuit board are of a stepped structure, and the outer wall at the end of the protective tube away from the circuit board is recessed inward, which is matched with the stepped shape of the wiring concave plate, thus interfering with the limiting of the protective tube and facilitating the external wires to pass through the protective tube to establish an electrical connection with the circuit board.

[0012] The present utility model has the following advantages:

[0013] 1. The circuit board that prevents overheating damage is provided with an installation box and an upper cover. The two are assembled into a closed space, providing a stable protection structure for the circuit board. By setting up an air guide box with two fans installed inside, and at the same time, multiple air inlet holes and air outlet slots are respectively opened at both ends of the installation box. Then, when the two fans are powered on and running, air passes through the top and bottom surfaces of the circuit board, achieving the purpose of evenly dissipating heat from the circuit board. At the same time, two stoppers at one end of the upper cover are respectively engaged with the limit card slots on the inner wall of the installation box. Then, by unscrewing the screws at the two corners of the upper cover, it is convenient to quickly disassemble the upper cover and improve the maintenance efficiency of the circuit board.

[0014] 2. The circuit board that prevents overheating damage is provided with an installation box, and multiple support top blocks are installed on its bottom surface, which is convenient for stably fixing the installation box on the external equipment shell or power distribution cabinet. By setting up two wiring concave plates with a protective tube installed between them, it is convenient for external wires to pass through the protective tube and be electrically connected to the circuit board. At the same time, the protective tube provides certain protection for the wires. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the first perspective structure of the whole of the present utility model;

[0016] Figure 2 It is a schematic diagram of the second perspective structure of the whole of the present utility model;

[0017] Figure 3 It is a schematic diagram of the first perspective structure of the installation box of the present utility model;

[0018] Figure 4 It is a schematic diagram of the second perspective structure of the installation box of the present utility model;

[0019] Figure 5 It is a schematic diagram of the upper cover structure of the present utility model;

[0020] Figure 6 It is a schematic diagram of the first perspective structure of the air guide box of the present utility model;

[0021] Figure 7 It is a schematic diagram of the second perspective structure of the air guide box of the present utility model;

[0022] Figure 8 It is a schematic diagram of the protective tube structure of the present utility model.

[0023] In the figure: 1 - installation box, 2 - upper cover, 3 - air outlet slot, 4 - wiring concave plate, 5 - protective tube, 6 - air guide box, 7 - filter screen, 8 - support top block, 9 - circuit board, 10 - air guide tube, 11 - limit card slot, 12 - air inlet hole, 13 - air outlet hole, 14 - limit block, 15 - fan, 16 - stopper. Detailed Description of the Embodiment

[0024] The following further describes the present utility model in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following description.

[0025] As Figures 1 to 8 shown, a circuit board that prevents overheating damage includes an installation box 1 and an upper cover 2. A circuit board 9 is installed inside the installation box 1. Three air ducts 10 are installed on the bottom wall of the installation box 1, and a plurality of air outlet holes 13 are provided on the top surfaces of the three air ducts. One end of the installation box 1 is installed with an air guide box 6 communicated with the air ducts 10. Two fans 15 are installed at both ends of the inner wall of the air guide box 6. A plurality of air inlet holes 12 are provided on one side of the installation box 1 close to the inner wall of the air guide box 6. A plurality of air outlet slots 3 are provided at the other end of the installation box 1. A wiring concave plate 4 protruding outward is provided on one side of the installation box 1 and the upper cover 2, and the two are spliced into a long tube structure.

[0026] A plurality of support top blocks 8 are installed on the bottom surface of the installation box 1. Both ends of the plurality of support top blocks 8 are bent obliquely downward. As an optional technical solution of the present utility model, this facilitates the two ends of the support top blocks 8 to protrude obliquely downward, and then facilitates the fixed connection with the external equipment housing or the power distribution cabinet through screws to fix the position of the installation box 1, ensuring that the circuit board 9 is electrically connected to the external circuit through wires to complete certain function control.

[0027] Two limit card slots 11 are provided on the top wall of the installation box 1 close to the upper cover 2. A stop block 16 matched with the limit card slots 11 is installed at one end of the upper cover 2. The two corners at the other end of the upper cover 2 are fixedly connected to the installation box 1 through screws. As an optional technical solution of the present utility model, this facilitates the one end of the upper cover 2 to be clamped with the installation box 1, and the two corners at the other end are connected to the installation box 1 through screws, thereby facilitating the formation of a quick-disassembly structure. Then, by screwing out the screws in the later stage, the upper cover 2 can be removed to perform maintenance work on the circuit board 9.

[0028] The four corners of the circuit board 9 are fixedly connected to the inner wall of the installation box 1 through screws. Protective pads for protecting the circuit board 9 are installed at the four corners of the top and bottom surfaces of the circuit board 9. As an optional technical solution of the present utility model, this facilitates the stable installation of the circuit board 9 in the installation box 1 through screws. At the same time, two protective pads are installed at the four corners of the circuit board 9, and the protective pads are distributed at the top and bottom positions of the circuit board 9, thereby facilitating a certain protection for the circuit board 9.

[0029] Filter nets 7 for filtering air are installed on the sides of the air guide box 6 close to the fans 15. As an optional technical solution of the present utility model, this facilitates the filtering of the air entering the air guide box 6 and the installation box 1, ensuring the cleanliness of the air entering the installation box 1, and then avoiding the deposition of dust on the circuit board 9.

[0030] Multiple air inlets 12 all face the top surface of the circuit board 9. The outer shapes of the multiple air inlets 12 are all waist-shaped. As an alternative technical solution of the present invention, this is convenient for increasing the size of the air inlets 12, and at the same time enables air to evenly pass through the top surface position of the circuit board 9 to uniformly dissipate heat from the power components on the top surface of the circuit board 9.

[0031] Two limiting blocks 14 are installed on the inner walls of the two wiring concave plates 4. A protective tube 5 is installed on the side of the four limiting blocks 14 away from the circuit board 9. As an alternative technical solution of the present invention, this is convenient for limiting the installation of the protective tube 5. At the same time, the inner walls at one ends of the two wiring concave plates 4 away from the circuit board 9 are of a stepped structure, and the outer wall at one end of the protective tube 5 away from the circuit board 9 is recessed inward, which cooperates with the stepped outer shape of the wiring concave plate 4, thereby interfering with the limiting of the protective tube 5 and facilitating the external wires to pass through the protective tube 5 to establish an electrical connection with the circuit board 9.

[0032] The circuit board for preventing overheating damage requires the following steps during use:

[0033] 1) Unscrew the screws at the two corners of the upper cover 2 to quickly disassemble the upper cover 2 for overhauling the circuit board;

[0034] 2) The two fans 15 are powered on and run. A part of the air enters from the multiple air inlets 12 to the top surface of the circuit board 9, and another part of the air enters into the interiors of the three air guide tubes 10 and is ejected from the multiple air outlets 13 to the bottom surface of the circuit board 9, which is convenient for uniformly dissipating heat from the top and bottom surfaces of the circuit board 9.

[0035] In summary, when in use, by setting the installation box 1 and the upper cover 2, the two are assembled into a closed space to provide a stable protection structure for the circuit board 9. By setting the air guide box 6 with two fans 15 installed inside it, and at the same time, multiple air inlets 12 and an air outlet groove 3 are respectively formed at both ends of the installation box 1. Then, by powering on and running the two fans 15, air penetrates through the top and bottom surfaces of the circuit board 9 to achieve the purpose of uniformly dissipating heat from the circuit board 9. At the same time, the two stoppers 16 at one end of the upper cover 2 respectively cooperate with the limit card slots 11 on the inner wall of the installation box 1, and then unscrew the screws at the two corners of the upper cover 2, thereby facilitating the quick disassembly of the upper cover 2 and improving the overhaul efficiency of the circuit board. By setting the installation box 1 with multiple supporting top blocks 8 installed on its bottom surface, it is convenient to stably fix the installation box 1 on the external equipment shell or power distribution cabinet. By setting the two wiring concave plates 4 with a protective tube 5 installed between them, it is convenient for the external wires to pass through the protective tube 5 to make an electrical connection with the circuit board 9, and at the same time, the protective tube 5 provides a certain protection for the wires.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board that prevents overheating damage, characterized in that: The invention comprises an installation box (1) and an upper cover (2), wherein a circuit board (9) is installed inside the installation box (1), three air guide tubes (10) are installed on the bottom wall of the installation box (1), and a plurality of air outlet holes (13) are provided on the top surfaces of the three air guide tubes, an air guide box (6) connected to the air guide tube (10) is installed at one end of the installation box (1), fans (15) are installed at both ends of the inner wall of the air guide box (6), a plurality of air inlet holes (12) are provided on one side of the installation box (1) close to the inner wall of the air guide box (6), a plurality of air outlet grooves (3) are provided on the other end of the installation box (1), a wiring concave plate (4) protruding outward is provided on one side of the installation box (1) and the upper cover (2), and the two are spliced ​​to form a long tube structure.

2. A circuit board for preventing overheating damage according to claim 1, characterized in that: A plurality of supporting top blocks (8) are installed on the bottom surface of the installation box (1), and both ends of the plurality of supporting top blocks (8) are bent obliquely downward.

3. A circuit board for preventing overheating damage according to claim 2, characterized in that: The installation box (1) is provided with two limit slots (11) on the top wall close to the upper cover (2); a stopper (16) matching the limit slots (11) is installed at one end of the upper cover (2); and the two corners of the other end of the upper cover (2) are fixedly connected to the installation box (1) by screws.

4. A circuit board for preventing overheating damage according to claim 3, characterized in that: The four corners of the circuit board (9) are fixedly connected to the inner wall of the installation box (1) by means of screws, and protective pads are installed at the four corners of the top and bottom surfaces of the circuit board (9) to protect it.

5. A circuit board for preventing overheating damage according to claim 4, characterized in that: The sides of the air guide box (6) close to the fan (15) are all equipped with filter screens (7) for filtering air.

6. A circuit board for preventing overheating damage according to claim 5, characterized in that: The plurality of air inlet holes (12) are all facing the top surface of the circuit board (9), and the shapes of the plurality of air inlet holes (12) are all oval.

7. A circuit board for preventing overheating damage according to claim 6, characterized in that: Two limit blocks (14) are installed on the inner walls of the two wiring concave plates (4), and a protective tube (5) is installed on the side of the four limit blocks (14) away from the circuit board (9).

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