PCB with good heat dissipation effect

Abstract

The utility model relates to the technical field of PCBs, and discloses a PCB with a good heat dissipation effect, which comprises an upper fixed frame and a lower fixed frame which are correspondingly arranged up and down, a heat dissipation assembly arranged on the upper fixed frame, and an installation assembly arranged on the lower fixed frame, the mounting assembly comprises four rectangular mounting grooves, the four rectangular mounting grooves are formed in the upper surface of the lower fixing frame, two mounting rectangular blocks are clamped to the inner wall of each rectangular mounting groove, the four mounting rectangular blocks are fixedly connected with the upper fixing frame, first threaded sleeves are fixedly connected to the four mounting rectangular blocks in a sleeving mode, and the first threaded sleeves are fixedly connected with the lower fixing frame in a sleeving mode. When the PCB needs to be disassembled, the upper frame and the lower frame can be separated and the PCB can be taken out by reversely rotating the connector, moving the threaded rod upwards and loosening the upper fixing frame, the design of the convenient installation assembly facilitates later maintenance and replacement, and the convenience of overall disassembly of the upper fixing frame is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board technology, specifically to a PCB board with good heat dissipation. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnection. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board. PCBs can be classified according to the number of circuit layers, such as single-sided boards, double-sided boards, four-layer boards, six-layer boards, and other multi-layer circuit boards. In order to prevent the circuit structure from generating high temperatures during use, heat sinks and cooling fans are usually installed on the outside of the PCB for cooling and to prevent the PCB from being damaged by high temperatures.

[0003] Existing heat dissipation PCBs are usually directly soldered or fixed to heat dissipation fins when installed. Soldering affects later maintenance, while bolt installation requires disassembly with auxiliary parts, which is inconvenient, thus affecting the assembly and disassembly of the heat dissipation structure. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a PCB board with good heat dissipation performance. It solves the problem that existing heat dissipation PCB boards are usually directly welded or fixed with bolts when installed with heat dissipation fins. Welding affects later maintenance, and bolt installation requires disassembly with auxiliary parts, which is inconvenient and affects the disassembly and assembly of the heat dissipation structure.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a PCB board with good heat dissipation, comprising an upper fixing frame and a lower fixing frame, wherein the upper fixing frame and the lower fixing frame are arranged correspondingly to each other.

[0008] The heat dissipation component is mounted on the upper fixed frame.

[0009] The mounting component is set on the lower fixed frame and includes four rectangular mounting slots, all of which are formed on the upper surface of the lower fixed frame.

[0010] Each of the four rectangular mounting slots has two mounting rectangular blocks snapped into its inner wall. All four mounting rectangular blocks are fixedly connected to the upper fixed frame, and each of the four mounting rectangular blocks is fixedly fitted with a first threaded sleeve.

[0011] Preferably, the mounting assembly further includes four second threaded sleeves, which are respectively fixedly connected to the left and right sides of the lower fixed frame, and the four second threaded sleeves respectively penetrate into the inner wall of the corresponding rectangular mounting groove.

[0012] Preferably, the inner walls of the four second threaded sleeves are threaded with threaded rods, and the ends of the four threaded rods away from the lower fixed frame are fixedly connected with connectors.

[0013] Preferably, the upper surface of the lower fixed frame is provided with a second mounting groove, and the inner wall of the second mounting groove is provided with a PCB board.

[0014] Preferably, the heat dissipation assembly includes a protective box, which is fixedly connected to the upper surface of the upper fixed frame, and a rectangular mounting bracket communicating with the interior of the protective box is fixedly connected to the upper surface of the protective box.

[0015] The rectangular mounting bracket has a cooling fan fixedly installed on its inner wall, and the protective box has a dust cover fixedly installed on its upper surface.

[0016] Preferably, the front and rear surfaces of the protective box are fixedly connected to connecting pipes that communicate with the interior, and dustproof nets are fixedly installed on the four connecting pipes.

[0017] Each of the four connecting pipes has an exhaust fan fixedly installed inside;

[0018] The two exhaust fans on the front are used to draw outside air into the protective box, while the two exhaust fans on the rear are used to draw the air out of the protective box.

[0019] Preferably, the inner wall of the upper fixed frame is fixedly connected with a plurality of heat sinks, and the lower surface of the upper fixed frame is provided with a first mounting groove communicating with its interior.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a PCB board with good heat dissipation, which has the following beneficial effects:

[0022] 1. This PCB board has good heat dissipation. When it needs to be disassembled, simply rotate the connector in the opposite direction, move the threaded rod upward, loosen the upper fixing frame, and the upper and lower frames can be separated to remove the PCB board. The convenient installation component design facilitates later maintenance and replacement, and improves the convenience of disassembling the upper fixing frame as a whole.

[0023] 2. This PCB board with excellent heat dissipation achieves efficient heat conduction and convection through the synergistic effect of the heat sink and air circulation system. Combined with the dustproof design, it not only ensures heat dissipation but also improves the service life and operational stability of the PCB board. It is suitable for high-power, high-heat electronic equipment scenarios, ensuring that circuit components operate at appropriate temperatures and reducing the risk of failure due to overheating.

[0024] 3. The PCB board with good heat dissipation ensures that the first threaded sleeve and the second threaded sleeve are matched to ensure that the threaded rod is evenly stressed, avoiding deformation of the PCB board due to uneven stress during installation. The snap-fit ​​structure of the rectangular mounting slot and the mounting rectangular block enhances the connection stability of the upper and lower frames and prevents loosening under vibration. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the PCB board with good heat dissipation effect according to this utility model;

[0026] Figure 2 This is a schematic diagram of the lower surface of the fixed frame of this utility model;

[0027] Figure 3 This is a schematic diagram of the upper surface of the lower fixing frame of this utility model;

[0028] Figure 4 This is a schematic diagram of the upper surface of the protective box of this utility model.

[0029] In the diagram: 1. Upper fixed frame; 2. Lower fixed frame; 3. Protective box; 4. Connector; 5. Connecting pipe; 6. Dust cover; 7. Heat sink; 8. First mounting slot; 9. First threaded sleeve; 10. Mounting rectangular block; 11. PCB board; 12. Second mounting slot; 13. Threaded rod; 14. Rectangular mounting slot; 15. Second threaded sleeve; 16. Cooling fan; 17. Rectangular mounting bracket. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-4 This utility model provides a new technical solution: a PCB board with good heat dissipation effect, including an upper fixed frame 1 and a lower fixed frame 2, the upper fixed frame 1 and the lower fixed frame 2 are arranged correspondingly to each other, and a heat dissipation component is arranged on the upper fixed frame 1.

[0032] The mounting component is set on the lower fixed frame 2. The mounting component includes four rectangular mounting slots 14, all of which are opened on the upper surface of the lower fixed frame 2.

[0033] Among them, the inner walls of the four rectangular mounting slots 14 are each fitted with two mounting rectangular blocks 10, and the four mounting rectangular blocks 10 are all fixedly connected to the upper fixed frame 1. The four mounting rectangular blocks 10 are each fixedly fitted with a first threaded sleeve 9.

[0034] Furthermore, the mounting assembly also includes four second threaded sleeves 15, which are fixedly connected to the left and right sides of the lower fixed frame 2 respectively, and the four second threaded sleeves 15 penetrate into the inner wall of the corresponding rectangular mounting groove 14.

[0035] Furthermore, the inner walls of the four second threaded sleeves 15 are all threaded with threaded rods 13, and the ends of the four threaded rods 13 away from the lower fixed frame 2 are all fixedly connected with connectors 4.

[0036] Furthermore, a second mounting groove 12 is provided on the upper surface of the lower fixed frame 2, and a PCB board 11 is provided on the inner wall of the second mounting groove 12.

[0037] Furthermore, the heat dissipation assembly includes a protective box 3, which is fixedly connected to the upper surface of the upper fixed frame 1. A rectangular mounting bracket 17 communicating with the interior of the protective box 3 is fixedly connected to the upper surface of the protective box 3.

[0038] A cooling fan 16 is fixedly installed on the inner wall of the rectangular mounting bracket 17, and a dust cover 6 is fixedly installed on the upper surface of the protective box 3.

[0039] Furthermore, the front and rear surfaces of the protective box 3 are fixedly connected with connecting pipes 5 that communicate with its interior, and dustproof nets are fixedly installed on the four connecting pipes 5.

[0040] Each of the four connecting pipes 5 has an exhaust fan fixedly installed inside;

[0041] The two exhaust fans located at the front are used to draw outside air into the interior of the protective box 3, while the two exhaust fans located at the rear are used to draw the air out of the interior of the protective box 3.

[0042] Furthermore, multiple heat sinks 7 are fixedly connected to the inner wall of the upper fixed frame 1, and a first mounting groove 8 communicating with the interior is opened on the lower surface of the upper fixed frame 1.

[0043] Furthermore, when using this PCB board with good heat dissipation, when installing the PCB board 11, the worker first places the PCB board 11 in the inner wall of the second mounting slot 12, then places the upper fixing frame 1 on the upper surface of the lower fixing frame 2, and makes the upper surface of the PCB board 11 snap into the inner wall of the first mounting slot 8.

[0044] In this process, four rectangular mounting blocks 10 are simultaneously engaged into the inner walls of two rectangular mounting slots 14. Then, the four connectors 4 are rotated, which drives the threaded rod 13 to rotate. The threaded rod 13 moves towards the first threaded sleeve 9 through the threaded engagement with the second threaded sleeve 15, and then rotates into the inner wall of the first threaded sleeve 9, so that the rectangular mounting blocks 10 are tightly engaged in the rectangular mounting slots 14, thereby fixing the upper fixing frame 1. The PCB board 11 is clamped by the engagement of the first mounting slot 8 and the second mounting slot 12, ensuring that the PCB board 11 is stably installed. The heat sink 7 on the inner wall of the upper fixing frame 1 is tightly attached to the upper surface of the PCB board 11, providing a conduction path for subsequent heat dissipation.

[0045] When the PCB board 11 is powered on, the cooling fan 16 and four exhaust fans inside the protective box 3 are activated. The two exhaust fans on the front side filter the outside air through the dust filter of the connecting pipe 5 and draw the cool air into the protective box 3. When the air flows through the heat sink 7, it absorbs the heat conducted by the PCB board 11 through the heat sink 7 and forms hot air. The two exhaust fans on the rear side work simultaneously to exhaust the hot air to the outside through the rear connecting pipe 5, forming an air circulation and accelerating heat dissipation.

[0046] The rotation of the cooling fan 16 further enhances the air convection inside the protective box 3, allowing the hot air on the surface of the heat sink 7 to be quickly carried away. Combined with the large area of ​​metal material of the heat sink 7, it effectively expands the heat dissipation area and improves the heat dissipation efficiency. The dustproof net prevents dust from entering the protective box 3, avoiding dust accumulation that could affect the thermal conductivity of the heat sink 7 and the insulation of the PCB board 11.

[0047] When it is necessary to disassemble the PCB board 11, the connector 4 is rotated in the opposite direction, the threaded rod 13 moves upward, the upper fixing frame 1 is loosened, the upper and lower frames can be separated, and the PCB board 11 can be taken out. The convenient installation component design facilitates later maintenance and replacement, and improves the convenience of disassembling the upper fixing frame 1 as a whole.

[0048] The engagement of the first threaded sleeve 9 and the second threaded sleeve 15 ensures that the threaded rod 13 is subjected to uniform force, thus avoiding deformation of the PCB board 11 due to uneven force during installation. The snap-fit ​​structure between the rectangular mounting slot 14 and the mounting rectangular block 10 enhances the connection stability of the upper and lower frames and prevents loosening under vibration.

[0049] Through the synergistic effect of heat sink 7 and air circulation system, the PCB board achieves efficient heat conduction and convection cooling. Combined with the dustproof design, it improves the service life and operational stability of the PCB board while ensuring heat dissipation. It is suitable for high-power, high-heat electronic equipment scenarios, ensuring that circuit components operate at appropriate temperatures and reducing the risk of failure due to overheating.

[0050] Structural Description: Upper Fixed Frame 1: The upper support structure of the device, which is set up vertically and vertically with the lower fixed frame 2. The heat sink 7 is fixed on the inner wall, and the first mounting groove 8 is opened on the lower surface to snap onto the upper surface of the PCB board 11 and provide a heat dissipation conduction path.

[0051] Lower fixed frame 2: The lower support structure of the device, with a rectangular mounting groove 14 and a second mounting groove 12 on the upper surface. The former is used to snap on the rectangular block 10, and the latter is used to place the lower surface of the PCB board 11 and cooperate with the upper fixed frame to clamp the PCB board.

[0052] Rectangular mounting groove 14: It is opened on the upper surface of the lower fixed frame 2, and the inner wall is used to snap on the rectangular block 10, providing a positioning groove for the connection of the upper and lower frames and enhancing the connection stability.

[0053] Install rectangular block 10: It is fixed to the bottom of the upper fixed frame 1, snaps into the inner wall of the rectangular mounting groove 14, and the surface is fitted with the first threaded sleeve 9, which cooperates with the threaded rod 13 to realize the tight connection between the upper and lower frames.

[0054] First threaded sleeve 9: It is fixedly sleeved on the mounting rectangular block 10. Its inner wall is threadedly engaged with the threaded rod 13. The mounting rectangular block and the lower fixed frame are tightly engaged or loosened by screwing the threaded rod in or out.

[0055] The second threaded sleeve 15 is fixedly connected to the left and right sides of the lower fixed frame 2, and extends through the inner wall of the rectangular mounting groove 14 to provide threaded support for the threaded rod 13, ensuring that the threaded rod is subjected to uniform force and preventing the PCB board from deforming due to uneven force.

[0056] Threaded rod 13: It is threaded into the second threaded sleeve 15, with one end connected to the connector 4 and the other end screwed into the first threaded sleeve 9. By rotating, the distance between the upper and lower frames can be adjusted to achieve the fastening or disassembly of the rectangular block in the rectangular mounting slot.

[0057] Connector 4: Fixed to the top of the threaded rod 13, it is convenient to manually rotate the threaded rod and drive the threaded rod to move within the second threaded sleeve 15 to complete the installation and disassembly of the upper and lower frames.

[0058] The second mounting slot 12 is located on the upper surface of the lower fixed frame 2. The inner wall of the slot 11 is used to place the PCB board 11. It cooperates with the first mounting slot 8 of the upper fixed frame to clamp the PCB board from both the upper and lower sides, ensuring its stable installation.

[0059] Rectangular mounting bracket 17: fixed to the upper surface of the protective box 3, with a cooling fan 16 installed on the inner wall to provide support for the fan, ensure its stability during rotation, and enhance air convection inside the protective box.

[0060] Cooling fan 16: Installed inside the rectangular mounting bracket 17, it accelerates the airflow inside the protective box 3 when it rotates, promotes the exchange of hot and cold air on the surface of the heat sink 7, and improves the efficiency of convection cooling.

[0061] Connecting pipe 5: runs through the front and rear surfaces of the protective box 3, and is equipped with an exhaust fan inside. The two pipes on the front are used to draw in cold air from the outside, and the two pipes on the rear are used to exhaust hot air, forming an air circulation channel that runs through the protective box.

[0062] Heat sink 7: Fixed to the inner wall of the upper fixing frame 1, it fits tightly against the upper surface of the PCB board 11. It uses metal material (such as aluminum or copper) to expand the heat dissipation area and quickly conduct the heat generated by the PCB board to the air, thereby improving the heat conduction efficiency.

[0063] The first mounting slot 8 is located on the lower surface of the upper fixed frame 1 and engages with the upper surface of the PCB board 11 to ensure that the heat sink 7 is in close contact with the PCB board, while restricting the horizontal movement of the PCB board. It works in conjunction with the second mounting slot of the lower fixed frame to achieve bidirectional positioning.

[0064] 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 PCB board with good heat dissipation, characterized in that, include: The upper fixed frame (1) and the lower fixed frame (2) are set to correspond to each other. Heat dissipation assembly, which is mounted on the upper fixed frame (1); The mounting component is set on the lower fixed frame (2) and includes four rectangular mounting slots (14), all of which are opened on the upper surface of the lower fixed frame (2). Among them, the inner walls of the four rectangular mounting slots (14) are each fitted with two mounting rectangular blocks (10), and the four mounting rectangular blocks (10) are all fixedly connected to the upper fixed frame (1). The four mounting rectangular blocks (10) are all fixedly fitted with a first threaded sleeve (9).

2. The PCB board with good heat dissipation according to claim 1, characterized in that: The mounting assembly also includes four second threaded sleeves (15), which are fixedly connected to the left and right sides of the lower fixed frame (2) respectively, and the four second threaded sleeves (15) penetrate into the inner wall of the corresponding rectangular mounting groove (14).

3. The PCB board with good heat dissipation according to claim 2, characterized in that: The inner walls of the four second threaded sleeves (15) are threaded with threaded rods (13), and the ends of the four threaded rods (13) away from the lower fixed frame (2) are fixedly connected with connectors (4).

4. The PCB board with good heat dissipation according to claim 1, characterized in that: The upper surface of the lower fixed frame (2) is provided with a second mounting groove (12), and the inner wall of the second mounting groove (12) is provided with a PCB board (11).

5. The PCB board with good heat dissipation according to claim 1, characterized in that: The heat dissipation assembly includes a protective box (3), which is fixedly connected to the upper surface of the upper fixed frame (1). A rectangular mounting bracket (17) communicating with the interior of the protective box (3) is fixedly connected to the upper surface of the protective box (3). Among them, a cooling fan (16) is fixedly installed on the inner wall of the rectangular mounting bracket (17), and a dust cover (6) is fixedly installed on the upper surface of the protective box (3).

6. The PCB board with good heat dissipation according to claim 5, characterized in that: The front and rear surfaces of the protective box (3) are fixedly connected to the internal connecting pipes (5), and dustproof nets are fixedly installed on the four connecting pipes (5). Among them, exhaust fans are fixedly installed inside the four connecting pipes (5); Among them, the two exhaust fans located on the front side are used to draw outside air into the interior of the protective box (3), and the two exhaust fans located on the rear side are used to draw the air inside the protective box (3) out to the outside.

7. The PCB board with good heat dissipation according to claim 1, characterized in that: The inner wall of the upper fixed frame (1) is fixedly connected with a number of heat sinks (7), and the lower surface of the upper fixed frame (1) is provided with a first mounting groove (8) that communicates with its interior.

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