Stable circuit board capable of rapidly dissipating heat

By designing a heat dissipation structure at the bottom of the circuit board and using a cooling fan driven by a motor, the problem of inadequate heat dissipation of the circuit board is solved, achieving all-round rapid heat dissipation, protecting the circuit board from overheating, and extending its service life.

CN223515093UActive Publication Date: 2025-11-04MEIZHOU LIYUDA PCB CO LTD
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Patent Information

Application Number
CN202422810264.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-04
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

Existing circuit boards are prone to overheating during use due to inadequate heat dissipation at the bottom, which affects their lifespan.

Method used

A structure including a mounting base, a heat dissipation cavity, a heat dissipation slot, a heat dissipation mesh plate, and a heat sink was designed, which, combined with a drive motor and a cooling fan, achieves all-round rapid heat dissipation.

Benefits of technology

It effectively prevents the circuit board from generating high temperatures during use, thus extending the service life of the circuit board.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of circuit board heat dissipation, and discloses a stable circuit board capable of rapidly dissipating heat, which comprises a mounting base, mounting support legs are fixed on two sides of the bottom of the mounting base, a heat dissipation cavity and a heat dissipation groove are arranged in the mounting base, a heat dissipation net plate is fixed in the heat dissipation cavity, and the heat dissipation net plate is fixed in the heat dissipation groove. Cooling fins are arranged on the cooling net plate, internal threaded columns are arranged on the periphery of the top of the mounting base, a circuit board body is mounted on the internal threaded columns through fastening bolts, an operation table is fixed to the left side of the top of the mounting base, and a limiting sliding groove is formed in the right side of the operation table; and a threaded rod is rotatably installed in the limiting sliding groove, a driving motor is arranged in front of the operation table, and the output end of the driving motor is connected with the threaded rod, so that the circuit board body is conveniently and rapidly cooled in all directions, the circuit board body is not prone to generating high temperature in the use process, and the circuit board body is better protected.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board heat dissipation technology, specifically a stable circuit board that can dissipate heat quickly. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can also be called printed circuit boards or printed circuit boards, FPC circuit boards (also known as flexible circuit boards, which are highly reliable and flexible printed circuit boards made of polyimide or polyester film as substrates. They are characterized by high wiring density, light weight, thinness, and good bending properties.) and rigid-flex boards. The birth and development of FPC and PCB gave rise to the new product of rigid-flex boards. Therefore, a rigid-flex board is a circuit board that combines flexible circuit boards and rigid circuit boards through processes such as lamination, according to relevant process requirements, to form a circuit board with the characteristics of both FPC and PCB.

[0003] In existing technologies, when installing circuit boards, the bottom of the circuit board contacts the surface of the mounting platform. At this time, the heat dissipation effect of the bottom of the circuit board is not ideal, which makes the circuit board prone to high temperature during use. If the high temperature cannot be dissipated in time, it will seriously affect the service life of the circuit board.

[0004] In view of this, this technical solution proposes a stable circuit board with rapid heat dissipation, which can better solve the problems mentioned above.

[0005] Utility model content.

[0006] The technical solution adopted by this utility model is as follows: a stable circuit board with rapid heat dissipation, including a mounting base, mounting feet fixed on both sides of the bottom of the mounting base, a heat dissipation cavity and a heat dissipation groove opened inside the mounting base, a heat dissipation mesh plate fixed inside the heat dissipation cavity, heat dissipation fins provided on the heat dissipation mesh plate, and internal threaded posts provided around the top of the mounting base, and the circuit board body is installed on the internal threaded posts by fastening bolts.

[0007] An operating platform is fixed to the top left of the mounting base, and a limit groove is opened inside the right side of the operating platform. A threaded rod is rotatably installed inside the limit groove. A drive motor is set in front of the operating platform, and the output end of the drive motor is connected to the threaded rod. A limit slider is inserted into the limit groove, and the limit slider is threadedly connected to the threaded rod. A movable plate is fixed to the right side of the limit slider, and a cooling fan is set on the right side of the movable plate.

[0008] In a preferred embodiment, the mounting leg has an L-shaped structure, and the lower cross section of the mounting leg is provided with mounting holes.

[0009] In a preferred embodiment, the heat dissipation cavity and the heat dissipation groove are connected, and the heat dissipation groove is located around the mounting base.

[0010] In a preferred embodiment, the heat sinks are equidistantly distributed on the top of the heat dissipation mesh, and there are no fewer than six heat sinks.

[0011] In a preferred embodiment, a rubber post is fixed to the bottom end of the internally threaded post, and the rubber post is fixed around the top of the mounting base to buffer and protect the circuit board body.

[0012] In a preferred embodiment, the limiting slider has a threaded hole inside that matches the threaded rod, and the threaded rod is threadedly connected in the threaded hole.

[0013] In a preferred embodiment, a limiting plate is provided above the movable plate, and the limiting plate is in contact with the top of the operating table.

[0014] In a preferred embodiment, the bottom of the circuit board body is attached to the top of the heat sink, and the left side of the circuit board body is located relative to the middle of the cooling fan.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: it facilitates better all-round and rapid heat dissipation of the circuit board body, making it less likely to generate high temperature during the use of the circuit board body, and better protecting the circuit board body.

[0016] 1. In this utility model, the circuit board body is installed on the internal threaded post by fastening bolts, and at the same time, the bottom of the circuit board body is in contact with the heat sink. At this time, the circuit board body can be cooled through the heat dissipation cavity, heat dissipation groove, heat dissipation mesh plate and heat sink.

[0017] 2. In this utility model, the threaded rod is rotated by the drive motor, which causes the threaded rod to move the limiting slider, the moving plate, the limiting plate and the cooling fan. At this time, the cooling fan can quickly dissipate heat from all directions on the circuit board body, making it less likely for the circuit board body to generate high temperature during use, thus better protecting the circuit board body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first state structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the second state structure of this utility model;

[0020] Figure 3 This utility model Figure 1 and Figure 2 Enlarged schematic diagram of the structure of region A in the middle.

[0021] The markings in the diagram are: 1-Mounting base; 2-Mounting feet; 3-Heat dissipation cavity; 4-Heat dissipation groove; 5-Heat dissipation mesh plate; 6-Heat dissipation fin; 7-Internal threaded post; 8-Fasting bolt; 9-Circuit board body; 10-Operating table; 11-Limit slide groove; 12-Threaded rod; 13-Drive motor; 14-Limit slider; 15-Moving plate; 16-Limit plate; 17-Cooling fan. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following will combine Figures 1-3 A detailed description is provided of a stable circuit board with rapid heat dissipation according to an embodiment of the present invention.

[0024] refer to Figure 1-3 As shown, a stable circuit board with rapid heat dissipation includes a mounting base 1. Mounting legs 2 are fixed on both sides of the bottom of the mounting base 1. The mounting legs 2 have an L-shaped structure and mounting holes are provided in the cross-section below the mounting legs 2. The mounting base 1 has a heat dissipation cavity 3 and a heat dissipation groove 4 inside. The heat dissipation cavity 3 and the heat dissipation groove 4 are connected. The heat dissipation groove 4 is located around the perimeter of the mounting base 1. A heat dissipation mesh plate 5 is fixed inside the heat dissipation cavity 3. Heat dissipation fins 6 are provided on the heat dissipation mesh plate 5. The heat dissipation fins 6 are evenly distributed on the top of the heat dissipation mesh plate 5, and there are no less than six heat dissipation fins 6. The top perimeter of the mounting base 1 is provided with internally threaded posts 7. The circuit board body 9 is installed on the internally threaded posts 7 by fastening bolts 8. A rubber post is fixed to the bottom of the internally threaded posts 7. The rubber post is fixed around the top perimeter of the mounting base 1 to buffer and protect the circuit board body 9. The bottom of the circuit board body 9 is in contact with the top of the heat dissipation fins 6.

[0025] According to the above technical solution, the circuit board body 9 is installed on the internal threaded post 7 by fastening bolt 8. At the same time, the bottom of the circuit board body 9 is in contact with the heat sink 6. At this time, the circuit board body 9 can be cooled through the heat dissipation cavity 3, heat dissipation groove 4, heat dissipation mesh plate 5 and heat sink 6.

[0026] refer to Figure 1-3As shown, an operating platform 10 is fixed to the top left side of the mounting base 1, and a limiting groove 11 is opened inside the right side of the operating platform 10. A threaded rod 12 is rotatably installed inside the limiting groove 11. A drive motor 13 is set in front of the operating platform 10, and the output end of the drive motor 13 is connected to the threaded rod 12. A limiting slider 14 is inserted into the limiting groove 11, and the limiting slider 14 is threadedly connected to the threaded rod 12. A threaded hole adapted to the threaded rod 12 is opened inside the limiting slider 14, and the threaded rod 12 is threadedly connected to the threaded hole. A movable plate 15 is fixed to the right side of the limiting slider 14. A limiting plate 16 is set above the movable plate 15, and the limiting plate 16 is attached to the top of the operating platform 10. A cooling fan 17 is set on the right side of the movable plate 15, and the circuit board body 9 is positioned at the middle of the left side relative to the cooling fan 17.

[0027] According to the above technical solution, the threaded rod 12 is rotated by the drive motor 13, which causes the threaded rod 12 to move the limiting slider 14, the moving plate 15, the limiting plate 16 and the cooling fan 17. At this time, the cooling fan 17 can quickly dissipate heat from all directions on the circuit board body 9, so that the circuit board body 9 is less likely to generate high temperature during use, and better protects the circuit board body 9.

[0028] Advantages of this application: It facilitates better all-round and rapid heat dissipation of the circuit board body 9, making it less likely to generate high temperature during use, and better protecting the circuit board body 9.

[0029] Working principle: The circuit board body 9 is installed on the internal threaded post 7 by fastening bolt 8. At the same time, the bottom of the circuit board body 9 is in contact with the heat sink 6. At this time, the circuit board body 9 can be cooled through the heat dissipation cavity 3, heat dissipation groove 4, heat dissipation mesh plate 5 and heat sink 6.

[0030] The drive motor 13 drives the threaded rod 12 to rotate, which in turn drives the limit slider 14, the moving plate 15, the limit plate 16 and the cooling fan 17 to move in position. At this time, the cooling fan 17 can quickly dissipate heat from all directions on the circuit board body 9, making it less likely for the circuit board body 9 to generate high temperature during use, thus better protecting the circuit board body 9.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stable circuit board with rapid heat dissipation, comprising a mounting base (1), characterized in that: The mounting base (1) has mounting feet (2) fixed on both sides of its bottom. The mounting base (1) has a heat dissipation cavity (3) and a heat dissipation groove (4) inside. A heat dissipation mesh plate (5) is fixed inside the heat dissipation cavity (3). Heat dissipation fins (6) are provided on the heat dissipation mesh plate (5). The mounting base (1) has internal threaded posts (7) around its top. A circuit board body (9) is installed on the internal threaded posts (7) by fastening bolts (8). An operating table (10) is fixed on the top left side of the mounting base (1), and a limiting groove (11) is opened inside the right side of the operating table (10). A threaded rod (12) is rotatably installed inside the limiting groove (11). A drive motor (13) is provided in front of the operating table (10), and the output end of the drive motor (13) is connected to the threaded rod (12). A limiting slider (14) is inserted inside the limiting groove (11), and the limiting slider (14) is threadedly connected to the threaded rod (12). A moving plate (15) is fixed on the right side of the limiting slider (14), and a cooling fan (17) is provided on the right side of the moving plate (15).

2. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The mounting leg (2) has an L-shaped structure, and the lower cross section of the mounting leg (2) is provided with mounting holes.

3. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The heat dissipation cavity (3) and the heat dissipation groove (4) are connected, and the heat dissipation groove (4) is located around the mounting base (1).

4. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The heat sinks (6) are evenly distributed on the top of the heat dissipation mesh plate (5), and there are no fewer than six heat sinks (6).

5. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The bottom end of the internal threaded post (7) is fixed with a rubber post, and the rubber post is fixed around the top of the mounting base (1) to buffer and protect the circuit board body (9).

6. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The limiting slider (14) has a threaded hole inside that is compatible with the threaded rod (12), and the threaded rod (12) is threadedly connected in the threaded hole.

7. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: A limiting plate (16) is provided above the movable plate (15), and the limiting plate (16) is attached to the top of the operating table (10).

8. A stable circuit board with rapid heat dissipation as described in claim 1, characterized in that: The bottom of the circuit board body (9) is attached to the top of the heat sink (6), and the left side of the circuit board body (9) is located relative to the middle of the heat sink (17).