Corrosion-resistant long-life circuit board

Abstract

The utility model relates to the field of circuit boards, and discloses a corrosion-resistant long-life circuit board, which comprises a circuit board main body and a fixed plate, the upper end of the fixed plate is fixedly provided with a heat dissipation plate, the periphery of the heat dissipation plate is provided with a plurality of heat dissipation holes, and the lower end of the circuit board main body is fixedly provided with heat conduction silicone grease; the circuit board body comprises a base layer, a first reinforcing layer is fixedly arranged on the outer surface of the base layer, a second reinforcing layer is fixedly arranged on the outer surface of the first reinforcing layer, and a protective layer is fixedly arranged on the outer surface of the second reinforcing layer. According to the circuit board, through the design of the heat dissipation plate, the heat dissipation holes, the heat conduction silicone grease, the springs, the threaded grooves, the threaded columns and the moving blocks, the heat conduction silicone grease can absorb heat generated when the circuit board main body works and transmit the heat to the heat dissipation plate, and the heat dissipation plate can quickly conduct the heat out, so that the temperature of the circuit board main body is effectively reduced, and the service life of the circuit board is prolonged. And long-term high temperature of electronic components caused by long-term use of the circuit board is avoided.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a corrosion-resistant and long-life circuit board. Background Art

[0002] A circuit board is a basic device used to support, connect and distribute precision electronic components. Through the connection and fixation of the circuit board, a group of related electronic devices are combined into an electronic circuit with a specific function, making the circuit miniaturized and intuitive, which plays an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances.

[0003] Most of the existing circuit boards will have a high temperature after long-term use. Electronic components are prone to damage when exposed to high temperature for a long time, which affects the overall service life of the circuit board. In addition, most circuit boards have poor corrosion resistance and cannot meet the requirements of use. Therefore, technical personnel in this field provide a corrosion-resistant and long-life circuit board to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a corrosion-resistant and long-life circuit board. The circuit board has good heat dissipation as a whole through the design of a heat dissipation plate, heat dissipation holes and thermal conductive silicone grease, and the design of a base layer, a first reinforcement layer, a second reinforcement layer and a protective layer effectively improves the overall corrosion resistance and heat resistance of the circuit board, as well as the service life.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A corrosion-resistant and long-life circuit board, comprising a circuit board body and a fixing plate, wherein a heat sink is fixedly arranged on the upper end of the fixing plate, a plurality of heat dissipation holes are opened around the heat sink, and thermal conductive silicone grease is fixedly arranged on the lower end of the circuit board body;

[0007] The circuit board body comprises a base layer, a first reinforcement layer is fixedly arranged on the outer surface of the base layer, a second reinforcement layer is fixedly arranged on the outer surface of the first reinforcement layer, and a protective layer is fixedly arranged on the outer surface of the second reinforcement layer;

[0008] Through the above technical solution, the thermal grease can absorb the heat generated by the circuit board body when it is working, and transfer the heat to the heat sink. The heat sink can quickly dissipate the heat, thereby effectively reducing the temperature of the circuit board body. The heat dissipation holes can be used to improve the overall heat dissipation performance of the heat sink. The circuit board body is designed with a base layer, a first reinforcement layer, a second reinforcement layer, and a protective layer, thereby effectively improving the overall corrosion resistance and heat resistance of the circuit board, as well as the service life.

[0009] Further, the circuit board body comprises a first circuit board, a second circuit board is glued and fixed to the lower end of the first circuit board, and a third circuit board is glued and fixed to the lower end of the second circuit board;

[0010] Through the above technical solution, the first circuit board, the second circuit board and the third circuit board are fixed by gluing.

[0011] Furthermore, fixing rods are movably arranged at the four corners of the upper end of the circuit board body, threaded columns are fixedly arranged at the middle positions of the lower ends of the four fixing rods, and fixing blocks are fixedly arranged at both sides of the lower ends of the four fixing rods;

[0012] Through the above technical solution, positioning holes are opened at the four corners of the first circuit board, the second circuit board and the third circuit board. By inserting the fixing rod into the positioning hole, the first circuit board, the second circuit board and the third circuit board can be easily aligned. The threaded column can be used in conjunction with the threaded groove, and the fixed block can be used in conjunction with the movable block.

[0013] Furthermore, springs are fixedly arranged on both sides of the four corners inside the fixed plate, and moving blocks are fixedly arranged on the upper ends of the eight springs;

[0014] Through the above technical solution, when the threaded column and the threaded groove are separated, the spring can drive the moving block to move through the reaction force, thereby realizing the rapid ejection of the fixing rod from the inside of the fixing plate.

[0015] Furthermore, thread grooves are fixedly arranged at the middle positions of the four corners inside the fixing plate, and threaded columns are threadedly sleeved inside the four thread grooves;

[0016] Through the above technical solution, the first circuit board, the second circuit board, the third circuit board and the fixing plate are connected and fixed.

[0017] Furthermore, the base layer is made of ceramic material, and the first reinforcement layer is made of polyimide material;

[0018] Through the above technical scheme, the ceramic material has the advantages of pressure resistance and shock resistance, which effectively enhances the pressure resistance and shock resistance of the circuit board. Polyimide has the advantages of good electrical insulation and heat resistance, which effectively enhances the electrical insulation and heat resistance of the circuit board.

[0019] Furthermore, the second reinforcement layer is made of epoxy phenolic paint, and the protective layer is made of urushiol resin paint;

[0020] Through the above technical scheme, the epoxy phenolic coating has good heat resistance and corrosion resistance, and the lacquer phenol resin coating has good corrosion resistance. The corrosion resistance of the circuit board is effectively enhanced by the combined use of the epoxy phenolic coating and the lacquer phenol resin coating.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a corrosion-resistant and long-life circuit board. The circuit board is designed with a heat dissipation plate, a heat dissipation hole, thermal conductive silicone grease, a spring, a threaded groove, a threaded column, and a moving block. The thermal conductive silicone grease can absorb the heat generated by the circuit board body when it is working, and transfer the heat to the heat dissipation plate. The heat dissipation plate can quickly conduct the heat, thereby effectively reducing the temperature of the circuit board body, avoiding the long-term high temperature condition of the electronic components caused by the long-term use of the circuit board, thereby affecting the service life of the electronic components. The circuit board body and the fixed plate can be connected and fixed by the coordinated use of the threaded column and the threaded groove. When the threaded column and the threaded groove are separated, the spring can drive the moving block to move through the reaction force, thereby realizing the rapid ejection of the fixing rod from the inside of the fixing plate, and realizing the rapid separation of the fixing plate and the circuit board body.

[0023] 2. The utility model proposes a corrosion-resistant and long-life circuit board. The base layer of the circuit board adopts ceramic material to effectively enhance the pressure resistance and shock resistance of the circuit board. The first reinforcement layer adopts polyimide material to effectively enhance the electrical insulation and heat resistance of the circuit board. The second reinforcement layer and the protective layer adopt epoxy phenolic paint and lacquer phenol resin paint respectively. The anti-corrosion performance of the circuit board is effectively enhanced by the combined use of epoxy phenolic paint and lacquer phenol resin paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the axle side of the utility model;

[0025] Figure 2 It is a front cross-sectional schematic diagram proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the main structure of the circuit board proposed by the utility model;

[0027] Figure 4 This is an enlarged view of point A proposed by the utility model.

[0028] Legend:

[0029] 1. Circuit board body; 2. Heat dissipation plate; 3. Heat dissipation holes; 4. Fixing plate; 5. Fixing rod; 6. Base layer; 7. First reinforcement layer; 8. Second reinforcement layer; 9. Protective layer; 10. Threaded column; 11. Fixed block; 12. Moving block; 13. Spring; 14. Threaded groove; 15. Thermal grease; 101. First circuit board; 102. Second circuit board; 103. Third circuit board. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-4 The utility model provides an embodiment: a corrosion-resistant and long-life circuit board, including a circuit board body 1 and a fixing plate 4, a heat dissipation plate 2 is fixedly arranged on the upper end of the fixing plate 4, a plurality of heat dissipation holes 3 are opened around the heat dissipation plate 2, and a thermal conductive silicone grease 15 is fixedly arranged on the lower end of the circuit board body 1; the circuit board body 1 includes a base layer 6, a first reinforcement layer 7 is fixedly arranged on the outer surface of the base layer 6, a second reinforcement layer 8 is fixedly arranged on the outer surface of the first reinforcement layer 7, and a protective layer 9 is fixedly arranged on the outer surface of the second reinforcement layer 8.

[0032] When the circuit board is in use, the heat dissipation plate 2, the heat dissipation holes 3 and the thermal grease 15 are used together to quickly dissipate the heat generated by the circuit board body 1 when it is working, thereby effectively reducing the temperature of the circuit board body 1, and preventing the electronic components from being in a high temperature state for a long time due to long-term use of the circuit board, thereby affecting the service life of the electronic components. The circuit board body 1 is designed with a base layer 6, a first reinforcement layer 7, a second reinforcement layer 8 and a protective layer 9, thereby effectively improving the overall corrosion resistance and heat resistance of the circuit board, as well as the service life.

[0033] Reference Figure 1-2 and Figure 4 The circuit board body 1 includes a first circuit board 101, a second circuit board 102 is glued and fixed to the lower end of the first circuit board 101, a third circuit board 103 is glued and fixed to the lower end of the second circuit board 102, fixing rods 5 are movably provided at the four corners of the upper end of the circuit board body 1, threaded columns 10 are fixedly provided at the middle positions of the lower ends of the four fixing rods 5, fixing blocks 11 are fixedly provided on both sides of the lower ends of the four fixing rods 5, springs 13 are fixedly provided on both sides of the four corners of the fixing plate 4, and moving blocks 12 are fixedly provided on the upper ends of the eight springs 13, threaded grooves 14 are fixedly provided at the middle positions of the four corners of the fixing plate 4, and threaded columns 10 are threadedly sleeved inside the four threaded grooves 14.

[0034] Positioning holes are provided at the four corners of the first circuit board 101, the second circuit board 102 and the third circuit board 103. By inserting the fixing rod 5 into the positioning hole, the first circuit board 101, the second circuit board 102 and the third circuit board 103 are conveniently aligned. The first circuit board 101, the second circuit board 102 and the third circuit board 103 are fixed by gluing. The circuit board body 1 and the fixing plate 4 can be connected and fixed by the threaded column 10 and the threaded groove 14. When the threaded column 10 and the threaded groove 14 are separated, the spring 13 can drive the moving block 12 to move through the reaction force, so as to quickly push the fixing rod 5 out of the fixing plate 4.

[0035] Reference Figure 3 The base layer 6 is made of ceramic material, the first reinforcement layer 7 is made of polyimide material, the second reinforcement layer 8 is made of epoxy phenolic paint, and the protective layer 9 is made of lacquer phenol resin paint.

[0036] The base layer 6 adopts ceramic material to effectively enhance the pressure resistance and shock resistance of the circuit board. The first reinforcement layer 7 adopts polyimide material to effectively enhance the electrical insulation and heat resistance of the circuit board. The second reinforcement layer 8 and the protective layer 9 adopt epoxy phenolic paint and lacquer phenol resin paint respectively. The combination of epoxy phenolic paint and lacquer phenol resin paint effectively enhances the corrosion resistance of the circuit board.

[0037] Working principle: The circuit board is connected and fixed by inserting the fixing rod 5 into the positioning holes opened at the four corners of the circuit board body 1, and then threading the threaded column 10 into the threaded groove 14. When the circuit board body 1 is in use, the heat generated by the circuit board body 1 during operation can be absorbed by the provided thermal conductive silicone grease 15, and the heat can be transferred to the heat sink 2. The heat sink 2 can quickly conduct the heat, thereby effectively reducing the temperature of the circuit board body 1. The provided heat dissipation holes 3 can be used to improve the overall heat dissipation performance of the heat sink 2. The circuit board body 1 is made of ceramic material through the base layer 6, the first reinforcement layer 7 is made of polyimide material, the second reinforcement layer 8 is made of epoxy phenolic paint, and the protective layer 9 is made of lacquer phenol resin paint, thereby effectively improving the overall corrosion resistance and heat resistance of the circuit board, as well as the service life.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrosion-resistant and long-life circuit board, comprising a circuit board body (1) and a fixing plate (4), characterized in that: A heat dissipation plate (2) is fixedly arranged on the upper end of the fixing plate (4), a plurality of heat dissipation holes (3) are provided around the heat dissipation plate (2), and a thermal conductive silicone grease (15) is fixedly arranged on the lower end of the circuit board body (1); The circuit board body (1) comprises a base layer (6), a first reinforcement layer (7) is fixedly provided on the outer surface of the base layer (6), a second reinforcement layer (8) is fixedly provided on the outer surface of the first reinforcement layer (7), and a protective layer (9) is fixedly provided on the outer surface of the second reinforcement layer (8).

2. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: The circuit board body (1) comprises a first circuit board (101), a second circuit board (102) is glued and fixed to the lower end of the first circuit board (101), and a third circuit board (103) is glued and fixed to the lower end of the second circuit board (102).

3. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: Fixed rods (5) are movably arranged at the four corners of the upper end of the circuit board body (1), threaded columns (10) are fixedly arranged at the middle positions of the lower ends of the four fixed rods (5), and fixed blocks (11) are fixedly arranged on both sides of the lower ends of the four fixed rods (5).

4. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: Springs (13) are fixedly arranged on both sides of the four corners inside the fixed plate (4), and moving blocks (12) are fixedly arranged on the upper ends of the eight springs (13).

5. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: The fixing plate (4) is fixedly provided with thread grooves (14) at the middle positions of the four corners inside, and the four thread grooves (14) are threadedly sleeved with threaded columns (10) inside.

6. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: The base layer (6) is made of ceramic material, and the first reinforcement layer (7) is made of polyimide material.

7. The corrosion-resistant and long-life circuit board according to claim 1, characterized in that: The second reinforcement layer (8) is made of epoxy phenolic paint, and the protective layer (9) is made of lacquer phenol resin paint.

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