Waterproof flexible circuit board

Abstract

The utility model discloses a waterproof flexible circuit board which comprises a circuit board body, a gasket is installed on one side of the circuit board body, a protection structure is installed on one side of the gasket and comprises a waterproof layer, an anti-corrosion layer, a waterproof breathable film and a curing layer, the waterproof layer is installed on one side of the gasket, and a heat dissipation structure is installed at the top end of the circuit board body. One end of the circuit board body is provided with a slot, and one end of the slot is provided with an anti-vibration gasket. The radiating fins are fixed on the circuit board main body by screws through the fixing feet, the aging process of the circuit board is accelerated as the power consumption of the circuit board is continuously increased and the generated heat is more and more in the using process of the circuit board, but the radiating fins are generally made of aluminum alloy or copper alloy and are directly carried on the circuit board, so that the radiating fins are not easy to damage. Therefore, the temperature of the circuit board can be kept stable through the heat conducted out of the circuit board, and the purpose that the waterproof flexible circuit board dissipates heat for the circuit board is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a waterproof flexible circuit board. Background Art

[0002] Circuit board, also known as printed circuit board, is one of the most important components of electronic products. It prints circuit patterns on the surface of insulating materials and installs components to connect circuits together, thereby realizing the functions of electronic products, managing power supply for electronic equipment, and is a very important component of electronic products. It realizes circuit connection through printed circuit technology and installation of components. Circuit board has the advantages of high reliability, compact structure, automated manufacturing and repeatable production. It has become an indispensable part of modern electronic products. Therefore, a waterproof flexible circuit board is needed.

[0003] To this end, China applied for a patent number of CN203492265U, which discloses a shock-resistant circuit board, which belongs to the field of electrical technology and includes a circuit board, a shock-absorbing plate, a spring, a silicone block and a rubber block. The shock-absorbing plate, spring, silicone block and rubber block are installed in sequence under the four corners of the circuit board. The circuit board is provided with a multi-layer shock-absorbing facility with good shock-absorbing effect, which improves the performance of the circuit board, reduces the occurrence of failures, and will greatly increase the service life of the marine circuit board.

[0004] The above-mentioned prior art circuit board is equipped with multi-layer shock-absorbing facilities, which has good shock-absorbing effect, improves the performance of the circuit board, reduces the occurrence of failures, and will greatly increase the service life of the marine circuit board. However, the circuit board will generate a lot of heat during long-term work. If the heat is not discharged in time, it is easy to cause aging of the inside of the circuit board, thereby reducing the service life of the circuit board. Utility Model Content

[0005] The utility model aims to provide a waterproof flexible circuit board to solve the defect that the existing circuit board will generate a lot of heat during long-term operation. If the heat is not discharged in time, it is easy to cause the inside of the circuit board to age, thereby reducing the service life of the circuit board.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a waterproof flexible circuit board, comprising a circuit board body;

[0007] A gasket is installed on one side of the circuit board body, a protective structure is installed on one side of the gasket, the protective structure includes a waterproof layer, an anti-corrosion layer, a waterproof breathable membrane and a curing layer, and the waterproof layer is installed on one side of the gasket;

[0008] A heat dissipation structure is installed at the top of the circuit board body, a heat dissipation hole is installed at one end of the heat dissipation structure, and a splicing structure is installed at one side of the gasket;

[0009] A module is installed on the top of the circuit board, an anti-vibration strip is installed on the top of the circuit board, a hole groove is installed at one end of the circuit board body, and an anti-vibration gasket is installed at one end of the hole groove.

[0010] When in use, first fix the heat sink to the circuit board body with screws through the fixing feet. As the circuit board is in use, its power consumption continues to increase, and at the same time, more and more heat is generated, which accelerates the aging process of the circuit board. The heat sink is usually made of aluminum alloy or copper alloy and is directly mounted on the circuit board. It can quickly release the heat conducted from the circuit board into the air to keep the temperature of the circuit board stable.

[0011] Preferably, a snap-fit ​​block is provided on one side of the circuit board body, a snap-fit ​​groove is provided on one end of the splicing structure, and the gasket and the splicing structure constitute a snap-fit ​​structure, which is easy to disassemble.

[0012] Preferably, an anti-corrosion layer is installed on the top of the waterproof layer, and a waterproof breathable membrane is installed on the top of the waterproof layer, which can provide multifunctional protection for the circuit board body.

[0013] Preferably, the heat dissipation structure includes a heat sink, a fixing foot and a screw. The heat sink is installed on the top of the circuit board body, a fixing foot is installed on one side of the heat sink, and a screw is installed on one end of the fixing foot to dissipate heat from the heating plate.

[0014] Preferably, the inner wall of the fixing foot is provided with an internal thread, and the outer wall of the screw is provided with an external thread. The fixing foot and the screw form a threaded connection, and the fixing foot can be fixed by tightening the screw.

[0015] Preferably, the splicing structure includes a cover plate, a clamping hole and a joint, the cover plate is installed on one side of the gasket, one end of the cover plate is installed with a clamping hole, and one side of the clamping hole is installed with a joint, so that the splicing plate can be easily disassembled.

[0016] Preferably, a joint is installed on one side of the clamping hole, and the joints are arranged at equal intervals on one side of the clamping hole, and the joint and the clamping hole can be spliced.

[0017] The waterproof flexible circuit board provided by the utility model has the advantages that: the heat sink is fixed to the circuit board body by screws through the fixing feet. As the circuit board is used, its power consumption is continuously increased, and the heat generated is also increasing, which accelerates the aging process of the circuit board. The heat sink is usually made of aluminum alloy or copper alloy and is directly mounted on the circuit board. The heat conducted by the circuit board can be quickly released into the air to keep the temperature of the circuit board stable, thereby achieving the purpose of heat dissipation of the circuit board by the waterproof flexible circuit board.

[0018] By laying a waterproof layer inside the circuit board body, the waterproof layer can prevent moisture from invading the inside of the circuit board as much as possible, delay the aging of the circuit board body, and extend the service life of the circuit board body. At the same time, the curing layer can prevent water or oil from entering the inside of the circuit board as much as possible, and an anti-corrosion layer is arranged on the top of the waterproof layer to further prevent the circuit board from being corroded as much as possible, thereby extending the service life of the circuit board, thereby achieving the purpose of waterproofing the circuit board with a waterproof flexible circuit board;

[0019] A cover plate is provided at one end of the circuit board body, a fixed card slot is opened at one end of the cover plate, four card holes are symmetrically opened in the fixed card slot, four connectors are symmetrically fixed on both sides of the circuit board body, and are inserted into the square interface on the outside of the transition block. The four connectors are inserted along the four card holes on the inside of the cover plate, and another assembled circuit board is also inserted. Through the conductivity of the metal connector, the half points can be spliced, so as to achieve the purpose of convenient splicing of a waterproof soft circuit board to a circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0022] Figure 3 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the splicing structure of the utility model;

[0024] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the protective structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. Circuit board body; 2. Gasket; 3. Protective structure; 301. Waterproof layer; 302. Anti-corrosion layer; 303. Waterproof and breathable membrane; 304. Curing layer; 4. Heat dissipation holes; 5. Heat dissipation structure; 501. Heat sink; 502. Fixed foot; 503. Screw; 6. Splicing structure; 601. Cover plate; 602. Card hole; 603. Connector; 7. Hole groove; 8. Anti-seismic gasket; 9. Module; 10. Anti-seismic strip. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 5 The utility model provides an embodiment: a waterproof flexible circuit board, including a circuit board body 1.

[0028] A gasket 2 is installed on one side of the circuit board body 1, a protective structure 3 is installed on one side of the gasket 2, a snap-fit ​​block is provided on one side of the gasket 2, a snap-fit ​​groove is provided at one end of the splicing structure 6, and the gasket 2 and the splicing structure 6 constitute a snap-fit ​​structure.

[0029] The protective structure 3 includes a waterproof layer 301, an anti-corrosion layer 302, a waterproof breathable membrane 303 and a solidified layer 304. The waterproof layer 301 is installed on one side of the gasket 2, the anti-corrosion layer 302 is installed on the top of the waterproof layer 301, and the solidified layer 304 is installed on the top of the waterproof layer 301.

[0030] Please refer to the attached Figure 1-2 As shown, a waterproof layer 301 is laid inside the circuit board body 1, and the waterproof layer 301 can prevent moisture from invading the inside of the circuit board as much as possible. At the same time, the solidified layer 304 can prevent water or oil from invading the inside of the circuit board as much as possible, and an anti-corrosion layer 302 is provided on the top of the waterproof layer 301 to further prevent the circuit board from being corroded as much as possible, thereby extending its service life.

[0031] A heat dissipation structure 5 is installed at the top of the circuit board body 1, and the heat dissipation structure 5 includes a heat sink 501, a fixing foot 502 and a screw 503. The heat sink 501 is installed at the top of the circuit board body 1, and a fixing foot 502 is installed on one side of the heat sink 501. The inner wall of the fixing foot 502 is provided with an internal thread, and the outer wall of the screw 503 is provided with an external thread. The fixing foot 502 and the screw 503 form a threaded connection, and a screw 503 is installed at one end of the fixing foot 502.

[0032] Please refer to the attached Figure 1-2 and attached Figure 3 As shown, the heat sink 501 is fixed to the circuit board body 1 by means of screws 503 through fixing feet 502. As the circuit board is used, its power consumption continues to increase, and at the same time, more and more heat is generated, which accelerates the aging process of the circuit board. The heat sink 501 is usually made of aluminum alloy or copper alloy and is directly mounted on the circuit board. It can quickly release the heat conducted from the circuit board into the air to keep the temperature of the circuit board stable.

[0033] A heat dissipation hole 4 is installed at one end of the heat dissipation structure 5, a splicing structure 6 is installed at one side of the gasket 2, the splicing structure 6 includes a cover plate 601, a card hole 602 and a joint 603, the cover plate 601 is installed on one side of the gasket 2, a card hole 602 is installed at one end of the cover plate 601, a joint 603 is installed on one side of the card hole 602, the joints 603 are arranged at equal intervals on one side of the card hole 602, and a joint 603 is installed on one side of the card hole 602.

[0034] Please refer to the attached Figure 1-2 As shown, a cover plate 601 is provided at one end of the circuit board body 1, a fixed slot is opened at one end of the cover plate 601, four holes 602 are symmetrically opened in the fixed slot, four connectors 603 are symmetrically fixed on both sides of the circuit board body 1, and are inserted into the square interface on the outside of the transition block. The four connectors 603 are inserted along the four holes 602 on the inside of the cover plate 601, and another assembled circuit board is also inserted. Through the conductivity of the metal connector 603, the half points can be spliced.

[0035] A module 9 is installed at the top of the circuit board body 1 , an anti-vibration bar 10 is installed at the top of the circuit board body 1 , a hole slot 7 is installed at one end of the circuit board body 1 , and an anti-vibration gasket 8 is installed at one end of the hole slot 7 .

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A waterproof flexible circuit board, comprising a circuit board body (1); Features: A gasket (2) is installed on one side of the circuit board body (1); a protective structure (3) is installed on one side of the gasket (2); the protective structure (3) comprises a waterproof layer (301), an anti-corrosion layer (302), a waterproof breathable membrane (303) and a solidified layer (304); and the waterproof layer (301) is installed on one side of the gasket (2); A heat dissipation structure (5) is installed at the top of the circuit board body (1), a heat dissipation hole (4) is installed at one end of the heat dissipation structure (5), and a splicing structure (6) is installed at one side of the gasket (2); A module (9) is installed at the top of the circuit board body (1), an anti-vibration strip (10) is installed at the top of the circuit board body (1), a hole groove (7) is installed at one end of the circuit board body (1), and an anti-vibration gasket (8) is installed at one end of the hole groove (7).

2. A waterproof flexible circuit board according to claim 1, characterized in that: A snap-fit ​​block is provided on one side of the gasket (2), a snap-fit ​​groove is provided on one end of the splicing structure (6), and the gasket (2) and the splicing structure (6) form a snap-fit ​​structure.

3. The waterproof flexible circuit board according to claim 1, characterized in that: An anti-corrosion layer (302) is installed on the top of the waterproof layer (301), and a curing layer (304) is installed on the top of the waterproof layer (301).

4. The waterproof flexible circuit board according to claim 1, characterized in that: The heat dissipation structure (5) comprises a heat sink (501), a fixing foot (502) and a screw (503); the heat sink (501) is mounted on the top of a mounting circuit board body (1); a fixing foot (502) is mounted on one side of the heat sink (501); and a screw (503) is mounted on one end of the fixing foot (502).

5. A waterproof flexible circuit board according to claim 4, characterized in that: The inner wall of the fixing foot (502) is provided with an internal thread, and the outer wall of the screw (503) is provided with an external thread, and the fixing foot (502) and the screw (503) form a threaded connection.

6. The waterproof flexible circuit board according to claim 1, characterized in that: The splicing structure (6) comprises a cover plate (601), a clamping hole (602) and a joint (603); the cover plate (601) is mounted on one side of the gasket (2); one end of the cover plate (601) is mounted with the clamping hole (602); and one side of the clamping hole (602) is mounted with the joint (603).

7. A waterproof flexible circuit board according to claim 6, characterized in that: A connector (603) is installed on one side of the clamping hole (602), and the connectors (603) are arranged at equal intervals on one side of the clamping hole (602).

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