CN216600210U

CN216600210U - Waterproof type printed wiring board

Info

Publication number: CN216600210U
Application number: CN202123109302.7U
Authority: CN
Inventors: 彭华成
Original assignee: Guangzhou Bojin Electronic Technology Co ltd
Current assignee: Guangzhou Bojin Electronic Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-24
Anticipated expiration: 2031-12-13

Abstract

The utility model provides a waterproof printed circuit board which comprises a bottom plate, wherein the top of the bottom plate is coaxially and fixedly connected with a first supporting flange; a sealing cover plate is arranged above the bottom plate, one side of the sealing cover plate close to the bottom plate is fixedly connected with a second supporting flange, and the second supporting flange is positioned right above the first supporting flange and has the same size; the top of bottom plate is connected with a plurality of support archs perpendicularly, fixedly connected with a plurality of connection lugs on the lateral wall of sealed apron, and connection lug is located and supports bellied directly over and just both quantity equals, passes through bolted connection between the support arch of corresponding position department, the connection lug. Compared with the prior art, the utility model has good waterproof effect on the circuit board, and can quickly dissipate heat of the circuit board, thereby ensuring the integrity and stability of the internal structure of the circuit board.

Description

Waterproof type printed wiring board

Technical Field

The utility model belongs to the technical field of circuit boards, and particularly relates to a waterproof printed circuit board.

Background

The circuit board is also called as a flexible circuit board, and is a circuit board made of polyimide, wherein the circuit board has the characteristics of high wiring density, light weight, thin thickness and good bending property, the circuit board is the most active industry in the modern electronic component industry, along with the high-speed development of electronic technology, the requirements on electronic products are higher and higher, the functions are more and more, the integration level of chips is higher and higher, and in contrast to the high-speed development of the electronic technology, the design requirements on the circuit board are higher and higher. The existing circuit board cannot carry out waterproof protection on the inside of the circuit board, so that the influence of external moisture on the integrity of the internal structure of the circuit board is caused, and meanwhile, the heat dissipation performance of the existing circuit board is poor, so that the internal temperature of the circuit board is high, and the stability of the internal structure of the circuit board is influenced. Therefore, we propose a waterproof printed wiring board.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a waterproof printed circuit board.

The technical scheme of the utility model is realized as follows:

a waterproof printed circuit board comprises a bottom plate, wherein a first supporting flange is coaxially and fixedly connected to the top of the bottom plate, the top of the bottom plate is connected with a circuit board, the circuit board is located in the first supporting flange, and a first sealing ring is coaxially connected to the top of the first supporting flange;

a sealing cover plate is arranged above the bottom plate, one side of the sealing cover plate close to the bottom plate is fixedly connected with a second supporting flange, and the second supporting flange is positioned right above the first supporting flange and has the same size;

the top of bottom plate is connected with a plurality of support archs perpendicularly, and is a plurality of support arch is the rectangle and distributes, a plurality of connection lugs of fixedly connected with on the lateral wall of sealed apron, connection lug is located and supports bellied directly over and both quantity equal, corresponds position department support arch, connect through bolted connection between the lug.

Preferably, the supporting protrusion is provided with a first screw hole in a penetrating manner, the connecting protrusion is provided with a second screw hole in a penetrating manner, and the bolt is connected in the second screw hole and the first screw hole in a penetrating manner.

Preferably, the top of the sealing cover plate is provided with a heat conduction groove, the heat conduction groove penetrates through the sealing cover plate, a heat conduction plate is connected in the heat conduction groove in a sealing manner, and the heat conduction plate is located right above the circuit board.

Preferably, the top equidistance of heat-conducting plate is connected with a plurality of fin, the top of fin is equipped with the recess, the recess is the arc recess of downwarping.

Preferably, the top of heat-conducting plate is equipped with the visor, the top at sealed apron is connected to the bottom of visor, two exhaust holes have been seted up to the tip of visor, exhaust hole internal connection has the exhaust fan.

Preferably, a sealing edge is connected between the bottom of the protective cover and the heat conducting groove, and the sealing edge seals the heat conducting groove.

Compared with the prior art, the sealing performance of the connection between the first supporting flange and the second supporting flange can be improved through the first sealing ring, so that a good waterproof effect is achieved for the circuit board, and the circuit board can be rapidly cooled through the heat conducting plate and the cooling fins, so that the circuit board is protected, and the service life of the circuit board can be prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a waterproof printed circuit board according to the present invention.

Fig. 2 is a connection diagram of a second support flange and a sealing cover plate of a waterproof printed wiring board according to the present invention.

In the figure: the heat-conducting plate comprises a bottom plate 1, a first supporting flange 2, a first sealing ring 3, a supporting bulge 4, an air exhaust hole 5, a protective cover 6, a groove 7, a sealing edge 8, a connecting bump 9, a sealing cover plate 10, a heat-conducting plate 11, a heat-conducting groove 12, a radiating fin 13, a second screw hole 14, a first screw hole 15 and a second supporting flange 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a waterproof type printed wiring board, includes bottom plate 1, the first supporting flange 2 of the coaxial fixedly connected with in top of bottom plate 1, the top connecting line board of bottom plate 1, and the circuit board is located first supporting flange 2, and the top coaxial coupling of first supporting flange 2 has first sealing washer 3, and the leakproofness at 2 tops of first supporting flange can be improved to first sealing washer 3 of setting.

A sealing cover plate 10 is arranged above the bottom plate 1, one side, close to the bottom plate 1, of the sealing cover plate 10 is fixedly connected with a second supporting flange 16, the second supporting flange 16 is positioned right above the first supporting flange 2, the sizes of the second supporting flange 16 and the first supporting flange 2 are equal, and when the second supporting flange 16 and the first supporting flange 2 are abutted, the first sealing ring 3 positioned between the second supporting flange 16 and the first supporting flange 2 can be pressed, so that the sealing performance between the second supporting flange 16 and the first supporting flange 2 is ensured;

the top of bottom plate 1 is connected with a plurality of support archs 4 perpendicularly, a plurality of support archs 4 are the rectangle and distribute, a plurality of connection lugs 9 of fixedly connected with on the lateral wall of sealed apron 10, connection lug 9 is located and supports protruding 4 directly over and both quantity equal, support arch 4 of corresponding position department, connect through bolted connection between the lug 9, through the connection of bolt, make second support flange 16, can carry out stable connection between the first support flange 2, not only can be with the stable centre gripping of first sealing washer 3 at second support flange 16, between first support flange 2, simultaneously under the spring action of first sealing washer 3, still can improve second support flange 16, the stability of connecting between the first support flange 2.

Furthermore, a first screw hole 15 penetrates through the supporting protrusion 4, a second screw hole 14 penetrates through the connecting protrusion 9, and the bolt is connected in the second screw hole 14 and the first screw hole 15 in a penetrating manner, so that the bolt is conveniently connected to the connecting protrusion 9 and the supporting protrusion 4.

Furthermore, a heat conducting groove 12 is formed in the top of the sealing cover plate 10, the heat conducting groove 12 penetrates through the sealing cover plate 10, a heat conducting plate 11 is connected in the heat conducting groove 12 in a sealing mode, the heat conducting plate 11 is located right above the circuit board, and the heat conducting plate 11 can conduct heat dissipation on the top of the circuit board and protect the circuit board.

Further, the top of the heat conducting plate 11 is equidistantly connected with a plurality of radiating fins 13, the top of the radiating fins 13 is provided with a groove 7, and the groove 7 is an arc-shaped groove which is bent downwards.

Further, a protective cover 6 is arranged above the heat conducting plate 11, and the protective cover 6 and the edge of the sealing cover plate 10 are locked by a plurality of screws, as shown in fig. 1, screw holes at the edge of the protective cover 6 are shown;

the top at sealed apron 10 is connected to the bottom of visor 6, and two exhaust holes 5 have been seted up to the tip of visor 6, and 5 internal connection in exhaust hole have an exhaust fan, and the exhaust fan that sets up can blow the inside air of visor 6, has not only accelerated the flow of inside hot-air, and the while can be quick with the quick transport of inside hot-air to the outside, and then accelerated the heat dissipation.

Furthermore, a sealing edge 8 is connected between the bottom of the protective cover 6 and the heat conducting groove 12, and the sealing edge 8 seals the heat conducting groove 12, so that the sealing performance of the connection between the protective cover 6 and the top of the sealing cover plate 10 is ensured.

Specifically, the first support flange 2 arranged at the top of the bottom plate 1 and the second support flange 16 arranged at the bottom of the sealing cover plate 10 can extrude the first sealing ring 3, a circuit board placed at the top of the bottom plate 1 can be well waterproof under the sealing effect of the first sealing ring 3, and meanwhile, the heat conducting plate 11 and the radiating fins 13 arranged at the top of the sealing cover plate 10 can quickly radiate the circuit board, so that the service life of the circuit board can be prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A waterproof printed circuit board comprises a bottom plate (1), and is characterized in that a first supporting flange (2) is coaxially and fixedly connected to the top of the bottom plate (1), the top of the bottom plate (1) is connected with a circuit board, the circuit board is positioned in the first supporting flange (2), and a first sealing ring (3) is coaxially connected to the top of the first supporting flange (2);

a sealing cover plate (10) is arranged above the bottom plate (1), one side, close to the bottom plate (1), of the sealing cover plate (10) is fixedly connected with a second supporting flange (16), the second supporting flange (16) is located right above the first supporting flange (2), and the sizes of the second supporting flange and the first supporting flange are equal;

the top of bottom plate (1) is connected with a plurality of support arch (4) perpendicularly, and is a plurality of support arch (4) are the rectangle and distribute, a plurality of connection lug (9) of fixedly connected with on the lateral wall of sealed apron (10), connection lug (9) are located support arch (4) directly over and both quantity equal, correspond position department support through bolted connection between arch (4), connection lug (9).

2. The waterproof printed wiring board of claim 1, wherein the supporting protrusion (4) is provided with a first screw hole (15) in a penetrating manner, the connecting protrusion (9) is provided with a second screw hole (14) in a penetrating manner, and the bolt is connected in the second screw hole (14) and the first screw hole (15) in a penetrating manner.

3. The waterproof printed circuit board according to claim 1, wherein a heat conducting groove (12) is formed in the top of the sealing cover plate (10), the heat conducting groove (12) is formed through the sealing cover plate (10), a heat conducting plate (11) is hermetically connected in the heat conducting groove (12), and the heat conducting plate (11) is located right above the circuit board.

4. A waterproof printed wiring board according to claim 3, wherein a plurality of heat dissipating fins (13) are equidistantly connected to the top of the heat conducting plate (11), a groove (7) is formed in the top of each heat dissipating fin (13), and the groove (7) is an arc-shaped groove which is bent downwards.

5. The waterproof printed circuit board according to claim 3, wherein a protective cover (6) is arranged above the heat conducting plate (11), the bottom of the protective cover (6) is connected to the top of the sealing cover plate (10), two air exhaust holes (5) are formed in the end portion of the protective cover (6), and an exhaust fan is connected to the inside of each air exhaust hole (5).

6. A waterproof printed wiring board according to claim 5, wherein a sealing edge (8) is connected between the bottom of the protective cover (6) and the heat conducting groove (12), and the sealing edge (8) seals the heat conducting groove (12).