CN216391520U

CN216391520U - Dustproof circuit board

Info

Publication number: CN216391520U
Application number: CN202122831279.6U
Authority: CN
Inventors: 陈凯
Original assignee: Dongguan Naipu Circuit Technology Co ltd
Current assignee: Dongguan Naipu Circuit Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-26
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a dustproof circuit board which comprises a damp-proof plate, wherein four corners of the upper end of the damp-proof plate are provided with connecting holes which are communicated up and down, the upper end of the damp-proof plate is fixedly provided with a limiting frame, the limiting frame is of a U-shaped structure, the upper part of the left end of the damp-proof plate is fixedly provided with an installation block, the left end of the installation block is provided with two installation holes which are communicated left and right, the two installation holes are symmetrically distributed front and back, axial fans are fixedly arranged in the two installation holes, and the outer surface of the installation block and the upper end of the damp-proof plate are provided with a dustproof cover together. According to the dustproof circuit board, the dustproof cover, the mounting block and the dampproof plate are arranged to form a relatively closed space, the circuit board body is placed in the closed space, the dustproof circuit board not only has a dustproof function, but also has the heat dissipation function of the circuit board body, and the axial flow fan is arranged to extract air flow in the dustproof cover, so that the dustproof capacity and the heat dissipation capacity of the circuit board body are further improved.

Description

Dustproof circuit board

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a dustproof circuit board.

Background

The circuit board is the most active industry in the modern electronic component industry, and the industry growth speed of the circuit board is generally higher than that of the electronic component industry by about 3 percent. The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout.

The prior circuit board has the following disadvantages: 1. most of the existing circuit boards do not have dustproof capability, if too much dust is accumulated, the use of the circuit boards is influenced, even the circuit boards are short-circuited, and the service life of the circuit boards is influenced; 2. most of the existing circuit boards do not have active heat dissipation capability, so that the heat dissipation effect of the circuit boards is poor, and the use requirements of the circuit boards are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a dustproof circuit board which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a dustproof circuit board comprises a damp-proof board, wherein four corners of the upper end of the damp-proof board are respectively provided with a connecting hole which is communicated from top to bottom, the upper end of the damp-proof board is fixedly provided with a limiting frame, the limiting frame is of a U-shaped structure, the upper part of the left end of the damp-proof board is fixedly provided with an installation block, the left end of the installation block is provided with two installation holes which are communicated from left to right, the two installation holes are symmetrically distributed from front to back, an axial fan is fixedly installed in each installation hole, the outer surface of the installation block and the upper end of the damp-proof board are both provided with a dustproof cover, the left part of the outer surface of the dustproof cover is provided with a first screw hole, the first screw is in threaded connection with the first screw hole, the upper end of the damp-proof board is provided with four supporting components which are distributed in a rectangular array, the four supporting components are all positioned in the dustproof cover, and the upper ends of the four supporting components are both provided with a circuit board body, the four corners of the upper end of the circuit board body are provided with second screws, and the four second screws respectively extend into the four supporting assemblies.

Preferably, the supporting component comprises a supporting block, a rectangular groove is formed in the upper end of the supporting block, a cushion pad is fixedly mounted on the side wall of the rectangular groove, and a second screw hole is formed in the lower wall of the rectangular groove.

Preferably, the buffer pad is of an L-shaped structure, and the buffer pad is matched with the corner of the circuit board body.

Preferably, the second screw is in threaded insertion connection with the second screw hole.

Preferably, the outer surface of the dust cover is in close contact with the inner wall of the limiting frame.

Preferably, a gap exists between the circuit board body and the dust cover.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the dustproof circuit board, the dustproof dust cover, the mounting block and the damp-proof plate are arranged to form a relatively closed space, the circuit board body is placed in the closed space, the dust cover is provided with the leakage hole with the aperture of 100 micrometers, and the dust in the environment is about 500 micrometers in diameter, so that the dustproof dust cover not only has a dustproof function, but also has the heat dissipation function of the circuit board body, the limiting frame is arranged to block a gap between the dust cover and the damp-proof plate, and finally the axial flow fan is arranged to extract air flow in the dustproof dust cover, so that the dustproof capability of the circuit board body is further improved, and the service life of the circuit board is prolonged;

2. according to the dustproof circuit board, the four supporting blocks are arranged to make the circuit board body overhead, so that the contact area between the circuit board body and air is increased, the axial flow fan is arranged to extract air in the dustproof cover, the heat exchange speed between the circuit board body and the air is improved, the use requirement of the circuit board is met, the supporting blocks are prevented from damaging the edge part of the circuit board body by the aid of the buffering cushion, and the practicability of the dustproof circuit board is improved.

Drawings

FIG. 1 is a schematic view of an overall structure of a dustproof circuit board according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a dustproof circuit board according to the present invention;

FIG. 3 is a schematic view of the overall structure of a support assembly for a dust-protected circuit board according to the present invention;

fig. 4 is a schematic partial structure diagram of a dustproof circuit board according to the present invention.

In the figure: 1. a moisture-proof plate; 2. connecting holes; 3. a limiting frame; 4. a dust cover; 5. mounting blocks; 6. mounting holes; 7. an axial flow fan; 8. a first screw; 9. a first screw hole; 10. a support assembly; 11. a circuit board body; 12. a second screw; 21. a support block; 22. a rectangular groove; 23. a cushion pad; 24. and a second screw hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIGS. 1-4, a dustproof circuit board comprises a damp-proof board 1, four corners of the upper end of the damp-proof board 1 are respectively provided with a connecting hole 2 which is communicated up and down, the upper end of the damp-proof board 1 is fixedly provided with a limiting frame 3, the limiting frame 3 is of a U-shaped structure, the upper part of the left end of the damp-proof board 1 is fixedly provided with a mounting block 5, the left end of the mounting block 5 is provided with two mounting holes 6 which are communicated left and right, the two mounting holes 6 are symmetrically distributed front and back, an axial fan 7 is fixedly mounted in the two mounting holes 6, the outer surface of the mounting block 5 and the upper end of the damp-proof board 1 are jointly provided with a dust cover 4, the left part of the outer surface of the dust cover 4 is provided with a first screw 8, the outer surface of the mounting block 5 is provided with a first screw hole 9, the first screw 8 is in threaded connection with the first screw hole 9, the upper end of the damp-proof board 1 is provided with four supporting components 10, the four supporting components 10 are distributed in a rectangular array, and the four supporting components 10 are all located in the dust cover 4, the upper ends of the four supporting components 10 are provided with a circuit board body 11, four corners of the upper end of the circuit board body 11 are provided with second screws 12, and the four second screws 12 extend into the four supporting components 10 respectively.

The supporting component 10 comprises a supporting block 21, a rectangular groove 22 is formed in the upper end of the supporting block 21, a cushion pad 23 is fixedly mounted on the side wall of the rectangular groove 22, a second screw hole 24 is formed in the lower wall of the rectangular groove 22, the circuit board body 11 is overhead through the supporting block 21, and the contact area of the circuit board body 11 and air is increased.

The buffer pads 23 are of an L-shaped structure, the buffer pads 23 are matched with the corners of the circuit board body 11, and the support blocks 21 are prevented from damaging the edge part of the circuit board body 11 by arranging the buffer pads 23.

The second screw 12 is threaded through the second screw hole 24, and the circuit board body 11 is fixed on the supporting block 21 by the second screw 12.

The outer surface of the dust cover 4 is in close contact with the inner wall of the limiting frame 3, the gap between the dust cover 4 and the damp-proof plate 1 is reduced by arranging the limiting frame 3, and the aperture of a leak hole in the dust cover 4 is 100 micrometers.

A gap exists between the circuit board body 11 and the dust cover 4.

It should be noted that, the utility model is a dustproof circuit board, a relatively closed space is formed by arranging the dust cover 4, the mounting block 5 and the damp-proof board 1, and the circuit board body 11 is placed in the closed space, because the dust cover 4 is provided with the leak hole with the aperture of 100 microns, and the dust diameter in the environment is about 500 microns, therefore, the dust cover 4 not only has the dustproof function, but also has the heat radiation of the circuit board body 11, then the spacing frame 3 is arranged to block the gap between the dust cover 4 and the damp-proof board 1, finally the air flow in the dust cover 4 is extracted by arranging the axial flow fan 7, the dustproof capability of the circuit board body 11 is further improved, the service life of the circuit board is prolonged, firstly, the circuit board body 11 is erected by arranging the four supporting blocks 21, the contact area between the circuit board body 11 and the air is increased, then the air in the dust cover 4 is extracted by arranging the axial flow fan 7, the heat exchange speed between the circuit board body 11 and the air is improved, the use requirement of the circuit board is met, the cushion pad 23 is arranged to prevent the supporting block 21 from damaging the edge part of the circuit board body 11, and the practicability of the utility model is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a dirt-proof circuit board, includes dampproofing board (1), its characterized in that: the damp-proof board is characterized in that four corners of the upper end of the damp-proof board (1) are provided with connecting holes (2) which are communicated up and down, the upper end of the damp-proof board (1) is fixedly provided with a limiting frame (3), the limiting frame (3) is of a U-shaped structure, the upper part of the left end of the damp-proof board (1) is fixedly provided with an installation block (5), the left end of the installation block (5) is provided with two installation holes (6) which are communicated left and right, the two installation holes (6) are symmetrically distributed front and back, axial fans (7) are fixedly installed in the two installation holes (6), the outer surface of the installation block (5) and the upper end of the damp-proof board (1) are jointly provided with a dust cover (4), the left part of the outer surface of the dust cover (4) is provided with first screws (8), the outer surface of the installation block (5) is provided with first screw holes (9), the first screws (8) are in threaded connection with the first screw holes (9), and the upper end of the damp-proof board (1) is provided with four supporting components (10), four supporting component (10) are the rectangular array and distribute, four supporting component (10) all are located dust cover (4), four supporting component (10) upper end is provided with circuit board body (11) jointly, circuit board body (11) upper end four corners all is provided with second screw (12), four second screw (12) extend respectively to four supporting component (10) in.

2. The dustproof circuit board of claim 1, wherein: the supporting component (10) comprises a supporting block (21), a rectangular groove (22) is formed in the upper end of the supporting block (21), a cushion pad (23) is fixedly mounted on the side wall of the rectangular groove (22), and a second screw hole (24) is formed in the lower wall of the rectangular groove (22).

3. A dust-proof circuit board according to claim 2, characterized in that: the buffer pad (23) is of an L-shaped structure, and the corner of the buffer pad (23) is matched with the corner of the circuit board body (11).

4. A dust-proof circuit board according to claim 3, wherein: the second screw (12) is in threaded penetrating connection with the second screw hole (24).

5. The dustproof circuit board of claim 1, wherein: the outer surface of the dust cover (4) is in close contact with the inner wall of the limiting frame (3).

6. The dustproof circuit board of claim 1, wherein: a gap exists between the circuit board body (11) and the dust cover (4).