CN218302056U

CN218302056U - Novel heat dissipation circuit board

Info

Publication number: CN218302056U
Application number: CN202222550657.8U
Authority: CN
Inventors: 吴洪斌
Original assignee: Guangzhou Zhichuan Electronics Co ltd
Current assignee: Guangzhou Zhichuan Electronics Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-01-13
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a novel heat dissipation circuit board, including mounting box and circuit board, the mounting box top is provided with the heat dissipation box, the top of heat dissipation box is provided with dustproof subassembly, the first joint board of the equal fixedly connected with in both sides of heat dissipation box, the equal fixedly connected with second joint board in both sides of mounting box, two the bolt has all been pegged graft to the inside of first joint board, and its and second joint board threaded connection, the inside of heat dissipation box is provided with radiator unit, the interior roof fixedly connected with exhaust fan of heat dissipation box, and the corresponding louvre of exhaust fan has been seted up at the top of its heat dissipation box. This novel heat dissipation circuit board can effectually prevent that the dust from getting into through filter screen among the dustproof subassembly, and the filter screen is dismantled and assembled, through the pull rod, makes the stock remove the restriction to the joint piece, can take the filter screen out, if need install, can stimulate the pull rod once more, with the filter screen plug-in to the inside of first fixed block, it can to loosen the pull rod.

Description

Novel heat dissipation circuit board

Technical Field

The utility model relates to a circuit board product technical field specifically is a novel heat dissipation circuit board.

Background

The circuit board is named as a ceramic circuit board, an alumina ceramic circuit board, an aluminum nitride ceramic circuit board, a PCB (printed circuit board), an aluminum substrate, a high-frequency board, a thick copper board, an impedance board, a PCB, an ultrathin circuit board, a printed circuit board and the like, 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 electrical appliance layout, and the circuit board can be called as a printed circuit board or a printed circuit board.

The utility model discloses a grant utility model patent that bulletin number is CN 217283527U discloses a heat dissipation circuit board, circuit board main part during operation, the heat of radiating piece can absorb the base plate fast, transmit air passage with the heat fast, outside air can get into air passage from the side of base, the heat absorption characteristic of radiating piece utilization heat-absorbing film, shift the heat, absorptive heat guide is handled to the heat-absorbing shell on the heat-absorbing film, the heat-absorbing shell transmits the heat dissipation layer to the heat dissipation layer, dispel the heat through the heat dissipation layer afterwards, first thermovent improves the surface area on heat dissipation layer, improve the radiating efficiency, but the device can't prevent on the dust gets into the circuit board, can get into the circuit board from the air passage who offers, and the device heat dispersion is not good.

Disclosure of Invention

An object of the utility model is to provide a novel heat dissipation circuit board to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a novel heat dissipation circuit board, includes mounting box and circuit board, the mounting box top is provided with the heat dissipation box, the top of heat dissipation box is provided with dustproof subassembly, the first joint board of the equal fixedly connected with in both sides of heat dissipation box, the equal fixedly connected with second joint board in both sides of mounting box, two the bolt has all been pegged graft to the inside of first joint board, and its and second joint board threaded connection, the inside of heat dissipation box is provided with radiator unit, the interior roof fixedly connected with exhaust fan of heat dissipation box, and the corresponding louvre of exhaust fan has been seted up at the top of its heat dissipation box.

The dustproof assembly comprises a filter screen, one end of the filter screen is provided with a first fixed block, and the other end of the filter screen is fixedly connected with a joint block, the outside of the joint block is provided with a second fixed block, one side of the second fixed block is fixedly connected with an insertion block, the insertion block is located above the joint block, a pull rod is arranged inside the insertion block, a spring is sleeved outside the pull rod, the one end of the pull rod is fixedly connected with a spring abutting contact plate, the inner top wall of the insertion block at one end of the pull rod extends to the outside, and the spring abutting contact plate keeps away from one side of the pull rod fixedly connected with a long rod.

Preferably: the inside of first fixed block is pegged graft with the one end of filter screen, the joint piece is kept away from the one end of filter screen and is pegged graft and extend to the outside with the inside of second fixed block, the one end of spring and the interior roof fixed connection of grafting piece, and the other end and the interior bottom wall fixed connection of grafting piece, the stock runs through the grafting piece and extends to the outside and pegs graft with the inside of joint piece, the bottom of first fixed block and second fixed block all with heat dissipation box fixed connection.

Preferably: the radiating assembly comprises a heat-conducting silica gel sheet, the top of the heat-conducting silica gel sheet is fixedly connected with a heat-conducting plate, and the top of the heat-conducting plate is fixedly connected with a plurality of radiating fins.

Preferably, the following components: the both sides of heat conduction silica gel piece and heat-conducting plate all with the inside wall fixed connection of heat dissipation box, the bottom of heat conduction silica gel piece corresponds with the top of circuit board.

Preferably, the following components: the inner bottom wall of the mounting box is fixedly connected with a rubber insulating pad, the circuit board is inserted into the rubber insulating pad, and the inside of the heat dissipation hole corresponds to the filter screen.

Preferably: the heat dissipation box is installed on the mounting box through the bolts of the first clamping plates on the two sides in an inserted mode.

Compared with the prior art, the utility model discloses a novel heat dissipation circuit board, filter screen through in the dustproof subassembly can effectually prevent that the dust from getting into, and the filter screen is dismantled and assembled, only need to pass through the pull rod, make the stock remove the restriction to the joint piece, can take the filter screen out, if need install, can stimulate the pull rod once more, plug-in connect the filter screen to the inside of first fixed block, loosen the pull rod can, the effectual life who strengthens the filter screen, and use through the cooperation of radiator unit and exhaust fan, effectual improvement is to circuit board radiating effect, it can't prevent the dust to get into on the circuit board to have solved current device, can get into the circuit board from the air passage who sets up, the not good problem of current device radiating effect has been solved simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a novel heat dissipation circuit board.

Fig. 2 is a schematic structural diagram of a dust-proof assembly in the novel heat dissipation circuit board.

Fig. 3 is a schematic structural diagram of a heat dissipation assembly in the novel heat dissipation circuit board.

Fig. 4 is an external view of the novel heat dissipation circuit board.

In the figure: 1. mounting a box; 2. a circuit board; 3. a heat dissipation box; 4. a dust-proof assembly; 401. a filter screen; 402. a first fixed block; 403. a clamping block; 404. a second fixed block; 405. an insertion block; 406. a pull rod; 407. a spring; 408. the spring is abutted against the plate; 409. a long rod; 5. a first clamping plate; 6. a second clamping plate; 7. a bolt; 8. a heat dissipating component; 801. a heat-conducting silica gel sheet; 802. a heat conducting plate; 803. heat dissipation fins; 9. heat dissipation holes; 10. an exhaust fan; 11. a rubber insulating pad.

Detailed Description

The technical solution of the present patent will be further described in detail with reference to the following embodiments.

Referring to fig. 1-4, a novel heat dissipation circuit board includes a mounting box 1 and a circuit board 2, the mounting box 1 is hollow, the top of the mounting box 1 is open, a heat dissipation box 3 is disposed above the mounting box 1, a dust-proof assembly 4 is disposed on the top of the heat dissipation box 3, first fastening plates 5 are fixedly connected to both sides of the heat dissipation box 3, second fastening plates 6 are fixedly connected to both sides of the mounting box 1, bolts 7 are inserted into both the first fastening plates 5, and are in threaded connection with the second fastening plates 6, a heat dissipation assembly 8 is disposed inside the heat dissipation box 3, the heat dissipation box 3 is hollow, the bottom of the heat dissipation box is open and corresponds to the mounting box 1, the heat dissipation assembly 8 is disposed inside the heat dissipation box 3, an exhaust fan 10 is fixedly connected to the inner top wall of the heat dissipation box 3, and an exhaust hole 9 corresponding to the fan 10 is disposed on the top of the heat dissipation box 3.

Dustproof component 4 includes filter screen 401, the one end of filter screen 401 is provided with first fixed block 402, and its other end fixedly connected with joint piece 403, the outside of joint piece 403 is provided with second fixed block 404, one side fixedly connected with insertion block 405 of second fixed block 404, and it is located the top of joint piece 403, the inside of insertion block 405 is provided with pull rod 406, the outside cover of pull rod 406 is equipped with spring 407, the one end fixedly connected with spring of pull rod 406 supports touch panel 408, and the interior roof that its one end runs through insertion block 405 extends to the outside, the spring supports touch panel 408 and keeps away from one side fixedly connected with stock 409 of pull rod 406.

It needs to be noted that, the inside of first fixed block 402 is pegged graft with the one end of filter screen 401, the one end that filter screen 401 was kept away from to joint piece 403 is pegged graft with the inside of second fixed block 404 and is extended to the outside, the one end of spring 407 and the interior roof fixed connection of grafting piece 405, and the other end and the interior bottom wall fixed connection of grafting piece 405, stock 409 runs through grafting piece 405 and extends to the outside and pegs graft with the inside of joint piece 403, the bottom of first fixed block 402 and second fixed block 404 all with heat dissipation box 3 fixed connection.

In addition, the inside of the heat dissipation hole 9 corresponds to the filter screen 401, and the filter screen 401 can effectively prevent dust from entering the circuit board 2 and has a good protection effect with the heat dissipation assembly 8.

When filter screen 401 protects a period, when needing the clearance, can upwards stimulate pull rod 406, extrusion spring 407 to together drive stock 409 and remove with the direction of pull rod 406, remove the restriction to joint piece 403, can take joint piece 403 even section of thick bamboo filter screen 401 out this moment, can accomplish the dismantlement operation.

When needs installation filter screen 401, can pull rod 406, make stock 409 lift, this moment, run through the inside of second fixed block 404 with filter screen 401, and with its one end pegging graft to the inside of first fixed block 402, at this moment, loosen stock 409, restrict joint block 403 joint again, thereby accomplish the installation operation, solved on the device can't prevent the dust to enter into the circuit board, can follow the air passage who sets up and enter into the problem of circuit board, and because filter screen 401 can dismantle, and then prolonged service life.

The heat dissipation assembly 8 comprises a heat-conducting silica gel sheet 801, a heat-conducting plate 802 is fixedly connected to the top of the heat-conducting silica gel sheet 801, and a plurality of heat dissipation fins 803 are fixedly connected to the top of the heat-conducting plate 802.

Both sides of the heat-conducting silica gel sheet 801 and the heat-conducting plate 802 are fixedly connected with the inner side wall of the heat-dissipating box 3, and the bottom of the heat-conducting silica gel sheet 801 corresponds to the top of the circuit board 2.

The inner bottom wall of the mounting box 1 is fixedly connected with a rubber insulation pad 11, the circuit board 2 is inserted in the rubber insulation pad 11, and the heat dissipation box 3 is mounted on the mounting box 1 through bolts 7 inserted in the first clamping plates 5 on two sides.

In addition, the circuit board 2 is placed inside the rubber insulating pad 11, and the surface of the circuit board 2 is in contact with the heat-conducting silica gel sheet 801, so that a good heat-conducting effect is achieved, and after the heat dissipation assembly 8 is used for a certain time, the bolts 7 on the two sides can be rotated, so that the heat dissipation box 3 can be detached from the mounting box 1, and the bolts 7 can be rotated again for mounting if necessary.

The utility model discloses a theory of operation is: when circuit board 2 will dispel the heat, the heat degree passes to heat-conducting plate 802 on by heat conduction silica gel piece 801 to derive by a plurality of heat radiation fins 803, there is exhaust fan 10 at last, blow to the outside of heat dissipation box 3, the effectual not good problem of heat dissipation effect of current device of solving, and owing to install dustproof subassembly 4, can effectually prevent that the dust from getting into, extension circuit board 2's life.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A novel heat dissipation circuit board comprises a mounting box (1) and a circuit board (2), and is characterized in that a heat dissipation box (3) is arranged above the mounting box (1), a dustproof assembly (4) is arranged at the top of the heat dissipation box (3), first clamping plates (5) are fixedly connected to two sides of the heat dissipation box (3), second clamping plates (6) are fixedly connected to two sides of the mounting box (1), bolts (7) are inserted into the two first clamping plates (5) and are in threaded connection with the second clamping plates (6), a heat dissipation assembly (8) is arranged inside the heat dissipation box (3), an exhaust fan (10) is fixedly connected to the inner top wall of the heat dissipation box (3), and heat dissipation holes (9) corresponding to the exhaust fan (10) are formed in the top of the heat dissipation box (3);

dustproof subassembly (4) include filter screen (401), the one end of filter screen (401) is provided with first fixed block (402), and its other end fixedly connected with joint piece (403), the outside of joint piece (403) is provided with second fixed block (404), one side fixedly connected with of second fixed block (404) inserts piece (405), and its top that is located joint piece (403), the inside of inserting piece (405) is provided with pull rod (406), the outside cover of pull rod (406) is equipped with spring (407), the one end fixedly connected with spring of pull rod (406) supports touch panel (408), and its one end runs through the interior roof that alternates joint piece (405) and extends to the outside, one side fixedly connected with stock (409) of pull rod (406) is kept away from to touch panel (408).

2. The novel heat dissipation circuit board of claim 1, wherein the inside of the first fixing block (402) is inserted into one end of the filter screen (401), the end of the clamping block (403) far away from the filter screen (401) is inserted into the inside of the second fixing block (404) and extends to the outside, one end of the spring (407) is fixedly connected with the inner top wall of the insertion block (405), the other end of the spring is fixedly connected with the inner bottom wall of the insertion block (405), the long rod (409) penetrates through the insertion block (405) and extends to the outside to be inserted into the inside of the clamping block (403), and the bottoms of the first fixing block (402) and the second fixing block (404) are fixedly connected with the heat dissipation box (3).

3. The novel heat dissipation circuit board of claim 1, wherein the heat dissipation assembly (8) comprises a heat conductive silicone sheet (801), a heat conductive plate (802) is fixedly connected to the top of the heat conductive silicone sheet (801), and a plurality of heat dissipation fins (803) are fixedly connected to the top of the heat conductive plate (802).

4. The novel heat dissipation circuit board of claim 3, wherein both sides of the heat conductive silicone sheet (801) and the heat conductive plate (802) are fixedly connected with the inner sidewall of the heat dissipation box (3), and the bottom of the heat conductive silicone sheet (801) corresponds to the top of the circuit board (2).

5. A novel heat dissipation circuit board as claimed in claim 1, wherein a rubber insulating pad (11) is fixedly connected to the inner bottom wall of the mounting box (1), the circuit board (2) is inserted into the rubber insulating pad (11), and the inside of the heat dissipation hole (9) corresponds to the filter screen (401).

6. The novel heat dissipation circuit board of claim 1, wherein the heat dissipation box (3) is mounted on the mounting box (1) through bolts (7) inserted into the first clamping plates (5) on two sides.