CN220307631U - Circuit board of liquid crystal display screen - Google Patents

Abstract

The utility model provides a liquid crystal display circuit board applied to the field of circuit boards, wherein adhesive sponge rubber blocks are respectively stuck and connected to four corners of the upper end of the circuit board, the upper ends of four adhesive sponge rubber blocks are fixedly connected with a mounting backboard, and one ends of two adhesive sponge rubber blocks which are diagonally opposite are respectively stuck and connected with an adhesive side rubber block, so that the scheme is realized.

Description

Circuit board of liquid crystal display screen

Technical Field

The application relates to the field of circuit boards, in particular to a liquid crystal display circuit board.

Background

The names of the circuit boards are: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum substrates, high frequency boards, thick copper plates, impedance boards, PCBs, ultra-thin circuit boards, printed (copper etching technology) circuit boards, and the like. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in mass production of fixed circuits and optimization of the layout of electrical appliances.

The liquid crystal display needs to be provided with a circuit board to perform normal remote control operation, but inductance elements on the circuit board are numerous and are arranged inside a liquid crystal display shell, heat is easy to generate in the continuous flowing of current and is accumulated in the circuit board, the heat is difficult to dissipate, and the service life of the circuit board and the service efficiency of the liquid crystal display are easy to influence in a high-temperature environment.

Therefore, a circuit board of a liquid crystal display with heat dissipation function is needed to solve the problem.

Disclosure of Invention

This application aim at designs a LCD screen circuit board with heat dissipation function, compare prior art and provide a LCD screen circuit board, through the circuit board, the upper end four corners of circuit board is all pasted and is connected with and paste the sponge gel piece, the upper end fixedly connected with installation backplate of four paste the sponge gel piece, the one end that two paste the sponge gel piece and be close to each other of diagonal angle is all pasted and is connected with and paste the side gel piece, the equal fixedly connected with horizontal pole of one end that two paste side gel pieces and be close to each other, the one end fixedly connected with protective frame that two horizontal poles are close to each other, the upper inner wall fixedly connected with motor of protective frame, the output fixedly connected with flabellum of motor, the lower extreme middle part fixedly connected with touch switch of protective frame, the upper end middle part fixedly connected with base of circuit board, the upper end fixedly connected with memory metal strip of base.

The realization scheme is at first with the circuit board through four suitable positions of pasting the sponge gel piece and installing on the installation backplate, when the heat in the cavity produces the gathering because the operation of circuit board gradually, the memory metal strip is stretched to the one side that is close to the protection frame when the temperature rises gradually and touches mutually with touch switch, touch switch is connected with the motor through the wire after receiving the touching power, the motor receives and drives the flabellum after opening the signal and rotates the heat dissipation, memory metal strip is retracted gradually and is not contacted with touch switch after the temperature in the cavity tends to be normal simultaneously, the motor stops the drive, do benefit to and mobilize the flabellum in a flexible way according to the running condition of protection frame and whether move, effectively prolong the life of motor, the cost of dispelling the heat of protection frame when the operation is lower.

Further, the touch switch is electrically connected with the motor through a lead, and the memory metal strip is matched with the touch switch.

Further, the upper end fixedly connected with silica gel ball cover of memory metal strip contacts between silica gel ball cover and the touch switch, through setting up, silica gel ball cover multiplicable with touch switch's area of contact guarantee motor start-up smoothly, and for flexible contact, do benefit to the reduction stereoplasm contact, and then the life of extension touch switch.

Optionally, the memory metal strip is stretched when the temperature rises, and the memory metal strip is contracted when the temperature falls.

Further, the touch switch and the memory metal strip are vertically corresponding.

Further, a plurality of heat dissipation holes are formed in the mounting backboard, and the heat dissipation holes are matched with the circuit board.

Compared with the prior art, the advantage of this application lies in:

(1) According to the scheme, the circuit board is firstly arranged at the proper position on the mounting backboard through the four adhesive sponge rubber blocks, when heat in the cavity is gradually accumulated due to the operation of the circuit board, the memory metal strip is gradually stretched to one side close to the protection frame when the temperature rises and is contacted with the touch switch, the touch switch is connected with the motor through a wire after receiving the touch force, the motor is driven to rotate for heat dissipation after receiving the start signal, meanwhile, the memory metal strip is gradually retracted to be not contacted with the touch switch after the temperature in the cavity tends to be normal, the motor stops driving, the flexible adjustment of whether the fan blade operates or not according to the operation condition of the protection frame is facilitated, the service life of the motor is effectively prolonged, and the heat dissipation cost of the protection frame during operation is lower.

(2) Through set up the silica gel ball cover in memory metal strip one end that is close to touch switch, the silica gel ball cover multiplicable with touch switch's area of contact guarantee motor start smoothly, and for flexible contact, do benefit to the reduction stereoplasm contact, and then extension touch switch's life.

Drawings

FIG. 1 is a mounting status diagram of a mounting back plate and a circuit board of the present application;

FIG. 2 is a diagram of the location between the mounting and mounting back plate and the circuit board of the heat dissipation mechanism of the present application;

fig. 3 is a partial enlarged view of fig. 2 a of the present application.

The reference numerals in the figures illustrate:

1. mounting a backboard; 2. sticking a sponge rubber block; 3. a circuit board; 4. sticking a side glue block; 5. a cross bar; 6. a protective frame; 7. a motor; 8. a fan blade; 9. a base; 10. a memory metal strip; 11. a touch switch; 12. silica gel ball cover.

Detailed Description

The embodiments will be described in detail and throughout the specification with reference to the drawings, wherein, based on the embodiments in the application, all other embodiments obtained by persons skilled in the art without making creative efforts are within the scope of protection of the application.

Example 1:

the utility model provides a circuit board of a liquid crystal display screen, referring to fig. 2-3, which comprises a circuit board 3, wherein four corners of the upper end of the circuit board 3 are respectively stuck and connected with a sticking sponge rubber block 2, the upper ends of the four sticking sponge rubber blocks 2 are fixedly connected with a mounting backboard 1, one ends of the two sticking sponge rubber blocks 2 which are diagonally opposite are respectively stuck and connected with a sticking side rubber block 4, one ends of the two sticking side rubber blocks 4 which are diagonally opposite are respectively stuck and connected with a cross rod 5, one ends of the two cross rods 5 which are mutually close are fixedly connected with a protective frame 6, the upper inner wall of the protective frame 6 is fixedly connected with a motor 7, the output end of the motor 7 is fixedly connected with a fan blade 8, the middle part of the lower end of the protective frame 6 is fixedly connected with a touch switch 11, the middle part of the upper end of the circuit board 3 is fixedly connected with a base 9, and the upper end of the base 9 is fixedly connected with a memory metal strip 10.

Referring to fig. 2-3, the touch switch 11 is electrically connected to the motor 7 through a conductive wire, the memory metal strip 10 is in a stretched shape when the temperature rises, the memory metal strip 10 is in a contracted shape when the temperature falls, the positions of the touch switch 11 and the memory metal strip 10 are in a vertical corresponding shape, the mounting backboard 1 is provided with a plurality of heat dissipation holes, and the heat dissipation holes are mutually matched with the circuit board 3.

Referring to fig. 1-3, the circuit board 3 is firstly mounted at a proper position on the mounting backboard 1 through four adhesive sponge rubber blocks 2, and meanwhile, the protective frame 6 is fixed in a cavity between the mounting backboard 1 and the circuit board 3 in a slant way through adhesive side rubber blocks 4 outside two cross bars 5, when heat in the cavity gradually gathers due to operation of the circuit board 3, the memory metal strip 10 gradually stretches to one side close to the protective frame 6 when the temperature rises and touches the touch switch 11, the touch switch 11 is connected with the motor 7 through a wire after receiving touch force, the motor 7 is driven to rotate by a fan blade 8 after receiving an opening signal, airflow in the cavity is accelerated by utilizing the rotating force of the fan blade 8, heat is accelerated to be led out of the mounting backboard 1 through a radiating hole on the mounting backboard 1, meanwhile, the memory metal strip 10 gradually retracts and is not contacted with the touch switch 11 after the temperature in the cavity tends to be normal, the motor 7 stops driving, the fan blade 8 is flexibly adjusted according to the operation condition of the protective frame 6, the service life of the motor 7 is effectively prolonged, and the heat dissipation cost of the protective frame 6 is lower when the operation is performed.

Example 2:

referring to fig. 3, the upper end of the memory metal strip 10 is fixedly connected with a silicone ball sleeve 12, the silicone ball sleeve 12 contacts with the touch switch 11, and the silicone ball sleeve 12 is arranged at one end of the memory metal strip 10 close to the touch switch 11, so that the contact area between the silicone ball sleeve 12 and the touch switch 11 can be increased to ensure smooth starting of the motor 7, and the silicone ball sleeve is in flexible contact, thereby being beneficial to reducing hard contact and further prolonging the service life of the touch switch 11.

The foregoing is merely a preferred embodiment of the present application, which is used in connection with the actual requirement, but the scope of the present application is not limited thereto.

Claims (6)

1. The utility model provides a liquid crystal display circuit board, includes circuit board (3), its characterized in that, the upper end four corners of circuit board (3) is all pasted and is connected with and paste sponge rubber block (2), four the upper end fixedly connected with installation backplate (1) of pasting sponge rubber block (2), two of diagonal angle paste the one end that pastes sponge rubber block (2) and be close to each other and all paste and be connected with and paste side rubber block (4), two paste the equal fixedly connected with horizontal pole (5) of one end that side rubber block (4) are close to each other, two the one end fixedly connected with guard frame (6) that the horizontal pole (5) are close to each other, the upper inner wall fixedly connected with motor (7) of guard frame (6), the output fixedly connected with flabellum (8) of motor (7), the lower extreme middle part fixedly connected with touch switch (11) of guard frame (6), the upper end middle part fixedly connected with base (9) of circuit board (3), the upper end fixedly connected with memory metal strip (10) of base (9).

2. A liquid crystal display circuit board according to claim 1, wherein the touch switch (11) is electrically connected with the motor (7) through a wire, and the memory metal strip (10) is matched with the touch switch (11).

3. The liquid crystal display circuit board according to claim 1, wherein the upper end of the memory metal strip (10) is fixedly connected with a silica gel ball sleeve (12), and the silica gel ball sleeve (12) is contacted with the touch switch (11).

4. A liquid crystal display circuit board according to claim 1, characterized in that the memory metal strips (10) are stretched when the temperature rises and the memory metal strips (10) are contracted when the temperature falls.

5. A liquid crystal display circuit board according to claim 1, wherein the touch switch (11) and the memory metal strip (10) are vertically corresponding.

6. A liquid crystal display circuit board according to claim 1, characterized in that the mounting back plate (1) is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are matched with the circuit board (3).