Liquid crystal panel dimming controller circuit board

Abstract

The utility model discloses a liquid crystal panel dimming controller circuit board, which belongs to the technical field of circuit boards and comprises a circuit board shell, a cover plate is arranged on the front surface of the circuit board shell, first mounting blocks are fixedly connected to two ends of the top and the bottom of the circuit board shell, and air inlet boxes are fixedly connected to the left side and the right side of the circuit board shell. The air inlet boxes are arranged on the left side and the right side of the circuit board shell, the concave blocks are arranged in the air inlet boxes, the bamboo fiber moisture absorption layers are arranged on the inner walls of the concave blocks, and the bamboo fiber moisture absorption layers are arranged on the air inlet paths, so that when air enters the circuit board shell, water vapor can be effectively adsorbed, and erosion of humid air to electronic elements such as a circuit board body is reduced; probabilities of short circuit, corrosion and other faults caused by moisture are reduced, and the service life of the circuit board is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and more specifically, to a circuit board for a liquid crystal panel dimming controller. Background Art

[0002] A circuit board for a liquid crystal panel dimming controller is an electronic circuit carrier for controlling the brightness of a liquid crystal panel, and is widely used in scenarios such as office, entertainment, and design.

[0003] In the prior art, the patent document with the authorization announcement number CN218071993U discloses "a limiting and fixing structure for the internal circuit board of a controller"; including a controller housing and a protective cover plate, a bidirectional threaded rod is rotatably connected inside the bottom end of the controller housing, a connecting plate is threadedly connected to the bidirectional threaded rod, the connecting plate is slidably connected inside the bottom end of the controller housing in a limited manner, and a first clamping block is fixedly connected to the top end of the connecting plate.

[0004] Although the prior art makes the circuit board suspended through the second clamping block to ensure the stability of the subsequent heat dissipation work of the circuit board, its circuit board heat dissipation design is single, relying only on natural heat dissipation, without forming an effective air convection channel, resulting in low heat dissipation efficiency, easy to cause the performance of the circuit board to decline due to overheating, and at the same time, the air entering the housing is not dehumidified, and the intrusion of water vapor causes damage to the circuit board components, reducing the service life. Summary of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a circuit board for a liquid crystal panel dimming controller, which can solve the problems raised in the above background art.

[0006] To solve the above technical problems, according to one aspect of the utility model, more specifically, it is a circuit board for a liquid crystal panel dimming controller, including a circuit board housing, a cover plate is arranged on the front surface of the circuit board housing, first mounting blocks are fixedly connected to both ends of the top and bottom of the circuit board housing, air inlet boxes are fixedly connected to both sides of the circuit board housing, an air inlet is arranged on one side of the air inlet box, a baffle is slidably connected inside the air inlet box, an opening is arranged on the top of the air inlet box, a lever is arranged on the upper part of the front surface of the air inlet box, a housing is arranged on the back surface of the circuit board housing, an air outlet is arranged on the front surface of the housing, and second mounting blocks are fixedly connected to both ends of the top and bottom of the housing.

[0007] Furthermore, a circuit board body is arranged inside the circuit board housing, a liquid crystal panel is arranged on the top of the circuit board body, and the circuit board body is fixedly connected to the circuit board housing through screws.

[0008] Furthermore, a heat dissipation fan is arranged inside the housing, and dust-proof nets are arranged inside both the air outlet and the air inlet.

[0009] Furthermore, a chute is provided at the upper part of the inner wall of the air inlet box. A slider is slidably connected to the inner wall of the chute. The outer diameter of the slider matches the inner diameter of the chute, and the slider is fixedly connected to the baffle.

[0010] Furthermore, a docking groove is provided at one side of the baffle close to the lever and away from the slider.

[0011] Furthermore, four concave blocks are provided in the air inlet box. The concave blocks are arranged in two rows side by side. A bamboo fiber moisture absorption layer is provided on the inner wall of the concave blocks. A humidity sensor is provided on the inner wall of the air inlet box. A heating wire is provided inside the bamboo fiber moisture absorption layer.

[0012] Furthermore, a limiting ring is fixedly connected to the upper part of the outer wall of the lever. A spring is sleeved on the outer wall of the lever and the spring is located on one side of the limiting ring.

[0013] Furthermore, air vents are provided on both the left and right sides and the back of the circuit board housing.

[0014] Furthermore, an insulating layer made of polytetrafluoroethylene is provided on the outer wall of the heating wire.

[0015] The beneficial effects of a circuit board of a liquid crystal panel dimming controller of the present utility model are as follows:

[0016] By providing air inlet boxes on both the left and right sides of the circuit board housing, concave blocks are provided in the air inlet boxes, and a bamboo fiber moisture absorption layer is provided on the inner walls thereof. By providing a bamboo fiber moisture absorption layer on the air inlet path, when air enters the inside of the circuit board housing, water vapor can be effectively adsorbed, reducing the erosion of humid air on electronic components such as the circuit board body, reducing the probability of failures such as short circuits and corrosion caused by moisture, and extending the service life of the circuit board.

[0017] By providing an insulating layer made of polytetrafluoroethylene on the outer wall of the heating wire, by using polytetrafluoroethylene, a material with excellent high temperature resistance and insulation performance, as the insulating layer, on the one hand, it can effectively prevent the heating wire from leaking electricity, avoid causing electrical failures of the circuit board, and ensure the safe use of the device; on the other hand, polytetrafluoroethylene has certain heat conductivity. While playing an insulating role, it will not overly hinder the transfer of heat from the heating wire to the bamboo fiber moisture absorption layer, ensuring that the heating wire can normally heat and dehumidify the bamboo fiber moisture absorption layer, without the need for frequent disassembly and replacement, improving usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in detail with reference to the drawings and specific implementation methods.

[0019] Figure 1 It is a front view schematic diagram of a circuit board of a liquid crystal panel dimming controller of the present utility model;

[0020] Figure 2 Internal schematic diagram of a circuit board of a liquid crystal panel dimming controller according to the present utility model;

[0021] Figure 3 Back schematic diagram of a circuit board of a liquid crystal panel dimming controller according to the present utility model;

[0022] Figure 4 Partial top-down schematic diagram of the circuit board housing of a circuit board of a liquid crystal panel dimming controller according to the present utility model;

[0023] Figure 5 Enlarged schematic diagram of part A of a circuit board of a liquid crystal panel dimming controller according to the present utility model;

[0024] Figure 6 Schematic diagram of the bamboo fiber moisture absorption layer of a circuit board of a liquid crystal panel dimming controller according to the present utility model.

[0025] In the figure: 1, circuit board housing; 2, cover plate; 3, first mounting block; 4, air inlet box; 5, air inlet; 6, baffle; 7, opening; 8, lever; 9, circuit board body; 10, liquid crystal panel; 11, housing; 12, cooling fan; 13, air outlet; 14, second mounting block; 15, chute; 16, slider; 17, docking groove; 18, concave block; 19, bamboo fiber moisture absorption layer; 20, limiting ring; 21, spring; 22, humidity sensor; 23, heating wire. Specific embodiments

[0026] To make the technical solution of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1

[0028] As Figures 1-6As shown in the figure, according to one aspect of the present utility model, a liquid crystal panel dimming controller circuit board is provided, including a circuit board housing 1. A cover plate 2 is provided on the front of the circuit board housing 1. First mounting blocks 3 are fixedly connected to both the top and bottom ends of the circuit board housing 1. Air inlet boxes 4 are fixedly connected to both the left and right sides of the circuit board housing 1. An air inlet 5 is provided on one side of the air inlet box 4. A baffle 6 is slidably connected in the air inlet box 4. An opening 7 is provided at the top of the air inlet box 4. A lever 8 is provided at the upper part of the front of the air inlet box 4. A housing 11 is provided on the back of the circuit board housing 1. An air outlet 13 is provided on the front of the housing 11. Second mounting blocks 14 are fixedly connected to both the top and bottom ends of the housing 11; by providing air inlet boxes 4 on both the left and right sides of the circuit board housing 1, a concave block 18 is provided in the air inlet box 4, and a bamboo fiber moisture absorption layer 19 is provided on its inner wall. By providing a bamboo fiber moisture absorption layer 19 on the air inlet path, when air enters the interior of the circuit board housing 1, water vapor can be effectively adsorbed, reducing the erosion of humid air on electronic components such as the circuit board body 9, reducing the probability of failures such as short circuits and corrosion caused by moisture, and extending the service life of the circuit board.

[0029] In this embodiment, a circuit board body 9 is provided inside the circuit board housing 1. A liquid crystal panel 10 is provided on the top of the circuit board body 9. The circuit board body 9 and the circuit board housing 1 are fixedly connected by screws. This connection method makes the circuit board body 9 firmly installed inside the circuit board housing 1, effectively resisting the influence of external vibrations and collisions on internal components, ensuring the stable cooperation between the liquid crystal panel 10 and the circuit board body 9; at the same time, screw fixation is convenient for disassembly. When performing equipment maintenance, repair, or component replacement, the circuit board body 9 can be quickly taken out of the circuit board housing 1, reducing the maintenance difficulty and time cost.

[0030] In this embodiment, a heat dissipation fan 12 is provided inside the housing 11. Dust-proof nets are provided in both the air outlet 13 and the air inlet 5. The heat dissipation fan 12 actively drives the air flow, accelerating the discharge of heat inside the circuit board housing 1 during the operation of the circuit board, and at the same time sucking in cold air from the outside through the air inlet 5, preventing component performance from decreasing or even being damaged due to excessive temperature, and ensuring its stable operation; while the dust-proof net can effectively intercept impurities such as dust and particles in the air, preventing them from entering the interior of the circuit board housing 1, avoiding dust accumulation from affecting the heat dissipation effect and the electrical performance of components, reducing the risk of failures such as short circuits, and extending the service life of the circuit board. While ensuring the heat dissipation efficiency, it takes into account dust-proof protection, improving the reliability and stability of the product.

[0031] In this embodiment, a sliding groove 15 is provided at the upper part of the inner wall of the air inlet box 4. A slider 16 is slidably connected to the inner wall of the sliding groove 15. The outer diameter size of the slider 16 matches the inner diameter size of the sliding groove 15. The slider 16 is fixedly connected to the baffle 6. The closely matching sliding groove 15 and slider 16 can ensure that the baffle 6 remains stable during the sliding process without shaking or deviation.

[0032] In this embodiment, a docking groove 17 is provided on one side of the baffle 6 close to the lever 8 and at the end far from the slider 16 to ensure the stable position of the baffle 6 when it is closed.

[0033] In this embodiment, four concave blocks 18 are provided in the air inlet box 4. The concave blocks 18 are arranged in two rows side by side. A bamboo fiber moisture absorption layer 19 is provided on the inner wall of the concave block 18, and a humidity sensor 22 is provided on the inner wall of the air inlet box 4. A heating wire 23 is provided inside the bamboo fiber moisture absorption layer 19. The arrangement of the concave blocks 18 increases the arrangement area of the bamboo fiber moisture absorption layer 19, can more fully adsorb the water vapor in the air entering the air inlet box 4, and effectively reduces the humidity of the air entering the circuit board housing 1; the humidity sensor 22 can accurately monitor the inlet humidity in real time and provide a data basis for the dehumidification operation; and the heating wire 23 is embedded inside the bamboo fiber moisture absorption layer 19, which is convenient for heating and regenerating the bamboo fiber moisture absorption layer 19 saturated with adsorbed water vapor, so that it can continuously play a moisture absorption role. The three work together to comprehensively ensure the dryness of the circuit board working environment and reduce the risk of failures caused by dampness.

[0034] In this embodiment, a limiting ring 20 is fixedly connected to the upper part of the outer wall of the lever 8. A spring 21 is sleeved on the outer wall of the lever 8 and the spring 21 is located on one side of the limiting ring 20. The spring 21 drives the lever 8 to reset to limit the position of the baffle 6.

[0035] In this embodiment, ventilation openings are provided on both the left and right sides and the back of the circuit board housing 1, which cooperate with the air inlet 5 and the air outlet 13 to form a complete heat dissipation channel and accelerate the heat dissipation efficiency inside the circuit board housing 1.

[0036] In this embodiment, an insulating layer made of polytetrafluoroethylene is provided on the outer wall of the heating wire 23, which can effectively isolate the current, prevent the occurrence of electric leakage, and ensure the safety of the circuit board and the user; at the same time, polytetrafluoroethylene has good high temperature resistance, can withstand the higher temperature generated when the heating wire 23 works, is not easy to deform or damage, and ensures the stable and lasting insulation effect; in addition, it also has certain heat conductivity and will not overly hinder the heat transfer, so that the heat generated by the heating wire 23 can be smoothly transmitted to the bamboo fiber moisture absorption layer 19 to dry the saturated moisture, and there is no need to replace it frequently.

[0037] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A liquid crystal panel dimming controller circuit board, comprising a circuit board housing (1), characterized in that: A cover plate (2) is provided on the front of the circuit board housing (1). First mounting blocks (3) are fixedly connected to both the top and bottom ends of the circuit board housing (1). Air intake boxes (4) are fixedly connected to both the left and right sides of the circuit board housing (1). An air intake port (5) is provided on one side of the air intake box (4). A baffle (6) is slidably connected inside the air intake box (4). An opening (7) is provided at the top of the air intake box (4). A lever (8) is provided at the upper part of the front of the air intake box (4). A housing (11) is provided on the back of the circuit board housing (1). An air outlet (13) is provided on the front of the housing (11). Second mounting blocks (14) are fixedly connected to both the top and bottom ends of the housing (11).

2. The liquid crystal panel dimming controller circuit board according to claim 1, wherein: A circuit board body (9) is provided inside the circuit board housing (1). A liquid crystal panel (10) is provided on the top of the circuit board body (9). The circuit board body (9) is fixedly connected to the circuit board housing (1) by screws.

3. A liquid crystal panel dimming controller circuit board according to claim 1, characterized in that: A heat dissipation fan (12) is provided inside the housing (11). Dust-proof nets are provided inside both the air outlet (13) and the air intake port (5).

4. A liquid crystal panel dimming controller circuit board according to claim 1, wherein: A chute (15) is provided at the upper part of the inner wall of the air intake box (4). A slider (16) is slidably connected to the inner wall of the chute (15). The outer diameter dimension of the slider (16) matches the inner diameter dimension of the chute (15). The slider (16) is fixedly connected to the baffle (6).

5. A liquid crystal panel dimming controller circuit board according to claim 1, characterized in that: A docking groove (17) is provided at one end of the baffle (6) that is close to the lever (8) and far from the slider (16).

6. The liquid crystal panel dimming controller circuit board according to claim 1, wherein: Four concave blocks (18) are provided inside the air intake box (4). The concave blocks (18) are arranged in two rows side by side. A bamboo fiber moisture absorption layer (19) is provided on the inner wall of the concave blocks (18). A humidity sensor (22) is provided on the inner wall of the air intake box (4). A heating wire (23) is provided inside the bamboo fiber moisture absorption layer (19).

7. A liquid crystal panel dimming controller circuit board according to claim 1, characterized in that: A limit ring (20) is fixedly connected to the upper part of the outer wall of the lever (8). A spring (21) is sleeved on the outer wall of the lever (8) and the spring (21) is located on one side of the limit ring (20).

8. A liquid crystal panel dimming controller circuit board according to claim 1, characterized in that: Ventilation openings are provided on both the left and right sides and the back of the circuit board housing (1).

9. A liquid crystal panel dimming controller circuit board according to claim 6, characterized in that: An insulating layer made of polytetrafluoroethylene is provided on the outer wall of the heating wire (23).

Images