A display screen backlight driving circuit board structure

Abstract

The utility model discloses a display screen backlight drive circuit board structure, include: bottom plate, the upper surface four corners of bottom plate are equipped with mounting hole, the middle installation of bottom plate has circuit board bottom protection institution, the middle settlement of circuit board bottom protection institution has circuit board, the upper surface four corners of circuit board are inserted and are equipped with fixed screw, circuit board surface protection institution, the outer surface of circuit board bottom protection institution is sleeved with circuit board surface protection institution, through circuit board surface protection institution, the moisture of outside generation is convenient to adsorb, avoid the moisture in humid environment and can penetrate to the inside of circuit board, influence the performance and life of circuit board, through circuit board bottom protection institution, through the component for the bottom of circuit board assembly protection of installing in this device, avoid the impact and mechanical stress of circuit board and influence the breakage or damage of circuit board as far as possible.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a display screen backlight driving circuit board structure. Background Technology

[0002] The backlight driver circuit board is a key component in LCD devices, responsible for converting the input power into a high-voltage or constant-current signal suitable for the backlight (such as LED or CCFL).

[0003] However, the existing backlight driver circuit boards for displays have poor protection conditions, making the circuit boards easy to be damaged and difficult to ensure effective heat dissipation while protecting them. Therefore, it is necessary to provide a new display backlight driver circuit board structure to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a display screen backlight driving circuit board structure to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a display screen backlight driving circuit board structure, comprising: a base plate, mounting holes are provided at the four corners of the upper surface of the base plate, a circuit board bottom protection mechanism is installed in the middle of the base plate, a circuit board is placed in the middle of the circuit board bottom protection mechanism, and fixing screws are inserted at the four corners of the upper surface of the circuit board.

[0006] A circuit board surface protection mechanism is provided, wherein the outer surface of the circuit board bottom protection mechanism is fitted with a circuit board surface protection mechanism, and a number of heat dissipation fins are equidistantly installed on the upper surface of the circuit board surface protection mechanism. Connecting plates are fixedly connected to the front and rear ends of the circuit board surface protection mechanism, and fixing bolts are inserted on the left and right sides of the connecting plates. The connecting plates and the bottom plate are provided with threaded holes that are compatible with the fixing bolts.

[0007] As a further description of the above technical solution: the bottom protection mechanism of the circuit board includes a protective groove, a heat insulation pad is installed at the bottom of the inner cavity of the protective groove, a rubber shock-absorbing pad is installed on the upper surface of the heat insulation pad, and a fixing plate is fixedly connected to the upper end of the rubber shock-absorbing pad.

[0008] As a further description of the above technical solution: the fixing plate and the circuit board are provided with threaded holes that are compatible with the fixing screws.

[0009] As a further description of the above technical solution: the circuit board surface protection mechanism includes a heat-conducting cover sleeved on the bottom protection mechanism of the circuit board, the inner cavity of the heat-conducting cover is filled with a silicone layer, and a sealing strip is connected to the bottom of the heat-conducting cover.

[0010] As a further description of the above technical solution: the outer surface of the heat-conducting cover has several ventilation openings equidistantly spaced on all four sides.

[0011] As a further description of the above technical solution: several wire holes are equidistantly opened on the right side of the upper surface of the heat-conducting cover.

[0012] As a further description of the above technical solution: a sealing ring is installed in the middle of the inner cavity of the wire hole.

[0013] This utility model provides a display screen backlight driving circuit board structure. It has the following beneficial effects:

[0014] 1. By incorporating a circuit board surface protection mechanism, including a heat-conducting cover and sealing strip, the components on the circuit board surface are easily sealed and protected. A silicone layer is provided to absorb external moisture, preventing water from penetrating the circuit board and affecting its performance and lifespan. Ventilation openings allow the silicone layer to be dried using heat generated by the circuit board while it is being protected, facilitating recycling. Water mist during the drying process can be discharged through the ventilation openings, ensuring the effectiveness of the silicone layer drying. Furthermore, the silicone layer also provides heat dissipation for the circuit board during the drying process, enhancing the practicality of this device.

[0015] 2. By setting up a circuit board bottom protection mechanism, the bottom of the circuit board is easily protected through the protective groove and fixing plate. The rubber shock-absorbing pad can effectively reduce the vibration generated by the circuit board during use, and the rubber shock-absorbing pad can withstand the working conditions in high temperature environment, ensuring that it will not deform or fail after long-term use. By setting up heat insulation pad, heat transfer can be effectively reduced and the circuit board assembly can be prevented from getting hot. By installing the components for protecting the bottom of the circuit board assembly in this device, the circuit board can be prevented from being cracked or damaged by impact and mechanical stress as much as possible. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a display screen backlight driving circuit board proposed in this utility model.

[0017] Figure 2 This is a structural diagram showing the disassembled components of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom protection mechanism of the circuit board in this utility model;

[0019] Figure 4 This is a schematic diagram of the circuit board surface protection mechanism in this utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Mounting holes; 3. Circuit board bottom protection mechanism; 301. Protective groove; 302. Heat insulation pad; 303. Rubber shock-absorbing pad; 304. Fixing plate; 4. Circuit board; 5. Fixing screws; 6. Circuit board surface protection mechanism; 601. Heat conduction cover; 602. Silicone layer; 603. Vent; 604. Sealing strip; 7. Heat dissipation fins; 8. Connecting plate; 9. Fixing bolts; 10. Wire hole; 11. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, Reference Figure 1 and Figure 2 This utility model discloses a display screen backlight driving circuit board structure, which can solve the problem that the existing display screen backlight driving circuit board has poor protection conditions, which makes the circuit board easy to be damaged and makes it difficult to ensure the effectiveness of heat dissipation while protecting it. It includes a base plate 1, mounting holes 2 are opened at the four corners of the upper surface of the base plate 1, a circuit board bottom protection mechanism 3 is installed in the middle of the base plate 1, a circuit board 4 is placed in the middle of the circuit board bottom protection mechanism 3, and fixing screws 5 are inserted at the four corners of the upper surface of the circuit board 4.

[0024] The circuit board surface protection mechanism 6 is sleeved on the outer surface of the circuit board bottom protection mechanism 3. Several heat dissipation fins 7 are installed at equal intervals on the upper surface of the circuit board surface protection mechanism 6. The front and rear ends of the circuit board surface protection mechanism 6 are fixedly connected to the connecting plate 8. The left and right sides of the connecting plate 8 are provided with fixing bolts 9, and the connecting plate 8 and the bottom plate 1 are provided with threaded holes that are compatible with the fixing bolts 9.

[0025] Working principle: The base plate 1 and mounting holes 2 facilitate the installation of this device; the circuit board bottom protection mechanism 3 facilitates the protection of the bottom of the circuit board 4; the fixing screws 5 facilitate the fixing of the circuit board 4 onto the circuit board bottom protection mechanism 3; the circuit board surface protection mechanism 6 facilitates the protection of the components on the upper surface of the circuit board; the heat dissipation fins 7 facilitate the heat dissipation generated by the circuit board 4; and the connecting plate 8 and fixing bolts 9 facilitate the installation of the circuit board surface protection mechanism 6.

[0026] Example 2, refer to Figure 3 and Figure 4This embodiment solves the problem that the existing backlight driver circuit board of the display screen has poor protection conditions, which makes the circuit board easy to be damaged and makes it difficult to ensure the effectiveness of heat dissipation while protecting it. The structure of the backlight driver circuit board of the display screen also includes a bottom protection mechanism 3 of the circuit board including a protection groove 301. A heat insulation pad 302 is installed at the bottom of the inner cavity of the protection groove 301. A rubber shock-absorbing pad 303 is installed on the upper surface of the heat insulation pad 302. A fixing plate 304 is fixedly connected to the upper end of the rubber shock-absorbing pad 303. The fixing plate 304 and the circuit board 4 have threaded holes that are compatible with the fixing screws 5. The surface protection mechanism 6 of the circuit board includes a heat-conducting cover 601 sleeved on the bottom protection mechanism 3 of the circuit board. The inner cavity of the heat-conducting cover 601 is filled with a silicone layer 602. A sealing strip 604 is connected to the bottom of the heat-conducting cover 601. A number of ventilation holes 603 are equidistantly opened on the four sides of the outer surface of the heat-conducting cover 601. A number of wire holes 10 are equidistantly opened on the right side of the upper surface of the heat-conducting cover 601. A sealing ring 11 is installed in the middle of the inner cavity of the wire hole 10.

[0027] Working Principle: After the device is placed in a suitable position, the base plate 1 is fixed through the mounting hole 2. The circuit board 4 is then placed into the protective groove 301, and the fixing screws 5 are tightened to fix the circuit board 4 and the fixing plate 304. The protective groove 301 and the fixing plate 304 facilitate the protection of the bottom of the circuit board 4. The rubber shock-absorbing pad 303 effectively reduces the vibration generated by the circuit board 4 during use, and the rubber shock-absorbing pad 303 can withstand the working conditions in high-temperature environments, ensuring that it will not deform or fail after long-term use. The heat insulation pad 302 effectively reduces heat transfer and prevents the circuit board 4 assembly from overheating. By installing the components for protecting the bottom of the circuit board 4 assembly in this device, the circuit board 4 is prevented from being cracked or damaged by impact and mechanical stress. After the circuit board 4 is fixed, the heat conduction cover 601 is fitted onto the outer surface of the protective groove 301, and the fixing bolts 9 are inserted into the connecting... The circuit board 4 is fixed to the base plate 1 and the heat-conducting cover 601 and sealing strip 604 are used to seal and protect the components on the upper surface of the circuit board 4. The silicone layer 602 is provided to absorb external moisture and prevent moisture from the humid environment from penetrating into the circuit board 4 and affecting its performance and lifespan. The ventilation port 603 is provided to protect the silicone layer 602 while using the heat generated by the circuit board 4 to dry the silicone layer 602, which is easy to use. The water mist during the drying process can be discharged through the ventilation port 603 to ensure the effectiveness of the drying of the silicone layer 602. The silicone layer 602 also has a heat dissipation effect on the circuit board 4 during the drying process, which improves the practicality of the device. The wire hole 10 and sealing ring 11 are provided to facilitate the connection of the circuit on the circuit board 4 and ensure the sealing of the heat-conducting cover 601 after connection, ensuring the effectiveness of the protection of the device.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A display screen backlight driving circuit board structure, characterized in that, include: The base plate (1) has mounting holes (2) at the four corners of its upper surface. A circuit board bottom protection mechanism (3) is installed in the middle of the base plate (1). A circuit board (4) is placed in the middle of the circuit board bottom protection mechanism (3). Fixing screws (5) are inserted at the four corners of the upper surface of the circuit board (4). The circuit board surface protection mechanism (6) is sleeved on the outer surface of the circuit board bottom protection mechanism (3). Several heat dissipation fins (7) are installed at equal intervals on the upper surface of the circuit board surface protection mechanism (6). Connecting plates (8) are fixedly connected to the front and rear ends of the circuit board surface protection mechanism (6). Fixing bolts (9) are inserted on the left and right sides of the connecting plate (8). The connecting plate (8) and the bottom plate (1) are provided with threaded holes that are compatible with the fixing bolts (9).

2. The display screen backlight driving circuit board structure according to claim 1, characterized in that, The circuit board bottom protection mechanism (3) includes a protection groove (301), a heat insulation pad (302) is installed at the bottom of the inner cavity of the protection groove (301), a rubber shock-absorbing pad (303) is installed on the upper surface of the heat insulation pad (302), and a fixing plate (304) is fixedly connected to the upper end of the rubber shock-absorbing pad (303).

3. The display screen backlight driving circuit board structure according to claim 2, characterized in that, The fixing plate (304) and the circuit board (4) are provided with threaded holes that are compatible with the fixing screws (5).

4. The display screen backlight driving circuit board structure according to claim 1, characterized in that, The circuit board surface protection mechanism (6) includes a heat-conducting cover (601) sleeved on the circuit board bottom protection mechanism (3). The inner cavity of the heat-conducting cover (601) is filled with a silicone layer (602), and a sealing strip (604) is connected to the bottom of the heat-conducting cover (601).

5. The display screen backlight driving circuit board structure according to claim 4, characterized in that, The outer surface of the heat-conducting cover (601) has several ventilation openings (603) evenly spaced on all four sides.

6. The display screen backlight driving circuit board structure according to claim 4, characterized in that, The upper surface of the heat-conducting cover (601) has several wire holes (10) equidistantly opened on the right side.

7. The display screen backlight driving circuit board structure according to claim 6, characterized in that, A sealing ring (11) is installed in the middle of the inner cavity of the wire hole (10).

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