Side light type LED backlight source control device

Abstract

The utility model provides a sidelight type LED (light-emitting diode) backlight source control device, which relates to the technical field of LED control devices, and comprises a shell and a positioning frame, a dust screen is fixedly connected in the positioning frame, four vertex angles of the positioning frame are provided with limiting grooves, the number of the limiting devices is four, and the limiting devices are respectively arranged at the four vertex angles of the top of the shell. The limiting device comprises a limiting column and a telescopic piece, a containing groove is formed in the limiting column, the telescopic piece is arranged in the containing groove, the limiting column can stretch into the limiting groove, a limiting block is arranged on the limiting column, and the end of the telescopic piece is fixedly connected with the end of the limiting block. After being extruded by the inner wall of the limiting groove, the limiting block can inwards extrude the telescopic piece, so that the limiting block extends into the containing groove, the positioning column extends out of the limiting groove, the device is convenient to operate, not prone to being affected by the environment and high in practicability, and the fixing mode is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of LED control devices, in particular to a side-light LED backlight source control device. Background Art

[0002] LED, or light-emitting diode, is a commonly used light-emitting device that emits light by releasing energy through the recombination of electrons and holes. It is widely used in the lighting field. Light-emitting diodes can efficiently convert electrical energy into light energy. The side-lit LED backlight control device is a device widely used in display technology. It is mainly used to control the brightness, color and other parameters of the side-lit LED backlight to improve the display effect of the display screen.

[0003] The existing publication number CN218914838U discloses a side-lit LED backlight control device, which has two mounting holes on the top of the shell. An iron sheet is installed on one side of the top of the shell near the mounting holes. A magnetic patch is adsorbed on one side of the iron sheet, and a baffle is adhered to the side of the magnetic patch opposite to the iron sheet. A mounting groove is provided on the baffle, and a dustproof net is fixedly connected in the mounting groove to achieve the dust-proof effect, prevent external dust from entering the device through the mounting hole, and prevent excessive dust from causing the circuit on the drive control board to break, so that the device can continue to work normally.

[0004] In the above device, the baffle and the dust screen are connected to the top of the shell by magnetic adsorption. However, the magnetic adsorption method is easily affected by the environment, such as high temperature, which may cause the performance of the magnet to deteriorate. In addition, the magnetic adsorption method is unstable and not very practical.

[0005] Therefore, it is necessary to provide a new side-lit LED backlight source control device to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a side-lit LED backlight source control device.

[0007] The utility model provides a side-lit LED backlight control device comprising a housing, wherein two mounting holes are provided on the top of the housing, wherein heat dissipation fans are provided in the two mounting holes, and further comprising a positioning frame, wherein a dustproof net is fixedly connected to the positioning frame, and the positioning frame is detachably connected to the top of the housing via a limiting device;

[0008] The four top corners of the positioning frame are provided with limiting grooves. There are four limiting devices, which are fixedly connected to the four top corners of the top of the shell. The limiting device includes a limiting column and a telescopic part. The limiting column is provided with a accommodating groove. The telescopic part is arranged in the accommodating groove. The limiting column can be extended into the limiting groove. A limiting block is provided on the limiting column. The end of the telescopic part is fixedly connected to the end of the limiting block.

[0009] Preferably, the telescopic part includes a fixed column and a telescopic rod, a telescopic slot is provided on the top of the fixed column, a spring is provided in the telescopic slot, one end of the spring is fixedly connected to the bottom end of the telescopic slot, and the other end of the spring is fixedly connected to the bottom of the telescopic rod, and the telescopic rod is slidably provided in the telescopic slot.

[0010] Preferably, the side section of the limiting block is fan-shaped, and the arc surface of the fan is close to the positioning frame.

[0011] Preferably, a support plate is provided in the inner cavity of the shell, and a drive control board is provided on the support plate.

[0012] Preferably, two threading holes are provided on one side of the shell.

[0013] Preferably, the dustproof net is a nano-scale dustproof net.

[0014] Compared with the related art, the side-lit LED backlight source control device provided by the present invention has the following beneficial effects: the side-lit LED backlight source control device is provided with a dustproof net through a limiting device, and the positioning frame and the dustproof net can be directly pressed downward during installation. After the limiting block is squeezed by the inner wall of the limiting groove, it will squeeze the telescopic part inward, so that the limiting block extends into the accommodating groove, thereby causing the positioning column to extend out of the limiting groove. The above device is relatively convenient to operate, not easily affected by the environment, and has strong practicality, and the above fixing method will be relatively stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a side-lit LED backlight control device provided by the present invention;

[0016] Figure 2 for Figure 1 An exploded view of an edge-lit LED backlight control device is shown;

[0017] Figure 3 for Figure 2 A cutaway view of the limiting device is shown.

[0018] Numbers in the figure: 1. Housing; 2. Positioning frame; 3. Limiting column; 4. Threading hole; 5. Limiting block; 6. Dust net; 7. Limiting slot; 8. Mounting hole; 9. Cooling fan; 10. Drive control board; 11. Accommodating slot; 12. Telescopic rod; 13. Fixing column; 14. Telescopic slot; 15. Spring. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0020] Please refer to Figure 1-Figure 3 ,in, Figure 1This is a schematic structural diagram of a side-lit LED backlight control device provided by the present invention; Figure 2 for Figure 1 An exploded view of an edge-lit LED backlight control device is shown; Figure 3 for Figure 2 A cutaway view of the limiting device is shown.

[0021] In the specific implementation process, Figure 1-Figure 3 As shown, a side-lit LED backlight control device includes a housing 1, with two mounting holes 8 defined in the top of the housing 1. Cooling fans 9 are disposed in the two mounting holes 8. The cooling fans 9 can dissipate heat from the interior of the device to prevent excessive temperatures from causing the device to malfunction or even be damaged. The device also includes a positioning frame 2, with a dust screen 6 fixedly connected thereto. The positioning frame 2 is detachably connected to the top of the housing 1 via a limiting device.

[0022] The four top corners of the positioning frame 2 are provided with limiting grooves 7, and there are four limiting devices, which are fixedly connected to the four top corners of the top of the shell 1. The limiting device includes a limiting column 3 and a telescopic member. The limiting column 3 is provided with a receiving groove 11, and the telescopic member is arranged in the receiving groove 11. The limiting column 3 can extend into the limiting groove 7. A limiting block 5 is provided on the limiting column 3, and the end of the telescopic member is fixedly connected to the end of the limiting block 5. When installing the positioning frame 2, align the limiting grooves 7 at the four top corners of the positioning frame 2 with the limiting columns 3 at the four top corners of the top of the shell 1, and press downward. The top of the limiting block 5 is squeezed by the inner wall of the limiting groove 7, which will cause the limiting block 5 to move into the receiving groove 11. At this time, the telescopic member is also squeezed.

[0023] The telescopic part includes a fixed column 13 and a telescopic rod 12. A telescopic slot 14 is provided on the top of the fixed column 13. A spring 15 is provided in the telescopic slot 14. One end of the spring 15 is fixedly connected to the bottom end of the telescopic slot 14, and the other end of the spring 15 is fixedly connected to the bottom of the telescopic rod 12. The telescopic rod 12 is slidably set in the telescopic slot 14. When the positioning frame 2 is pressed downward, the limit block 5 drives the telescopic rod 12 to move into the telescopic slot 14. At this time, the spring 15 is squeezed and compressed until the limit column 3 extends out of the limit slot 7. The limit block 5 is no longer squeezed by the inner wall of the limit slot 7. The spring 15 returns to its original state due to natural elastic force, driving the telescopic rod 12 and the limit block 5 to move to their original position.

[0024] The side section of the limit block 5 is fan-shaped, and the arc surface of the fan is close to the positioning frame 2. When the top of the arc is squeezed, it can drive the telescopic rod 12 to move inward. After the limit column 3 extends out of the limit slot 7, the horizontal bottom end of the limit block 5 can be against the top of the positioning frame 2.

[0025] A support plate is provided in the inner cavity of the shell 1 , on which a drive control board 10 is provided, and the support plate is used to support the drive control board 10 .

[0026] Two wire holes 4 are provided on one side of the housing 1 , so as to facilitate passing cables through the wire holes 4 and extending to the outside of the housing 1 .

[0027] The dustproof net 6 is a nano-scale dustproof net 6, which can more effectively absorb and capture smaller dust, microorganisms and other pollutants.

[0028] When the cam 12 is in the closed position, the cam 12 is in the closed position, and the cam 12 is in the closed position, so that the cam 12 can move in the closed position.

[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A side-lit LED backlight control device, comprising a housing (1), wherein the top of the housing (1) is provided with two mounting holes (8), and a heat dissipation fan (9) is provided in each of the two mounting holes (8), characterized in that: It also includes a positioning frame (2), a dustproof net (6) is fixedly connected to the positioning frame (2), and the positioning frame (2) is detachably connected to the top of the housing (1) through a limiting device; The four top corners of the positioning frame (2) are provided with limiting grooves (7), and there are four limiting devices, which are respectively fixedly connected to the four top corners of the top of the shell (1). The limiting devices include a limiting column (3) and a telescopic member. The limiting column (3) is provided with a receiving groove (11), and the telescopic member is arranged in the receiving groove (11). The limiting column (3) can extend into the limiting groove (7), and a limiting block (5) is provided on the limiting column (3). The end of the telescopic member is fixedly connected to the end of the limiting block (5).

2. The edge-lit LED backlight control device according to claim 1, characterized in that: The telescopic member comprises a fixed column (13) and a telescopic rod (12); a telescopic slot (14) is provided on the top of the fixed column (13); a spring (15) is provided in the telescopic slot (14); one end of the spring (15) is fixedly connected to the bottom end of the telescopic slot (14); the other end of the spring (15) is fixedly connected to the bottom of the telescopic rod (12); and the telescopic rod (12) is slidably provided in the telescopic slot (14).

3. The edge-lit LED backlight control device according to claim 2, wherein: The side section of the limiting block (5) is fan-shaped, and the arc surface of the fan is close to the positioning frame (2).

4. The edge-lit LED backlight control device according to claim 3, wherein: A support plate is provided in the inner cavity of the housing (1), and a drive control board (10) is provided on the support plate.

5. The edge-lit LED backlight control device according to claim 4, characterized in that: Two threading holes (4) are provided on one side of the housing (1).

6. The edge-lit LED backlight control device according to claim 5, characterized in that: The dustproof net (6) is a nano-scale dustproof net (6).

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