Backlight source driving circuit board

Abstract

The utility model relates to the technical field of backlight circuit boards, and particularly discloses a backlight driving circuit board which comprises an installation frame, a clamping assembly is installed on one side of an inner cavity of the installation frame, a positioning assembly is installed on the clamping assembly in a matched mode, and positioning plates are installed on the two symmetrical sides of the inner cavity of the installation frame respectively. A cooling assembly is installed in the installation frame in a matched mode, a dust filtering net is arranged on the ground of the installation frame, and a taking opening is formed in the installation frame. According to the backlight source driving circuit board, the positioning assembly is arranged in the backlight source driving circuit board, so that in the using process of the device, all structures in the positioning assembly are matched with one another, the whole clamping assembly can be conveniently and rapidly limited after the first threaded rod is adjusted, and then the clamping stability of the circuit board is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of backlight circuit boards, and in particular relates to a backlight driving circuit board. Background Art

[0002] The backlight driver circuit board is an electronic component used to control and drive the backlight of the display.

[0003] In the Chinese patent publication number CN216412553U, a direct-lit LED backlight driver circuit board is mentioned. The invention provides a device that can achieve sufficient heat dissipation of the circuit board to prevent damage to the circuit board due to excessive temperature during use. At the same time, the invention can blow off dust on the circuit board to improve the practicality of the device. By providing a clamping mechanism and a take-and-put port, the circuit board can be effectively clamped, avoiding the poor fixing effect of traditional fixing methods.

[0004] However, in the prior art, the circuit board is mounted and positioned using bolts. When the device is in use, the bolts often become loose due to vibration, thereby affecting the stability and safety of the circuit board in subsequent use.

[0005] Therefore, a backlight source driving circuit board is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a backlight source driving circuit board to solve the problem that in the prior art, the circuit board is installed and positioned by bolts. When the device is used, the bolt positioning often becomes loose due to vibration, thereby affecting the stability and safety of the circuit board in subsequent use.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a backlight source driver circuit board, comprising a mounting frame, a clamping assembly mounted on one side of an inner cavity of the mounting frame, a positioning assembly mounted on the clamping assembly, positioning plates mounted on two symmetrical sides of the inner cavity of the mounting frame, a cooling assembly mounted in the mounting frame, a dust filter disposed on the floor of the mounting frame, and a take-out opening formed on the mounting frame;

[0008] The positioning assembly includes a connecting column 1;

[0009] The bottom surface of the connecting column 1 is provided with a plug-in slot, a plug-in column is slidably installed in the plug-in slot, a spring is sleeved on the outer wall of the plug-in column, and the spring is connected to the bottom surface of the connecting column 1;

[0010] A connecting ring is installed below the outer wall of the connecting column 1.

[0011] Preferably: the clamping assembly includes a connecting frame, a connecting frame is installed on one side of the inner wall of the installation frame, a threaded rod 1 is rotatably installed on the bottom surface of the inner cavity of the connecting frame, a clamping plate is threadedly connected to the threaded rod 1, a connecting shaft is installed on the top surface of the threaded rod 1, the connecting shaft passes through the top surface of the connecting frame and extends to above the connecting frame, and a rubber pad is installed on the bottom surface of the clamping plate.

[0012] Preferably, a connecting disk is installed at one end of the connecting shaft away from the threaded rod, a plurality of through holes are evenly opened on the top surface of the connecting disk, and a plurality of anti-slip teeth are evenly distributed on the outer wall of the connecting disk.

[0013] Preferably, a plug-in column is installed on the top surface of the connection frame, and a connection column 1 is slidably installed in the insertion hole.

[0014] Preferably: the cooling component includes a motor, a motor is installed on the outer wall of the mounting frame, a power output shaft of the motor passes through the mounting frame and extends into the inner cavity of the mounting frame, a threaded rod 2 is installed on the power output shaft of the motor, and the inner cavity of the mounting frame is provided with positioning columns on both sides of the threaded rod 2, a moving block is slidably installed between the two positioning columns, the moving block is threadedly connected to the threaded rod 2, and fans are symmetrically arranged on the moving block.

[0015] Preferably, the moving block is wedge-shaped, and the bottom surface of the moving block contacts a dust filter.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a positioning assembly in a backlight source driver circuit board, so that during the use of the device, the various structures in the positioning assembly cooperate with each other, and the clamping assembly as a whole can be quickly limited after the threaded rod is adjusted, thereby ensuring the stability of the circuit board clamping. This solves the problem in the prior art of installing and positioning the circuit board by bolts, where the bolt positioning often becomes loose due to vibration when the device is in use, thereby affecting the stability and safety of the circuit board in subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional diagrams of the present utility model;

[0019] Figure 2 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 For the utility model explosion;

[0021] Figure 4 This is a schematic diagram of the installation structure of the clamping assembly of the utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the positioning assembly of the present invention.

[0023] In the figure: 1. Mounting frame; 2. Clamping assembly; 201. Connecting frame; 202. Threaded rod 1; 203. Connecting plate; 204. Through hole; 206. Anti-slip teeth; 207. Clamping plate; 208. Rubber pad; 209. Connecting shaft; 3. Positioning plate; 4. Circuit board body; 5. Positioning assembly; 501. Connecting column 1; 502. Plug-in slot; 503. Connecting ring; 504. Plug-in column; 505. Spring; 601. Motor; 602. Threaded rod 2; 603. Moving block; 604. Fan; 605. Positioning column; 7. Dust filter; 8. Removal port. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1-Figure 5 As shown, the utility model provides a backlight driver circuit board, including a mounting frame 1, a clamping assembly 2 is installed on one side of the inner cavity of the mounting frame 1, a positioning assembly 5 is installed on the clamping assembly 2, positioning plates 3 are installed on both sides of the inner cavity of the mounting frame 1 symmetrically, a cooling assembly is installed in the mounting frame 1, a dust filter 7 is provided on the ground of the mounting frame 1, and a take-out opening 8 is opened on the mounting frame 1;

[0026] The positioning assembly 5 includes a connecting column 501;

[0027] The bottom surface of the connecting column 501 is provided with a plug-in slot 502, in which a plug-in column 504 is slidably installed. A spring 505 is sleeved on the outer wall of the plug-in column 504, and the spring 505 is connected to the bottom surface of the connecting column 501;

[0028] A connecting ring 503 is installed below the outer wall of the connecting column 1 501;

[0029] In this embodiment, the circuit board body 4 is placed between the two positioning plates 3 and the mounting frame 1, and then the connecting ring 503 is pressed to drive the connecting post 1 501 to slide downward, so that the connecting post 1 501 slides out of the insertion hole 204;

[0030] Furthermore, the connection plate 203 is rotated to drive the connection shaft 209 and the threaded rod 1 202 to rotate. At this time, the clamping plate 207 will move in the vertical direction, thereby clamping the circuit board body 4. The rubber pad 208 is in close contact with the circuit board body 4 to increase the friction force, thereby achieving the positioning of the circuit board body 4.

[0031] Furthermore, the pressure on the connecting ring 503 is released, and it moves upward under the action of the spring 505. The connecting column 501 is snapped into the through hole 204, thereby limiting the connecting disk 203 and avoiding the self-rotation of the connecting disk 203. After the threaded rod 202 is adjusted, the clamping assembly 2 can be quickly limited as a whole, thereby ensuring the stability of the circuit board clamping.

[0032] In a further embodiment, referring to Figure 1-Figure 5 The clamping assembly 2 includes a connecting frame 201. The connecting frame 201 is installed on one side of the inner wall of the mounting frame 1. A threaded rod 202 is rotatably installed on the bottom surface of the inner cavity of the connecting frame 201. A clamping plate 207 is threadedly connected to the threaded rod 202. A connecting shaft 209 is installed on the top surface of the threaded rod 202. The connecting shaft 209 passes through the top surface of the connecting frame 201 and extends to the top of the connecting frame 201. A rubber pad 208 is installed on the bottom surface of the clamping plate 207.

[0033] A connecting disk 203 is installed at one end of the connecting shaft 209 away from the threaded rod 1 202 . A plurality of through holes 204 are evenly opened on the top surface of the connecting disk 203 , and a plurality of anti-slip teeth 206 are evenly distributed on the outer wall of the connecting disk 203 .

[0034] The top surface of the connecting frame 201 is installed with a plug-in column 504, and the connecting column 1 501 is slidably installed in the insertion hole 204;

[0035] The cooling assembly includes a motor 601, which is mounted on the outer wall of the mounting frame 1. The power output shaft of the motor 601 passes through the mounting frame 1 and extends into the inner cavity of the mounting frame 1. The power output shaft of the motor 601 is mounted with a second threaded rod 602. The inner cavity of the mounting frame 1 is provided with positioning posts 605 on both sides of the second threaded rod 602. A moving block 603 is slidably mounted between the two positioning posts 605. The moving block 603 is threadedly connected to the second threaded rod 602. A fan 604 is symmetrically arranged on the moving block 603.

[0036] The two positioning posts 605 are used to limit the moving block 603 to prevent the moving block 603 from rotating as the threaded rod 2 602 rotates.

[0037] The moving block 603 is wedge-shaped, and the bottom surface of the moving block 603 contacts the dust filter 7;

[0038] In this embodiment, when heat dissipation is performed, the starting motor 601 drives the threaded rod 2 602 to rotate, and drives the moving block 603 to slide between the threaded rod 2 602 and the two positioning columns 605. At this time, the fan 604 on the moving block 603 will blow the circuit board body 4 to dissipate heat, and in the process of moving the moving block 603, the moving block 603 will scrape the surface of the dust filter 7, causing the dust filter 7 to vibrate, thereby reducing the dust adhering to the dust filter 7.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A backlight source driver circuit board, comprising a mounting frame (1), characterized in that: A clamping assembly (2) is installed on one side of the inner cavity of the installation frame (1), a positioning assembly (5) is installed on the clamping assembly (2), positioning plates (3) are installed on two symmetrical sides of the inner cavity of the installation frame (1), a cooling assembly is installed in the installation frame (1), a dust filter (7) is provided on the ground of the installation frame (1), and a take-out opening (8) is provided on the installation frame (1); The positioning assembly (5) includes a connecting column 1 (501); The bottom surface of the connecting column 1 (501) is provided with a plug-in slot (502), a plug-in column (504) is slidably installed in the plug-in slot (502), a spring (505) is sleeved on the outer wall of the plug-in column (504), and the spring (505) is connected to the bottom surface of the connecting column 1 (501); A connecting ring (503) is installed below the outer wall of the connecting column 1 (501).

2. The backlight driver circuit board according to claim 1, wherein: The clamping assembly (2) includes a connecting frame (201), a connecting frame (201) is installed on one side of the inner wall of the mounting frame (1), a threaded rod (202) is rotatably installed on the bottom surface of the inner cavity of the connecting frame (201), a clamping plate (207) is threadedly connected to the threaded rod (202), a connecting shaft (209) is installed on the top surface of the threaded rod (202), the connecting shaft (209) passes through the top surface of the connecting frame (201) and extends to the top of the connecting frame (201), and a rubber pad (208) is installed on the bottom surface of the clamping plate (207).

3. The backlight driver circuit board according to claim 2, wherein: A connecting disk (203) is installed at one end of the connecting shaft (209) away from the threaded rod (202), a top surface of the connecting disk (203) is evenly provided with a plurality of through holes (204), and an outer wall of the connecting disk (203) is evenly distributed with a plurality of anti-slip teeth (206).

4. The backlight driver circuit board according to claim 3, wherein: A plug-in column (504) is installed on the top surface of the connection frame (201), and a connection column 1 (501) is slidably installed in the insertion hole (204).

5. The backlight driver circuit board according to claim 1, wherein: The cooling component includes a motor (601), the motor (601) is installed on the outer wall of the mounting frame (1), the power output shaft of the motor (601) passes through the mounting frame (1) and extends into the inner cavity of the mounting frame (1), the power output shaft of the motor (601) is installed with a second threaded rod (602), the inner cavity of the mounting frame (1) is located on both sides of the second threaded rod (602) and respectively installed with positioning columns (605), a moving block (603) is slidably installed between the two positioning columns (605), the moving block (603) is threadedly connected to the second threaded rod (602), and a fan (604) is symmetrically arranged on the moving block (603).

6. The backlight driver circuit board according to claim 5, characterized in that: The moving block (603) is wedge-shaped, and the bottom surface of the moving block (603) contacts a dust filter (7).

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