Fixing structure of backlight source

Abstract

The utility model relates to the technical field of backlight fixing, in particular to a backlight fixing structure which comprises an upper frame, a diffusion film is arranged on the inner side of the upper frame, a light guide plate is arranged at the bottom of the diffusion film, a lower frame is arranged on the inner side of the upper frame, and the outer side of the surface of the light guide plate and the outer side of the surface of the diffusion film are attached to the inner side of the lower frame. Fixing and fastening mechanisms are fixedly connected to the two sides of the upper frame, connecting and positioning plates are symmetrically arranged on the two sides of the lower frame, fixing grooves are symmetrically formed in the two sides of the upper frame, and the fixing and fastening mechanisms and the connecting and positioning plates are matched with each other, so that the upper frame and the lower frame can be connected with each other in the process of mutual connection. The upper frame and the lower frame can be rapidly and stably connected and fixed, then the diffusion film and the light guide plate can be stably installed and used, the overall structure is simple, and operation is convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight source fixing, in particular to a backlight source fixing structure. Background Art

[0002] The backlight is a light source located behind the liquid crystal display. Its luminous effect will directly affect the visual effect of the liquid crystal display module.

[0003] When the existing fixing structure is used, the middle iron frame and the upper iron frame are usually fixed to each other by simply snapping them together, and the middle iron frame and the upper iron frame are usually connected and fastened with small bolts. The operation requires more delicate operation and is prone to damage to the bolts and threaded holes. For this reason, we propose a fixing structure for the backlight source. Utility Model Content

[0004] In view of the above problems, the utility model provides a backlight source fixing structure, which can solve the problems existing in the above background technology.

[0005] The technical solution of the utility model is:

[0006] A fixing structure of a backlight source comprises an upper frame, a diffusion film is provided on the inner side of the upper frame, a light guide plate is provided at the bottom of the diffusion film, a lower frame is provided on the inner side of the upper frame, the outer surfaces of the light guide plate and the diffusion film are in contact with the inner side of the lower frame, both sides of the upper frame are fixedly connected with a fixing fastening mechanism, both sides of the lower frame are symmetrically provided with connecting positioning plates, and both sides of the upper frame are symmetrically provided with fixing grooves.

[0007] In a further technical solution, a fixing slot is provided at the top of the lower frame, and a fixing protrusion is provided at the inner side of the upper frame.

[0008] In a further technical solution, a first through slot is formed at the front end of the upper frame, and a second through slot is formed at the front end of the lower frame.

[0009] In a further technical solution, the fixing and fastening mechanism includes a T-shaped positioning rod, and the first turntable and the second turntable are movably sleeved on the outer surface of the T-shaped positioning rod respectively, and a movable connecting arm is movably connected between the first turntable and the second turntable via a connecting rod, and the other end of the movable connecting arm is connected to a connecting mounting arm via a connecting rod, and the other end of the connecting mounting arm is fixedly connected to a fixed connecting block, and a connecting positioning rod is symmetrically provided on the side of the fixed connecting block away from the connecting mounting arm.

[0010] In a further technical solution, the outer surface of the connecting and positioning rod fits with the inner side of the connecting and positioning plate, and the outer surface of the connecting and positioning plate fits with the inner side of the fixing groove.

[0011] In a further technical solution, fixed guide limit frames are symmetrically provided on both sides of the upper frame, and the inner side of the fixed guide limit frame is in contact with the outer side of the surface of the connecting mounting arm.

[0012] In a further technical solution, a plurality of anti-slip grooves are provided on the outer side of the surface of the second turntable.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the cooperation between the fixing and fastening mechanism and the connection and positioning plate, the upper frame and the lower frame can be quickly and stably connected and fixed during the process of connecting the upper frame and the lower frame, so that the diffusion film and the light guide plate can be stably installed and used, and the overall structure is simple and the operation is convenient and fast;

[0015] 2. Through the cooperation between the fixed slots and the fixed protrusions, the connection stability between the upper frame and the lower frame can be further improved, so that the diffusion film and the light guide plate can be stably placed between the upper frame and the lower frame for use, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a backlight source fixing structure according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall exploded structure of a backlight source fixing structure according to an embodiment of the utility model;

[0018] Figure 3 This is a backlight fixing structure of the utility model embodiment. Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of a fixing protrusion structure of a backlight source fixing structure in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Upper frame; 2. Diffusion film; 3. Light guide plate; 4. Lower frame; 5. Fixing and fastening mechanism; 6. Connecting and positioning plate; 7. Fixing groove; 8. Fixing slot; 9. Fixing protrusion; 10. First through groove; 11. Second through groove; 12. T-shaped positioning rod; 13. First turntable; 14. Second turntable; 15. Movable connecting arm; 16. Connecting and mounting arm; 17. Fixed connecting block; 18. Connecting and positioning rod; 19. Fixed guide limit frame; 20. Anti-slip groove. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Example:

[0024] like Figure 1-Figure 4 As shown, a fixing structure of a backlight source includes an upper frame 1, a diffusion film 2 is provided on the inner side of the upper frame 1, a light guide plate 3 is provided at the bottom of the diffusion film 2, a lower frame 4 is provided on the inner side of the upper frame 1, the outer surfaces of the light guide plate 3 and the diffusion film 2 are in contact with the inner side of the lower frame 4, both sides of the upper frame 1 are fixedly connected with a fixing fastening mechanism 5, both sides of the lower frame 4 are symmetrically provided with a connecting positioning plate 6, and both sides of the upper frame 1 are symmetrically provided with fixing grooves 7.

[0025] The working principle of the above technical solution is as follows:

[0026] During use, the diffusion film 2 and the light guide plate 3 are placed on the inner side of the lower frame 4, and the upper frame 1 is connected to the lower frame 4. The upper frame 1 can be sleeved on the outer side of the surface of the lower frame 4 and limit the edge of the diffusion film 2. At the same time, the connecting positioning plate 6 can be inserted into the inner side of the fixing groove 7. Then the fixing and fastening mechanism 5 is quickly adjusted so that the fixing and fastening mechanism 5 can quickly connect and cooperate with the connecting positioning plate 6, connect and fix the upper frame 1 and the lower frame 4, and then fix the diffusion film 2 and the light guide plate 3, so that the diffusion film 2 and the light guide plate 3 can be used stably.

[0027] In another embodiment, if Figure 1 and Figure 4 As shown, a fixing slot 8 is provided at the top of the lower frame 4 , and a fixing protrusion 9 is provided at the inner side of the upper frame 1 .

[0028] When the upper frame 1 is connected to the lower frame 4 , the fixing protrusion 9 can be stably inserted into the inner side of the fixing slot 8 , so that the upper frame 1 and the lower frame 4 are in a stable connection state.

[0029] In another embodiment, if Figure 1 and Figure 2As shown, a first through slot 10 is formed at the front end of the upper frame 1 , and a second through slot 11 is formed at the front end of the lower frame 4 .

[0030] It is convenient to connect with external lines through the first through slot 10 and the second through slot 11 .

[0031] In another embodiment, if Figure 3 As shown, the fixing and fastening mechanism 5 includes a T-shaped positioning rod 12, and the outer side of the surface of the T-shaped positioning rod 12 is movably sleeved with a first turntable 13 and a second turntable 14, and a movable connecting arm 15 is movably connected between the first turntable 13 and the second turntable 14 via a connecting rod, and the other end of the movable connecting arm 15 is connected to a connecting mounting arm 16 via a connecting rod, and the other end of the connecting mounting arm 16 is fixedly connected to a fixed connecting block 17, and a connecting positioning plug rod 18 is symmetrically provided on the side of the fixed connecting block 17 away from the connecting mounting arm 16.

[0032] It is convenient to rotate the second turntable 14, drive the first turntable 13 to rotate, push and deflect the movable connecting arm 15, thereby pushing the connecting installation arm 16, driving the fixed connecting block 17 and the connecting positioning rod 18 to move, so that the connecting positioning rod 18 can be inserted into the interior of the connecting positioning plate 6, and then the upper frame 1 and the lower frame 4 can be quickly connected and fixed, and vice versa, the upper frame 1 and the lower frame 4 can also be quickly disassembled.

[0033] In another embodiment, if Figure 3 As shown, the outer surface of the connection positioning rod 18 fits with the inside of the connection positioning plate 6 , and the outer surface of the connection positioning plate 6 fits with the inner side of the fixing groove 7 .

[0034] The connection and positioning rod 18 can be stably inserted into the interior of the connection and positioning plate 6 for connection and fixing, and the operation is convenient.

[0035] In another embodiment, if Figure 3 As shown, fixed guide limit frames 19 are symmetrically provided on both sides of the upper frame 1 , and the inner side of the fixed guide limit frame 19 is in contact with the outer side of the surface of the connecting mounting arm 16 .

[0036] The fixed guide limit frame 19 can guide and limit the connection and installation arm 16, so that the connection and installation arm 16 can move horizontally inside the fixed guide limit frame 19, which is easy to operate.

[0037] In another embodiment, if Figure 3 As shown, a plurality of anti-slip grooves 20 are provided on the outer side of the surface of the second rotating disk 14 .

[0038] This facilitates the anti-slip effect when the second rotating disk 14 is rotated, thereby enabling the second rotating disk 14 to be rotated stably.

[0039] The working principle of the utility model is as follows: during use, the diffusion film 2 and the light guide plate 3 are placed inside the upper frame 1, and then the lower frame 4 is placed on the top of the upper frame 1, so that the fixing protrusion 9 can be inserted into the inner side of the fixing slot 8, and at the same time, under the action of the fixing groove 7, it can be sleeved on the outer surface of the connecting positioning plate 6, and the outer part of the upper frame 1 can cover the outer surface of the lower frame 4. Then, the second turntable 14 is rotated to drive the first turntable 13 to rotate, and the movable connecting arm 15 is pushed and deflected, so that the connecting installation arm 16 is pushed, and the fixed connecting block 17 and the connecting positioning rod 18 are driven to move, so that the connecting positioning rod 18 can be inserted into the inside of the connecting positioning plate 6, and then the upper frame 1 and the lower frame 4 can be quickly connected and fixed, and vice versa, the upper frame 1 and the lower frame 4 can also be quickly disassembled. The overall structure is simple, and the overall structure can be used in a stable state, and the operation is convenient.

[0040] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A backlight fixing structure, comprising an upper frame (1), characterized in that: A diffusion film (2) is provided on the inner side of the upper frame (1), a light guide plate (3) is provided at the bottom of the diffusion film (2), a lower frame (4) is provided on the inner side of the upper frame (1), the outer sides of the surfaces of the light guide plate (3) and the diffusion film (2) are in contact with the inner side of the lower frame (4), both sides of the upper frame (1) are fixedly connected with a fixing fastening mechanism (5), both sides of the lower frame (4) are symmetrically provided with a connecting positioning plate (6), and both sides of the upper frame (1) are symmetrically provided with a fixing groove (7).

2. The backlight fixing structure according to claim 1, characterized in that: A fixing slot (8) is provided at the top of the lower frame (4), and a fixing protrusion (9) is provided on the inner side of the upper frame (1).

3. The backlight fixing structure according to claim 1, characterized in that: The front end of the upper frame (1) is provided with a first through slot (10), and the front end of the lower frame (4) is provided with a second through slot (11).

4. The backlight fixing structure according to claim 1, characterized in that: The fixing and fastening mechanism (5) comprises a T-shaped positioning rod (12), the outer side of the surface of which is movably sleeved with a first rotating disk (13) and a second rotating disk (14), a movable connecting arm (15) is movably connected between the first rotating disk (13) and the second rotating disk (14) via a connecting rod, the other end of the movable connecting arm (15) is connected to a connecting mounting arm (16) via a connecting rod, the other end of the connecting mounting arm (16) is fixedly connected to a fixed connecting block (17), and a connecting positioning plug rod (18) is symmetrically provided on one side of the fixed connecting block (17) away from the connecting mounting arm (16).

5. The backlight fixing structure according to claim 4, characterized in that: The outer surface of the connecting and positioning rod (18) fits in with the inside of the connecting and positioning plate (6), and the outer surface of the connecting and positioning plate (6) fits in with the inner side of the fixing groove (7).

6. The backlight fixing structure according to claim 4, characterized in that: Fixed guide limit frames (19) are symmetrically provided on both sides of the upper frame (1), and the inner side of the fixed guide limit frame (19) is in contact with the outer side of the surface of the connecting mounting arm (16).

7. The backlight fixing structure according to claim 4, characterized in that: A plurality of anti-slip grooves (20) are provided on the outer side of the surface of the second rotating disk (14).

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