Panel structure of LED backlight source

Abstract

The utility model provides a panel structure of a light-emitting diode (LED) backlight source, which relates to the technical field of backlight sources, and comprises a frame, a support frame is arranged in the frame, the support frame is connected with the frame in a sliding mode, a light source plate and a light guide plate are installed on the inner wall of the support frame, notches are arranged on the left side face and the right side face of the support frame, and the light source plate and the light guide plate are arranged in the notches. The left side face and the right side face of the frame are both provided with limiting grooves corresponding to the limiting blocks, the limiting blocks are connected with the corresponding limiting grooves in a clamped mode, and limiting springs are fixed to the side faces, close to the inner walls of the notches, of the limiting blocks. According to the panel structure of the LED backlight source, the limiting blocks are arranged, and the corresponding limiting grooves are formed in the side faces of the frame, so that the limiting blocks and the limiting grooves can be connected in a clamped mode, a common threaded connection mode is changed, the purpose of quick disassembly is achieved, and the problem that the LED backlight source is inconvenient to replace and disassemble in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a panel structure, in particular to a panel structure of an LED backlight source, belonging to the technical field of backlight sources. Background Art

[0002] The backlight is a light source located behind the LCD display. Its luminous effect will directly affect the visual effect of the LCD display module. The LCD display itself does not emit light. It displays graphics or the result of its modulation of light.

[0003] The backlight source is mainly composed of a frame and a light source board, a light guide plate, an optical film, etc. arranged inside the frame. The LED backlight source is the most important component of the backlight source and also the most easily damaged component. The LED backlight source in the prior art generally adopts a closed frame setting, and the connection method also adopts a threaded connection. When the LED backlight source needs to be replaced or repaired, the staff uses tools to remove the cover from the frame. The whole process is time-consuming and labor-intensive, and the maintenance efficiency is low. In addition, the LED backlight panel will emit heat during use. Due to the design of the common LED backlight closed frame, its heat dissipation effect is not good. As the use time increases, the high temperature will affect the imaging effect of the light source board. Continuous high temperature may also cause the internal solder joints of the light source board to have cold solder joints, causing damage to the light source board. Utility Model Content

[0004] (1) Technical issues solved

[0005] The utility model provides a panel structure of an LED backlight source, so as to solve the problem in the prior art that the LED backlight source is inconvenient to replace and disassemble, and the problem that the LED backlight source has poor heat dissipation during use.

[0006] (2) Technical solution

[0007] The utility model is implemented through the following technical scheme: a panel structure of an LED backlight source, comprising a frame, a support frame is arranged inside the frame, the support frame is slidably connected to the frame, a light source board and a light guide plate are installed on the inner wall of the support frame, notches are provided on the left and right sides of the support frame, limiting blocks are slidably connected in the notches, limiting grooves corresponding to the limiting blocks are provided on the left and right sides of the frame, the limiting blocks are clamped with the corresponding limiting grooves, a limiting spring is fixed on one side of the limiting block close to the inner wall of the notch, and the other end of the limiting spring is fixed to the support frame;

[0008] A heat dissipation device is arranged inside the frame, and the heat dissipation device is in contact with the light source board.

[0009] Preferably, the heat dissipation device includes a heat sink, which is in contact with the light source board, and heat dissipation silicone grease is applied between the heat sink and the light source board. A plurality of heat dissipation fins are installed on the side of the heat sink, and a heat dissipation pipe is fixed between the heat dissipation fins and the heat sink, which is beneficial to the stability of the heat dissipation fins. The heat on the light source board is transferred to the heat dissipation pipe through the heat sink, and the heat dissipation pipe transfers the heat to the heat dissipation fins and dissipates the heat into the air, thereby realizing rapid heat dissipation and cooling.

[0010] Preferably, two supporting plates are fixed on the back of the frame, a pressing plate is arranged between the frame and the supporting plates, the pressing plate is in contact with the heat dissipation plate, an auxiliary spring is fixed to the right side of the pressing plate, an auxiliary plate is fixed to the other end of the auxiliary spring, the other side of the auxiliary plate is rotatably connected with a threaded rod, the threaded rod is threadedly connected to the supporting plate, which is beneficial to the stability of the pressing plate, and the auxiliary plate is driven by the rotation of the threaded rod to squeeze the pressing plate, so that the pressing plate squeezes the heat dissipation plate, and the auxiliary heat dissipation plate is in close contact with the light source board, thereby improving the heat dissipation efficiency.

[0011] Preferably, sliders are fixed to the upper and lower inner walls of the frame, and sliding grooves are provided on the upper and lower side surfaces of the support plate. The sliders are slidably connected to the sliding grooves, which is beneficial to the stability of the sliders. The sliding connection between the sliders and the sliding grooves assists the installation of the support frame.

[0012] Preferably, the bottom end of the cross section of the side of the limit block close to the heat sink is lower than the support frame, and the bottom end of the cross section of the side of the limit block away from the heat sink is higher than the support frame, which is beneficial to the stability of the limit block, facilitates the use of the limit block, and maintains the state of the limit block after the limit block is snapped in.

[0013] Preferably, a track block is fixed on the side of the limit block, a track groove is opened on the inner side of the slot, a track block is slidably connected in the track groove, and the track block is slidably connected to the track groove, which is beneficial to the stability of the limit block and prevents the limit block from escaping from the slot under the elastic force of the limit spring.

[0014] Preferably, the size of the heat sink is larger than that of the light source board, and the height of the heat sink fin is lower than the distance from the heat sink to the support plate, which is beneficial to the stability of the heat sink and improves the overall heat dissipation efficiency.

[0015] The utility model provides a panel structure of an LED backlight source, which has the following beneficial effects:

[0016] 1. The panel structure of the LED backlight source is provided with a limit block and a corresponding limit groove is opened on the side of the frame, so that the limit block and the limit groove can be snapped together, changing the common threaded connection method to achieve the purpose of quick disassembly, and solving the problem that the LED backlight source in the prior art is not easy to replace and disassemble.

[0017] 2. The panel structure of the LED backlight source, by providing a heat dissipation device, helps the light source panel to quickly dissipate the internal heat under the joint heat dissipation effect of the heat dissipation plate, heat pipe and heat dissipation fins, realizes rapid heat dissipation and cooling, and thus maintains the normal working state of the LED backlight source during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the framework of the utility model;

[0019] Figure 2 This is a front view of the heat dissipation device of the utility model;

[0020] Figure 3 It is a cross-sectional view of the top view of the auxiliary plate of the utility model;

[0021] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0022] Description of Reference Numerals

[0023] 1. Frame; 2. Support frame; 3. Light source board; 4. Light guide plate; 5. Limit block; 6. Limit spring; 7. Heat dissipation device;

[0024] 701, heat sink; 702, heat sink fin; 703, heat sink pipe;

[0025] 8. Support plate; 9. Pressure plate; 10. Auxiliary spring; 11. Auxiliary plate; 12. Threaded rod; 13. Slider; 14. Track block. DETAILED DESCRIPTION

[0026] The embodiment of the utility model provides a panel structure of an LED backlight source.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including a frame 1, a support frame 2 is arranged inside the frame 1, the support frame 2 is slidably connected to the frame 1, a light source board 3 and a light guide plate 4 are installed on the inner wall of the support frame 2, slots are provided on the left and right sides of the support frame 2, and limiting blocks 5 are slidably connected in the slots, and limiting grooves corresponding to the limiting blocks 5 are provided on the left and right sides of the frame 1, and the limiting blocks 5 are snap-fitted with the corresponding limiting grooves, and a limiting spring 6 is fixed on one side of the limiting block 5 close to the inner wall of the slot, and the other end of the limiting spring 6 is fixed to the support frame 2, and a heat dissipation device 7 is arranged inside the frame 1, and the heat dissipation device 7 is in contact with the light source board 3.

[0028] See also Figure 2 , Figure 3 and Figure 4The heat dissipation device 7 includes a heat sink 701, which is in contact with the light source board 3. Heat dissipation silicone grease is applied between the heat sink 701 and the light source board 3. A plurality of heat dissipation fins 702 are installed on the side of the heat sink 701. A heat dissipation pipe 703 is fixed between the heat dissipation fins 702 and the heat sink 701, which is beneficial to the stability of the heat dissipation fins 702. The heat on the light source board 3 is transferred to the heat dissipation pipe 703 through the heat sink 701. The heat dissipation pipe 703 transfers the heat to the heat dissipation fins 702 and dissipates it into the air, thereby realizing rapid heat dissipation and cooling. The size of the heat sink 701 is larger than the size of the light source board 3. The height of the heat dissipation fins 702 is lower than the distance from the heat sink 701 to the support plate 8, which is beneficial to the stability of the heat sink 701 and improves the overall heat dissipation efficiency.

[0029] See also Figure 2 , Figure 3 and Figure 4 Two support plates 8 are fixed on the back of the frame 1, and a pressing plate 9 is arranged between the frame 1 and the support plate 8. The pressing plate 9 is in contact with the heat sink 701. An auxiliary spring 10 is fixed to the right side of the pressing plate 9, and an auxiliary plate 11 is fixed to the other end of the auxiliary spring 10. The other side of the auxiliary plate 11 is rotatably connected with a threaded rod 12, and the threaded rod 12 is threadedly connected to the support plate 8, which is beneficial to the stability of the pressing plate 9. The rotation of the threaded rod 12 drives the auxiliary plate 11 to squeeze the pressing plate 9, so that the pressing plate 9 squeezes the heat sink 701, and the auxiliary heat sink 701 is in close contact with the light source board 3, thereby improving the heat dissipation efficiency.

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The upper and lower inner walls of the frame 1 are fixed with sliders 13, and the upper and lower sides of the support plate 8 are provided with sliding grooves. The sliders 13 are slidably connected with the sliding grooves, which is beneficial to the stability of the sliders 13. The installation of the support frame 2 is assisted by the sliding connection between the sliders 13 and the sliding grooves. The bottom end of the cross section of the side of the limit block 5 close to the heat dissipation plate 701 is lower than the support frame 2, and the bottom end of the cross section of the side of the limit block 5 away from the heat dissipation plate 701 is higher than the support frame 2, which is beneficial to the stability of the limit block 5, and the use of the limit block 5 is convenient. At the same time, the state of the limit block 5 is maintained after the limit block 5 is completed. The side of the limit block 5 is fixed with a track block 14, and the inner side of the notch is provided with a track groove, and the track block 14 is slidably connected in the track groove. The track block 14 is slidably connected with the track groove, which is beneficial to the stability of the limit block 5 and prevents the limit block 5 from being separated from the notch under the elastic force of the limit spring 6.

[0031] When the utility model is in use: firstly, the heat dissipation device 7 is installed so that the pressure plate 9 is in contact with the heat dissipation plate 701, and then the support frame 2 with the light source board 3 and the light guide plate 4 installed is placed in the frame 1 and pushed into place, and the limit block 5 pops out from the notch and engages with the limit groove, thereby changing the common threaded connection method to achieve the purpose of quick disassembly, and solving the problem that the LED backlight source is not easy to replace and disassemble in the prior art.

[0032] When long-term use causes heat to appear inside the light source board 3, the heat on the light source board 3 is transferred to the heat pipe 703 through the heat sink 701, and the heat pipe 703 transfers the heat to the heat sink fins 702 and dissipates it into the air, thereby achieving rapid heat dissipation and cooling, thereby maintaining the normal working state of the LED backlight source during long-term operation.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A panel structure of an LED backlight source, comprising a frame (1), characterized in that: A support frame (2) is arranged inside the frame (1), the support frame (2) is slidably connected to the frame (1), a light source board (3) and a light guide plate (4) are installed on the inner wall of the support frame (2), the left and right sides of the support frame (2) are provided with notches, and limit blocks (5) are slidably connected in the notches, the left and right sides of the frame (1) are provided with limit grooves corresponding to the limit blocks (5), the limit blocks (5) are snap-fitted with the corresponding limit grooves, a limit spring (6) is fixed on one side of the limit block (5) close to the inner wall of the notch, and the other end of the limit spring (6) is fixed to the support frame (2); A heat dissipation device (7) is provided inside the frame (1), and the heat dissipation device (7) is in contact with the light source panel (3).

2. The panel structure of an LED backlight source according to claim 1, characterized in that: The heat dissipation device (7) comprises a heat dissipation plate (701), the heat dissipation plate (701) is in contact with the light source board (3), heat dissipation silicone grease is applied between the heat dissipation plate (701) and the light source board (3), a plurality of groups of heat dissipation fins (702) are installed on the side of the heat dissipation plate (701), and a heat dissipation pipe (703) is fixed between the heat dissipation fins (702) and the heat dissipation plate (701).

3. The panel structure of an LED backlight source according to claim 1, characterized in that: Two support plates (8) are fixed on the back of the frame (1), a pressure plate (9) is arranged between the frame (1) and the support plate (8), the pressure plate (9) is in contact with the heat dissipation plate (701), an auxiliary spring (10) is fixed on the right side of the pressure plate (9), an auxiliary plate (11) is fixed to the other end of the auxiliary spring (10), and a threaded rod (12) is rotatably connected to the other side of the auxiliary plate (11), and the threaded rod (12) is threadedly connected to the support plate (8).

4. The panel structure of an LED backlight source according to claim 3, characterized in that: Slide blocks (13) are fixed to the upper and lower inner side walls of the frame (1), and slide grooves are provided on the upper and lower side surfaces of the support plate (8), and the slide blocks (13) are slidably connected to the slide grooves.

5. The panel structure of an LED backlight source according to claim 1, characterized in that: The bottom end of the cross section of the side of the limit block (5) close to the heat dissipation plate (701) is lower than the support frame (2), and the bottom end of the cross section of the side of the limit block (5) away from the heat dissipation plate (701) is higher than the support frame (2).

6. The panel structure of an LED backlight source according to claim 1, characterized in that: A track block (14) is fixed on the side of the limit block (5), a track groove is provided on the inner side of the notch, a track block (14) is slidably connected in the track groove, and the track block (14) is slidably connected to the track groove.

7. The panel structure of an LED backlight source according to claim 2, characterized in that: The size of the heat dissipation plate (701) is larger than the size of the light source plate (3), and the height of the heat dissipation fins (702) is lower than the distance from the heat dissipation plate (701) to the support plate (8).

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