An LED backlight structure

Abstract

This utility model provides an LED backlight structure, relating to the field of LED backlight technology. It includes a frame, with a backplate fixedly mounted on one side of the inner wall of the frame, and a light source plate slidably mounted on the other side of the inner wall. A mounting plate is also provided on one side of the frame. The frame includes three closed sides and one open side, with connecting buckles fixedly mounted at both the upper and lower ends of the open side. This structure utilizes a copper and aluminum composite backplate design to achieve efficient heat conduction and uniform heat dissipation, effectively extending the lifespan of the LED light source. The hollow heat sink structure increases the heat dissipation area and heat flow circulation, preventing light leakage. The overall structure is compact, eliminating the need for fans and air ducts, meeting the requirements of thin, quiet devices. The quick-installation mechanism of the mounting plate and connecting buckles ensures rapid disassembly and assembly of the light source plate, improving maintenance efficiency and reducing operating costs. It is suitable for applications requiring frequent light source replacement. The structure is lightweight, has efficient heat dissipation, is easy to assemble, and possesses good environmental adaptability.

Description

Technical Field

[0001] This utility model relates to the field of LED backlight technology, and in particular to an LED backlight structure. Background Technology

[0002] LED backlight structures are widely used in LCD monitors, televisions, lighting panels, and other fields. Their heat dissipation performance directly affects the stability of the light source and the lifespan of the entire device. Currently, traditional LED backlight structures mostly achieve heat dissipation by opening heat dissipation holes on the back panel. However, this method has certain drawbacks. The heat dissipation holes may cause light leakage, affecting the uniformity of backlight. Although some products use fans to assist in heat dissipation, the overall structure is complex and the volume is large, which is not conducive to the design of thin and light products. In addition, there are problems such as noise and inconvenience in maintenance. Utility Model Content

[0003] Therefore, it is necessary to provide an LED backlight structure to address the problems raised in the background art.

[0004] This utility model provides an LED backlight structure, including: a frame, a back plate fixedly disposed on one side of the inner wall of the frame, a light source plate slidably disposed on the other side of the inner wall of the frame, and a mounting plate disposed on one side of the frame; the frame includes three closed sides and one open side, with connecting buckles fixedly disposed at both the upper and lower ends of the open side, and guide grooves provided at both the upper and lower ends of the inner wall of the frame.

[0005] In one embodiment, the mounting plate includes a fixing frame, and clamps are rotatably disposed in the slots at both the upper and lower ends of the fixing frame. The clamps are arranged vertically opposite each other, and a connecting groove is provided on one side of each clamp. Rotating shafts are fixedly disposed on both sides of the clamps, and the two rotating shafts are respectively rotatably connected to the two sides of the inner wall of the upper and lower slots of the fixing frame. A first spring is fixedly disposed on one side of each of the upper and lower clamps, and the other end of each first spring is fixedly connected to the upper and lower sides of the inner wall of the slot of the fixing frame.

[0006] In one embodiment, the mounting bracket further includes a handle. A through-hole groove is provided on one side of the inner wall of the mounting bracket. A cylindrical connecting rod is slidably disposed within the groove. A slider is fixedly disposed at one end of the connecting rod. A second spring is fixedly disposed at both ends of one side of the slider. The other end of the second spring is fixedly connected to one side of the inner wall of the groove. The other end of the connecting rod extends to the outside of the mounting bracket, and a linkage ring is rotatably disposed at its top. The other end of the linkage ring is connected to the center of the handle. Support blocks are fixedly disposed on both sides of the outer wall of the mounting bracket, near the handle.

[0007] In one embodiment, the backplate includes a copper plate, on which a plurality of heat sinks are fixedly disposed, and an aluminum plate is fixedly disposed on the copper plate, the surface of which has a plurality of mounting holes that match the heat sinks.

[0008] In one embodiment, the heat sink has a cylindrical structure with a hollow structure on one side and a completely enclosed structure on the other side.

[0009] In one embodiment, both the upper and lower ends of the light source plate are installed in the upper and lower guide grooves on the inner wall of the frame.

[0010] This utility model has the following beneficial effects:

[0011] 1. This utility model can effectively solve the technical problems existing in the heat dissipation performance, size control and maintenance convenience of the existing backlight device, and has the following significant advantages: First, by setting a composite backplate structure of copper plate and aluminum plate, the copper plate has excellent thermal conductivity, which can quickly conduct the heat generated by the LED light source to the aluminum plate, and then the heat is quickly dissipated through multiple heat dissipation heads set on it, which significantly improves the overall heat dissipation efficiency and extends the service life of the light source. Second, the heat dissipation head is designed as a hollow structure, which increases the heat dissipation surface area and the heat conduction path. Compared with the traditional open heat dissipation method, it can avoid the problem of light leakage and improve the heat dissipation uniformity and heat diffusion efficiency. Third, compared with the structure of using fan-assisted heat dissipation, this structure does not require the introduction of additional driving components and air duct components. The overall structure is more compact and can meet the integrated application of electronic devices with high requirements for thinness and quietness, reducing the complexity of the overall design.

[0012] 2. In addition, by setting up a quick-installation and quick-disassembly mechanism that cooperates with the mounting plate and connecting buckle, the light source board can be quickly replaced and assembled, which significantly improves the efficiency of later maintenance and reduces the operation and maintenance cost. It is especially suitable for scenarios that require frequent replacement or debugging of light source components. This utility model not only has the characteristics of compact structure, light weight and high heat dissipation efficiency, but also has good assembly convenience and environmental adaptability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main axial structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the axonal structure of the main body of this utility model;

[0015] Figure 3 This is a schematic diagram of the exploded structure of the back plate of this utility model;

[0016] Figure 4 This is a cross-sectional view of the mounting plate portion of this utility model.

[0017] Figure 5 This is an exploded structural diagram of the mounting plate portion of this utility model;

[0018] Figure 6 For the present utility model Figure 4 Enlarged structural diagram at point A.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Frame; 11. Connecting buckle; 2. Mounting plate; 20. Fixing bracket; 21. Clamp; 22. First spring; 23. Rotating shaft; 24. Slider; 25. Second spring; 26. Handle; 27. Support block; 28. Linkage ring; 29. ​​Connecting rod; 3. Back plate; 31. Copper plate; 32. Heat sink; 33. Aluminum plate; 4. Guide groove; 5. Light source plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described clearly and completely below with reference to the accompanying drawings. Obviously, the specific details described below are only a part of the embodiments of this utility model, and this utility model can be implemented in many other embodiments different from those described herein. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] Please refer to Figure 1-2This utility model provides an LED backlight structure, including a frame 1. A back plate 3 is fixedly installed on one side of the inner wall of the frame 1, and a light source plate 5 is slidably installed on the other side of the inner wall of the frame 1. A mounting plate 2 is installed on one side of the frame 1. The frame 1 includes three closed sides and one open side. Connecting buckles 11 are fixedly installed at both the upper and lower ends of the open side. Guide grooves 4 are opened at both the upper and lower ends of the inner wall of the frame 1. The upper and lower ends of the light source plate 5 are installed in the upper and lower guide grooves 4 of the inner wall of the frame 1.

[0025] The frame 1, as the main support of the entire LED backlight structure, consists of three closed sides and one open side, forming a stable spatial structure. A back plate 3 is fixedly installed on one side of the inner wall of the frame 1 to provide structural support for the light source board 5 and assist in heat dissipation. Guide grooves 4 are provided at the upper and lower ends of the inner wall of the frame 1. The upper and lower ends of the light source board 5 are slidably installed in the guide grooves 4, which not only ensures the smooth sliding of the light source board 5 during installation, but also facilitates its subsequent disassembly and positioning. A connecting buckle 11 is provided on the open side of the frame 1. Through cooperation with the clamp 21 of the mounting plate 2, it can quickly lock and release. After the light source board 5 is installed, the operator aligns the clamps 21 at the upper and lower ends of the mounting plate 2 with the connecting buckle 11, and pushes the slider 24 to close the clamps 21 under the action of the thrust, thereby realizing the stable locking of the connecting buckle 11, simplifying the installation steps, improving assembly efficiency, and facilitating subsequent maintenance and replacement operations.

[0026] Please refer to Figure 1-6 This utility model provides an LED backlight structure. The mounting plate 2 includes a fixing frame 20. The upper and lower ends of the fixing frame 20 are each rotatably equipped with a clamp 21. The clamps 21 are arranged opposite each other and have a connecting groove on one side. The two sides of the clamps 21 are fixedly equipped with rotating shafts 23. The two rotating shafts 23 are respectively rotatably connected to the two sides of the inner wall of the upper and lower openings of the fixing frame 20. The two clamps 21 are each fixedly equipped with a first spring 22 on one side. The other end of the first spring 22 is fixedly connected to the upper and lower sides of the inner wall of the opening of the fixing frame 20. The fixing frame 20 also includes a handle 26. The inner wall of the fixing frame 20 has a through-hole sliding groove on one side. A cylindrical connecting rod 29 is slidably arranged in the sliding groove. A slider 24 is fixedly equipped at one end of the connecting rod 29. The two ends of the slider 24 are each fixedly equipped with a second spring 25. The other end of the second spring 25 is fixedly connected to one side of the inner wall of the sliding groove.

[0027] The other end of the connecting rod 29 extends to the outside of the fixed frame 20, and a linkage ring 28 is rotatably provided at the top. The other end of the linkage ring 28 is connected to the center of the handle 26. Support blocks 27 are fixedly provided on both sides of the outer wall of the fixed frame 20 near the handle 26.

[0028] Specifically, the mounting plate 2 is mainly used to connect and fix the light source plate 5. Its mounting bracket 20 has upper and lower clamps 21 fixedly installed at both ends. The clamps 21 are movably connected to the slotted structure inside the mounting bracket 20 via a rotating shaft 23, and are held in a normally open state by a first spring 22, ensuring that the connecting buckle 11 can be smoothly inserted into the connecting slot on one side of the clamp 21. The mounting bracket 20 has a sliding groove, in which a connecting rod 29 is slidably installed. One end of the connecting rod 29 is connected to the first spring 22 via a slider 24. Two springs 25 enable the connecting rod 29 to slide elastically. The other end is connected to the handle 26 via a linkage ring 28. Support blocks 27 are provided on both sides of the handle 26 to temporarily support it during operation and control the opening and closing of the clamp 21. During installation, the operator can grasp the handle 26 and pull it outwards, causing the linkage ring 28 to drive the connecting rod 29 to slide, pushing the slider 24 to compress the second spring 25. The contact area between the front end of the slider 24 and the clamp 21 is an arc-shaped structure. During the process, the two sides of the chuck 21 can be opened smoothly. The chuck 21 is opened outward by the pivot 23, and the handle 26 is rotated to support and position itself between the support blocks 27. At this time, the connecting buckle 11 on the light source plate 5 can be smoothly inserted into the opening of the chuck 21. After installation, the operator releases the handle 26. After the handle 26 is removed from the support block 27, the second spring 25 returns to its original position and pushes the slider 24 back to its original position. The chuck 21 closes inward under the pressure of the slider 24, automatically clamping the connecting buckle 11 and completing the locking of the mounting plate 2. During the fixing process, during the disassembly process, the operator also pulls the handle 26 backward to make the slider 24 push the clamp 21 open again. The clamp 21 releases the connecting buckle 11, and the handle 26 is rotated and fixed between the support blocks 27 to maintain the open state. Then the connecting buckle 11 can be pulled out directly to remove the mounting plate 2. This structure uses the normal opening of the clamp 21 and the reset closing of the slider 24 to achieve rapid clamping and release. With the help of the arc contact surface to reduce structural wear, it has the advantages of compact structure, simple operation and easy maintenance.

[0029] Please refer to Figure 1-3 This utility model provides an LED backlight structure. The back plate 3 includes a copper plate 31, on which a plurality of heat sinks 32 are fixedly disposed. An aluminum plate 33 is fixedly disposed on the copper plate 31, and the surface of the aluminum plate 33 is provided with a plurality of mounting holes that match the heat sinks 32. The heat sinks 32 are cylindrical structures, with one side being a hollow structure and the other side being a completely closed structure.

[0030] Specifically, the copper plate 31 in the backplate 3 has excellent thermal conductivity, which is used to quickly and evenly conduct the heat generated by the light source to multiple cylindrical heat sinks 32. One end of the heat sink 32 is hollow, which helps to enhance internal air convection and improve heat dissipation efficiency; the other end is closed, which can effectively prevent heat from accumulating in the reverse direction and avoid light leakage. The copper plate 31 is fixedly set on the inner wall of the frame 1, and its thickness is about one-third of the thickness of the aluminum plate 33. While ensuring thermal conductivity, it also takes into account the thinness of the overall structure. The aluminum plate 33 is fixedly set on the surface of the copper plate 31 and is stably fixed through multiple mounting holes that match the heat sinks 32, which plays a structural support role and further improves the overall stability. This composite backplate structure is compact and lightweight. While significantly improving the heat dissipation performance of the LED light source, it effectively avoids the performance degradation caused by heat accumulation, thereby ensuring the stability and reliability of the LED backlight structure during long-term use.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications, substitutions, and improvements without departing from the concept of this utility model, and these should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the claims.

Claims

1. An LED backlight structure, characterized by, The frame (1) includes a back plate (3) fixedly installed on one side of the inner wall of the frame (1), a light source plate (5) slidably installed on the other side of the inner wall of the frame (1), and an installation plate (2) installed on one side of the frame (1). The frame (1) includes three closed sides and one open side. Connecting buckles (11) are fixedly installed at both the upper and lower ends of the open side. Guide grooves (4) are opened at both the upper and lower ends of the inner wall of the frame (1).

2. The LED backlight structure of claim 1, wherein, The mounting plate (2) includes a fixing frame (20). A clamp (21) is rotatably installed in the slots at both the upper and lower ends of the fixing frame (20). The clamps (21) are arranged opposite each other, and a connecting groove is provided on one side of each clamp. A rotating shaft (23) is fixedly installed on both sides of the clamp (21). The two rotating shafts (23) are rotatably connected to the two sides of the inner wall of the upper and lower slots of the fixing frame (20). A first spring (22) is fixedly installed on one side of each of the two clamps (21). The other end of the first spring (22) is fixedly connected to the upper and lower sides of the inner wall of the slot of the fixing frame (20).

3. The LED backlight structure of claim 2, wherein, The fixing frame (20) also includes a handle (26). The inner wall of the fixing frame (20) is provided with a through groove. A cylindrical connecting rod (29) is slidably arranged in the groove. A slider (24) is fixedly arranged at one end of the connecting rod (29). A second spring (25) is fixedly arranged at both ends of one side of the slider (24). The other end of the second spring (25) is fixedly connected to one side of the inner wall of the groove. The other end of the connecting rod (29) extends to the outside of the fixing frame (20) and a linkage ring (28) is rotatably arranged at the top. The other end of the linkage ring (28) is connected to the center of the handle (26). Support blocks (27) are fixedly arranged on both sides of the outer wall of the fixing frame (20) near the handle (26).

4. The LED backlight structure of claim 1, wherein, The back plate (3) includes a copper plate (31), on which a plurality of heat sinks (32) are fixedly disposed, and an aluminum plate (33) is fixedly disposed on the copper plate (31). The surface of the aluminum plate (33) is provided with a plurality of mounting holes that match the heat sinks (32).

5. The LED backlight structure of claim 4, wherein, The heat sink (32) has a cylindrical structure, with one side being hollow and the other side being completely enclosed.

6. The LED backlight structure of claim 1, wherein, The upper and lower ends of the light source plate (5) are both installed in the upper and lower guide grooves (4) on the inner wall of the frame (1).

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