Combined LED backlight source
By using a modular LED backlight design with modular interfaces and heat dissipation structures, the problem of scrapping the entire backlight due to local damage is solved, enabling flexible assembly and rapid heat dissipation, thus improving efficiency and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing LED backlights are prone to failure when some light-emitting diodes are damaged, which can lead to the entire backlight being scrapped and difficult to replace or repair, thus affecting efficiency.
It adopts a modular LED backlight design, which utilizes the standardized interface of the backlight module and assembly components to achieve free horizontal or vertical expansion. It forms a complete circuit through interconnection of conductive contacts and conductive sockets, and forms an independent air duct system through the heat dissipation structure, which simplifies the assembly process and supports flexible module replacement and rapid heat dissipation.
It enables flexible assembly and easy replacement of backlight modules, reduces losses, extends service life, avoids overheating damage, and simplifies the assembly process.
Smart Images
Figure CN224067112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED backlight technology, and in particular to a combined LED backlight. Background Technology
[0002] LED backlighting is a liquid crystal display (LCD) backlighting technology that uses light-emitting diodes (LEDs) as the light source. Its core function is to provide uniform and high-brightness illumination for the LCD panel to achieve image display.
[0003] The LED backlight emits light through an LED array. After passing through multiple layers of optical components such as a light guide plate, diffuser, and prism film, the light is adjusted to form a uniform surface light source. The bottom of the light guide plate uses a screen-printed reflective dot design, and the uniformity of light distribution is controlled by varying the dot density.
[0004] Although the LED backlight in the above technology can form a uniform surface light source through the whole LED backlight, when the light-emitting diodes in some parts are damaged, the whole LED backlight is easily scrapped and difficult to replace and repair, thus affecting the efficiency of use and making it inconvenient to use. Therefore, a combined LED backlight is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a combined LED backlight, which aims to solve the problem in the prior art that when a local light-emitting diode is damaged, the entire LED backlight is easily scrapped and difficult to replace and repair, thus affecting the efficiency of use.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined LED backlight, comprising a backlight module, wherein conductive contacts are fixedly connected to the outer surface of the backlight module, a splicing strip is fixedly connected to the side of the outer surface of the backlight module near the conductive contacts, a conductive socket is provided on the outer surface of the backlight module, a splicing slot is provided on the side of the outer surface of the backlight module near the conductive socket, an LED lamp bead board is fixedly snapped onto the upper surface of the backlight module, and an assembly component is provided on the outer periphery of the backlight module;
[0007] The assembly component includes a first corner bracket, a second corner bracket, a third corner bracket, and a fourth corner bracket. The first, second, third, and fourth corner brackets are movably engaged at the four corners of the backlight module. Locking holes are fixedly connected to the outer surfaces of the first, second, third, and fourth corner brackets. A first assembly is provided between the first and second corner brackets, and a second assembly is provided between the third and fourth corner brackets. Double-hole locking plates are fixedly connected to the outer surfaces of the first and second assemblies. First splicing frames are provided on both sides of the first assembly, and second splicing frames are provided on both sides of the second assembly. Telescopic locking pins are fixedly connected to the outer surfaces of the first and second splicing frames. A heat dissipation structure is provided between the outer surfaces of the first and second splicing frames and the interior of the backlight module.
[0008] As a further description of the above technical solution:
[0009] The lower surfaces of the first, second, third, and fourth corner brackets are all fixedly connected to fixed supports.
[0010] As a further description of the above technical solution:
[0011] The first corner bracket, the third corner bracket, and the inner side of the first splicing frame are all fixedly connected with assembly strips, and the outer wall of the assembly strips is attached to the inner wall of the splicing slot.
[0012] As a further description of the above technical solution:
[0013] The second corner seat, the fourth corner seat, and the inner side of the second splicing frame are all provided with splicing slots, and the inner wall of the splicing slots is fitted and connected to the outer wall of the splicing strip.
[0014] As a further description of the above technical solution:
[0015] The inner wall of the keyhole plate and the double-hole plate are adapted to the outer wall size of the telescopic pin extension end.
[0016] As a further description of the above technical solution:
[0017] The heat dissipation structure includes a heat dissipation cavity, a first heat dissipation channel, and a second heat dissipation channel. The heat dissipation cavity is disposed inside the backlight module. The first heat dissipation channel is located on the outer surface of the backlight module, and the second heat dissipation channel is located on the outer surface of the first splicing frame and the second splicing frame.
[0018] As a further description of the above technical solution:
[0019] The first heat dissipation channel and the heat dissipation cavity are connected in a continuous manner.
[0020] As a further description of the above technical solution:
[0021] The first heat dissipation channel and the second heat dissipation channel are distributed in multiples at equal intervals, and the multiple first heat dissipation channels and the multiple second heat dissipation channels are arranged in a one-to-one correspondence.
[0022] As a further description of the above technical solution:
[0023] The backlight module is provided in multiple ways according to actual combination requirements.
[0024] As a further description of the above technical solution:
[0025] The outer wall of the conductive contact is adapted to the inner wall size of the conductive socket.
[0026] This utility model has the following beneficial effects:
[0027] 1. In this utility model, the backlight module and assembly components are used to achieve free horizontal or vertical expansion through their standardized interfaces. The backlight modules are finally fixed by using keyhole plates, double-hole plates and telescopic pins. The backlight modules are interconnected through conductive contacts and conductive sockets. After splicing, a complete circuit is automatically formed. There is no need for traditional cable welding, which simplifies the assembly process, supports flexible combination assembly, is suitable for backlight areas of different sizes, and makes it easy to replace damaged parts of the modules, thereby reducing losses.
[0028] 2. In this utility model, a heat dissipation structure is used to set a first heat dissipation channel that penetrates the internal heat dissipation cavity around each backlight module. After splicing, it forms a directional airflow network with the second heat dissipation channel on the outer surface of the first splicing frame and the second splicing frame. By connecting to an external air source, an independent air duct system is formed to achieve rapid heat dissipation, avoid overheating and damage to the backlight, and extend its service life. Attached Figure Description
[0029] Figure 1 This is a three-dimensional schematic diagram of a combined LED backlight proposed in this utility model;
[0030] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a combined LED backlight proposed in this utility model.
[0031] Figure 3 This is a schematic diagram of the disassembled structure of a combined LED backlight assembly component proposed in this utility model.
[0032] Figure 4 This is a schematic diagram of the backlight module of a combined LED backlight proposed in this utility model.
[0033] Figure 5 This is a schematic diagram of the combined structure of multiple backlight modules and assembly components of a combined LED backlight proposed in this utility model.
[0034] Legend:
[0035] 1. Backlight module; 2. Conductive contact; 3. Conductive socket; 4. Splicing slot; 5. Splicing strip; 6. LED bead board; 7. Assembly assembly; 71. First corner bracket; 72. Second corner bracket; 73. Third corner bracket; 74. Fourth corner bracket; 75. Fixing bracket; 76. Locking hole plate; 77. First assembly; 78. Second assembly; 79. Double-hole card plate; 710. First splicing frame; 711. Second splicing frame; 712. Telescopic pin; 713. Assembly strip; 714. Assembly slot; 8. Heat dissipation structure; 81. Heat dissipation cavity; 82. First heat dissipation channel; 83. Second heat dissipation channel. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] Reference Figures 3-5This utility model provides an embodiment of a combined LED backlight, including a backlight module 1. Multiple backlight modules 1 are provided according to actual combination requirements. Conductive contacts 2 are fixedly connected to the outer surface of each backlight module 1. A splicing strip 5 is fixedly connected to the side of the outer surface of the backlight module 1 near the conductive contacts 2. A conductive socket 3 is provided on the outer surface of the backlight module 1. The outer wall of the conductive contacts 2 and the inner wall of the conductive socket 3 are adapted to each other. The backlight modules 1 are interconnected using conductive contacts 2 and conductive sockets 3, automatically forming a complete circuit after splicing, eliminating traditional cable soldering and reducing assembly complexity. A splicing slot 4 is provided on the side of the outer surface of the backlight module 1 near the conductive socket 3. The upper surface of the backlight module 1... An LED light bead board 6 is fixedly attached. An assembly component 7 is provided around the outer periphery of the backlight module 1. The assembly component 7 includes a first corner bracket 71, a second corner bracket 72, a third corner bracket 73, and a fourth corner bracket 74. The first corner bracket 71, second corner bracket 72, third corner bracket 73, and fourth corner bracket 74 are respectively movably attached to the four corners of the outer periphery of the backlight module 1. A fixing bracket 75 is fixedly connected to the lower surface of each of the first corner bracket 71, second corner bracket 72, third corner bracket 73, and fourth corner bracket 74. A locking hole plate 76 is fixedly connected to the outer surface of each of the first corner bracket 71, second corner bracket 72, third corner bracket 73, and fourth corner bracket 74. A first assembly component 77 is provided between the first corner bracket 71 and second corner bracket 72, and between the third corner bracket 73 and fourth corner bracket 74... The system includes a second assembly 78. A double-hole clamping plate 79 is fixedly connected to the outer surfaces of the first assembly 77 and the second assembly 78. First splicing frames 710 are provided on both sides of the first assembly 77, and second splicing frames 711 are provided on both sides of the second assembly 78. Assembling strips 713 are fixedly connected to the inner sides of the first corner bracket 71, the third corner bracket 73, and the first splicing frame 710. The outer wall of the assembling strip 713 is fitted to the inner wall of the splicing slot 4. Assembling slots 714 are provided on the inner sides of the second corner bracket 72, the fourth corner bracket 74, and the second splicing frame 711. The inner wall of the assembling slot 714 is fitted to the outer wall of the splicing strip 5. Telescopic locking pins 712 are fixedly connected to the outer surfaces of the first splicing frame 710 and the second splicing frame 711. The inner walls of the keyhole plate 76 and the double-hole locking plate 79 are adapted to the outer wall dimensions of the telescopic end of the telescopic locking pin 712. Through the backlight module 1 and the assembly component 7, the backlight module 1 has splicing slots 4 and splicing strips 5, which are combined with the assembly component 7 has splicing strips 713 and splicing slots 714 to achieve free horizontal / vertical expansion. The keyhole plate 76, the double-hole locking plate 79 and the telescopic locking pin 712 are locked together to complete the final fixation. At the same time, the backlight modules 1 are interconnected by conductive contacts 2 and conductive sockets 3. After splicing, a complete circuit is automatically formed, eliminating the need for traditional cable welding, reducing assembly complexity, and supporting flexible combination assembly with free horizontal / vertical expansion to adapt to the use of backlight areas of different sizes.
[0038] Reference Figure 1 and Figure 2 A heat dissipation structure 8 is provided between the outer surfaces of the first splicing frame 710 and the second splicing frame 711 and the interior of the backlight module 1. The heat dissipation structure 8 includes a heat dissipation cavity 81, a first heat dissipation channel 82, and a second heat dissipation channel 83. The heat dissipation cavity 81 is located inside the backlight module 1. The first heat dissipation channel 82 is located on the outer surface of the backlight module 1 and is connected to the interior of the heat dissipation cavity 81. The second heat dissipation channel 83 is located on the outer surfaces of the first splicing frame 710 and the second splicing frame 711. Multiple first heat dissipation channels 82 and second heat dissipation channels 83 are evenly spaced and are arranged one-to-one. Through the heat dissipation structure 8, the first heat dissipation channel 82 that runs through the heat dissipation cavity 81 of each backlight module 1 is set on its outer periphery. After splicing, it forms a directional airflow network with the second heat dissipation channel 83 on the outer surfaces of the first splicing frame 710 and the second splicing frame 711. By connecting to an external air source, it forms an independent air duct integration that can quickly dissipate heat, avoid overheating damage to the backlight, and extend its service life.
[0039] Working principle: In use, the backlight module 1 is connected via its outer splicing slots 4 and splicing strips 5, combined with the standardized interfaces of the first corner bracket 71, second corner bracket 72, third corner bracket 73, fourth corner bracket 74, and the first assembly 77 and second assembly 78, to achieve free horizontal or vertical expansion and splicing. The backlight modules 1 are interconnected through conductive contacts 2 and conductive sockets 3, automatically forming a complete circuit after splicing, eliminating the need for traditional cable soldering, simplifying the assembly process. The locking plates 76 on the outer surfaces of the first corner bracket 71, second corner bracket 72, third corner bracket 73, and fourth corner bracket 74, in conjunction with the first assembly 77, allow for seamless connection. The double-hole retaining plate 79 on the outer surface of the second assembly 78 locks with the telescopic retaining pins 712 on the first splicing frame 710 and the second splicing frame 711, completing the final fixation. Each backlight module 1 is provided with a first heat dissipation channel 82 that penetrates the internal heat dissipation cavity 81. After splicing, it forms a directional airflow network with the second heat dissipation channel 83 on the outer surface of the first splicing frame 710 and the second splicing frame 711, connecting to the external air source to form an independent air duct system, realizing rapid heat dissipation, preventing the backlight from overheating and being damaged, extending its service life, and supporting flexible combination assembly that can be freely expanded horizontally and vertically, suitable for backlight area requirements of different sizes.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A combined LED backlight comprising a backlight module (1), characterized in that: The outer surface of the backlight module (1) is fixedly connected with a conductive contact (2), one side of the outer surface of the backlight module (1) close to the conductive contact (2) is fixedly connected with a splicing card strip (5), the outer surface of the backlight module (1) is provided with a conductive socket (3), one side of the outer surface of the backlight module (1) close to the conductive socket (3) is provided with a splicing card slot (4), the upper surface of the backlight module (1) is fixedly connected with an LED lamp bead plate (6), and the outer periphery of the backlight module (1) is provided with a splicing assembly (7). The splicing assembly (7) comprises a first corner seat (71), a second corner seat (72), a third corner seat (73) and a fourth corner seat (74), the first corner seat (71), the second corner seat (72), the third corner seat (73) and the fourth corner seat (74) are movably connected to four corners of the outer periphery of the backlight module (1) respectively, the outer surfaces of the first corner seat (71), the second corner seat (72), the third corner seat (73) and the fourth corner seat (74) are fixedly connected with lock hole plates (76), first combination members (77) are arranged between the first corner seat (71) and the second corner seat (72), second combination members (78) are arranged between the third corner seat (73) and the fourth corner seat (74), the outer surfaces of the first combination members (77) and the second combination members (78) are fixedly connected with double-hole clamping plates (79), first splicing frames (710) are arranged on the two sides of the first combination members (77), second splicing frames (711) are arranged on the two sides of the second combination members (78), the outer surfaces of the first splicing frames (710) and the second splicing frames (711) are fixedly connected with telescopic clamping pins (712), and heat dissipation structures (8) are arranged between the outer surfaces of the first splicing frames (710) and the second splicing frames (711) and the inner part of the backlight module (1).
2. The combined LED backlight according to claim 1, wherein: The lower surfaces of the first corner seat (71), the second corner seat (72), the third corner seat (73) and the fourth corner seat (74) are fixedly connected with fixed supports (75).
3. The combined LED backlight according to claim 1, wherein: The inner sides of the first corner seat (71), the third corner seat (73) and the first splicing frame (710) are fixedly connected with splicing card strips (713), and the outer walls of the splicing card strips (713) are connected to the inner walls of the splicing card slots (4).
4. The combined LED backlight of claim 1, wherein: The inner sides of the second corner seat (72), the fourth corner seat (74) and the second splicing frame (711) are provided with splicing card slots (714), and the inner walls of the splicing card slots (714) are connected to the outer walls of the splicing card strips (5).
5. The combined LED backlight of claim 1, wherein: The inner walls of the lock hole plates (76) and the double-hole clamping plates (79) are matched in size with the outer walls of the telescopic ends of the telescopic clamping pins (712).
6. The combined LED backlight of claim 1, wherein: The heat dissipation structure (8) comprises a heat dissipation cavity (81), a first heat dissipation channel (82) and a second heat dissipation channel (83), the heat dissipation cavity (81) is arranged in the inner part of the backlight module (1), the first heat dissipation channel (82) is arranged on the outer surface of the backlight module (1), and the second heat dissipation channel (83) is arranged on the outer surfaces of the first splicing frame (710) and the second splicing frame (711).
7. The combined LED backlight according to claim 6, wherein: The first heat dissipation channels (82) are connected through between the inside of the heat dissipation cavities (81).
8. The combined LED backlight of claim 6, wherein: The first heat dissipation channels (82) and the second heat dissipation channels (83) are distributed with multiple equal intervals, and the first heat dissipation channels (82) and the second heat dissipation channels (83) are set in one-to-one correspondence.
9. The combined LED backlight of claim 1, wherein: The backlight module (1) is provided with multiple according to actual combination requirements.
10. The combined LED backlight of claim 1, wherein: The outer wall of the conductive contact (2) is matched in size with the inner wall of the conductive socket (3).