Backlight module structure of liquid crystal display screen
By introducing structures such as positioning plates, positioning posts, fixing clips, and heat-conducting posts into the LCD backlight module, the problem of long disassembly and maintenance time in the existing technology has been solved, achieving rapid disassembly and assembly and improved heat dissipation.
Patent Information
- Application Number
- CN202520056355.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing backlight module structure of LCD screens requires a considerable amount of time to disassemble and maintain when damaged.
The mounting plate is supported by positioning plates and positioning columns. The LED modules are fixed by fixing buckles and blocks. Anti-movement grooves and anti-movement plates are used for anti-movement fixing. The mounting plate is fixed in the display frame by positioning bolts. Heat dissipation is carried out by heat conduction columns and heat conduction plates.
It enables quick assembly and disassembly of the LCD backlight module and improves heat dissipation, simplifying the maintenance process and increasing maintenance efficiency.
Smart Images
Figure CN223650865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal display technology, and more specifically, to a backlight module structure for a liquid crystal display. Background Technology
[0002] Liquid Crystal Display (LCD) is a type of flat panel display used in televisions and computers. The backlight module is a crucial component of an LCD screen, primarily consisting of a light source, reflector, light guide plate, diffuser, and prism. However, existing backlight module structures require disassembly and maintenance starting from the screen itself, involving multiple steps and consuming considerable time. Therefore, this paper proposes a new backlight module structure to address these issues. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a backlight module structure for a liquid crystal display screen, which has the advantages of easy and quick disassembly and maintenance.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a backlight module structure for a liquid crystal display screen includes a display screen frame, a positioning plate fixedly connected to the inner wall of the display screen frame, a positioning post fixedly connected to the top of the positioning plate, a mounting plate placed on the top of the positioning plate, an LED module placed at the bottom of the mounting plate, an mounting slot provided in the inner cavity of the mounting plate, a fixing buckle inserted into the inner cavity of the mounting slot, two locking blocks fixedly connected to the rear sides of the mounting plate, a slot provided in the inner cavity of the locking block, a backlight plate engaged in the slot, a heat dissipation hole provided in the inner cavity of the mounting plate, a heat-conducting column inserted into the inner cavity of the heat dissipation hole, a heat-conducting plate fixedly connected to the bottom of the heat-conducting column, a cover plate placed on the top of the display screen frame, fixing holes provided at the four corners of the display screen frame and the cover plate, fixing bolts threadedly connected to the inner cavity of the fixing holes, and heat dissipation fins fixedly connected to the top of the cover plate.
[0007] As a preferred embodiment, both the positioning plate and the mounting plate have anti-movement grooves in their inner cavities, and anti-movement plates are inserted into the inner cavities of the anti-movement grooves. Both the mounting plate and the anti-movement plates have positioning holes that are compatible with the positioning posts in their inner cavities.
[0008] As a preferred embodiment, the inner cavity of the positioning post is threaded with positioning bolts, and the number of the positioning plate, positioning post and positioning bolts are all four.
[0009] As a preferred embodiment, both the lamp bead module and the mounting plate have anti-movement through holes in their inner cavities, and the top of the fixing buckle is fixedly connected with an anti-movement rod that matches the anti-movement through hole.
[0010] As a preferred embodiment, positioning blocks are fixedly connected to the front and rear sides of the bottom of the mounting plate, and there are four positioning blocks, with one side of the positioning block in contact with the backlight plate.
[0011] As a preferred embodiment, the inner cavity of the cover plate is provided with a contact groove adapted to the heat-conducting column, and the top of the heat-conducting column contacts the bottom of the heat dissipation fins.
[0012] As a preferred embodiment, the surface of the cover plate is provided with heat dissipation grooves, and the inner cavity of the heat dissipation grooves is provided with a dustproof mesh.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides a backlight module structure for a liquid crystal display screen, which has the following beneficial effects.
[0015] 1. The mounting plate and positioning posts are used to support and position the mounting plate. The LED module is placed in the inner cavity of the mounting plate and fixed with the fixing buckle. Then the backlight panel is snapped into the inner cavity of the clip. At this time, the LED module and the backlight panel are installed. The mounting plate is fixed to prevent movement by the anti-movement groove and anti-movement plate. The mounting plate is fixed in the display frame by the positioning bolts. The front and rear sides of the backlight panel are limited by the positioning blocks.
[0016] 2. The heat-conducting pillars and plates can conduct heat to the heat dissipation fins, allowing the heat inside the display screen to be dissipated outwards. The heat dissipation channels further enhance the heat dissipation effect. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a top view of the display screen frame of this utility model;
[0019] Figure 3 This is a bottom view of the card block of this utility model;
[0020] Figure 4 This is a top view of the card block and backlight panel of this utility model.
[0021] In the diagram: 1. Display screen frame; 2. Positioning plate; 3. Positioning post; 4. Mounting plate; 5. LED module; 6. Fixing buckle; 7. Clip; 8. Backlight panel; 9. Heat-conducting post; 10. Heat-conducting plate; 11. Cover plate; 12. Fixing through hole; 13. Fixing bolt; 14. Heat dissipation fins; 15. Anti-movement slot; 16. Anti-movement plate; 17. Positioning bolt; 18. Anti-movement rod; 19. Positioning block; 20. Heat dissipation slot. Detailed Implementation
[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0023] Example 1:
[0024] Please see Figure 1-4To facilitate assembly and disassembly, this embodiment provides the following technical solution, specifically: It includes a display screen frame 1, a positioning plate 2 fixedly connected to the inner wall of the display screen frame 1, a positioning post 3 fixedly connected to the top of the positioning plate 2, an mounting plate 4 placed on the top of the positioning plate 2, and a lamp bead module 5 placed at the bottom of the mounting plate 4. The inner cavity of the mounting plate 4 has an installation slot, into which a fixing buckle 6 is inserted. Both sides of the rear side of the mounting plate 4 are fixedly connected to locking blocks 7, each with a locking groove. A backlight plate 8 is engaged within the locking groove. Both the positioning plate 2 and the mounting plate 4 have anti-movement slots 15, into which an anti-movement plate 16 is inserted. Both the mounting plate 4 and the anti-movement plate 16 have positioning holes adapted to the positioning post 3. A positioning bolt 17 is threadedly connected to the inner cavity of the positioning post 3. The number of positioning plates 2, positioning posts 3, and positioning bolts 17 are four. The lamp bead module... Both the inner cavity of group 5 and mounting plate 4 are provided with anti-movement through holes. The top of the fixing buckle 6 is fixedly connected with an anti-movement rod 18 that matches the anti-movement through hole. The front and rear sides of the bottom of the mounting plate 4 are fixedly connected with positioning blocks 19. There are four positioning blocks 19, and one side of the positioning block 19 is in contact with the backlight plate 8. The positioning plate 2 and positioning post 3 can support and position the mounting plate 4. The lamp bead module 5 can be placed in the inner cavity of the mounting plate 4 and fixed with the fixing buckle 6. Then the backlight plate 8 is snapped into the inner cavity of the clip 7. At this time, the lamp bead module 5 and the backlight plate 8 are installed. The anti-movement through groove 15 and anti-movement plate 16 can fix the mounting plate 4 to prevent movement. The positioning bolt 17 can fix the mounting plate 4 in the display frame 1. The positioning block 19 can limit the front and rear sides of the backlight plate 8.
[0025] Example 2:
[0026] Please see Figure 1-4 To improve heat dissipation, this embodiment provides the following technical solution: A heat dissipation through-hole is provided in the inner cavity of the mounting plate 4. A heat-conducting column 9 is inserted into the inner cavity of the heat dissipation through-hole. A heat-conducting plate 10 is fixedly connected to the bottom of the heat-conducting column 9. A cover plate 11 is placed on the top of the display frame 1. Fixing through-holes 12 are provided at the four corners of the display frame 1 and the cover plate 11. Fixing bolts 13 are threaded into the inner cavity of the fixing through-holes 12. Heat dissipation fins 14 are fixedly connected to the top of the cover plate 11. A contact groove adapted to the heat-conducting column 9 is provided in the inner cavity of the cover plate 11. The top of the heat-conducting column 9 contacts the bottom of the heat dissipation fins 14. A heat dissipation groove 20 is provided on the surface of the cover plate 11. A dustproof mesh is provided in the inner cavity of the heat dissipation groove 20. Through the heat-conducting column 9 and the heat-conducting plate 10, heat can be conducted to the heat dissipation fins 14, allowing the heat inside the display screen to be dissipated outwards. The heat dissipation groove 20 further improves the heat dissipation effect.
[0027] The working principle of this utility model is as follows: Place the mounting plate 4 flat on the table, arrange the LED bead modules 5 in sequence in the inner cavity of the mounting plate 4, and snap the fixing buckle 6 into the mounting through groove. The fixing buckle 6 and the anti-movement rod 18 cooperate to fix the LED bead modules 5. Snap the backlight plate 8 into the slot of the clip block 7. Pick up the mounting plate 4 and place it from top to bottom into the inner cavity of the display screen frame 1, so that the positioning post 3 passes through the positioning through hole of the mounting plate 4. Pass the anti-movement plate 16 through the anti-movement through groove 15, and then screw the positioning bolt 17 into the inner cavity of the positioning post 3. At this time, the mounting plate 4 is fixed. Then, cover the display screen frame 1 with the cover plate 11 and screw the fixing bolt 13 into the fixing through hole 12. At this time, the backlight module structure is installed.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A backlight module structure for a liquid crystal display screen, comprising a display screen frame (1), characterized in that: A positioning plate (2) is fixedly connected to the inner wall of the display frame (1). A positioning post (3) is fixedly connected to the top of the positioning plate (2). An mounting plate (4) is placed on the top of the positioning plate (2). A lamp bead module (5) is placed at the bottom of the mounting plate (4). An installation slot is opened in the inner cavity of the mounting plate (4). A fixing buckle (6) is inserted into the inner cavity of the installation slot. A locking block (7) is fixedly connected to both sides of the rear side of the mounting plate (4). A locking groove is opened in the inner cavity of the locking block (7). The inner cavity of the locking groove locks the locking block. A backlight plate (8) is attached. The inner cavity of the mounting plate (4) is provided with a heat dissipation through hole. A heat-conducting column (9) is inserted into the inner cavity of the heat dissipation through hole. A heat-conducting plate (10) is fixedly connected to the bottom of the heat-conducting column (9). A cover plate (11) is placed on the top of the display frame (1). Fixing through holes (12) are provided at the four corners of the display frame (1) and the cover plate (11). Fixing bolts (13) are threaded into the inner cavity of the fixing through holes (12). Heat dissipation fins (14) are fixedly connected to the top of the cover plate (11).
2. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The inner cavities of the positioning plate (2) and the mounting plate (4) are provided with anti-movement grooves (15), and anti-movement plates (16) are inserted into the inner cavities of the anti-movement grooves (15). The inner cavities of the mounting plate (4) and the anti-movement plates (16) are provided with positioning through holes that are compatible with the positioning posts (3).
3. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The inner cavity of the positioning post (3) is threaded with a positioning bolt (17), and the number of the positioning plate (2), the positioning post (3) and the positioning bolt (17) are all four.
4. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The inner cavities of the lamp bead module (5) and the mounting plate (4) are both provided with anti-movement through holes, and the top of the fixing buckle (6) is fixedly connected with an anti-movement rod (18) that is adapted to the anti-movement through hole.
5. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The mounting plate (4) has four positioning blocks (19) fixedly connected to the front and rear sides of its bottom, and one side of each positioning block (19) is in contact with the backlight plate (8).
6. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The inner cavity of the cover plate (11) is provided with a contact groove that is compatible with the heat-conducting column (9), and the top of the heat-conducting column (9) is in contact with the bottom of the heat dissipation fin (14).
7. The backlight module structure of a liquid crystal display screen according to claim 1, characterized in that: The surface of the cover plate (11) is provided with a heat dissipation groove (20), and the inner cavity of the heat dissipation groove (20) is provided with a dustproof mesh.