CN222167368U

CN222167368U - Difficult deformable backlight module Cover structure

Info

Publication number: CN222167368U
Application number: CN202420343723.0U
Authority: CN
Inventors: 赵俊廷
Original assignee: Weihai Taiji Huixian Photoelectric Co ltd
Current assignee: Weihai Taiji Huixian Photoelectric Co ltd
Priority date: 2024-02-26
Filing date: 2024-02-26
Publication date: 2024-12-13
Anticipated expiration: 2034-02-26

Abstract

The utility model provides a non-deformable backlight module Cover structure, which solves the technical problems that the lower edge of a Cover is not contacted with a metal backboard during locking and attaching due to the limitation of the U-shaped Cover structure of the traditional planar liquid crystal module, so that the Cover is deformed and tilted up after locking and attaching, and a front Cover of a complete machine installed at a later stage is jacked up, thereby indirectly influencing the joint size of a liquid crystal panel and the front Cover of the complete machine, and can be widely applied to the field of liquid crystal display modules; the novel metal back plate comprises a metal back plate, a liquid crystal panel is arranged in the metal back plate, a PCBA plate is arranged on the back surface of the bottom of the metal back plate, an adaptive middle frame is arranged on the frame of the metal back plate, a second mounting hole is formed in the lower frame of the metal back plate and used for secondarily fastening the Cover plate, a second mounting hole is formed in the Cover plate and corresponds to the second mounting hole, and an inward folding portion is arranged at the position of the Cover plate, located in the second mounting hole and used for bearing pressure when screws are screwed.

Description

Difficult deformable backlight module Cover structure

Technical Field

The utility model belongs to the technical field of liquid crystal display modules, and particularly relates to a backlight module Cover structure which is not easy to deform.

Background

In the conventional planar liquid crystal module, the light incident side is protected by an independent metal piece, and the metal piece Cover protects the COF and simultaneously covers the PCBA on the back side. When using a Cover plate in the shape of a U, significant disadvantages occur. The Cover is assembled with the back plate rubber frame through screw locking, and because of the limitation of the Cover structure, the lower edge of the Cover is not contacted with the metal back plate during locking, so that the Cover is deformed and tilted upwards after locking, and the front Cover of the whole machine installed at a later stage can be jacked up, thereby indirectly influencing the joint size of the liquid crystal panel and the front Cover of the whole machine.

Disclosure of utility model

The utility model aims to solve the defects of the technology and provide a backlight module Cover structure which is not easy to deform.

The utility model provides a non-deformable backlight module Cover structure, which comprises a metal backboard, wherein a liquid crystal panel is arranged in the metal backboard, a PCBA board is arranged on the back surface of the bottom of the metal backboard, an adaptive middle frame is arranged on a frame of the metal backboard, a second mounting hole is arranged on a lower frame of the metal backboard and used for secondarily fastening the Cover board, a second mounting hole is arranged on the Cover board at a position corresponding to the second mounting hole, and an inner folding part is arranged at the position of the Cover board at the second mounting hole and used for bearing pressure when screws are screwed.

Further, a plurality of U-shaped COF plates are arranged at the bottom of the metal backboard, the lower frame of the middle frame and the lower frame of the PCBA plate are both positioned in the U-shaped space of the COF plate, the COF plate is used for driving the liquid crystal panel, a U-shaped Cover plate is further arranged at the bottom of the metal backboard, and the U-shaped space of the Cover plate wraps the lower frame of the metal backboard and the structures on the lower frame to protect the COF plate.

Further, first mounting holes are formed in two bottom corners of the lower frame of the metal backboard, the first mounting holes are threaded holes protruding towards one side of the Cover board, and first mounting holes and second mounting holes protruding towards one side of the middle frame are formed in positions, corresponding to the first mounting holes and the second mounting holes, of the Cover board respectively.

Further, a plurality of backboard convex blocks are arranged on the four frames of the metal backboard, a first clamping groove matched with the backboard convex blocks is formed on the lower frame of the middle frame, and second clamping grooves matched with the backboard convex blocks are formed in the left frame, the right frame and the upper frame of the middle frame.

Furthermore, two bottom corners of the lower frame of the middle frame are also provided with barb grooves for installing decorative strips, guide blocks are arranged in the barb grooves, and inclined surfaces are arranged on the guide blocks.

Further, an LED lamp strip clamping groove is further formed in the left bottom corner of the back surface of the metal back plate and used for being connected with an LED lamp strip connector.

The utility model provides a non-deformable backlight module Cover structure, which has the following beneficial effects:

Through setting up the infolding portion, can bear the Cover board when screwing on the metal backplate, the screw is to the screwing pressure of Cover board, promotes Cover plate structure intensity, prevents that the Cover board from receiving the compressive deformation, guarantees the planarization of Cover board, makes follow-up when assembling complete machine protecgulum, and liquid crystal panel is more even with the seam of complete machine protecgulum.

The protection function of a plurality of sheet metal parts and plastic parts is realized only through one Cover plate, and the cooperation of a plurality of sheet metal parts is not needed. The method reduces the complexity of operation, the number of screws and the number of sheet metal parts, improves the compatibility of the Cover plate, is universal for a plurality of types of liquid crystal glass, and has simple and convenient model deriving mode.

Drawings

FIG. 1 is a front elevational view of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a rear block diagram of the present utility model;

Fig. 4 is an enlarged view at B in fig. 3;

Fig. 5 is a schematic view showing the positional relationship of the first mounting hole and the first fitting hole of the present utility model;

Fig. 6 is a schematic view of the positional relationship of the second mounting hole and the second fitting hole of the present utility model;

FIG. 7 is a block diagram of a second mounting hole portion of the Cover plate of the present utility model;

FIG. 8 is a block diagram of the lower rim of the metal back plate of the present utility model;

FIG. 9 is a block diagram of the side of the center of the present utility model;

The LED lamp strip clamping groove comprises a liquid crystal panel 1, a metal back plate 2, a middle frame 3, a Cover plate 4, a PCBA plate 5, a COF plate 6, a back plate protruding block 7, a first clamping groove 8, a second clamping groove 9, a first mounting hole 10, a second mounting hole 11, a 12, an inward folded part 13, a barb groove 14, a first mounting hole 15, a second mounting hole 16, a guide block 17 and an LED lamp strip clamping groove.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples to aid in understanding the context of the utility model. The method used in the utility model is a conventional method unless specified otherwise, and the raw materials and devices used are conventional commercial products unless specified otherwise.

As shown in fig. 1-4, the utility model provides a non-deformable backlight module Cover structure, which comprises a metal backboard 2, wherein a liquid crystal panel 1 is arranged in the metal backboard 2, a PCBA board 5 is arranged on the back surface of the bottom of the metal backboard 2, a middle frame 3 which is matched with the metal backboard 2 is arranged on the frame, a plurality of U-shaped COF boards 6 are arranged at the bottom of the metal backboard 2, the lower frame of the middle frame 3 and the lower frame of the PCBA board 5 are both positioned in the U-shaped space of the COF boards 6, and the COF boards 6 are used for driving the liquid crystal panel 1. The bottom of the metal backboard 2 is also provided with a U-shaped Cover board 4, and the U-shaped space of the Cover board 4 wraps the lower frame of the metal backboard 2 and the structures on the lower frame, so as to protect the COF board 6.

As shown in fig. 5 to 7, the two bottom corners of the lower frame of the metal back plate 2 are provided with first mounting holes 10, and the first mounting holes 10 are threaded holes protruding toward one side of the Cover plate 4. The lower frame of the metal backboard 2 is also provided with a second mounting hole 11 for secondarily fastening the Cover board 4. The Cover plate 4 is provided with a first fitting hole 14 and a second fitting hole 15 protruding toward the middle frame 3 side at positions corresponding to the first fitting hole 10 and the second fitting hole 11, respectively, so that the head of the screw can be left in the protrusion when the Cover plate 4 and the metal back plate 2 are mounted by using the screw, and the surface of the Cover plate 4 is smooth. The Cover plate 4 is provided with the infolding part 12 at the position of the second assembly hole 15, and by arranging the infolding part 12, when the screw is screwed in the second assembly hole 11, the infolding part 12 can bear the screwing pressure of the screw, so that the Cover plate 4 is prevented from being deformed under pressure.

As shown in fig. 8 and 9, a plurality of backboard convex blocks 7 are arranged on four frames of the metal backboard 2, a first clamping groove 8 matched with the backboard convex blocks 7 is arranged on a lower frame of the middle frame 3, and second clamping grooves 9 matched with the backboard convex blocks 7 are arranged inside a left frame, a right frame and an upper frame of the middle frame 3. When in use, the middle frame 3 is clamped on the metal backboard 2.

As shown in figures 5 and 7, two bottom corners of the lower frame of the middle frame 3 are also provided with barb grooves 13 for mounting decorative strips, guide blocks 16 are arranged in the barb grooves 13, and inclined surfaces are arranged on the guide blocks 16. The guide block 16 can provide guidance when the decorative strip is mounted on the middle frame 3, so that the decorative strip can be clamped on the middle frame 3 more conveniently. As shown in fig. 4, the left bottom corner of the back of the metal back plate 2 is further provided with an LED light bar clamping groove 17 for connecting with an LED light bar connector.

In the description of the present utility model, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must be provided with specific orientations, be configured and operated in specific orientations, and thus are not to be construed as limiting the present utility model.

However, the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the utility model are intended to fall within the scope of the claims.

Claims

1. A backlight module Cover structure that is not easily deformed, comprising a metal back plate, a liquid crystal panel is arranged in the metal back plate, a PCBA board is arranged on the bottom back of the metal back plate, and a matching middle frame is arranged on the metal back plate frame, characterized in that a second mounting hole is arranged on the lower frame of the metal back plate for secondary fastening of the Cover plate; a second assembly hole is arranged at a position corresponding to the second mounting hole on the Cover plate, and an inner folding portion is arranged on the Cover plate at the position of the second assembly hole for bearing the pressure when the screw is tightened.

2. According to claim 1, a backlight module Cover structure that is not easily deformed is characterized in that a plurality of U-shaped COF boards are arranged at the bottom of the metal back plate, the lower frame of the middle frame and the lower frame of the PCBA board are both located inside the U-shaped space of the COF board, and the COF board is used to drive the liquid crystal panel; a U-shaped Cover board is also arranged at the bottom of the metal back plate, and the U-shaped space of the Cover board completely wraps the lower frame of the metal back plate and the structure on the lower frame to protect the COF board.

3. A backlight module Cover structure that is not easily deformed according to claim 1 or 2, characterized in that two bottom corners of the lower frame of the metal back plate are each provided with a first mounting hole, and the first mounting hole is a threaded hole protruding toward one side of the Cover plate; and a first assembly hole and a second assembly hole protruding toward one side of the middle frame are respectively provided at positions on the Cover plate corresponding to the first mounting hole and the second mounting hole.

4. According to claim 3, a backlight module cover structure that is not easy to deform is characterized in that a plurality of back panel protrusions are provided on the four frames of the metal back panel, a first card slot that cooperates with the back panel protrusions is opened on the lower frame of the middle frame; and a second card slot that cooperates with the back panel protrusions is provided inside the left and right frames and the upper frame of the middle frame.

5. According to the backlight module cover structure that is not easily deformed as described in claim 4, it is characterized in that the two bottom corners of the lower frame of the middle frame are also provided with hook grooves for installing decorative strips; a guide block is provided in the hook groove, and an inclined surface is provided on the guide block.

6. The non-deformable backlight module cover structure according to claim 5, characterized in that an LED light bar slot is further provided on the left bottom corner of the back side of the metal back plate for connecting an LED light bar connector.