Back plate combined structure of liquid crystal module

Abstract

The utility model provides a back plate combination structure of a liquid crystal module, which solves the technical problems that the existing plastic frame and metal back plate are not firmly matched and are easy to misplace, and can be widely applied to the field of liquid crystal modules. The periphery of the back plate is provided with a turnup which is perpendicular to the back plate and is turned outwards towards the front side of the back plate; a middle frame is installed outside the turned-over edge, a boundary frame dividing the middle frame into the front side and the rear side is arranged on the inner side of the middle frame, matched installation assemblies are arranged on the middle frame and the back plate, and each installation assembly is composed of a son buckle arranged on the turned-over edge and a mother buckle located on the middle frame. A plurality of first clamping sub-buckles and inserting sub-buckles are fixed on the turned-over edge, each first clamping sub-buckle is composed of an outward convex block, the side, close to the rear side of the back plate, of each convex block is a plane, and the side, close to the front side of the back plate, of each convex block is a guide inclined plane; and the insertion sub-buckle is an outer convex frame formed by directly extending the turned-over edge outwards.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid crystal module technical field, especially relate to a backplate combination structure of liquid crystal module. BACKGROUND

[0002] The backlight is the optical assembly in the liquid crystal display (LCD), and can provide the light source for the liquid crystal display device. The main components of the backlight currently include the metal back cover, the light source, the light guide plate, the optical film and the plastic mold frame. The liquid crystal module further includes the backlight, the liquid crystal panel and the metal bezel.

[0003] The metal back cover, the plastic mold frame and the metal bezel in the liquid crystal module are respectively provided with the connecting structure such as the clamping hook, so that the metal back cover, the plastic mold frame and the metal bezel as the skeleton structure of the liquid crystal module are connected and fixed to support other components of the liquid crystal module, such as the light guide plate, the optical film, the light source and the liquid crystal panel.

[0004] The metal bezel and the metal back cover mainly support other components of the liquid crystal module, ensure the mechanical strength, and combine the components of the liquid crystal module through the connection and fixation to realize the function of the backlight and ensure the mechanical stability.

[0005] The existing plastic mold frame and the metal back cover may be not firmly matched and may be easily misaligned. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the technical defects, and provides a backplate combination structure of liquid crystal module.

[0007] Therefore, the utility model provides a backplate combination structure of liquid crystal module, which comprises a backplate, the periphery of the backplate is provided with a turn-up edge which is perpendicular to the backplate and is outwardly turned up to the front side of the backplate, a middle frame is mounted on the outside of the turn-up edge, a demarcation frame is arranged on the inner side of the middle frame and divides the middle frame into front and rear sides, a convex edge which is thickened is arranged on the demarcation frame and is used for increasing the structural strength of the connecting part of the demarcation frame and the middle frame.

[0008] Further, the middle frame and the backplate are provided with the matched mounting assembly, and the mounting assembly is composed of a sub-buckle arranged on the turn-up edge and a female buckle arranged on the middle frame.

[0009] Further, a plurality of first clamping sub-buckles and plug-in sub-buckles are fixed on the turn-up edge, the first clamping sub-buckle is composed of an outward convex block, one side of the convex block close to the backplate rear side is a plane, and the other side close to the backplate front side is a guide inclined surface, and the plug-in sub-buckle is an outward convex frame formed by directly extending outward from the turn-up edge.

[0010] Further, the convex edge is fixed with a plurality of first clasp female buckles, the first clasp female buckle is formed by a closed hollow frame, the inner side vertical surface of the hollow frame is coincident with the outer boundary of the convex edge, the shape of the hollow frame is matched with the convex block; the inner top wall of the hollow frame is a plane, when the convex block is clamped into the hollow frame, the plane of the convex block and the plane of the inner top wall of the hollow frame are matched to form the limit in the front-back direction of the back plate; a plurality of insertion female buckles are fixed on the rear side of the boundary frame, the insertion female buckle is a vertical plate.

[0011] Further, the convex edge is fixed with a plurality of first clasp female buckles, the first clasp female buckle is formed by a closed hollow frame, the inner side vertical surface of the hollow frame is coincident with the outer boundary of the convex edge, the shape of the hollow frame is matched with the convex block; the inner top wall of the hollow frame is a plane, when the convex block is clamped into the hollow frame, the plane of the convex block and the plane of the inner top wall of the hollow frame are matched to form the limit in the front-back direction of the back plate; a plurality of insertion female buckles are fixed on the rear side of the boundary frame, the insertion female buckle is a vertical plate.

[0012] The back plate combination structure of the liquid crystal module has the following beneficial effects:

[0013] By additionally arranging the thickened convex edge, the structural strength of the connection between the boundary frame and the middle frame can be improved, and the boundary frame is not easy to be damaged; the convex block is bent or convexly formed, the plane boundary shape of the convex block is similar to the transition treatment of the chamfer, and the perpendicular clamping and the generation of chippings are not easy to occur during combination or disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure diagram of the front side of the whole front side of the utility model;

[0015] Figure 2 It is the structure diagram of the front side right side edge of the back plate and the middle frame of the utility model;

[0016] Figure 3 It is the structure diagram of the rear side left side edge of the back plate and the middle frame of the utility model;

[0017] Figure 4 It is the structure diagram of the middle frame mounting assembly of the utility model;

[0018] Figure 5 It is the structure diagram of the front side bottom side edge of the back plate and the middle frame of the utility model;

[0019] Figure 6 It is the first kind of implementation mode of the mounting assembly of the back plate and the middle frame of the utility model;

[0020] Figure 7 It is the second kind of implementation mode of the mounting assembly of the back plate and the middle frame of the utility model;

[0021] Figure 8 It is the third kind of implementation mode of the mounting assembly of the back plate and the middle frame of the utility model;

[0022] Figure 9 It is the structure diagram of the utility model;

[0023] Marked: 1, back plate; 2, middle frame; 3, turn edge; 4, demarcation frame; 5, front cover plate; 6, convex edge; 7, first male buckle; 8, female buckle; 9, push rod; 10, limiting piece; 11, allowance groove; 12, first female buckle; 13, female buckle; 14, second male buckle; 15, second female buckle; 16, roller; 17, mounting hole; 18, convex block; 19, extension plate; 20, first clamping groove; 21, second clamping groove; 22, folding piece; 23, sliding groove; 24, tensioning rod. DETAILED DESCRIPTION

[0024] The utility model will be further explained in connection with the drawings and specific embodiments, to help understand the contents of the utility model. The method used in the utility model is conventional method if no special provision; the raw materials and devices used are conventional commercial products if no special provision.

[0025] As Figure 1 , 3, the utility model provides a back plate combination structure of liquid crystal module, including back plate 1, back plate 1 around is provided with the turn edge 3 that is perpendicular to back plate 1 and is outward to the front side of back plate 1. Turn edge 3 outside is installed with the middle frame 2 that is parallel to turn edge 3, and the demarcation frame 4 that is divided into front and rear two sides is set up in the inside of middle frame 2. Middle frame 2 and back plate 1 are provided with the installation assembly that is matched, and the installation assembly is composed of the female buckle that is located in the back side, the inside of middle frame 2 and the male buckle that is set up in the outside of turn edge 3. The convex edge 6 of thickening processing is set up in the back side of demarcation frame 4, for increasing the structural strength of the connecting portion of demarcation frame 4 and middle frame 2.

[0026] As Figure 2 , 3, 6, 7, in an embodiment, the left and right sides and top edge of turn edge 3 are fixed with a plurality of first male buckle 7 and female buckle 8. First male buckle 7 is composed of outward convex block 18, and the edge close to the back side of back plate 1 is plane, and the edge close to the front side of back plate 1 is guide inclined plane. Female buckle 8 is the outer convex frame formed by the direct outward extension of turn edge 3.

[0027] As Figure 3The first engaging female buckle 12 is formed by a closed hollow frame, the inner side of the hollow frame is coincided with the outer boundary of the convex edge 6, and the shape of the hollow frame is matched with the convex block 18. The inner top wall of the hollow frame is a plane, which can cooperate with the plane of the convex block 18 when the convex block 18 is engaged into the hollow frame, to form the limit in the front-rear direction of the back plate 1. A plurality of insertion female buckles 13 are fixed on the rear side of the boundary frame 4, and the insertion female buckle 13 is a vertical plate, which is not located on the convex edge 6. The convex edge 6 is also provided with a pre-allowance slot 11 at the position of the insertion female buckle 13, which can cooperate with the height of the insertion female buckle 13 and the insertion male buckle 8 to form the limit in the left-right direction of the back plate 1 after the insertion male buckle 8 is inserted into the insertion female buckle 13.

[0028] As shown in Figure 6 , in an embodiment, the longitudinal height of the convex block 18 of the first engaging male buckle 7 is greater than the height of the hollow frame of the first engaging female buckle 12, so that only part of the structure of the convex block 18 of the first engaging male buckle 7 enters the hollow frame of the first engaging female buckle 12 when engaged, and the plane edge cooperates with the hollow frame to limit. Figure 7 As shown in , in an embodiment, the longitudinal height of the convex block 18 of the first engaging male buckle 7 is less than the height of the hollow frame of the first engaging female buckle 12, so that the entire structure of the convex block 18 of the first engaging male buckle 7 enters the hollow frame of the first engaging female buckle 12 when engaged, and the plane edge cooperates with the hollow frame to limit.

[0029] Figure 5 As shown in , the bottom edge of the turned edge 3 is fixed with a plurality of second engaging male buckles 14, which are composed of an extension plate 19 protruding from the boundary of the turned edge 3 and a convex block 18 arranged on the extension plate 19 and having the same shape as the first engaging male buckle 7, and the guide inclined surface of the convex block 18 of the second engaging male buckle 14 is close to the front side of the back plate 1. The middle frame 2 is also provided with a plurality of second engaging female buckles 15, which are composed of a first clamping groove 20 opened in the bottom edge of the middle frame 2 and a second clamping groove 21 opened in the boundary frame 4. The shape of the first clamping groove 20 is matched with the convex block 18, and the shape of the second clamping groove 21 is matched with the protruding part of the extension plate 19.

[0030] When the backboard 1 and the middle frame 2 are combined, the middle frame 2 is installed from the front side to the back side of the backboard 1, and three clamping are performed during installation. First, the protrusion 18 of the first clamping male buckle 7 enters the hollow frame inside the first clamping female buckle 12 through the guide slope, the plane of the protrusion 18 is fitted with the plane of the hollow frame, and the limit in the front-back direction of the backboard 1 is formed; second, the insertion male buckle 8 is inserted into the pre-let slot 11, the vertical plate and the outer protrusion frame are fitted, and the limit in the left-right direction of the backboard 1 is formed; third, the protrusion 18 of the second clamping female buckle 15 enters the first clamping slot 20 through the guide slope, and the extension plate 19 enters the second clamping slot 21, thereby forming the limit in the up-down direction of the backboard 1.

[0031] As shown in Figure 8 , in an embodiment, the inside of the left and right sides and the top side of the backboard 1 is fixed with a plurality of first clamping male buckles 7, and the length of the first clamping male buckles 7 from the folded edge 3 is 2 cm. The first clamping male buckle 7 is composed of two folded parts 22 oppositely arranged at both ends, and the two folded parts 22 are mirror image arranged and gradually close at the ends. The rear side of the boundary frame 4 is fixed with a plurality of first clamping female buckles 12, and the first clamping female buckles 12 are T-shaped parts, and the length of the horizontal part of the T-shaped part is greater than the distance between the two ends of the folded part 22. The contact surface of the horizontal part of the T-shaped part and the horizontal part of the two folded parts 22 is provided with a guide slope.

[0032] When the backboard 1 and the middle frame 2 are combined, the middle frame 2 is installed from the front side to the back side of the backboard 1, and three clamping are performed during installation. First, the protrusion 18 of the first clamping male buckle 7 enters the hollow frame inside the first clamping female buckle 12 through the guide slope, the plane of the protrusion 18 is fitted with the plane of the hollow frame, and the limit in the front-back direction of the backboard 1 is formed; second, the insertion male buckle 8 is inserted into the pre-let slot 11, the vertical plate and the outer protrusion frame are fitted, and the limit in the left-right direction of the backboard 1 is formed; third, the protrusion 18 of the second clamping female buckle 15 enters the first clamping slot 20 through the guide slope, and the extension plate 19 enters the second clamping slot 21, thereby forming the limit in the up-down direction of the backboard 1.

[0033] As shown in Figure 8 , 9, the inside of the oblique part of the two folded parts 22 is provided with a sliding groove 23, and the sliding groove 23 is matched with a retractable rod 24 for sliding, and the two ends of the retractable rod 24 are provided with a roller 16. The retractable rod 24 is fixed with a push rod 9 in the front-back direction of the backboard 1, and the push rod 9 is arranged through the backboard 1. The end of the push rod 9 outside the backboard 1 is fixed with a pressing piece, which increases the pressing area and facilitates the movement of the retractable rod 24 along the sliding groove 23. The exposed part of the push rod 9 outside the backboard 1 can be provided with some decorative structure to assist in covering and improving the appearance of the product.

[0034] When the backboard 1 and the middle frame 2 are disassembled, the pressing piece is pressed inward, the push rod 9 drives the retractable rod 24 to move along the sliding groove 23 to the front side of the backboard 1, the two folded parts 22 are expanded outward, and the horizontal part of the T-shaped part is separated from the horizontal part of the two folded parts 22.

[0035] As shown in Figure 6As shown in FIG. 7, in an embodiment, the protrusion 18 is bent or bulged to form a similar transition to the chamfer, so that the protrusion 18 is not easy to cause perpendicular clamping debris when assembled or disassembled.

[0036] As shown in FIG. 4, the dividing frame 4 is fixed on the back plate 1, and the protrusion 18 is arranged on the top of the dividing frame 4. Figure 1 As shown in FIG. 4, the dividing frame 4 is fixed on the back plate 1, and the protrusion 18 is arranged on the top of the dividing frame 4. Figure 5 As shown in FIG. 4, the dividing frame 4 is fixed on the back plate 1, and the protrusion 18 is arranged on the top of the dividing frame 4.

[0037] As shown in FIG. 4, the dividing frame 4 is fixed on the back plate 1, and the protrusion 18 is arranged on the top of the dividing frame 4. Figure 3 As shown in FIG. 4, the dividing frame 4 is fixed on the back plate 1, and the protrusion 18 is arranged on the top of the dividing frame 4.

[0038] In the description of the present application, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "intermediate" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application, so the replacement of equivalent components or equivalent changes and modifications made within the scope of the present application patent protection should still fall within the scope of the claims of the present application.

Claims

1. A back plate assembly structure of a liquid crystal module, comprising a back plate, a flange being provided around the back plate and being outwardly turned to a front side of the back plate in a direction perpendicular to the back plate, and a middle frame being mounted outside the flange, the middle frame having a partition frame provided inside the middle frame to divide the middle frame into front and rear sides, characterized in that, The middle frame and the back plate are provided with matched mounting assemblies, which are composed of sub-buckles provided on the turn-up and female buckles provided on the middle frame.

2. The backplane assembly of claim 1, wherein the backplane assembly is configured to be a liquid crystal module. The turn-up is fixed with a plurality of first clamping sub-buckles and insertion sub-buckles. The first clamping sub-buckle is composed of an outward protrusion. The side close to the back side of the back plate is a plane, and the side close to the front side of the back plate is a guide inclined surface. The insertion sub-buckle is an outward protruding frame formed by directly extending outward from the turn-up.

3. The backplane assembly of claim 2, wherein the backplane assembly is configured to be a liquid crystal module. The protruding edge is fixed with a plurality of first clamping female buckles. The first clamping female buckle is composed of a closed hollow frame. The inner side vertical surface of the hollow frame coincides with the outer boundary of the protruding edge. The shape of the hollow frame is matched with the protrusion. The inner top wall of the hollow frame is a plane. When the protrusion is clamped into the hollow frame, the plane of the protrusion and the plane of the inner top wall of the hollow frame are matched with each other to form a limit in the front-rear direction of the back plate. A plurality of insertion female buckles are fixed on the rear side of the partition frame. The insertion female buckle is a vertical plate.

4. The backplane assembly of claim 3, wherein the plurality of liquid crystal modules are arranged in a plurality of rows and columns. At the position of the insertion female buckle, the protruding edge is also provided with a pre-allowance groove. After the insertion sub-buckle is inserted into the insertion female buckle, the height of the protruding edge and the height of the insertion female buckle are matched with the insertion sub-buckle to form a limit in the left-right direction of the back plate.

5. The backplane assembly of claim 1, wherein the backplane assembly is configured to be a liquid crystal module. The turn-up of the back plate is fixed with a plurality of first clamping sub-buckles. The first clamping sub-buckle is composed of two folded parts provided opposite to each other at two ends. The two folded parts are mirror images and gradually close to each other at the ends.

6. The backplane assembly of claim 5, wherein the plurality of liquid crystal modules are arranged in a plurality of rows and columns. The partition frame is fixed with a plurality of first clamping female buckles. The first clamping female buckle is a T-shaped part. The length of the horizontal part is greater than the distance between the two ends of the folded part.

7. The backplane assembly structure of the liquid crystal module according to claim 6, characterized in that, The inner side of the inclined part of the two folded parts is provided with a sliding groove. A retractable rod is slidably matched in the two sliding grooves. The two ends of the retractable rod are provided with rollers. The retractable rod is fixed with a push rod in the front-rear direction of the back plate. The push rod penetrates the back plate.

8. The backplane assembly of claim 3, wherein the backplane assembly is configured to be a liquid crystal module. The longitudinal height of the protrusion of the first clamping sub-buckle is greater than the height of the hollow frame of the first clamping female buckle. When the protrusion of the first clamping sub-buckle is clamped, only part of the structure enters the hollow frame of the first clamping female buckle, and the plane edge is matched with the hollow frame for limiting.

9. The backplane assembly of claim 1, wherein the backplane assembly is configured to be a liquid crystal module. The partition frame is also fixed with a plurality of limiting parts. The vertical surface of the limiting part coincides with the vertical surface of the protruding edge, and is used for secondary limiting of the part of the turn-up of the back plate without mounting assembly.

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