Buckle structure, display module and display device

Abstract

The utility model is suitable for the technical field of display device structures, provides a buckle structure, a display module and a display device, and realizes rapid fixation of circuit boards of different models and sizes. The buckle structure mainly comprises a buckle fixing block and a buckle moving block, a matching structure fixed with a backlight module of the display device is arranged on the bottom surface of the strip-shaped buckle fixing block; a first containing structure facing the first direction is arranged on the front face of the buckle fixing block, and the first direction is parallel to the bottom face of the buckle fixing block. The front face of the buckle fixing block is further provided with a first buckle connecting structure movably connected with the buckle moving block. The buckle moving block is provided with a second buckle connecting structure which is matched with the first buckle connecting structure to achieve sliding clamping. A second containing structure facing the second direction is arranged on the front face of the buckle moving block, and the second direction is opposite to the first direction so that the second containing structure and the first containing structure can be matched to fix the same circuit board placed in the second containing structure and the first containing structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of card display device structures, and in particular relates to a buckle structure, a display module and a display device. Background Art

[0002] LCD modules are usually used in display devices such as televisions and monitors. The printed circuit board (PCB) used in the LCD module is usually small in size, with a width of 15 to 30 mm. Since the printed circuit board is small in size and light in weight, it is mainly fixed to the backlight hardware carrier board of the LCD module by double-sided tape or foam. Since the surface of the printed circuit board is uneven due to various components, the stability of the pasting connection in this solution is not ideal, which often easily causes the printed circuit board PCB to shift or shake, thereby causing the flexible printed circuit board (Chip On Flex, COF) connected between the printed circuit board PCB and the LCD module to be torn and damaged. In addition, the printed circuit board is fixed to the backlight hardware carrier board of the LCD module by fasteners such as screws, but this solution is not easy to promote and use because the hole spacing and size of the screws corresponding to the printed circuit boards of different models or manufacturers may be different.

[0003] In view of this, there is an urgent need in the prior art for a fixing structure of a circuit board of a display module with strong compatibility. Utility Model Content

[0004] The utility model provides a buckle structure, a backlight module and a display device, which can realize the rapid fixing of circuit boards compatible with different models and sizes.

[0005] In a first aspect, the utility model provides a buckle structure, comprising: a buckle fixing block and a buckle moving block;

[0006] The bottom surface of the strip-shaped buckle fixing block is provided with a matching structure fixed to the display module of the display device;

[0007] A first accommodating structure facing a first direction is provided on the front side of the buckle fixing block, and the first direction is parallel to the bottom surface of the buckle fixing block;

[0008] The front side of the buckle fixing block is also provided with a first buckle connection structure movably connected to the buckle moving block;

[0009] The buckle moving block is provided with a second buckle connection structure adapted to the first buckle connection structure to achieve sliding buckle connection;

[0010] A second accommodating structure facing a second direction is provided on the front side of the buckle moving block, and the second direction is opposite to the first direction, so that the second accommodating structure cooperates with the first accommodating structure to fix the same circuit board placed therein.

[0011] Optionally, a first direction toward which the first containing structure faces is located on the same straight line as a second direction toward which the second containing structure faces.

[0012] Optionally, the first accommodating structure and the second accommodating structure are arranged opposite to each other.

[0013] Optionally, the thickness of the circuit board accommodated by the first containing structure is the same as the thickness of the circuit board accommodated by the second containing structure.

[0014] Optionally, the first snap-fit ​​connection structure is a limiting column, and the second snap-fit ​​connection structure is a limiting groove.

[0015] Optionally, the limiting groove is specifically a chain limiting groove, and the limiting column is specifically a chain limiting column;

[0016] The top of each column of the chain-type limiting column is provided with a column cap;

[0017] The distance between the column cap of each column of the chain-type limiting column and the front face of the buckle fixing block is a first distance;

[0018] The wall thickness of the chain limiting groove is less than or equal to the first distance, so that the chain limiting column is placed in the chain limiting groove to achieve slidable engagement.

[0019] Optionally, the matching structure includes: one or more of an adhesive plate, a buckle, and a fastener connection hole.

[0020] Optionally, the buckle fixing block and / or the buckle moving block are formed by injection molding extrusion process or machine tool cutting process.

[0021] In a second aspect, the present application provides a backlight module, which uses one or more of the snap-fit ​​structures described in the first aspect to fix a circuit board.

[0022] In a third aspect, the present application provides a display device, comprising the backlight module described in the second aspect.

[0023] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0024] The buckle structure of the utility model comprises: a buckle fixing block and a buckle moving block; wherein, the bottom surface of the strip-shaped buckle fixing block is provided with a matching structure fixed to the backlight module of the display device, for realizing a matching connection with the backlight module; the front surface of the buckle fixing block is provided with a first accommodating structure facing a first direction, and the first direction is parallel to the bottom surface of the buckle fixing block; the front surface of the buckle fixing block is also provided with a first buckle connecting structure movably connected to the buckle moving block; the buckle moving block is provided with a second buckle connecting structure adapted to the first buckle connecting structure to realize sliding connection, and the buckle moving block can be movably connected on the buckle fixing block; the front surface of the buckle moving block is provided with a second accommodating structure facing a second direction, and the second direction is opposite to the second direction, so that the second accommodating structure cooperates with the first accommodating structure to fix the same circuit board placed therein, so as to realize quick fixation of circuit boards of different models and sizes that are compatible and adaptable on the backlight module through the buckle structure of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of an embodiment of the buckle structure of the utility model;

[0026] Figure 2 yes Figure 1 A cross-sectional view of an embodiment of the buckle structure along AA;

[0027] Figure 3 It is a structural schematic diagram of another embodiment of the buckle structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the effect of an embodiment of the buckle structure of the utility model being compatible with fixing a circuit board. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] In order to explain the structure of the buckle structure of the utility model in detail, the X-axis direction, Y-axis direction and Z-axis direction of the three-dimensional coordinate system are predefined in this embodiment, wherein the Y-axis direction in this embodiment is consistent with the moving direction of the buckle moving block of the buckle structure, the Z-axis direction is perpendicular to the front or bottom surface of the buckle fixing block, and the X-axis direction is often the insertion and placement direction of the circuit board, please refer to Figure 1 Based on the above understanding, the buckle structure of the utility model specifically includes: a buckle fixing block 100, a buckle moving block 200; the bottom surface of the strip-shaped buckle fixing block 100 (such as Figure 1The lower side of the buckle fixing block 100 shown in the figure (not shown) is provided with a matching structure fixed to the display module 300 of the display device (usually the back side of the display module 300); the front side of the buckle fixing block 100 is provided with a first direction (for example Figure 1 The first receiving structure 110 is parallel to the bottom surface of the buckle fixing block 200; the front surface 120 of the buckle fixing block 100 (as shown in the Y-axis direction to the right) is parallel to the bottom surface of the buckle fixing block 200; Figure 1 The upper side of the buckle fixing block 100 shown in FIG. 1 is also provided with a first buckle connection structure movably connected to the buckle moving block 200; the buckle moving block 200 is provided with a second buckle connection structure adapted to the first buckle connection structure, and the first buckle connection structure and the second buckle connection structure are slidably connected; the front side 220 (as shown in FIG. 100 ) of the buckle moving block 200 Figure 1 The upper side of the buckle moving block 200 shown in FIG. 1 is provided with a second containing structure 210 facing a second direction. The second direction facing the second containing structure 210 is opposite to the first direction of the first containing structure 110, so that the second containing structure 210 cooperates with the first containing structure 110 to fix the same circuit board (for example, Figure 4 As shown in FIG. 4 , the circuit board 400 is shown in FIG. 4 . It can be seen that the buckle structure of the utility model can be compatible with the circuit boards of different models and sizes and can be quickly fixed on the backlight module. Preferably, the buckle movable block 200 and the buckle fixed block 100 of the buckle structure of the utility model can be adjusted in the Y-axis range of 15 to 30 mm, which can meet the fixing and connection requirements of the driving circuit boards of almost all display modules on the market.

[0031] Furthermore, the first direction of the first containing structure 110 of the buckle structure of the present invention and the second direction of the second containing structure 210 are located on the same straight line, so that the buckle moving block 200 can slide and approach the buckle fixing block 100 on a straight line to clamp the circuit board placed therein. Specifically, the first containing structure 110 and the second containing structure 210 of the buckle structure of the present invention are arranged opposite to each other.

[0032] Furthermore, the thickness of the circuit board accommodated by the first containing structure 110 of the buckle structure of the utility model is the same as the thickness of the circuit board accommodated by the second containing structure 210, so that similar clamping force or space can be applied to the circuit boards of the same thickness; specifically, in order to adapt to clamping or clamping circuit boards of different thicknesses, the thickness of the circuit board accommodated by the first containing structure 110 and the thickness of the circuit board accommodated by the second containing structure 210 can be reduced by sticking a sponge or silicone pad on the inner wall of the containing structure, and can also play a buffering role, that is, buffering limits the movement of the circuit board in the Z-axis direction. Preferably, the first containing structure 110 and the second containing structure 210 of the utility model are both card slots, specifically card slots with a cross section of a "C"-shaped or inverted "F"-shaped relative arrangement of the Y-axis. In addition, since the front side 120 of the snap-fitting block 100 needs to accommodate the sliding of the snap-fitting moving block 200, in order to support the circuit board in the same plane as the second containing structure 210 of the snap-fitting moving block 200, the first containing structure 110 of the snap-fitting block 100 is provided with a supporting platform 111, and the surface of the supporting platform 111 is located in the same plane as the front side 220 of the movable snap-fitting moving block 200, so that the first containing structure 110 of the snap-fitting block 100 and the second containing structure 210 of the snap-fitting moving block 200 can place the circuit board on the same plane, so that the circuit board can be placed more stably and reduce pressure and bending.

[0033] Further, such as Figure 2 as well as Figure 3 As shown, Figure 3 The buckle moving block 200 shown is Figure 1A schematic diagram of an embodiment after the state is flipped 180 degrees, so as to provide a more detailed description of the buckle moving block 200. The first buckle connection structure of the buckle structure of the utility model is a limit column 130, preferably a plurality of limit columns 130 are arranged at intervals along the sliding direction of the buckle moving block; the second buckle connection structure is a limit groove, preferably a plurality of limit column clamping positions 232 matching the positions of the plurality of limit columns 130 are provided in the limit groove 230, usually the number of limit column clamping positions 232 is greater than the number of limit columns 130, and the diameter size of the limit column clamping position 232 is equivalent to that of the limit column 130, which is used to clamp and limit the limit column 130 in the X-axis direction. Movement; and a limiting column slot 233 is provided between the several limiting column engaging positions 232 of the limiting groove 230, and the width dimension of the limiting column slot 233 is slightly smaller than the diameter dimension of the limiting column engaging position 232, so that the buckle sliding block 200 of the limiting column engaging positions 232 of the limiting groove 230 cannot slide and move easily along the Y axis, and it is necessary to overcome the recoverable deformation resistance of the limiting column slot 233 in the limiting groove 230 to achieve the sliding engagement of the buckle moving block 200 on the buckle fixing block 100. Specifically, a column cap 131 is also provided at the top of the limiting column 130, and the column cap 131 is adapted to the column cap slot 231 of the limiting groove 230, and the column cap slot 231 limits the movement of the column cap 131 in the Z-axis direction and the X-axis direction; preferably, the column cap 131 has a diameter dimension larger than the limiting column 130. Specifically, the limit groove 230 is specifically a chain limit groove, which is specifically composed of a concave and convex arc surface, and its material is deformable silicone or plastic. The tightening effect can be achieved according to the elastic properties of silicone or plastic. The limit column 130 is specifically a chain limit column (that is, a plurality of limit columns 130 are arranged at intervals along the sliding direction of the buckle moving block, such as Figure 3 As shown); the top of each column of the chain limiting column has a column cap 131; the distance between the column cap 131 of each column of the chain limiting column and the front side of the buckle fixing block 100 is a first distance L; the wall thickness of the chain limiting groove is less than or equal to the first distance L, so that the chain limiting column is placed in the chain limiting groove to achieve slidable snap connection.

[0034] The matching structure for fixing the above-mentioned buckle structure of the utility model to the display module 300 (usually the back of the display module 300) of the display device can be one or more of: an adhesive plate, a buckle, and a fastener connection hole. Specifically, the matching structure is fixed to the back plate of the display module 300, the buckle moving block 200 is adjusted to the widest position, and after the circuit board 400 is placed on the supporting platform 111 of the first accommodating structure 110 in the buckle fixing block 100 from the X-axis direction, the buckle moving block 200 is moved to a width position suitable for clamping the circuit board 400, so that the circuit board 400 can be fixed.

[0035] Specifically, the buckle fixing block 100 and / or the buckle moving block 200 in the buckle structure of the utility model can be formed by injection molding and extrusion technology or machine tool cutting.

[0036] In addition, the present invention also provides a display module, which uses one or more of the buckle structures mentioned in the above embodiments to fix the circuit board 400, for example Figure 4 As shown, two buckle structures are used to hierarchically fix the circuit board 400 with multiple (two) steps (i.e., at least one buckle structure is used to fix it on each step of the circuit board), and the buckle structure is fixed to the backlight hardware carrier board of the display module 300 through the above-mentioned matching structure to prevent the flexible circuit board (Chip On Flex, COF) connected between the circuit board 400 and the display module 300 from being torn and damaged due to excessive displacement of the circuit board 400. It can be seen that the display module of this embodiment adopts the above-mentioned buckle structure solution to achieve compatible fixation of circuit boards of different widths, avoid circuit board jumping and flexible circuit board damage, thereby greatly reducing mold opening, material management and rework labor costs, and achieving cost reduction and efficiency improvement.

[0037] In addition, the present invention also seeks to protect a display device using the display module of the above embodiment, for example, the display device is a television, a monitor, etc.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The buckle structure is characterized by: Including: a buckle fixing block and a buckle moving block; The bottom surface of the strip-shaped buckle fixing block is provided with a matching structure fixed to the display module of the display device; A first accommodating structure facing a first direction is provided on the front side of the buckle fixing block, and the first direction is parallel to the bottom surface of the buckle fixing block; The front side of the buckle fixing block is also provided with a first buckle connection structure movably connected to the buckle moving block; The buckle moving block is provided with a second buckle connection structure adapted to the first buckle connection structure to achieve sliding buckle connection; A second accommodating structure facing a second direction is provided on the front side of the buckle moving block, and the second direction is opposite to the first direction, so that the second accommodating structure cooperates with the first accommodating structure to fix the same circuit board placed therein.

2. The buckle structure according to claim 1, characterized in that: A first direction facing the first containing structure and a second direction facing the second containing structure are located on the same straight line.

3. The buckle structure according to claim 1, characterized in that: The first accommodating structure and the second accommodating structure are arranged opposite to each other.

4. The buckle structure according to claim 1, characterized in that: The thickness of the circuit board accommodated by the first containing structure is the same as the thickness of the circuit board accommodated by the second containing structure.

5. The buckle structure according to claim 1, characterized in that: The first buckle connection structure is a limiting column, and the second buckle connection structure is a limiting groove.

6. The buckle structure according to claim 5, characterized in that: The limiting groove is specifically a chain limiting groove, and the limiting column is specifically a chain limiting column; The top of each column of the chain-type limiting column is provided with a column cap; The distance between the column cap of each column of the chain-type limiting column and the front face of the buckle fixing block is a first distance; The wall thickness of the chain limiting groove is less than or equal to the first distance, so that the chain limiting column is placed in the chain limiting groove to achieve slidable engagement.

7. The buckle structure according to claim 1, characterized in that: The matching structure includes: one or more of an adhesive plate, a buckle, and a fastener connection hole.

8. The buckle structure according to claim 1, characterized in that: The buckle fixing block and / or the buckle moving block are formed by injection molding extrusion process or machine tool cutting process.

9. A display module, characterized in that: One or more snap-fit ​​structures described in claims 1 to 8 are used to fix the circuit board.

10. A display device, characterized in that The display module comprises the display module described in claim 9.

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