Fixing structure of liquid crystal screen and PCBA

Abstract

The utility model provides a fixing structure of a liquid crystal screen and a PCBA. The fixing structure comprises the liquid crystal screen, the PCBA and a liquid crystal screen tray. According to the structure, the groove is formed in the liquid crystal screen tray, the double-sided gum gasket is pasted in the groove to fix the liquid crystal screen, and meanwhile, the notch is formed so that the double-sided gum gasket can be pried up conveniently for maintenance or replacement. In addition, the PCBA and the liquid crystal screen tray are clamped and fixed through the combination mode of counter bores, sunk screws and patch nuts, and the stability of the structure is enhanced. The four corners of the liquid crystal screen tray are further provided with bayonets for further fixing the liquid crystal screen. The FPC flat cable of the liquid crystal screen can be directly inserted into the connector on the PCBA to achieve electric connection, the overall structure is compact, and assembling and maintaining are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic device installation, and particularly relates to a fixing structure between a liquid crystal screen and a PCBA. Background Technique

[0002] The fixing structure between the liquid crystal screen and the PCBA ensures the firm and reliable physical connection between the two. This firmness is crucial for the normal operation of electronic products, because any looseness or poor contact may lead to signal transmission interruption or abnormal display. During the use of electronic products, various vibrations or impacts may be encountered. The fixing structure can effectively resist these external factors, prevent the relative movement between the liquid crystal screen and the PCBA, and thus ensure the stability and durability of the connection.

[0003] The publication number CN203934107U discloses a display screen PCB assembly with a fixing device, and the structure includes a PCB board, a display screen and a fixing device (fixing frame + rubber pad). The display screen is clamped between the fixing frame and the rubber pad, and the order is the fixing frame, the display screen, the rubber pad, and the PCB board. There is a screen opening in front of the fixing frame, and there is a rearward extending through hole on the side, and then a 90-degree bent fixing leg, and the PCB board corresponds to the through hole. Although the utility model can fix the display screen, the installation and disassembly of the 90-degree bent fixing leg after setting the through hole are troublesome and require extrusion deformation. Therefore, a fixing structure between a liquid crystal screen and a PCBA is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a fixing structure between a liquid crystal screen and a PCBA, which has the advantages of being very convenient and fast in assembly and disassembly, and at the same time having a firm and reliable structure.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A fixing structure between a liquid crystal screen and a PCBA includes a liquid crystal screen tray, and is characterized in that: a groove is provided on the liquid crystal screen tray, a double-sided adhesive gasket is pasted in the groove, the other side of the double-sided adhesive gasket is pasted with a liquid crystal screen, a notch connected to the groove is provided on the liquid crystal screen tray to facilitate prying open the double-sided adhesive gasket, and a PCBA is connected to the bottom of the liquid crystal screen tray.

[0007] Further, a first counterbore is provided in the groove, a second counterbore adapted to the first counterbore is provided on the PCBA, a countersunk head screw is inserted into the first counterbore, a patch nut is provided at the bottom of the second counterbore, and the combination of the countersunk head screw and the patch nut clamps and mounts the PCBA and the liquid crystal screen tray.

[0008] Further, the four corners of the liquid crystal screen tray are convexly provided with bayonets for further fixing the liquid crystal screen.

[0009] Further, an FPC cable is provided on the liquid crystal screen, a connector is provided on the PCBA, and the FPC cable is inserted into the connector and fastened.

[0010] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0011] 1. The fixing structure of the liquid crystal screen and the PCBA fixes the liquid crystal screen through a double-sided adhesive gasket and is provided with a notch for prying open the double-sided adhesive gasket, making the assembly and disassembly of the liquid crystal screen very convenient and fast, and at the same time the structure is firm and reliable. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a schematic diagram of the PCBA of the present utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the present utility model for installing a double-sided adhesive gasket;

[0015] Figure 4 It is a schematic diagram of the structure of the PCBA and the liquid crystal screen tray assembly of the present utility model;

[0016] Figure 5 It is a bottom view of the present utility model;

[0017] Figure 6 It is a cross-sectional view of the present utility model.

[0018] In the figure: 1. Liquid crystal screen; 101. FPC cable;

[0019] 2. PCBA; 201. Second counterbore; 202. Connector;

[0020] 3. Liquid crystal screen tray; 301. Groove; 302. First counterbore; 303. Double-sided adhesive gasket; 304. Bayonet; 305. Notch;

[0021] 401. Countersunk head screw; 402. SMT nut. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] Please refer to Figure 1 Figure 3 Figure 4, A fixing structure for a liquid crystal display screen and a PCBA. There is a liquid crystal display screen tray 3. A pair of grooves 301 are provided on the liquid crystal display screen tray 3. A double-sided adhesive gasket 303 is pasted in the grooves 301. The other side of the double-sided adhesive gasket 303 is pasted with the liquid crystal display screen 1. A notch 305 connected to the groove 301 is provided on the liquid crystal display screen tray 3 to facilitate prying open the double-sided adhesive gasket 303. The bottom of the liquid crystal display screen tray 3 is connected to the PCBA 2.

[0024] By using the double-sided adhesive gasket 303, the liquid crystal display screen 1 can be quickly fixed on the liquid crystal display screen tray 3. The notch 305 is provided to facilitate prying open the double-sided adhesive gasket 303 after installation for replacement.

[0025] Further, refer to Figure 2 Figure 4 Figure 5 Figure 6 , a counterbore 302 is provided in the groove 301. A counterbore 201 adapted to the counterbore 302 is provided on the PCBA 2. A countersunk head screw 401 is inserted into the counterbore 302. There is a patch nut 402 at the bottom of the counterbore 201. The combination of the countersunk head screw 401 and the patch nut 402 clamps the PCBA 2 and the liquid crystal display screen tray 3.

[0026] The liquid crystal display screen tray 3 and the PCBA 2 are fixed together by the countersunk head screw 401 and the patch nut 402. And the counterbore 302 into which the countersunk head screw 401 is inserted is in the groove 301, so that the liquid crystal display screen 1 can be protected by the double-sided adhesive gasket 303 from contacting the countersunk head screw 401.

[0027] Further, refer to Figure 1 Figure 3 , the four corners of the liquid crystal display screen tray 3 are provided with raised bayonets 304 for further fixing the liquid crystal display screen 1.

[0028] By providing the bayonets 304, the liquid crystal display screen 1 can be fixed at a specified position without moving.

[0029] Further, refer to Figure 1 Figure 2 Figure 6 , an FPC cable 101 is provided on the liquid crystal display screen 1. A connector 202 is provided on the PCBA 2. The FPC cable 101 is inserted into the connector 202 and buckled.

[0030] The liquid crystal display screen 1 and the PCBA 2 are connected by the FPC cable 101. The FPC cable 101 is relatively fragile and is easily broken under external force. Through this fixing structure, the FPC cable 101 can be fixed and is not easily affected by external force.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing structure of a liquid crystal screen and a PCBA, comprising a liquid crystal screen tray (3), characterized in that: The LCD tray (3) is provided with a groove (301), a double-sided adhesive gasket (303) is pasted in the groove (301), the other side of the double-sided adhesive gasket (303) is pasted with the LCD (1), the LCD tray (3) is provided with a notch (305) connected to the groove (301) to facilitate prying open the double-sided adhesive gasket (303), and the bottom of the LCD tray (3) is connected to the PCBA (2).

2. The fixing structure of a liquid crystal screen and a PCBA according to claim 1, characterized in that: A countersunk hole (302) is arranged in the groove (301), a countersunk hole (201) adapted to the countersunk hole (302) is arranged on the PCBA (2), a countersunk screw (401) is inserted into the countersunk hole (302), a patch nut (402) is arranged at the bottom of the countersunk hole (201), and the countersunk screw (401) and the patch nut (402) are combined to clamp the PCBA (2) and the LCD tray (3).

3. The fixing structure of a liquid crystal screen and a PCBA according to claim 1, characterized in that: The four corner protrusions of the liquid crystal screen tray (3) are provided with snap-on sockets (304) for further fixing the liquid crystal screen (1).

4. The fixing structure of a liquid crystal screen and a PCBA according to claim 1, characterized in that: The liquid crystal screen (1) is provided with an FPC cable (101), the PCBA (2) is provided with a connector (202), and the FPC cable (101) is inserted into the connector (202) for fastening.

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