Flexible circuit board gold finger structure

Abstract

The application discloses a flexible circuit board golden finger structure, which comprises a liquid crystal display screen, a flexible circuit board, a connecting pipe, a first connecting end, a second connecting end, a third connecting end, a connecting column, a golden finger mechanism and a mounting mechanism, the flexible circuit board is in contact with the liquid crystal display screen, the connecting pipe is fixedly connected to the flexible circuit board, the first connecting end is fixedly connected to the connecting pipe, the second connecting end is fixedly connected to the connecting pipe, the third connecting end is fixedly connected to the connecting pipe, the connecting column is fixedly connected to the first connecting end and the second connecting end, the golden finger mechanism is arranged on the connecting column, and the mounting mechanism is arranged on the flexible circuit board. The application relates to the flexible circuit board golden finger structure, which has the characteristics of convenient installation and prevention of flexible circuit board fracture.

Description

Technical Field

[0001] This invention belongs to the field of flexible circuit board technology, specifically a flexible circuit board gold finger structure. Background Technology

[0002] With the emergence of flexible displays, the application of flexible printed circuits (FPCs) is becoming increasingly widespread. Gold fingers are often set in the bonding area of ​​FPCs to bind the FPC to the display screen, thereby achieving electrical conductivity between the FPC and the display screen. However, current flexible circuit boards have some problems: 1. In existing backlight FPC circuit boards, there is one trace each on the A and K terminals of the FPC product. If the FPC trace breaks, the product will exhibit a lack of brightness. This seriously affects product usability, leading to defective products and returns, resulting in significant losses. 2. The installation process of flexible circuit boards requires multiple bolts, affecting installation efficiency. Therefore, a new gold finger structure for flexible circuit boards needs to be designed. Summary of the Invention:

[0003] The purpose of this invention is to provide a flexible circuit board gold finger structure to solve the above-mentioned problems, thereby resolving the issues mentioned in the background art.

[0004] To address the above problems, this invention provides a technical solution for a flexible circuit board gold finger structure:

[0005] A flexible circuit board gold finger structure includes a liquid crystal display screen, a flexible circuit board, a connecting tube, a first connecting end, a second connecting end, a third connecting end, a connecting post, a gold finger mechanism, and a mounting mechanism. The liquid crystal display screen contacts the flexible circuit board, the connecting tube is fixedly connected to the flexible circuit board, the first connecting end is fixedly connected to the connecting tube, the second connecting end is fixedly connected to the connecting tube, the third connecting end is fixedly connected to the connecting tube, and a connecting post is fixedly connected to both the first and second connecting ends. The gold finger mechanism is provided on the connecting post, and the mounting mechanism is provided on the flexible circuit board.

[0006] Preferably, the gold finger mechanism includes a wire sheath, a conductive post, a conductive block, a tension spring, a flexible conductive sleeve, a flexible conductive strip, a limiting rod, a limiting ring, and a first spring. A wire sheath is fixedly connected to the connecting post, and a conductive post is also fixedly connected to the connecting post. A conductive block is slidably connected inside the conductive post. A flexible conductive sleeve is fixedly connected to one of the conductive blocks, and a flexible conductive strip is fixedly connected to the other conductive block. A tension spring is provided inside the conductive post. A limiting rod is fixedly connected to one end of the flexible conductive strip, and a limiting ring is slidably connected to the outer side of the limiting rod. A first spring is provided on the outer side of the limiting rod. During the bending process of the flexible circuit board, the flexible conductive sleeve and the flexible conductive strip slide relative to each other. During this sliding process, the flexible conductive strip compresses the first spring through the limiting rod, and the tension of the tension spring keeps the conductive block in contact with the conductive post, effectively ensuring the stability of the gold finger during use.

[0007] Preferably, the wire sheath is in contact with the conductive post, and the wire sheath is made of insulating rubber material to prevent leakage.

[0008] Preferably, one end of the tension spring is fixedly connected to the conductive post, and the other end of the tension spring is fixedly connected to the conductive block. The tension spring can increase the range of motion of the flexible conductive sleeve and the flexible conductive strip, and prevent the flexible conductive sleeve and the flexible conductive strip from being stretched and damaged.

[0009] Preferably, one end of the spring is fixedly connected to the limiting ring, and the other end of the spring is fixedly connected to the limiting rod. The spring can automatically reset the flexible conductive strip by its elastic force.

[0010] Preferably, the limiting rod is slidably connected to the flexible conductive sleeve, the limiting ring is fixedly connected to the flexible conductive sleeve, the limiting ring is in contact with the flexible conductive strip, and the limiting ring can limit the spring.

[0011] Preferably, the installation mechanism includes a mounting frame, a limiting cover, a limiting block, a second spring, a handle, a T-block, and a T-slot. The mounting frame is fixedly connected to the LCD screen. The limiting cover is slidably connected to the outside of the mounting frame. The limiting block is fixedly connected to the limiting cover. The second spring is provided on the outside of the mounting frame. The handle is fixedly connected to the limiting cover. The T-block is fixedly connected to the LCD screen. The flexible circuit board has a T-slot. The handle moves the limiting cover and compresses the second spring. Then, the T-slot on the flexible circuit board slides to the outside of the T-block. Then, the rigid end of the flexible circuit board is placed on the LCD screen. After placement, the handle is released, the second spring returns to its original position, and the second spring, through its elasticity, drives the limiting block on the limiting cover to slide into the rigid end of the flexible circuit board, thereby facilitating the installation of the flexible circuit board quickly and easily.

[0012] Preferably, the T-shaped block is slidably connected to the T-shaped groove, the limiting cover is slidably connected to both the liquid crystal display screen and the flexible circuit board, the limiting block is slidably connected to the flexible circuit board, one end of the second spring is fixedly connected to the mounting bracket, and the other end of the second spring is fixedly connected to the limiting cover. The second spring can automatically reset the limiting block through its elastic force.

[0013] The beneficial effects of this invention are as follows: This invention relates to a flexible circuit board gold finger structure, which is characterized by easy installation and prevention of flexible circuit board breakage. In specific use, it has the following beneficial effects:

[0014] First, by adding a gold finger mechanism to the flexible circuit board, the three connecting ends can be connected through the gold finger mechanism after the flexible circuit board breaks, avoiding the problem of the LCD screen not being bright after the flexible circuit board is damaged. In addition, the elastic force of the tension spring and spring can also increase the stretch range between the flexible conductive strip and the flexible conductive sleeve, thereby effectively avoiding the problem of the LCD screen not being bright.

[0015] Secondly, by adding a limiting frame, a limiting cover, and a T-block to the LCD screen, the limiting block can be slid into the rigid end of the flexible circuit board by the elastic force of the second spring to limit it. The flexible end can also be limited by the T-block, thus avoiding the need to limit the flexible circuit board with bolts, making installation more convenient. Attached image description:

[0016] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A bottom view;

[0019] Figure 3 For the present invention Figure 1 An enlarged cross-sectional view of the line skin;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of the A-section structure;

[0021] Figure 5 For the present invention Figure 2 Enlarged view of the structure of section B;

[0022] Figure 6 For the present invention Figure 2 Enlarged view of the C-section structure.

[0023] In the diagram: 1. LCD screen; 2. Flexible circuit board; 3. Connecting tube; 4. First connecting end; 5. Second connecting end; 6. Third connecting end; 7. Connecting post; 8. Gold finger mechanism; 9. Mounting mechanism; 81. Wire sheath; 82. Conductive post; 83. Conductive block; 84. Tension spring; 85. Flexible conductive sleeve; 86. Flexible conductive strip; 87. Limiting rod; 88. Limiting ring; 89. Spring one; 91. Mounting bracket; 92. Limiting cover; 93. Limiting block; 94. Spring two; 95. Handle; 96. T-block; 97. T-slot. Detailed implementation method:

[0024] like Figure 1-6 As shown, the specific implementation adopts the following technical solution:

[0025] Example:

[0026] A flexible circuit board gold finger structure includes a liquid crystal display screen 1, a flexible circuit board 2, a connecting tube 3, a first connecting end 4, a second connecting end 5, a third connecting end 6, a connecting post 7, a gold finger mechanism 8, and a mounting mechanism 9. The liquid crystal display screen 1 is in contact with the flexible circuit board 2. The connecting tube 3 is fixedly connected to the flexible circuit board 2. The first connecting end 4, the second connecting end 5, and the third connecting end 6 are fixedly connected to the connecting tube 3. The first connecting end 4 and the second connecting end 5 are both fixedly connected to the connecting post 7. The gold finger mechanism 8 is provided on the connecting post 7. The mounting mechanism 9 is provided on the flexible circuit board 2.

[0027] The gold finger mechanism 8 includes a wire sheath 81, a conductive post 82, a conductive block 83, a tension spring 84, a flexible conductive sleeve 85, a flexible conductive strip 86, a limiting rod 87, a limiting ring 88, and a spring 89. The wire sheath 81 is fixedly connected to the connecting post 7, and the conductive post 82 is also fixedly connected to the connecting post 7. A conductive block 83 is slidably connected inside the conductive post 82. One of the conductive blocks 83 has a flexible conductive sleeve 85 fixedly connected to it, and the other conductive block 83 has a flexible conductive strip 86 fixedly connected to it. The conductive post 82 has an internal structure... A tension spring 84 is provided, and one end of the flexible conductive strip 86 is fixedly connected to a limiting rod 87. A limiting ring 88 is slidably connected to the outside of the limiting rod 87, and a spring 89 is provided on the outside of the limiting rod 87. During the bending process of the flexible circuit board 2, the flexible conductive sleeve 85 and the flexible conductive strip 86 slide relative to each other. During the sliding process, the flexible conductive strip 86 compresses the spring 89 through the limiting rod 87, and the tension of the tension spring 84 can keep the conductive block 83 in contact with the conductive post 82, which can effectively ensure the stability of the gold finger.

[0028] The wire sheath 81 is in contact with the conductive post 82. The wire sheath 81 is made of insulating rubber material, which can prevent leakage.

[0029] One end of the tension spring 84 is fixedly connected to the conductive post 82, and the other end of the tension spring 84 is fixedly connected to the conductive block 83. The tension spring 84 can increase the range of motion of the flexible conductive sleeve 85 and the flexible conductive strip 86, and prevent the flexible conductive sleeve 85 and the flexible conductive strip 86 from being stretched and damaged.

[0030] One end of the spring 89 is fixedly connected to the limiting ring 88, and the other end of the spring 89 is fixedly connected to the limiting rod 87. The spring 89 can automatically reset the flexible conductive strip 86 by its elastic force.

[0031] The limiting rod 87 is slidably connected to the flexible conductive sleeve 85, the limiting ring 88 is fixedly connected to the flexible conductive sleeve 85, the limiting ring 88 is in contact with the flexible conductive strip 86, and the limiting ring 88 can limit the spring 89.

[0032] The mounting mechanism 9 includes a mounting frame 91, a limiting cover 92, a limiting block 93, a second spring 94, a handle 95, a T-block 96, and a T-slot 97. The mounting frame 91 is fixedly connected to the LCD screen 1. The limiting cover 92 is slidably connected to the outer side of the mounting frame 91. The limiting block 93 is fixedly connected to the limiting cover 92. A second spring 94 is provided on the outer side of the mounting frame 91. A handle 95 is fixedly connected to the limiting cover 92. The T-block 96 is fixedly connected to the LCD screen 1. The flexible circuit board 2 has a T-slot 97. The handle 95 moves the limiting cover 92 and compresses the second spring 94. Then, the T-slot 97 on the flexible circuit board 2 slides to the outside of the T-block 96. Then, the rigid end of the flexible circuit board 2 is placed on the LCD screen 1. After placement, the handle 95 is released, the second spring 94 returns to its original position, and the second spring 94 drives the limiting block 93 on the limiting cover 92 to slide into the rigid end of the flexible circuit board 2 through its elastic force. This allows for convenient and quick installation of the flexible circuit board 2.

[0033] The T-shaped block 96 is slidably connected to the T-shaped groove 97, the limiting cover 92 is slidably connected to both the liquid crystal display screen 1 and the flexible circuit board 2, the limiting block 93 is slidably connected to the flexible circuit board 2, one end of the second spring 94 is fixedly connected to the mounting bracket 91, and the other end of the second spring 94 is fixedly connected to the limiting cover 92. The second spring 94 can automatically reset the limiting block 93 through its elastic force.

[0034] The usage state of the present invention is as follows: During the installation of the flexible circuit board 2, the flexible circuit board 2 is bent. During the bending process, the flexible conductive sleeve 85 and the flexible conductive strip 86 slide relative to each other. During the sliding process, the flexible conductive strip 86 compresses the spring 89 through the limiting rod 87, and the tension of the tension spring 84 keeps the conductive block 83 in contact with the conductive post 82, which can effectively ensure the stability of the gold finger.

[0035] During the operation of the flexible circuit board 2, the first connection end 4, the second connection end 5 and the third connection end 6 can be connected to each other through the conductive components inside the gold finger mechanism 8, thereby preventing the LCD screen 1 from becoming unusable after the flexible circuit board 2 breaks.

[0036] Pull the handle 95, which moves the limiting cover 92 and compresses the second spring 94. Then, slide the T-slot 97 on the flexible circuit board 2 to the outside of the T-block 96. Then, place the rigid end of the flexible circuit board 2 onto the LCD screen 1. After placement, release the handle 95, and the second spring 94 will return to its original position. The second spring 94 will then use its elasticity to move the limiting block 93 on the limiting cover 92 into the rigid end of the flexible circuit board 2, thus allowing for convenient and quick installation of the flexible circuit board 2.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board gold finger structure, comprising a liquid crystal display screen (1), a flexible circuit board (2), a connecting tube (3), a first connecting end (4), a second connecting end (5), a third connecting end (6), a connecting post (7), a gold finger mechanism (8), and a mounting mechanism (9), characterized in that: The liquid crystal display screen (1) is in contact with a flexible circuit board (2), a connecting tube (3) is fixedly connected to the flexible circuit board (2), a first connecting end (4) is fixedly connected to the connecting tube (3), a second connecting end (5) is fixedly connected to the connecting tube (3), a third connecting end (6) is fixedly connected to the connecting tube (3), a connecting post (7) is fixedly connected to both the first connecting end (4) and the second connecting end (5), a gold finger mechanism (8) is provided on the connecting post (7), and an installation mechanism (9) is provided on the flexible circuit board (2). The gold finger mechanism (8) includes a wire sheath (81), a conductive post (82), a conductive block (83), a tension spring (84), a flexible conductive sleeve (85), a flexible conductive strip (86), a limiting rod (87), a limiting ring (88), and a spring (89). The wire sheath (81) is fixedly connected to the connecting post (7), and the conductive post (82) is fixedly connected to the connecting post (7). The conductive block (83) is slidably connected inside the conductive post (82). A flexible conductive sleeve (85) is fixedly connected to one of the conductive blocks (83), and a flexible conductive strip (86) is fixedly connected to the other conductive block (83). A tension spring (84) is provided inside the conductive post (82). A limiting rod (87) is fixedly connected to one end of the flexible conductive strip (86). A limiting ring (88) is slidably connected to the outside of the limiting rod (87), and a spring (89) is provided on the outside of the limiting rod (87). The installation mechanism (9) includes a mounting bracket (91), a limiting cover (92), a limiting block (93), a second spring (94), a handle (95), a T-block (96), and a T-slot (97). The mounting bracket (91) is fixedly connected to the liquid crystal display screen (1). The limiting cover (92) is slidably connected to the outside of the mounting bracket (91). The limiting block (93) is fixedly connected to the limiting cover (92). The second spring (94) is provided on the outside of the mounting bracket (91). The handle (95) is fixedly connected to the limiting cover (92). The T-block (96) is fixedly connected to the liquid crystal display screen (1). The T-slot (97) is provided on the flexible circuit board (2).

2. The flexible circuit board gold finger structure according to claim 1, characterized in that: The sheath (81) is in contact with the conductive post (82), and the sheath (81) is made of insulating rubber material.

3. The flexible circuit board gold finger structure according to claim 1, characterized in that: One end of the tension spring (84) is fixedly connected to the conductive post (82), and the other end of the tension spring (84) is fixedly connected to the conductive block (83).

4. The flexible circuit board gold finger structure according to claim 1, characterized in that: One end of the spring (89) is fixedly connected to the limiting ring (88), and the other end of the spring (89) is fixedly connected to the limiting rod (87).

5. The flexible circuit board gold finger structure according to claim 1, characterized in that: The limiting rod (87) is slidably connected to the flexible conductive sleeve (85), the limiting ring (88) is fixedly connected to the flexible conductive sleeve (85), and the limiting ring (88) is in contact with the flexible conductive strip (86).

6. The flexible circuit board gold finger structure according to claim 1, characterized in that: The T-shaped block (96) is slidably connected to the T-shaped groove (97), the limiting cover (92) is slidably connected to both the liquid crystal display screen (1) and the flexible circuit board (2), the limiting block (93) is slidably connected to the flexible circuit board (2), one end of the second spring (94) is fixedly connected to the mounting bracket (91), and the other end of the second spring (94) is fixedly connected to the limiting cover (92).

Images