Liquid crystal display module FPC winding mechanism

By using a combination of lubricant and electromagnet buffer block in the FPC cable mechanism of the LCD display module, the problem of damage caused by excessive cable friction is solved, the service life of the cable is extended and the reliability of the mechanism is improved.

CN224547736UActive Publication Date: 2026-07-24深圳市益田科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
深圳市益田科技有限公司
Filing Date
2025-09-05
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the existing LCD module FPC wiring mechanism, the excessive friction between the wiring cable and the guide rail during the wiring process can easily cause damage to the surface of the wiring cable, reducing its service life.

Method used

A cable routing mechanism for LCD display modules (FPCs) was designed. The mechanism uses a storage cylinder inside the guide rail body filled with lubricating fluid. The rollers contact the lubricating fluid to reduce friction. The cable routing is decelerated by a combination of an electromagnet and a buffer block. The design of the guide rail base and heat dissipation holes enhances the stability and durability of the mechanism.

Benefits of technology

By utilizing the fluidity of the lubricant and the buffering effect of the electromagnet, the friction of the ribbon cable is reduced, extending its service life. Furthermore, the heat dissipation holes prevent dust from entering, thus improving the overall reliability and durability of the mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wire arrangement, and disclose a kind of LCD module FPC wire arrangement mechanism, including guide rail body, multiple buffer grooves and multiple installation grooves are set in guide rail body side surface.The LCD module FPC wire arrangement mechanism, corresponding storage cylinder is installed in guide rail body interior, storage cylinder interior is filled with lubricating liquid, the access of storage cylinder side surface and gyro wheel side surface are inlayed, when wire arrangement moves, it will contact with gyro wheel side surface, to be able to drive corresponding gyro wheel to rotate, gyro wheel side surface and lubricating liquid contact, to be able to constantly drive lubricating liquid to flow out, the lubricating liquid reduction in storage cylinder interior, under the elastic force of corresponding moving spring, mobile block can be pushed to move, to make that there is certain pressure in storage cylinder interior, maintain the circulation of lubricating liquid, to make that gyro wheel surface has lubricating liquid at all times, enhance lubricating effect, reduce friction, increase the protection to wire arrangement surface.
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Description

Technical Field

[0001] This utility model relates to the field of ribbon cable technology, specifically to a ribbon cable mechanism for liquid crystal display modules (FPCs). Background Technology

[0002] Simply put, an LCD module is a screen plus a backlight assembly. The display component of an LCD TV is the LCD module, which is equivalent to the picture tube in a CRT TV. Other parts include power supply circuits, signal processing circuits, and of course, the casing. The module mainly consists of the screen and the backlight assembly. These two parts are assembled together, but they operate independently (i.e., their circuits are unrelated).

[0003] The principle of LCD displays is that the backlight assembly emits uniform surface light, which is transmitted to our eyes through the LCD screen. The screen's function is to process this light at the pixel level to display images. Both components contain numerous parts. LCD modules primarily use FPC (Flexible Printed Circuit) cables for wiring connections. FPC cables are flexible connecting wires that can be bent to a certain extent; they are industrial products, generally long and strip-shaped with pluggable pin-like ends. Since FPC cables are a type of FPC, their structure is the same as that of an FPC. FPCs are generally long and strip-shaped with pluggable pin-like ends, allowing direct connection to connectors or soldering to products. The middle section typically contains wiring. Because FPC cables require a certain degree of flexibility, the base material is usually rolled copper, which is resistant to bending and flexible. The surface treatment process used for FPC cables is generally immersion gold, occasionally with anti-oxidation. However, anti-oxidation processes cannot withstand high temperatures and have lower environmental tolerance than immersion gold. Since the prices are similar, immersion gold is the most commonly used process. In addition, there are processes such as tin plating and tin spraying, but FPC temperature resistance is generally below 280 degrees Celsius, while tin spraying will reach temperatures above 300 degrees Celsius, and the solder paste has low hardness, so it is rarely used. When FPC cables are laid out, a cable laying mechanism is needed to guide the FPC cables. In the existing LCD display module FPC cable laying mechanism, due to the excessive friction between the cable and the guide rail, the surface of the cable is easily damaged, reducing the service life of the cable. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a liquid crystal display module FPC cabling mechanism, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a liquid crystal display module FPC cabling mechanism, comprising a guide rail body, wherein multiple buffer grooves and multiple mounting grooves are provided on the side of the guide rail body, the mounting grooves are disposed on both sides of the buffer grooves, and a shaft is movably mounted in each of the multiple mounting grooves, and a roller is fixedly mounted on the side of the shaft, multiple storage cylinders are fixedly embedded in both sides of the inside of the guide rail body, a moving spring is fixedly mounted on the top of each of the multiple storage cylinders, a moving block is fixedly mounted on the other end of the moving spring, a retaining ring is fixedly mounted on the inner wall of the storage cylinder, the inside of the storage cylinder is filled with lubricating fluid, and an inlet / outlet is fixedly mounted on the side of the multiple storage cylinders, the side of the inlet / outlet being in contact with the side of the roller.

[0008] Preferably, multiple storage cylinders are fixedly installed with injection ports on their sides. A limiting block is fixedly installed on the inner wall of each injection port. Two corresponding slots are opened on the side of each limiting block. A hinge seat is symmetrically fixedly installed on the inner wall of each injection port. A hinge plate is movably installed on the side of each hinge seat. A small spring is fixedly installed on the side of each hinge plate. A connecting block is fixedly installed at one end of the small spring, which passes through a slot on the limiting block. The side of the connecting block is fixedly connected to the inner wall of the injection port. Because the hinge plate is installed inside the injection port, it can rotate at a certain angle on the side of the hinge seat. Through the action of the limiting block, the hinge plate can fit against the side of the limiting block, thereby closing the opening of the injection port. The small spring, with its own elastic force, can exert a pulling force on the hinge plate, allowing it to automatically return to its original position.

[0009] Preferably, a guide rail base is fixedly installed at the bottom of the guide rail body. The guide rail base has multiple threaded holes on its side. The guide rail base at the bottom of the guide rail body facilitates the installation of the guide rail body. The guide rail base can be fixed by tightening the corresponding screws.

[0010] Preferably, an electromagnet is fixedly installed inside each of the plurality of buffer slots. A telescopic spring is fixedly installed on the side of each electromagnet, and a buffer block is fixedly installed on the other end of each telescopic spring. With the electromagnet installed in the buffer slot, when a positive current is applied, the electromagnet can attract the buffer block, thereby generating an inward pulling force on the buffer block through the action of the telescopic spring. When a reverse current is applied, the electromagnet and the buffer block repel each other. The repulsive force is greater than the pulling force of the telescopic spring, thereby causing the buffer block to move outward, which can decelerate the wiring outside the guide rail.

[0011] Preferably, the guide rail body has heat dissipation holes on its back, and a dustproof mesh cover is fixedly installed on the side of the heat dissipation holes. The heat dissipation holes on the guide rail body facilitate heat dissipation, and the dustproof mesh cover prevents dust from entering the heat dissipation holes and affecting the heat dissipation effect.

[0012] Compared with the prior art, the present invention provides a liquid crystal display module FPC cable mechanism, which has the following advantages:

[0013] 1. The LCD display module FPC ribbon cable mechanism has a corresponding storage cylinder installed inside the guide rail body. The storage cylinder is filled with lubricating fluid. The inlet and outlet on the side of the storage cylinder are in contact with the side of the roller. When the ribbon cable moves, it will contact the side of the roller, thereby driving the roller to rotate. The side of the roller contacts the lubricating fluid, thereby continuously driving the lubricating fluid to flow out. When the lubricating fluid in the storage cylinder decreases, the elastic force of the corresponding moving spring can push the moving block to move, thereby creating a certain pressure inside the storage cylinder to maintain the flow of lubricating fluid. This ensures that the surface of the roller is always covered with lubricating fluid, enhancing the lubrication effect, reducing friction, and increasing the protection of the ribbon cable surface.

[0014] 2. The LCD display module FPC cable routing mechanism uses an electromagnet installed in the buffer slot. When positive electricity is applied, the electromagnet attracts the buffer block, which in turn pulls the buffer block inward through the action of the extension spring. When reverse electricity is applied, the electromagnet and the buffer block repel each other. The repulsive force is greater than the tension of the extension spring, so the buffer block moves outward, which can decelerate the cable routing outside the guide rail. Attached Figure Description

[0015] Figure 1 This is a three-dimensional installation diagram of the structure of this utility model;

[0016] Figure 2 This is a structural diagram of the storage cylinder of this utility model;

[0017] Figure 3 This is an enlarged view of structural diagram A of this utility model;

[0018] Figure 4 This is a connection diagram of the buffer block structure of this utility model.

[0019] The components are: 1. Guide rail body; 21. Roller; 22. Storage cylinder; 221. Moving spring; 222. Moving block; 223. Retaining ring; 23. Inlet; 231. Limiting block; 232. Hinge plate; 233. Small spring; 24. Inlet / outlet; 3. Guide rail base; 41. Electromagnet; 42. Telescopic spring; 43. Buffer block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 A liquid crystal display module FPC cabling mechanism includes a guide rail body 1. The guide rail body 1 has multiple buffer grooves and multiple mounting grooves on its side. The mounting grooves are located on both sides of the buffer grooves, and shafts are movably installed in each of the multiple mounting grooves.

[0022] In the first embodiment of this utility model, a roller 21 is fixedly installed on the side of the shaft. Multiple storage cylinders 22 are fixedly embedded on both sides of the inside of the guide rail body 1. A moving spring 221 is fixedly installed on the top of each storage cylinder 22. A moving block 222 is fixedly installed on the other end of the moving spring 221. A retaining ring 223 is fixedly installed on the inner wall of the storage cylinder 22. The inside of the storage cylinder 22 is filled with lubricating fluid. An inlet / outlet 24 is fixedly installed on the side of the multiple storage cylinders 22. The side of the inlet / outlet 24 is in contact with the side of the roller 21.

[0023] Through the above technical solution, a corresponding storage cylinder 22 is installed inside the guide rail body 1. The storage cylinder 22 is filled with lubricating fluid. The inlet / outlet 24 on the side of the storage cylinder 22 is in contact with the side of the roller 21. When the cable moves, it will contact the side of the roller 21, thereby driving the roller 21 to rotate. The side of the roller 21 contacts the lubricating fluid, thereby continuously driving the lubricating fluid to flow out. When the lubricating fluid inside the storage cylinder 22 decreases, the elastic force of the corresponding moving spring 221 can push the moving block 222 to move, thereby creating a certain pressure inside the storage cylinder 22 to maintain the flow of lubricating fluid. This ensures that the surface of the roller 21 is always covered with lubricating fluid, thus enhancing the service life of the guide rail.

[0024] Specifically, multiple storage cylinders 22 are fixedly installed with injection ports 23 on their sides. Limiting blocks 231 are fixedly installed on the inner wall of the injection ports 23. The limiting blocks 231 have two corresponding slots on their sides. Hinge seats are symmetrically fixedly installed on the inner wall of the injection ports 23. Hinge plates 232 are movably installed on the side of the hinge seats. Small springs 233 are fixedly installed on the side of the hinge plates 232. A connecting block is fixedly installed at one end of the small springs 233 that passes through the slots on the limiting blocks 231. The side of the connecting block is fixedly connected to the inner wall of the injection ports 23.

[0025] Through the above technical solution, a hinge plate 232 is provided inside the injection port 23. The hinge plate 232 can rotate at a certain angle on the side of the hinge seat. Through the action of the limiting block 231, the hinge plate 232 can fit with the side of the limiting block 231, thereby closing the opening of the injection port 23. Through the provision of a small spring 233, the elastic force of the small spring 233 can exert a pulling force on the hinge plate 232, so that the hinge plate 232 can automatically return to its original position.

[0026] In the second embodiment of this utility model, a guide rail base 3 is fixedly installed at the bottom of the guide rail body 1, and multiple threaded holes are opened on the side of the guide rail base 3.

[0027] With the above technical solution, a guide rail base 3 is provided at the bottom of the guide rail body 1, which facilitates the installation of the guide rail body 1. The guide rail base 3 can be fixed by tightening the corresponding screws.

[0028] Electromagnets 41 are fixedly installed inside multiple buffer slots. Telescopic springs 42 are fixedly installed on the side of the electromagnets 41, and buffer blocks 43 are fixedly installed on the other end of the telescopic springs 42.

[0029] Through the above technical solution, an electromagnet 41 is installed in the buffer groove. When positive electricity is applied, the electromagnet 41 can attract the buffer block 43, thereby generating an inward pulling force on the buffer block 43 through the action of the telescopic spring 42. When reverse electricity is applied, the electromagnet 41 and the buffer block 43 repel each other. The repulsive force is greater than the pulling force of the telescopic spring 42, so the buffer block 43 moves outward, which can decelerate the wiring outside the guide rail.

[0030] The back of the guide rail body 1 has heat dissipation holes, and a dustproof mesh cover is fixedly installed on the side of the heat dissipation holes.

[0031] The above technical solution provides heat dissipation holes in the guide rail body 1, which facilitates heat dissipation. The dustproof mesh cover prevents dust from entering the heat dissipation holes and affecting the heat dissipation effect.

[0032] During use, the ribbon cable moves on the surface of the roller 21. A corresponding storage cylinder 22 is installed inside the guide rail body 1. The storage cylinder 22 is filled with lubricating fluid. The inlet / outlet 24 on the side of the storage cylinder 22 is in contact with the side of the roller 21. When the ribbon cable moves, it will contact the side of the roller 21, thereby driving the roller 21 to rotate. The side of the roller 21 contacts the lubricating fluid, thereby continuously driving the lubricating fluid to flow out. When the lubricating fluid in the storage cylinder 22 decreases, the elastic force of the corresponding moving spring 221 can push the moving block 222 to move, thereby creating a certain pressure inside the storage cylinder 22 to maintain the flow of lubricating fluid. This ensures that the surface of the roller 21 is always covered with lubricating fluid. When decelerating the ribbon cable, a reverse power is applied to the electromagnet 41. The electromagnet 41 and the buffer block 43 repel each other. The repulsive force is greater than the tension of the extension spring 42, thereby moving the buffer block 43 outward, which can decelerate the ribbon cable outside the guide rail.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display module FPC cabling mechanism, comprising a guide rail body (1), characterized in that: The guide rail body (1) has multiple buffer grooves and multiple mounting grooves on its side. The mounting grooves are located on both sides of the buffer grooves. A shaft is movably installed in each of the multiple mounting grooves. A roller (21) is fixedly installed on the side of the shaft. Multiple storage cylinders (22) are fixedly embedded in both sides of the inside of the guide rail body (1). A moving spring (221) is fixedly installed on the top of each of the multiple storage cylinders (22). A moving block (222) is fixedly installed on the other end of the moving spring (221). A retaining ring (223) is fixedly installed on the inner wall of the storage cylinder (22). The storage cylinder (22) is filled with lubricating fluid. An inlet / outlet (24) is fixedly installed on the side of each of the multiple storage cylinders (22). The side of the inlet / outlet (24) is in contact with the side of the roller (21).

2. The LCD module FPC cabling mechanism according to claim 1, characterized in that: Multiple storage cylinders (22) are fixedly installed with injection ports (23) on their sides, and limit blocks (231) are fixedly installed on the inner wall of the injection ports (23).

3. The LCD module FPC cabling mechanism according to claim 1, characterized in that: The bottom of the guide rail body (1) is fixedly installed with a guide rail base (3), and the guide rail base (3) has multiple threaded holes on its side.

4. The LCD module FPC cabling mechanism according to claim 1, characterized in that: An electromagnet (41) is fixedly installed inside each of the buffer slots. A telescopic spring (42) is fixedly installed on the side of each electromagnet (41), and a buffer block (43) is fixedly installed on the other end of each telescopic spring (42).

5. The LCD module FPC cabling mechanism according to claim 3, characterized in that: The back of the guide rail body (1) is provided with heat dissipation holes, and a dustproof mesh cover is fixedly installed on the side of the heat dissipation holes.

6. The LCD module FPC cabling mechanism according to claim 2, characterized in that: The limiting block (231) has two corresponding slots on its side. The inner wall of the injection port (23) is symmetrically fixed with a hinge seat. The hinge seat is movably installed with a hinge plate (232) on its side. The hinge plate (232) is fixedly installed with a small spring (233) on its side.

7. The LCD module FPC cabling mechanism according to claim 6, characterized in that: The small spring (233) passes through the slot on the limiting block (231) and a connecting block is fixedly installed at one end. The side of the connecting block is fixedly connected to the inner wall of the injection port (23).