A folding FPC connector lock mechanism

Abstract

The utility model relates to electric connector technical field especially relates to a folding FPC connector lock catch mechanism, including base, the base inside bottom is provided with the installation groove that connects FPC, the outside side of base is provided with the pin, the inside rotation of base is provided with first rotation axis, is provided with the apron on first rotation axis. Through setting up the linkage lock catch mechanism that push block, slider, elastic part, oblique sliding slot, slide rod and briquetting piece constitute, realize the automatic pressure of apron and locking, when the rotation board is pressed reset inwards, push block promotes slider to overcome the elastic force of elastic part and moves inwards, drives slide rod to move downward along oblique sliding slot, makes briquetting piece to press down apron, ensures apron firm pressure FPC, effectively avoids apron loosening or FPC contact badly due to vibration, impact or external force touch, significantly improves the stability and reliability of connection.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a folding FPC connector locking mechanism. Background Technology

[0002] Flexible printed circuit boards (FPCs) are widely used in smartphones, tablets, wearable devices, automotive electronics, and industrial control due to their advantages such as being thin, flexible, and having high-density wiring. In the connection between FPCs and main control boards or other circuit modules, FPC connectors serve as key interface components, undertaking the dual functions of electrical connection and mechanical fixation.

[0003] Currently, most common FPC connectors adopt a flip-top structure, mainly consisting of an insulating base, a rotatable cover, and pin terminals located on both sides of the base. In use, the FPC is inserted into the slot of the base, and the flip-top cover is used to press the FPC in place to achieve electrical connection. However, some existing flip-top FPC connectors have obvious defects: their covers lack an effective locking mechanism. In the absence of a latch or with insufficient locking force, the cover relies solely on structural elasticity or simple snap-fit ​​to maintain a closed state. When the device is subjected to external vibration, impact, or accidental contact during assembly, the cover is prone to loosening or even opening automatically, causing the FPC to lose contact and resulting in signal interruption, poor contact, or functional failure, which seriously affects the stability and reliability of product operation.

[0004] Therefore, there is an urgent need to provide a foldable FPC connector locking mechanism with reliable locking function, which can effectively prevent the cover from being accidentally opened during use and improve the stability and assembly efficiency of FPC connection. Utility Model Content

[0005] In order to overcome the shortcomings of existing flip-type FPC connectors, such as the lack of an effective locking mechanism, easy loosening or accidental opening of the cover due to external impact, which leads to poor FPC contact or connection failure, this utility model provides a folding FPC connector locking mechanism.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a foldable FPC connector locking mechanism, comprising a base, an mounting groove for connecting an FPC being formed at the bottom of the base, pins being provided on the outer side of the base, a first rotating shaft being rotatably arranged inside the base, a cover plate being provided on the first rotating shaft, symmetrical oblique sliding grooves being formed on the two inner side walls of the base, a sliding rod being slidably arranged inside the oblique sliding groove, a pressure block being fixedly connected to one end of the sliding rod near the cover plate, a slot being formed on both inner sides of the base, a slider being slidably arranged inside the slot, a guide groove being formed on the side of the slider to slide and engage with the other end of the sliding rod, an elastic element being connected to the inner wall of the slot, a second rotating shaft being rotatably arranged on both sides of the base, a rotating plate being provided on the second rotating shaft, and a push block being provided on the inner side of the rotating plate to engage with the slider.

[0007] Furthermore, the top of the mounting groove and the bottom of the cover plate are provided with guide slopes to guide the insertion of the FPC.

[0008] Furthermore, the contact surfaces of the pusher and the slider are mutually matching inclined surfaces.

[0009] Furthermore, grooves are provided on both sides of the base near the rotating plate.

[0010] Furthermore, positioning grooves are provided on both sides of the base, and elastic buckles with inverted buckles are fixed to the inner side of the rotating plate.

[0011] Furthermore, a rubber strip is provided on the pressing surface of the cover plate facing the FPC.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By setting a linkage locking mechanism composed of a rotating plate, a push block, a slider, an elastic element, an inclined slide groove, a slide rod, and a pressure block, the cover plate is automatically pressed and locked. When the rotating plate is pressed inward to reset, the push block pushes the slider to move inward against the elastic force of the elastic element, which drives the slide rod to move downward along the inclined slide groove, so that the pressure block presses down on the cover plate, ensuring that the cover plate firmly presses the FPC, effectively avoiding the cover plate loosening or poor FPC contact caused by vibration, impact or external force, and significantly improving the stability and reliability of the connection.

[0013] 2. By setting up positioning grooves and elastic buckles, the elastic buckles are used to lock into the positioning grooves to achieve self-locking in the closed state, preventing the rotating plate from accidentally popping open due to vibration or external force. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2This is a three-dimensional sectional view of the base, first rotating shaft, and cover plate of this utility model.

[0016] Figure 3 This is an exploded view of the base, pins, and cover plate of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the base, second rotating shaft, and pressure block of this utility model.

[0018] Figure 5 This is a three-dimensional sectional view of the base, pressure block, and slider of this utility model.

[0019] Figure 6 This is an exploded view of the slider, rotating plate, and pusher block of this utility model.

[0020] In the attached diagram: 1: base, 2: mounting groove, 3: pin, 4: first rotating shaft, 5: cover plate, 6: oblique slide groove, 7: slide rod, 8: pressure block, 9: slot, 10: slider, 11: guide groove, 12: elastic element, 13: second rotating shaft, 14: rotating plate, 15: push block, 16: groove, 17: positioning groove, 18: elastic buckle, 19: rubber strip. Detailed Implementation

[0021] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Example 1: Please refer to Figures 1-6A foldable FPC connector locking mechanism includes a base 1, with an mounting groove 2 for connecting an FPC at its bottom. Pins 3 are located on the rear side of the base 1 for connecting to an external circuit. A first rotating shaft 4 is rotatably mounted inside the base 1, and a cover plate 5 is mounted on the first rotating shaft 4. The cover plate 5 is located above the mounting groove 2 and can rotate around the first rotating shaft 4 to open or close the mounting groove 2. Furthermore, guide slopes are provided at the top of the mounting groove 2 and the bottom of the cover plate 5 to guide the insertion of the FPC smoothly. A rubber strip 19 is provided on the pressing surface of the cover plate 5 facing the FPC to apply pressure evenly and protect the FPC surface when the cover plate 5 is closed. Inclined grooves 6 are symmetrically provided on the left and right side walls inside the base 1. A sliding rod 7 is slidably mounted inside the inclined groove 6. A pressure block 8 is fixedly connected to one end of the sliding rod 7 near the cover plate 5. Located above the cover plate 5, and used to press the cover plate 5 downward, the base 1 has slots 9 on both the left and right sides inside. A slider 10 is slidably installed inside the slot 9. A guide groove 11 is provided on the side of the slider 10 to slide and cooperate with the other end of the slide rod 7. An elastic element 12 is connected to the inner wall of the slot 9 to provide an outward elastic restoring force to the slider 10. A second rotating shaft 13 is rotatably installed on both the left and right sides of the base 1. A rotating plate 14 is installed on the second rotating shaft 13. A groove 16 is provided on the left and right sides of the base 1 near the rotating plate 14 to facilitate the insertion of fingers and the manipulation of the rotating plate 14. A push block 15 is provided on the inner side of the rotating plate 14 to contact and cooperate with the slider 10. The contact surface between the push block 15 and the slider 10 is a matching inclined surface, so that when the rotating plate 14 rotates inward, the slider 10 can be pushed inward by the inclined surface on the push block 15.

[0023] Initially, the rotating plate 14 is closed, the pusher 15 presses against the slider 10, and the elastic element 12 is compressed by the slider 10. When it is necessary to connect the FPC, the rotating plate 14 is pried outward from the groove 16, the pusher 15 disengages from the slider 10, and the elastic element 12 releases its elastic force, pushing the slider 10 to return to its original position. The slider 10 drives the slide rod 7 to slide upward along the inclined slide groove 6 through the guide groove 11, and the pressure block 8 moves upward accordingly, relieving the pressure on the cover plate 5. At this time, the cover plate 5 can freely rotate upward around the first rotating axis 4 and is in the open state. The operator can then access the cover plate from the guide groove 2. The FPC is inserted into the mounting slot 2 in the base 1, ensuring good contact between the FPC electrode and the pin 3. Then, the cover plate 5 is flipped down to initially cover the FPC. Subsequently, the rotating plate 14 is pressed inward. The push block 15 on the rotating plate 14 gradually squeezes the slider 10 through the inclined surface, forcing the slider 10 to overcome the elastic force of the elastic element 12 and slide inward. When the slider 10 moves inward, the guide groove 11 on it pushes the slide rod 7 to slide downward along the inclined slide groove 6, thereby driving the pressure block 8 to move downward, pressing the cover plate 5, so that the cover plate 5 firmly presses the FPC, achieving a reliable connection.

[0024] Example 2: Based on Example 1, please refer to... Figure 2 , Figure 4 and Figure 6 The base 1 has positioning grooves 17 on both the left and right sides. The rotating plate 14 has an elastic buckle 18 with a buckle attached to its inner side. The elastic buckle 18 can be elastically inserted into the positioning groove 17 so that the rotating plate 14 is stably positioned in the closed state.

[0025] When the operator pries the rotating plate 14 outward to unlock it, the rotating plate 14 rotates around the second rotating shaft 13. During the rotation, the elastic buckle 18 on its inner side is dislodged from the positioning groove 17 by force. When the rotating plate 14 is reset, the elastic buckle 18 is locked into the positioning groove 17 under the action of elasticity, realizing the self-locking position of the closed state and preventing the rotating plate 14 from accidentally popping open due to vibration or external force.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A folding FPC connector locking mechanism, comprising a base (1), wherein the bottom of the base (1) is provided with a mounting groove (2) for connecting an FPC, pins (3) are provided on the outer side of the base (1), and a first rotating shaft (4) is rotatably provided inside the base (1), and a cover plate (5) is provided on the first rotating shaft (4), characterized in that, The base (1) has symmetrical oblique grooves (6) on both sides inside. A slide rod (7) is slidably arranged inside the oblique groove (6). A pressure block (8) is fixed to one end of the slide rod (7) near the cover plate (5). A slot (9) is opened on both sides inside the base (1). A slider (10) is slidably arranged inside the slot (9). A guide groove (11) is opened on the side of the slider (10) to slide with the other end of the slide rod (7). An elastic element (12) is connected between the slider (10) and the inner wall of the slot (9). A second rotating shaft (13) is rotatably arranged on both sides of the base (1). A rotating plate (14) is arranged on the second rotating shaft (13). A push block (15) is arranged on the inner side of the rotating plate (14) to contact and cooperate with the slider (10).

2. The folding FPC connector locking mechanism according to claim 1, characterized in that, The top of the mounting groove (2) and the bottom of the cover plate (5) are provided with guide slopes to guide the insertion of the FPC.

3. The folding FPC connector locking mechanism according to claim 2, characterized in that, The contact surfaces of the pusher (15) and the slider (10) are mutually matched inclined surfaces.

4. The folding FPC connector locking mechanism according to claim 3, characterized in that, The base (1) has grooves (16) on both sides near the rotating plate (14).

5. A folding FPC connector locking mechanism according to claim 4, characterized in that, The base (1) has positioning grooves (17) on both sides, and the rotating plate (14) has an elastic buckle (18) with a buckle fixed inside.

6. The folding FPC connector locking mechanism according to claim 5, characterized in that, A rubber strip (19) is provided on the pressing surface of the cover plate (5) facing the FPC.

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