Self-locking FPC connector
The locking block and return spring design of the self-locking FPC connector solves the problem of easy damage to the transfer plate during operation, realizes convenient locking and releasing operations, and improves the stability and service life of the connector.
Patent Information
- Application Number
- CN202422620678.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing FPC connectors are prone to damage or deformation of the transfer plate or conductive terminals during the opening and installation process, affecting the connection stability and reliability.
The fixed frame design adopts a slidable locking block and a return spring. The fast locking or releasing of the transfer plate can be achieved through the cooperation of the fixing block, the buckle and the base, avoiding damage to the connector due to direct operation.
The stability and service life of the connector are improved, the operation is more convenient, and the damage or deformation of the transfer plate or the conductive terminal is avoided.
Smart Images

Figure CN223309336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of FPC connectors, in particular to a self-locking FPC connector. Background Art
[0002] FPC connectors are an essential component of electronic devices, ensuring electrical connections and signal transmission between circuits, between circuits and devices, and between devices. The grounding spring plays a crucial role in FPC connectors. It not only provides an effective grounding path, protecting circuits from electromagnetic interference, but also directly impacts the stability and reliability of the connection between the FPC connector and the circuit board. FPC connectors come in various styles, including flip-top and drawer types, allowing users to select the appropriate connector type based on their specific needs. Flip-top connectors utilize a combination of a transfer plate, conductive terminals, and ground terminals to securely secure the circuit board within its base for a stable connection. This ensures that signals on the circuit board are accurately transmitted to other circuits or devices.
[0003] To achieve a stable connection with the circuit board, existing FPC connectors typically use a clip and a slot to secure the base to the transfer plate, firmly pressing the circuit board. However, because the clip and slot are rigidly connected, when the transfer plate needs to be opened, the operator must forcefully pry the transfer plate upward to release the clip from the slot. This operation is laborious and can easily damage or deform the transfer plate or conductive terminals, thus affecting the normal use of the electrical connector. Therefore, the present utility model proposes a self-locking FPC connector that is easy to open and install. Summary of the Invention
[0004] The utility model provides a self-locking FPC connector, which solves the problem that the transfer plate or the conductive terminal is easily damaged or deformed when the transfer plate is opened, by means of a slidable locking block in a fixing frame.
[0005] The purpose of this utility model is achieved by the following methods:
[0006] A self-locking FPC connector includes a base, a transfer plate, a conductive terminal, and a ground terminal. A fixing frame is installed on both sides of the base. A locking block that cooperates with the transfer plate is provided between the fixing frame and the base. The locking block slides with the fixing frame via a return spring. A fixing block and a buckle are respectively provided at both ends of the fixing frame. A fixing groove and a buckle that cooperate with the fixing block and the buckle are provided on both sides of the base.
[0007] Furthermore, the fixing frame includes a fixing portion and an elastic bending portion, and the fixing block and the buckle are respectively arranged on one side of the fixing portion and the elastic bending portion.
[0008] Furthermore, a limiting groove is provided through one side of the fixing frame, and the locking block is provided with a limiting block that cooperates with the limiting groove.
[0009] Furthermore, a push button for controlling the sliding of the locking block is provided on one side of the locking block.
[0010] Furthermore, the push button and the locking block are respectively provided with a mounting block and a mounting groove that cooperate with each other.
[0011] Furthermore, a boss extending outward is provided on one side of the push button, and a guide structure is provided on one side of the boss.
[0012] Furthermore, a positioning block is provided at one end of the boss, and the transfer plate is provided with a positioning groove that cooperates with the positioning block.
[0013] The beneficial effects of this utility model include: the locking blocks are quickly installed on either side of the base by engaging the fixing blocks and latches at both ends of the fixing frame with the fixing slots and latches on either side of the base. A return spring allows the locking blocks to slide within the fixing frame and engage with the pressure plate, enabling quick locking and release of the pressure plate. This makes locking and releasing the pressure plate more convenient and avoids damage to the FPC connector during operation, thereby improving the connector's stability and service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural diagram of a self-locking FPC connector of the utility model;
[0015] Figure 2 This is a cross-sectional view of a self-locking FPC connector of the present invention;
[0016] Figure 3 This is a partial cross-sectional view of a self-locking FPC connector of the present invention;
[0017] Figure 4 It is a partial enlarged view of the base in the utility model;
[0018] Figure 5 This is a schematic structural diagram of the fixing frame in the present utility model;
[0019] Figure 6 This is a schematic structural diagram of the locking block in the utility model;
[0020] Figure 7 This is a schematic diagram of the structure of the push button in the utility model;
[0021] The reference numerals in the figure are: 1-base, 1A-fixing slot, 1B-card slot, 2-turn plate, 2A-positioning slot, 3-conductive terminal, 4-ground terminal, 5-fixing frame, 5A-fixing part, 5B-elastic bending part, 5C-fixing block, 5D-buckle, 5E-limiting slot, 6-locking block, 6A-limiting block, 6B-mounting slot, 7-reset spring, 8-push button, 8A-mounting block, 8B-boss, 8C-guide structure, 8D-positioning block. DETAILED DESCRIPTION
[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.
[0023] In this embodiment, refer to Figure 1-Figure 7 The present invention specifically implements a self-locking FPC connector, comprising a base 1, a pressure plate 2, a conductive terminal 3, and a ground terminal 4. The conductive terminal 3 cooperates with the pressure plate 2 and the base 1 to firmly press the circuit board into the base 1, allowing the circuit board to cooperate with the conductive terminal 3 and the ground terminal 4 to achieve a connection. A fixing frame 5 is installed on both sides of the base 1. A locking block 6 that cooperates with the pressure plate 2 is provided between the fixing frame 5 and the base 1. The pressure plate 2 has a groove that cooperates with the locking block 6. The locking block 6 slides with the fixing frame 5 via a return spring 7. Both the fixing frame 5 and the locking block 6 have mounting holes, each of which has a latch. The return spring 7 is installed between the fixing frame 5 and the locking block 6 via the latch, allowing the locking block 6 to slide back and forth within the fixing frame 5. This allows for quick locking or releasing of the pressure plate 2. This makes locking and releasing the pressure plate 2 more convenient while avoiding damage to the FPC connector during operation. This improves the stability and service life of the connector. The two ends of the fixing frame 5 are respectively provided with a fixing block 5C and a buckle 5D, and both sides of the base 1 are provided with a fixing groove 1A and a clamping groove 1B that cooperate with the fixing block 5C and the buckle 5D. The fixing block 5C and the fixing groove 1A are connected by interference fit.
[0024] The fixing frame 5 includes a fixing portion 5A and an elastic bending portion 5B, with a fixing block 5C and a buckle 5D respectively provided on one side of the fixing portion 5A and the elastic bending portion 5B. The fixing block 5C of the fixing portion 5A cooperates with the fixing slot 1A of the base 1 to achieve a stable connection. The buckle 5D of the elastic bending portion 5B cooperates with the slot 1B of the base 1. The buckle 5D and the fixing block 5C firmly fix the fixing frame 5 on both sides of the base 1. The design of the elastic bending portion 5B ensures that the buckle 5D has a certain degree of elasticity when inserted into the slot 1B, so that it can automatically adjust its position during the insertion process, ensuring a tight fit between the buckle 5D and the slot 1B. This avoids loosening caused by improper installation.
[0025] Furthermore, a limiting slot 5E is provided through one side of the fixing frame 5, and a limiting block 6A is provided on the locking block 6 to cooperate with the limiting slot 5E. The sides of the limiting slot 5E are sized to match the limiting block 6A, ensuring that the locking block 6 can slide smoothly within the fixing frame 5 while effectively limiting the sliding range of the locking block 6 to prevent the locking block 6 from falling off. A push button 8 is provided on one side of the locking block 6 for controlling the sliding movement of the locking block 6. The push button 8 can be used to easily push the locking block 6 to slide, thereby releasing the transfer plate 2. The design of the push button 8 adopts ergonomic principles, and its shape and size are suitable for finger operation, ensuring that the user can easily and accurately control the locking block 6 when performing the release operation. This makes the locking and releasing process of the transfer plate 2 more convenient and quick.
[0026] The push button 8 and locking block 6 are each equipped with a mating mounting block 8A and mounting slot 6B. The design of mounting block 8A and mounting slot 6B ensures a tight connection between the push button 8 and locking block 6, preventing them from loosening during use. The carefully designed shape and dimensions of mounting block 8A perfectly align with mounting slot 6B, ensuring the stability and reliability of push button 8 during operation. Furthermore, the combination of mounting block 8A and mounting slot 6B provides a certain degree of torsion resistance, ensuring good performance even under frequent use or external forces.
[0027] Furthermore, one side of the push button 8 is provided with an outwardly extending boss 8B, and one side of the boss 8B is provided with a guide structure 8C. The outwardly extending boss 8B is flush with one end of the lock button, and through the guide structure 8C on one side, the transfer plate 2 can squeeze the push button 8 to make it retreat when pressed downward, and at the same time drive the lock block 6 to slide together through the push button 8, avoid direct contact between the transfer plate 2 and the lock block 6, which may cause the lock block 6 to deform or break. When the transfer plate 2 is flipped into place, the reset spring 7 pushes the lock block 6 to cooperate with the transfer plate 2, locking the transfer plate 2 in the appropriate position. A positioning block 8D is provided at one end of the boss 8B, and the transfer plate 2 is provided with a positioning groove 2A that cooperates with the positioning block 8D. The boss 8B and the locking block 6 form a sandwich, which firmly fixes the transfer plate 2 in the appropriate position. Through the cooperation between the positioning block 8D and the positioning groove 2A, a certain force must be applied when pushing the push button 8 to make the positioning block 8D disengage from the positioning groove 2A, thereby loosening the transfer plate 2, avoiding accidental bumps that cause the locking block 6 to disengage from the transfer plate 2 when the push button 8 slides, affecting the stability of the connection.
[0028] The beneficial effects of this utility model are as follows: By engaging the fixing blocks 5C and latches 5D at both ends of the fixing frame 5 with the fixing slots 1A and latching slots 1B on either side of the base 1, the locking blocks 6 are quickly installed on both sides of the base 1. Furthermore, the return spring 7 allows the locking blocks 6 to slide within the fixing frame 5 and engage with the transfer plate 2, thereby quickly locking or releasing the transfer plate 2. This makes locking and releasing the transfer plate 2 more convenient and avoids damage to the FPC connector during operation, thereby improving the connector's stability and service life.
[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.
Claims
1. A self-locking FPC connector, comprising a base (1), a transfer plate (2), a conductive terminal (3) and a ground terminal (4), characterized in that: A fixing frame (5) is installed on both sides of the base (1); a locking block (6) is provided between the fixing frame (5) and the base (1) to cooperate with the transfer plate (2); the locking block (6) is slidably matched with the fixing frame (5) through a return spring (7); a fixing block (5C) and a buckle (5D) are respectively provided at both ends of the fixing frame (5); and a fixing groove (1A) and a buckle (1B) to cooperate with the fixing block (5C) and the buckle (5D) are provided on both sides of the base (1).
2. The self-locking FPC connector according to claim 1, wherein: The fixing frame (5) comprises a fixing portion (5A) and an elastic bending portion (5B), and the fixing block (5C) and the buckle (5D) are respectively arranged on one side of the fixing portion (5A) and the elastic bending portion (5B).
3. The self-locking FPC connector according to claim 1, wherein: A limiting groove (5E) is provided through one side of the fixing frame (5), and the locking block (6) is provided with a limiting block (6A) that cooperates with the limiting groove (5E).
4. The self-locking FPC connector according to claim 1, wherein: A push button (8) for controlling the sliding of the locking block (6) is provided on one side of the locking block (6).
5. The self-locking FPC connector according to claim 4, characterized in that: The push button (8) and the locking block (6) are respectively provided with a mounting block (8A) and a mounting groove (6B) that cooperate with each other.
6. The self-locking FPC connector according to claim 4, characterized in that: One side of the push button (8) is provided with a boss (8B) extending outward, and one side of the boss (8B) is provided with a guide structure (8C).
7. The self-locking FPC connector according to claim 6, characterized in that: A positioning block (8D) is provided at one end of the boss (8B), and a positioning groove (2A) is provided on the transfer plate (2) for cooperating with the positioning block (8D).