A vibration-resistant FPC connector with double locking mechanism

Abstract

This utility model relates to a vibration-resistant FPC connector with double locking, including a base, a rear cover on the base, and terminals. The base has a slot for inserting the FPC and a limiting groove for installing the terminals. The rear cover is rotatably connected to the base and has a pushing part for pushing the terminals and a pressing part for operation. One end of the terminal extends into the slot, and the other end is correspondingly set with the pushing part of the rear cover. A front cover is provided on the base within the slot. The front cover has locking components on both sides that cooperate with the base to lock. Through the double locking structure formed by the front cover and the rear cover, the front cover is tightly engaged with the base through the locking components on both sides, which can firmly press the front end of the FPC. The rear cover clamps the FPC by pushing the terminals and realizes electrical connection, which effectively avoids the problem of poor contact caused by the loosening of a single lock and significantly improves the vibration resistance and connection reliability of the connector.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to an anti-vibration FPC connector with double locking. Background Technology

[0002] Existing rear-clamp FPC connectors typically clamp and secure the FPC by pushing the terminals together with a rear pressure cap. Their locking structure is simplistic, relying primarily on the elastic clamping force of the terminals and the unidirectional pushing action of the rear pressure cap. Under complex operating conditions such as vibration and impact, the FPC is prone to axial movement or lateral shifting due to the lack of effective front-end fixation. This leads to unstable contact pressure between the terminals and the FPC, and may even result in poor contact or signal interruption. Especially in fields with extremely high reliability requirements, such as automotive electronics and industrial control, a single locking structure is insufficient to meet vibration resistance requirements. Frequent loosening or failure can severely impact the normal operation of equipment and increase maintenance costs. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-vibration FPC connector with double locking.

[0004] The objective of this utility model can be achieved through the following technical solution: A vibration-resistant FPC connector with double locking includes a base, a rear cover on the base, and terminals. The base has a slot for inserting the FPC and a limiting groove for installing the terminals. The rear cover is rotatably connected to the base and has a pushing part for pushing the terminals and a pressing part for operation. One end of the terminal extends into the slot, and the other end is correspondingly provided with the pushing part of the rear cover. A front cover is provided on the base inside the slot, and locking components that cooperate with the base to lock the connection are provided on both sides of the front cover.

[0005] Preferably, the locking assembly includes protrusions on both sides of the front pressure cover, with locking pins movably mounted on the protrusions. The two locking pins are connected by a cross arm, and a step is provided on the rubber seat corresponding to the protrusion, with a groove on the step that cooperates with the locking pin.

[0006] Preferably, the front pressure cover has an avoidance groove corresponding to the limiting groove.

[0007] Preferably, the terminal includes an upper clamping arm and a lower clamping arm, the upper clamping arm and the lower clamping arm are connected in the middle by a connecting arm, one end of the upper clamping arm and the lower clamping arm extends into the slot and is provided with a contact, and the other end extends to the corresponding position of the push part of the rear cover, and a welding foot is connected to the lower clamping arm.

[0008] Preferably, the lower clamping arm is provided with a fixing arm, and the fixing arm is provided with a limiting protrusion.

[0009] Preferably, the rear pressure cover includes a support portion, a groove is provided on the lower clamping arm corresponding to the position of the support portion, the two ends of the support portion are provided with rotating shafts that rotatably cooperate with the rubber seat, the pushing portion is provided on the side of the support portion near the terminal, the pressing portion is provided on the side of the support portion away from the terminal, and a flat portion is provided between the pressing portion and the support portion.

[0010] The beneficial effects of this utility model are as follows: through the double locking structure formed by the front cover and the rear cover, the front cover can be tightly engaged with the rubber seat through the locking components on both sides, which can firmly press the front end of the FPC, while the rear cover clamps the FPC by pushing the terminal and realizes electrical connection. This effectively avoids the problem of poor contact caused by the loosening of a single lock, significantly improves the vibration resistance and connection reliability of the connector, and ensures the continuity and stability of signal transmission. Attached Figure Description

[0011] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0012] Figure 1 This is a structural schematic diagram of an anti-vibration FPC connector with double locking according to the present invention.

[0013] Figure 2 This is another structural schematic diagram of an anti-vibration FPC connector with double locking according to the present invention.

[0014] Figure 3 This is a cross-sectional view of an anti-vibration FPC connector with double locking according to the present invention.

[0015] Figure 4 This is a schematic diagram of the structure of an anti-vibration FPC connector base with double locking according to the present invention.

[0016] Figure 5 This is a schematic diagram of the structure of the rear cover of an anti-vibration FPC connector with double locking, according to the present invention.

[0017] Figure 6 This is a schematic diagram of the front cover of an anti-vibration FPC connector with double locking mechanism according to this utility model.

[0018] Figure 7 for Figure 4 A partial schematic diagram of point A in the middle.

[0019] The labels in the diagram represent: 1. Rubber base; 2. Rear pressure cover; 3. Terminal; 4. Slot; 5. Limiting groove; 6. Pushing part; 7. Pressing part; 8. Front pressure cover; 9. Locking assembly; 10. Boss; 11. Locking pin; 12. Cross arm; 13. Step; 14. Locking groove; 15. Clearance groove; 16. Upper clamping arm; 17. Lower clamping arm; 18. Connecting arm; 19. Contact point; 20. Welding foot; 21. Fixing arm; 22. Limiting protrusion; 23. Support part; 24. Groove; 25. Rotating shaft; 26. Flat part. Detailed Implementation

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] See Figures 1 to 7As shown, the structure of this utility model is as follows: a vibration-resistant FPC connector with double locking, including a rubber base 1, a rear pressure cover 2 disposed on the rubber base 1, and terminals 3. The rubber base 1 has a slot 4 for inserting the FPC and a limiting groove 5 for installing the terminals 3. The rear pressure cover 2 is rotatably connected to the rubber base 1 and has a pushing part 6 for pushing the terminals 3 and a pressing part 7 for operation. One end of the terminal 3 extends into the slot 4, and the other end is correspondingly disposed with the pushing part 6 of the rear pressure cover 2. The rubber base 1 is located in the slot 4. The device includes a front cover 8 with locking components 9 on both sides that engage with the base 1 to lock the FPC in place. Specifically, the base 1 has slots 4 for inserting the FPC, and limiting grooves 5 for fixing terminals 3. The rear cover 2 is rotatably connected to the base 1 and can be activated by a pressing part 7 to push the terminal 3, thus clamping the FPC. The terminal 3 is used to connect the FPC to an external circuit. The front cover 8 and locking components 9 are used to press the front end of the FPC, forming a double lock with the rear cover 2. When the FPC is inserted into the slot 4 of the base 1, the front cover 8 locks with the base 1 via the locking components 9, pressing the front end of the FPC into the slot 4. Simultaneously, operating the pressing part 7 of the rear cover 2 rotates it, and the pushing part 6 pushes the terminal 3, clamping the FPC in place. This double fixing significantly improves the stability and vibration resistance of the FPC connection.

[0024] like Figure 6 , Figure 7 As shown, the locking assembly 9 includes protrusions 10 on both sides of the front cover 8. A latch 11 is movably mounted on each protrusion 10. The two latches 11 are connected by a cross arm 12. A step 13 is provided on the rubber seat 1 corresponding to the protrusions 10. A groove 14 is provided on the step 13 to engage with the latch 11. Specifically, the latch 11 engages with the groove 14 on the step 13 of the rubber seat 1 to lock the front cover 8. The cross arm 12 connects the two latches 11 to ensure synchronous operation. When the front cover 8 is closed to press the FPC, the cross arm 12 is pushed to move the two latches 11 synchronously towards the groove 14, causing the latches 11 to engage with the groove 14 on the step 13, thus locking the front cover 8 to the rubber seat 1. When it is necessary to open the front cover 8, the operation is reversed to disengage the latches 11 from the groove 14, releasing the locking state.

[0025] like Figure 2 , Figure 6 As shown, the front cover 8 has a relief groove 15 corresponding to the limiting groove 5. Specifically, the main function of the relief groove 15 is to accommodate the terminal 3 extending into the slot 4, providing structural space for the front cover 8 to press the FPC, while ensuring that the terminal 3 can move freely without being obstructed by the front cover 8 during the clamping process of the FPC. In addition, it can also guide the terminal 3 to prevent it from shifting its position during the clamping action.

[0026] like Figure 3As shown, terminal 3 includes an upper clamping arm 16 and a lower clamping arm 17. The upper clamping arm 16 and the lower clamping arm 17 are connected in the middle by a connecting arm 18. One end of the upper clamping arm 16 and the lower clamping arm 17 extends into the slot 4 and is provided with a contact 19. The other end extends to the corresponding position of the pushing part 6 of the rear cover 2. A soldering foot 20 is connected to the lower clamping arm 17. Specifically, the upper clamping arm 16 and the lower clamping arm 17 form an elastic clamping body through the connecting arm 18. The contact 19 is used to contact the FPC conductive layer to achieve electrical connection, and the soldering foot 20 is used to connect to the external circuit. Both the connecting arm 18 and the upper clamping arm 16 are elastic, so that under the pushing action of the rear cover 2, the contact 19 of the upper clamping arm 16 cooperates with the contact 19 of the lower clamping arm 17 to clamp the FPC conductive layer. The electrical signal is conducted to the soldering foot 20 through the contact 19, the clamping arm, and the connecting arm 18 to achieve circuit conduction.

[0027] like Figure 3 As shown, the lower clamping arm 17 is provided with a fixed arm 21, and the fixed arm 21 is provided with a limiting protrusion 22. Specifically, when the terminal 3 is installed in the limiting groove 5, the fixed arm 21 is placed into the groove along with the terminal 3, and the limiting protrusion 22 engages with the inner wall of the limiting groove 5 to form a mechanical limit, preventing the terminal 3 from shifting or falling out of the limiting groove 5 under conditions such as vibration and insertion / removal of FPC, thus ensuring the stability of the installation position of the terminal 3.

[0028] like Figure 3 , Figure 5 As shown, the rear cover 2 includes a support part 23. The lower clamping arm 17 has a groove 24 corresponding to the position of the support part 23. The support part 23 has a rotating shaft 25 at both ends that rotates with the rubber seat 1. The pushing part 6 is located on the side of the support part 23 near the terminal 3, and the pressing part 7 is located on the side of the support part 23 away from the terminal 3. A flat part 26 is provided between the pressing part 7 and the support part 23. Specifically, when the pressing part 7 is pressed, the rear cover 2 rotates around the rotating shaft 25 as the fulcrum. The support part 23 drives the pushing part 6 to move towards the tail of the upper clamping arm 16. The pushing part 6 pushes against the tail of the upper clamping arm 16 to clamp the contact extending into the slot and clamp the FPC. At the same time, the flat part 26 rotates with the support part 23 and finally engages with the corresponding position of the lower clamping arm 17 to lock and maintain the clamping state.

[0029] In practical use, when connecting the FPC, first insert the FPC into the slot 4 on the base 1, so that the part of the FPC to be connected corresponds to the end of the terminal 3 extending into the slot 4. The limiting groove 5 of the base 1 fixes the terminal 3 to ensure its stable position. Then, cover the front end of the FPC in the slot 4 with the front end cover 8. The locking components 9 on both sides of the front end cover 8 cooperate with the base 1 to lock it, so that the front end cover 8 presses the front end of the FPC tightly in the slot 4. Next, using the rotatable connection between the rear end cover 2 and the base 1, press the pressing part 7 of the rear end cover 2 to make it rotate, drive the pushing part 6 to move closer to the terminal 3 and push the terminal 3, so that the end of the terminal 3 extending into the slot 4 clamps the FPC, realizing electrical connection and fixing the rear end of the FPC at the same time. Finally, the front end cover 8 and the rear end cover 2 cooperate to form a double lock, realizing double fixation from both ends of the FPC, significantly improving the stability and vibration resistance of the connection.

[0030] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A vibration-resistant FPC connector with double locking mechanism, characterized in that: The device includes a base (1), a rear pressure cover (2) disposed on the base (1), and a terminal (3). The base (1) has a slot (4) for inserting an FPC and a limiting groove (5) for installing the terminal (3). The rear pressure cover (2) is rotatably connected to the base (1) and has a pushing part (6) for pushing the terminal (3) and a pressing part (7) for operation. One end of the terminal (3) extends into the slot (4), and the other end is correspondingly disposed with the pushing part (6) of the rear pressure cover (2). The base (1) has a front pressure cover (8) disposed in the slot (4), and the front pressure cover (8) has locking components (9) on both sides that cooperate with the base (1) to lock.

2. The anti-vibration FPC connector with double locking as described in claim 1, characterized in that: The locking assembly (9) includes protrusions (10) on both sides of the front pressure cover (8), and a latch (11) is movably provided on the protrusion (10). The two latches (11) are connected by a cross arm (12). The rubber seat (1) is provided with a step (13) corresponding to the protrusion (10), and a slot (14) that cooperates with the latch (11) is provided on the step (13).

3. The connector according to claim 1, characterized in that: The front cover (8) is provided with an avoidance groove (15) corresponding to the limiting groove (5).

4. The anti-vibration FPC connector with double locking as described in claim 1, characterized in that: The terminal (3) includes an upper clamping arm (16) and a lower clamping arm (17). The upper clamping arm (16) and the lower clamping arm (17) are connected in the middle by a connecting arm (18). One end of the upper clamping arm (16) and the lower clamping arm (17) extends into the slot (4) and is provided with a contact point (19). The other end extends to the corresponding position of the push part (6) of the rear pressure cover (2). The lower clamping arm (17) is connected with a welding foot (20).

5. The anti-vibration FPC connector with double locking as described in claim 4, characterized in that: The lower clamping arm (17) is provided with a fixing arm (21), and the fixing arm (21) is provided with a limiting protrusion (22).

6. The anti-vibration FPC connector with double locking as described in claim 5, characterized in that: The rear pressure cap (2) includes a support part (23). The lower clamping arm (17) is provided with a groove (24) corresponding to the position of the support part (23). The support part (23) is provided with a rotating shaft (25) at both ends that rotates with the rubber seat (1). The pushing part (6) is provided on the side of the support part (23) close to the terminal (3). The pressing part (7) is provided on the side of the support part (23) away from the terminal (3). A flat part (26) is provided between the pressing part (7) and the support part (23).

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