Self-locking FPC connector

Abstract

The utility model discloses a self -locking type FPC connector belongs to connector technical field, the utility model discloses a FPC connector including cable clamp and connecting seat, the connecting seat both ends symmetry fixed have the clamping groove, the cable clamp is fixed respectively in the both ends corresponding the clamping groove has the buckle, the buckle can embed the clamping groove in to limit, and when embedding, keep the pin and twisted pair line abut, the both sides symmetry fixed same pressure mechanism of FPC connector, every pressure mechanism includes limit seat, U type rod and connecting piece, the limit seat with connecting seat bolt fixed, and recess limit slot in the top, the connecting piece is fixed in the cable clamp side, and it can drive U type rod movable embedding to limit slot in, through the articulated articulated block and drive U type rod and limit slot clamping, realize the secondary locking to connector, guarantee pin long -term stable and cable contact.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically, it relates to a self-locking FPC connector. Background Technology

[0002] FPC connectors are electronic components specifically designed to connect flexible printed circuit boards to printed circuit boards or other electronic components.

[0003] For existing FPC connectors, the locking mechanism is generally a snap-fit ​​type. This snap-fit ​​structure inserts the FPC cable into the bottom of the connector slot, ensuring the gold fingers face the contact terminals. Once the snap-fit ​​is engaged, it firmly presses the FPC's gold fingers onto the connector's contact terminals, forming a stable and reliable electrical connection.

[0004] However, the single-clamp connection method is prone to problems such as loosening of the clamp and poor contact between the pins and the cable when connecting multi-core cables. These problems are more obvious, especially in the long-term operation of electrical appliances. To solve these problems, we propose a self-locking FPC connector. Utility Model Content

[0005] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a self-locking FPC connector.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: A self-locking FPC connector includes a cable clamp and a connector base. The cable clamp has multiple parallel rows of slots on one side to secure an external twisted-pair cable. The connector base has multiple pinholes, each with a pin fixed inside. Each pin corresponds to a slot, and the pins are exposed on the connector base to contact the external twisted-pair cable. The connector base has symmetrically fixed slots at both ends. The cable clamp has latches fixed at both ends corresponding to the slots. These latches can be inserted into the slots for positioning and to maintain contact between the pins and the twisted-pair cable during insertion. The FPC connector has identical clamping mechanisms symmetrically fixed on both sides. Each clamping mechanism includes a limiting seat, a U-shaped rod, and a connector. The limiting seat is bolted to the connector base and has a recessed limiting groove at its top. The connector is fixed to the side of the cable clamp and can move the U-shaped rod into the limiting groove.

[0007] Furthermore, the connector includes a base plate, a hinge seat, a hinge block, a tension spring, and a connecting post. The base plate is bolted to the side of the cable clamp. The hinge seat is fixedly connected to the base plate. One end of the hinge block is hinged to the top of the hinge seat, and the other end extends and is fixedly attached to an integral pull platform. The connecting post is inserted and fixed inside the pull platform, with both ends exposed. The U-shaped rod is fixedly connected to both ends of the connecting post. The bottom of the pull platform is connected to the base via the tension spring.

[0008] Furthermore, the connecting column has a keyway on the exposed shaft section of the pull table, and the two ends of the U-shaped rod opening are fixed to the keyway with bolts.

[0009] Furthermore, the limiting groove is V-shaped, and the size of the corresponding groove opening is consistent with the diameter of the U-shaped rod. When the U-shaped rod is embedded in the limiting groove, the tension spring is in a relaxed state.

[0010] Furthermore, a first hook is fixed to the bottom of the base plate, a second hook is fixed to the bottom of the pull platform, and the tension spring is inclined, with its two ends respectively connected and fixed to the first hook and the second hook.

[0011] Furthermore, a handle is fixed to the top of the pull table.

[0012] Furthermore, guide grooves corresponding to the buckle are respectively opened on both sides of the connector, and the buckle is exposed outside the cable clamp and inserted into the guide groove.

[0013] Furthermore, the slot is formed by a top platform and a bottom platform, both of which are fixedly connected to the side of the connecting seat. The thickness of the top platform is greater than the thickness of the bottom platform. The side of the bottom platform opposite to the top platform is a smooth arc surface. A square card hole is provided at the top of the buckle. The length of the card hole is the same as the length of the bottom platform. The thickness of the buckle does not exceed the thickness of the top platform.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a hinged hinge block to drive a U-shaped rod to engage with a limiting groove, achieving secondary locking of the connector. The connector itself is stably and reliably engaged by symmetrical buckles and slots on the outside. The connection process between the buckles and slots is actually achieved by the buckles deforming along the arc surface under external pressure to embed the buckle hole into the slot. The secondary locking is limited by a tension spring reset. The structure is simple and improves the stability of the connector during long-term connection while reducing costs, avoiding problems such as poor pin contact and buckle loosening. Attached Figure Description

[0015] Figure 1 This is a front view of the connector of this utility model; Figure 2 This is a side view of the connector of this utility model; Figure 3 This is an isometric structural diagram of the connector of this utility model; Figure 4 This is an isometric structural diagram of the connector of this utility model from another direction; Figure 5 The connector of this utility model Figure 4 A magnified view of a section at point A; Figure 6 This is a schematic diagram of the process of fixing the twisted pair cable to the connector of this utility model.

[0016] In the diagram: 1. Cable clamp; 2. Connector; 3. Cable groove; 4. Pin hole; 5. Pin; 6. Slot; 7. Buckle; 8. Limiting seat; 9. U-shaped rod; 10. Connector; 11. Limiting groove; 12. Base plate; 13. Hinge seat; 14. Hinge block; 15. Tension spring; 16. Connecting column; 17. Pulling table; 18. Keyway; 19. First pull hook; 20. Second pull hook; 21. Handle; 22. Guide groove; 23. Top platform; 24. Base platform; 25. Clip hole. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] like Figures 1-6 As shown, in this embodiment, the self-locking FPC connector includes a cable clamp 1 and a connector base 2. The cable clamp 1 has multiple rows of wire grooves 3 arranged in parallel on one side to fix external twisted pair cables. The connector base 2 has multiple pin holes 4 and a pin 5 is fixed in each pin hole 4. The pin 5 corresponds one-to-one with the wire groove 3. The pin 5 is exposed on the connector base 2 to abut against the external twisted pair cables. The connector base 2 has symmetrically fixed slots 6 at both ends. The cable clamp 1 has buckles 7 fixed at both ends corresponding to the slots 6. The buckles 7 can be inserted into the slots 6 for limiting the position and keeping the pin 5 abutting against the twisted pair cables when inserted.

[0019] The connecting seat 2 is provided with guide grooves 22 on both sides corresponding to the buckle 7. The buckle 7 is exposed outside the cable clamp 1 and inserted into the guide groove 22. The slot 6 is formed by a top platform 23 and a bottom platform 24. The top platform 23 and the bottom platform 24 are fixedly connected to the side of the connecting seat 2. The thickness of the top platform 23 is greater than the thickness of the bottom platform 24. The side of the bottom platform 24 opposite to the top platform 23 is a smooth arc surface. The buckle 7 has a square hole 25 at the top. The length of the hole 25 is the same as the length of the bottom platform 24. The thickness of the buckle 7 does not exceed the thickness of the top platform 23.

[0020] Through the above structure, it can be seen that for the connection of twisted pair cables, the cable is first fixed in the cable groove 3 through the overlay process. Then, the connection process only requires the multiple corresponding pins 5 of the connector 2 to contact the cable connector one by one. In order to prevent loosening during the connection process, the outer symmetrical buckles 7 and the slots 6 are first used to lock the connection, which is stable and reliable. The connection process between the buckle 7 and the slot 6 is actually that after the buckle 7's top hole 25 contacts one end of the smooth arc surface of the base 24, the buckle 7 deforms along the arc surface under external pressure to embed the hole 25 into the slot 6. The height and thickness design of the base 24 and the top 23 can ensure that the buckle 7 is stable and does not fall off after being locked into the slot 6.

[0021] Similarly, refer to Figure 4 As can be seen, the connection between the buckle 7 and the slot 6 is an open structure. When the connector is disconnected, the buckle 7 can be easily pried out of the slot 6 by manually squeezing it outward through the open opening, which is convenient and reliable.

[0022] Considering that there are many cores and a large number of cables, a single snap-fit ​​method is prone to problems such as some cores becoming loose and poor contact during long-term operation of electrical appliances. Therefore, this utility model has a separate clamping mechanism symmetrically set on the outside of the connector to achieve secondary clamping and fixing of the connector seat 2 and cable clamp 1 after snap-fit, so as to prevent loosening.

[0023] For a specific structure, each clamping mechanism includes a limiting seat 8, a U-shaped rod 9, and a connecting member 10. The limiting seat 8 is bolted to the connecting seat 2 and has a limiting groove 11 recessed at the top. The connecting member 10 is fixed to the side of the cable clamp 1 and can drive the U-shaped rod 9 to move and embed into the limiting groove 11.

[0024] In this embodiment, the connector 10 includes a base plate 12, a hinge seat 13, a hinge block 14, a tension spring 15, and a connecting post 16. The base plate 12 is bolted to the side of the cable clamp 1. The hinge seat 13 is fixedly connected to the base plate 12. One end of the hinge block 14 is hinged to the top of the hinge seat 13, and the other end extends and is fixedly attached to an integral pull platform 17. The connecting post 16 is inserted and fixed inside the pull platform 17 and is set with both ends exposed outside the pull platform 17. The U-shaped rod 9 is fixedly connected to both ends of the connecting post 16. The bottom of the pull platform 17 is connected to the base through the tension spring 15.

[0025] Furthermore, the connecting column 16 has a keyway 18 on the exposed shaft section of the pull table 17. The two ends of the opening of the U-shaped rod 9 are bolted to the keyway 18. The limiting groove 11 is V-shaped, and the size of the corresponding groove is the same as the diameter of the U-shaped rod 9. When the U-shaped rod 9 is embedded in the limiting groove 11, the tension spring 15 is in a relaxed state. The bottom of the base plate 12 is fixed with a first hook 19, and the bottom of the pull table 17 is fixed with a second hook 20. The tension spring 15 is inclined, and its two ends are respectively connected and fixed to the first hook 19 and the second hook 20. The top of the pull table 17 is fixed with a handle 21.

[0026] Based on the above structure, for the secondary clamping, the hinged block 14 actually drives the U-shaped rod 9 to engage with the limiting groove 11, combined with... Figures 1-3 As shown, the end of the hinge block 14 away from the limiting seat 8 is connected to the base plate 12 via a tension spring 15. Therefore, along the hinge point with the hinge seat 13, the hinge block 14 can rotate upward at a certain angle. The specific angle is limited by the tension of the tension spring 15. In actual design, the tension spring 15 can be tilted to ensure that the tension of the tension spring 15 does not interfere with the clamping force of the U-shaped rod 9 and the limiting groove 11. Similarly, this secondary clamping should be completed after the partial clamping of the connecting seat 2 and the cable clamp 1 is completed. The operator pulls the handle 21 and rotates it upward to stretch the spring to a certain length, ensuring that the top of the U-shaped rod 9 has sufficient movement distance. Then, the U-shaped rod 9 is clamped into the limiting groove 11. At the same time, the pull table 17 is no longer pulled. Under the spring reset action, the U-shaped rod 9 can be stably limited in the limiting groove 11, realizing the secondary connection between the connecting seat 2 and the cable clamp 1, ensuring that the contact between the multi-core pin 5 and each twisted pair remains stable during long-term operation.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A self-locking FPC connector, comprising a cable clamp and a connector base, wherein the cable clamp has multiple rows of parallel wire grooves on one side to secure an external twisted pair cable, the connector base has multiple pin holes and a pin is fixed in each pin hole, the pins correspond one-to-one with the wire grooves, and the pins are exposed on the connector base to abut against the external twisted pair cable, characterized in that: The connector has symmetrical slots fixed at both ends. The cable clamp has buckles fixed at both ends of the corresponding slots. The buckles can be inserted into the slots for positioning and keep the pins abutting against the twisted pair when inserted. The FPC connector has identical clamping mechanisms fixed symmetrically on both sides. Each clamping mechanism includes a limiting seat, a U-shaped rod, and a connector. The limiting seat is bolted to the connector and has a limiting groove recessed at the top. The connector is fixed to the side of the cable clamp and can drive the U-shaped rod to move and insert into the limiting groove.

2. The self-locking FPC connector according to claim 1, characterized in that, The connector includes a base plate, a hinge seat, a hinge block, a tension spring, and a connecting post. The base plate is bolted to the side of the cable clamp. The hinge seat is fixedly connected to the base plate. One end of the hinge block is hinged to the top of the hinge seat, and the other end extends and is fixedly attached to an integral pull platform. The connecting post is inserted and fixed inside the pull platform, with both ends exposed. The U-shaped rod is fixedly connected to both ends of the connecting post. The bottom of the pull platform is connected to the base via the tension spring.

3. The self-locking FPC connector according to claim 2, characterized in that, The connecting column has a keyway on the exposed shaft section of the pull table, and the two ends of the U-shaped rod opening are fixed to the keyway with bolts.

4. The self-locking FPC connector according to claim 2, characterized in that, The limiting groove is V-shaped, and the size of the corresponding groove opening is the same as the diameter of the U-shaped rod. When the U-shaped rod is embedded in the limiting groove, the tension spring is in a relaxed state.

5. The self-locking FPC connector according to claim 4, characterized in that, A first hook is fixed to the bottom of the base plate, and a second hook is fixed to the bottom of the pull platform. The tension spring is inclined and its two ends are respectively connected and fixed to the first hook and the second hook.

6. The self-locking FPC connector according to claim 5, characterized in that, A handle is fixed to the top of the pull table.

7. The self-locking FPC connector according to claim 1, characterized in that, The connector is provided with guide grooves on both sides corresponding to the buckle, and the buckle is exposed outside the cable clamp and inserted into the guide groove.

8. The self-locking FPC connector according to claim 7, characterized in that, The slot is formed by a top platform and a bottom platform. Both the top platform and the bottom platform are fixedly connected to the side of the connecting seat. The thickness of the top platform is greater than the thickness of the bottom platform. The side of the bottom platform opposite to the top platform is a smooth arc surface. A square card hole is opened at the top of the buckle. The length of the card hole is the same as the length of the bottom platform. The thickness of the buckle does not exceed the thickness of the top platform.

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