Butt joint structure of FPC connector

Abstract

The utility model discloses a butt joint structure of an FPC connector, which comprises a connector shell, positioning plates are fixed on two sides of the inner part of the connector shell, and guide chutes are arranged on one sides, close to each other, of the two positioning plates; the FPC flat cable connector comprises a connector shell, a guiding sliding groove is formed in the connector shell, a butt joint port is formed in the inner wall of the butt joint port, a closed groove is formed in the top of the connector shell, and limiting blocks are arranged at the two ends of the closed groove. On the one hand, the FPC flat cable plug can be accurately aligned and plugged with the butt joint port, on the other hand, limiting blocking structures can be formed on the two sides of the front face of the FPC flat cable plug through the limiting rods, the situation that the FPC flat cable plug is loosened or falls off after being in butt joint with the butt joint port can be avoided, the firmness of the FPC flat cable plug after being in butt joint with the connector can be guaranteed, and the connector is convenient to use. And normal operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC connectors, in particular to a docking structure of an FPC connector. Background Art

[0002] FPC connectors are used to connect printed circuit boards (PCBs) and flexible printed circuit boards (FPCs) to achieve mechanical and electrical connections.

[0003] my country's published patent application number CN202222106660.0 mentions an FPC connector with an anti-pull structure, which states: "The FPC connector is intended to solve the problem that the traditional FPC connector and the flat connecting wire are generally connected by a snap-on connection. During the use of the FPC connector, if the flat connecting wire encounters a pulling force, it will cause the flat connecting wire to loosen or even fall off, affecting the normal use function of the equipment, and may even cause unstable contact at the connection position of the equipment, causing damage to the FPC connector and increasing the cost of repairing or replacing the FPC connector."

[0004] The utility model retrieved above realizes the reinforcement of the flat connecting wire and solves the technical problem. However, we found that this method still has certain defects during the specific simulation use:

[0005] First, when inserting the flat connecting wire, it is difficult to determine whether the flat connecting wire is accurately aligned with the connecting port or fully connected due to the obstruction of the device housing, resulting in inconvenient connection.

[0006] Second, when clamping and reinforcing the flat connecting wire, the multiple components are driven by twisting the rotating head and the two pressure plates are driven closer to each other. This method has the problem that the operation is more troublesome and it is inconvenient to hold and rotate due to the small size of the rotating head.

[0007] Therefore, in response to the technical defects of the existing technology, we have designed an FPC connector that is more convenient to operate and has better connection security. Utility Model Content

[0008] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0009] To achieve the above-mentioned object, the utility model provides the following technical solution: a docking structure of an FPC connector, comprising a connector housing and an electrical terminal arranged at the back of the connector housing, positioning plates being fixed on both sides of the interior of the connector housing, and a guide slot being provided on one side where the two positioning plates are close to each other; a docking interface being provided inside the connector housing, a docking port being provided on the inner wall of the docking interface, a closed groove being provided on the top of the connector housing, limit blocks being provided at both ends of the closed groove, an unlocking rod which can be placed in the closed groove being rotatably connected between the tops of the two limit blocks, a limit rod being fixed at the bottom of the limit block and penetrating into the interior of the docking interface, and the bottom of the limit rod being inserted into the inner bottom wall of the docking interface; a telescopic slot being provided in the inner cavity of the connector housing and at the positions on both sides of each limit rod, a tension spring being fixed on the inner wall of the telescopic slot, a connecting buckle being fixed at one end of the tension spring, a traction rope being connected to the connecting buckle, and one end of the traction rope passing through the telescopic slot and being fixed to the limit rod.

[0010] As a further solution of the present invention: the telescopic slot and the closed slot are connected through a through hole, and the traction rope is placed in the through hole.

[0011] As a further solution of the present invention: two fixing plates are fixed to the bottoms of both ends of the unlocking rod, and the top of the limiting block is placed between the two fixing plates and connected by a rotating rod.

[0012] As a further solution of the present invention: rubber sheets are fixed on both sides of the inner wall of the middle part of the closed groove, and a gap is provided between the two rubber sheets.

[0013] As a further solution of the present invention: a fixing cylinder is fixed on the back side of the inner wall of the docking port and at positions on the left and right sides of the docking port, a return spring is fixed in the fixing cylinder, one end of the return spring is fixed with a telescopic rod passing through the fixing cylinder, and one end of the telescopic rod is fixed with a rubber push plate.

[0014] As a further solution of the utility model: it also includes an FPC cable plug, both sides of which slide into the docking port from the guide groove and are plugged into the docking port. When the FPC cable plug is plugged into the docking port, two limit rods are placed on both sides of the front of the FPC cable plug, and two rubber push plates are placed on both sides of the back of the FPC cable plug.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present application, through the designed guide slot, unlocking lever, limiting lever, tension spring and pulling rope and other structures, on the one hand, can use the guide slot to guide the entry position of the FPC cable plug, so that the FPC cable plug can be accurately aligned with the docking port for insertion, and on the other hand, can use the limiting lever to form a limiting blocking structure on both sides of the front of the FPC cable plug, which can prevent the FPC cable plug from loosening or falling off after docking with the docking port, and can ensure the firmness of the FPC cable plug and the connector after docking, ensuring the normal operation of the device. In addition, the designed fixing cylinder, return spring, telescopic rod and rubber push plate can form a pushing structure on both sides of the back of the FPC cable plug, on the one hand, which can push the FPC cable plug outward to cooperate with the limiting blocking of the limiting lever to enhance the secure connection of the FPC cable plug, and on the other hand, when the FPC cable plug is subsequently pulled out, the rebound of the return spring can be used to quickly separate the FPC cable plug from the docking port, thereby facilitating the removal of the FPC cable plug and avoiding the potential damage caused by pulling the cable on the FPC cable plug to pull out the FPC cable plug.

[0017] 2. This application uses a pulling and automatic rebound method to limit the FPC cable plug. This operation method is simpler and more convenient, and can speed up the docking or subsequent removal of the FPC cable plug, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the connector housing of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the connector housing of the utility model;

[0020] Figure 3 This utility model Figure 2 A in the figure shows the enlarged structural diagram;

[0021] Figure 4 This is a top-view cross-sectional structural diagram of the FPC cable plug of the utility model being inserted into the connector housing;

[0022] Figure 5 It is a side sectional structural diagram of the connector housing of the utility model.

[0023] The reference numerals and names in the figures are as follows:

[0024] 1. Connector housing; 2. Positioning plate; 3. Guide groove; 4. Docking port; 5. Power terminal; 6. Closing slot; 7. Unlocking lever; 701, fixing plate; 8. Rubber sheet; 9. Docking port; 10. Limiting rod; 11. Limiting block; 12. Telescopic slot; 13. Tension spring; 14. Connecting buckle; 15. Pull rope; 16. Through hole; 17. Rubber push plate; 18. Fixing cylinder; 19. Reset spring; 20. Telescopic rod; 21. FPC cable plug. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 , an FPC connector docking structure, including a connector housing 1 and a power terminal 5 arranged on the back of the connector housing 1, positioning plates 2 are fixed on both sides of the interior of the connector housing 1, and a guide slot 3 is provided on the side where the two positioning plates 2 are close to each other, and the FPC cable plug 21 can enter the interior of the docking interface 4 along the guide slot 3 on the positioning plate 2, and the guide slot 3 is used to limit the movement direction of the FPC cable plug 21 to ensure that the FPC cable plug 21 slides smoothly and directional; a docking interface 4 is provided inside the connector housing 1, and a docking port 9 is provided on the inner wall of the docking interface 4, a closing groove 6 is provided on the top of the connector housing 1, and a limiting block 11 is provided at both ends of the closing groove 6, and an unlocking rod 7 that can be placed in the closing groove 6 is rotatably connected between the tops of the two limiting blocks 11, and the bottom of the limiting block 11 is rotatably connected to the unlocking rod 7 that can be placed in the closing groove 6. A limiting rod 10 is fixed to the bottom of the docking interface 4, and the bottom of the limiting rod 10 is inserted into the inner bottom wall of the docking interface 4. The bottom of the limiting rod 10 is inserted into the inner bottom wall of the docking interface 4, which can play a bottom limiting effect on the limiting rod 10. A rubber sleeve is provided on the outside of the limiting rod 10 to avoid damage to the FPC cable plug 21; a telescopic groove 12 is provided in the inner cavity of the connector housing 1 and at the positions on both sides of each limiting rod 10, and a tension spring 13 is fixed on the inner wall of the telescopic groove 12, and a connecting buckle 14 is fixed to one end of the tension spring 13, and a traction rope 15 is connected to the connecting buckle 14, and one end of the traction rope 15 passes through the telescopic groove 12 and is fixed to the limiting rod 10, and the connecting buckle 14 can slide in the telescopic groove 12 to pull the tension spring 13 to stretch, and the traction rope 15 can drive the connecting buckle 14 to move.

[0027] In this embodiment, the telescopic slot 12 and the closed slot 6 are connected via a through hole 16 , and the traction rope 15 is placed in the through hole 16 .

[0028] Specifically, the through hole 16 is used to facilitate the passage of the traction rope 15 and to leave enough space for the traction rope 15 to move.

[0029] In this embodiment, two fixing plates 701 are fixed at the bottom of both ends of the unlocking rod 7, and the top of the limit block 11 is placed between the two fixing plates 701 and connected by a rotating rod; rubber plates 8 are fixed on both sides of the inner wall in the middle of the closed groove 6, and a gap is set between the two rubber plates 8.

[0030] Specifically, when the unlocking rod 7 is not needed, it can be placed in the closing groove 6 by rotating on the limit block 11. Since two rubber sheets 8 are provided on the closing groove 6, the rubber sheets 8 can be used to limit the unlocking rod 7 in the closing groove 6, thereby preventing the unlocking rod 7 from falling out.

[0031] In this embodiment, a fixing cylinder 18 is fixed to the back of the inner wall of the docking port 4 and at the positions on the left and right sides of the docking port 9. A return spring 19 is fixed in the fixing cylinder 18. One end of the return spring 19 is fixed to a telescopic rod 20 that passes through the fixing cylinder 18. One end of the telescopic rod 20 is fixed to a rubber push plate 17; see Figure 4 , also includes an FPC cable plug 21, both sides of the FPC cable plug 21 slide from the guide groove 3 into the docking port 4 and are plugged into the docking port 9. When the FPC cable plug 21 is plugged into the docking port 9, two limit rods 10 are placed on both sides of the front of the FPC cable plug 21, and two rubber push plates 17 are placed on both sides of the back of the FPC cable plug 21.

[0032] Specifically, by setting up the above-mentioned structure, the restoring effect of the restoring spring 19 can be effectively utilized to cause the rubber push plate 17 to push the FPC cable plug 21 outward. Since the FPC cable plug 21 is blocked by the limiting rod 10, the FPC cable plug 21 can be firmly fixed between the limiting rod 10 and the rubber push plate 17, so that the FPC cable plug 21 can have better stability and firmness after docking with the docking port 9. The rubber push plate 17 is relatively soft in texture, which can avoid damage to the FPC cable plug 21.

[0033] When inserting the FPC cable plug 21 into the docking port 4:

[0034] The staff first places the two sides of the FPC cable plug 21 in the two guide slots 3, and pushes the FPC cable plug 21 toward the inner side of the docking port 4, so that the FPC cable plug 21 slides in the two guide slots 3 and enters the interior of the docking port 4. Then the staff can pull up the unlocking rod 7, and use the unlocking rod 7 to pull the two limit rods 10 to lift. When the limit rod 10 is lifted, the two traction ropes 15 connected to it are simultaneously driven to pass through the through hole 16, and the sliding of the connecting buckle 14 in the telescopic groove 12 drives the tension spring 13 to stretch. Finally, the action of pulling the unlocking rod 7 causes the limit rod 10 to make room for the FPC cable plug 21 to enter. When the FPC cable plug 21 continues to enter, the back of the FPC cable plug 21 can be used to squeeze the rubber push plate 17, forcing the rubber push plate 17 to squeeze the telescopic rod 20 into the fixed cylinder 18 The inside of the connector 21 is pressed and the return spring 19 is compressed. At this time, the FPC cable plug 21 can be smoothly docked with the docking port 9. When the back of the FPC cable plug 21 reaches the end of the guide slot 3, the FPC cable plug 21 can no longer be pushed. The FPC cable plug 21 is completely docked with the docking port 9. At this time, the staff can release the tensile force on the unlocking lever 7. The unlocking lever 7 is reset by the tension spring 13 and the traction rope 15 is used to pull the limiting rod 10 to re-enter the docking port 4 and insert it into the inner bottom wall of the docking port 4. At this time, the docking of the FPC cable plug 21 with the connector is completed. The rubber push plate 17 can be used to push the FPC cable plug 21, and the limiting rod 10 can be used to block the FPC cable plug 21, so that the FPC cable plug 21 is more firmly docked in the docking port 4 of the connector.

[0035] When the FPC cable plug 21 needs to be removed from the connector, the staff only needs to pull the unlocking rod 7. When the unlocking rod 7 pulls the limit rod 10 to rise to the top of the FPC cable plug 21, the FPC cable plug 21 is not blocked by the limit rod 10. At this time, the restoring effect of the reset spring 19 pushes the telescopic rod 20 out of the fixed cylinder 18 and pushes the rubber push plate 17 to move. Finally, the pushing effect of the rubber push plate 17 is used to push the FPC cable plug 21 out of the docking port 9. When the FPC cable plug 21 is detached from the docking port 9, the staff can easily pull out the FPC cable plug 21 from the docking interface 4 to complete the disassembly of the FPC cable plug 21.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A docking structure of an FPC connector, comprising a connector housing (1) and a power terminal (5) arranged on the back of the connector housing (1), characterized in that: Positioning plates (2) are fixed on both sides of the interior of the connector housing (1), and a guide groove (3) is provided on one side of the two positioning plates (2) close to each other; A docking port (4) is provided inside the connector housing (1), and a docking port (9) is provided on the inner wall of the docking port (4); a closing groove (6) is provided on the top of the connector housing (1), and limit blocks (11) are provided at both ends of the closing groove (6); an unlocking rod (7) that can be inserted into the closing groove (6) is rotatably connected between the tops of the two limit blocks (11); a limit rod (10) that penetrates into the interior of the docking port (4) is fixed to the bottom of the limit block (11), and the bottom of the limit rod (10) is plugged into the inner bottom wall of the docking port (4); Telescopic grooves (12) are provided in the inner cavity of the connector housing (1) and at positions on both sides of each limiting rod (10); a tension spring (13) is fixed to the inner wall of the telescopic groove (12); a connecting buckle (14) is fixed to one end of the tension spring (13); a traction rope (15) is connected to the connecting buckle (14); and one end of the traction rope (15) passes through the telescopic groove (12) and is fixed to the limiting rod (10).

2. The docking structure of an FPC connector according to claim 1, characterized in that: The telescopic slot (12) and the closed slot (6) are connected via a through hole (16), and the traction rope (15) is placed in the through hole (16).

3. The docking structure of an FPC connector according to claim 1, characterized in that: Two fixing plates (701) are fixed to the bottom of both ends of the unlocking rod (7), and the top of the limiting block (11) is placed between the two fixing plates (701) and connected via a rotating rod.

4. The docking structure of an FPC connector according to claim 1, characterized in that: Rubber sheets (8) are fixed on both sides of the inner wall of the middle part of the closed groove (6), and a gap is provided between the two rubber sheets (8).

5. The docking structure of an FPC connector according to claim 1, characterized in that: A fixing cylinder (18) is fixed to the back of the inner wall of the docking port (4) and at positions on the left and right sides of the docking port (9), a return spring (19) is fixed in the fixing cylinder (18), a telescopic rod (20) passing through the fixing cylinder (18) is fixed to one end of the return spring (19), and a rubber push plate (17) is fixed to one end of the telescopic rod (20).

6. The docking structure of an FPC connector according to claim 1, characterized in that: It also includes an FPC cable plug (21), both sides of which slide from the guide slots (3) into the docking port (4) and are plugged into the docking port (9). When the FPC cable plug (21) is plugged into the docking port (9), two limit rods (10) are placed on both sides of the front of the FPC cable plug (21), and two rubber push plates (17) are placed on both sides of the back of the FPC cable plug (21).

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