Self-locking FPC connector

Abstract

A self-locking FPC connector disclosed by the present invention comprises a terminal body, a flat cable piece, a fixed connecting piece, a base and an upper cover, the two sides of the base are symmetrically provided with rotary connecting columns, a side plate is fixedly provided with rotary connecting grooves corresponding to the rotary connecting columns, and the upper cover can freely turn over along the rotary connecting columns. Sliding connecting grooves are further fixedly formed in the ends, away from the rotary connecting columns, of the two sides of the base, sliding connecting pieces are fixedly arranged on the inner walls of the two sides of the side plates, the sliding connecting pieces are in sliding clamping connection with the sliding connecting grooves, a terminal connecting groove is fixedly formed in the center of the base, and a plurality of terminal bodies penetrate through one end of the base to be arranged in the terminal connecting groove; one end of the flat cable piece is inserted between the base and the upper cover, the other end of the flat cable piece extends out of the base and is used for being connected with a circuit board, one end of the flat cable piece is inserted between the base and the upper cover and is tightly attached to the terminal body, and a fixed connecting piece is further fixedly arranged on the base. The wire arrangement piece can be prevented from falling off.

Description

Technical Field

[0001] The invention relates to the field of automated machinery, and in particular to a self-locking FPC connector. Background Art

[0002] Plug-in cable---conventional FPC connectors require the iron shell to be opened and the cable to be inserted, and then the iron shell is buckled down so that the iron shell exerts a downward force on the cable to contact the terminal spring clip. The existing connector structure is prone to causing the upper cover to pop up or the cable to be pulled out when the cable is subjected to external force, affecting the stability of the connection. For this reason, a connector that can achieve self-locking is needed. Summary of the invention

[0003] The main purpose of the present invention is to provide a self-locking FPC connector.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A self-locking FPC connector includes a terminal body, a wiring member, a fixed connection member, a base and an upper cover. Rotating connection columns are symmetrically arranged on both sides of the base. Side plates are fixedly provided on both sides of the upper cover. Rotating connection grooves corresponding to the rotating connection columns are fixedly provided on the side plates. The upper cover is slidably mounted on the outer ring surface of the rotating connection seat through the rotating connection grooves, and the upper cover can be freely flipped along the rotating connection columns. Sliding connection grooves are also fixedly provided on one end of the two sides of the base away from the rotating connection columns. Sliding connection members are fixedly provided on the inner walls of the two sides of the side plates. The sliding connection members are slidably engaged with the sliding connection grooves. A terminal connection groove is fixedly opened at the center, and a plurality of terminal bodies are arranged in the terminal connection groove through one end of the base, and the other end extends out of the base for connecting to the circuit board. One end of the wiring component is inserted between the base and the upper cover and fits tightly with the terminal body. A fixed connecting piece is also fixed on the base, and a self-locking component is also fixed on the upper cover. The self-locking component includes a first elastic arm and a second elastic arm, and the first elastic arm and the second elastic arm are both arranged on the upper end surface of the upper cover. There are two first elastic arms and the second elastic arm is arranged on both sides. The first elastic arm and the second elastic arm both extend between the upper cover and the base.

[0005] Furthermore, a connecting groove for accommodating the insertion of the wiring arrangement component is formed on the base, and a plurality of third elastic arms are fixedly provided on a side wall of the connecting groove.

[0006] Furthermore, a limiting groove is formed by stamping in a direction away from the base on a side of the upper end surface of the upper cover close to the second elastic arm.

[0007] Furthermore, a plurality of fourth elastic arms are provided on the second elastic arm, and the ends of the fourth elastic arms extend into the limiting groove and are tightly slidably fitted with the top surface of the limiting groove.

[0008] Furthermore, the sliding connection groove is L-shaped, and the length of the rotating connection groove is much larger than the diameter of the rotating connection column. After the sliding connection piece is inserted into the L-shaped sliding connection groove, the position of the upper cover can be adjusted forward and backward to achieve flip locking or opening of the upper cover.

[0009] Furthermore, the rotation and locking direction of the upper cover is a direction of pushing toward the cable arrangement member insertion opening.

[0010] Furthermore, first grooves corresponding to the first elastic arms are fixedly provided on both sides of the cable arrangement member, and a second groove corresponding to the second elastic arm is fixedly provided on the upper end surface of the cable arrangement member.

[0011] Furthermore, the upper cover and the side plate are an integrated structure, the side plate is formed by bending the upper cover, and the upper cover is made of elastic metal material.

[0012] Furthermore, the first elastic arm and the second elastic arm are an integrated structure with the upper cover, the first elastic arm and the second elastic arm are formed by cutting and bending the upper cover, and the fourth elastic arm is formed by cutting and bending the second elastic arm, and the cross-sectional surface of the fourth elastic arm and the second elastic arm is a herringbone shape.

[0013] Furthermore, a method for using a self-locking FPC connector is provided, wherein the self-locking FPC connector according to any one of claims 1 to 9 is used for quick connection between a cable and a terminal, and the specific steps include: S1, after the upper cover is snapped onto the base, the upper cover is flipped over so that the sliding connection piece is slidably snapped into the sliding connection groove, and the upper cover is pushed in the opposite direction of the cable arrangement piece connection port so that the upper cover is flipped over and locked; S2, insert the cable arrangement member into the connecting groove between the upper cover and the base until the first elastic arm and the second elastic arm are clamped into the first groove and the second groove of the cable arrangement member, and the cable arrangement member is locked by the first elastic arm and the second elastic arm. At the same time, the second elastic arm presses the cable arrangement member toward the terminal to prevent poor contact; S3, after the first elastic arm and the second elastic arm are locked with the cable arrangement component, the third elastic arm will squeeze the cable arrangement component in the direction of pulling out so that the first elastic arm and the second elastic arm can further lock the cable arrangement component; S4, when the cable arrangement component is forced to be pulled out, the fourth elastic arm is clamped in the limiting groove, which can prevent the second elastic arm from deforming, and the second elastic arm is further made to provide a better locking effect.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses the first elastic arm and the second elastic arm to prevent the cable from being pulled out, thereby achieving the effect of locking the cable. At the same time, the second elastic arm can press the cable to improve the tightness of the connection between the cable and the terminal. The fourth elastic arm further improves the stability of the second elastic arm. At the same time, the third elastic arm pushes the cable outward, and cooperates with the second elastic arm and the first elastic arm to further lock the cable. At the same time, the third elastic arm cooperates with the second elastic arm and the flipping and opening direction of the upper cover to achieve the effect that the cable is locked tighter the more it is pulled outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of the base of the present invention; Figure 3 It is the front view of the upper cover of the present invention; Figure 4 It is a three-dimensional partial cross-sectional enlarged view of the upper cover of the present invention; Figure 5 It is a three-dimensional diagram of the cable arrangement component of the present invention. Description of reference numerals:

[0016] 1. Terminal body; 2. Wiring member; 3. Fixed connector; 4. Base; 5. Upper cover; 41. Rotating connection column; 51. Side panel; 52. Rotating connection slot; 42. Sliding connection slot; 53. Sliding connector; 43. Terminal connection slot; 541. First elastic arm; 542. Second elastic arm; 44. Third elastic arm; 55. Limiting groove; 5421. Fourth elastic arm; 21. First groove; 22. Second groove. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] See also Figure 1-Figure 5As shown, a self-locking FPC connector includes a terminal body 1, a wiring member 2, a fixed connection member 3, a base 4 and an upper cover 5. Rotating connection columns 41 are symmetrically arranged on both sides of the base 4. Side plates 51 are fixedly provided on both sides of the upper cover 5. Rotating connection grooves 52 corresponding to the rotating connection columns 41 are fixedly provided on the side plates 51. The upper cover 5 is slidably mounted on the outer ring surface of the rotating connection seat through the rotating connection grooves 52, and the upper cover 5 can be freely flipped along the rotating connection columns 41. Sliding connection grooves 42 are also fixedly provided on one end of the two sides of the base 4 away from the rotating connection columns 41. Sliding connection members 53 are fixedly provided on the inner walls of the two sides of the side plates 51. The sliding connection members 53 are slidably engaged with the sliding connection grooves 42. A terminal connection groove 43 is fixedly opened at the center, and a plurality of terminal bodies 1 pass through one end of the base 4 and are arranged in the terminal connection groove 43, and the other end extends out of the base 4 for connecting to the circuit board. One end of the wiring component 2 is inserted between the base 4 and the upper cover 5 and fits tightly with the terminal body 1. A fixed connecting member 3 is also fixed on the base 4, and a self-locking component is also fixed on the upper cover 5. The self-locking component includes a first elastic arm 541 and a second elastic arm 542. The first elastic arm 541 and the second elastic arm 542 are both arranged on the upper end surface of the upper cover 5. There are two first elastic arms 541 and the second elastic arm 542 are arranged on both sides. The first elastic arm 541 and the second elastic arm 542 both extend between the upper cover 5 and the base 4.

[0019] The base 4 is provided with a connection groove for accommodating the insertion of the wiring arrangement member 2 , and a plurality of third elastic arms 44 are fixedly provided on a side wall of the connection groove.

[0020] A limiting groove 55 formed by stamping in a direction away from the base 4 is further provided on a side of the upper end surface of the upper cover 5 close to the second elastic arm 542 .

[0021] A plurality of fourth elastic arms 5421 are disposed on the second elastic arm 542 . The ends of the fourth elastic arms 5421 extend into the limiting groove 55 and are tightly slidably fitted with the top surface of the limiting groove 55 .

[0022] The sliding connection groove 42 is L-shaped, and the length of the rotating connection groove 52 is much larger than the diameter of the rotating connection column 41. After the sliding connection member 53 is clamped into the L-shaped sliding connection groove 42, the position of the upper cover 5 can be adjusted forward and backward to achieve the flip locking or opening of the upper cover 5.

[0023] The rotation and locking direction of the upper cover 5 is the direction of pushing the cable arrangement member 2 toward the insertion opening.

[0024] The first grooves 21 corresponding to the first elastic arms 541 are fixedly provided on both sides of the cable arrangement member 2 , and the second grooves 22 corresponding to the second elastic arms 542 are fixedly provided on the upper end surface of the cable arrangement member 2 .

[0025] The upper cover 5 and the side plate 51 are an integrated structure. The side plate 51 is formed by bending the upper cover 5. The upper cover 5 is made of elastic metal material.

[0026] The first elastic arm 541 and the second elastic arm 542 are an integrated structure with the upper cover 5, the first elastic arm 541 and the second elastic arm 542 are formed by cutting and bending the upper cover 5, and the fourth elastic arm 5421 is formed by cutting and bending the second elastic arm 542, and the cross-section of the fourth elastic arm 5421 and the second elastic arm 542 is a herringbone shape.

[0027] The specific steps include: After the upper cover 5 is mounted on the base 4, the upper cover 5 is turned over so that the sliding connection member 53 is slidably mounted in the sliding connection groove 42, and the upper cover 5 is pushed in the opposite direction of the connection port of the cable arrangement member 2 to turn the upper cover 5 over and lock it; Insert the cable arranging member 2 into the connection groove between the upper cover 5 and the base 4 until the first elastic arm 541 and the second elastic arm 542 are clamped into the first groove 21 and the second groove 22 of the cable arranging member 2. The first elastic arm 541 and the second elastic arm 542 lock the cable arranging member 2. At the same time, the second elastic arm 542 presses the cable arranging member 2 toward the terminal to prevent poor contact. After the first elastic arm 541 and the second elastic arm 542 are locked with the cable arrangement component 2, the third elastic arm 44 will press the cable arrangement component 2 in the direction of pulling out so that the first elastic arm 541 and the second elastic arm 542 can further lock the cable arrangement component 2; When the cable arrangement member 2 is subjected to force, since the upper cover 5 is in a locked state, the cable arrangement member 2 will not cause the upper cover 5 to flip up, so it can only be pulled out. However, when it is pulled out, the first elastic arm 541 and the second elastic arm 542 will limit the displacement of the cable. When the force is too large, the fourth elastic arm 5421 is clamped in the limiting groove 55 to prevent the second elastic arm 542 from deforming. The second elastic arm 542 is further made to provide a better locking effect. At the same time, due to the limitation of the flipping and opening direction of the upper cover 5, the more the cable is pulled out, the more it will be put into a flipping and locking state through the second elastic arm 542 and the first elastic arm 541. When it is necessary to open and flip, it is only necessary to push the upper cover 5, and the cable will squeeze the third elastic arm 44 forward to deform the third elastic arm 44 to obtain moving space. The upper cover 5 is pushed to unlock, and the flipping and unlocking of the upper cover 5 can be completed. After flipping the upper cover 5, the cable can be taken out.

[0028] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A self-locking FPC connector, comprising a terminal body (1), a wiring member (2), a fixed connection member (3), a base (4) and an upper cover (5), wherein the base (4) is symmetrically provided with a rotating connection column (41) on both sides, and the upper cover (5) is fixedly provided with a side plate (51) on both sides, and a rotating connection groove (52) corresponding to the rotating connection column (41) is fixedly provided on the side plate (51), and the upper cover (5) is slidably clamped on the outer ring surface of the rotating connection seat through the rotating connection groove (52), and the upper cover (5) can be freely turned over along the rotating connection column (41), and the two sides of the base (4) are away from the end of the rotating connection column (41). A sliding connection groove (42) is fixedly provided, and sliding connection pieces (53) are fixedly provided on the inner walls of both sides of the side plate (51). The sliding connection pieces (53) are slidably engaged with the sliding connection groove (42). A terminal connection groove (43) is fixedly provided at the center of the base (4). A plurality of terminal bodies (1) pass through the base (4) and are arranged in the terminal connection groove (43) at one end, and extend out of the base (4) at the other end for connection with the circuit board. One end of the wiring arrangement piece (2) is inserted between the base (4) and the upper cover (5) and is tightly fitted with the terminal body (1). A fixed connection piece (3) is also fixedly provided on the base (4), and is characterized in that: A self-locking assembly is also fixedly provided on the upper cover (5), and the self-locking assembly comprises a first elastic arm (541) and a second elastic arm (542), the first elastic arm (541) and the second elastic arm (542) are both arranged on the upper end surface of the upper cover (5), there are two first elastic arms (541) and the second elastic arm (542) is arranged on both sides, and the first elastic arm (541) and the second elastic arm (542) both extend between the upper cover (5) and the base (4).

2. A self-locking FPC connector according to claim 1, characterized in that: The base (4) is provided with a connection groove for accommodating the insertion of the wiring arrangement member (2), and a plurality of third elastic arms (44) are fixedly provided on a side wall of the connection groove.

3. The self-locking FPC connector according to claim 1, characterized in that: A limiting groove (55) is also provided on the side of the upper end surface of the upper cover (5) close to the second elastic arm (542) and is stamped and formed in a direction away from the base (4).

4. A self-locking FPC connector according to claim 3, characterized in that: A plurality of fourth elastic arms (5421) are provided on the second elastic arm (542), and the ends of the fourth elastic arms (5421) extend into the limiting groove (55) and are tightly slidably fitted with the top surface of the limiting groove (55).

5. The self-locking FPC connector according to claim 1, characterized in that: The sliding connection groove (42) is L-shaped, and the length of the rotating connection groove (52) is much larger than the diameter of the rotating connection column (41). After the sliding connection member (53) is clamped into the L-shaped sliding connection groove (42), the position of the upper cover (5) can be adjusted forward and backward to realize the flipping, locking or opening of the upper cover (5).

6. The self-locking FPC connector according to claim 5, characterized in that: The rotational locking direction of the upper cover (5) is the direction of pushing toward the insertion opening of the cable arrangement member (2).

7. The self-locking FPC connector according to claim 1, characterized in that: First grooves (21) corresponding to the first elastic arms (541) are fixedly provided on both sides of the cable arrangement member (2), and second grooves (22) corresponding to the second elastic arms (542) are fixedly provided on the upper end surface of the cable arrangement member.

8. The self-locking FPC connector according to claim 1, characterized in that: The upper cover (5) and the side plate (51) are an integrated structure, and the side plate (51) is formed by bending the upper cover (5). The upper cover (5) is made of elastic metal material.

9. The self-locking FPC connector according to claim 1, characterized in that: The first elastic arm (541) and the second elastic arm (542) are an integrated structure with the upper cover (5); the first elastic arm (541) and the second elastic arm (542) are formed by cutting and bending the upper cover (5); and the fourth elastic arm (5421) is formed by cutting and bending the second elastic arm (542); and the cross-section of the fourth elastic arm (5421) and the second elastic arm (542) is a herringbone shape.

10. A method for using a self-locking FPC connector, characterized in that: The self-locking FPC connector according to any one of claims 1 to 9 is used for quick connection between a cable and a terminal, and the specific steps include: S1, after the upper cover (5) is snap-fitted onto the base (4), the upper cover (5) is flipped over so that the sliding connection member (53) is slidably snap-fitted into the sliding connection groove (42), and the upper cover (5) is pushed in the opposite direction to the connection port of the cable arrangement member (2) so that the upper cover (5) is flipped over and locked; S2, insert the cable arrangement component (2) into the connection groove between the upper cover (5) and the base (4) until the first elastic arm (541) and the second elastic arm (542) are snapped into the first groove (21) and the second groove (22) of the cable arrangement component (2), and the first elastic arm (541) and the second elastic arm (542) are used to lock the cable arrangement component (2), while the second elastic arm (542) presses the cable arrangement component (2) toward the terminal to prevent poor contact; S3, after the first elastic arm (541) and the second elastic arm (542) are locked with the cable arrangement component (2), the third elastic arm (44) will squeeze the cable arrangement component (2) in the direction of pulling out so that the first elastic arm (541) and the second elastic arm (542) further lock the cable arrangement component (2); S4, when the cable arrangement component (2) is subjected to force and is to be pulled out, the fourth elastic arm (5421) is clamped in the limiting groove (55), which can prevent the second elastic arm (542) from deforming, and the second elastic arm (542) is further made to provide a better locking effect.

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