CN113270764A

CN113270764A - Cable locking structure of electric connector

Info

Publication number: CN113270764A
Application number: CN202110468406.2A
Authority: CN
Inventors: 魏长权
Original assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Current assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-08-17
Anticipated expiration: 2041-04-28
Also published as: CN113270764B

Abstract

The invention discloses a cable locking structure of an electrical connector, comprising a wire terminal, one end of the wire terminal includes two contact arms arranged at opposite intervals, and the other end includes two side walls arranged at opposite intervals, The lower edges of the two side walls are vertically provided with wiring bottom walls, the two side walls and the wiring bottom walls form a U-shaped cavity for placing cable conductors, and the wiring bottom walls are close to the contact arms An elastic tongue piece is bent at one end of the side wall, and the wire pressing buckle is movably connected to the side wall. When the wire pressing buckle is pressed down, one end of the wire pressing buckle is locked with the elastic tongue piece. The other end is pressed against the upper surface of the bottom wall of the wiring. The present invention has the advantages of simple structure, excellent reliability and high cost efficiency, and is especially suitable for a power connector containing a plastic insulating shell.

Description

Cable locking structure of electric connector

Technical Field

The invention relates to the technical field of electric connectors, in particular to a cable locking structure of an electric connector.

Background

The power connector is used as a main port for supplying power to equipment, along with various requirements of technical development and equipment use scenes, power cables matched with power IO interfaces of more and more equipment are required to meet the wiring requirement of a direct construction site, the conventional wire locking mode generally adopts a screw locking mode, the situation that a screwdriver bit is not suitable for field construction to cause screw pan head slipping and locking torque to be not up to standard is often caused, and the situation that the cable is not locked due to screw missing even in some cases, the cable is connected unqualifiedly but is difficult to detect is caused. The invention provides a wire locking structure of an electric connector aiming at the defects existing in the prior art.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a cable locking structure of an electric connector, which has the characteristics of simple structure and excellent reliability and is suitable for a power connector containing a plastic insulating shell.

The utility model provides an electric connector's cable locking wire structure, includes the wire terminal, a tip of wire terminal includes the contact arm that two relative intervals set up, another tip includes the lateral wall that two relative intervals set up, two the lower limb of lateral wall is equipped with the diapire of working a telephone switchboard perpendicularly, two the lateral wall with the diapire of working a telephone switchboard forms U die cavity body and is used for placing the cable conductor, the diapire of working a telephone switchboard is close to the one end of contact arm is buckled and is equipped with the elastic tongue piece, swing joint line ball buckle on the lateral wall works as when the line ball buckle is pressed down, the one end of line ball buckle with elastic tongue piece block, the other end sticiss the upper surface of diapire of working a telephone switchboard.

Preferably, the elastic tongue piece comprises an elastic wall, one end of the elastic wall is fixedly connected with the arc arm, the other end of the elastic wall is fixedly connected with the baffle plate, two side walls of the baffle plate respectively extend towards the two side walls, so that the baffle plate is wider than the elastic wall to form a hanging table, and a tool groove is horizontally arranged on one side surface of the baffle plate, which is far away from the contact arm.

Preferably, the line ball buckle includes the roof, roof one end is buckled and is equipped with line ball bullet wall, and the other end is buckled and is equipped with a string platform elastic wall, the both sides of roof are equipped with the installation wall perpendicularly.

Preferably, the two sides of the lower end part of the elastic wall of the hanging table are vertically provided with bent hooks, and the bent hooks are matched with the hanging table.

Preferably, two the lateral wall respectively is equipped with a mounting hole, and two the mounting wall respectively is equipped with a mounting wall hole, and when two mounting wall block of line ball buckle are in two the outside of lateral wall, mounting hole and mounting wall hole phase-match are used for holding the pin pivot and penetrate.

Preferably, two the lateral wall respectively is equipped with a spacing groove, two the installation wall respectively is equipped with a spacing buckle, the spacing groove with spacing buckle phase-match.

Preferably, the upper surface of the wiring bottom wall far away from one end of the elastic tongue piece is provided with a reinforcing rib, and the two side walls are respectively provided with an observation window.

Preferably, the top of one end of each of the two side walls, which is close to the contact arm, is symmetrically provided with a stopping table, and the two stopping tables limit the inclination angle of the elastic tongue piece towards the direction of the contact arm.

Preferably, the upper surface of the top wall of the pressing line buckle is fixedly connected with a push block base, the push block base is internally connected with a push block in a horizontal sliding manner, and when the push block moves towards the direction of the elastic tongue piece, the pressing line buckle is separated from the elastic tongue piece.

Preferably, the inside wall symmetry of ejector pad base is equipped with the spout, the lateral wall symmetry of ejector pad is equipped with the slide rail, the spout with the slide rail phase-match.

The invention has the following beneficial effects:

the invention provides a cable locking structure of an electric connector, which comprises a conductor terminal, a wire pressing buckle and a pin rotating shaft. The wire terminal is a current conductor of the invention and also serves as a fixing frame of the structure of the invention, one end part of the wire terminal is designed into an electric contact structure to form an electric splicing contact area, the other end part of the wire terminal is designed into a U-shaped cavity for connecting a cable conductor, an elastic tongue piece is designed in the U-shaped cavity, the wire terminal and the wire pressing buckle are assembled together by adopting a pin rotating shaft, and the wire pressing buckle can rotate around the pin rotating shaft. When pressing the line ball buckle, the couple of bending on the line ball buckle and the platform of hanging on the elastic tongue piece looks block realize the locking to the cable.

The invention provides a cable locking structure of an electric connector, which can directly push open an elastic tongue piece on a wire terminal by means of a simple tool or trigger the elastic tongue piece by adding a simple auxiliary structure to unlock a wire pressing buckle. The line ball buckle is opened and is closed through the rotation of pin pivot, realizes moving back with the pine locking of cable. The invention has the advantages of simple structure, excellent reliability and high cost efficiency, and is particularly suitable for the power connector with the plastic insulating shell.

The cable locking structure of the electric connector can complete the cable locking action only by pressing operation, and is simple to operate; the pressing operation product pressing line bayonet socket is leaked and pressed to be automatically tilted, so that the inspection is facilitated, and the requirement for the lifting efficiency of operating personnel is better met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall schematic view of a locking arrangement of a wire terminal and cable conductor of the present invention;

FIG. 2 is a schematic view of a lead terminal according to the present invention;

fig. 3 is a cross-sectional view of a wire terminal of the present invention;

FIG. 4 is a schematic structural view of the wire clip;

FIG. 5 is a view of the wire clip in the direction A;

FIG. 6 is a schematic structural view of a pin rotating shaft;

FIG. 7 is a schematic view of the locking arrangement installation of the wire terminal and cable conductor of the present invention;

FIG. 8 is a schematic structural view of the second embodiment;

FIG. 9 is a schematic structural view of a push block base;

fig. 10 is a schematic structural view of the push block.

In the figure: 1-wire terminal, 11-wiring bottom wall, 111-reinforcing rib A, 12-side wall A, 121-observation window A, 122-installation hole A, 123-limiting groove A, 124-blocking platform A, 13-side wall B, 131-observation window B, 132-installation hole B, 133-limiting groove B, 134-blocking platform B, 14-elastic tongue piece, 141-baffle plate, 142-elastic wall, 143-arc arm, 144-tool groove, 145-hanging platform, 15-contact arm A, 16-contact arm B, 17-U-shaped cavity, 2-pressing line buckle, 21-top wall, 211-reinforcing rib B, 22-installation wall A, 221-installation wall hole A, 222-limiting buckle A, 23-installation wall B, 231-installation wall hole B, 232-limit buckle B, 24-line pressing elastic wall, 25-hanging table elastic wall, 26-bending hook, 3-pin rotating shaft, 31-shaft body, 32-step, 33-press riveting end face, 4-cable conductor, 5-unlocking tool, 6-push block base, 61-sliding groove, 7-push block, 71-top and 72-sliding rail.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Referring to fig. 1-7, a cable locking structure of an electrical connector includes a conductor terminal 1, one end of the conductor terminal 1 includes two contact arms a15 and B16 arranged at an opposite interval, and the other end includes two side walls a12 and B13 arranged at an opposite interval, a bottom wall 11 is vertically arranged at the lower edges of the side walls a12 and B13, a U-shaped cavity 17 is formed by the side walls a12, B13 and the bottom wall 11 for placing a cable conductor 4, an elastic tongue piece 14 is bent at one end of the bottom wall 11 close to the contact arms a15 and B16, a cable clip 2 is movably connected to the side walls a12 and B13, and when the cable clip 2 is pressed downward, one end of the cable clip 2 is engaged with the elastic tongue piece 14, and the other end of the cable clip is pressed against the upper surface of the bottom wall 11. The upper surface of the end of the bottom wall 11 away from the elastic tongue piece 14 is provided with a rib a111, and the rib a111 can increase the friction force between the cable conductor 4 and the bottom wall 11.

The elastic tongue 14 includes an elastic wall 142, one end of the elastic wall 142 is fixedly connected to the arc arm 143, and the other end is fixedly connected to the baffle 141, and two sidewalls of the baffle 141 respectively extend towards the sidewall a12 and the sidewall B13 so that the baffle 141 is wider than the elastic wall 142 to form a hanging platform 145. The flexible wall 142 is made of a high conductivity copper material. A tool slot 144 is horizontally disposed in side of the baffle 141 remote from contact arm a15 and contact arm B16.

The press line buckle 2 comprises a top wall 21, a reinforcing rib B211 is arranged on the top wall 21, one end of the top wall 21 is downwards bent to be provided with a press line elastic wall 24, the other end of the top wall 21 is downwards bent to be provided with a hanging platform elastic wall 25, and two sides of the top wall 21 are respectively and vertically provided with an installation wall A22 and an installation wall B23. The two sides of the lower end of the hanging platform elastic wall 25 are vertically provided with bending hooks 26, and the bending hooks 26 are matched with the hanging platform 145. The pressing line elastic wall 24 and the hanging platform elastic wall 25 are both made of stainless steel.

The side wall A12 is provided with a mounting hole A122, the side wall B13 is provided with a mounting hole B132, the mounting wall A22 is provided with a mounting wall hole A221, the mounting wall B23 is provided with a mounting wall hole B231, and when the mounting wall A22 and the mounting wall B23 of the pressing line buckle 2 are clamped on the outer sides of the side wall A12 and the side wall B13, the mounting hole A122, the mounting hole B132, the mounting wall hole A221 and the mounting wall hole B231 are matched for accommodating the pin rotating shaft 3 to penetrate. And the shaft bodies (31) of the pin rotating shafts (3) penetrate into the mounting holes one by one, and the steps (32) are limited, and then the planes (33) are riveted in the opposite direction, so that the assembly of the lock wire structure is completed.

The side wall A12 is provided with a limiting groove A123, the side wall B13 is provided with a limiting groove B133, the mounting wall A22 is provided with a limiting buckle A222, the mounting wall B23 is provided with a limiting buckle B232, the limiting groove A123 is matched with the limiting buckle A222, and the limiting groove B133 is matched with the limiting buckle B232.

The side wall a12 is provided with an observation window a121, and the side wall B13 is provided with an observation window B131, which can be used for observing the installation condition of the cable conductor 4 in the U-shaped cavity body 17.

The top of the side wall A12 close to one end of the contact arm A15 is provided with a blocking table A124, the top of the side wall B13 close to one end of the contact arm B16 is provided with a blocking table B134, and the blocking table A124 and the blocking table B134 are oppositely arranged to limit the inclination angle of the elastic tongue piece 14 towards the direction of the contact arm A15 and the contact arm B16.

The working principle is as follows:

as shown in fig. 7, the wire terminal 1 is a current conductor of the present invention and also serves as a fixed support structure of the present invention, the wire clip 2 is installed on the side wall a12 and the side wall B13 of the conductive terminal 1, and the conductive terminal 1 and the wire clip 2 are assembled by using the pin shaft 3, wherein the installation wall a22 and the installation wall B23 in the wire clip 2 are installed at the outer sides of the side wall a12 and the side wall B13 of the conductive terminal 1, wherein the limit clip a22 on the installation wall a22 is clipped into the limit groove a123 on the side wall a12, and the limit clip B232 on the installation wall B23 is clipped into the limit groove B133 on the side wall B13;

after the cable conductor 4 penetrates into the U-shaped cavity body 17 along the E direction, the wire pressing buckle 2 rotates clockwise around the pin rotating shaft 3, the lower end face of the wire pressing elastic arm 24 can press the cable conductor 4, and along with the buckling of the clockwise rotation of the wire pressing buckle 2, the wire pressing elastic arm 24 can gradually increase the wire pressing force along with the deformation, and when the hanging platform elastic arm 25 on the wire pressing buckle 2 rotates to be in contact with the elastic tongue piece hanging platform 14, the bending hook 26 on the hanging platform elastic arm 25 is in contact with the baffle 141 in the elastic tongue piece 14; when the wire pressing buckle 2 continues to rotate clockwise, the elastic arm 25 of the hanging platform is forced to generate elastic displacement until the bent hook 26 and the hanging platform 145 in the elastic tongue piece 14 are mutually buckled and fixed, and the wire locking function of the wire locking structure is completed.

When the structure needs to be unlocked, as shown in fig. 1, a common screwdriver 5 can be inserted into the tool slot 144 to push the elastic tongue piece 14 in the direction of the contact arm a15 and the contact arm B16, the elastic tongue piece 14 will move forward to the positions of the blocking table a124 and the blocking table B125, so that the bent hook 26 in the wire pressing buckle 2 is disengaged from the hanging table 145 on the elastic tongue piece 14, at this time, the wire pressing buckle 2 can rotate counterclockwise around the pin rotating shaft 3 to open, and the wire pressing elastic arm 24 in the wire pressing buckle 2 is lifted to be away from the wiring bottom wall 11 of the conductive terminal 1, i.e., the cable conductor 4 is removed.

Example 2

According to fig. 8-10, the following unlocking method can be adopted in this example: the upper surface of the top wall 21 of the pressing line buckle 2 is fixedly connected with a push block base 6, a push block 7 is movably connected with the inner side wall of the push block base 6 horizontally, a sliding groove 61 is symmetrically arranged on the inner side wall of the push block base 6, a sliding rail 71 is symmetrically arranged on the side wall of the push block 7, and the sliding groove 61 is matched with the sliding rail 71. The end of the push block 7 facing the resilient tongue 14 is provided with a push head 71 extending downwards.

The ejector pad 7 is made of insulating plastic by injection molding, and when the unlocking is needed, when the ejector pad 7 is moved towards the elastic tongue piece 14 by fingers, the ejector head 71 on the ejector pad 7 is in contact with the baffle 141 on the elastic tongue piece 14, the ejector pad 7 is continuously pushed, the elastic tongue piece 14 can be moved to the blocking platform A124 and the blocking platform B125, the bending hook 26 in the wire pressing buckle 2 is released from the hanging platform 145 on the elastic tongue piece 14, at the moment, the wire pressing buckle 2 can be opened by rotating around the pin rotating shaft 3 in the anticlockwise direction, the wire pressing elastic arm 24 in the wire pressing buckle 2 is lifted to be away from the wiring bottom wall 11 of the conductive terminal 1, and the removal of the cable conductor 4 is realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A cable locking structure for an electrical connector, comprising a wire terminal (1), one end of the wire terminal (1) comprises two contact arms (15, 16) arranged at opposite intervals, and the other end comprises Two oppositely spaced side walls (12, 13), characterized in that the lower edges of the two side walls (12, 13) are vertically provided with a wiring bottom wall (11), and the two side walls (12) , 13) and the wiring bottom wall (11) to form a U-shaped cavity (17) for placing the cable conductor (4), and the wiring bottom wall (11) is close to one end of the contact arms (15, 16) An elastic tongue piece (14) is bent and provided, and the wire pressing buckle (2) is movably connected on the side walls (12, 13). When the wire pressing buckle (2) is pressed down, the pressure wire One end of the wire clip (2) is engaged with the elastic tongue piece (14), and the other end is pressed against the upper surface of the wire bottom wall (11).

2 . The cable locking structure of an electrical connector according to claim 1 , wherein the elastic tongue piece ( 14 ) comprises an elastic wall ( 142 ), and one end of the elastic wall ( 142 ) is fixed. 3 . The connecting arc arm (143) and the other end are fixedly connected to the baffle plate (141), the two side walls of the baffle plate (141) are respectively extended to the two side walls (12, 13) so that the baffle plate (141) Wider than the elastic wall (142) to form a hanging platform (145), a tool groove (144) is horizontally arranged on one side of the baffle plate (141) away from the contact arms (15, 16).

3 . The cable locking structure of an electrical connector according to claim 2 , wherein the wire pressing buckle ( 2 ) comprises a top wall ( 21 ), and one end of the top wall ( 21 ) is bent at one end. 4 . A wire-pressing elastic wall (24) is folded, the other end is bent and provided with a hanging platform elastic wall (25), and two sides of the top wall (21) are vertically provided with installation walls (22, 23).

4 . The cable locking structure of an electrical connector according to claim 3 , wherein bending hooks ( 26 ) are vertically arranged on both sides of the lower end of the elastic wall ( 25 ) of the hanging platform. 5 . The bending hook (26) is matched with the hanging table (145).

5. The cable locking structure of an electrical connector according to claim 3, wherein each of the two side walls (12, 13) is provided with a mounting hole (122, 132), and the two side walls (12, 13) The mounting walls (22, 23) are each provided with a mounting wall hole (221, 231), and when the two mounting walls (22, 23) of the wire pressing clip (2) are engaged with the two side walls ( 12, 13), the mounting holes (122, 132) are matched with the mounting wall holes (221, 231) for accommodating the penetration of the pin shaft (3).

6 . The cable locking structure of an electrical connector according to claim 3 , wherein the two side walls ( 12 , 13 ) are each provided with a limiting groove ( 123 , 133 ), and the two side walls ( 12 , 133 ) Each of the installation walls (22, 23) is provided with a limit buckle (222, 232), and the limit groove (123, 133) matches the limit buckle (222, 232).

7. The cable locking structure of an electrical connector according to any one of claims 1-6, characterized in that the bottom wall (11) of the wiring is away from the upper part of one end of the elastic tongue (14) The surface is provided with a reinforcing rib A (111); the two side walls (12, 13) are each provided with an observation window (121, 131).

8. The cable locking structure of an electrical connector according to any one of claims 1-6, wherein the two side walls (12, 13) are close to the contact arms (15, 16) The top of one end of ) is symmetrically provided with blocking platforms (124, 134), and the two blocking platforms (124, 134) limit the inclination angle of the elastic tongue piece (14) to the direction of the contact arms (15, 16).

9. The cable locking structure of an electrical connector according to any one of claims 1-6, characterized in that the upper surface of the top wall (21) of the wire pressing buckle (2) is fixedly connected to the pusher A block base (6), the push block base (6) is horizontally slidably connected to a push block (7), when the push block (7) moves in the direction of the elastic tongue (14), the pressure line The buckle (2) is disengaged from the elastic tongue (14).

10 . The cable locking structure of an electrical connector according to claim 9 , wherein the inner wall of the push block base ( 6 ) is symmetrically provided with a chute ( 61 ), and the push block ( 7) A sliding rail (72) is symmetrically arranged on the side wall, and the sliding groove (61) is matched with the sliding rail (72).