Cable locking structure of an electrical connector

Abstract

The present invention discloses a cable lock structure of an electrical connector, comprising a wire terminal, one end of the wire terminal comprising two contact arms arranged at a relatively interval, and the other end comprising two side walls arranged at a relatively interval, the lower edges of the two side walls being vertically provided with a wiring bottom wall, the two side walls and the wiring bottom wall forming a U-shaped cavity for placing cable conductors, the wiring bottom wall being bent at one end close to the contact arm and provided with an elastic tongue piece, the side wall being movably connected with a wire pressing buckle, when the wire pressing buckle is pressed downward, one end of the wire pressing buckle is engaged with the elastic tongue piece, and the other end is pressed tightly against the upper surface of the wiring bottom wall. The present invention has the advantages of simple structure, excellent reliability, and high cost efficiency, and is particularly suitable for power connectors containing plastic insulating shells.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to a cable locking structure of an electrical connector. Background Art

[0002] As the main port for power supply of equipment, with the development of technology and the diverse needs of equipment usage scenarios, the power cables of the power IO interfaces of more and more equipment are now required to meet the requirements of direct construction site wiring. The existing wire locking method usually adopts the screw locking method. It is often the case that the screw head slips and the locking torque does not meet the standard due to the inappropriate screwdriver bit used in on-site construction. In some cases, the screws are not tightened, resulting in the cable not being locked, which makes the cable connection unqualified but difficult to detect. In view of the above existing deficiencies, the present invention proposes a wire locking structure of an electrical connector. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a cable locking structure of an electrical connector, which has the characteristics of simple structure and excellent reliability and is suitable for a power connector with a plastic insulating shell.

[0004] A cable locking structure of an electrical connector comprises a wire terminal, one end of the wire terminal comprises two contact arms arranged relatively at intervals, and the other end comprises two side walls arranged relatively at intervals, a wiring bottom wall is vertically arranged at the lower edges of the two side walls, the two side walls and the wiring bottom wall form a U-shaped cavity for placing cable conductors, an elastic tongue is bent at one end of the wiring bottom wall close to the contact arm, a wire pressing buckle is movably connected to the side wall, and when the wire pressing buckle is pressed downward, one end of the wire pressing buckle is engaged with the elastic tongue and the other end is pressed tightly against the upper surface of the wiring bottom wall.

[0005] Preferably, the elastic tongue includes an elastic wall, one end of which is fixedly connected to the arc arm and the other end is fixedly connected to the baffle, and the two side walls of the baffle extend toward the two side walls respectively so that the baffle is wider than the elastic wall to form a hanging platform, and a tool groove is horizontally arranged on a side of the baffle away from the contact arm.

[0006] Preferably, the wire pressing buckle comprises a top wall, one end of the top wall is bent to be provided with a wire pressing elastic wall, the other end is bent to be provided with a hanging platform elastic wall, and installation walls are vertically provided on both sides of the top wall.

[0007] Preferably, bent hooks are vertically provided on both sides of the lower end of the elastic wall of the hanging platform, and the bent hooks match the hanging platform.

[0008] Preferably, each of the two side walls is provided with a mounting hole, and each of the two mounting walls is provided with a mounting wall hole. When the two mounting walls of the wire pressing buckle are engaged with the outer sides of the two side walls, the mounting hole and the mounting wall hole match to accommodate the insertion of the pin shaft.

[0009] Preferably, each of the two side walls is provided with a limiting groove, and each of the two mounting walls is provided with a limiting buckle, and the limiting groove and the limiting buckle match each other.

[0010] Preferably, a reinforcing rib is provided on the upper surface of the wiring bottom wall away from one end of the elastic tongue piece, and an observation window is provided on each of the two side walls.

[0011] Preferably, blocking platforms are symmetrically provided at the top of one end of the two side walls close to the contact arm, and the two blocking platforms limit the tilting angle of the elastic tongue piece toward the contact arm.

[0012] Preferably, the upper surface of the top wall of the wire pressing buckle is fixedly connected to the push block base, and the push block is horizontally slidably connected inside the push block base. When the push block moves toward the direction of the elastic tongue piece, the wire pressing buckle is disengaged from the elastic tongue piece.

[0013] Preferably, the inner side wall of the push block base is symmetrically provided with slide grooves, and the side wall of the push block is symmetrically provided with slide rails, and the slide grooves match the slide rails.

[0014] Beneficial effects of the present invention:

[0015] The present invention proposes a cable wire locking structure of an electrical connector, which should include a wire terminal, a wire crimping buckle and a pin shaft. The wire terminal is both the current conductor of the present invention and the fixing frame of the structure of the present invention. One end of the wire terminal is designed as an electrical contact structure to form a contact area for electrical plug-in, and the other end is designed as a U-shaped cavity for connecting the cable conductor. An elastic tongue is designed in the U-shaped cavity. The wire terminal and the wire crimping buckle are assembled together using a pin shaft, and the wire crimping buckle can rotate around the pin shaft. When the wire crimping buckle is pressed, the bent hook on the wire crimping buckle and the hanging platform on the elastic tongue engage with each other to achieve locking of the cable.

[0016] The present invention proposes a cable lock structure of an electrical connector, which can unlock the wire clamp by directly pushing open the elastic tongue on the wire terminal with the help of a simple tool or by adding a simple auxiliary structure to trigger the elastic tongue. The wire clamp is opened and closed by rotating the pin shaft to lock and loosen the cable. The present invention has the advantages of simple structure, excellent reliability and high cost efficiency, and is particularly suitable for power connectors with plastic insulating shells.

[0017] The cable locking structure of the electrical connector proposed in the present invention can complete the locking action by only pressing, and the operation is simple; if the pressing operation is missed, the wire pressing jaw of the product will automatically rise, which is convenient for inspection and better meets the operator's requirements for improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is an overall schematic diagram of the locking structure of the wire terminal and the cable conductor of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the wire terminal of the present invention;

[0021] Figure 3 is a cross-sectional view of a wire terminal of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the wire pressing buckle;

[0023] Figure 5 This is the A-direction view of the wire pressing buckle;

[0024] Figure 6 It is a schematic diagram of the structure of the pin shaft;

[0025] Figure 7 It is a schematic diagram of the installation of the locking structure of the wire terminal and the cable conductor of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the second embodiment;

[0027] Fig. 9 It is a structural schematic diagram of the push block base;

[0028] Fig.10 It is a schematic diagram of the structure of the push block.

[0029] In the figure: 1-wire terminal, 11-wiring bottom wall, 111-reinforcement rib A, 12-side wall A, 121-observation window A, 122-mounting hole A, 123-limiting groove A, 124-blocking platform A, 13-side wall B, 131-observation window B, 132-mounting hole B, 133-limiting groove B, 134-blocking platform B, 14-elastic tongue, 141-baffle, 142-elastic wall, 143-arc arm, 144-tool slot, 145-hanging platform, 15-contact arm A, 16-contact arm B, 17-U Cavity, 2-wire pressing buckle, 21-top wall, 211-reinforcement rib B, 22-mounting wall A, 221-mounting wall hole A, 222-limiting buckle A, 23-mounting wall B, 231-mounting wall hole B, 232-limiting buckle B, 24-wire pressing elastic wall, 25-hanging table elastic wall, 26-bending hook, 3-pin shaft, 31-axis body, 32-step, 33-riveting end face, 4-cable conductor, 5-unlocking tool, 6-push block base, 61-slide groove, 7-push block, 71-head, 72-slide rail. DETAILED DESCRIPTION

[0030] The present invention will be further explained below in conjunction with specific embodiments.

[0031] Reference Figure 1-7 A cable lock structure of an electrical connector includes a wire terminal 1, one end of the wire terminal 1 includes two contact arms A15 and B16 that are relatively spaced apart, and the other end includes two side walls A12 and B13 that are relatively spaced apart. A wiring bottom wall 11 is vertically provided at the lower edges of the side walls A12 and B13. The side walls A12, B13 and the wiring bottom wall 11 form a U-shaped cavity 17 for placing a cable conductor 4. An elastic tongue piece 14 is bent at one end of the wiring bottom wall 11 close to the contact arms A15 and B16. A wire pressing buckle 2 is movably connected to the side walls A12 and B13. When the wire pressing buckle 2 is pressed downward, one end of the wire pressing buckle 2 is engaged with the elastic tongue piece 14, and the other end is tightly pressed against the upper surface of the wiring bottom wall 11. A reinforcing rib A111 is provided on the upper surface of the wiring bottom wall 11 away from the elastic tongue piece 14. The reinforcing rib A111 can increase the friction between the cable conductor 4 and the wiring bottom wall 11.

[0032] 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. The two side walls of the baffle 141 extend toward the side wall A12 and the side wall B13 respectively, so that the baffle 141 is wider than the elastic wall 142, thereby forming a hanging platform 145. The elastic wall 142 is made of a high-conductivity copper material. A tool groove 144 is horizontally arranged on one side of the baffle 141 away from the contact arm A15 and the contact arm B16.

[0033] The wire pressing buckle 2 includes a top wall 21, on which a reinforcing rib B211 is provided, one end of the top wall 21 is bent downward to be provided with a wire pressing elastic wall 24, and the other end is bent downward to be provided with a hanging platform elastic wall 25, and both sides of the top wall 21 are vertically provided with a mounting wall A22 and a mounting wall B23. Both sides of the lower end of the hanging platform elastic wall 25 are vertically provided with a bent hook 26, and the bent hook 26 matches the hanging platform 145. The wire pressing elastic wall 24 and the hanging platform elastic wall 25 are both made of stainless steel.

[0034] 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, and the mounting wall B23 is provided with a mounting wall hole B231. When the mounting wall A22 and the mounting wall B23 of the wire pressing buckle 2 are engaged with 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 to accommodate the insertion of the pin shaft 3. The shaft bodies (31) of the pin shaft (3) are inserted into the above-mentioned mounting holes one by one, and the step (32) is limited and then the riveting plane (33) is pressed in the reverse direction to complete the assembly of the wire locking structure.

[0035] The side wall A12 is provided with a limiting groove A123, the side wall B13 is provided with a limiting groove B133, the installation wall A22 is provided with a limiting buckle A222, the installation wall B23 is provided with a limiting buckle B232, the limiting groove A123 matches the limiting buckle A222, and the limiting groove B133 matches the limiting buckle B232.

[0036] 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 to observe the installation status of the cable conductor 4 in the U-shaped cavity 17 .

[0037] A blocking platform A124 is provided at the top of one end of the side wall A12 close to the contact arm A15, and a blocking platform B134 is provided at the top of one end of the side wall B13 close to the contact arm B16. The blocking platforms A124 and B134 are arranged opposite to each other to limit the inclination angle of the elastic tongue 14 toward the contact arm A15 and the contact arm B16.

[0038] Working principle:

[0039] like Figure 7As shown, the wire terminal 1 is both a current conductor of the present invention and a fixed support structure of the structure of the present invention, the wire pressing buckle 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 pressing buckle 2 are assembled using a pin shaft 3, wherein the mounting wall A22 and the mounting wall B23 in the wire pressing buckle 2 are installed on the outer sides of the side wall A12 and the side wall B13 of the conductive terminal 1, wherein the limiting buckle A22 on the mounting wall A22 is inserted into the limiting groove A123 on the side wall A12, and the limiting buckle B232 on the mounting wall B23 is inserted into the limiting groove B133 on the side wall B13;

[0040] After the cable conductor 4 is inserted into the U-shaped cavity 17 along the E direction, the wire pressing buckle 2 is rotated clockwise around the pin shaft 3, and the lower end surface of the wire pressing spring arm 24 will press the cable conductor 4, and as the wire pressing buckle 2 rotates clockwise, the wire pressing spring arm 24 will gradually increase the force of pressing the wire as it deforms. When the hanging base elastic arm 25 on the wire pressing buckle 2 rotates to contact the elastic tongue hanging base 14, the bent hook 26 on the hanging base elastic arm 25 contacts the baffle 141 in the elastic tongue 14; when the wire pressing buckle 2 continues to rotate clockwise, it will force the hanging base elastic arm 25 to produce elastic displacement until the bent hook 26 and the hanging base 145 in the elastic tongue 14 are buckled and fixed to each other, completing the wire locking function of this wire locking structure.

[0041] When you need to unlock this structure, such as Figure 1 As shown, a common screwdriver 5 can be used to insert into the tool slot 144 and push the elastic tongue 14 in the direction of the contact arm A15 and the contact arm B16. The elastic tongue 14 will move forward to the position of the blocking platform A124 and the blocking platform B125, so that the bent hook 26 in the wire pressing buckle 2 is disengaged from the hanging platform 145 on the elastic tongue 14. At this time, the wire pressing buckle 2 can be rotated counterclockwise around the pin shaft 3 to open, and the wire pressing spring arm 24 in the wire pressing buckle 2 is lifted and away from the wiring bottom wall 11 of the conductive terminal 1, thereby realizing the removal of the cable conductor 4.

[0042] Example 2

[0043] according to Figure 8-10 In this example, the following unlocking method can be adopted: the upper surface of the top wall 21 of the wire pressing buckle 2 is fixedly connected to the push block base 6, the push block base 6 is horizontally slidably connected to the push block 7, the inner side wall of the push block base 6 is symmetrically provided with a slide groove 61, the side wall of the push block 7 is symmetrically provided with a slide rail 71, and the slide groove 61 matches the slide rail 71. The end of the push block 7 facing the elastic tongue 14 is provided with a push head 71 extending downward.

[0044] The push block 7 is made of insulating plastic injection molding. When it needs to be unlocked, the push block 7 is moved toward the elastic tongue 14 with a finger, so that the top head 71 on the push block 7 contacts the baffle 141 on the elastic tongue 14, and the push block 7 is continued to be pushed. The elastic tongue 14 will move to the position of the blocking platform A124 and the blocking platform B125, so that the bent hook 26 in the wire pressing buckle 2 is disengaged from the hanging platform 145 on the elastic tongue 14. At this time, the wire pressing buckle 2 can be rotated counterclockwise around the pin shaft 3 to open, and the wire pressing spring arm 24 in the wire pressing buckle 2 is lifted and away from the wiring bottom wall 11 of the conductive terminal 1, thereby realizing the removal of the cable conductor 4.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable lock structure of an electrical connector, comprising a wire terminal (1), wherein one end of the wire terminal (1) comprises two contact arms (15, 16) disposed relatively and spaced apart, and the other end comprises two side walls (12, 13) disposed relatively and spaced apart, characterized in that: A wiring bottom wall (11) is vertically provided at the lower edges of the two side walls (12, 13); the two side walls (12, 13) and the wiring bottom wall (11) form a U-shaped cavity (17) for placing a cable conductor (4); an elastic tongue piece (14) is bent at one end of the wiring bottom wall (11) close to the contact arm (15, 16); a wire pressing buckle (2) is movably connected to the side walls (12, 13); when the wire pressing buckle (2) is pressed downward, one end of the wire pressing buckle (2) is engaged with the elastic tongue piece (14) and the other end is pressed tightly against the upper surface of the wiring bottom wall (11).

2. The cable locking structure of an electrical connector according to claim 1, characterized in that: The elastic tongue (14) comprises 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 the two side walls of the baffle (141) respectively extend toward the two side walls (12, 13) so that the baffle (141) is wider than the elastic wall (142) to form a hanging platform (145), and a tool groove (144) is horizontally arranged on a side of the baffle (141) away from the contact arm (15, 16).

3. The cable locking structure of an electrical connector according to claim 2, characterized in that: The wire pressing buckle (2) comprises a top wall (21), one end of the top wall (21) is bent to be provided with a wire pressing elastic wall (24), and the other end is bent to be provided with a hanging platform elastic wall (25), and installation walls (22, 23) are vertically provided on both sides of the top wall (21).

4. The cable locking structure of an electrical connector according to claim 3, characterized in that: Bending hooks (26) are vertically arranged on both sides of the lower end of the hanging platform elastic wall (25), and the bending hooks (26) match the hanging platform (145).

5. The cable locking structure of an electrical connector according to claim 3, characterized in that: The two side walls (12, 13) are each provided with a mounting hole (122, 132), and the two mounting walls (22, 23) are each provided with a mounting wall hole (221, 231); when the two mounting walls (22, 23) of the wire pressing buckle (2) are engaged with the outer sides of the two side walls (12, 13), the mounting holes (122, 132) and the mounting wall holes (221, 231) are matched to accommodate the insertion of the pin shaft (3).

6. The cable locking structure of an electrical connector according to claim 3, characterized in that: The two side walls (12, 13) are each provided with a limiting groove (123, 133), and the two mounting walls (22, 23) are each provided with a limiting buckle (222, 232), and the limiting groove (123, 133) and the limiting buckle (222, 232) match each other.

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

8. A cable locking structure for an electrical connector according to any one of claims 1 to 6, characterized in that: Stopping platforms (124, 134) are symmetrically provided at the top of one end of the two side walls (12, 13) close to the contact arms (15, 16), and the two stopping platforms (124, 134) limit the tilting angle of the elastic tongue (14) in the direction of the contact arms (15, 16).

9. A cable locking structure for an electrical connector according to any one of claims 1 to 6, characterized in that: The upper surface of the top wall (21) of the wire pressing buckle (2) is fixedly connected to the push block base (6), and the push block base (6) is horizontally slidably connected to the push block (7). When the push block (7) moves in the direction of the elastic tongue piece (14), the wire pressing buckle (2) is separated from the elastic tongue piece (14).

10. The cable locking structure of an electrical connector according to claim 9, characterized in that: The inner side wall of the push block base (6) is symmetrically provided with a slide groove (61), and the side wall of the push block (7) is symmetrically provided with a slide rail (72), and the slide groove (61) matches the slide rail (72).

Images