CN220368176U - Cable electric connector - Google Patents

Abstract

The utility model provides a cable electric connector, comprising: the insulation body is provided with a butt joint surface, a mounting surface, a front end wall and a rear end wall, and a plurality of terminal grooves extending along the front-rear direction are formed in the insulation body; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part and a contact arm extending forwards from the base part, and the terminal groove extends forwards to penetrate through the front end wall and forms an opening and a limiting wall positioned above the opening on the front end wall; the contact arm is provided with an arc contact head protruding out of the butt joint surface and a stop tail end positioned at the front end of the arc contact head, and the stop tail end extends into the opening and is abutted to the lower side of the limiting wall. Compared with the prior art, the utility model ensures that the contact arm of the wiring terminal is limited by the limiting wall of the insulating body by improving the matching structure of the insulating body and the wiring terminal, thereby ensuring that the contact head can protrude out of the insulating body more orderly and ensuring the stability of the contact function.

Description

Cable electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to a cable connector.

Background

The cable connector is a very common type of electric connector, and is mainly used for connecting cables, and has a very wide application range. One of the more common types of cable connectors is a Wire To Board (WTB) connector, which is widely used in consumer electronic products such as notebook computers, tablet computers, and mobile phones, and is mainly used for connecting a cable To a circuit Board. A conventional wire-to-board connector generally relates to a board-end connector and a cable-end connector, wherein the board-end connector is fixed on a circuit board, and the cable-end connector is connected to the cable and is used for electrically plugging with the board-end connector, so as to realize electrical connection between the cable and the circuit board. The existing cable end connector or the existing cable connector generally comprises an insulating body, wiring terminals contained in the insulating body and a cable connected with the wiring terminals, wherein one end of each wiring terminal is a wiring terminal and is used for connecting the cable, the other end of each wiring terminal is an elastic contact end and is used for being in butt joint with another electric element, under some application scenes, the elastic contact ends are designed to protrude out of the surface of the insulating body, and the elastic contact ends lack necessary limiting measures, so that the height of the elastic contact ends of all the wiring terminals is inconsistent, and the contact stability and the contact function are influenced; meanwhile, the wiring terminal is usually inserted into the insulating body in a hard interference insertion mode, so that the problem of stress deformation of the wiring terminal is easily caused, and the contact function is affected.

Disclosure of Invention

The utility model provides a cable electric connector, which solves the problem that the contact function is affected due to the poor matching mode of a wiring terminal and an insulating body in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: a cable electrical connector, comprising: the insulation body is provided with a butt joint surface, a mounting surface, a front end wall and a rear end wall, and a plurality of terminal grooves extending along the front-rear direction are formed in the insulation body; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part and a contact arm extending forwards from the base part, and the terminal groove extends forwards to penetrate through the front end wall and forms an opening and a limiting wall positioned above the opening on the front end wall; the contact arm is provided with an arc contact head protruding out of the butt joint surface and a stop tail end positioned at the front end of the arc contact head, and the stop tail end extends into the opening and is abutted to the lower side of the limiting wall.

Further, the terminal groove upwards penetrates through the abutting surface of the insulating body, and a plurality of upper groove holes are formed in the abutting surface; the terminal groove downwards penetrates through the mounting surface of the insulating body, and a plurality of lower slotted holes are formed on the mounting surface, and the lengths of the lower slotted holes in the front-rear direction are smaller than those of the upper slotted holes in the front-rear direction.

Further, the insulating body is also provided with a limiting cantilever extending into the lower slot hole, and the limiting cantilever is positioned right below the terminal slot and is in clamping fit with the wiring terminal; and the lower slotted hole further extends to two sides of the limiting cantilever from front to back.

Further, the insulating body is further provided with a plurality of partition walls between the terminal grooves, oblique blocking walls exposed in the terminal grooves are formed on the two side surfaces of the partition walls, and the oblique blocking walls extend obliquely from top to bottom to block and limit the wire clamping portions of the wiring terminals.

Further, the terminal slot extends rearwardly through the rear end wall and forms a socket in the rear end wall; the rear end of the partition wall is T-shaped and is provided with a pair of guide inclined planes, and the guide inclined planes are arranged adjacent to the insertion opening.

Further, a groove bottom wall is further arranged in the terminal groove, the groove bottom wall protrudes out of the rear end wall, and a groove extending in the front-rear direction is formed in the groove bottom wall; the opening penetrates the mounting surface in the vertical direction.

Further, the base part is in a flat plate shape and is provided with a clamping part protruding towards the mounting surface, and the clamping part protrudes into the lower slotted hole and is in clamping fit with the limiting cantilever in the lower slotted hole.

Further, the wire clamping part is provided with a pair of U-shaped clamping arms, the wiring terminal is further provided with a fixing arm between the base part and the wire clamping part, and the fixing arm is clamped on the partition wall.

Compared with the prior art, the utility model ensures that the contact arm of the wiring terminal is limited by the limiting wall of the insulating body by improving the matching structure of the insulating body and the wiring terminal, thereby ensuring that the contact head can protrude out of the insulating body more orderly and ensuring the stability of the contact function.

Drawings

Fig. 1 is a perspective view of the cable connector of the present utility model with the front side facing upward.

Fig. 2 is a perspective view of the cable connector according to the present utility model with the bottom surface facing upward.

Fig. 3 is an exploded view of the cable connector of the present utility model.

Fig. 4 is a schematic view of a connection terminal of the cable electric connector according to the present utility model.

Fig. 5 is a schematic view illustrating the installation of the connection terminal of the cable electric connector in the insulation body.

Description of the embodiments

Referring to fig. 1 to 5, the present utility model provides a connector 100 for cables, which includes an insulation body 10 and a plurality of terminals 20 accommodated in the insulation body 10, wherein the insulation body 10 and the terminals 20 are clamped and fixed, and one ends of the terminals 20 are used for connecting and fixing a plurality of cables 200.

As shown in fig. 1 and 2, the insulating body 10 includes a pair of abutting surfaces 11, a mounting surface 12, a pair of side wall surfaces 13 interposed between the abutting surfaces 11 and the mounting surface 12, and a front end wall 14 and a rear end wall 15 connecting the pair of side wall surfaces 13. The abutting surface 11 is used for abutting against a abutting element (not shown), preferably, the abutting element is a circuit board (not shown), the abutting surface 11 is parallel to the surface of the circuit board (not shown), the mounting surface 12 is used for mounting and fixing the cable 200, the insulating body 10 is also internally provided with a terminal groove 16 for accommodating the wiring terminal, specifically, the terminal groove 16 penetrates through the abutting surface 11 and the mounting surface 12 in the vertical direction, a plurality of upper slots 110 arranged in a straight line are formed on the abutting surface 11, a plurality of lower slots 120 are formed on the mounting surface 12, a pair of through holes 111 are further formed outside the upper slots 110, the upper slots 110 are used for assembling the wiring terminal 20 into the insulating body 10, the extending length of the lower slots 120 along the front-rear direction is smaller than that of the upper slots 110, preferably, the insulating body 10 is also provided with a limiting cantilever 121 exposed in the lower slots 120, the limiting cantilever 121 is positioned right below the terminal groove 16 and is used for abutting against the lower slots 20, and the limiting cantilever 121 can extend to the limiting cantilever 121 further. A partition wall 17 is disposed between two adjacent terminal slots 16, the partition wall 17 is used for separating each terminal 20, and the rear end of the partition wall 17 is T-shaped and extends along the front-rear direction, preferably, in order to facilitate the insertion of the terminal 20, the rear end of the partition wall 17 is further provided with a guiding inclined surface 171, the guiding inclined surface 171 is disposed adjacent to the insertion opening 151 (described below), preferably, the two side surfaces of the partition wall 17 are formed with inclined blocking walls 172 exposed in the terminal slots 16, the inclined blocking walls 172 are disposed at the rear side of the guiding inclined surface 171 and extend obliquely from top to bottom to block and limit the wire clamping portion 22 (described below) of the terminal 20, so as to prevent the terminal 20 from being inserted excessively backward when being inserted into the terminal slot 16; in addition, a bottom wall of the terminal slot 16 is further provided, and a groove 161 extending in the front-rear direction is formed on the bottom wall of the slot, and the groove 161 can facilitate the passage of the clamping portion 24 of the terminal 20 from back to front. The front end wall 14 and the rear end wall 15 are respectively located at the front end and the rear end of the insulating body 10, wherein the terminal slot 16 extends forward and penetrates through the front end wall 14, a plurality of openings 141 and a limiting wall 142 located above the openings 141 are formed on the front end wall 14, the openings 141 are used for accommodating the stop ends 231 (described below) of the terminal blocks 20, the openings 141 penetrate through the mounting surface 12 in the vertical direction, and the limiting wall 142 is used for limiting the stop ends 231 in the upward direction. The terminal slot 16 extends rearward and through the rear end wall 15, and a plurality of sockets 151 are formed in the rear end wall 15 for inserting the terminal block 20 from the rear toward the front into the terminal slot 16.

Referring to fig. 3 and 4, the connecting terminal 20 is an integral press-formed structure, and is provided with a base 21, a wire clamping portion 22 integrally extending rearward from the base 21, and a contact arm 23 integrally extending forward from the base 21. The base 21 is flat, and is clamped on the insulating body 10, and is provided with a clamping portion 24 protruding toward the mounting surface 12, wherein the clamping portion 24 protrudes into the lower slot 120 and is in clamping fit with a limiting cantilever 121 in the lower slot 120, so that a stop and limiting effect on the terminal 20 is achieved, and the terminal 20 can be prevented from being pulled by the cable 200 to be separated from the insulating body 10. The wire clamping portion 22 is provided with a pair of U-shaped clamping arms 25 for clamping the cable 200 and piercing the insulation layer of the cable 200 to contact the core of the cable 200, thereby electrically contacting the connection terminal 20 with the cable 200. The contact arm 23 extends obliquely from the base 21 toward the abutting surface 11, and the contact arm 23 protrudes from the abutting surface 11 of the insulating body 10 to contact the circuit board (not shown), preferably, the contact arm 23 is provided with an arc-shaped contact head 230 protruding from the upper slot 110 on the abutting surface 11 for pressing against the surface of the circuit board (not shown) to make pressing contact with the surface of the circuit board (not shown), and the contact arm 23 is further provided with a stop end 231, wherein the stop end 231 extends forward from the contact head 230 and is accommodated in the opening 141 of the front end wall 14 and is blocked and limited by the limiting wall 142 in an upward direction, so that the contact head 230 of each terminal 20 cannot be separated from the insulating body 10, thereby ensuring that the contact head 230 of each terminal 20 can keep a consistent height and ensuring good contact effect. Preferably, the connection terminal 20 is further provided with a fixing arm 26 interposed between the base 21 and the wire clamping portion 22, and the fixing arm 26 is clamped on the partition 17. In addition, the stop tip 231 is vertically lower than the contact head 230 but higher than the base 21. Preferably, the cable 200 is clamped and connected with the terminal 20, and the cable 200 is clamped on the wire clamping portion 22 of the terminal 20 and is electrically contacted, and then assembled into the insulating body 10, thereby completing the assembly.

In summary, the present utility model improves the matching structure of the insulation body 10 and the connection terminal 20, and the limiting wall 142 of the insulation body 10 limits the contact arm 23 of the connection terminal 20, so as to ensure that the contact 230 protrudes from the insulation body 10 more orderly, and simultaneously, the limiting cantilever 121 of the insulation body 10 is engaged with the clamping portion 24 of the connection terminal 20, so as to solve the problem that the connection terminal 20 is easy to deform and fall off when being inserted into the insulation body 10.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make many possible variations and modifications to the technical solution of the present utility model using the above disclosed method without departing from the scope of the technical solution of the present utility model, which is defined in the claims.

Claims (8)

1. A cable electrical connector, comprising: the insulation body is provided with a butt joint surface, a mounting surface, a front end wall and a rear end wall, and a plurality of terminal grooves extending along the front-rear direction are formed in the insulation body; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part and a contact arm extending forwards from the base part, and is characterized in that: the terminal groove extends forwards to penetrate through the front end wall, and an opening and a limiting wall positioned above the opening are formed on the front end wall; the contact arm is provided with an arc contact head protruding out of the butt joint surface and a stop tail end positioned at the front end of the arc contact head, and the stop tail end extends into the opening and is abutted to the lower side of the limiting wall.

2. The cable electrical connector of claim 1, wherein: the terminal groove upwards penetrates through the butt joint surface of the insulating body, and a plurality of upper groove holes are formed in the butt joint surface; the terminal groove downwards penetrates through the mounting surface of the insulating body, and a plurality of lower slotted holes are formed on the mounting surface, and the lengths of the lower slotted holes in the front-rear direction are smaller than those of the upper slotted holes in the front-rear direction.

3. The cable electrical connector of claim 2, wherein: the insulation body is also provided with a limiting cantilever extending into the lower slot hole, and the limiting cantilever is positioned right below the terminal slot and is in clamping fit with the wiring terminal; and the lower slotted hole extends to two sides of the limiting cantilever from front to back.

4. The cable electrical connector of claim 3, wherein: the insulation body is also provided with a plurality of partition walls between the terminal grooves, the surfaces of the two sides of the partition walls are provided with oblique blocking walls exposed in the terminal grooves, and the oblique blocking walls extend obliquely from top to bottom to block and limit the wire clamping parts of the wiring terminals.

5. The cable electrical connector of claim 4, wherein: the terminal groove penetrates through the rear end wall backwards and forms a socket on the rear end wall; the rear end of the partition wall is T-shaped and is provided with a pair of guide inclined planes, and the guide inclined planes are arranged adjacent to the insertion opening.

6. The cable electrical connector of claim 5, wherein: the terminal groove is internally provided with a groove bottom wall which protrudes out of the rear end wall, and a groove extending in the front-rear direction is formed in the groove bottom wall; the opening penetrates the mounting surface in the vertical direction.

7. The cable electrical connector of claim 6, wherein: the base part is in a flat plate shape and is provided with a clamping part protruding towards the mounting surface, and the clamping part protrudes into the lower slotted hole and is matched with the limiting cantilever in the lower slotted hole in a clamping way.

8. The cable electrical connector of claim 7, wherein: the wire clamping part is provided with a pair of U-shaped clamping arms, the wiring terminal is also provided with a fixing arm between the base part and the wire clamping part, and the fixing arm is clamped on the partition wall.