CN220155781U

CN220155781U - Cable electric connector

Info

Publication number: CN220155781U
Application number: CN202320658120.5U
Authority: CN
Inventors: 吴永发; 宁婷婷; 方志宏; 毛玉华
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-12-08
Anticipated expiration: 2033-03-29

Abstract

The utility model provides a cable electric connector, comprising: the insulation body is provided with a plurality of terminal grooves extending along the front-back direction and a plurality of partition walls between the terminal grooves, and the surfaces of two sides of the partition walls are provided with oblique blocking walls exposed in the terminal grooves and limiting walls positioned on the front sides of the oblique blocking walls; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part, a contact arm extending forwards from the base part, and a pair of fixing arms between the base part and the wire clamping part, wherein the fixing arms extend from bottom to top and are abutted to the limiting wall. Compared with the prior art, the utility model has the advantages that the matching structure of the insulating body and the wiring terminal is improved, and the wiring terminal is upwards abutted to the insulating body by virtue of the fixing arm on the wiring terminal, so that the local upward bending deformation of the wiring terminal is prevented, the combination between the wiring terminal and the insulating body is more stable and tight, and the contact function of the wiring terminal is effectively ensured.

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 cable connector generally comprises an insulating body, a wiring terminal accommodated in the insulating body and a cable connected with the wiring terminal, wherein one end of the wiring terminal is a wiring terminal and used for connecting the cable, the other end of the wiring terminal is an elastic contact end and used for butting with another electric element, and for the cable connector in certain application scenes, when the wiring terminal is assembled into the insulating body, the local position of the wiring terminal is in a suspended state, especially near a wiring position, so that the connection between the wiring terminal and the insulating body is not stable and tight enough, and the wiring terminal is easy to deform, bend and even break at the positions, thereby affecting the stability and reliability of a contact function.

Disclosure of Invention

The utility model provides a cable electric connector, which solves the problem that the connecting terminal is deformed and bent locally due to poor combination of the connecting terminal and an insulating body in the prior art, thereby affecting the contact function.

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 plurality of terminal grooves extending along the front-back direction and a plurality of partition walls between the terminal grooves, and the surfaces of two sides of the partition walls are provided with oblique blocking walls exposed in the terminal grooves and limiting walls positioned on the front sides of the oblique blocking walls; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part, a contact arm extending forwards from the base part, and a pair of fixing arms between the base part and the wire clamping part, wherein the fixing arms extend from bottom to top and are abutted to the limiting wall.

Further, the inclined blocking wall extends obliquely from top to bottom to block and limit the wire clamping part of the wiring terminal, and the wire clamping part is provided with a pair of U-shaped clamping arms.

Further, the pair of fixing arms are U-shaped, and the height of the fixing arms in the vertical direction is smaller than the height of the clamping arms but higher than the height of the base.

Further, the pair of fixing arms protrude toward both sides of the connection terminal beyond the pair of holding arms.

Further, the limiting wall is integrally connected with the inclined blocking wall, the limiting wall comprises a top wall and a side wall, the top wall is abutted to the top of the fixing arm, and the side wall is abutted to the front side of the fixing arm.

Further, the two side surfaces of the partition wall are also provided with clamping grooves for clamping the base part, and the clamping grooves are formed on the front side of the limiting wall.

Further, the insulating body is provided with a butt joint surface, a mounting surface, a front end wall and a rear end wall, 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 a stop tail end extending into the opening, and the stop tail end 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 groove holes are formed in the mounting surface; the insulation body is also provided with a limiting cantilever extending into the lower slotted hole, and the lower slotted hole extends to two sides of the limiting cantilever from front to back.

Further, the base is provided with a clamping part protruding into the lower slotted hole, and the clamping part is propped against the front end of the limiting cantilever backwards.

Compared with the prior art, the utility model has the advantages that the matching structure of the insulating body and the wiring terminal is improved, and the wiring terminal is upwards abutted to the insulating body by virtue of the fixing arm on the wiring terminal, so that the local upward bending deformation of the wiring terminal is prevented, the combination between the wiring terminal and the insulating body is more stable and tight, and the contact function of the wiring terminal is effectively ensured.

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.

Fig. 6 is another schematic installation view of the connection terminal of the cable electric connector in the insulation body.

Description of the embodiments

Referring to fig. 1 to 6, 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 pair of fixing arms 26 interposed between the base 21 and the wire clamping portion 22, the fixing arms 26 are integrally connected with the base 21 and the wire clamping portion 22, the fixing arms 26 are clamped on the partition 17, the pair of fixing arms 26 are U-shaped, the height of the fixing arms 26 in the vertical direction is smaller than the height of the clamping arms 25 but is higher than the height of the base 21, and preferably, the pair of fixing arms 26 protrude toward both sides of the connection terminal 20 and exceed the pair of clamping arms 25. 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 a preferred embodiment of the present utility model, a limiting wall 173 is further formed on two side surfaces of the partition wall 17 and located at a front end of the oblique blocking wall 172, the limiting wall 173 is integrally connected with the oblique blocking wall, and the limiting wall 173 is used for interference fit or snap fit with the fixing arm 26 of the terminal 20, as shown in fig. 6, the limiting wall 173 includes a top wall 173a and a side wall 173b, the top wall 173a abuts against a top of the fixing arm 26 to prevent the fixing arm 26 from being deformed or displaced upwards, and the side wall 173b abuts against a front side of the fixing arm 26 to prevent the fixing arm 26 from being displaced forwards excessively. Therefore, the positioning walls 173 and the fixing arms 26 can well position the terminal 20 in the terminal slot 16 without loosening or shaking, and it is particularly important to prevent the problem of upward arching or buckling deformation of the position of the base 21 of the terminal 20 and the engagement position of the base 21 and the wire clamping portion 22 under the action of the fixing arms 26. Preferably, the partition 17 further has a catching groove 174 caught by the base 21 formed on both side surfaces thereof, and the catching groove 174 is formed at the front side of the limiting wall 173.

In summary, according to the present utility model, the mating structure of the insulation body 10 and the connection terminal 20 is improved, and the connection terminal 20 is prevented from being locally bent and deformed by the fixing arm 26 on the connection terminal 20 to be abutted upwards to the insulation body 10, so that the connection between the connection terminal 20 and the insulation body 10 is more stable and tight, and the contact function of the connection terminal 20 is effectively ensured.

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

1. A cable electrical connector, comprising: the insulator and accept a plurality of binding post in the insulator, the insulator is equipped with a plurality of terminal grooves that extend along fore-and-aft direction and a plurality of partition walls between a plurality of terminal grooves, its characterized in that: the two side surfaces of the partition wall are provided with oblique blocking walls exposed in the terminal grooves and limit walls positioned on the front sides of the oblique blocking walls; the wiring terminal is provided with a base part, a wire clamping part extending backwards from the base part, a contact arm extending forwards from the base part, and a pair of fixing arms between the base part and the wire clamping part, wherein the fixing arms extend from bottom to top and are abutted to the limiting wall.

2. The cable electrical connector of claim 1, wherein: the inclined blocking wall extends obliquely from top to bottom to block and limit the wire clamping part of the wiring terminal, and the wire clamping part is provided with a pair of U-shaped clamping arms.

3. The cable electrical connector of claim 2, wherein: the pair of fixing arms are U-shaped, and the height of the fixing arms in the vertical direction is smaller than the height of the clamping arms but higher than the height of the base.

4. The cable electrical connector of claim 3, wherein: the pair of fixing arms protrude toward both sides of the wiring terminal and exceed the pair of clamping arms.

5. The cable electrical connector of any one of claims 1 to 4, wherein: the limiting wall is integrally connected with the inclined blocking wall, the limiting wall comprises a top wall and a side wall, the top wall is abutted to the top of the fixing arm, and the side wall is abutted to the front side of the fixing arm.

6. The cable electrical connector of claim 5, wherein: and clamping grooves for clamping the base are formed on the surfaces of two sides of the partition wall, and the clamping grooves are formed on the front side of the limiting wall.

7. The cable electrical connector of claim 6, wherein: the insulating body is provided with a butt joint surface, a mounting surface, a front end wall and a rear end wall, 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 a stop tail end extending into the opening, and the stop tail end is abutted to the lower side of the limiting wall.

8. The cable electrical connector of claim 7, 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 groove holes are formed in the mounting surface; the insulation body is also provided with a limiting cantilever extending into the lower slotted hole, and the lower slotted hole extends to two sides of the limiting cantilever from front to back.

9. The cable electrical connector of claim 8, wherein: the base is provided with a clamping part protruding into the lower slotted hole, and the clamping part is propped against the front end of the limiting cantilever backwards.