TWI574476B - Cable connector - Google Patents

Description

Cable connector

The present invention relates to a cable connector, and more particularly to a cable connector for transmitting audio and video signals.

A connector for transmitting audio and video signals between electronic devices. The RCA interface connector is a common type of connection. Usually, multiple roots are used to respectively transmit audio and video signals. When used in a large number, it takes up a large amount. space. In addition, the conventional RCA interface connector usually includes a conductive terminal, an insulator for accommodating the conductive terminal, and a casing for accommodating the insulator. The outer casing is made of a metal material, and the signal line of the cable is connected to the conductive terminal, and the grounding wire is connected to the metal casing. This type of connector structure is more complicated and the use of a metal casing results in higher costs.

Therefore, it is necessary to provide a cable connector to achieve miniaturization of the cable connector while reducing the cost.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a cable connector that can be miniaturized while reducing cost.

In order to achieve the above object, the present invention may adopt the following technical solution: a cable connector, comprising: an insulative housing, a central terminal holding the insulative housing, and a cable connecting the central terminal, the cable being included for transmission a signal line and a core wire connected to the center terminal and a ground layer separated from the core wire, the cable connector further having a mounting layer The insulating body has a terminal, the insulating body has a front end surface and a rear end surface, and the outer holding terminal includes a holding portion protruding from the front end surface and a connecting portion protruding from the rear end surface, the connecting portion and the grounding portion of the cable Connected.

Compared with the prior art, the cable connector of the present invention has the beneficial effects that the external holding terminal is in contact with the ground layer of the cable, the metal casing is not used, the cost is reduced, and the cable connector can be miniaturized.

100‧‧‧ cable connector

2‧‧‧Insulated body

21‧‧‧ Body Department

22‧‧‧Extension

221‧‧‧ inner surface

23‧‧‧ Groove

24‧‧‧ front end

25‧‧‧ rear end face

3‧‧‧Center terminal

31‧‧‧ docking end

32‧‧‧Connecting end

33‧‧‧Boss

4‧‧‧ Cable

41‧‧‧core

42‧‧‧ Grounding layer

5‧‧‧External terminal

51‧‧‧Card Department

52‧‧‧Connecting Department

53‧‧‧ Holding Department

54‧‧‧Bend

6‧‧‧ Stress relief components

61‧‧‧ Flat body

62‧‧‧Cylinder

7‧‧‧Insulated housing

71‧‧‧ docking space

72‧‧‧ round hole

The first figure is an assembled view of the cable connector of the present invention.

The second figure is an exploded perspective view of the cable connector of the first figure.

The third figure is an exploded perspective view of another angle shown in the second figure.

The fourth figure is a partial exploded view of the cable connector of the second figure.

The fifth figure is a partial exploded view of the cable connector of the fourth figure.

Figure 6 is a cross-sectional view taken along line VI-VI of the first figure.

Referring to the first to sixth figures, the cable connector 100 of the present invention comprises an insulative housing 2, a central terminal 3 fixed to the insulative housing 2, a terminal 5 on the side of the central terminal 3, and a connection to the central terminal 3. The cable 4 and the stress relief element 6 formed on the cable 4 and the insulating case 7 covering the insulative housing 2 and the stress relief element 6.

The insulative housing 2 includes a body portion 21 and an extension 22 extending forwardly from a side of the body portion 21, the extension portion 22 having an inner surface 221. The insulative housing 2 has a front end surface 24 , a rear end surface 25 , and a recess 23 . The recess 23 extends through the rear end surface 25 of the insulative housing 2 and the inner surface 221 of the extending portion 22 . The outer holding terminal 5 is retained in the recess 23 . Insulating body 2 Formed integrally with the center terminal 3, the outer holding terminal 5 is assembled from the rear end face 25 of the insulative housing 2 into the insulative housing 2.

The center terminal 3 includes a cylindrical butt end 31 and a connecting end 32 extending rearward from the rear end of the butting end 31, and the cross-sectional diameter of the butt end 31 is larger than the cross-sectional diameter of the connecting end 32, and the outer surface of the connecting end 32 is provided with a boss 33. This structure makes the center terminal 3 and the insulative housing 2 more securely coupled. The main body portion 21 of the insulative housing 2 has a flat shape, the center terminal 3 is fixed to one side of the main body portion 21, and the extending portion 22 is formed to extend forward from the main body portion 21 with respect to the other side.

Referring to the second and third figures, the outer holding terminal 5 is stamped from a metal piece, and includes a holding portion 51 protruding from the front end surface 24 of the insulating body 2 and a connecting portion 52 protruding from the opposite rear end surface 25, The connecting portion 52 is connected to the ground layer 42 of the cable 4. The externally held terminal 5 further includes a retaining portion 53 that is interposed in the insulative housing 2 . The latching portion 51 is connected to one end of the retaining portion 53 . The connecting portion 52 is connected to the other end of the retaining portion 53 via a bent portion 54 . The portion 54 is bent toward the side of the center terminal 3, and the setting of the bent portion 54 facilitates pressing the outer holding terminal into the recess 23 of the insulating body, and at the same time, it is easier to connect the connecting portion 52 of the external holding terminal 5 with the cable 4. The ground layer 42 is connected. The holding portion 51 of the external holding terminal 5 protrudes from the inner surface 221 of the extending portion 22, and when the mating connector (not shown) is mated with the connector 100, the engaging portion 51 has elasticity to abut against the mating connector. The two connectors are more stable and not easy to fall off. The externally held terminal 5 is first connected to the cable 4, that is, the connecting portion 52 is covered and connected to the grounding layer 42 of the cable 4, and then the externally connected terminal 4 is assembled to the insulating body 2 from the rear to the front. In the groove 23.

Referring to the second figure, the cable 4 includes a core wire 41 for transmitting signals and connected to the center terminal 3 and a ground layer 42 separated from the core wire 41. The ground layer 42 surrounds the periphery of the core wire 41.

The strain relief member 6 is formed at the front end of the cable 4, and the stress relief member 6 includes a flat body 61 at its front end and a cylindrical body 62 at its rear end.

The insulating housing 7 has a box shape, and the insulating housing 7 has a recessed space 72 recessed rearwardly from the front surface thereof and housing the insulating body 2, the stress releasing member 6, and a circular hole 72 extending forwardly from the rear surface thereof to the docking space 71.

When assembled, the insulative housing 2 is integrally formed with the center terminal 3, the connecting portion 52 of the external holding terminal 5 is wrapped around the ground layer 42 of the cable 4, and the outer holding terminal 5 is assembled from the back to the front to the insulative housing 2, and then The core wire 41 of the cable 4 is connected to the connection end 32 of the center terminal 3 to transmit a signal, then the front end of the wire cable 4 is formed with the stress relief element 6, and finally the insulating case 7 is assembled to the outside of the insulating body 2 and the stress relief element 6.

The above description is only one embodiment of the present invention, and not all of the embodiments, any equivalent changes taken by those skilled in the art by reading the specification of the present invention are the scope of patent application of the present invention. Covered.

100‧‧‧ cable connector

21‧‧‧ Body Department

22‧‧‧Extension

31‧‧‧ docking end

32‧‧‧Connecting end

52‧‧‧Connecting Department

6‧‧‧ Stress relief components

7‧‧‧Insulated housing

Claims (9)

A cable connector includes: an insulative housing having a front end surface and a rear end surface; a center terminal holding the insulative housing; a cable connecting the center terminal, the cable including a signal for transmitting and a center terminal a connected core wire and a ground layer separated from the core wire; wherein the cable connector further has a holding terminal mounted outside the insulating body, and the external holding terminal includes a latching portion protruding from the front end surface and protruding from the cable a connecting portion of the rear end surface, the connecting portion is connected to a ground layer of the cable, the insulating body has a body portion extending from the body portion, the extending portion has an inner surface, and the insulating body further has a concave portion a groove extending through the rear end surface of the insulating body and the inner surface of the extending portion, and the outer holding terminal is retained in the groove. The cable connector of claim 1, wherein the insulating body is integrally formed with the center terminal, and the outer holding terminal is assembled from the rear end face of the insulating body into the insulating body. The cable connector of claim 1, wherein the holding portion of the outer holding terminal elastically protrudes from an inner surface of the extending portion. The cable connector of claim 3, wherein the center terminal comprises a cylindrical butt end and a connecting end, and the cross-sectional diameter of the butt end is larger than the cross-sectional diameter of the connecting end. The cable connector of claim 1, wherein the center terminal is held on one side of the body portion, and the extension portion is formed to extend forward from the other side of the body portion. The cable connector of any one of claims 1 to 5, wherein the outer holding terminal further comprises a holding portion and a bending portion held in the insulating body, and the holding portion is connected to one end of the holding portion. The connecting portion is connected to the other end of the holding portion by a bent portion, and the bent portion is bent toward the center terminal side. The cable connector of claim 1, wherein the connecting portion of the external holding terminal is wrapped around a ground layer of the cable. The cable connector of claim 1, wherein the cable connector further comprises a stress relief element formed on the front end of the cable. The cable connector of claim 8, wherein the cable connector further comprises an insulative housing covering the insulative housing and the outer side of the strain relief member.