TWI458196B - 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.

The connector for transmitting audio and video signals between electronic devices, the RCA interface connector is a common type of connection, usually uses multiple roots to realize the transmission of audio and video signals respectively, and when used in a large number, it occupies a large space. Therefore, with the development of various types of electronic devices, the space occupied by such connectors required to be configured is more miniaturized, and the corresponding performance cannot be weakened. When the RCA interface connector is too small, the connection stability of the connector and the mating connector may be correspondingly reduced.

Therefore, it is indeed necessary to provide a new cable connector to overcome the above drawbacks.

It is an object of the present invention to provide a cable connector, and more particularly to a cable connector that improves connection stability.

In order to achieve the above object, a cable connector of the present invention includes: a center terminal, an inner module partially covering the center terminal, a metal case accommodating the inner module, and a cable connecting the center terminal, The cable connector also has at least one outer terminal that is mounted within the metal housing and that is securely coupled to the mating connector.

Compared with the prior art, the cable connector of the present invention has the following effects: favorable cable connection The miniaturization of the connector improves the stability of the connection between the cable connector and the mating connector, and is not easy to fall off during use.

1‧‧‧Metal shell

100‧‧‧ cable connector

11‧‧‧ Body Department

12‧‧‧Extension

121‧‧‧ Groove

13‧‧‧Docking Department

131‧‧‧ accommodating space

14‧‧‧through hole

2‧‧‧Center terminal

21‧‧‧ Sockets

22‧‧‧Connecting Department

23‧‧‧Boss

3‧‧‧Internal module

31‧‧‧Exposed Department

32‧‧‧ Housing Department

4, 4', 4" ‧ ‧ external holding terminal

41, 42'‧‧‧ Cards Department

42‧‧‧After

42"‧‧‧小小点

43‧‧‧

5‧‧‧Installation block

51‧‧‧storage trough

6‧‧‧ Cable

7‧‧‧ Stress relief components

71‧‧‧ Flat body

72‧‧‧Cylinder

8‧‧‧Insulated housing

81‧‧‧ docking space

82‧‧‧ round holes

1 is an assembled perspective view of a cable connector according to a first embodiment of the present invention; a second view is an exploded perspective view of a cable connector according to a first embodiment of the present invention; and a third diagram is another 3D exploded view of the angle; 4th sectional view taken along the line IV-IV of the first figure; FIG. 5 is a partially exploded perspective view of the cable connector of the second embodiment of the present invention; A partial exploded view of a cable connector.

Referring to the first to fourth figures, the cable connector 100 of the first embodiment of the present invention includes a metal casing 1, an inner module 3 housed in the metal casing 1, and a center terminal 2 wrapped around the inner module 3. An external holding terminal 4 on the side of the center terminal 2, a mounting block 5 attached to the rear of the external holding terminal 4, a cable 6 connecting the center terminal 2, a stress releasing member 7 formed on the cable 6, and a covered metal casing 1. Inner module 3, insulating housing 8 of mounting block 5.

The metal casing 1 is cast, and includes a body portion 11 having a substantially elliptical shape, an extending portion 12 extending forward from the front surface of the body portion 11, an abutting portion 13 extending rearward from the body portion 11, and passing through the body portion 11 Through holes 14 on the front and rear surfaces. The extending portion 12 has a circular arc shape and is a sheet-like structure, the outer surface of which is flush with the outer surface of the body portion 11, and the extending portion 12 is provided with a groove 121 on the inner surface, and the groove 121 extends rearward through the body portion 11. The front and rear surfaces extend to the rear surface of the abutting portion 13. In this embodiment, in order to facilitate the manufacture of the metal casing 1, the groove 121 at the abutting portion 13 is exposed on the outer surface of the abutting portion 13. The groove 121 is spaced apart from the front surface of the extension 12. Body portion 11 and butt portion 13 A step (not numbered) is formed. The abutting portion 13 in this embodiment is composed of a plurality of metal sheets spaced apart from each other. In other embodiments, the butting portion 13 may also be surrounded by a closed metal sheet. The docking portion 13 is provided with a receiving space 131. The receiving space 131 has an irregular shape, and the receiving space 131 is substantially convex when viewed from the rear end. The accommodating space 131 penetrates the through hole 14 .

The center terminal 2 includes a plug portion 21 at a front portion thereof and a connecting portion 22 at a rear portion thereof. The diameter of the connecting portion 22 is smaller than the diameter of the plug portion 21, and the outer surface of the connecting portion 22 is provided with a boss 23.

The inner module 3 includes an exposed portion 31 having a cylindrical shape at a front portion thereof and an accommodating portion 32 at a rear portion of the exposed portion 31. The accommodating portion 32 has the same shape as the accommodating space 131.

The outer holding terminal 4 is made of a metal piece, and includes a bent-shaped holding portion 41 at a forward position in the middle, a straight rear portion 42 extending rearward from the holding portion 41, and the self-holding portion 41 forward. The extended front portion 43, the front portion 43 and the rear portion 42 are on the same straight line, and the holding portion 41 is formed to protrude from the surface toward the opposite surface. The holding portion 41 has two inclined surfaces connected to the rear portion 42 and the front portion 43.

The mounting block 5 is formed by injection molding of plastic, and has a receiving groove 51 formed inwardly recessed from one side surface thereof, and the receiving groove 51 communicates with the front and rear surfaces of the mounting block 5.

The cable 6 has a signal line (not shown) and a ground line (not shown). The stress relief member 7 is formed at the front end of the cable 6, and the stress relief member 7 includes a flat body 71 at its front end and a cylindrical body 72 at its rear end.

The insulating case 8 has a box shape, and the insulating case 8 has a mating space 81 recessed rearward from the front surface thereof and housing the abutting portion 13 of the metal case 1, and a circular hole 82 penetrating from the rear surface thereof to the docking space 81.

During assembly, the outer holding terminal 4 is assembled rearward from the front end of the recess 121 into the recess 121, the latching portion 41 of the outer holding terminal 4 is raised above the inner surface of the extending portion 12, and the mounting block 5 is oriented from the rear end of the recess 121 The front housing 42 of the mounting block 5 receives the rear portion 42 of the external holding terminal 4, and the receiving groove 51 and the rear portion 42 can be fixed by the interference fit, or by the glue or the combination of the two. When the terminal 4 is connected, the other surface opposite to the receiving groove 51 is in contact with the bottom surface of the recess 121. The mounting block 5 is interference-fitted with the recess 121, and the mounting block 5 is connected to the metal housing 1 by dispensing. The mounting block 5 and the outer holding terminal 4 block the recess 121 so that the inner module 3 does not overflow the extension portion 12. Of course, in the case of molding the inner module 3, if it is ensured that the glue does not overflow to the outside of the mating portion 13 of the metal casing 1, the mounting block 5 can be omitted, and the outer holding terminal 4 is fixed in the recess 121 by other means.

The central terminal 2 passes through the through hole 14 of the metal casing 1 and is placed in the mold to form the inner module 3. The receiving portion 32 of the inner module 3 is received in the receiving space 131 of the abutting portion 13, and the exposed portion 31 is exposed through the through hole 14. On the front surface of the main body portion 11, the inner module 3 covers the connecting portion 22 of the center terminal 2, the outer surface of the exposed portion 31 is flush with the outer surface of the plug portion 21, and the inner module 3 completely covers the convex surface of the connecting portion 22. a small portion of the connecting portion 22 is exposed on the rear surface of the inner module 3 for connection with the signal line, the rear surface of the inner module 3 is flush with the rear surface of the abutting portion 13, and the grounding wire is soldered to the outer holding terminal 4. The grounding wire can also be welded to the metal casing 1, and both welding methods can have the grounding function of the external terminal 4 and the metal casing 1.

The insulating housing 8 is mounted forwardly from the rear of the cable 6 to the metal housing 1, and the inner surface of the mating space 81 is interference-fitted with the outer surface of the abutting portion 13, and the front end surface of the insulating housing 8 abuts against the rear surface of the body portion 11. The outer surface of the insulating housing 8 is flush with the outer surface of the body portion 11, and the flat body 71 of the stress releasing member 7 is received in the insulating housing 8, and the cylindrical body 72 is received. In the round hole 82.

The outer holding terminal 4 is disposed in the recess 121, and the latching portion 41 is higher than the inner surface of the extending portion 12. When the mating connector (not shown) is mated with the cable connector 100, the latching portion 41 has elasticity. Resisting the butt joint of the mating connector makes the two connector connections more stable and does not fall off easily.

Of course, the external holding terminal can also be other structures. As shown in FIG. 5, the outer holding terminal 4' is bent rearward to form an elastic latching portion 42', and the latching portion 42' also has abutment against the docking connector. The efficacy of the department. As shown in the sixth figure, the front end position of the outer holding terminal 4" has a convex surface of a small bump 42" (also referred to as a holding portion), and the small bump 42" can also be abutted with the mating connector. Interference interferes with enhanced connection efficiency. Each of the above external holding terminals has a common feature: the external holding terminals have raised latching portions for resisting the mating connector.

The above description is only for the several embodiments 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 patents of the present invention. Covered by the scope.

100‧‧‧ cable connector

11‧‧‧ Body Department

12‧‧‧Extension

21‧‧‧ Sockets

31‧‧‧Exposed Department

4‧‧‧External holding terminal

41‧‧‧Card Department

6‧‧‧ Cable

8‧‧‧Insulated housing

Claims (9)

A cable connector comprising: a center terminal; an inner module partially covering the center terminal; a metal case for receiving the inner module; a cable connecting the center terminal; at least one external holding The terminal is mounted in the metal housing and securely connects the cable connector and the mating connector, and the outer holding terminal has a convex latching portion. The cable connector of claim 1, wherein the metal housing has a body portion, an extending portion extending forward from the body portion, and an abutting portion extending rearward from the body portion, The inner surface of the extension has a groove, and the outer holding terminal is received in the groove. The cable connector of claim 2, wherein the retaining portion is raised above an inner surface of the extension. The cable connector of claim 2, wherein the extension is located on one side of the center terminal. The cable connector of claim 4, wherein the cable connector further comprises a mounting block that holds the outer holding terminal so that the outer holding terminal does not retreat. The cable connector of claim 5, wherein the cable connector further comprises an insulative housing that abuts an abutment portion of the inner module, the insulative housing housing the inner module. The cable connector of claim 1, wherein the holding portion of the outer holding terminal is an elastic structure formed by a surface convex toward the opposite surface. The cable connector of claim 1, wherein the latching portion of the outer holding terminal is formed in an elastic structure that is bent rearward from a front end of the outer holding terminal. The cable connector of claim 1, wherein the holding portion of the outer holding terminal is a small bump higher than a surface of the outer holding terminal.