JPH0587850U - Multi-core cable connector - Google Patents

Abstract

(57) [Abstract] [Purpose] In a connector for a multi-core cable, the shield wire can be easily connected to the ground, and the ground terminal can be easily removed when the ground connection is not required. A ground terminal mounting portion 32 is provided on the outer periphery of a shell 23 of one of the connector members 20 which is to be coupled and disengaged from each other, and the mounting portion 32 includes:
A ground terminal 36, which is in contact with the pin contact 31 to which the socket contact for shield ground connection in the other connector member is connected, is detachably provided, and the shield wire of the multi-core cable connected to the other connector member is grounded through the ground terminal 36. If the grounding is not required, the grounding terminal 36 can be easily removed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector for connecting a multi-core cable using an annealed copper wire braid for the purpose of shielding the entire signal wire in addition to the signal wire.

[0002]

[Prior Art]

 Conventionally, as this type of connector, as shown in FIG. 3, when connecting the multi-core cable 100 to the connector member 1, the outer sheath 101 of the multi-core cable 100 is cut off to shield the annealed copper wire. 102 and the signal electric wire 103, each electric wire 103 for signal is electrically connected to each socket contact 4 fixed in the insert shell 2 through the insulator 3, and the outer circumference of the shielded wire 102 is grounded. One end 9 of the terminal 8 is fixed, and the other end 10 is pulled out to the cable connecting side from the axial hole of the rear shell 5 connected to the insert shell 2 and fixed to the stopper 7 of the cable retainer claw 6 for connection. As shown in FIG. 4, the signal wire 103 in the multi-core cable 100 is connected to the socket contact 4 and the shield wire 10 A grounding terminal 8 is fixed to the outer periphery of the terminal 8, and the terminal 8 is connected to the socket contact 4. Further, between the outer side of the socket contact 4 and the inner peripheral wall of the insert shell 2 which are connected to the grounding terminal 8, a conductive material is provided. There is known a structure in which a contactor 11 is interposed and a shield wire is grounded via the contactor 11 and a grounding terminal 8.

[0003]

[Problems to be solved by the device]

 By the way, in the former of those described in the prior art, the other end 10 of the ground terminal 8 is pulled out from the inside of the rear shell 5 and is fixed to the stop screw 7 of the tab 6, so that the multicore cable 100 When connecting, it is necessary to select a position where the ground terminal 8 can be connected. Therefore, not only is the connection work troublesome, but it is not necessary for a connector that does not have the tabs 6 and the locking screws 7. Since there are problems such as difficulty in connection, and in the latter case, the wiring combination with the ground terminal 8 must be determined in consideration of the positions of the conductive contact 11 and the contact socket contact 4. Not only is the work troublesome, but since the conductive contact 11 is fixedly provided inside the insert insulator 2 inside the solid insulator 3, all the socket contacts 4 are signaled. Etc. When used as electric wire, in the case of the shield grounding unnecessary, can not be removed conductive contact 11, it has a problem such as a non-generic.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to easily connect the ground of a shield wire in a multi-core cable and to connect the ground. An object of the present invention is to provide a connector for a multi-core cable having excellent versatility, in which the ground terminal can be easily removed when it is unnecessary.

[0005]

[Means for solving problems]

 To this end, the present invention provides a mounting portion formed on the outer peripheral surface of the shell of one of the pair of connector members to be coupled and disengaged from each other, preferably one mounting portion of the plurality of mounting portions. In addition, a grounding terminal for grounding the shielded wire of the multicore cable to be connected is detachably provided.

[0006]

【Example】

 An embodiment will be described with reference to the drawings and its operation. FIG. 1 is a perspective view of an example of a connector for a multi-core cable according to the present invention, and FIG. 2 is a longitudinal sectional view in a connected state. The connector member (receptacle) 20 of FIG. 1 has a threaded portion 25 on the outer periphery on the side connected to the connector member described later, with rectangular flange portions 21 having mounting holes 22 for the equipment mounting panel (not shown) at the four corners as boundaries. And a cylindrical shell 23 including a tubular portion 24 provided with a plurality of positioning key grooves 26 in the inner surface axial direction and a tubular portion 27 integrally provided on the opposite side of the tubular portion 24. is doing. Insulators 28, 29 are fixed in the tubular portion 27 of the shell 23 by a retaining ring 30, and a required number of pin contacts 31 are provided at the front and rear ends of the insulators 28, 29 in the axial direction. It is provided so as to project outward from the insulators 28 and 29.

A ground terminal mounting portion including an end face notch 33, an axial notch 34, and a screw hole 35 provided in the notch 34 extending from the end face of the tubular portion 27 to a part in the outer peripheral axial direction. 32 is provided, and a ground terminal 36 is detachably attached to the attachment portion 32. More specifically, the grounding terminal 36 has a substantially L shape having a horizontal piece 37 having a screw hole 38 and a forked vertical portion 39 integrally, and the grounding terminal 36 has a forked shape of the vertical portion 39. Part of the pin contact 31 (a pin contact to which a socket contact for shield earth connection in a connector member described later is connected) of the pin contact 31 has a portion protruding outward from the insulator 28 to shield earth. It is connected to a pin contact for use and is screwed into a matching hole between the screw hole 38 of the horizontal piece 37 and the screw hole 35 of the notch 34 in the mounting portion 32 by a screwing screw 40. Although not particularly shown, it is possible to provide a plurality of mounting portions 32 (including the end face notch 33, the axial notch 34 and the screw hole 35) of the ground terminal 36, which will be described later. It is possible to diversify the combination of connection wiring with the socket contact of the connector member.

As shown in FIG. 2, the other connector member (plug) 50 has a cylindrical insert shell 51, and the insert shell 51 integrally has a small diameter portion 52 and a large diameter portion 53. However, the small diameter portion 52 has a plurality of protrusions 54 which engage with the plurality of positioning key grooves 26 of the connector member shell in the axial direction of the outer periphery thereof, and the large diameter portion 53 has a screw thread at a part thereof. It has a section 55. Insulators 56 and 57 are fixed to the inside of the insert shell 51 by a retaining ring 58, and a required number of socket contacts 59 are provided in the axial direction in the insulators 56 and 57 with a multi-core cable described later. Only the connection-side end portion is provided so as to project outward from the insulator 57. A rear shell 60 is coaxially connected to the threaded portion 55 of the insert shell 51 by screwing an inner peripheral threaded portion 61 thereof. The lower cable retainer tab 62, which is integrally formed on the cable connection side of the rear shell 60, is provided with an upper cable retainer tab 63 and a screw 64, which are symmetrical to the lower cable retainer tab 62, and the inner shell screw is provided outside the insert shell 51. A connecting ring 65 having a portion 66 is provided.

A method of connecting the connector of the present invention having the above-described configuration and the multi-core cable 100 will be described. When the rear shell 60 of the connector member 50 is inserted into the multi-core cable 100, the jacket 101 is cut off to shield the shield wire 102 and the signal wire. 103, and one end of the ground wire 104 is fixed to the outer periphery of the shield wire 102, the ground wire 104 and the signal wire 103 are connected to the socket contact 59 of the insert shell 51, and then the rear shell 60 is attached to the insert shell 51. The multi-core cable 100 is screwed and connected, and the multi-core cable 100 is pressed by the cable pressing claw portions 62 and the claws 63 and fastened and fixed by the stop screw 64. Then, the connector member 50 and the connector member 20 to which the multi-core cable 100 is connected. However, insert the protrusion 54 into the positioning key groove 26. It is electrically connected by the connection of the ground wire 104 to the contact pin 31 to which the ground terminal 36 is connected, the connection of the socket contact 59 and the contact connection of each socket contact 59 to each signal wire pin contact 31, and then the connection. The threaded portion 66 of the ring 65 is screwed onto the shell portion 24 to connect the connector members 20 and 50 to connect the signal electric wires 103, and the shielded wire 102 includes the ground wire 104, the socket contact 59, and the pin contact. It is grounded through 31 and the ground terminal 36, thereby completing the connection of the multi-core cable 100.

As described above, the shielded wire 102 of the connected multi-core cable 100 is shielded by the earth terminal 36 that is detachably provided on the outer periphery of the shell 23 of the connector member (receptacle) 20. In the illustrated embodiment, the ground terminal 36 is provided on the receptacle side, but the ground terminal 36 can be provided on the plug side, and the same effect as when the ground terminal 36 is provided on the receptacle side is obtained. I have it.

[0011]

[Effect of the device]

 Thus, according to the present invention, the ground terminal for grounding the shielded wire of the connected multi-core cable is provided detachably on the outer periphery of the shell of the connector member. Is excellent in versatility because the ground terminal can be easily removed from the outside, and by installing the ground terminal attachment parts at multiple locations on the outer circumference of the shell, it is possible to use a pair of connector members connected to a multicore cable. It is possible to diversify the combination of the connection wiring with the contact.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a multi-core cable connector according to the present invention.

FIG. 2 is a vertical sectional view in a coupled state.

FIG. 3 is a vertical sectional view showing a conventional example.

FIG. 4 is a vertical sectional view showing still another example of the related art.

[Explanation of symbols]

 20 Connector Member (Receptacle) 23 Shell 32 Ground Terminal Mounting Part 36 Ground Terminal 50 Connector Member (Plug) 100 Multicore Cable 102 Shielded Wire

Claims (2)

[Scope of utility model registration request] 1. A multi-core cable connector comprising a pair of connector members that are coupled and decoupled from each other, wherein a shield of a multi-core cable to be connected to the shell outer peripheral surface of one of the pair of connector members. A connector for a multi-core cable, characterized in that a grounding terminal for grounding the wire is detachably provided. 2. The connector for a multi-core cable according to claim 1, wherein a mounting portion for the shield ground terminal is provided at a plurality of locations on the outer peripheral surface of the shell of one of the connector members.