JPH0515733Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connector device to which a cable provided with a shield coating is connected.

[Prior Art] In general, signal transmission cables have a shield coating around the outer periphery of the signal line and an insulating coating on the outside of the shield coating in order to protect the transmitted signals from the influence of electromagnetic fields. It is configured. When connecting such a cable to a connector device, first the insulation coating near the end of the cable is stripped off to expose the shield coating. This shield covering is then connected to a grounding circuit as appropriate. Then, the shield coating on the tip of the cable is removed to expose the signal line, and this signal line is connected to a predetermined connection terminal in the connector device.

When connecting such cables, the cable's shield covering and the connector case of the connector device should be at the same potential, and the connection terminals should be set inside the connector case while being housed in an insulating housing. The contact portion between the connection terminal and the signal line is surrounded by a connector case, and the entire contact portion is shielded.

FIG. 5 shows a conventional example of such a connector device, in which a shield coating 53 provided on the outside of the signal lines 51 and 52 is arranged so as to come into contact with a cable receiving portion 58 of a metal connector case 54. is set to Then, a holding metal fitting 55 is placed on top of the shield coating 53, and this metal fitting is attached to a pair of screws 56, 57.
By fixing the cable to the case 54 using
is ensured to be in contact with and held in the connector case 54.

However, in a structure using such a presser metal fitting, it is necessary to tighten the screws for each connector, so the workability is not good. Further, since screw holes for screws must be formed in the connector case, it is difficult to downsize the case.

[Problems to be Solved by the Invention] Therefore, an object of the present invention is to enable a cable having a shield coating to be easily connected and configured in a sufficiently miniaturized manner, and to provide a cable having a shield coating, such as a It is an object of the present invention to provide a connector device in which the state of connection to a ground circuit can also be reliably set.

[Means for solving the problem] That is, in the connector device according to the present invention, the cable receiving portion of the connector case is formed of a conductive material, a pair of locking holes are formed on both sides of the cable receiving portion, and a pair of locking holes are formed on both sides of the cable receiving portion of the connector case. A cable pressing member is prepared which has claws formed at both ends to be locked into the stop holes. This pressing member is made of an elastic body such as a leaf spring, and between the claws, a contact part is formed that contacts the shield coating of the cable, and an elastic member is formed between the contact part and the claw part. A folded portion is formed.

[Function] With the cable shield covering part set in the cable receiving part of the connector case in which the locking hole is formed, and the pressing member set thereon, the above-mentioned bent part of this pressing member is set. When the claw portion is locked in the locking hole while being elastically compressed, the cable is held between the contact portion of the pressing member and the connector case. Therefore, the shield covering of the cable can be brought into contact with and fixed to the connector case only by this pressing member without using fixing members such as screws.

[Embodiment] An embodiment of the connector device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 shows its structure, and this connector device includes first and second connector cases 11 and 12 made of metal casting (die casting). The first connector case 11 is provided with an insulating housing 13 having a built-in connection terminal. The tip of the cable 20 to be connected to the connection terminal is inserted into the connector case 11.
This cable 20 includes a shielding sheath 22 inside an insulating sheath 21, and further includes two signal lines 2, for example, insulated from each other, inside this sheathing 22.
It is a shielded cable with 3,24. The insulating sheath 21 of the cable 20 is stripped off inside the case 11, and the shield sheath 22 is exposed. The exposed part of this shield coating is
It is placed on a cable receiving part 14 formed in the case 11. In a portion beyond the cable receiving portion 14, the shield coating 22 is also removed, and the two signal lines 23 and 24 are connected to predetermined connection terminals inside the housing 13, respectively.

A cable pressing member 30 is set on the shield coating 22 of the cable 20. The cable pressing member 30 is made of an elastic plate such as a plate spring, and has a contact portion 31 formed in a portion that contacts the surface of the shield coating 22.
Convex folded portions 32 and 33 are formed on both sides of 1. Furthermore, these bent portions 32,
Claw portions 34 and 35 are formed at the tip of 33. First and second locking holes 15 and 16 are provided on both sides of the cable receiving portion 14 of the connector case 11 so that the claw portions 34 and 35 are locked.

The pressing member 30 is attached as follows. First, connect cable 2 to connector case 11.
0, and place the shield coating 22 part on the cable receiving part 14. Then, the claw parts 34 and 35 of the pressing member 30 are inserted into the locking hole 15 of the case so that the shield coating 22 is sandwiched between the contact part 31 of the pressing member 30 and the cable receiving part 14 of the case 11. 16 and lock it. When the pressing member 30 is locked to the connector case 11 in this way, the shield coating 22 of the cable 20 is moved to the cable receiving part 1 by the restoring elastic force of the bent parts 32 and 33.
4, the connector 11 and the shield sheath 22 come into contact and are electrically connected.

FIG. 2A shows this state in cross section, and in this state, the second connector case 12
When covered with , it becomes as shown in Figure 2B. This connector case 12 is as shown in FIG. This connector case 12 is connected to the first connector case 1 by screws 17 and 18 shown in FIG.
1 and are electrically connected to each other.

In this embodiment, since the second connector case 12 and the tops of the bent portions 32 and 33 of the pressing member 30 are configured to contact each other, the screws 17 and 18
As the shield coating 22 is tightened, the shield coating 22 is pressed even more strongly against the case 11. In this case, the bending angle a of the bending parts 32 and 33 on the contact part 31 side is
The shield is pressed most effectively when the angle is 90°.

FIG. 3 shows another embodiment of the pressing member 30. In the case of this pressing member 30, the contact portion 31 is in the shape of a flat plate, and the folded portion 32 is only at one location. However, even in this case, the pressing member 3
Claw portions 34 and 35 are formed at both ends of 0, respectively.
As shown in Fig. 4, the locking hole 1 of the connector case 11
5 and 16. Note that when there is only one bending portion, a high pressing force can be obtained by setting the cable 20 at a position away from the bending fulcrum b as shown in this figure. Furthermore, as shown in this figure and FIG. 2, if the pressing member 30 is used, there is no need to provide screw holes in the connector case as in the conventional case, so it is possible to downsize the connector device. I can do it.

Note that the connector case does not need to be cast from metal, and may be formed with a metal coating, such as by pasting metal foil on the inner surface of the insulating case. In this case, a conductive portion that leads the cable receiving portion 14 to the ground circuit may be formed in the case.
Further, in the embodiment shown in FIG. 2B, the top of the pressing member is pressed by the second connector case, but when the first and second connector cases are combined, the pressing member and the There is no particular need to make contact with the connector case No. 2.

[Effects] As described above, in the connector device according to the present invention, a pair of locking holes are formed on both sides of the cable receiving portion where the cable of the connector case is set, and the cable is locked in the locking holes. A cable pressing member having claw portions at both ends thereof is made of an elastic body, and by locking the claw portions in the locking holes, the shield covering can be fixed in contact with the connector case. Therefore, the shield covering can be fixed without using conventional screws, and the connector connection work can be performed efficiently.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a connector device according to an embodiment of the present invention, FIG. 2 is a sectional view corresponding to the - line in FIG. 1, and FIG. 3 is a pressing member according to another embodiment of the present invention. 4 is a diagram showing a connector device using the pressing member shown in FIG. 3, and FIG. 5 is a sectional view of a conventional connector device. 11...first connector case, 12...second
Connector case, 14... Cable receiving part, 1
5, 16...Lock hole, 20...Cable, 22...
...Shield coating, 30...Cable pressing member, 3
1...Contact part, 32, 33...Bending part, 34, 3
5...Claw part.

Claims (1)

[Claims for Utility Model Registration] (1) A cable receiver is provided with a connecting terminal therein and a cable that is connected to the connecting terminal in a predetermined manner, and at least this cable receiver is made of a conductive material. The first step was to
a connector case, combined with the first connector case,
a second connector case that is coupled so as to incorporate the connection terminal and the cable receiving part, and a shield covering part of the cable that is made of an elastic body and is set in the cable receiving part of the first connector case. a cable pressing portion held by holding the cable; and first and second engaging portions formed on both sides of the cable receiving portion in the first connector case in a direction substantially orthogonal to the direction of the axis of the cable. first and second claw portions that lock in the stop hole to restrict displacement in a direction substantially perpendicular to the axial direction of the cable and hold the cable in the cable pressing portion;
The cable pressing portion and the first and second claw portions are provided continuously, protrude in the coupling direction of the first and second connector cases, and the first
The cable pressing part and the first and second cable pressing parts press the cable pressing part in the joining direction of the connector case while being in contact with the second connector case when the connector case and the second connector case are relatively joined. 1. A connector device comprising: a cable pressing member having a folded bending portion formed between the cable pressing member and at least one of the claw portions of the cable pressing member; (2) The connector device according to claim 1, wherein the folded portion of the cable pressing member is configured such that the top portion thereof can come into contact with the second connector case.