JPS6021906Y2 - Shielding cover case for electrical connectors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shielding cover case for an electrical connector for enclosing an electrical connector for connecting electrical cables having a shielding layer.

2. Description of the Related Art As an electrical connector for connecting electrical cables having a shield layer, there are multi-type connectors used for computers and peripheral terminals.

Traditionally, this type of multi-type connector has been used for multiple purposes, such as inside electronic devices and as an interface between devices.
There is a growing demand for connectors of plastic (integral type) construction that are small, lightweight, and capable of mass production.

However, recently, electromagnetic interference in electronic devices has become a major problem, and "noise prevention measures" are being considered.

Here, "noise prevention measures" means to prevent unnecessary radio waves from being radiated or intruding from electrical connectors and cables.

Traditionally, electrical connectors have been covered as a measure to prevent such noise, but in all of these conventional methods, enclosure and grounding for unnecessary radio wave radiation are performed separately, so noise can be prevented. This was not a reliable preventive measure.

In addition, the conventional connector assembly structure and cable connection structure are complicated, which makes it difficult to install the equipment, and the connector unit has a ground connection. Some changes need to be made,
There is an inconvenience in that it is necessary to replace all the connections, including the cable connections, for connectors that have already been connected and wired.

There is also a conventional method that uses a signal connection terminal, but the wire diameter is small and it is not effective as a noise prevention measure.

In view of the problems of the prior art as described above, the purpose of the present invention is to develop an electrical connector that can reliably prevent noise without requiring any changes to the electrical connectors used in the past and without complicating the structure. An object of the present invention is to provide a shielding cover case for a connector.

Next, the present invention will be described in detail with regard to embodiments of the present invention based on the accompanying drawings.

FIG. 1 is a perspective view of an exploded arrangement of parts of a connector device using a shielding cover case for an electrical connector as an embodiment of the present invention.

The electrical connector shielding cover case of this embodiment mainly consists of a pair of cover cases 1A and IB made of conductive metal material.

Since cover case IA and cover case 1B are almost symmetrical, only cover case 1B, which is well represented in FIG. 1, will be described in detail.

Each wire 1 of the electrical cable 10 is attached to the cover case IB.
Connector unit 7 having contacts 7A connected to 2
A connector unit stop i8A is formed for inserting the stopper 8 screwed into the connector unit, and a pushbutton holding recess 6A for inserting and holding the pushbutton 6 is further formed.

Furthermore, the cover case IB is provided with a lock groove 5A in which a lock 5 which is always biased by the force of the push button 6 by a spring 4 is disposed.

The cover case IB is provided with a cable insertion recess 10A through which the electric cable 10 is passed.
A cable holding projection 10A' for holding down the electric cable 10 is formed on the wall 0A.

Further, the cover case IB is formed with a receiving hole 11A for connecting the shield layer 11 of the electric cable 10 with a tapping screw or the like, and also corresponds to the caulking hole 32 of the holding plate 3 having the contact piece 31. A boss 33 is provided.

The assembly order for enclosing the connector unit 7 to which the electrical cable 10 is connected using the electrical connector shielding cover case of the present invention will be explained first.
As shown in FIG. 2, the push button 6 is inserted into the push button holding recess 6A of the cover case IB, and the lock groove 5 is inserted into the push button holding recess 6A of the cover case IB.
With the lock 5 and the spring 4 arranged at A, the lock 5 and the spring 4 are held down, and the caulking hole 32 of the holding plate 3 is fitted into the boss 33, and the boss 33 is caulked, and the holding plate 3 is attached to the cover case. Fixed connection to IB.

Since the holding plate 3 and its contact piece 31 are integrally formed of a conductive material with spring properties, the contact piece 31 is electrically connected to the cover case IB.

Next, as shown in FIG. 3, the electric cable 10 is positioned in the cable insertion recess 10A of the cover case IB, and the stopper 8 of the connector unit 7 is inserted into the connector unit stopper groove 8A.

Then, the shield layer 11 of the electric cable 10 is electrically connected to the cover case IB by fixing the shield layer 11 of the electric cable 10 to the receiving part 11A with the tapping screw 11B.

Further, at this time, if a part of the shield layer 11 is folded back so as to be attached to the cable holding protrusion 10A', it is effective as a shielding effect.

Finally, remove the pushbutton 6 from the cover case IB shown in Figure 2.
The cover case IA assembled in the same manner as above is assembled to the cover case IB, and the screws 40 and nuts 41 (see FIG. 1) are used to tighten the cover case IA and the cover case IB.

As illustrated in FIG. 1, the connector unit 7 is surrounded by cover cases IA and IB as described above.
The mating connector unit 9 to be coupled with the electronic device has a stopper bracket 2 made of a conductive material and directly connected to the chassis 13 of the main body of the electronic device.

The stopper bracket 2 is provided with a lock claw portion 21 that engages with the lock 5 described above.

For such a mating connector unit 9, a connector unit 7 surrounded by cover cases IA and IB is
In order to couple the connector unit 7 to the connector unit 9, the push button 6 is pressed to move the lock 5 against the spring 4, and then the connector unit 7 is pushed into the connector unit 9.

Such a coupled state is shown in an enlarged sectional view in FIG.

As clearly shown in FIG. 4, in such a coupled state, the contact piece 31 comes into spring contact with the outer surface of the stopper bracket 2, and therefore the cover cases IA and I
B via the contact piece 31 and the stopper bracket 2,
It will be electrically connected to the chassis 13 of the electronic device.

The cover case of the present invention shields radio waves emitted from the connector by surrounding the connector, and also
By grounding the defective radio waves generated by the connector unit cable through the chassis surface of the device, more reliable noise prevention can be achieved. can do this without any changes,
Its structure is simple and it has excellent workability.

Therefore, the cover case of the present invention is particularly effective for connector units made of plastic.

In the above-mentioned embodiment, the cover cases IA and 1B are made of conductive metal material, but the present invention is not limited to this, and may be made of conductive plastic, or may be made of plastic material. It is also possible to use a conductive metal plated version of the one that was so popular in Japan.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of a connector device using a shielding cover case for electrical connectors as an embodiment of the present invention, and Figures 2 and 3 are the shielding cover case for electrical connectors shown in Figure 1. FIG. 4 is an enlarged sectional view showing the connected state of the connector device of FIG. 1. FIG. IA, IB...Cover case, 2...
Stopper bracket, 3... Retainer plate, 7...
... Connector unit, 9 ... Mating connector unit, 10 ... Electrical cable, 11.
...Shield layer, 11A...Acceptance, 11
B... Tapping screw, 13... Chassis, 31... Contact piece.

Claims (3)

[Scope of utility model registration request] (1) In a shielding cover case for an electrical connector for enclosing an electrical connector for connecting an electrical cable having a shield layer, a pair of cover cases each having a conductive surface applied in at least a layer over the entirety; means for connecting a shield layer of the electric cable to the conductive surface; and a conductive contact piece connected to the conductive surface of at least one of the pair of cover cases;
When the pair of cover cases are combined with each other, the pair of cover cases surrounds the connector unit to which the electric cable is connected, except for the connecting end side with the mating connector unit, and When coupled to the electronic device, the conductive contact piece is adapted to surround the conductive member of the mating connector that is in direct contact with the chassis surface of the electronic device body, and the conductive contact piece extends along the inner surface of the cover case. A shielding cover case for an electrical connector, characterized in that the scales are in contact with the conductive member of the mating connector. (2) The shielding cover case for an electrical connector according to claim 1, wherein the conductive surface is provided by a conductive material forming the case. (3) The shielding cover case for an electrical connector according to claim 1, wherein the conductive surface is provided by a conductive coating applied to the surface of the case.