Connector plug

Details Connector plug Connector plug

1997-12-10

2000-02-15

Bradley, Paula

Electrical connectors

With vitreous-type envelope

Having bayonet-coupling contact

H01R 903

Patent

active

060246065

DESCRIPTION:

BRIEF SUMMARY
TECHNOLOGY FIELD

The present invention relates to a connector plug mainly be suitable for the transmission of a digital signal in case a VTR, TV, CD player, tuner, amplifier, etc. are mutually connected by using a connector composed of a connector plug and a connector socket.


BACKGROUND TECHNOLOGY

In general, a connector 10 is, as shown in FIG. 7(a), composed of a connector socket 12 installed at a body chassis side and the connector plug 11 mounted at the end of a cable 25.
The above-mentioned connector plug 11 has installed plural contacts 23 to the inside opened of the front of a housing 22, and the outer periphery of this housing 22 has been covered by an angular cylindrical metal shell 32. Said plural contacts 23 have been connected to each signal conductor and power line of the cable 25, and this connecting portion has been made by being covered with a cover 24.
Conventionally, for the sure contact when fitting the connector plug 11 to the connector socket 12, as shown in FIG. 7(b), a bulging-out portion 35 to let have a spring property has been formed both in the tip portion and the central portion in both the top face and the bottom face of the metal shell 32, respectively.
The conventional connector plug 11 is designed to hold the contact with the connector socket 12 side only by these bulging-out portions 35. However, even though it is desired to install the bulging-out portion 35 of sufficient shape to function as the spring portion to the angular cylindrical metal shell 32, under the existing circumstances where the down sizing has been demanded there is a dimensional restriction, resulting in a problem that a sufficient spring property cannot be obtained.
Therefore, the present invention is to aim at offering a connector plug that a sufficient spring property can be obtained without changing hardly the shape of the conventional metal shell.
Besides, the present invention is to aim at offering a connector plug that the construction as a whole is compact, and the metal shell portion is surely adhered and connected to the connector socket.


DISCLOSURE OF THE INVENTION

The present invention is, as shown in FIG. 1 and FIG. 3, a connector plug characterized by the fact that a housing 78 with plural contacts 82 in a socket engagement hole 81, in the connector plug composed by being covered with a metal shell portion 88 of a shield case 79 composed of the conductive metal plate, the said metal shell portion 88 is roughly angular cylindrical, by installing an elastic portion 77 bulged out to this angular cylindrical both-side portion or curved to warp the lower part of the roughly angular cylindrical both-side portion outwards in a longitudinal direction, and forming a gap to let have flexibility to the metal shell portion 88 proper in the bottom in the length direction.
When inserting a connector plug 41 into a connector socket 42, by the elasticity portion 77 in the metal shell portion 88, the metal shell portion 88 has flexibility as a whole, the recess when the metal shell portion 88 is pushed into the inside is absorbed by the gap 89, and the metal shell portion 88 is surely adhered and connected to the connector socket 42.
Besides, since the metal shell portion 88 proper has flexibility, the elastic portion like the conventional projection portion, etc. is not required, and the whole construction becomes compact.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an decomposed perspective view showing an embodiment of the connector plug by the present invention.
FIG. 2 is a cross-sectional view of connector plug and connector socket engaged and connected to this connector plug by the present invention.
FIG. 3(a) is a cross-sectional view showing the first embodiment of the elasticity portion 77 in the metal shell portion 88.
FIG. 3(b) is a cross-sectional view showing the second embodiment of the elasticity portion 77 in the metal shell portion 88.
FIG. 4 is an decomposed exploded perspective view of connector socket in FIG. 2.
FIG. 5 is a cross-sectional view along the A--A line in FIG. 2.
FIG

REFERENCES:
"P1394a Draft Standard for a High Performance Serial Bus (Supplement)"; IEEE; P1394a Draft 2.0; Mar. 15, 1998; pp. 25-31.

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