JPH0739184Y2 - Shielded connector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a shield structure for waterproofing and preventing noise of a connector using a shielded electric wire.

[Conventional technology]

FIG. 4 is a perspective view showing a conventional shield structure.
The figure is a longitudinal sectional view.

On the outer circumferences of the male and female connectors d and e, case-shaped shield covers a and b made of conductive synthetic rubber connected to the braided wire c at the base ends f and g, and the tip parts h and i are mutually connected. It is designed to fit together to prevent noise.

However, in the above-described conventional structure, since the shield covers a and b are made of rubber and are flexible, the fitting workability is poor, and there is a gap between the tip portions h and i after the fitting, so that the shielding property is high. There was a risk of deterioration and water and dust entering the connector. Further, since the connector is covered on the outer circumference of the original connector, the overall volume is increased and the space efficiency is poor.

[Problems to be solved by the device]

In view of the above points, the present invention provides a compact shield structure for a connector which has good fitting workability, can be securely fitted without a gap, and can prevent deterioration of the shielding property and entry of water or the like, and is compact. The purpose is to

[Means for Solving the Problems]

To achieve the above object, the present invention relates to a shield structure of a connector connected to a shielded electric wire, in which a terminal is provided at the end of the lead wire and a coil-shaped conductive connecting tube holding the lead wire. Is disposed at the end of a connector having conductivity on the skin, and a conductive gel is filled inside the cover box that integrally holds the lead wire, and one end of the cover box is braided with the shielded wire. The basic structure is a shield structure of a connector in which the coil-shaped connecting tube is connected to the other end of the connector.

〔Example〕

FIG. 1 is an exploded perspective view showing an embodiment of a shield structure for a connector according to the present invention, and FIG. 2 is a longitudinal sectional view of the same.

A cover box C connected to the shielded electric wire D is connected to one end of a coil-shaped connecting cylinder E, and is composed of a male connector having a male housing A at the other end and a female connector similarly having a female housing B.

The structure of the male connector is such that the skin of the shielded wire D and the lead wire 2 from which the braided wire 1 has been peeled off are connected to the coiled connecting tube E having conductivity.
The cylindrical socket 3 made of metal, which has two or three end portions of one end thereof, crimped at one end, is inserted, the waterproof plug 4 made of rubber is further penetrated, and the female terminal 6 is crimped to the core wire 5. The metal plate 7 that is an annular body that holds the sockets 3 integrally includes
A concave portion 9 that engages with the convex portion 8 is provided, the surface of which is plated, and the outer surface of which is integrally molded with a male housing A made of synthetic resin having conductivity. The cover box C, which relays the shielded electric wire D and the coil-shaped connecting tube E, is made of synthetic resin and can be vertically divided into two parts and can be fitted. Engages with one end of the connecting tube. Also, when assembling the cover box C,
The space between the lead wire 2 and the cover box C is filled with a conductive gel sheet 10.

The structure of the female connector is a tubular body made of metal in which the lead wire 2 from which the skin of the shielded wire D and the braided wire 1 have been peeled off is crimped at one end with two to three turns of the coil-shaped connecting tube E made of metal. The socket 3 is inserted, the waterproof plug 4 made of rubber is further penetrated, and the male terminal 6a is crimped to the core wire 5. The annular metal plate 7a that integrally holds each socket 3 is provided with a concave portion 9 that engages with the convex portion 8 of the socket 3, the surface of which is plated, and the outer surface of which is made of a conductive synthetic resin. It is formed integrally with the female housing B. Also, a metal plate 11 with a part of the annular body cut out is integrally formed at the end portion of the female housing B which receives the male housing A, and a position where the tip portion Aa of the male housing A abuts inside. A ring-shaped packing 12 is attached to. The cover box C, which relays the shielded electric wire D and the coil-shaped connecting tube E, is made of synthetic resin and can be vertically divided into two parts and can be fitted. Engages with one end of the connecting tube. When the cover box C is assembled, the space between the lead wire 2 and the cover box C is filled with the conductive gel sheet 10.

Incidentally, the socket 3'in FIG. 2 shows the coil-shaped connecting cylinder E and the position before they are crimped at their ends.

Next, FIG. 2 will be used to explain how the functions of the sealing and the shield are achieved due to the structure as described above.

First, regarding the sealing, the lead wire 2 in the female housing B is sealed with the waterproof wire 4 on the electric wire D side of the female housing B whose surface is plated, and when the female and male housings are fitted together, the male housing is fitted. The tip Aa of A is packing 12
, And the mating surface is sealed. The middle lead wire 2 of the male housing A is sealed with the waterproof plug 4 and the electric wire D side of the male housing A whose surface is plated. That is, the periphery of the space where both female and male terminals are exposed and fitted is sealed.

Next, the shield against external noise will be described from the female housing B side. In the cover box C, the braided wire 1 and the coil-shaped connecting cylinder E are made of the conductive gel sheet 10
And the metal coil-shaped connecting tube E is caulked to the metal socket 3, so that the socket 3 conducts,
Further, the socket 3 contacts the metal plate 7a, the metal plate 7a contacts the plated surface on the surface of the female housing B, and the metal plate 11 is at the same potential as the braided wire 1 through the plated surface. In the male housing A system as well, the potential of the braided wire 1 is set to the metal plate 7 in the same manner. Here, when the female and male housings are fitted together as shown in FIG. 2, the metal plate 11 on the female housing B side and the metal plate 7 on the male housing A side are formed.
Contact each other, so that the braided wires of the female and male connector housings are electrically connected to each other and have the same potential. Moreover, the lead wire 2
Since the entire circumference of is covered with a metal body of the same potential, it is completely shielded.

The portion of the lead wire 2 covered with the coil-shaped connecting tube E has flexibility during handling, and prevents stress from concentrating locally on the lead wire 2 and also prevents breakage.

Next, a second embodiment will be described with reference to FIG.

One end of a cover box 13 made of synthetic resin, which can be divided into upper and lower parts and which can be fitted to each other, can be attached to the braided wire 1 of the electric wire D, and the other end 13a of the lead wire 2 made of metal. One end of a coil-shaped connecting cylinder (14) whose whole cross-section is integrally wound in an oval shape can be wrapped around.
Furthermore, when assembling, the conductive gel sheet is filled in the cover box 13 as in the first embodiment.
At the other end of the coil-shaped connecting cylinder 14, a metal socket 15 for integrally holding the entire lead wire 2 is crimped. Metal plate 17 which is integrally formed with the male connector housing A
The recess 18 has a recess 18 for engaging the protrusion 16 of the socket 15.

Since the female connector housing has the same structure, its explanation is omitted.

The functions of the ceiling and the shield are exactly the same as those in the first embodiment, and the description thereof will be omitted.

[Effect of device]

As described above, according to the present invention, since the entire connector system is itself shielded, not only is the structure extremely compact, but also when the female and male connector housings are fitted together, the female and male terminals are joined together. The part is in a completely formed waterproof space, and it is characterized in that the effect of waterproofing and shielding is not impaired even if external force is applied.

Also, don't miss the fact that it can be bent freely as a harness.

[Brief description of drawings]

1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view, FIG. 3 is an exploded perspective view of the second embodiment, FIG. 4 is a perspective view of a conventional example, and FIG. It is a longitudinal cross-sectional view of a conventional example. A ... Male housing, B ... Female housing, C ... Cover box, D ... Shielded electric wire, E ... Coiled connecting tube, 1 ... Braided wire, 2 ... Lead wire, 3,15 ... Socket, 4 ... Waterproof plug, 5 ...
Core wire, 6 ... Female terminal, 6a ... Male terminal, 7,11, 17 ... Metal plate, 8 ... Convex portion, 9 ... Recessed portion, 10 ... Conductive gel sheet, 12 ...
Packing, 13 ... Cover box, 14 ... Coil-shaped connecting tube.

Claims (2)

[Scope of utility model registration request] 1. A shield structure for a connector connected to a shielded electric wire, wherein a terminal is provided at the end of a lead wire, and a coil-shaped conductive connecting tube for holding the lead wire has conductivity on its outer skin. Placed at the end of the connector,
The inside of the cover box that integrally holds the lead wire is filled with a conductive gel, one end of the cover box is connected to the braided wire of the shielded electric wire, and the other end is connected to the coiled connecting cylinder. Shield structure for connectors. 2. A connector having conductivity on the skin holding each lead wire and a cover box connected to the braided wire are connected by a coil-shaped conductive connecting tube in which each lead wire is integrally wound. A shield structure for a connector according to claim 1, wherein