JPH07263082A - Shielded connector - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a shield connector that simplifies the conduction between the shield metal shell and the shielded electric wire to improve the workability of the assembling process, and requires a complicated caulking process. It is an object of the present invention to provide a shielded connector that can be reliably and easily connected to a shielded wire without the above. [Structure] A conductive portion 16 having elasticity is provided so as to face an end portion of a metal shell 5 for shielding, and the inner housing 2
The exposed shield part 24 of the shielded electric wire 21 inserted therein is elastically sandwiched by the conducting part 16 so that the metal shell 5 and the shield part 24 of the shielded electric wire are electrically connected to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shielded connector which simplifies conduction between a shielded metal shell mounted in a connector housing and a shielded electric wire to improve workability in an assembling process.

[0002]

2. Description of the Related Art As a conventional shield connector, for example, Japanese Utility Model Laid-Open No. 4-135186 discloses a plug connector P as shown in FIG. The plug connector P is a kind of shield connector that is fitted to the mating receptacle connector R, and has a shield shell b inside the housing a as shown in FIG.
Is attached, and the shell b and the shield wire d of the shielded electric wire with terminal c are connected to shield the housing a.

The shell b and the shield wire d are normally connected to each other by caulking the outside of the shield wire d with a caulking portion e of the shell b. Therefore, the work process of inserting and attaching the shielded electric wire c with a terminal requires a complicated caulking process, resulting in a problem that productivity is significantly reduced.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems, and the connection between the shield metal shell and the shield wire does not require a complicated caulking step, An object of the present invention is to provide a shield connector that can be reliably and easily implemented.

[0005]

In order to achieve the above object, the present invention provides an inner housing for accommodating a terminal, an outer housing surrounding the inner housing, and a shield between the inner housing and the outer housing. A shielded connector comprising a metal shell for
A conductive portion having elasticity is projectingly provided at an end of the metal shell, and the shield portion of the shielded electric wire inserted into the inner housing and the conductive portion are elastically brought into contact with each other so that they are electrically connected to each other. Characterize.

It is preferable that the conductive portion is formed of a plurality of elastic pieces that are integrally projected from the end portion of the metal shell and have the tip portions folded back, and that the elastic pieces sandwich the shield portion of the shielded wire. 2).

[0007]

In the shielded connector of the present invention, since the conductive portion having elasticity is formed at the end of the shield metal shell, the shielded wire connecting portion of the shielded wire connected to the terminal in the inner housing and the conductive portion are formed. It is possible to elastically contact and be electrically connected to each other, and the shield of the housing can be reliably and easily achieved without performing a complicated caulking process.

[0008]

1 is a vertical sectional view showing a male shield connector A and a female shield connector B according to an embodiment of the present invention. As shown in FIG. 2, the shield connector A is formed by integrally forming an outer housing 1 and an inner housing 2 made of synthetic resin via a connecting portion 3 and inserting them between the outer housing 1 and the inner housing 2. A metal shell 5 is inserted into the gap 4 to shield the inside of the inner housing 2.

The outer housing 1 is formed in a cylindrical shape,
On the inner side thereof, on the side of the mating portion with the mating shield connector B, a tubular inner housing 2 is integrally formed in a structure in which it is concentrically coupled with the outer housing 1 by four equally arranged connecting portions 3. ing.

An outer housing 1 is provided between the connecting portions 3.
3, the insertion hole 6 communicating with the insertion gap 4 formed between the inner housing 2 and the inner housing 2 is formed in a circular arc shape in the circumferential direction, and is formed by notching the tip of the metal shell 5. The metal shell 8 which is built in the shield connector B on the mating female side by projecting the projecting portions 7 (see FIG. 4) respectively.
The connecting projections 9 and 9 can be slidably contacted with each other. A hood portion 11 is formed on the fitting portion side of the outer housing 1 via the enlarged diameter portion 10, and the front end portion 1 of the outer housing 12 of the shield connector B on the mating side is formed in the enlarged diameter portion 10.
3 is inserted for fitting.

As shown in FIG. 4, the metal shell 5 has a cylindrical portion 15 formed by bending a conductive metal plate and connecting the edges of the conductive metallic plate to each other with a dovetail joint 14, and is integrally formed from one end of the cylindrical portion 15. Four connecting projections 7 equally spaced from each other, and a conductive portion 16 made of two elastic pieces formed by projecting the other end of the cylindrical portion 15 integrally and oppositely and folding the tip end inward. It consists of and.

The connecting projection 7 is connected to the cylindrical portion 15 and is curved with the same curvature as the cylindrical portion 15.
They are evenly arranged via rectangular slits 17 that are slightly wider. A box-shaped protrusion 18 for preventing play in the insertion gap 4 is provided outside the intermediate portion of the cylindrical portion 15, and the connecting protrusion 7 has a locking piece 19 directed obliquely inward and rearward.
Are formed by cutting and raising. As shown in FIG. 5, the metal shell 5 is inserted into the insertion gap 4 of the outer housing 1, and then the shielded electric wire 21 to which the terminal 20 is connected is inserted into the inner housing 2.

The shielded electric wire 21 has a covered electric wire 22 inside, and the electric wire connecting portion 2 of the terminal 20 is provided at the end of the core wire 22 '.
0a is connected, a part of the outer coating 23 is peeled off, the shield part 24 of the braided shield wire surrounding the covered electric wire 22 is exposed and folded back, and is inserted into the inner housing 2 shown in FIG. Then, the conducting portions 1 of the metal shell 5 facing each other
By inserting the shielded electric wire 21 between the six, as shown in FIG. 1, the shield portion 24 of the shielded electric wire 21 is elastically sandwiched between the conducting portions 16 facing each other, and the metal shell 5 passes through the shielded portion 24 to shield the shielded electric wire. 21 and the inner housing 2 is shielded.

After inserting the shielded electric wire 21, a waterproof rubber plug 25 and a rear holder 26 are fitted into the rear end portion 1a of the outer housing 1 to seal the inside of the outer housing 1.
In the above embodiment, the conducting portion 16 of the metal shell 5
Is formed of two pieces of metal plates facing each other, but the metal plate forming the conducting portion is not limited to two pieces and may be formed of many pieces of metal such as four pieces. It may be formed so that the shield part can be held.

Further, not only the shield metal shell 5 of the male side shield connector A but also the shield metal shell 8 of the female side shield connector B has the same structure as the metal shell 5 described above. Like the shield connector A on the side, the workability of the assembling process of the shielded electric wire can be remarkably improved.

[0016]

In the shielded connector of the present invention, since the conductive portion having elasticity is formed at one end of the shield metal shell, the shielded wire connecting portion of the shielded electric wire to be mounted in the inner housing and the conductive portion are connected to each other. It is possible to make them conductive by simply contacting each other, and it is possible to reliably and easily achieve the shield of the housing without performing a complicated caulking process, which greatly improves the productivity and reliability of the connector assembly work. Have significant advantages.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a shield connector according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an outer housing and an inner housing of the male shield connector of FIG.

FIG. 3 is a front view of the outer housing and the inner housing of FIG.

FIG. 4 is a perspective view showing a metal shell of the male shield connector of FIG. 1.

5 is a vertical cross-sectional view showing a state in which a metal shell is inserted between the outer housing and the inner housing of FIG. 2 and a shield electric wire is inserted.

FIG. 6 is a vertical cross-sectional view showing a conventional shield connector.

7 is a perspective view showing the metal shell of FIG. 6. FIG.

[Explanation of symbols]

 A, B Shield connector 1 Outer housing 2 Inner housing 5 Metal shell 16 Conducting part 20 Terminal 21 Shield wire 24 Shield part

Claims (2)

[Claims] 1. A shield connector comprising an inner housing for accommodating a terminal, an outer housing surrounding the inner housing, and a metal shell for shielding between the inner housing and the outer housing. A conductive portion having elasticity is projected from the end of the metal shell, and the shield portion of the shielded electric wire inserted into the inner housing and the conductive portion are elastically brought into contact with each other so as to be electrically connected to each other. And shielded connector. 2. The conductive part is formed of a plurality of elastic pieces which are integrally projected from the end of the metal shell and whose front end is folded back, and the elastic piece holds the shield part of the shielded electric wire. The shielded connector according to item 1.