JP2592651Y2 - Cover for shield connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal cover for a shield connector for a shield wire used in an electronic control device of an automobile and the like, and to a terminal treatment by connecting a shield portion of the shield wire to the metal cover. ).

[0002]

2. Description of the Related Art Conventionally, when this kind of shielded wire is terminated by connecting it to a metal cover for a shield connector, as shown in FIGS. The shield wire 2 is exposed at a predetermined length from the tip of the outer cover 3, and the core wire 1 is exposed from the tip of the shield wire 2. Further, the distal end of the core wire 1 is cut off to expose the core wire, an electric wire crimping terminal (not shown) is crimped to the distal end of the core wire 1, and these terminals are mounted on the connector 5.

A metal cover 6 for accommodating a connector 5 connected to the shield wire 4 is provided with a barrel portion 6a for crimping the shield wire 2 to which the shield wire 4 is exposed, and the barrel portion 6a is shielded. The crimping and crimping are performed on the outer conductor 2 to connect the shield conductor 2 to the ground. Although not shown in FIG. 7, the upper opening of the cover 6 is closed by a separate cover.

[0004]

In the above-described conventional method of processing the end of a shielded wire, since it is necessary to expose the shield portion from the outer end of the shield wire, the outer sheath and the shield portion are separately cut off. There must be.
Further, as described above, the shield wire also requires a step of peeling the core wire to expose the core wire from the tip of the core wire, and thus has a drawback that the number of processing steps is increased. In addition, since the shield conductor is made of a steel wire, it is not easy to cut only the shield conductor.

Further, as described above, in the method of crimping the barrel formed on the cover to the shield conductor,
If a gap is formed between the end surface of the barrel portion at the tip of the cover and the outer skin, the shielding effect is reduced, so it is necessary to align the barrel end surface and the outer skin end surface so that they just come into contact with each other. Rather, gaps are likely to occur. In addition, when the end of the barrel is crimped to the outer skin, the barrel and the shield conductor are not securely crimped, resulting in poor connection.

The present invention has been made in view of the above-mentioned problems, and the productivity is improved by simultaneous cutting by setting the outer surface of the shield wire and the distal end position of the shield portion conductive wire to the same position. Therefore, the connection between the cover and the conducting wire of the shield part can be reliably performed without impairing the structure.

[0007]

In order to achieve the above object, the present invention provides a metal cover for housing a connector, the cover having side walls bent from both sides of a substrate, and being sandwiched between the side walls. The terminal portion of the connector and the shielded wire is accommodated in the accommodating concave portion, and at the rear end of the side wall portion, a barrel portion for crimping on the outer skin of the shielded wire is provided,
A portion extending from the upper end surface of the side wall portion in front of one barrel portion is bent substantially in parallel along the inner surface of the accommodation recess, and a cover is provided substantially in parallel with the barrel portion from the tip of the extended portion with a gap therebetween. A connection piece having a further extended shape is provided on the rear end side, from the tip of the shield part conductor at the same position as the outer end face of the shield wire accommodated in the accommodation recess of the cover,
An object of the present invention is to provide a cover for a shield connector in which the connection pieces are connected by being inserted in the axial direction.

The connecting piece is bent in an arc shape along the outer peripheral surface of the core wire, and is terminated at the end of the barrel, that is, at the end of the barrel.
Preferably, it is positioned to the end of the cover. still,
It goes without saying that it may be protruded from the end of the cover.

On the upper surface of the housing recess at the upper opening of the cover, an upper cover integrally formed by a separate member or a hinge connection or the like is covered after the connector is housed, and the connector is sealed inside the cover to provide a shielding effect. I'm trying.

[0010]

As described above, in the shielded connector cover of the present invention, the connection piece integrally formed on the cover is inserted between the shielded conductor of the shielded wire and the core wire in the axial direction of the shielded wire. Therefore, it is not necessary to expose the shield part conducting wire from the outer sheath, and therefore, the shield part conducting wire and the outer casing can be cut at the same position, thereby enabling simultaneous cutting.

Further, since the outer cover of the shield wire is crimped by the barrel portion of the cover, the conductive wire of the shield portion is not exposed to the outside of the cover, and the shield effect is not impaired. Furthermore, the connection between the shield conductor and the metal cover is performed by inserting a connection piece between the shield conductor and the core wire, regardless of the crimping of the barrel, so that a reliable ground connection is made. Can be done.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a cover 10 for a shielded connector of the present invention is formed by bending a metal plate punched into a required shape and forming
The side walls 12 and 13 are bent on the left and right sides of the substrate, and the side walls 12 and 13 and the substrate 11 form an accommodation recess 14 having a concave cross section. As shown in the drawing, the accommodation recess 14 has a wide width on the front side for accommodating the connector, a narrow width on the rear side slightly larger than the outer diameter of the shield wire, and a narrow width from the front end side to the rear end side. It is inclined to become.

The rear ends of the side walls 12 and 13 are shown in FIG.
Are provided with barrel portions 15 and 16 having a predetermined length L1 which are caulked and crimped to the outer cover 3 of the shielded wire 4 shown in FIG. Further, the one side wall portion 12 is provided at a position forward of a predetermined length L2 from the barrel portion 15, and is provided with an accommodation recess 14 from an upper end of the side wall portion 12.
A connection piece 18 extending to the rear end position of the barrel portion 15 is provided via the connection portion 17 bent to the side.

The connection piece 18 has a gap S between the side wall portion 12 and the substrate portion 11 such that the outer cover 3 of the shield wire 4 and the shield portion conductive wire 2 can be inserted.
The core wire 1 is curved in an arc shape along the outer peripheral surface.

Further, as described above, the connecting piece 18 is formed by bending from the front position with a required length L2 from the barrel portion 15, and has a length L3 of the connecting piece 18. By increasing the length of 18, the contact area with the shield part conducting wire 2 is increased.

Since the cover 10 has an upper surface opening, as shown in FIG.
And a closed space is formed by the cover 10 and the cover 20. The rear end of the upper cover 20 has a barrel portion 1 crimped to the outer cover 3 of the shield wire 4 as shown in the figure.
Although they are set so as to be in contact with the front end surfaces of the barrels 5 and 16, the barrels 15 and 16 may be formed so as to cover them.
The upper cover 20 is fixed to the cover 1 by a stopper (not shown).
Fixed to 0.

By using the cover 10, the shield wire is formed as shown in FIG.
Can be made at the same position, and are cut simultaneously. That is,
The core wire 1 is exposed from the same distal end surface of the outer cover 3 and the shield part conducting wire 2. As described above, the tip of the core wire 1 is further peeled off and the crimp terminal is crimped, and the crimp terminal is attached to the connector 5.

Next, steps from connection of the shield wire 4 to the connector 5 to attachment of the cover 10 will be described with reference to FIG. As described above, the shield wire 4 cuts the outer sheath 3 and the shield portion conductive wire 2 at the same time, exposes the core wire 1 from the same distal end surface, and further peels and exposes the distal end of the core wire 1.

Terminals 21 are crimped to the ends of the core wire 1, and these terminals 21 are inserted into the male and female connectors 5, respectively, and the connectors 5 are connected to the shielded wires 4.

The connector 5 is inserted into the cover 10, and the core wire 1 connected to the connector 5, the shield conductor 2, and the tip of the outer cover 3 are also inserted into the cover 10.

At the time of insertion, the connection piece 18 is inserted between the shield wire 2 and the core wire 1 in the axial direction of the shield wire from the distal end surface of the shield wire 2. The insertion of the shield wire 4 is stopped at a position where the distal end surfaces of the shield portion conductive wire 2 and the outer cover 3 are in contact with the connecting portion 17.

Next, the barrel portions 15 and 16 are crimped to the outer peripheral surface of the outer cover 3 to be brought into the state shown in FIG. In this state, the upper cover 20 is put on the cover 10 and fixed to each other.

As shown in FIG. 5, the connection between the connection piece 18 and the shield conductor 2 is, as shown in FIG. 5, the outer cover 3 and the shield conductor 2 are caulked and crimped by the barrel parts 15 and 16, so that the shield conductor 2 is It is pressed by the connecting piece 18 and reliable connection can be achieved. In addition, since the length of the connection piece 18 is considerably long, the connection area is large, and the occurrence of poor connection can be prevented.

In the above embodiment, the connection piece 18 is inserted between the shield wire 2 and the core wire 1. However, the connection piece 18 may be inserted between the shield wire 2 and the outer cover 3. May be configured so as to contact the shield part conducting wire 2.

[0025]

As is apparent from the above description, according to the present invention, the shield connector cover is provided with a connection piece for connecting to the shield conductor, and the shield is connected to the shield wire so that the connection piece contacts the shield conductor. Since it is configured to be inserted in the direction, there is no need to expose the shield part conducting wire from the outer cover. Therefore, it is possible to cut the shield portion conductive wire and the outer skin at the same time and to cut the shield wire at the same time, thereby reducing the number of steps of cutting the shield wire.

Further, since the outer sheath of the shield wire is caulked and crimped by the barrel portion of the cover, the length of the barrel portion does not require much dimensional accuracy. In addition, since the outer cover is covered by the cover, there are various advantages such as an improved shielding effect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a terminal treatment of a shield wire used in the present invention.

FIG. 3 is a perspective view showing a state where a barrel portion of a cover is crimped to a shielded wire.

FIG. 4 is a view showing a process of connecting a shield wire and a shield connector cover.

FIG. 5 is a sectional view taken along line II of FIG. 3;

FIG. 6 is a schematic diagram showing a conventional shielded wire termination process.

FIG. 7 is a perspective view showing a conventional method of connecting a shield wire and a shield cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Core wire 2 Shield part conducting wire 3 Outer shell 4 Shield wire 5 Connector 10 Cover for shield connector 11 Substrate part 12,13 Side wall part 14 Housing recessed part 15,16 Barrel part 17 Connecting part 18 Connection piece

Claims (1)

(57) [Scope of request for utility model registration] [Claim 1] In the metal cover for accommodating the connector, the cover is accommodated a terminal portion of the side walls portion that is refracted from both sides of the base plate portion, a connector in a recess for accommodating sandwiched between the side wall portion and the shielded cable At the rear end of the side wall portion, a barrel portion for crimping the outer surface of the shielded wire is provided, and a side wall in front of one barrel portion is provided.
Along the inner surface of the recess for storage
Bend almost in parallel with the tip of the extended part
To the rear end of the cover almost parallel to the barrel with a gap
A connection piece having an extended shape is provided, and the connection piece is inserted in the axial direction from the tip of the shield part conductor at the same position as the outer end face of the shield wire housed in the housing recess of the cover, and connected. Cover for shield connector.