JPH11242973A - Connection structure between valve socket and electric wire - Google Patents

Abstract

(57) [Summary] [Problem] To reduce the number of parts. SOLUTION: A core wire 16 exposed by stripping a resin coating 17 of an electric wire 15 is fixed by winding it around a rib 12, and a contact portion 24D of a valve socket 20 is fixed to the core wire 16.
Was brought into direct contact. Since no connection terminal is required between the valve socket and the electric wire, the number of parts can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a valve socket and an electric wire.

[0002]

2. Description of the Related Art A rear combination lamp for an automobile includes a plate-shaped body, a plurality of bulb sockets attached to the body, and electric wires routed to the body and connected to the bulb socket. As means for connecting the valve socket and the electric wire, a conventional method is disclosed in
No. 231814. In this method, a connection terminal is attached to a body, an electric wire is connected to the connection terminal by pressure welding or the like, and a contact portion of the valve socket is attached to the body so that the contact portion contacts the connection terminal.

[0003]

The above-mentioned conventional connection structure has a drawback that the number of parts is large and the number of assembly steps is large because a connection terminal is required between the electric wire and the valve socket. The present invention has been made in view of the above circumstances, and aims to reduce the number of parts.

[0004]

According to a first aspect of the present invention, there is provided a connection structure for attaching a valve socket to a body, arranging an electric wire, and connecting the valve socket to the electric wire. The core wire exposed by removing the coating was fixed to the body, and the contact portion of the valve socket was brought into contact with the core wire.

According to a second aspect of the present invention, in the first aspect, a rib is provided on the body, and the core is fixed by winding the core wire around the rib. According to a third aspect of the present invention, in the second aspect, a retaining portion is formed so as to protrude outward from the protruding end of the rib.

[0006]

<Operation and Effect of the Invention><Invention of claim 1> Since no connection terminal is required between the electric wire and the valve socket, the number of parts and the number of assembling steps can be reduced.

<Invention of Claim 2> Since the core wire is wound around the rib, there is no possibility that the core wire will be displaced even if a tensile force acts on the electric wire, and therefore the contact reliability with the valve socket is improved. <Invention of claim 3> Since the retaining portion is formed on the rib, the core wire does not come off from the rib even when a force in the direction of the protruding end of the rib acts on the electric wire, and the contact reliability with the valve socket is improved. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment A first embodiment of the present invention will be described below with reference to FIGS. The body 10 has a plate shape made of resin and is used, for example, as a back cover of a rear combination lamp of an automobile. Circular mounting holes 11 are formed at predetermined plural locations (only one location is shown in the present embodiment) of the body 10,
Here, the valve socket 20 is attached in a penetrating state. On the rear surface of the body 10 (one surface in FIG. 1, the surface shown in FIG. 2), four ribs 12 are formed at positions slightly shifted outward from the edge of the mounting hole 11. The four ribs 12 are arranged at a 90 ° pitch on one circumference concentric with the mounting hole 11. Each rib 12 protrudes in an oval column shape, and its long axis is directed parallel to the tangential direction of the mounting hole 11. A pair of retaining portions 13 are formed at the protruding end of the rib 12 so as to protrude from the parallel straight edge toward the outer peripheral side.

An electric wire 15 routed along the rear surface of the body 10 is mounted on the rib 12. That is, the electric wire 15
Is a core wire 16 made of a metal stranded wire covered with a resin coating 17, and a region corresponding to the rib 12 in the wiring route is peeled off the resin coating 17 over a predetermined length to form the core wire 16. The exposed core wire 16 is tightly wound around the outer periphery of the rib 12 a plurality of times. The wires 15 on both sides of the ribs 12 are kept in tension by being fitted into grooves (not shown) or hooks, thereby preventing the core wires 16 wound around the ribs 12 from being loosened. Further, since the retaining portion 13 is formed at the projecting end of the rib 12, the core wire 16 does not come off from the projecting end of the rib 12.

The valve socket 20 includes a resin holding member 21, a resin fitting member 22 combined with a rear end of the holding member 21, a wedge base valve 23, and a plurality of terminal fittings 24. The holding member 21 has a holding recess 21A at the front end for housing and holding the wedge base valve 23. The elastic contact piece 24A of the terminal fitting 24 faces the holding recess 21A, and the wedge base valve 23 holds the wedge base valve 23. When mounted in the recess 21A, the contact leg 23A of the wedge base valve 23 and the elastic contact piece 24A elastically contact. The terminal fitting 24 has a tab 24B protruding on the side opposite to the elastic contact piece 24A, and an electric wire connection portion 24C extending from the base end of the tab 24B to the outer peripheral side. Tab 2
4B penetrates the fitting member 22 united with the holding member 21 and projects into the fitting tubular portion 22A.
When a connector of a wire harness (not shown) is fitted to A, it is fitted and connected to a female terminal fitting (not shown) of the connector. The electric wire connection portion 24C passes through the gap between the combined holding member 21 and the fitting member 22, and protrudes from the outer periphery of the flange portion 22B of the fitting member 22. 24D. This contact portion 24D is 90
°, and cantilevered in a counterclockwise direction as viewed from the rear side, and can be elastically bent. The distance from the axis of the valve socket 20 to the projection 24E at the tip of the contact portion 24D is the same as that of the mounting hole 1 described above.
The distance is set to be slightly larger than the distance from the center of 1 to the core wire 16 wound around the rib 12.

When the valve socket 20 is mounted on the body 10, the valve socket 20 is first passed through the mounting hole 11 from the rear side of the body 10, and
Is fitted into the mounting hole 11 and the fitting member 2
The second flange portion 22B is brought into contact with the rear surface of the hole edge of the mounting hole 11, and in this state, the entire valve socket 20 is rotated clockwise in FIG. Then, the valve socket 20 is held non-movably with respect to the body 10 by well-known holding means (not shown). While rotating the valve socket 20, the contact portion 24D extending from the outer periphery of the flange portion 22B receives the core wire 16 wound around the rib 12.
When the valve socket 20 is held at a predetermined position, the protrusion 24E at the tip of the contact portion 24D contacts the core wire 16. A predetermined contact pressure is secured between the projection 24E and the core wire 16 by the elastic restoring force of the contact portion 24D.

As described above, in the present embodiment, when the valve socket 20 is connected to the electric wire 15, the contact portion 24D of the valve socket 20 and the core wire 16 of the electric wire 15 are brought into direct contact. The connection terminal interposed between the valve socket and the electric wire is not required, and the number of parts is reduced. Further, in the connection portion between the electric wire 15 and the valve socket 20, the electric wire 15 is closer to the valve socket 20 by the absence of the connection terminal compared to the related art. This is valve socket 2
Since this means that there is a large space margin around 0, the degree of design freedom in arranging the valve socket 20 and arranging the electric wire 15 is increased. Furthermore, core wire 1
The body 1 is wound around the rib 12 a plurality of times.
Therefore, even if a tensile force acts on the electric wire 15 in the axial direction, the core wire 16 does not shift and the resin coating 17 does not come into contact with the contact portion 24D or loosen.
The contact reliability with 0 is high. Further, since the retaining portion 13 is formed at the protruding end of the rib 12, the rib 15 is attached to the electric wire 15.
2. Even if a pressing force or a pulling force in the direction of the protruding end of the
6 does not come off from the rib 12 and the valve socket 2
The improvement of the contact reliability with 0 is realized.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) In the above embodiment, the core wire is wrapped around the rib as a means for fixing the core wire. However, according to the present invention, the core wire is arranged along the surface of the plate, and both sides of the contact portion with the valve socket are fixed to the plate. Is also good.

(2) In the above embodiment, the contact portion of the valve socket is arranged on the outer peripheral surface of the flange portion. However, according to the present invention, the contact portion may be arranged on the end surface of the flange of the valve socket. (3) In the above embodiment, the case of the 4-pole type has been described, but the present invention can also be applied to the case where the number of poles is 3 or less or 5 or more. (4) In the above embodiment, the retaining portion having an increased diameter is formed as the core wire retaining means. However, according to the present invention, for example, a groove is formed on the surface of the rib opposite to the valve socket, and the core wire is formed there. It may be fitted.

(5) In the above embodiment, the valve socket is mounted on the body while rotating the valve socket. However, according to the present invention, the present invention can be applied to a valve socket mounted without rotating the valve socket. (6) In the above embodiment, the rib is formed integrally with the body, but according to the present invention, a separately formed rib may be attached to the body. In this case, the material of the rib is not limited to resin but may be metal.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment.

FIG. 2 is a rear view of the first embodiment;

FIG. 3 is a partially enlarged perspective view showing a state in which a core wire is wound around a rib in the first embodiment.

FIG. 4 is a partially enlarged rear view showing a connection portion between the valve socket and the electric wire according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Body 12 ... Rib 13 ... Prevention part 15 ... Electric wire 16 ... Core wire 17 ... Resin coating 20 ... Valve socket 24D ... Contact part

Claims (3)

[Claims] 1. A connection structure for attaching a valve socket to a body, arranging an electric wire, and connecting the valve socket to the electric wire, wherein the core wire exposing and exposing a resin coating of the electric wire is connected to the body. And a contact portion of the valve socket is brought into contact with a core wire of the valve socket. 2. The connection structure between a valve socket and an electric wire according to claim 1, wherein a rib is provided on the body, and the rib is fixed by winding the core wire around the rib. 3. A connection structure between a valve socket and an electric wire according to claim 2, wherein a retaining portion is formed at a projecting end of said rib so as to project outward.