JPH11176504A - Earth terminal for car body connection and car body connecting structure of earth terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the spots to take body earth by connecting earth terminals at the places other than the earth connecting holes provided with nuts. SOLUTION: Another side of a board part 11 providing pressure bonding barrels 12, 13 for electric wires at one side is bent in almost right angle, and an electric contact part 14 providing a bolt hole 15 at the end of bend is formed, and a nut 16 is fixed by welding at the circumference of the bolt hole. The electric wire connected to this earth terminal 10 is passed from the surface side of a car body to the rear side through a first hoel 20 at the place where two holes of a first and a second hole 20, 21 drilled at the near position of a car body 2 side are located, and the board part 11 of the earth terminal 10 is inserted and the bolt hole 15 at the electric contact part 14 is located at the rear side Y of the car body through the second hole 21, and a bolt 18 is fixed by tightening to the nut 16 from the surface side x of the car body through the second hole 21 and the bolt hole 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground terminal for connecting a vehicle body and a structure for connecting the ground terminal to the vehicle body.

[0002]

2. Description of the Related Art As shown in FIG. 5, a wire terminal of a wire w is connected to a ground terminal 1 by crimping, as shown in FIG. The ground terminal 1 has a substrate portion 1c protruding from a part of the outer periphery of an annular electric contact portion 1b having a bolt hole 1a at the center.
A pair of core wire barrels 1d and insulating coating barrels 1e are protruded from both sides in the width direction of c, respectively. The wire w is crimped to the insulating coating.

The ground terminal 1 is, as shown in FIG.
Mounting holes 2 pre-drilled in the body 2 of the car
a, the bolt 3 is inserted in this state, and the mounting hole 2a is
Is screwed into a nut 4 which is welded and fixed to the periphery of the nut.

The operator attaches the ground terminal 1 to the vehicle body 2 by holding the electric wire w with one hand (left hand) and positioning the bolt hole 1a of the ground terminal 1 in the mounting hole 2a on the vehicle body side. In this state, the other hand (right hand) is used to hold and fix an impact wrench (not shown) in which the bolt 3 is set.

[0005]

In the case of the above-mentioned conventional construction, the position where the body ground is taken by using the ground terminal 1 is determined by setting a mounting hole 2a in the vehicle body 2 side in advance, and At the position where the nut 4 is welded along the periphery of the mounting hole 2a. That is, when arranging the wire harness to the automobile, the worker arranges the nut 4 along the periphery of the mounting hole on the back side of the vehicle body 2,
It has a structure that cannot be normally performed.

As described above, when the body ground position by the ground terminal 1 is defined, it is necessary to extend the electric wire connected to the ground terminal 1 to the position of the mounting hole on the vehicle body side, which is a restriction on the design of the wire harness. In addition, there are problems such as an increase in the amount of electric wires.

Conventionally, Japanese Unexamined Utility Model Publication No. Sho 61-53869 discloses a ground terminal 1 as shown in FIGS.
A terminal in which a nut 4 is integrally fixed to the annular electric contact portion 1b along the periphery of the bolt hole 1a has been proposed. Since the nut 4 is provided integrally with the terminal, it is only necessary to screw the bolt 3 into the nut 4.
As shown in FIG. 7 (B), the arrangement position of the ground terminal 1 connected to the electric wire w and the insertion position of the bolt 3 are opposed to each other with the vehicle body 2 interposed therebetween. . That is, wires are routed on the surface side of the vehicle body 2,
In many cases, the ground terminal 1 is positioned on the front side of the vehicle body and the bolt 3 is screwed in from the front side. In most cases, the bolt 3 cannot be screwed in from the rear side of the vehicle body 2.

The present invention has been made in view of the above-mentioned problems, and utilizes a hole drilled in a vehicle body, for example, a hole for mounting a clamp, the hole being used for ground connection, and a nut previously welded and fixed. Even if it is not, use the ground terminal as a hole that can be connected to bolts,
It is an object to design the wiring harness to be advantageous.

In order to solve the above-mentioned problem, the present invention is directed to the first aspect of the present invention, wherein the other side of the substrate portion provided with a wire crimping barrel on one side is bent substantially at a right angle, and a bolt is attached to the tip of the bent portion. A ground terminal is provided, wherein an electrical contact portion having a hole is formed, and a nut is fixedly welded to a periphery of the bolt hole.

According to a second aspect of the present invention, the ground terminal according to the first aspect is crimp-connected to an electric wire terminal for an earth circuit of the wire harness, while being drilled at a close position on the vehicle body side. At the position where the first and second two holes are,
The board portion of the ground terminal is inserted through the first hole from the front side to the back side of the vehicle body, and the bolt hole of the bent electric contact portion is communicated with the second hole to be positioned on the rear side of the vehicle body. The present invention also provides a vehicle body connection structure of a ground terminal in which a bolt is passed through the second hole and the bolt hole from the surface side of the vehicle body and is fastened and fixed to the nut.

As the first hole and the second hole of the vehicle body, a clamp mounting hole for locking a wire harness, which is formed in a large number at intervals in the vehicle body, can be suitably used. As described above, if the two holes are formed, the ground terminal is fixed using these holes, and the vehicle body and the ground terminal are connected to ground, even if the holes are not the ground mounting holes. I can do it.

Further, according to the present invention, in the above-mentioned claim 1, the outside of the end of the vehicle body is passed from the front side to the rear side of the vehicle body at a position where the hole is provided near the end of the vehicle body. Insert the board portion of the ground terminal described, connect the bolt hole of the bent electric contact portion to the hole close to the end portion and position it on the back side of the vehicle body, and bolt the bolt from the front side of the vehicle body to the hole and There is provided a vehicle body connection structure of a ground terminal which is fixed to the nut by being passed through a bolt hole.

That is, even when the two holes are not in the close position as in the second aspect, if there is one hole close to the end of the vehicle body, the hole passes through the outside of the end of the vehicle body. When the board portion of the ground terminal is inserted, and the bent electrical connection portion is aligned with the hole, the bolt can be tightened from the front side of the vehicle body to fix the ground terminal to the vehicle body.
As a result, the position where the ground terminal can be attached can be further increased.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG.
Is formed by bending a conductive metal plate stamped into a required shape, and the flat plate-shaped substrate portion 11 is bent at a substantially right angle in a substantially central portion as an L shape.

A core barrel 1 having a pair of barrels protruding from one side 11a of the substrate 11 in the width direction is provided.
2 and an insulating coating barrel 1 having a pair of barrels protruding from the tip of the one side portion 11a so as to face each other in the width direction.
3 is provided. The other side portion 11b of the substrate portion 11 is provided with a ring-shaped electric contact portion 14 at a tip portion thereof, and a hollow portion thereof is formed as a bolt hole 15. A nut 16 is fixedly welded to the electric contact portion 15 along the periphery of the bolt hole 15. The nut 16 is projected outward of the L shape.

The ground terminal 10 is connected to the end of the electric wire w by crimping.
1 is caulked and crimped with the core wire barrel 12 and the insulating coating barrel 13 is caulked and crimped to the insulating coating w-2 that is continuous with the exposed core wire w-1.

FIGS. 2 and 3 (A) and 3 (B) show a case where the electric wire w connected to the ground terminal 10 is used as one of electric wires constituting a wire harness to be routed to an automobile and is connected to the body of the automobile. 1 shows a first embodiment in which a body earth is taken.

The vehicle body 2 of the automobile is provided with a number of holes such as clamp holes for attaching a wire harness. As shown in FIG. The terminal 10 is attached. That is, the ground terminal 10 is passed from the electric contact portion 14 through the first hole 20 from the front side (X) to the rear side (Y) of the vehicle body 2, and the bolt hole of the electric contact portion 14 bent from the wire crimping portion. 15 is communicated with the second hole 21 so as to be positioned on the back side (Y) of the vehicle body. In this state, the bolt 18 is fixed to the nut 16 welded to the periphery of the bolt hole 15 through the second hole 21 and the bolt hole 15 from the front side (X) of the vehicle body.

As described above, since the electric contact portion 14 of the ground terminal 10 is bent with respect to the crimp portion with the electric wire and the nut is fixed to the electric contact portion 14, the ground from the front side (X) of the vehicle body 2 is grounded. The terminal 10 can be set to the connection position, and the bolt 18 for fixing the ground terminal can be fastened and fixed from the front side (X).

FIG. 4 shows a second embodiment of the ground terminal connection structure, which is applied to the case where one hole 30 in the vehicle body 2 is located near the end 2b of the vehicle body. That is, the board 11 of the ground terminal 10 is inserted through the outside of the end 2 b of the vehicle body 2, and the bent electrical contact portion 14 of the board 11 is inserted.
The bolt hole 15 is communicated with the hole 30 so as to be positioned on the back side (Y) of the vehicle body. In this state, similarly to the first embodiment, the hole 30 and the bolt hole 1 are set from the front side (X) of the vehicle body 2.
5, a bolt 18 is inserted, and is fastened and fixed to a nut 16 welded to the periphery of the bolt hole 15.

[0021]

As is apparent from the above description, when the ground terminal according to the present invention is used, two holes are provided close to each other in addition to the grounding terminal mounting holes provided with nuts on the vehicle body side. If it is in a position where there is a hole near the end of the vehicle body, the ground terminal can be set from the front side of the vehicle body and the fixing bolt can be tightened, so that the body grounding can be easily performed. Can be taken.

As described above, since the number of places where the body earth can be obtained increases, the design of the wire harness becomes easy, and it is not necessary to extend the electric wire to obtain the body earth, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a ground terminal of the present invention,
(B) is a front view.

FIG. 2 is an exploded perspective view showing a first embodiment of a connection structure between the ground terminal and a vehicle body.

FIGS. 3A and 3B are cross-sectional views illustrating a process of connecting a vehicle body and a ground terminal according to the first embodiment.

FIG. 4 is a sectional view showing a connection structure between a ground terminal and a vehicle body according to a second embodiment.

FIG. 5 is a perspective view showing a conventional ground terminal.

FIG. 6 is a front view showing a conventional connection structure between a ground terminal and a vehicle body.

FIGS. 7A and 7B are diagrams showing another conventional ground terminal.

[Explanation of symbols]

 2 Body 2b End 10 Ground Terminal 11 Board 12 Core Barrel 13 Insulation Barrel 14 Electrical Contact 15 Bolt Hole 16 Nut 18 Bolt 20 First Hole 21 Second Hole 30 Hole

Claims (3)

[Claims] 1. An electric contact part having a bolt hole formed at a tip of a bent part of a bent part of a substrate part provided with a barrel for crimping an electric wire on one side. A ground terminal characterized in that a nut is fixedly welded to the periphery of the hole. 2. The crimping connection of the ground terminal according to claim 1 to a wire terminal for a ground circuit of a wire harness, and the first and second holes formed in close proximity on the vehicle body side.
At the position where the two holes are located, the board portion of the ground terminal is inserted through the first hole from the front side to the back side of the vehicle body, and the bent hole of the electrical contact portion communicates with the second hole. The vehicle body connection structure of a ground terminal, wherein the ground terminal is located on the back side of the vehicle body, and a bolt is passed through the second hole and the bolt hole from the front side of the vehicle body and tightened and fixed to the nut. 3. In a position where there is a hole near the end of the vehicle body,
2. The board portion of the ground terminal according to claim 1, wherein the board portion of the ground terminal is inserted through the outside of the end portion of the vehicle body from the front side to the back side of the vehicle body, and the bolt hole of the bent electric contact portion is close to the end portion. A ground terminal body connecting structure in which a bolt is passed through the hole and the bolt hole from the front side of the vehicle body and fastened and fixed to the nut by positioning the bolt on the rear side of the vehicle body.