JPH0241819Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a protective device for a wire harness, and is particularly useful for improving reliability in the connection between a low-voltage electric wire conductor for an automobile and a press-contact type terminal.

B. Conventional technology and its problems The wiring of the wire harness (wire assembly for automobiles) is
Generally, as shown in Fig. 5, a branch line w is branched out from the middle of the main line W and connected directly to the connector b provided at the load a at the end, or a branch line is connected via a branch connector c. It's on.

Since such a trunk line W has a large number of wires and is quite heavy, it is necessary to protect the straight sections with synthetic resin troughs or cylindrical bodies, and to attach T-shaped support members to the branch sections J. Therefore, they are protected by means such as attaching them to the vehicle body. However, branch lines w branched from the main line W, branch connectors c, etc. come in various forms, such as those that are fixed to the vehicle body or those that are suspended in the air, and are not properly protected. .

Therefore, not only does it take time to install the wire harness and a large installation space is required, but also the connector c is a pressure-contact type terminal for connecting low-voltage wires (a type of terminal in which the wires are press-fitted into a slot). ), there were problems such as the load and tensile force of the wires acting directly on the connected portions, causing loosening and disconnection, resulting in reduced reliability.

The purpose of this invention is to solve the above-mentioned problems, improve productivity by shortening wiring harness installation time and reducing space, and to create wires that can connect with high reliability even in the case of low-voltage wires. To provide protective equipment for harnesses.

C. Means for solving the problem The present invention will be explained based on the drawings. In FIG. A connector 3 for connecting electric wires is detachably fixed to the inner surface of a side wall 2 which is vertically connected to one side thereof by a cassette mechanism 4. 5 is wire harness W
It is a protective cover for the electric wires connected between the connector 3 and the connector 3, and is connected to the upper edge of the side wall 2 by a hinge 5a so as to be openable and closable, and the inner surface of the lower end of the cover front wall 5b has a projection 5c for holding the electric wire. It is installed protrudingly.
Further, a plurality of wire fixing bosses 6 are provided protruding from the intermediate portion of the support plate 1 so as to be located in front of the protective cover 5.

FIG. 2 shows the above-mentioned connector 3 for connecting electric wires,
It is constructed as a pressure contact connector in which a chain-like pressure contact type terminal 8 having a slot 9 for press-fitting electric wires is attached to a housing 7. Moreover, the cassette mechanism 4 is
It is formed of an enclosure wall 10 and a front stopper wall 11 which are orthogonal to the side wall 2 and correspond to the width of the connector 3, and are provided with an insertion frame, and a support plate 1 is provided at the lower end of the enclosure wall 10.
A mounting plate 12 integrally provided with screw holes 13 is provided protruding from the mounting plate.

D. Function During the assembly work of the wire harness W, the branch wires w branched from the middle of the wire harness W are connected in advance to the inlet side of the connector 3, and the branch wires w' directed to each load are connected separately to the outlet side.

Next, open the protective cover 5 of the protective equipment A, fit and fix the electric wire connecting connector 3 into the cassette mechanism 4 consisting of the insertion frame, and connect the branch wire w from the wire harness W and the branch wire w' facing the external load. Divided into,
The wire harness W is placed on the opposite side of the support plate 1 by wiring so as to pass between the fixing bosses 6, respectively.
Next, after closing the protective cover 5, as shown in FIG. 3, the entire body is fixed by wrapping it with tape 14 several times, and is fixed by screwing it to an appropriate location on the vehicle body using the mounting plate 12.

As a result, the branch line w connected to the connector 3
and w' are pressed against and fixed to the front surface of the housing 7 by the protrusion 5c of the cover front wall 5b, so that no direct load is applied to the connection part (insulation type terminal 8), and furthermore, the wire fixing boss 6 Even when the wire is twisted, it remains in a fixed state, which doubles the prevention of loosening and disconnection as was the case in the past.

E. Embodiment FIG. 4 shows another embodiment of the cassette mechanism, in which a flange 15 for insertion is protruded from both sides of the bottom of the housing 7, and a flexible lock arm 16 having a protrusion 16a on the outside of the flange 15 is provided. On the other hand, a locking chamber 18 into which a fitting frame 17 for the collar 15 and a locking arm 16 enter is provided on the side wall 2 of the protective device A, and a locking hole 18a that engages with the protrusion 16a is provided in the chamber 18. be. In this case, by pressing the lock arm 16 against the collar 15, the housing 7 can be easily attached and detached.

In this way, the cassette mechanism of the connector may be of any type as long as it allows the connector to be attached or detached with a single touch without using other parts such as screws.

The above describes an example of a pressure welding connector in which a pressure welding type terminal is attached to a connector for connecting electric wires.
Female and male connectors that connect ordinary female terminals and male terminals can be used in exactly the same manner.

Effects of the invention When the protective equipment of the invention is used, the wire harness, its branch parts, branches and externally connected branch lines (wires), and connectors for connecting the wires are collectively housed and protected. It is possible to improve productivity by reducing installation time and wiring space. In addition, the branch wire (wire) connected to the wire connector is double-locked by the protective cover and the wire fixing boss, eliminating any looseness at the connection and improving the reliability of the electrical connection. can be increased.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the protective equipment of the present invention, Fig. 2 is a perspective view of the connector for connecting electric wires in a separated state,
FIG. 3 is an explanatory diagram of the state of use, FIG. 4 is an explanatory diagram of another embodiment of the cassette mechanism, and FIG. 5 is an explanatory diagram of the wiring state of a conventional wire harness. W... Wire harness, 1... Support plate, 2...
Side wall, 3... Connector for connecting electric wires, 4... Cassette mechanism, 5... Protective cover, 6... Boss for fixing electric wires.

Claims (1)

[Scope of utility model registration request] A side wall 2 is provided on one side of the support plate 1 that supports the wire harness W, and a cassette mechanism 4 for fixing the electric wire connection connector 3 is provided on the inner surface of the side wall 2.
is characterized in that a protective cover 5 for the electric wire w connected between the connector 3 and the wire harness or from the outside to be connected to the connector 3 is attached so as to be openable and closable, and a boss 6 for fixing the electric wire is provided protruding from the support plate 1. Protective equipment for wire harnesses.