JPH02155120A - Routing structure of convergent wire harness - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a technique for routing a wire harness to a structure such as an engine room of a vehicle that has a large number of electrical components.

[Conventional technology]

The engine compartment of a car contains loads such as the engine's ignition system, headlights, wiper motor, etc.
A large number of auxiliary equipment such as electrical connection boxes and switches (hereinafter collectively referred to as "electrical components") are installed in a concentrated manner.

Conventionally, as shown in Figure 5, the electrical wiring for these electrical components was carried out by placing a main wire harness a along the inner wall of body b, and then extending a large number of branch wires from it and installing them at the terminals of the branch wires. This was done by connecting the connector C that was installed and each electrical component (not shown).

Therefore, it is necessary to match the wire harness a to the three-dimensional shape along the inner wall of the body b, and a molded protector has been used for this purpose. In addition to the above-mentioned protector, a corrugated tube or the like is used to protect the wire harness from contact wear with other articles.

[Problem to be solved by the invention]

However, in the above-mentioned wiring structure, in addition to the original wiring work, it is also necessary to attach molded protectors and corrugated tubes. Furthermore, these operations often have to be carried out in narrow spaces that are difficult for workers to reach, resulting in poor work efficiency and increased costs.

The present invention has been made in view of the above-mentioned facts, and an object of the present invention is to provide a wiring structure that improves workability when wiring a bundled wire harness to a structure.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a wire harness having a plurality of branch lines arranged in a structure, and connectors provided at the terminals of the branch lines connected to various terminals in the structure. In the wiring structure of a convergent wire harness that is connected to an electrical component, a housing groove is formed in the structure to follow the wiring shape of the wire harness, and a terminal portion of a branch line extends into the housing groove. The structure has a slit formed therein.

Alternatively, a portion of the wire harness other than the branch end is integrally molded with synthetic resin to match the wiring shape, and is supported by the structure.

[For production]

By feeding and inserting the bundled wire harness from an easy-to-work position in the accommodation groove formed in the structure, the wire harness can be routed in a narrow place or a place that is hard to reach. Moreover, by storing the wire harness in the housing groove, the wiring shape can be maintained, and a molded protector and a corrugated tube are not required. On the other hand, the branch line extends freely from the slit formed in the housing groove to the outside of the groove. Therefore, the connector provided at the terminal of the branch line can be easily connected to the electrical equipment in the structure even if the connector is slightly misaligned.

As a wiring structure different from the above, if the wire harness is molded to match the wiring shape and fixed to the structure by means such as clamping or adhesive, the wiring shape can be maintained even without a housing groove. Thereafter, the connector provided at the end of the branch line and the electrical equipment inside the structure are connected in the same manner as when using the accommodation groove. Since the end portion of the branch line is not molded, it can swing freely, and slight misalignment with the electrical component side connector will not be a problem.

〔Example〕

The present invention will be explained in detail below with reference to the drawings.

Figure 1 shows the appearance of the present invention, l is a convergent wire harness,
2 is a structure, and 3 is a housing groove.

The bundled wire harness 1 includes a main line portion 1a, a plurality of branch lines 1b, and a connector IC provided at the terminal of each branch line. As the bundled wire harness 1, various types can be used, such as a stranded wire, a coated single wire, a printed wiring board, or a laminate thereof.

The structure 2 can be used for a wide variety of things, such as various control boxes, as long as it accommodates a large number of electrical components, but in the embodiment of the present invention, a vehicle body, in particular, an engine compartment is illustrated. .

The accommodation groove 3 accommodates and protects the wire harness in place of the conventional molded protector or corrugated tube.
A part or most of it is formed in close contact with the inner circumferential wall of the structure 2 so as to be supported by the structure 2. Further, even when a flat wire harness is used, the accommodation groove 3 is desirably formed on substantially one plane without three-dimensional bending in order to facilitate its bending. Such a planar wiring structure is suitable for automating the wiring harness assembly work. The slit 3b is formed in the side wall 3a of the housing groove 3, and each branch line 1b of the wire harness 1 is provided with a slit 3b.
It is intended to extend the

To route the wire harness, first, the wire harness 1 is inserted into the housing groove 3 from a position where the work is easy.

In hard-to-reach places or narrow places, the wire harness l can be routed by sliding it inside the housing groove 3. The positioning of the wire harness is done by inserting each branch line tb through each line 1-3b.

FIG. 2 shows a state in which the bundled wire harness 1 is accommodated in the accommodation groove 3. Thereafter, each connector IC of the branch line terminal is fitted and connected to each electrical component (not shown) in the structure 2. At this time, the terminal portion of each branch line 1b also extends from each slit 3b, so that the connector IC can be moved forward, backward, left and right, depending on the flexibility of the branch line.
It can move up and down to some extent, swing, etc., and has flexibility in connection with electrical equipment.

After the wire harness 1 is accommodated in the accommodation groove 3, the cover 4 is attached as necessary. For example, since the structure 2 in this embodiment is an engine room as described above,
Waterproofing is required. Therefore, the open portion of the storage groove 3 is sealed with a cover 4 made of a water-resistant and elastic material such as rubber.

FIG. 3 shows details of the housing groove 3 and the cover 4. The accommodation groove 3 has a U-shaped cross section and accommodates and protects the wire harness 1. A slit 3b for a branch line is formed in one side wall 3a of the accommodation a3. Further, a cushioning material 3c made of foamed rubber or the like is partially adhesively fixed inside to prevent the wire harness 1 from rubbing or vibrating within the housing groove 3 and generating noise.

The cover 4 has grooves 4a formed on both sides thereof into which the side walls 3a are inserted. Although not shown, a cushioning material similar to that of 3c is attached to the cover 4 as needed.

FIG. 4 shows another embodiment of the present invention, which is arranged according to the wiring shape.
A bundled wire harness 5 integrally molded from synthetic resin is shown. According to this embodiment, there is no need to form the housing groove 3 (see FIG. 1) in the structure 2. The wire harness 5 is formed to match the shape of the wiring position of the structure 2, and is supported on the structure 2 by means such as a clamp (not shown) or adhesive. Further, like the housing groove 3 described above, in order to facilitate bending of the wire harness, it may be formed planarly without three-dimensional bending. Such a planar wiring structure is suitable for automating the wiring harness assembly work.

The terminal portions 5b of each branch line branching from the main line 5a are not molded, so the connectors 5C fixed to each terminal can move and swing back and forth and left and right, as described above. There is.

〔Effect of the invention〕

As explained above, according to the present invention, it becomes easy to wire the wire harness to the structure, and there is no need to work in a narrow place. Additionally, molded protectors and corrugated tubes are no longer required, reducing total work time and improving productivity.

[Brief explanation of the drawing]

Figure 1 shows an example of the wiring structure for a convergent wire harness, and is an exploded perspective view when the convergent wire harness is routed in the engine compartment of a car. Figure 2 shows a state in which the cover is attached after the wire harness is housed. FIG. 3 is an exploded perspective view showing details of the housing groove and cover. FIG. 4 is a perspective view of a molded wire harness in another embodiment of the wiring structure of the convergent wire harness. FIG. 5 is a perspective view of the wiring structure of a conventional bundled wire harness. 1.5... Focused wire harness, 1b, 5b...
Branch, lc, 5c...connector, 2...structure,
3...Accommodating groove, 3b...Slit, 4...Cover Patent applicant Yazaki Sogyo Co., Ltd. Figure 4 Figure 4

Claims (5)

[Claims] (1) In a convergent wire harness wiring structure in which a wire harness having a plurality of branch lines is routed in a structure, and connectors provided at the terminals of the branch lines are connected to various electrical components in the structure, A convergent wire harness wiring structure characterized in that a housing groove that follows the wiring shape of the wire harness is formed in the structure, and a slit from which an end portion of the branch line extends is formed in the housing groove. . (2) The convergent wire harness wiring structure according to claim 1, characterized in that the housing groove is provided with a cover that covers the open portion thereof. (3) In a convergent wire harness wiring structure in which a wire harness having a plurality of branch lines is routed to a structure, and connectors provided at the terminals of the branch lines are connected to various electrical components within the structure, A wiring structure for a convergent wire harness, characterized in that a portion of the wire harness other than a branch end is integrally molded with synthetic resin to match the wiring shape, and is supported on the structure. (4) The convergent wire harness wiring structure according to any one of claims 1 to 3, wherein the structure is an engine room of a vehicle. (5) The convergent wire harness wiring structure according to any one of claims 1 to 4, characterized in that at least the trunk portion is wired in a planar manner.