JP7264647B2 - wire harness - Google Patents

Description

The present invention relates to wire harnesses. More specifically, it relates to a wire harness in which a plurality of electric wires are routed to a mounting member via protectors.

Conventionally, a wire harness is known that includes a wire bundle as a plurality of wires to be routed to a vehicle as an attachment member, and a molding die as a protector that accommodates the wire bundle and is attached to the vehicle. (See Patent Document 1, for example).

In this wire harness, the wire harness is integrally molded by molding a molding die with resin so as to match the wiring route, housing the wire bundle in the molding die, and injecting molding resin into the molding die and curing it. , the integrally molded wire harness is attached to the vehicle.

JP 2012-248409 A

By the way, in the wire harness as disclosed in Patent Document 1, since a plurality of electric wires and the protector are integrally formed, the weight of the wire harness increases when the number of wires to be routed increases.

For this reason, when attaching the wire harness to the attachment member, the wire harness is heavy, and the attachment work may become difficult, and there is a possibility that the attachment of the wire harness to the attachment member may be deteriorated.

In addition, in the wire harness as disclosed in Patent Document 1, since a plurality of electric wires and the protector are integrally formed, it is easy to add new electric wires or branch electric wires. Branching was not possible, and the degree of freedom in circuit design was reduced.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a wire harness which can be easily attached to a mounting member and which can improve the degree of freedom in circuit design.

The invention according to claim 1 comprises a plurality of electric wires which are routed to a mounting member and which have a main electric wire, and a main protector which accommodates the main electric wire among the plurality of electric wires and is attached to the mounting member via a main mounting portion. and a sub-protector that accommodates sub-wires other than the main wires among the plurality of wires and is attached to the mounting member via a sub-mounting portion.

In this wire harness, the main protector accommodates the main electric wire among the plurality of electric wires and is attached to the mounting member via the main mounting portion, and the sub-electric wire other than the main electric wire among the plurality of electric wires is accommodated via the sub-mounting portion. and a secondary protector attached to the attachment member.

For this reason, when there are many electric wires and their weight increases, the weight can be reduced by dividing the electric wires into main electric wires and auxiliary electric wires and attaching the main protector and the auxiliary protector to the mounting member. A plurality of electric wires can be routed to the mounting member without handling a large member, and the mountability of the wire harness to the mounting member can be improved.

On the other hand, when a new electric wire is added or an electric wire is branched, a main protector containing the main electric wire is attached to the mounting member in advance, and a secondary electric wire that accommodates the new electric wire or the electric wire to be branched is used. By attaching the protector to the attachment member, it is possible to easily add or branch the sub electric wire, thereby improving the degree of freedom in circuit design.

Therefore, in such a wire harness, it is possible to improve the mountability with respect to the mounting member, and to improve the degree of freedom in circuit design.

The invention according to claim 2 is the wire harness according to claim 1, wherein the secondary protector is provided with an opening capable of accommodating the secondary electric wire in a state of being attached to the mounting member. characterized by

In this wire harness, since the secondary protector is provided with an opening capable of accommodating the secondary wire while attached to the mounting member, the secondary wire is accommodated through the opening of the secondary protector attached to the mounting member. Thus, the sub electric wire can be routed to the mounting member.

The invention according to claim 3 is the wire harness according to claim 1 or 2, wherein the secondary protector is disposed so as to overlap with the main protector attached to the attachment member, and the main attachment portion and the secondary protector. A plurality of the sub-mounting portions are provided alternately along the length direction of the electric wire.

In this wire harness, the sub-protector is superimposed on the main protector attached to the mounting member, and a plurality of main-mounting portions and sub-mounting portions are provided alternately along the length of the wire. Therefore, the space for arranging the main protector and the sub protector with respect to the mounting member can be reduced.

The invention according to claim 4 is the wire harness according to any one of claims 1 to 3, wherein the secondary protector has a base portion that can be attached to the mounting member, and can accommodate the secondary electric wire. and an accommodating portion that can be attached to the base portion.

In this wire harness, the sub-protector has a base portion that can be attached to the mounting member, and an accommodating portion that can accommodate the sub-wire and can be attached to the base portion. The wiring of the sub electric wire to the mounting member can be easily performed.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to provide the wire harness which can improve the attachment property with respect to an attachment member, and can improve the degree of freedom of a circuit design.

1 is a schematic diagram of a vehicle to which a wire harness according to an embodiment of the invention is attached; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the wire harness which concerns on 1st Embodiment of this invention. 1 is a plan view of a wire harness according to a first embodiment of the invention; FIG. It is a sectional view of the wire harness concerning a 2nd embodiment of the present invention. FIG. 5 is a plan view of a wire harness according to a second embodiment of the invention; It is sectional drawing of the wire harness which concerns on 3rd Embodiment of this invention. It is a perspective view of the wire harness which concerns on a reference example.

A wire harness according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

(First embodiment)
A first embodiment will be described with reference to FIGS. 1 to 3. FIG.

The wire harness 1 according to the present embodiment includes a plurality of electric wires 7 having a main electric wire 5 routed to the mounting member 3, and a main electric wire 5 among the plurality of electric wires 7, which is housed in the mounting member 1 via the main mounting portion 9. 3 and a sub-protector 17 which accommodates the sub-wires 13 other than the main wires 5 among the plurality of wires 7 and is attached to the mounting member 3 via the sub-mounting portion 15 .

Further, the secondary protector 17 is provided with an opening 19 capable of accommodating the secondary electric wire 13 in a state of being attached to the mounting member 3 .

Here, as shown in FIG. 1 , for example, the wire harness 1 according to the present embodiment electrically connects an electric motor 23 as an electrical component mounted on a vehicle 21 and a battery 25 .

The wire harness 1 has, for example, high-voltage wires that form a positive circuit and a negative circuit, and low-voltage wires that form an optional circuit and a split circuit. 25 side and routed under the floor of the vehicle 21 .

Details of the wire harness 1 will be described below with reference to FIGS. 1 to 3. FIG.

As shown in FIGS. 1 to 3, the wire harness 1 includes a plurality of electric wires 7, a main protector 11 and a sub-protector 17. As shown in FIG.

The plurality of electric wires 7 includes main electric wires 5 and sub electric wires 13 .

The main electric wire 5 is, for example, a high-voltage electric wire that electrically connects the electric motor 23 and the battery 25 and constitutes a positive circuit and a negative circuit.

The sub-cable 13 is, for example, a signal line that transmits information between the electric motor 23 and the battery 25 or between other electrical components, or a branch branched from a main line that electrically connects other electrical components. It consists of optional circuits such as wires and low-voltage wires that make up a split circuit.

When the number of the main wires 5 and the sub-wires 13 is large and the weight thereof increases, or when the sub-wires 13 are added due to the addition of an optional circuit or a split circuit, the main wires 7 , and the sub electric wire 13 and routed under the floor of the vehicle 21 as the mounting member 3 .

A plurality of electric wires 7 composed of such main electric wires 5 and auxiliary electric wires 13 are routed to the mounting member 3 in a state in which the main electric wires 5 are housed in the main protector 11 and the auxiliary electric wires 13 are housed in the auxiliary protector 17. be done.

The main protector 11 is made of an insulating material such as synthetic resin, is molded along a predetermined wiring shape of the vehicle 21, and has a concave cross section so as to accommodate the main electric wire 5 among the plurality of electric wires 7. ing.

The main protector 11 is provided with a plurality of main attachment portions 9 respectively attached to a plurality of main attachment portions 27 provided on the attachment member 3 along the length direction of the electric wire 7 on both sides in the width direction. there is

The main mounting portion 27 of the mounting member 3 is a stud bolt projecting from the mounting member 3 toward the main protector 11 side, and the main mounting portion 9 has a hole through which the main mounting portion 27 is inserted. is provided.

The main protector 11 is attached to the mounting member 3 by fastening nuts 29 to the main mounting portions 27 of the plurality of main mounting portions 9 while the main mounting portions 27 are inserted through the holes.

Such a main protector 11 is arranged on the mounting member 3 with the main electric wire 5 accommodated therein, and is mounted on the mounting member 3 via the main mounting portion 9 .

The secondary protector 17 is made of an insulating material such as synthetic resin, and is molded along a predetermined wiring shape of the vehicle 21 so as to accommodate the secondary wires 13 other than the main wire 5 among the plurality of wires 7. It is formed with a concave cross-section.

The secondary protector 17 is provided with a plurality of secondary attachment portions 15 respectively attached to a plurality of secondary attachment portions 31 provided on the attachment member 3 along the length direction of the electric wire 7 on both sides in the width direction. there is

The secondary mounting portion 31 of the mounting member 3 is formed of a stud bolt projecting from the mounting member 3 toward the secondary protector 17 side, and the secondary mounting portion 15 has a hole through which the secondary mounting portion 31 is inserted. is provided.

The secondary protector 17 is attached to the mounting member 3 by fastening the nuts 33 to the secondary mounting portions 31 in a state in which the secondary mounting portions 31 are inserted through the holes of the plurality of secondary mounting portions 15 .

Here, the adjacent main mounting portions 27 and secondary mounting portions 31 of the mounting member 3 are alternately arranged along the length direction of the electric wire 7 .

By arranging the main mounting portion 27 and the sub-mounting portion 31 in this way, when the main protector 11 and the sub-protector 17 are mounted on the mounting member 3, the main protector 11 and the sub-protector 17 are brought close to each other. The arrangement space of the main protector 11 and the sub protector 17 with respect to the mounting member 3 can be reduced.

Such a secondary protector 17 is arranged on the mounting member 3 in a state in which the secondary electric wire 13 is not accommodated therein, and is mounted on the mounting member 3 via the secondary mounting portion 15 .

The secondary protector 17 attached to the mounting member 3 in this manner is provided with an opening 19 capable of accommodating the secondary electric wire 13 therein in a state of being attached to the mounting member 3 .

An opening 19 is provided on the surface of the secondary protector 17 opposite to the mounting member 3 and communicates the inside and the outside of the secondary protector 17 along the length direction of the wire 7 so that the secondary wire 13 can be accommodated. is provided.

A pair of flexible pieces 35, 35 are provided at the edge of the opening 19 so as to extend toward the inside of the sub-protector 17 so as to be able to bend and are inclined in the direction of approaching each other.

When the weight of the plurality of electric wires 7 is increased or when the circuit is changed, the auxiliary electric wire 13 is inserted into such an opening 19, and after passing through the pair of flexible pieces 35, 35, the pair of , and the sub electric wire 13 is accommodated in the sub protector 17 .

By attaching the sub-protector 17 capable of housing the sub-wires 13 to the mounting member 3 in this way, when the weight of the plurality of wires 7 is increased, the plurality of wires 7 can be separated into the main wires 5 and the sub-wires. 13 , and after wiring the main wire 5 together with the main protector 11 to the mounting member 3 , the sub wire 13 can be housed in the sub protector 17 .

Therefore, it is not necessary to handle a plurality of heavy electric wires 7 at the same time, thereby facilitating the mounting work and improving the mountability of the wire harness 1 to the mounting member 3 .

On the other hand, when an optional circuit or a split circuit is added and a newly added electric wire or a sub electric wire 13, which is a branched electric wire, is routed to the mounting member 3, the sub protector 17 attached to the mounting member 3 in advance is used. On the other hand, the sub electric wire 13 may be accommodated from the opening 19 .

Therefore, it is possible to easily add or branch the sub electric wire 13, thereby improving the degree of freedom in circuit design.

The method of attaching the wire harness 1 to the attachment member 3 is as follows. It is attached to the attachment member 3 via the attachment portion 15 .

When the weight of the plurality of electric wires 7 is increased or when the circuit is changed, the sub electric wire 13 is inserted from the opening 19 of the sub protector 17, the sub electric wire 13 is accommodated in the sub protector 17, Complete the installation work.

In such a wire harness 1, the main protector 11 accommodates the main wire 5 among the plurality of wires 7 and is attached to the mounting member 3 via the main attachment portion 9, and the secondary protector 11 other than the main wire 5 among the plurality of wires 7 is provided. It has a sub-protector 17 in which the electric wire 13 is accommodated and which is attached to the mounting member 3 via the sub-mounting portion 15 .

Therefore, when the number of electric wires 7 is large and the weight thereof increases, the electric wires 7 are divided into the main electric wire 5 and the auxiliary electric wire 13, and the main protector 11 and the auxiliary protector 17 are attached to the mounting member 3. , a plurality of electric wires 7 can be routed to the mounting member 3 without handling a heavy member, and the mountability of the wire harness 1 to the mounting member 3 can be improved.

On the other hand, when adding a new electric wire or branching an electric wire, the main protector 11 containing the main electric wire 5 is attached to the mounting member 3 in advance, and the new electric wire or the secondary electric wire 13 which is the electric wire to be branched is attached. By attaching the sub-protector 17 that accommodates to the mounting member 3, it is possible to easily add or branch electric wires, thereby improving the degree of freedom in circuit design.

Therefore, in such a wire harness 1, it is possible to improve the mountability with respect to the mounting member 3, and to improve the degree of freedom in circuit design.

Further, since the sub-protector 17 is provided with an opening 19 capable of accommodating the sub-electric wire 13 in a state of being attached to the mounting member 3 , from the opening 19 of the sub-protector 17 attached to the mounting member 3 . By accommodating the sub electric wire 13 , the sub electric wire 13 can be routed to the mounting member 3 .

(Second embodiment)
A second embodiment will be described with reference to FIGS. 4 and 5. FIG.

In the wire harness 101 according to the present embodiment, the secondary protector 103 is superimposed on the main protector 11 attached to the mounting member 3 , and the main mounting portion 9 and the sub-mounting portion 15 are connected to the wire 7 . A plurality of them are provided alternately along the length direction.

It should be noted that the same reference numerals are given to the same configurations as in the first embodiment, and the description of the configurations and functions will be omitted because they refer to the first embodiment. the effect is the same.

As shown in FIGS. 4 and 5, when the weight of the plurality of wires 7 is increased or when the circuit is changed, the secondary protector 103 is attached to the mounting member 3 with the secondary wires 13 accommodated. It is superimposed on the main protector 11 that has been placed.

By overlapping the sub-protector 103 on the main protector 11 in this manner, the arrangement space of the main protector 11 and the sub-protector 103 with respect to the mounting member 3 can be reduced.

A plurality of the main attachment portions 9 of the main protector 11 and the sub-attachment portions 15 of the sub-protector 103 arranged in this way are provided alternately along the length direction of the electric wire 7 .

By providing the main mounting portion 9 and the sub-mounting portion 15 in this manner, the main mounting portion 9 and the sub-mounting portion 15 are arranged compactly without projecting in the width direction of the main protector 11 and the sub-protector 103. can do.

As for the method of attaching such a wire harness 101 to the attachment member 3 , first, the main protector 11 containing the main electric wires 5 is attached to the attachment member 3 via the main attachment portion 9 .

When the weight of the plurality of electric wires 7 is increased or when the circuit is changed, the auxiliary electric wire 13 is housed in the auxiliary protector 103, the auxiliary protector 103 is superimposed on the main protector 11, and the auxiliary protector 103 is placed. It is attached to the attachment member 3 via the sub-attachment portion 15, and the attachment work is completed.

In such a wire harness 101, the sub-protector 103 is superimposed on the main protector 11 attached to the mounting member 3, and the main mounting portion 9 and the sub-mounting portion 15 extend in the length direction of the electric wire 7. Since a plurality of protectors 11 and 103 are provided alternately along the .theta.

(Third embodiment)
A third embodiment will be described with reference to FIG.

In wire harness 201 according to the present embodiment, sub protector 203 has base portion 205 that can be attached to mounting member 3 , and accommodation portion 207 that can accommodate sub electric wire 13 and can be attached to base portion 205 .

It should be noted that the same symbols are used for the same configurations as those of the other embodiments, and the description of the configurations and functions will be omitted because the other embodiments will be referred to. the effect is the same.

As shown in FIG. 6, the secondary protector 203 has a base portion 205 and a housing portion 207 .

The base portion 205 is formed in a plate shape, and is provided with a plurality of sub-mounting portions 15 that are respectively mounted on the plurality of sub-mounting portions 31 provided on the mounting member 3 .

The base portion 205 is attached in advance to the attachment member 3 via the sub-attachment portion 15 together with the main protector 11 .

The accommodating portion 207 is formed to have a concave cross section so as to accommodate the sub electric wire 13, and is attached to the base portion 205 via an engaging portion (not shown).

The housing portion 207 is attached to the base portion 205 while housing the sub-wires 13 when the weight of the plurality of wires 7 is increased or when the circuit is changed.

By attaching the accommodation portion 207 that accommodates the sub-wires 13 to the base portion 205 that is attached to the attachment member 3 in advance, it is possible to easily deal with an increase in the weight of the plurality of wires 7 and a change in the circuit.

The method of attaching the wire harness 201 to the attachment member 3 is as follows. attached to the mounting member 3 via the

When the weight of the plurality of electric wires 7 is increased or when the circuit is changed, the sub electric wires 13 are accommodated in the accommodating portion 207 of the sub protector 203, and the accommodating portion 207 is attached to the base portion 205. complete the work.

In such a wire harness 201, the sub-protector 203 has a base portion 205 that can be attached to the mounting member 3 and an accommodating portion 207 that can accommodate the sub-wires 13 and can be attached to the base portion 205. By attaching the housing portion 207 to the mounting member 3, the wiring of the sub electric wire 13 to the mounting member 3 can be easily performed.

In the wire harnesses according to the embodiments of the present invention, the number of main electric wires and sub electric wires differs in each embodiment. It can be selected as appropriate according to the situation.

In addition, although the sub-protector having the opening, the sub-protector superimposed on the main protector, and the sub-protector having the base portion and the housing portion are independent of each other, the configuration is not limited to this. The secondary protector may have a combination of features, such as a secondary protector having openings superimposed on the primary protector.

In addition, the main attachment portion and the sub-attachment portion are attached to the main attachment portion and the sub-attachment portion made of stud bolts via nuts. If there is a structure in which the main protector and the sub-protector can be attached to the mounting member, such as using a clip for the part and fixing the main and sub-mounting parts as holes and fixing them with clips, the main mounting part and the sub-mounting The portion, the main attached portion, and the sub-attached portion may have any form.

Furthermore, the sub-protector having a base portion and an accommodating portion has two accommodating portions attached to the base portion, but is not limited to this, and may be configured such that one, or three or more accommodating portions are attached to the base portion. good too.

(Reference example)
Here, FIG. 7 shows a wire harness 301 as a reference example.

This wire harness 301 accommodates the main electric wire 5 (see FIG. 2), and attaches a fixing member 303 wound around the outer periphery of the sub electric wire 13 to the main protector 11 attached to the mounting member 3 (see FIG. 2). .

The main protector 11 is provided with a plurality of fixing portions 305 to which the fixing members 303 can be attached. By attaching , the sub electric wire 13 can be routed to the attachment member 3 .

Even with such a wire harness 301, it is possible to easily deal with an increase in the weight of the plurality of electric wires 7 and a change in the circuit.

DESCRIPTION OF SYMBOLS 1, 101, 201... Wire harness 3... Mounting member 5... Main electric wire 7... Electric wire 9... Main mounting part 11... Main protector 13... Sub electric wire 15... Sub mounting part 17, 103, 203... Sub protector 19... Opening 205 ... Base part 207 ... Accommodating part

Claims (3)

a plurality of wires routed to the mounting member and having a main wire;
a main protector that accommodates the main electric wire among the plurality of electric wires and is attached to the mounting member via a main mounting portion;
a sub-protector that accommodates sub-wires other than the main wires among the plurality of wires and is attached to the mounting member via a sub-mounting portion;
has
The secondary protector is arranged so as to be superimposed on the primary protector attached to the attachment member,
A wire harness , wherein a plurality of the main mounting portions and the sub-mounting portions are provided alternately along the length direction of the electric wire . A wire harness according to claim 1,
A wire harness according to claim 1, wherein the secondary protector is provided with an opening capable of accommodating the secondary electric wire in a state of being attached to the mounting member. The wire harness according to claim 1 or 2 ,
A wire harness, wherein the sub-protector has a base portion that can be attached to the mounting member, and an accommodating portion that can accommodate the sub-wire and can be attached to the base portion.

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