阅读说明：本技术 线束 (Wire harness ) 是由 荒川弘行 于 2019-02-26 设计创作，主要内容包括：线束(10)具备：电线(20),具有芯线(21)及将芯线(21)的外周覆盖的第1包覆构件(22)；和路径限制构件(30),具有比芯线(21)的刚性高的刚性,在芯线(21)的两端间与芯线(21)邻接地设置,并且通过与芯线(21)一起被第2包覆构件(40)包覆,从而限制电线(20)的路径。(A wire harness (10) is provided with: an electric wire (20) having a core wire (21) and a 1 st coating member (22) that covers the outer periphery of the core wire (21); and a path regulating member (30) having a rigidity higher than that of the core wire (21), provided adjacent to the core wire (21) between both ends of the core wire (21), and regulating the path of the electric wire (20) by being coated with the 2 nd coating member (40) together with the core wire (21).)

1. A wire harness is provided with:

an electric wire having a core wire and a covering member covering an outer periphery of the core wire; and

and a path restricting member having a rigidity higher than that of the core wire, provided adjacent to the core wire between both ends of the core wire, and configured to restrict a path of the electric wire by being covered with the covering member together with the core wire.

2. The wire harness according to claim 1,

the path regulating member is provided corresponding to a part of the core wire in a length direction,

the sheathing member has: a first covering member that covers an outer periphery of the core wire at a portion where the path regulating member is not provided in the longitudinal direction; and a 2 nd coating member that coats outer peripheries of both the core wire and the path regulating member.

3. The wire harness according to claim 2,

the 2 nd sheathing member is a heat shrinkable tube.

4. The wire harness according to any one of claims 1 to 3,

the path restricting member is composed of the same metal material as the core wire.

Technical Field

The present invention relates to wire harnesses.

Background

Conventionally, a vehicle is provided with a protector for wiring a wire harness along a predetermined wiring path (see, for example, patent document 1). The protector of document 1 includes: a protector body having a recess capable of accommodating an electric wire; and a cover member that closes the opening of the recess. By using a protector having a shape corresponding to a predetermined wiring path, the path of the wire harness stored in the protector is restricted.

The wire harness further includes a stopper portion for stopping the wires and the path regulating member (also referred to as a pillar) by a tape in a state where the wires are along the path regulating member having a rod shape made of aluminum or the like, the path regulating member being bent along a predetermined wiring path. In such a wire harness, a plurality of stoppers are provided at intervals from each other in the longitudinal direction of the path regulating member.

Disclosure of Invention

Problems to be solved by the invention

However, in the wire harness described in patent document 1, the outer periphery of the electric wire is covered with the protector, and therefore the shape of the wire harness becomes large. Therefore, there is generated an inconvenience that a large space for wiring the wire harness is required.

In the case of the wire harness including the path regulating member, the wire and the path regulating member can be stopped at each stopper, but the path regulating member is likely to be twisted between the stoppers, and the wire harness may deviate from a predetermined wiring path.

The invention aims to provide a wire harness capable of limiting a wiring path through a simple structure.

Means for solving the problems

The wire harness for achieving the above object includes: an electric wire having a core wire and a covering member covering an outer periphery of the core wire; and a path regulating member having a rigidity higher than that of the core wire, provided adjacent to the core wire between both ends of the core wire, and regulating a path of the electric wire by being covered with the covering member together with the core wire.

According to this configuration, the path regulating member is provided adjacent to the core wire between both ends of the core wire and is covered with the covering member together with the core wire, so the core wire is fixed to the path regulating member. Therefore, by using the path regulating member of a shape corresponding to the wiring path of the wire harness, the path of the electric wire can be regulated. This can suppress the following: the path regulating member is relatively displaced with respect to the core wire in a circumferential direction centered on the axis of the core wire. Further, according to the above configuration, it is possible to suppress an increase in the size of the wire harness as compared with a configuration in which the path of the electric wire is restricted using a protector that covers the outer periphery of the electric wire. Therefore, the wiring path of the wire harness can be restricted with a simple structure.

In the above-described wire harness, it is preferable that the path regulating member is provided corresponding to a part of the core wire in a longitudinal direction thereof, and the covering member has: a first covering member that covers an outer periphery of the core wire at a portion where the path regulating member is not provided in the longitudinal direction; and a 2 nd coating member that coats outer peripheries of both the core wire and the path regulating member.

For example, in the case where the path regulating member is provided over the entire longitudinal direction of the core wire, the outer peripheries of the core wire and the path regulating member extending in a straight line are covered with the covering member over the entire longitudinal direction in a state where the core wire and the path regulating member are adjacent to each other. In this case, in order to bend a predetermined portion of the wire harness into a shape corresponding to the wiring path, an operation of bending the path regulating member, the core wire, and the covering member at the same time is required. However, when the rigidity of the covering member is high, the bending operation described above becomes difficult, and there is a possibility that the wiring operation of the wire harness becomes difficult.

In this regard, according to the above-described structure, for example, after the core wire is coated throughout the entire length direction thereof with the 1 st coating member, a predetermined portion of the 1 st coating member where the path limiting member adjoins the core wire is removed. Then, the outer peripheries of both the core wires and the path regulating member are covered with the 2 nd covering member in a state where the core wires are along the path regulating member formed in advance into a predetermined shape, whereby the wire harness can be manufactured. When the wire harness is thus manufactured, the operation of bending the path regulating member, the core wire, and the covering member at the same time may not be performed. Therefore, the wiring operation of the wire harness can be easily performed.

In the above-described harness, it is preferable that the 2 nd sheathing member is a heat shrinkable tube.

According to this structure, the path regulating member and the outer periphery of the core wire can be easily covered with the 2 nd covering member in a state where the core wire is along the path regulating member.

In the above-described wire harness, it is preferable that the path regulating member is made of the same metal as the core wire.

According to this structure, since the path regulating member adjacent to the core wire is formed of the same metal as the core wire, the galvanic corrosion of the path regulating member and the core wire can be suppressed.

Effects of the invention

According to the present invention, the wiring path of the wire harness can be restricted with a simple structure.

Drawings

Fig. 1 is a side view of a wire harness showing a state of being wired in a vehicle with respect to an embodiment of the wire harness.

Fig. 2 is a partial cross-sectional view showing an enlarged portion a of fig. 1.

Fig. 3 is an enlarged side view of a portion B of fig. 1.

Fig. 4 is a perspective view of a wire harness according to modification 1.

Fig. 5 is a cross-sectional view of a wire harness according to modification 2.

Detailed Description

An embodiment will be described below with reference to fig. 1 to 3.

As shown in fig. 1, the wire harness 10 is routed through a path including, for example, an underfloor surface of a vehicle 90 such as a hybrid vehicle or an electric vehicle, and electrically connects a motor 91 disposed in a front portion of the vehicle 90 and an inverter 92 disposed in a rear portion of the vehicle 90.

As shown in fig. 2 and 3, the wire harness 10 includes wires 20, and the wires 20 include core wires 21 and a cylindrical 1 st covering member 22 that covers the outer peripheries of the core wires 21. The number of the electric wires 20 may be one or a plurality of the electric wires. The core wire 21 is, for example, a stranded wire formed by stranding a plurality of metal wires made of a copper alloy. The 1 st sheathing member 22 is formed, for example, by extrusion molding of an insulating material such as polyvinyl chloride (PVC). The 1 st coating member 22 is not provided at both ends of the core wire 21, and terminals (not shown) connected to the motor 91 and the inverter 92 are provided.

The wire harness 10 is provided with a plurality of path regulating members that regulate the paths of the electric wires 20.

Next, a path regulating structure in the linear portion and the bent portion of the electric wire 20 in such a path regulating member will be described.

< straight line section >

As shown in fig. 2, an exposed portion 23 is provided in a linear portion (a portion a in fig. 1) extending along the underfloor of the vehicle 90 in the electric wires 20 of the wire harness 10, and the exposed portion 23 exposes the core wire 21 without being covered with the 1 st covering member 22 in the longitudinal direction of the core wire 21. The exposed portion 23 is formed by removing a part of the 1 st covering member 22 provided over the entire longitudinal direction of the core wire 21.

A path regulating member 30 is provided in a portion of the core wire 21 where the portion 23 is exposed, so as to be adjacent to the core wire 21, the path regulating member 30 having a rigidity higher than that of the core wire 21. The path regulating member 30 is a round bar made of the same metal material (copper alloy in the present embodiment) as the core wire 21. The cross-sectional area of the path restricting member 30 in the cross-section orthogonal to the longitudinal direction is substantially the same as the cross-sectional area of the wire 20 in the cross-section orthogonal to the longitudinal direction.

The exposed portion 23 is provided with a 2 nd coating member 40 that coats the outer peripheries of both the core wire 21 and the path regulating member 30. The 2 nd covering member 40 covers the core wire 21 and the path regulating member 30, and covers the outer peripheries of both end portions of the 1 st covering member 22 adjacent to the exposed portion 23. The 2 nd covering member 40 is a heat shrinkable tube made of polyolefin resin or the like.

< curved part >

As shown in fig. 3, in the electric wires 20 of the wire harness 10, a bent portion (portion B of fig. 1) where the wiring path is bent is provided with an exposed portion 24 where the core wire 21 is not covered with the 1 st covering member 22. A path regulating member 31 is provided in a portion of the exposed portion 24 in the core wire 21 so as to be adjacent to the core wire 21, the path regulating member 31 having a curved shape along the wiring path. The path regulating member 31 has a rigidity higher than that of the core wire 21, and is, for example, a round bar made of the same material (copper alloy in the present embodiment) as the path regulating member 30 of the straight portion. The portion of the exposed portion 24 in the core wire 21 is bent along the path regulating member 31. In this state, the outer peripheries of both the core wire 21 and the path regulating member 31 are covered with the 2 nd covering member 41. In addition, the 2 nd covering member 41 is the same heat shrinkable tube as the 2 nd covering member 40 of the straight portion.

Next, a manufacturing process of the wire harness 10 will be described.

First, the core wire 21 is covered with the 1 st covering member 22 over the entire length direction thereof. Then, by removing predetermined portions of the 1 st covering member 22 where the path limiting members 30, 31 are adjacent to the core wire 21, exposed portions 23, 24 where the core wire 21 is not covered with the 1 st covering member 22 are formed. Then, the heat shrinkable tubes of the 2 nd covering members 40 and 41 are formed on the outer peripheries of the core wire 21 and the path regulating members 30 and 31 in a state where the core wire 21 is formed along the path regulating members 30 and 31 which are formed in advance in a predetermined shape (straight shape or curved shape). Then, the heat shrinkable tube is heated and shrunk, whereby the heat shrinkable tube is closely attached to the path regulating members 30 and 31 and the core wire 21. Thus, the wire harness 10 is manufactured.

The operation of the present embodiment will be described.

The path regulating members 30 and 31 are provided in the exposed portions 23 and 24 so as to be adjacent to the core wire 21, and the path regulating members 30 and 31 have higher rigidity than the core wire 21. Then, the outer peripheries of both the core wire 21 and the path regulating members 30 and 31 are covered with the 2 nd covering members 40 and 41, whereby the path regulating members 30 and 31 are fixed to the core wire 21. Therefore, the core wires 21 in the exposed portions 23, 24 have shapes along the path regulating members 30, 31.

In addition, the second coating members 40 and 41 can suppress the following: the path regulating members 30, 31 are relatively displaced with respect to the core wire 21 in the circumferential direction centered on the axis of the core wire 21.

The effects of the present embodiment will be described.

(1) The wire harness 10 includes: an electric wire 20 having a core wire 21 and a 1 st covering member 22 covering an outer periphery of the core wire 21; and path regulating members 30, 31 having higher rigidity than the core wire 21, provided between both ends of the core wire 21 adjacent to the core wire 21, and coated with the 2 nd coating members 40, 41 together with the core wire 21, thereby regulating the path of the electric wire 20.

According to such a configuration, since the above-described function is exerted, the path of the electric wire 20 can be restricted by using the path restricting members 30 and 31 having a shape corresponding to the wiring path of the wire harness 10. Further, according to the above configuration, the increase in the size of the wire harness 10 can be suppressed as compared with the configuration in which the path of the electric wire 20 is restricted using the protector covering the outer periphery of the electric wire 20. Therefore, the wiring path of the wire harness can be restricted with a simple structure.

(2) The path regulating members 30, 31 are provided corresponding to a part of the core wire 21 in the longitudinal direction.

For example, when the path regulating members 30 and 31 are provided over the entire longitudinal direction of the core wire 21, the outer peripheries of the core wire 21 and the path regulating member are covered with the covering member over the entire longitudinal direction in a state where the core wire 21 and the path regulating member extending linearly are adjacent to each other. In this case, in order to bend a predetermined portion of the wire harness into a shape corresponding to the wiring path, an operation of bending the path regulating member, the core wire 21, and the covering member at the same time is required. However, when the rigidity of the covering member is high, the bending operation described above becomes difficult, and there is a possibility that the wiring operation of the wire harness becomes difficult.

In this regard, according to the above configuration, the outer peripheries of both the core wire 21 and the path regulating members 30 and 31 are covered with the 2 nd covering members 40 and 41 in a state where the core wire 21 is along the path regulating members 30 and 31 formed in advance into a predetermined shape, whereby the wire harness 10 can be manufactured. When the wire harness 10 is manufactured in this way, the operation of simultaneously bending the path regulating members 30, 31, the core wire 21, and the 1 st sheathing member 22 may not be performed. Therefore, the wiring operation of the wire harness 10 can be easily performed.

(3) The 2 nd sheathing member 40, 41 is a heat shrinkable tube. Therefore, the outer peripheries of the path regulating members 30, 31 and the core wire 21 can be easily coated with the 2 nd coating members 40, 41 in a state where the core wire 21 is along the path regulating members 30, 31.

(4) Since the path regulating members 30, 31 are composed of the same metal material (copper alloy) as the core wire 21, the galvanic corrosion of the path regulating members 30, 31 and the core wire 21 can be suppressed.

(5) Since the path regulating members 30 and 31 are made of a metal material, bending and shape correction are easier than in the case where the path regulating members are made of a resin material, for example.

This embodiment can be modified as follows. The present embodiment and the following modifications can be combined and implemented within a range not technically contradictory to each other.

The shape of the path regulating members 30 and 31 is not limited to a round bar. In addition, for example, as shown in fig. 4, a path regulating member 230 extending along the core wire 21 and having a U-shaped cross section may be used. In this case, the core wire 21 may be housed in the recess 230a of the path regulating member 230 and the core wire 21 and the path regulating member 230 may be covered with the 2 nd covering member 240. This can further suppress an increase in the size of the wire harness. In addition, the core wire 21 can be easily made to follow the path regulating member 230.

The path regulating members 30 and 31 are not limited to copper alloys. In addition, the path regulating member may be formed of another metal material such as aluminum. In addition, the path regulating member may be formed of a resin material. In this case, it is sufficient if the predetermined shape along the wiring path of the wire harness is molded in advance by molding.

The cross-sectional area of the path regulating member 30 in the cross-section perpendicular to the longitudinal direction may not be substantially the same as the cross-sectional area of the electric wire 20 in the cross-section perpendicular to the longitudinal direction. In short, the path regulating member 30 may be any member as long as it can regulate the path of the electric wire 20, and for example, the cross-sectional area of the cross-section orthogonal to the longitudinal direction of the path regulating member 30 may be smaller than the cross-sectional area of the cross-section orthogonal to the longitudinal direction of the electric wire 20.

Instead of the heat shrinkable tube, the exposed portions 23 and 24 of the core wire 21 may be partially covered by resin molding. In this case, water entering from the end of the electric wire 20 can be effectively prevented from reaching the exposed portions 23, 24. Therefore, the galvanic corrosion of the path regulating members 30, 31 and the core wire 21 can be suppressed. In addition, the path regulating member and the core wire can be made of different kinds of metals.

It is also possible to form an exposed portion of the core wire 21 not covered with the 1 st covering member 22 by removing a part of the 1 st covering member 22 in the circumferential direction, and provide a path regulating member in the exposed portion.

An exposed portion of the core wire 21 not covered with the 1 st covering member 22 may be formed in a portion between the end portion of the core wire 21 and the 1 st covering member 22, and a path regulating member may be provided in the exposed portion.

After the core wire 21 and the path regulating member 30 are coated with the 2 nd coating member 40, the core wire 21, the path regulating member 30, and the 2 nd coating member 40 may be simultaneously bent along the shape of the wiring path.

The 2 nd coating member can be omitted. That is, as shown in fig. 5, the core wire 121 and the path regulating member 130 may be covered with the 1 st covering member 122.

The core wire 21 is not limited to being made of a copper alloy. In addition, for example, a metal having excellent conductivity such as an aluminum alloy can be used.

Description of the reference numerals

10: a wire harness; 20. 120: an electric wire; 21. 121: a core wire; 22, 122: 1 st cladding member; 23. 24: an exposed portion; 30. 31, 130, 230: a path limiting member; 40. 41, 240: a 2 nd cladding member; 90: a vehicle; 91: an electric motor; 92: an inverter; 230 a: a recess.