WO2018131483A1

WO2018131483A1 - Wire harness

Info

Publication number: WO2018131483A1
Application number: PCT/JP2017/046896
Authority: WO
Inventors: 洋和中井
Original assignee: 住友電装株式会社
Priority date: 2017-01-12
Filing date: 2017-12-27
Publication date: 2018-07-19

Abstract

A wire harness 10 is provided with: a single-core wire 21 with a proximal end side thereof electrically connected to a first stranded wire 11; and an electrically conductive pipe 22 which is electrically connected to the single-core wire 21 with at least a distal end side of the single-core wire 21 fitted in an opening portion 22a on a distal end side of the electrically conductive pipe 22, a proximal end side of which being electrically connected to a second stranded wire 12 different from the first stranded wire 11.

Description

Wire harness

The present invention relates to a wire harness.

2. Description of the Related Art Conventionally, a vehicle with a traveling motor such as a hybrid vehicle or an electric vehicle includes, for example, a traveling motor, an inverter connected to the traveling motor, and a high-voltage battery that supplies electric power to the inverter as disclosed in Patent Document 1. The inverter and the high voltage battery are connected by a wire harness having a plurality of electric wires.

JP 2016-58137 A

Moreover, in the wire harness as described above, a substantially cylindrical single-core wire is used when it can be arranged on a straight line.
By the way, the location of the inverter, the high voltage battery and the traveling motor, the distance between the inverter and the high voltage battery, and / or the distance between the inverter and the traveling motor may differ depending on the vehicle type. For this reason, it is necessary to use a dedicated single core wire having a different length for each vehicle type. It may be difficult to adjust the length of a single core wire compared to a stranded wire.

An object of the present invention is to provide a wire harness whose length can be easily adjusted.
A wire harness that solves the above-described problem is a wire harness that is routed in a vehicle, and includes a first flexible conductor having flexibility, a columnar conductor that is electrically connected to one end side, and the columnar conductor. A cylindrical conductor that is electrically connected to the columnar conductor in a state in which the end portion is fitted from the opening on the one end portion side.

According to this configuration, since the columnar conductor is fitted in the cylindrical conductor, the columnar conductor is changed by changing the insertion depth of the columnar conductor with respect to the cylindrical conductor, that is, the overlapping length of the cylindrical conductor and the columnar conductor. The length of the assembly of the conductor and the cylindrical conductor can be adjusted, and the length of the wire harness can be easily adjusted.

In the wire harness, the first flexible conductor is connected to one end of the columnar conductor, and the second flexible conductor has flexibility different from that of the first flexible conductor at the other end of the cylindrical conductor. Are preferably connected.

According to this configuration, since the number of columnar conductors and cylindrical conductors between the first flexible conductor and the second flexible conductor is one, an increase in the number of parts of the wire harness can be suppressed. .
In the wire harness, it is preferable that a connection portion having a flat joining surface to which the second flexible conductor is joined is formed at the other end portion of the cylindrical conductor.

According to this structure, connectivity with a stranded wire can be improved by having a flat joint surface on which the second flexible conductor is joined to the other end of the cylindrical conductor.
In the wire harness, the opening on the other end side of the cylindrical conductor is electrically connected to the other columnar conductor in a state where one end of another columnar conductor different from the columnar conductor is fitted in the opening. Are preferably connected.

According to this configuration, since the columnar conductors are arranged at both ends of the cylindrical conductor, the length of the assembly of the cylindrical conductor and the columnar conductor can be adjusted at both ends of the cylindrical conductor. It is possible to improve the degree of freedom in designing the vehicle in which the cable is routed.

In the wire harness, it is preferable that a second flexible conductor different from the first flexible conductor is connected to the other end of the other columnar conductor.
According to this structure, it can be set as the structure by which the cylindrical conductor was arrange | positioned between two columnar conductors between the 1st flexible conductor and the 2nd flexible conductor.

In the wire harness, the columnar conductor is preferably a solid member.
According to this configuration, since the columnar conductor is a solid member, the columnar conductor can have a simple structure.

In the wire harness, the columnar conductor is preferably a hollow member.
According to this configuration, since the columnar conductor is a hollow member, the surface area of the columnar conductor can be increased, which can contribute to an improvement in heat dissipation.

In the wire harness, another cylindrical conductor different from the cylindrical conductor is interposed between the columnar conductor and the first flexible conductor, and the first possible conductor is disposed at one end of the other cylindrical conductor. While the flexible conductor is connected, the columnar conductor and the first flexible conductor are electrically connected in a state where the one end of the columnar conductor is fitted in the opening of the other cylindrical conductor. It is preferable to be connected.

According to this configuration, the columnar conductor can be arranged between the two cylindrical conductors, and the length of the assembly of the cylindrical conductor and the columnar conductor can be adjusted at both ends of the columnar conductor. The degree of freedom in designing the harness and / or the vehicle in which the wire harness is routed can be improved.

According to some aspects of the present invention, the length of the wire harness can be easily adjusted. Other aspects and advantages of the present invention will become apparent from the following description taken in conjunction with the drawings, which illustrate examples of the technical spirit of the present invention.

The perspective view of the wire harness of embodiment. The disassembled perspective view of the wire harness of FIG. The partially broken front view of the wire harness of FIG. The partially broken front view of the wire harness of a 1st modification. The front view of the wire harness of a 2nd modification. The partially broken front view of the wire harness of a 3rd modification. The partially broken front view of the wire harness of a 4th modification.

Hereinafter, an embodiment of the wire harness will be described with reference to FIGS. In each drawing, a part of the configuration may be exaggerated or simplified for convenience of explanation. Further, the dimensional ratio of each part may be different from the actual one.

As shown in FIG. 1, the wire harness 10 is different from the first stranded wire 11 and the single stranded wire 21 as a columnar conductor connected to the first stranded wire 11 as the first flexible conducting wire. It has the one conductive pipe 22 as a cylindrical conductor connected with the 2nd strand 12 as 2 flexible conducting wires. The single core wire 21 and the conductive pipe 22 of the present embodiment are, for example, a high voltage battery (not shown) installed at the rear of the vehicle and an illustration shown installed at the front of the vehicle in a vehicle with a traveling motor such as a hybrid vehicle or an electric vehicle. It is comprised so that it may connect with the inverter which does not, and is routed so that it may pass under the floor of the said vehicle. The wire harness 10 includes a subset of the first stranded wire 11, the second stranded wire 12, the single core wire 21, and the conductive pipe 22 respectively corresponding to the plus side route and the minus side route between the high voltage battery and the inverter. You can have two. Note that the term high voltage battery used in this specification refers to a battery capable of supplying a voltage of several hundred volts to the traveling motor. The term “inverter” used in this specification refers to an inverter configured to generate AC power from DC power of a high-voltage battery and supply the AC power to the traveling motor.

As shown in FIGS. 1 to 3, the first stranded wire 11 has a core wire 13 made of a plurality of strands and an insulating coating 14 covering the core wire 13. The core wire 13 of the 1st strand wire 11 is comprised from the strand formed, for example with aluminum or aluminum alloy. One end of the first stranded wire 11 is electrically connected to, for example, a high voltage battery (not shown). At the other end of the first stranded wire 11, the core wire 13 is exposed from the coating 14. The plurality of exposed strands of the core wire 13 are welded and integrated to form, for example, a substantially rectangular parallelepiped joining block portion 13a.

As shown in FIGS. 1 to 3, the second stranded wire 12 has substantially the same configuration as the first stranded wire 11, and includes a core wire 15 composed of a plurality of strands, and an insulation coating 16 covering the core wire 15. Have The core wire 15 of the 2nd strand wire 12 is comprised from the strand formed, for example with aluminum or aluminum alloy. The core wire 15 is exposed from the coating 16 at one end of the second stranded wire 12. The plurality of exposed strands of the core wire 15 are welded and integrated to form, for example, a substantially rectangular parallelepiped joining block portion 15a. The other end of the second stranded wire 12 is electrically connected to an inverter (not shown), for example.

As shown in FIGS. 1 to 3, the single core wire 21 is composed of a single substantially cylindrical conductor. The single core wire 21 is made of, for example, aluminum or an aluminum alloy. One end of the single core wire 21 is crushed into a flat plate shape to form a crushed portion 21a. A step in the radial direction is formed between the crushing portion 21a and a portion of the single core wire 21 other than the crushing portion 21a. The crushing portion 21a has a flat joining surface 21b to which the first stranded wire 11 is joined. The crushing part 21a is formed by the following method, for example. First, one end of the single core wire 21 is placed on a receiving jig on which one end of the single core wire 21 can be placed. A pair of constraining walls are formed on the receiving jig so as to sandwich one end of the single core wire 21 from the width direction. A crushing jig is brought close to one end of the single core wire 21 (on the side opposite to the receiving jig), and the one end side of the single core wire 21 is crushed with the receiving jig in a state where stretching in the width direction is restricted. The crushing part 21a is formed by crushing between tools.

The crushing part 21a which is the one end part side of the single core wire 21 is electrically connected with the joining block part 13a of the 1st strand wire 11 on the joining surface 21b. The connection method is not particularly limited, and examples include ultrasonic welding and laser welding. Moreover, the number of welding locations may be one or plural. The other end side of the single core wire 21 is electrically connected to the conductive pipe 22.

As shown in FIGS. 1 and 2, the conductive pipe 22 is configured to have a substantially bottomed cylindrical shape having, for example, an opening 22a opened at one end. The conductive pipe 22 has an inner diameter that is substantially the same as or larger than the outer diameter of the single core wire 21, and the single core wire 21 can be inserted into the conductive pipe 22. As shown by a broken line in FIG. 2, the single core wire 21 and the conductive pipe 22 are arranged coaxially.

Further, the conductive pipe 22 is made of, for example, aluminum or an aluminum alloy. On the other end side, which is the bottom of the conductive pipe 22, a connection portion 22 b for connecting to the second stranded wire 12 is formed integrally from the other end portion. The connecting portion 22b has substantially the same configuration as the crushing portion 21a, and is formed by crushing the cylindrical portion on the other end side of the conductive pipe 22 into a flat plate shape. The connecting portion 22b is formed so as to be bent with a step in the radial direction from the portion other than the connecting portion 22b of the conductive pipe 22. The connecting portion 22b has a flat joining surface 22c to which the second stranded wire 12 is joined. At the connection portion 22b, the opening of the conductive pipe 22 is substantially closed. The connection part 22b is electrically connected to the joint block part 15a of the second stranded wire 12 on the joint surface 22c. The connection method is not particularly limited, and examples include ultrasonic welding and laser welding. Moreover, the number of welding locations may be one or plural.

The single core wire 21 and the conductive pipe 22 are electrically connected by laser welding in a state where the single core wire 21 is inserted into (inserted into) the conductive pipe 22. For example, the length of the assembly of the single core wire 21 and the conductive pipe 22 can be adjusted by appropriately changing the insertion depth of the single core wire 21 with respect to the conductive pipe 22 according to the specifications of the vehicle type and the like. The insertion depth may be referred to as an axial overlap length between the inner surface of the conductive pipe 22 and the outer surface of the single core wire 21. It is preferable that the inner surface of the conductive pipe 22 and the outer surface of the single core wire 21 are in surface contact over the axial overlap length. The assembly of the single core wire 21 and the conductive pipe 22 functions as a linear conductive telescopic joint. Before the single core wire 21 and the conductive pipe 22 are fixedly connected by fixed connection means such as laser welding, the length of the assembly of the single core wire 21 and the conductive pipe 22 is adjusted by adjusting the insertion depth. it can. After the single core wire 21 and the conductive pipe 22 are fixedly connected in a state where the insertion depth is adjusted, further adjustment of the insertion depth is impossible. The number of welding locations may be one or plural.

Next, the operation of this embodiment will be described.
In the wire harness 10 of this embodiment, the high-voltage battery is provided by providing a single core wire 21 as a columnar conductor and a conductive pipe 22 as a cylindrical conductor between a first stranded wire 11 and a second stranded wire 12. And the inverter are electrically connected. Moreover, although the separation distance between the 1st strand wire 11 and the 2nd strand wire 12 may differ according to specifications, such as a vehicle model, for example, the insertion depth of the single core wire 21 with respect to the conductive pipe 22 is changed. This is possible.

Next, the effect of this embodiment will be described.
(1) Since the single core wire 21 is fitted in the conductive pipe 22, the length of the assembly of the single core wire 21 and the conductive pipe 22 is adjusted by changing the insertion depth of the single core wire 21 into the conductive pipe 22. Therefore, the length of the wire harness 10 can be easily adjusted.

(2) Since the number of the single core wires 21 and the conductive pipes 22 between the first stranded wire 11 and the second stranded wire 12 is one, the increase in the number of parts of the wire harness 10 can be suppressed. it can.

(3) By having the flat joining surface 22c to which the 2nd strand wire 12 is joined to the connection part 22b which is the other end part of the electrically conductive pipe 22, the connectivity with the strand wire 12 can be improved.
(4) Since the single core wire 21 is a solid member, the columnar conductor can have a simple structure.

(5) The wire harness 10 is suitable for use in a vehicle including a straight wiring location. For example, the assembly of the single core wire 21 and the conductive pipe 22 can be arranged at a straight wiring place. Although the length of the linear wiring location of the vehicle may vary depending on the specifications of the vehicle type or the like, the wire harness 10 can be linearly arranged by changing the insertion depth of the single core wire 21 with respect to the conductive pipe 22. It is possible to respond to variations in the length of the search point. In addition, the connectivity of the wire harness 10 to the vehicle electrical apparatus such as a high-voltage battery or an inverter is maintained by the first stranded wire 12 and the second stranded wire 12, and at the same time, the vehicle is straightened by the assembly of the single core wire 21 and the conductive pipe 22. The wiring harness 10 can be easily routed to the target routing location.

(6) Although the length of the assembly of the single core wire 21 and the conductive pipe 22 can be adjusted, for example, when the wire harness 10 is manufactured, the length of the assembly of the single core wire 21 and the conductive pipe 22 can be adjusted when the wire harness 10 is routed to the vehicle. The length may be adjusted. For example, the insertion depth of the single core wire 21 and the conductive pipe 22 is changed in a state where the wire harness 10 is temporarily wired in the vehicle, and the single core wire 21 and the conductive pipe 22 are fixed by a fixed connection means such as a welding spot. By connecting them together, the length of the assembly of the single core wire 21 and the conductive pipe 22 can be maintained at the adjusted desired length.

In addition, you may change the said embodiment as follows.
-In above-mentioned embodiment, although the single core wire 21 was comprised by one conductor, except the connection location of the single core wire 21 and the 1st strand wire 11, and the connection location of the single core wire 21 and the electrically conductive pipe 22, for example. The outer periphery of the single core wire 21 may be covered with insulation.

The outer periphery of the conductive pipe 22 may be insulated and coated except for the connection portion between the conductive pipe 22 and the second stranded wire 12 and the connection portion between the conductive pipe 22 and the single core wire 21.
In the above embodiment, the single core wire 21 as the columnar conductor is a solid member. However, the present invention is not limited to this, and the columnar conductor may be a hollow conductor having a cavity inside.

For example, as shown in FIG. 4, a cylindrical conductive pipe 31 may be adopted as a columnar conductor having a cavity inside. The conductive pipe 31 is configured to have a bottomed cylindrical shape having an outer diameter smaller than the diameter (inner diameter) of the opening 22 a of the other conductive pipe 22. A connecting portion 31 a for connecting to the first stranded wire 11 is integrally formed on the bottom portion, which is one end portion of the conductive pipe 31, similarly to the connecting portion 22 b of the conductive pipe 22. The connection portion 31a is formed by crushing the cylindrical portion on the bottom side of the conductive pipe 31 into a flat plate shape. A step in the radial direction is formed between the connecting portion 31a and the conductive pipe 31 other than the connecting portion 31a. The connection part 31a has a flat joining surface 31b to which the first stranded wire 11 is joined. In this connection portion 31a, the opening on the bottom side of the conductive pipe 31 is substantially closed. The connecting portion 31a is electrically connected to the joining block portion 13a of the first stranded wire 11 on the joining surface 31b. The connection method is not particularly limited, and examples include ultrasonic welding and laser welding. Moreover, the number of welding locations may be one or plural.

The opening 31c on the other end side of the conductive pipe 31 is, for example, laser welded in a state where the conductive pipe 31 is fitted (inserted) into the conductive pipe 22 so as to be located in the opening 22a of the conductive pipe 22. To be electrically connected. In addition, the number of welding locations may be one or plural.

As described above, by adopting the hollow conductive pipe 31 as the columnar conductor, the surface area can be increased and the heat dissipation can be improved. Further, for example, the weight can be reduced as compared with the case where the single core wire 21 having the same diameter is employed. Moreover, when it has a cross-sectional area equivalent to the single core wire 21, the rigidity of the conductive pipe 31 can be increased.

-In the wire harness 10 of the said embodiment, it was set as the structure which provides the one single core wire 21 and the one electrically conductive pipe 22 between the 1st strand wire 11 and the 2nd strand wire 12, However, it is not restricted to this Absent.

For example, a configuration having a plurality of single core wires and one conductive pipe 22 between the first stranded wire 11 and the second stranded wire 12 may be adopted. As an example of this, the configuration shown in FIG. 4 can be considered.

As shown in FIG. 5, the first strand wire 11, the conductive pipe 22, the single core wire 23, and the second strand wire 12 are connected in this order from the first strand wire 11 side. The 1st strand wire 11, the single core wire 21, and the 2nd strand wire 12 of this example have the structure similar to the said embodiment. The conductive pipe 22 of this example is configured to have a cylindrical shape with both ends opened. The single core wire 23 of this example has substantially the same configuration as the single core wire 21 and is configured by a single substantially cylindrical conductor. The single core wire 23 is made of, for example, aluminum or an aluminum alloy. One end of the single core wire 23 is inserted from the opening on the other end side of the conductive pipe 22, and the single core wire 23 and the conductive pipe 22 are electrically connected by laser welding. The other end of the single core wire 23 is crushed into a flat plate shape to form a crushed portion 23a. A step in the radial direction is formed between the crushing portion 23a and a portion of the single core wire 23 other than the crushing portion 23a. The crushing portion 23a has a flat joining surface 23b to which the second stranded wire 12 is joined. The crushing portion 23a on the other end side of the single core wire 23 is electrically connected to the joining block portion 15a of the second stranded wire 12 on the joining surface 23b. The connection method is not particularly limited, and examples include ultrasonic welding and laser welding. Moreover, the number of welding locations may be one or plural.

As described above, since the

single core wires

21 and 23 as the columnar conductors are arranged at both ends of the conductive pipe 22 as the cylindrical conductor, the assembly of the conductive pipe 22 and the

single core wires

21 and 23 at both ends of the conductive pipe 22. Since the length of the wire harness can be adjusted, the degree of freedom in designing the wire harness and / or the vehicle in which the wire harness is routed can be improved.

As another alternative, a configuration in which a plurality of single core wires 21 and a plurality of conductive pipes 22 are provided between the first stranded wire 11 and the second stranded wire 12 may be adopted.
Alternatively, a configuration in which one single core wire 21 and a plurality of conductive pipes 22 are provided between the first stranded wire 11 and the second stranded wire 12 may be employed. As an example of this, the configuration shown in FIG. 6 can be considered.

As shown in FIG. 6, the conductive pipe 32, the single core wire 21, and the conductive pipe 22 are connected in order from the first stranded wire 11 side. The 1st strand wire 11, the electrically conductive pipe 22, and the 2nd strand wire 12 of this example have the same structure as the said embodiment. In the case of this example, the conductive pipe 32 different from the conductive pipe 22 is provided between the first stranded wire 11 and the single core wire 21.

The conductive pipe 32 has a configuration substantially the same as that of the conductive pipe 22 and is configured to have a bottomed cylindrical shape. That is, a connection portion 32 a for connecting to the first stranded wire 11 is formed integrally with the bottom portion, which is one end portion of the conductive pipe 32, similarly to the connection portion 22 b of the conductive pipe 22. The connecting portion 32a is formed by crushing a cylindrical portion on the bottom side of the conductive pipe 32 into a flat plate shape. A step in the radial direction is formed between the connecting portion 32a and a portion of the conductive pipe 32 other than the connecting portion 32a. The connection part 32a has a flat joining surface 32b to which the first stranded wire 11 is joined. In this connection portion 32a, the opening on the bottom side of the conductive pipe 32 is substantially closed. The connecting portion 32a is electrically connected to the joining block portion 13a of the first stranded wire 11 on the joining surface 32b. The connection method is not particularly limited, and examples include ultrasonic welding and laser welding. Moreover, the number of welding locations may be one or plural.

Moreover, the single core wire 21 of this example has a configuration in which the crushing portion 21a is omitted, unlike the single core wire of the above embodiment. That is, the single core wire 21 of this example is configured to have a simple cylindrical shape, one end is inserted into the opening 32 c of the conductive pipe 32, and the other end is connected to the opening 22 a of the conductive pipe 22. It is configured to be inserted. Then, one end of the single core wire 21 and the conductive pipe 32 are electrically connected by, for example, laser welding, and the other end of the single core wire 21 and the conductive pipe 22 are, for example, laser welded. Electrically connected. In addition, the number of welding locations may be one or plural.

In the above example, the solid single core wire 21 is employed as the columnar conductor, but the present invention is not limited to this.
As shown in FIG. 7, a configuration using a conductive pipe 33 having a hollow structure as a columnar conductor may be employed. The conductive pipe 33 is configured to have a substantially cylindrical shape having openings 33a and 33b at both ends. The conductive pipe 33 is electrically connected by, for example, laser welding in a state in which the conductive pipe 32 is fitted (inserted) so that one opening 33 a is positioned in the opening 32 c of the conductive pipe 32. The The conductive pipe 33 is electrically connected by, for example, laser welding in a state where the other opening 33b is fitted (inserted) into the conductive pipe 22 so that the other opening 33b is positioned in the opening 22a of the conductive pipe 22. The In addition, the number of welding locations may be one or plural. Moreover, you may make it electrically connect not only by laser welding but by other connection methods, such as ultrasonic welding and crimping | compression-bonding.

In the configuration shown in FIG. 7, the conductive pipe 33 is inserted into (inserted into) the other conductive pipe 32 and the conductive pipe 22. However, the configuration is not limited thereto. For example, a configuration in which the other conductive pipe 32 and the conductive pipe 22 are externally fitted by the conductive pipe 33 may be employed.

In the above embodiment, the first stranded wire 11 and the crushing portion 21a, which is the first end portion on the one end portion side of the single core wire 21, are configured to be electrically connected by being mechanically connected directly. Not limited to this.

For example, another conductive member may be interposed between the first stranded wire 11 and the single core wire 21 so that the first stranded wire 11 and the single core wire 21 are electrically connected.
In the above embodiment, the second stranded wire 12 and the other end side of the conductive pipe 22 are electrically connected by being mechanically directly connected, but the present invention is not limited thereto.

For example, the second stranded wire 11 and the conductive pipe 22 may be electrically connected by interposing another conductive member between the second stranded wire 12 and the conductive pipe 22.
In the above embodiment, the conductive pipe 22 and the second stranded wire 12 may be connected by inserting (internally fitting) the second stranded wire 12 into the conductive pipe 22. At this time, there are various methods for connecting the conductive pipe 22 and the second stranded wire 12. Examples thereof include laser welding, ultrasonic welding, and pressure bonding.

In the above embodiment, the conductive pipe 22 has a cylindrical shape, but may be changed to an elliptical cylindrical shape or a polygonal cylindrical shape.
-In the said embodiment, each strand of the core wire 13 of the 1st strand wire 11, each strand of the core wire 15 of the 2nd strand wire 12, the single core wire 21, and the electrically conductive pipe 22 are made of aluminum or aluminum alloy However, these may be changed as appropriate. For example, each strand of the core wire 13 of the first stranded wire 11 and each strand of the core wire 15 of the second stranded wire 12 may be made of copper or a copper alloy.

In the above embodiment, the wire harness 10 is configured to connect the high voltage battery and the inverter. However, for example, the wire harness 10 may be configured to connect the inverter and the traveling motor. In the case of a wire harness connecting an inverter and a traveling motor, for example, since it is a three-phase AC power supply, an assembly of a single core wire 21 and a conductive pipe 22 may be applied to all or part of the three conductive paths.

Also, it is not limited to a high voltage (high voltage) battery such as a high voltage battery. That is, the present invention can be widely applied to a wire harness that connects at least two electrical devices that are electrically connected.

-Although not mentioned in particular in the said embodiment, the structure which provides the protection member which coat | covers the connection part of the 1st strand wire 11 and the single core wire 21, or the connection part of the 2nd strand wire 12 and the electrically conductive pipe 22 May be adopted. As an example of the protective member, a configuration in which the heat-shrinkable tube is used and a configuration in which a tape is wound around the connecting portion to cover the surface can be used. However, other methods may be used.

Although not particularly mentioned in the above embodiment, a configuration may be adopted in which an exterior material that protects the first stranded wire 11, the second stranded wire 12, the single core wire 21, the conductive pipe 22, and the like is provided. Examples of the exterior material include a pipe made of metal or resin, a composite pipe in which a conductive shield layer is laminated or embedded in a non-metallic pipe body, and the like.

In the above embodiment and each modification, the first stranded wire 11 is adopted as the first flexible conductor and the second stranded wire 12 is adopted as the second flexible conductor. Not limited to stranded wire. For example, a tubular braided member or a flat braided member may be employed as the flexible conductor.

In the above embodiment, the single core wire 21 and the conductive pipe 22 are electrically connected by laser welding. However, the present invention is not limited to this, and the connection method may be changed as appropriate. For example, the single core wire 21 and the conductive pipe 22 may be electrically connected by ultrasonic welding or pressure bonding. As another example, a method of connecting the workpiece to be plastically deformed while relatively rotating the jig and the workpiece may be employed. More specifically, the outer conductive pipe 22 to be processed and the jig are rotated relative to each other while the jig is brought into contact with the outer side of the conductive pipe 22 and plastically deformed so that the diameter of the conductive pipe 22 is reduced. The inner surface of the reduced diameter portion of the pipe 22 is electrically connected to the single core wire 21. Note that the present invention can also be applied to the configurations shown in FIGS. As a processing method for plastic deformation that can be used for such connection, there are a spinning process and a swaging process.

-You may combine the said embodiment and each modification suitably.
The present disclosure includes the following configurations. The reference numerals of the constituent elements of the embodiment are given for the purpose of understanding but not limitation.

[Appendix 1] A wire harness (10) routed in a vehicle,
A first flexible wire (11);
A second flexible wire (12) separated axially from the first flexible wire (11);
A first end portion (between the first flexible wire (11) and the second flexible wire (12) and directly connected to the first flexible wire (11) ( 21a) and a linear conductive telescopic joint (21, 22; 21, 22, 23; 22, 32) including a second end (22b) directly connected to the second flexible wire (12). 33) a wire harness (10).

[Appendix 2] The linear conductive telescopic joints (21, 22) are:
A first linear elongate member (21) having an outer surface, and a second linear elongate member having an inner surface that is in surface contact with the outer surface of the first linear elongate member (21) over the overlapping length. (22)
The wire harness (10) according to appendix 1, wherein the length of the linear conductive telescopic joint (21, 22) can be adjusted by changing the overlap length.

[Appendix 3] The linear conductive telescopic joints (21, 22, 23) are:
A plurality of first linear elongated members (21, 23) each having an outer surface;
A second linear elongate member (22) having an inner surface in surface contact with the outer surface of each of the plurality of first linear elongate members (21, 23) over an overlapping length;
The length of the linear conductive telescopic joint (21, 22) is at least one of the plurality of first linear elongated members (21, 23) and the second linear elongated member (22). The wire harness (10) according to appendix 1, wherein the wire harness (10) can be adjusted by changing the overlap length of the wire.

[Appendix 4] The linear conductive telescopic joints (22, 32, 33) are:
A first linear elongated member (33) having both ends and an outer surface;
A plurality of second linear lengths having inner surfaces that are in surface contact with the outer surface of the first linear elongated member (33) over the overlapping length at both ends of the first linear elongated member (33). Scale members (22, 32),
The length of the linear conductive telescopic joint (22, 32, 33) is such that at least one of the plurality of second linear elongated members (22, 32) and the first linear elongated member (33). The wire harness (10) according to appendix 1, which can be adjusted by changing the superposition length with.

[Supplementary Note 5] The wire harness according to Supplementary Note 2, further comprising fixed connection means for fixedly connecting the first linear elongated member (21) and the second linear elongated member (22). 10).
[Appendix 6] The wire harness (10) of Appendix 2, wherein the first linear elongated member (21) and the second linear elongated member (22) are coaxially arranged.

[Supplementary Note 7] The first flexible electric wire (11) is connected to the first end (21a) of the linear conductive telescopic joint (21, 22). The second flexible wire (12) includes a second joint block (13a) directly connected to the second end (22b) of the linear conductive telescopic joint (21, 22). The wire harness (10) according to appendix 2, including.

[Appendix 8] The first flexible electric wire (11) is connected to the first wire harness (10) from the linear conductive telescopic joint (21, 22; 21, 22, 23; 22, 32, 33). The wire harness (10) according to any one of appendices 1 to 7, which extends to the end.

[Supplementary Note 9] The second flexible electric wire (12) is connected to the second wire harness (10) from the linear conductive telescopic joint (21, 22; 21, 22, 23; 22, 32, 33). The wire harness (10) according to any one of appendices 1 to 8, which extends to the end.

[Appendix 10] The wire harness (10) according to any one of Appendices 1 to 9, wherein the first linear elongated member (21, 23, 33) includes a columnar or cylindrical portion having a first outer diameter. .
[Appendix 11] The wire harness (10) according to any one of Appendices 1 to 10, wherein the second linear elongated member (22; 32) includes a cylindrical portion having a second inner diameter.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the technical concept thereof. For example, some of the parts described in the embodiment (or one or more aspects thereof) may be omitted, or some parts may be combined. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

DESCRIPTION OF SYMBOLS 10 ... Wire harness 11 ... 1st strand wire (1st flexible conductor)
12 ... 2nd strand wire (2nd flexible conductor)
21 ... Single core wire (columnar conductor)
21b ... joining surface 22 ... conducting pipe (cylindrical conductor)
22a ... Opening part 22b ... Connection part 22c ... Joint surface 23 ... Single core wire (other columnar conductor)
23b ... Joint surface 31 ... Conductive pipe (columnar conductor)
31a ... Connection part 31b ... Joining surface 31c ... Opening part 32 ... Conductive pipe (other cylindrical conductor)
32a ... Connection portion 32b ... Joint surface 32c ... Opening portion 33 ... Conductive pipe (columnar conductor)
33a, 33b ... opening

Claims

A wire harness routed in a vehicle,
A first flexible conductor having flexibility and a columnar conductor to which one end side is electrically connected;
A cylindrical conductor that is electrically connected to the columnar conductor in a state in which the other end of the columnar conductor is fitted from an opening on one end side;
A wire harness comprising:
The wire harness according to claim 1,
The first flexible conductor is connected to one end of the columnar conductor, and the second flexible conductor having flexibility different from that of the first flexible conductor is connected to the other end of the cylindrical conductor. A wire harness characterized by that.
The wire harness according to claim 2,
A wire harness having a flat joint surface to which the second flexible conductor is joined is formed at the other end of the cylindrical conductor.
The wire harness according to claim 1,
The opening on the other end side of the cylindrical conductor is electrically connected to the other columnar conductor in a state where one end of another columnar conductor different from the columnar conductor is fitted in the opening. The wire harness characterized by being.
The wire harness according to claim 4,
A wire harness, wherein a second flexible conductor different from the first flexible conductor is connected to the other end of the other columnar conductor.
The wire harness according to any one of claims 1 to 5,
The columnar conductor is a solid member.
The wire harness according to any one of claims 1 to 5,
A wire harness, wherein the columnar conductor is a hollow member.
The wire harness according to any one of claims 1 to 7,
Another cylindrical conductor different from the cylindrical conductor is interposed between the columnar conductor and the first flexible conductor, and the first flexible conductor is connected to one end of the other cylindrical conductor. And the columnar conductor and the first flexible conductor are electrically connected in a state where the one end of the columnar conductor is fitted in the opening on the other end of the other cylindrical conductor. A characteristic wire harness.