JP2017037778A - Conductive path for vehicle and wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conductive path for a vehicle with easy flexure operation and a wire harness.SOLUTION: There is provided a conductive path 1 for a vehicle a part of which in a longer direction is bended and which is enlarged to a shape along a cable routing path, has a plurality of insulation wires 2 capable of coating a single wire conductor 5 with an insulator 6 and holding a shape with the shape along the cable routing path, and is constituted by twisting the plurality of insulation wires 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle conductive path and a wire harness.

  In a vehicle, a vehicle conductive path such as a cable is arranged along a predetermined routing route. When a flexible vehicle conductive path is used as the vehicle conductive path, the vehicle conductive path is placed at a predetermined location on the vehicle body. It is necessary to fix to the wiring, and it takes time for wiring work.

  Therefore, conventionally, a wiring work is facilitated by using a vehicle conductive path that is partially bent in the longitudinal direction and shaped in advance in a shape along the routing path.

  In Patent Document 1, a plurality of insulated wires having a single wire conductor are arranged in parallel, and a vehicle conductive path configured to hold the shape in a state where the insulated wire is bent by the rigidity of the single wire conductor is described.

JP 2000-82340 A JP 2009-140612 A

  However, since the vehicle conductive path described in Patent Document 1 has a configuration in which a plurality of insulated wires are arranged in parallel, when the vehicle conductive path is bent, each of the insulated wires is arranged one by one. There is a problem that it is necessary to perform a bending process, and the work for bending the vehicle conductive path is troublesome and the manufacturing cost is increased.

  Accordingly, an object of the present invention is to provide a vehicle conductive path and a wire harness that can be easily bent.

  In order to solve the above-mentioned problems, the present invention is a vehicle conductive path in which a part in the longitudinal direction is bent and shaped into a shape along a routing path, and a single wire conductor is covered with an insulator. A vehicle conductive path is provided that includes a plurality of insulated wires capable of maintaining a shape in a shape along the routing route, and is formed by twisting the plurality of insulated wires.

  Moreover, this invention provides the wire harness provided with the said electrically conductive path for vehicles, and the connector electrically connected to the at least one end of the said electrically conductive path for vehicles for the purpose of solving the said subject.

  According to the present invention, it is possible to provide a vehicle conductive path and a wire harness that can be easily bent.

It is a figure which shows the electrically conductive path for vehicles which concerns on one embodiment of this invention, (a) is sectional drawing which shows a cross section perpendicular | vertical to a longitudinal direction, (b) is a figure explaining the twist of an insulated wire. (A) is a schematic block diagram of a wire harness, (b) is the AA sectional view taken on the line.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1A and 1B are diagrams showing a vehicle conductive path according to the present embodiment, in which FIG. 1A is a sectional view showing a section perpendicular to the longitudinal direction, and FIG. 1B is a diagram for explaining twisting of an insulated wire.

  As shown in FIGS. 1 (a) and 1 (b), a vehicle conductive path 1 includes a plurality of insulated wires 2, a braided shield 3 provided so as to cover the periphery of the plurality of insulated wires 2, and a braid. And a cylindrical protective member 4 provided so as to cover the periphery of the shield 3.

  The vehicular conductive path 1 is a vehicular conductive path that is partially bent in the longitudinal direction and shaped into a shape along the routing path, and retains the shape in a state bent to a predetermined shape. It is configured to be able to.

  The insulated wire 2 is configured by covering a single wire conductor 5 with an insulator 6. Here, although the case where three insulated wires 2 are used will be described, the number of insulated wires 2 is not limited to this, and may be two, or four or more. Moreover, in FIG. 1 (a), (b), although the case where the outer diameter of the three insulated wires 2 is equal is shown, the outer diameter of the insulated wires 2 may differ. The insulated wire 2 can hold the shape in a shape along the routing route.

  The single wire conductor 5 is made of a good electrical conductor such as aluminum or copper. In the vehicle conductive path 1, the shape of the vehicle conductive path 1 is held in a bent state by the rigidity of the single wire conductor 5.

  The insulator 6 is made of an insulating resin such as a vinyl chloride resin, a polypropylene resin, a nylon resin, a fluorine resin, or a polyolefin resin. The thickness of the insulator 6 is 0.4 mm or more and 1.2 mm or less. This is because if the thickness of the insulator 6 is less than 0.4 mm, sufficient strength cannot be obtained and there is a risk of breakage. If the thickness exceeds 1.2 mm, the insulated wire 2 becomes larger in diameter and the insulated wire 2 described later. This is because twisting may be difficult.

  The braided shield 3 is configured by braiding a metal strand made of copper or the like, or a conductive filament. The braided shield 3 is for shielding electromagnetic waves radiated from the insulated wires 2, and is provided so as to cover the entire insulated wires 2 over the longitudinal direction of the three insulated wires 2.

  The protection member 4 is for suppressing damage caused by collision of foreign matter such as pebbles with the insulated wire 2 and the braided shield 3, and is made of an insulating resin. In the present embodiment, a bellows-like corrugated tube that is strong against impact and easily deformed is used as the protective member 4.

  Now, in the vehicle conductive path 1 according to the present embodiment, a plurality of insulated wires 2 are twisted together. The braided shield 3 and the protection member 4 are arranged so as to cover the periphery of the twisted insulated electric wire 2.

  By twisting together the plurality of insulated wires 2, the plurality of insulated wires 2 can be handled as a unit, and the twisted insulated wires 2 can be bent together.

  In addition, by twisting a plurality of insulated wires 2, there is no direction that is difficult to bend as compared to the case where the insulated wires 2 are simply bundled. The conductive path 1 can be freely bent.

  Furthermore, in the present embodiment, since the covering (sheath, jacket) is not provided around the plurality of insulated wires 2, the vehicle conductive path 1 can be bent with a smaller bending radius.

  The cross-sectional area of the single wire conductor 5 needs to be a cross-sectional area that can maintain the shape when bent into a desired shape and does not become difficult to twist, and considers the magnitude of the current to be conducted. Determined.

Specifically, the single wire conductor 5 may have a cross-sectional area of 10 mm ² or more and 40 mm ² or less. If the cross-sectional area of the single wire conductor 5 is less than 10 mm ² , it becomes difficult to maintain the shape in the shape along the routing path. If the cross-sectional area of the single wire conductor 5 exceeds 40 mm ² , the insulated wire 2 This is because it becomes difficult to twist the insulated wires 2 together.

More specifically, when the single wire conductor 5 made of aluminum is used, it is desirable that the cross-sectional area is 15 mm ² or more and 40 mm ² or less in consideration of the rigidity of the aluminum. In the case of using one made of copper as a single wire conductor 5, since copper is stiffer than aluminum, it is desirable that the cross-sectional area is 10 mm ² or more 30 mm ² or less.

In addition, although the case where several insulated wires 2 (for example, 5 or less) were used was examined here, when a large number of insulated wires 2 are used, even if the shape of the insulated wires 2 cannot be maintained, It is only necessary that the shape of the insulated wire 2 can be maintained as a whole. In this case, even if the cross-sectional area of the single wire conductor 5 is less than 10 mm ² , it may be permitted.

  In addition, the twist pitch of the insulated wires 2 (the distance in the longitudinal direction where the arbitrary insulated wires 2 are at the same position in the circumferential direction) is desirably 80 mm or greater and 350 mm or less. This is because if the twist pitch is less than 80 mm, it is difficult to twist the insulated wires 2, and if they are twisted together, the insulated wires 2 may be damaged (disconnected or deformed) by the load during twisting. This is because if the twist pitch exceeds 350 mm, the insulated wires 2 are separated and difficult to handle integrally. From the viewpoint of ease of twisting and ease of handling when the insulated wire 2 is handled integrally, the twist pitch of the insulated wire 2 is more preferably 100 mm or more and 300 mm or less.

  When the insulated wires 2 are twisted together, for example, they may be twisted using a twisting apparatus generally used when twisting cables. Further, the bending after twisting the insulated wires 2 may be performed using a bender machine.

  Next, a wire harness using the vehicle conductive path 1 will be described.

  Fig.2 (a) is a schematic block diagram of a wire harness, FIG.2 (b) is the sectional view on the AA line.

  As shown in FIGS. 2A and 2B, the wire harness 21 is electrically connected to at least one end of the vehicle conductive path 1 shaped into a shape along the routing path and the vehicle conductive path 1. And a connected connector 22.

  In the present embodiment, the wire harness 21 further includes a second vehicle conductive path 26 having a plurality of second insulated wires 23 in which the stranded wire conductor 24 is covered with an insulator 25. Since the 2nd insulated wire 23 which has the twisted conductor 24 is used for the 2nd electrically conductive path 26 for vehicles, it has flexibility.

  The second vehicle conductive path 26 has three second insulated wires 23 corresponding to the three insulated wires 2 of the vehicle conductive path 1, and a protective member comprising a braided shield 3 and a corrugated tube around the second insulated wires 23. 4 are sequentially provided.

  A second vehicle conductive path 26 is connected to both ends of the vehicle conductive path 1 via a connecting portion 27. In the connection portion 27, the single wire conductor 5 on the vehicle conductive path 1 side and the stranded wire conductor 24 on the second vehicle conductive path 26 side are electrically connected by, for example, ultrasonic bonding (ultrasonic welding). .

  The wire harness 21 connects, for example, a motor of a vehicle and an inverter device, and a motor (not shown in the drawing) of the second vehicle conductive path 26 on the opposite side to the vehicle conductive path 1 is attached to the motor. A connector 22 is provided for connection to the connector. That is, in the wire harness 21, the vehicle conductive path 1 and the connector 22 are electrically connected via the second vehicle conductive path 26.

  At the end of the other (right side of the drawing) second vehicle conductive path 26 opposite to the vehicle conductive path 1, three second insulated wires 23 are exposed, and each of the exposed second insulated wires 23 is exposed. A connection terminal 28 for connecting to the inverter device is provided at the end.

  In the wire harness 21, the vehicle conductive path 1 and the connector 22 are electrically connected via a flexible second vehicle conductive path 26, and therefore, a connector to an apparatus such as an inverter device or a battery. Connection of 22 (or connection terminal 28) is easy.

(Operation and effect of the embodiment)
As described above, the vehicle conductive path 1 according to the present embodiment includes a plurality of insulated wires 2 in which a single wire conductor 5 is covered with an insulator 6 and is formed by twisting the plurality of insulated wires 2 together. ing.

  By comprising in this way, it becomes possible to handle the several insulated wire 2 integrally, and it becomes possible to bend the several insulated wire 2 collectively. Therefore, it is not necessary to bend each insulated wire as in the prior art, and the bending work is facilitated, and the manufacturing cost can be reduced.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] A vehicular conductive path (1) partially bent in the longitudinal direction and shaped into a shape along a routing path, wherein a single wire conductor (5) is covered with an insulator (6), A conductive path for a vehicle (comprising a plurality of insulated wires (2) capable of holding the shape in a shape along the route of routing, and configured by twisting the plurality of insulated wires (2) together) 1).

[2] The vehicle conductive path (1) according to [1], wherein the cross-sectional area of the single wire conductor (5) is 10 mm ² or more and 40 mm ² or less.

[3] The vehicle conductive path (1) according to [1] or [2], wherein a twist pitch of the insulated wire (5) is 80 mm or more and 350 mm or less.

[4] The vehicle conductive path (1) according to any one of [1] to [3], and a connector (22) electrically connected to at least one end of the vehicle conductive path (1). The wire harness (21) provided with.

[5] A second vehicle conductive path (26) having a plurality of second insulated wires (23) in which a stranded wire conductor (24) is covered with an insulator (25), and the vehicle conductive path (1) The wire harness (21) according to [4], wherein the connector (22) and the connector (22) are electrically connected via the second vehicle conductive path (26).

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  The present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

  For example, although not mentioned in the above embodiment, the vehicle conductive path 1 may include a signal line such as a control line for an air conditioner. In this case, the signal line may be twisted together with the plurality of insulated wires 2, or may be arranged along the twisted insulated wires 2.

DESCRIPTION OF SYMBOLS 1 ... Vehicle conductive path 2 ... Insulated wire 3 ... Braided shield 4 ... Protective member 5 ... Single wire conductor 6 ... Insulator

Claims (5)

A vehicle conductive path that is partially bent in the longitudinal direction and shaped into a shape along the routing path,
A single wire conductor is covered with an insulator, and includes a plurality of insulated wires capable of maintaining the shape along the routing path,
It is configured by twisting together the plurality of insulated wires,
Conductive path for vehicles. The single wire conductor has a cross-sectional area of 10 mm ² or more and 40 mm ² or less.
The conductive path for a vehicle according to claim 1. The twist pitch of the insulated wire is 80 mm or more and 350 mm or less,
The electrically conductive path for vehicles according to claim 1 or 2. The vehicle conductive path according to any one of claims 1 to 3,
A connector electrically connected to at least one end of the vehicle conductive path;
Wire harness with Comprising a second vehicle conductive path having a plurality of second insulated wires in which a stranded conductor is covered with an insulator;
The vehicle conductive path and the connector are electrically connected via the second vehicle conductive path.
The wire harness according to claim 4.

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