CN-116154516-B - Wire harness

Abstract

The purpose is to provide a technique capable of bending a wire harness between one end and the other end in a direction in which the wire is easily twisted. A wire harness (10) is provided with a plurality of wires (20), a1 st terminal block (30), and a2 nd terminal block (40). Each wire includes a stranded conductor (21) and an insulating coating (26) covering the stranded conductor. One end of the plurality of wires is held by a1 st holding part (31) of the 1 st terminal block, and the other end is held by a2 nd holding part of the 2 nd terminal block. The connecting posture in the wire harness is a posture in which the plurality of wires are bent between the 1 st holding portion and the 2 nd holding portion, and is a posture in which the plurality of wires (20) are twisted. The direction of twisting the stranded conductors in at least half of the plurality of wires is a direction in which twisting of the stranded conductors is tightened by the twisting.

Inventors

• KOBAYASHI KENTA
• SAKAI TSUBASA

Assignees

• 住友电装株式会社

Dates

Publication Date

20260505

Application Date

20221110

Priority Date

20211122

Claims (8)

1. 1. A wire harness is provided with a plurality of wires, a1 st terminal block and a2 nd terminal block, Each of the plurality of wires includes a stranded conductor and an insulating coating covering the stranded conductor, The 1 st terminal block includes a1 st holding portion that holds one end portion of the plurality of electric wires and a plurality of 1 st terminals each electrically connected to the one end portion of a corresponding electric wire of the plurality of electric wires, The 2 nd terminal block includes a 2 nd holding portion that holds the other end portions of the plurality of electric wires, and a plurality of 2 nd terminals each electrically connected to the other end portion of a corresponding electric wire of the plurality of electric wires, The plurality of electric wires are arranged between the 1 st holding portion and the 2 nd holding portion in a direction intersecting a direction connecting the 1 st holding portion and the 2 nd holding portion, In the case where the posture in which the plurality of wires extend straight between the 1 st holding portion and the 2 nd holding portion is set to the 1 st posture, The connection posture of the 1 st terminal block and the 2 nd terminal block to the respective connection partners is a posture in which the plurality of wires are bent between the 1 st holding portion and the 2 nd holding portion, and is a2 nd posture in which the plurality of wires are twisted when bent from the 1 st posture, The twisting direction of the stranded conductor in all of the plurality of wires is a direction in which twisting of the stranded conductor is tightened by the twisting when the plurality of wires are bent from the 1 st posture to the 2 nd posture.
2. 2. The wire harness according to claim 1, wherein, The 2 nd posture is a posture in which the plurality of electric wires are bent around an axis along a parallel direction of the plurality of electric wires, and the one end portion and the other end portion are offset in the parallel direction of the plurality of electric wires by a diameter of the electric wires or more.
3. 3. The wire harness according to claim 2, wherein, In the 2 nd posture, an angle formed by a direction in which the plurality of wires extend from the 1 st holding portion and a direction in which the plurality of wires extend from the 2 nd holding portion is 60 degrees or more and 120 degrees or less, and a parallel direction of the plurality of wires in the 1 st holding portion and a parallel direction in the 2 nd holding portion are parallel.
4. 4. The wire harness according to any one of claim 1 to claim 3, wherein, The number of the plurality of wires is more than 3.
5. 5. The wire harness according to any one of claim 1 to claim 3, wherein, The insulation coating has a Shore A hardness of 40 to 100 as measured by a durometer in accordance with JISK 6253.
6. 6. The wire harness according to any one of claim 1 to claim 3, wherein, The insulating coating portion is made of crystalline resin.
7. 7. The wire harness according to any one of claim 1 to claim 3, wherein, The cross-sectional area of the stranded conductor is 10sq or more and 50sq or less, The length of the electric wire between the 1 st holding part and the 2 nd holding part is more than 100mm and less than 300 mm.
8. 8. The wire harness according to any one of claim 1 to claim 3, wherein, Each of the 1 st holding portions and the 2 nd holding portions is a resin molded portion in which the plurality of wires are insert molded as an insert.

Description

Wire harness Technical Field The present disclosure relates to wire harnesses. Background Patent document 1 discloses a wiring assembly for a machine, which includes a wiring member for a machine including a plurality of conductors and two connection portions provided at both ends of the conductors, and which is wired in a bent state in the machine, and which includes a machine body and a machine case accommodating the machine body. Prior art literature Patent literature Patent document 1 Japanese patent laid-open No. 2020-98786 Disclosure of Invention Problems to be solved by the invention A wire harness of a wiring assembly for a machine such as described in patent document 1 is expected to be easily bent in a direction in which a wire is twisted between one end and the other end. Accordingly, an object is to provide a technique capable of bending a wire harness between one end and the other end in a direction in which the wire is easily twisted. Means for solving the problems The wire harness of the present disclosure is provided with a plurality of wires each including a stranded conductor and an insulation coating covering the stranded conductor, a1 st terminal block including a1 st holding portion and a plurality of 1 st terminals, the 1 st holding portion holding one end portion of the plurality of wires, the 1 st terminals each being electrically connected to the one end portion of a corresponding wire of the plurality of wires, the 2 nd terminal block including a 2 nd holding portion and a plurality of 2 nd terminals, the 2 nd holding portion holding the other end portion of the plurality of wires, the 2 nd terminals each being electrically connected to the other end portion of the corresponding wire of the plurality of wires, the plurality of wires being arranged between the 1 st holding portion and the 2 nd holding portion in a direction intersecting a direction connecting the 1 st holding portion and the 2 nd holding portion, the plurality of wires being bent under a state in which the 1 st wires are each straight extending between the 1 st holding portion and the 2 nd holding portion are bent in a state in which the 1 st terminal is bent in a state of the plurality of wires being bent from the 2 nd holding portion to the 2 nd wire, and the twisted wire is held in a state in which the plurality of wires are twisted wire is bent in a 2 nd state being bent state, and the twisted wire is bent from the 2 nd wire is bent in a state in which the plurality of wires are bent state in the 2 is bent state. Effects of the invention According to the present disclosure, the wire harness can be easily bent in a direction in which torsion is generated in the electric wire between one end and the other end. Drawings Fig. 1 is a perspective view showing a wire harness of the embodiment. Fig. 2 is a side view showing a wire harness of the embodiment. Fig. 3 is a front view showing a wire harness of the embodiment. Fig. 4 is a sectional view showing an electric wire. Fig. 5 is an explanatory diagram showing a stranded conductor of S-lay. Fig. 6 is an explanatory diagram showing a stranded conductor of Z-lay. Fig. 7 is a front view of the wire harness showing the 1 st posture. Fig. 8 is a front view showing a wire harness of modification 1. Fig. 9 is a front view showing a wire harness of modification 2. Detailed Description [ Description of embodiments of the present disclosure ] Embodiments of the present disclosure will be first described. The wire harness of the present disclosure is as follows. (1) The wire harness is provided with a plurality of wires, a1 st terminal block and a2 nd terminal block, each of the plurality of wires includes a stranded conductor and an insulating coating portion covering the stranded conductor, the 1 st terminal block includes a1 st holding portion and a plurality of 1 st terminals, the 1 st holding portion holds one end portion of the plurality of wires, each of the plurality of 1 st terminals is electrically connected to the one end portion of a corresponding wire of the plurality of wires, the 2 nd terminal block includes a2 nd holding portion and a plurality of 2 nd terminals, the 2 nd holding portion holds the other end portion of the plurality of wires, each of the plurality of 2 nd terminals is electrically connected to the other end portion of a corresponding wire of the plurality of wires, the plurality of wires are arranged between the 1 st holding portion and the 2 nd holding portion in a direction crossing a direction connecting the 1 st holding portion and the 2 nd holding portion, the plurality of wires are bent in a state in which the 1 st holding portion and the 2 nd holding portion are straight, the plurality of wires are bent in a state in which the 1 st holding portion is straight and the 2 nd holding portion is bent in a state in which the plurality of wires are connected to the 2 nd wire holding portion and the 2 nd wire is twisted in a state in which the plu