JP2021046052A - Wire harness - Google Patents

Abstract

To provide a wire harness capable of improving durability of a high speed transmission wiring material.SOLUTION: A wire harness WH1 includes: a high speed transmission wiring material WA which extends in a first axial direction X1 along a first axial center 1x; a plurality of electric wires WB which extends in a second axial direction X2 along a second axial center 2x, and is different from the high speed transmission wiring material WA; and a pair of restriction members 2a and 2b which restricts the high speed transmission wiring material WA and the plurality of electric wires WB at an interval along the second axial direction X2. A quantity of the high speed transmission wiring material WA is smaller than that of the electric wires WB. A length along the first axial direction X1 between the pair of restriction members 2a and 2b is 1.1 to 3.3 times as long as a length along the second axial direction X2 in the electric wires WB between the pair of restriction members 2a and 2b.SELECTED DRAWING: Figure 3

Description

The present invention relates to a wire harness.

As a conventional wire harness, for example, Patent Document 1 discloses a power / optical fiber composite cable obtained by combining a power cable and an optical fiber cable. In the power / optical fiber composite cable, at the optical fiber cable connection portion, the extra length accommodating sleeve for reconnection in the optical fiber cable is formed in an elliptical shape and externally attached to the valley portion between adjacent power cables.

Japanese Unexamined Patent Publication No. 7-212952

By the way, the wire harness described in Patent Document 1 described above has room for further improvement from the viewpoint of improving the durability of the high-speed transmission wiring material which is an optical fiber cable.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire harness capable of improving the durability of a wiring material for high-speed transmission.

In order to solve the above problems, the wire harness according to the present invention has a high-speed transmission wiring material extending in the first axial direction along the first axial center and a second axial direction along the second axial center, respectively. A pair of restraints that extend and restrain a plurality of electric wires different from the high-speed transmission wiring material, and the high-speed transmission wiring material and the plurality of electric wires at intervals along the second axial direction. The number of the high-speed transmission wiring material including the members is smaller than the number of the electric wires, and the length between the pair of restraint members along the first axial direction is between the pair of restraint members. It is characterized in that it is 1.1 to 3.3 times the length of the electric wire along the second axial direction.

Further, in the wire harness, it is preferable to have an intermediate restraint member for restraining the high-speed transmission wiring material and the plurality of electric wires in the intermediate portion between the pair of restraint members in the second axial direction.

Further, in the wire harness, the high-speed transmission wiring material and the electric wire have a bent bent portion, and the high-speed transmission wiring material is arranged on the bent outer side of the bent portion. Is preferable.

Further, in the wire harness, it is preferable that the pair of restraint members are provided in a movable range in which the high-speed transmission wiring material and the electric wire can be moved in a wired state.

Further, in the wire harness, the high-speed transmission wiring material preferably includes an electric wire having two or more insulating layers or an optical fiber cable that propagates light.

In the wire harness according to the present invention, when the high-speed transmission wiring material and a plurality of electric wires are bent, the force applied to the electric wires can be increased, while the force applied to the high-speed transmission wiring material can be decreased. it can. As a result, the durability of the high-speed transmission wiring material can be improved.

FIG. 1 is a plan view showing a part of a vehicle to which the wire harness according to the first embodiment is applied. FIG. 2 is a perspective view of the wire harness according to the first embodiment in a state where the opening of the vehicle body is closed by a movable member. FIG. 3 is a perspective view showing a state before arranging the optical fiber cable and each electric wire in the wire harness according to the first embodiment, and no force is applied between one end and the other end. Is. FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. FIG. 5 is a perspective view of an optical fiber cable which is a wiring material for high-speed transmission according to the first embodiment. FIG. 6 is a perspective view showing a state before arranging the optical fiber cable and each electric wire in the wire harness according to the first embodiment, and a state in which a force is applied between one end and the other end. is there. FIG. 7 is an end view of the arrow VII-VII line of FIG. FIG. 8 is a perspective view of the wire harness according to the first embodiment in a state where the movable member is moved to open the opening of the vehicle body. FIG. 9 is a perspective view of the wire harness according to the second embodiment. FIG. 10 is a perspective view of a twisted pair electric wire which is a wiring material for high-speed transmission according to the second embodiment. FIG. 11 is a perspective view of the wire harness according to the first modification of the second embodiment. FIG. 12 is a perspective view of the wire harness according to the second modification of the second embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

[First Embodiment]
FIG. 1 is a plan view showing a part of a vehicle to which the wire harness WH1 according to the first embodiment is applied. FIG. 2 is a perspective view of the wire harness WH1 according to the first embodiment in a state where the opening of the vehicle body BD is closed by the movable member D. FIG. 3 shows a state before arranging the optical fiber cable W1 and each electric wire WB in the wire harness WH1 according to the first embodiment, and one end WA1c, WB1c and the other end WA1d of the optical fiber cable W1 and the electric wire WB are shown. , Is a perspective view showing a state in which no force is applied between the WB1d and the WB1d. FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. FIG. 5 is a perspective view of the optical fiber cable W1 which is the wiring material WA for high-speed transmission according to the first embodiment. FIG. 6 shows a state before arranging the optical fiber cable W1 and each electric wire WB in the wire harness WH1 according to the first embodiment, and one end WA1c, WB1c and the other end of the optical fiber cable W1 and each electric wire WB. It is a perspective view which shows the state which the force is applied between WA1d and WB1d. FIG. 7 is an end view of the arrow VII-VII line of FIG. FIG. 8 is a perspective view of the wire harness WH1 according to the first embodiment in a state where the movable member D is moved to open the opening of the vehicle body BD. In addition, in FIG. 2 and FIG. 8, the grommet 3 is shown by a solid line, and in the other figures, the grommet 3 is omitted. Further, in the following description, of the first direction, the second direction, and the third direction intersecting (orthogonal) with each other, the first direction is referred to as "second axial direction X2", and the second direction is referred to as "first direction". It is called "intersection direction Y", and the third direction is called "second intersection direction Z". Here, the second axial direction X2, the first crossing direction Y, and the second crossing direction Z are orthogonal to each other. Further, FIGS. 2 and 8 are shown by omitting the details of the configuration of the electric wire WB and the optical fiber cable W1 and omitting the number of the electric wires WB. Further, FIGS. 4 and 7 omit the details of the configuration of the optical fiber cable W1.

The wire harness WH1 according to the first embodiment shown in FIGS. 1 and 2 bundles a plurality of wiring materials W used for power supply and signal communication, for example, for connection between devices mounted on a vehicle. As an assembly part, a plurality of wiring materials W are connected to each device by a connector or the like. The wire harness WH1 of the present embodiment includes, for example, a high-speed transmission wiring material WA constituting the wiring material W, a plurality of electric wires WB, a pair of restraint members 2a and 2b, and a grommet 3.

The wire harness WH1 of the present embodiment includes a vehicle body BD having an opening in the vehicle and a movable member D such as a side door for a front seat which is connected to the vehicle body BD via a connecting member such as a hinge to open and close the opening. It is installed across between. Here, the wire harness WH1 is bridged between the vehicle body BD and the movable member D at the portion of the opening of the vehicle body BD near the hinge, and the movable member D rotates about the rotation axis Dx of the hinge. To do.

When the opening is changed from the closed state to the open state due to the movement of the movable member D, the wiring material W is deformed between the vehicle body BD and the movable member D as described later. By repeating the opening and closing of the movable member D with respect to the opening of the vehicle body BD, the wiring material W is deformed each time. In such a configuration, in the wire harness WH1 according to the embodiment, as will be described in detail below, the quantity of the high-speed transmission wiring material WA and the electric wire WB is changed, and the pair of restraint members 2a, For high-speed transmission, the length along the first axial direction X1 in the high-speed transmission wiring material WA between 2b and the length along the second axial direction X2 in the electric wire WB between the pair of restraint members 2a and 2b are different. The durability of the wiring material WA is improved.

In addition, the wire harness WH1 further includes an exterior member such as a fixture, a connector, a corrugated tube, and a protector, a wiring material WA for high-speed transmission as a wiring material W, and a metal rod different from the electric wire WB. It may be composed of. The metal rod is formed by covering the outside of a conductive rod-shaped member with an insulating covering portion.

The high-speed transmission wiring material WA is typically a wiring material W used when communicating at a data transmission speed of 100 Mbbs or more. The high-speed transmission wiring material WA includes an electric wire having two or more insulating layers or an optical fiber cable W1. The wire harness WH1 of the first embodiment uses the optical fiber cable W1 as the wiring material WA for high-speed transmission.

3 and 4 show a state before the optical fiber cable W1 and the plurality of electric wires WB are arranged, and are between one end WA1c and WB1c of the optical fiber cable W1 and each electric wire WB and the other end WA1d and WB1d. It is a perspective view which shows the state which the force is not applied to.

In the optical fiber cable W1, for example, one end WA1c in the first axial direction X1 is connected to a communication device provided on the vehicle body BD via a connector, and the other end WA1d in the first axial direction X1 is provided on the door mirror via the connector. It is connected to an imaging device such as a CCD camera. The optical fiber cable W1 extends in the first axial direction X1 along the first axial center 1x. The optical fiber cable W1 is in a loose state inside between the pair of restraint members 2a and 2b in the second axial direction X2, and has an extra length portion WA1g. Such an optical fiber cable W1 is in a stretched state on the outside between the pair of restraint members 2a and 2b in the first axial direction X1. That is, the optical fiber cable W1 has no extra length portion on the outside between the pair of restraint members 2a and 2b in the first axial direction X1, and is arranged linearly along the first axial direction X1. Further, the first axial center 1x of the optical fiber cable W1 is arranged along a straight line on the outside between the pair of restraint members 2a and 2b. That is, the first axial direction X1 and the second axial direction X2 match on the outside between the pair of restraint members 2a and 2b.

The optical fiber cable W1 is a cable that propagates light, and includes a core 11, a clad layer 12, an insulating coating layer 13, and a sheath 14, as shown in FIG. The optical fiber (Plastic Optical Fiber) cable W1 includes, for example, an SI type (Step Index type) optical fiber cable and a GI type (Graded Index type) optical fiber cable. The core 11 is, for example, a stone glass pipe formed linearly and hollowly along the first axial direction X1 along the axial center 1x of the optical fiber cable W1 and is a peripheral surface of the core 11. Is formed so as to be surrounded by the clad layer 12. The refractive index of the core 11 is formed to be different from the refractive index of the clad layer 12, and totally reflects light at the interface between the core 11 and the clad layer 12. The clad layer 12 is formed in a tubular shape having a predetermined thickness. The clad layer 12 is formed of a material such as quartz glass. By configuring the core 11 and the clad layer 12 as described above, light is propagated in the core 11. The insulating coating layer 13 is located on the outer peripheral surface of the clad layer 12 and is formed of an insulating synthetic resin. The sheath 14 is an outer peripheral surface of the insulating coating layer 13, is located on the outermost side in the radial direction of the optical fiber cable W1, and is formed of an insulating synthetic resin.

As shown in FIG. 4, each electric wire WB covers the outside of a conductor portion (core wire) WB1 made of a conductive metal material with an insulating covering portion WB2. Each electric wire WB is typically a wiring material W used when communicating at a data transmission speed of less than 100 Mbbs, or a wiring material W that supplies electric power to each device. Each electric wire WB is typically a single-core electric wire or a stranded electric wire. The single-core wire is formed by covering the outside of a conductor portion WB1 made of a single rod-shaped conductive metal material with an insulating covering portion WB2. The stranded electric wire is formed by twisting a plurality of conductive strands into one conductor portion WB1 and covering the outside of the conductor portion WB1 with an insulating covering portion WB2. Each electric wire WB extends in the second axial direction X2 along the second axial center 2x and is arranged along a straight line (see FIG. 3). Each electric wire WB is in a state of being stretched inside the pair of restraint members 2a and 2b in the second axial direction X2, and is in a state of being stretched outside between the pair of restraint members 2a and 2b. That is, each electric wire WB does not have an extra length portion on either the inside or the outside between the pair of restraint members 2a and 2b in the second axial direction X2, and is a straight line along the second axial direction X2. Arranged in a shape.

The pair of restraint members 2a and 2b shown in FIG. 3 are made of, for example, a resin tape. The pair of restraint members 2a and 2b restrain the optical fiber cable W1 and the plurality of electric wires WB at intervals along the second axial direction X2. In other words, the optical fiber cable W1 and the plurality of electric wires WB are constrained by a pair of restraining members 2a and 2b at intervals along the second axial direction X2. One of the restraint members 2a is arranged, for example, inside the grommet 3 in the vicinity of the vehicle body side fixing portion 31 described later (see FIG. 2). The other restraint member 2b is arranged, for example, inside the grommet 3 in the vicinity of the movable member side fixing portion 32 described later (see FIG. 2). In the wire harness WH1 according to the present embodiment, a plurality of electric wires WB extending to the optical fiber cable W1 are restrained by a pair of restraint members 2a and 2b to form a wiring material bundle WC (see FIG. 4). The diameter φ (see FIG. 4) of the wiring material bundle WC in the plane orthogonal to the second axial direction X2 in the optical fiber cable W1 and the electric wire WB is preferably 7 to 40 [mm] or more.

In the wire harness WH1 according to the present embodiment, the quantity of the optical fiber cable W1 is smaller than the quantity of the electric wire WB. More specifically, in the present embodiment, the number of optical fiber cables W1 is one and the number of electric wires WB is 36. Further, in the optical fiber cable W1, the length along the first axial direction X1 between the pair of restraint members 2a and 2b is the length along the second axial direction X2 in the electric wire WB between the pair of restraint members 2a and 2b. It is 1.1 to 3.3 times. The basis of the numerical values will be explained in detail below.

In a state where a plurality of electric wires WB are bent as described later, if the radius of curvature of the electric wire WB arranged on the innermost side of the bent portion WB1f is Rb and the angle of the bent portion WB1f is θ, the electric wires WB are arranged on the innermost side. The length WBL along the second axial direction X2 of the electric wire WB can be calculated by the following formula.
WBL = 2 × π × Rb × (θ / 360)

When the high-speed transmission wiring material WA is bent and the high-speed transmission wiring material WA is arranged on the outermost side (arranged on the bending outer side) of the plurality of electric wires WB, the high-speed transmission wiring material WA is the first. The length WAL along the uniaxial direction X1 can be calculated by the following formula. However, it is assumed that the angle of the bent portion WA1f is the same as the angle of the bent portion WB1f, and high-speed transmission is performed with the innermost electric wire WB (inner arranged electric wire WBi) in a plane orthogonal to the second axial direction X2. Let φ be the distance from the wiring material WA.
WAL = 2 × π × (Rb + φ) × (θ / 360)

Further, the length (WAL) of the high-speed transmission wiring material WA along the first axial direction X1 with respect to the length (WBL) of the innermost electric wire WB (innerly arranged electric wire WBi) along the second axial direction X2. Magnification (TI) can be calculated by the following formula.
TI = WAL / WBL

In the wire harness WH1 applied between the vehicle body BD and the movable member D in the vehicle, the range of Rb is 15 to 50 [mm], the range of φ is 5 to 35 [mm], and θ. The range is 70 to 160 [°]. The magnification (TI) is calculated by applying these numerical values to the above formula. When the magnification (TI) is the largest, Rb is the minimum value of 15 [mm] and φ is the maximum value of 35 [mm], and the maximum value of the magnification is 3.3. .. On the other hand, when the magnification (TI) is the smallest, Rb is the maximum value of 50 [mm] and φ is the minimum value of 5 [mm], and the minimum value of the magnification is 1.1. Is. Therefore, the range of magnification (TI) is 1.1 times or more and 3.3 times or less (1.1 to 3.3).

That is, if the magnification (TI) is smaller than 1.1, the radius of curvature of the high-speed transmission wiring material WA becomes large, which may increase the force applied to the high-speed transmission wiring material WA. On the other hand, if the magnification (TI) is larger than 3.3, the force applied to the high-speed transmission wiring material WA cannot be efficiently reduced, while the high-speed transmission wiring material WA becomes unnecessarily long. There is a risk. As a result, the magnification (TI) is preferably 1.1 to 3.3 times. In the wire harness WH1 applied between the vehicle body BD and the movable member D in the vehicle, the length between the pair of restraint members 2a and 2b along the second axial direction X2 is preferably 50 to 250 [mm].

Further, the difference between the length WAL along the first axial direction X1 of the high-speed transmission wiring material WA and the length WBL along the second axial direction X2 of the innermost electric wire WB (that is, the extra length portion (that is, the extra length portion (that is, the extra length portion) The length (Lx) of WA1g) can be calculated by the following formula.
Lx = WAL-WBL

It is assumed that the length between the pair of restraint members 2a and 2b along the second axial direction X2 is the length along the second axial direction X2 of the innermost electric wire WB. Further, it is considered that the length of the second axial direction X2 between the pair of restraint members 2a and 2b is 50 to 250 [mm], and the magnification (TI) is 1.1 to 3.3 times. Then, the WAL becomes 55 to 825 [mm]. Therefore, since WAL is 55 to 825 [mm] and WBL is 50 to 250 [mm], the difference between WAL and WBL (that is, the length (Lx) of the extra length portion (WA1g)) is 5 to 5. It is 575 [mm].

FIG. 6 shows a state before the optical fiber cable W1 and the plurality of electric wires WB are arranged, in which the optical fiber cable W1 and one end WA1c and WB1c of each electric wire WB and the other ends WA1d and WB1d are close to each other. It is a perspective view which shows the state which was bent to. Further, FIG. 7 is an end view of the arrow VII-VII line of FIG. The optical fiber cable W1 is deformed so as to bend between one end WA1c and the other end WA1d by applying a force in the second crossing direction Z that intersects the second axial direction 2X. Further, the electric wire WB is deformed so as to be bent by applying a force between one end WB1c and the other end WB1d in the second intersection direction Z intersecting the second axial direction 2X. In other words, the optical fiber cable W1 and the plurality of electric wires WB have bent portions WA1f and WB1f that are bent and deformed by applying a force to the second crossing direction Z that intersects the second axial direction 2X. Further, the optical fiber cable W1 is arranged on the outermost side in the circumferential direction in the wiring material bundle WC. In other words, the optical fiber cable W1 is arranged on the outside of the bend in the bent portions WA1f and WB1f. That is, in the bent and deformed state, the radius of curvature of the optical fiber cable W1 is larger than the radius of curvature of the electric wire WB. Further, the plurality of electric wires WB have an inner arranged electric wire WBi arranged on the innermost side in the circumferential direction in the bent portion WB1f (see FIG. 4).

The grommet 3 shown in FIG. 2 is exteriorized on the outer peripheral surface of the wiring material W, prevents the wiring material W from being exposed to the outside, and is used for the purpose of protecting and waterproofing the wiring material W. Such a grommet 3 is integrally formed of a flexible elastic material having low rigidity such as rubber or a thermoplastic elastomer, and has a vehicle body side fixing portion 31, a movable member side fixing portion 32, and a tubular portion 33. And have. The grommet 3 is mounted with the vehicle body side fixing portion 31 in close contact with the first through hole 101h formed in the first panel 101 of the vehicle body BD with the wiring material W inserted therein, and the movable member D. The movable member side fixing portion 32 is closely attached to the second through hole 102h formed in the second panel 102. That is, the optical fiber cable W1 and the plurality of electric wires WB are inserted into the first opening 31s of the vehicle body side fixing portion 31, the insertion space 33s of the tubular portion 33, and the second opening 32s of the movable member side fixing portion 32. By doing so, the cables are distributed between the vehicle body BD and the movable member D. Therefore, the grommet 3 can distribute the internal wiring material W in a watertight manner even if the grommet 3 has a portion where the wiring material W is exposed to the outside.

FIG. 8 shows a wire harness WH1 in a state where the optical fiber cable W1 and a plurality of electric wires WB are arranged and the movable member D opens the opening of the vehicle body BD. By opening and closing the movable member D with respect to the vehicle body BD, the central portions WA1e and WB1e of the portions along the circumferential direction of the turning axis Dx of the optical fiber cable W1 and the plurality of electric wires WB can be largely moved, and the central portions WA1e and WB1e The adjacent portion also moves in conjunction with the central portions WA1e and WB1e. Therefore, the optical fiber cable W1 and the electric wire WB are movable and deformable in a movable range of 1T including the central portions WA1e and WB1e and the portions adjacent to the central portions WA1e and WB1e. The pair of restraint members 2a and 2b of the present embodiment are provided in the movable range 1T. More specifically, the pair of restraint members 2a and 2b are arranged at both ends of the movable range 1T. In other words, the pair of restraint members 2a and 2b are provided in the movable range 1T that can move in the arranged state in the optical fiber cable W1 and the electric wire WB. Further, in the wire harness WH1 according to the present embodiment, the central portion WA1e of the optical fiber cable W1 becomes the bent portion WB1f and the central portion WB1e of the plurality of electric wires WB becomes the bent portion WB1f as the movable member D opens and closes.

In the wire harness WH1 configured as described above, the case where the movable member D is moved with respect to the vehicle body BD will be described in detail below.

First, in the vehicle, as shown in FIG. 8, the movable member D is moved by operating the door handle with respect to the movable member D in the state where the opening of the vehicle body BD is closed, and the opening of the vehicle body BD is opened. It is left open. At this time, the movable member D rotates about the turning axis Dx, and the wire harness WH1 provided so as to bridge between the vehicle body BD and the movable member D is provided between the vehicle body BD and the movable member D. When a force is applied to the located movable range 1T, it is deformed as follows. That is, when a force is applied to the second crossing direction Z that intersects the second axial direction X2, the optical fiber cable W1 and the electric wire WB are bent at the bent portions WA1f and WB1f.

At this time, in the wire harness WH1 according to the present embodiment, the quantity of the optical fiber cable W1 is smaller than the quantity of the electric wires WB, and the lengths of the pair of restraint members 2a and 2b along the first axial direction X1 are paired. It is 1.1 to 3.3 times the length along the second axial direction X2 in the electric wire WB between the restraint members 2a and 2b. Therefore, in the wire harness WH1 according to the present embodiment, when a force is applied to the optical fiber cable W1 and the electric wire WB between the pair of restraint members 2a and 2b, a large force is applied to the electric wire WB and the optical fiber cable. The force applied to W1 can be reduced.

After that, in the vehicle, the movable member D is moved and the opening of the vehicle body BD is closed by operating the door handle with respect to the movable member D in the state where the opening of the vehicle body BD is open. At this time, the force applied to the optical fiber cable W1 and the electric wire WB is removed, and the optical fiber cable W1 and the electric wire WB return to the initial positions.

The wire harness WH1 according to the embodiment described above has the following configuration. The quantity of the optical fiber cable W1 is smaller than the quantity of the electric wire WB, and the length along the first axial direction X1 between the pair of restraint members 2a and 2b is the second in the electric wire WB between the pair of restraint members 2a and 2b. It is 1.1 to 3.3 times the length along the axial direction X2. Therefore, in the wire harness WH1 according to the present embodiment, when a force is applied to the optical fiber cable W1 and the electric wire WB by bending the optical fiber cable W1 and the electric wire WB between the pair of restraint members 2a and 2b. , A large force is applied to the electric wire WB, and the force applied to the optical fiber cable W1 can be reduced. As a result, the wire harness WH1 according to the present embodiment can suppress the application of a large force to the optical fiber cable W1, so that the core 11 and the clad layer 12 are protected and the durability of the optical fiber cable W1 is improved. Can be improved. Moreover, the wire harness WH1 does not restrain the optical fiber cable W1 and the plurality of electric wires WB between the pair of restraint members 2a and 2b in the second axial direction X2, and the optical fiber cable W1 and the plurality of wires WB are not restrained. It can move to and from the electric wire WB. Therefore, even if the optical fiber cable W1 is twisted in the circumferential direction by applying a force in the circumferential direction of the optical fiber cable W1 and the plurality of electric wires WB, the optical fiber cable W1 has an extra length portion WA1g. .. As a result, a large twisting force is not applied to the optical fiber cable W1, and the durability of the optical fiber cable W1 can be improved. Therefore, the wire harness WH1 according to the present embodiment can reliably transmit the moving image and the image captured by the image pickup device provided on the door mirror to the vehicle body BD, and can cope with the increase in the amount of information. .. Further, the wire harness WH1 improves the durability of the optical fiber cable W1 by changing the configuration of the arrangement of the optical fiber cable W1 and the plurality of electric wires WB without changing the configuration of the optical fiber cable W1. be able to. Therefore, this wire harness WH1 can exhibit the above-mentioned actions and effects at low cost. Further, in a state where the plurality of electric wires WB are bent, they are arranged on the outermost side of the bent portion WB1f with respect to the length along the second axial direction X2 of the inner arranged electric wire WBi arranged on the innermost side of the bent portion WB1f. Since the magnification of the length of the high-speed wiring wire WA along the first axis direction is 1.1 to 3.3, the above-mentioned actions and effects can be obtained.

Further, this wire harness WH1 has the following configuration. The optical fiber cable W1 and the electric wire WB have bent portions WA1f and WB1f, and the optical fiber cable W1 is arranged outside the bent portion WA1f and WB1f. Therefore, the wire harness WH1 according to the present embodiment can suppress the application of excessive stress to the optical fiber cable W1 by making the radius of curvature of the optical fiber cable W1 larger than the radius of curvature of the electric wire WB. As a result, the durability of the optical fiber cable W1 can be further improved.

Further, this wire harness WH1 has the following configuration. The pair of restraint members 2a and 2b are provided in the movable range 1T which is deformed in the state of being arranged in the optical fiber cable W1 and the electric wire WB. Therefore, in the wire harness WH1 according to the present embodiment, the extra length portion WA1g of the optical fiber cable W1 is provided only between the pair of restraint members 2a and 2b in the first axial direction X1, and the optical fiber cable W1 is in the first axial direction. It is possible to suppress unnecessary lengthening along X1. As a result, the wire harness WH1 according to the present embodiment can suppress wasteful consumption of materials.

[Second Embodiment]
FIG. 9 is a perspective view showing a state in which the high-speed transmission wiring material WA and the plurality of electric wires WB are restrained by the restraint members 2a and 2b in the wire harness WH2 according to the second embodiment. Further, FIG. 9 shows a state before the high-speed transmission wiring material WA and the plurality of electric wires WB are arranged, and one end WA1c, WB1c and the other end WA1d of the high-speed transmission wiring material WA and each electric wire WB are shown. , Is a perspective view showing a state in which no force is applied between the WB1d and the WB1d. More specifically, FIG. 9 shows high speed on the support member 4 which is a jig for arranging the wiring material WA for high-speed transmission in a state of being restrained with a plurality of electric wires WB in a manner having an extra length portion WA1g. It is a perspective view which shows the state which the transmission wiring material WA and a plurality of electric wires WB are put on. FIG. 10 is a perspective view in which a part of the twisted pair cable W2, which is the wiring material WA for high-speed transmission included in the wire harness WH2 according to the second embodiment, is broken.

The wire harness WH2 uses a jig which is two support members 4 to support the twisted pair cable W2 and the plurality of electric wires WB, while restraining the twisted pair cable W2 and the plurality of electric wires WB with the restraint members 2a and 2b. .. Further, the wire harness WH2 has an intermediate restraint member 2c that restrains the twisted pair cable W2 and the plurality of electric wires WB in the intermediate portion of the pair of restraint members 2a and 2b in the second axial direction X2. Other configurations of the wire harness WH2 according to the second embodiment are the same as the configurations of the wire harness WH1 of the first embodiment. Therefore, the wire harness WH2 according to the second embodiment will be described below only in that it differs from the wire harness WH1 of the first embodiment, and the description of the same configuration will be omitted.

The wire harness WH2 according to the second embodiment shown in FIG. 9 uses a twisted pair cable W2 instead of the optical fiber cable W1 as the wiring material WA for high-speed transmission. As shown in FIG. 10, the twisted pair cable W2 used as the wiring material WA for high-speed transmission includes a first electric wire 110a, a second electric wire 110b, a first shield layer 113, a second shield layer 114, and a sheath 115. It is formed so as to extend in the first axial direction X1 along the first axial center 1x. In the wire harness WH2 of the second embodiment, a twisted pair (Jacketed Unshielded Twist Pair) electric wire without a sheath 115 can be used as the wiring material WA for high-speed transmission, and four electric wires are twisted together. You can also use a Shielded Twist Quad cable. The first electric wire 110a includes a first core wire 111a having conductivity and a first insulation coating layer 112a which covers the outside of the first core wire 111a and is made of an insulating synthetic resin. The second electric wire 110b includes a second core wire 111b having conductivity and a second insulation coating layer 112b which covers the outside of the second core wire 111b and is made of an insulating synthetic resin. The first shield layer 113 is formed of a conductive metal in a tubular shape having a thin thickness in the plate thickness direction. The second shield layer 114 is formed as a braid in which conductive strands are incorporated in a tubular and mesh shape. In FIG. 10, for convenience of illustration, the specific mesh shape of the second shield layer 114 is omitted. The sheath 115 is located on the outermost side in the radial direction of the twisted pair cable W2 and is made of an insulating synthetic resin. The twisted pair cable W2 is composed of two pairs of electric wires 110a and 110b twisted together, and is electrostatically blocked by two layers of shield layers 113 and 114, so that external electromagnetic waves interfere with the internal core wires 111a and 111b. Can be suppressed. Such a twisted pair cable W2 includes a first insulating coating layer 112a, which is a three-layer insulating layer, a second insulating coating layer 112b, and a sheath 115.

The support member 4 includes a first support member 4a and a second support member 4b. Such a support member 4 is for arranging a high-speed transmission wiring material WA in a state of being restrained by a restraining member 2 together with a plurality of electric wires WB in a manner having an extra length portion WA 1g. The first support member 4a includes a fixing portion 41, a base portion 42, a beam-shaped portion 43, a first columnar portion 44, a second columnar portion 45, and a third columnar portion 46. The fixing portion 41 is a portion fixed to a workbench for arranging lines. The base portion 42 is a columnar portion extending from the fixed portion 41 in the first crossing direction Y. The beam-shaped portion 43 is a portion extending from the end of the base portion 42 in the first crossing direction Y to the second crossing direction Z. The first columnar portion 44 is a portion of the beam-shaped portion 43 extending from one end of the second crossing direction Z to the first crossing direction Y. The second columnar portion 45 is a portion of the beam-shaped portion 43 extending from the intermediate portion between one end and the other end of the second intersection direction Z in the first intersection direction Y. The third columnar portion 46 is a portion of the beam-shaped portion 43 extending from the other end of the second crossing direction Z to the first crossing direction Y. In the first support member 4a, the first space portion 4s1 is arranged between the first columnar portion 44 and the second columnar portion 45 in the second crossing direction Z, and the second columnar portion 45 and the third columnar portion 45a are arranged. A second space portion 4s2 is arranged between the 46 and the fourth space portion 4s2. The length of the second columnar portion 45 and the third columnar portion 46 in the second crossing direction Z is longer than the length of the first columnar portion 44 and the second columnar portion 45 in the second crossing direction Z. Since the configuration of the first support member 4a and the configuration of the second support member 4b are the same, the description of the second support member 44b will be omitted. However, the second support member 4b is fixed to the workbench so that the positions of the first columnar portion 44 and the third columnar portion 46 in the second crossing direction Z are opposite to those of the first support member 4a.

Such a first support member 4a and a second support member 4b are arranged between a pair of restraint members 2a and 2b in the second axial direction X2. Further, in the second axial direction X2, an intermediate restraint member 2c is arranged between the first support member 4a and the second support member 4b. The intermediate restraint member 2c suppresses the twisted pair cable W2 between the pair of restraint members 2a and 2b in the second axial direction X2 from spreading in the first crossing direction Y and the second crossing direction Z.

Further, the first support member 4a and the second support member 4b have the same positions of the second columnar portion 45 and the third columnar portion 46 in the second crossing direction Z in the front view, and are the same as the second columnar portion 45. A plurality of electric wires WB are linearly arranged in the second space portion 4s2 arranged between the third columnar portion 46 and the third columnar portion 46.

The twisted pair cable W2 is in a loose state inside between the pair of restraint members 2a and 2b in the second axial direction X2, and has an extra length portion WA1g. Moreover, the extra length portion WA1g of the twisted pair cable W2 is arranged so as to meander in the second crossing direction Z. The arrangement of the twisted pair cable W2 will be described in detail below. The twisted pair cable W2 is arranged linearly so that the first axial center 1x is along the second axial direction X2 at one end WA1c side located outside the pair of restraint members 2a and 2b in the second axial direction X2. , One of the restraint members 2a is restrained together with the plurality of electric wires WB. After that, the twisted pair cable W2 has a bent portion WA1h bent in one of the second crossing directions Z, and the bent portion WA1h is arranged in the first space portion 4s1 of the first support member 4a. The twisted pair cable W2 then has a bent portion WA1i bent in the other direction of the second crossing direction Z after being restrained together with the plurality of electric wires WB by the intermediate restraint member 2c, and the bent portion WA1i is the second support member 4b. It is arranged in the first space portion 4s1 of the above. After that, the twisted pair cable W2 is restrained together with the plurality of electric wires WB by the other restraint member 2b, and then the first shaft is on the other end WA1d side located outside the pair of restraint members 2a and 2b in the second axial direction X2. The core 1x is arranged linearly along the second axial direction X2.

The wire harness WH2 is movable with the vehicle body BD after the twisted pair cable W2 and the plurality of electric wires WB are lifted from the support member 4 which is a jig, and the twisted pair cable W2 and the plurality of electric wires WB are inserted into the grommet 3, for example. It is laid out with the member D. After being arranged in the vehicle, the wire harness WH2 is subjected to a force so that one of the restraint members 2a and the intermediate restraint member 2c is close to one end side in the second crossing direction Z as the movable member D moves. A force is applied so that the intermediate restraint member 2c and the other restraint member 2b are close to the other end side in the second crossing direction Z. When a force is applied to the twisted pair cable W2 and the plurality of electric wires WB as described above, the bent portions WA1h and WA1i of the twisted pair cable W2 become bent portions, and the twisted pair cable W2 is arranged outside the bent portion.

The wire harness WH2 described above has the following configuration. The quantity of the twisted pair cable W2 is smaller than the quantity of the electric wire WB, and the length along the first axial direction X1 between the pair of restraint members 2a and 2b is the second axis of the electric wire WB between the pair of restraint members 2a and 2b. It is 1.1 to 3.3 times the length along the direction X2. Therefore, in the wire harness WH2 according to the present embodiment, when a force is applied to the twisted pair cable W2 and the electric wire WB by bending the twisted pair cable W2 and the plurality of electric wires WB between the pair of restraint members 2a and 2b. , A large force is applied to the electric wire WB, and the force applied to the twisted pair cable W2 can be reduced. As a result, the wire harness WH2 according to the present embodiment can suppress the application of a large force to the twisted pair cable W2, and thus protects the core wires 111a and 111b, the first shield layer 113, and the second shield layer 114. , The durability of the twisted pair cable W2 can be improved.

Further, this wire harness WH2 has the following configuration. The wire harness WH2 has an intermediate restraint member 2c that restrains the twisted pair cable W2 and the plurality of electric wires WB in the intermediate portion between the pair of restraint members 2a and 2b in the second axial direction X2. Therefore, the intermediate restraint member 2c can prevent the twisted pair cable W2 between the pair of restraint members 2a and 2b from spreading in the first crossing direction Y and the second crossing direction Z. As a result, in the wire harness WH2 according to the present embodiment, the extra length portion WA1g can be provided only on the twisted pair cable W2 inside the limited space. Therefore, in the wire harness WH2 according to the present embodiment, the twisted pair cable W2 and the plurality of electric wires WB can be easily inserted into the grommet 3, and the workability at the time of assembly can be improved.

[First modification]
FIG. 11 is a perspective view showing a state in which the twisted pair cable W2 and the plurality of electric wires WB are restrained by the restraint member 2 in the wire harness WH2a according to the first modification of the second embodiment. Further, FIG. 11 shows a state before the twisted pair cable W2 and the plurality of electric wires WB are arranged, and a force is applied between the twisted pair cable W2 and one end WA1c and WB1c of each electric wire WB and the other ends WA1d and WB1d. It is a perspective view which shows the state which has not been added. More specifically, FIG. 11 shows a twisted pair cable W2 and a plurality of twisted pair cables W2 on a support member 4 which is a jig for arranging the twisted pair cable W2 in a state of being restrained with a plurality of electric wires WB in a manner having an extra length portion WA1g. It is a perspective view which shows the state which put the electric wire WB of.

The wire harness WH2a according to the first modification is different from the wire harness WH2 according to the second embodiment in the arrangement of the second support member 4b and the arrangement of the twisted pair cable W2. Other configurations of the wire harness WH2a according to the first modification are the same as those of the wire harness WH2 according to the second embodiment. Therefore, the wire harness WH2a according to the first modification will be described below only in that it differs from the wire harness WH2 of the second embodiment, and the description of the same configuration will be omitted.

The second support member 4b of the wire harness WH2a according to the first modification works so that the positions of the first columnar portion 44 and the third columnar portion 46 in the second crossing direction Z are the same as those of the first support member 4a. It is fixed to the table.

The twisted pair cable W2 is in a loose state inside between the pair of restraint members 2a and 2b in the second axial direction X2, and has an extra length portion WA1g. Moreover, the extra length portion WA1g of the twisted pair cable W2 is arranged so as to meander in the second crossing direction Z. In the wire harness WH2a according to the first modification, the twisted pair cable W2 is arranged as follows. The twisted pair cable W2 is arranged linearly so that the first axial center 1x is along the second axial direction X2 at one end WA1c side located outside the pair of restraint members 2a and 2b in the second axial direction X2. It is restrained together with a plurality of electric wires WB by one restraining member 2a. After that, the twisted pair cable W2 has a bent portion 1j bent in the other direction of the second crossing direction Z, and the bent portion 1j is arranged in the first space portion 4s1 of the first support member 4a. The twisted pair cable W2 then has a bent portion 1k bent in the other direction of the second crossing direction Z after being restrained together with the plurality of electric wires WB by the intermediate restraining member 2c, and the bent portion 1k is the second supporting member 4b. It is arranged in the first space portion 4s1 of the above. After that, the twisted pair cable W2 is restrained together with the plurality of electric wires WB by the other restraint member 2b, and then the first shaft is on the other end WA1d side located outside the pair of restraint members 2a and 2b in the second axial direction X2. The center 1x is arranged so as to follow a straight line along the second axial direction X2.

The wire harness WH2a is movable with the vehicle body BD after the twisted pair cable W2 and the plurality of electric wires WB are lifted from the support member 4 which is a jig, and the twisted pair cable W2 and the plurality of electric wires WB are inserted into the grommet 3, for example. It is laid out with the member D. After being arranged in the vehicle, the wire harness WH2a is arranged so that, for example, one restraint member 2a and the other restraint member 2b are close to the other end side in the second crossing direction Z as the movable member D moves. Power is applied to. When a force is applied to the twisted pair cable W2 and the plurality of electric wires WB as described above, the bent portions WA1j and WA1k of the twisted pair cable W2 become the bent portions WA1f and WB1f, and the bent portion WA1f of the twisted pair cable W2 is a bundle of wiring materials. It is arranged on the outermost side in the circumferential direction in WC.

[Second modification]
FIG. 12 is a perspective view showing a state in which the twisted pair cable W2 and the plurality of electric wires WB are restrained by the restraint member 2 in the wire harness WH2b according to the second modification of the second embodiment. Further, FIG. 12 shows a state before the twisted pair cable W2 and the plurality of electric wires WB are arranged, and a force is applied between the twisted pair cable W2 and one end WA1c and WB1c of each electric wire WB and the other ends WA1d and WB1d. It is a perspective view which shows the state which has not been added. More specifically, FIG. 12 shows a twisted pair cable W2 and a plurality of twisted pair cables W2 on a support member 4 which is a jig for arranging the twisted pair cable W2 in a state of being restrained with a plurality of electric wires WB in a manner having an extra length portion WA1g. It is a perspective view which shows the state which put the electric wire WB of.

The wire harness WH2b according to the second modification differs from the wire harness WH2 according to the second embodiment in the number of support members 4 and the arrangement of the twisted pair cable W2. Other configurations of the wire harness WH2b according to the second modification are the same as those of the wire harness WH2 according to the second embodiment. Therefore, the wire harness WH2b according to the second modification will be described below only in that it differs from the wire harness WH2 of the second embodiment, and the description of the same configuration will be omitted.

The wire harness WH2b according to the second modification has three support members 4 including a first support member 4a, a second support member 4b, and a third support member 4c. In the wire harness WH2b according to the second modification, the arrangement of the first support member 4a and the second support member 4b is the same as the arrangement of the first support member 4a and the second support member 4b of the wire harness WH2 according to the second embodiment. It is the same. The third support member 4c is fixed to the workbench so that the positions of the first columnar portion 44 and the third columnar portion 46 in the second crossing direction Z are the same as those of the first support member 4a. The third support member 4c is arranged so as to be adjacent to the second support member 4b in the second axial direction X2.

These first support member 4a, second support member 4b, and third support member 4c are arranged between the pair of restraint members 2a and 2b in the second axial direction X2. Further, in the second axial direction X2, the intermediate restraint member 2c is arranged between the second support member 4b and the third support member 4c.

Further, the first support member 4a, the second support member 4b, and the third support member 4c have the same positions of the second columnar portion 45 and the third columnar portion 46 in the second crossing direction Z in the front view, and , A plurality of electric wires WB are linearly arranged in the second space portion 4s2 arranged between the second columnar portion 45 and the third columnar portion 46.

The twisted pair cable W2 is in a loose state inside between the pair of restraint members 2a and 2b in the second axial direction X2, and has an extra length portion WA1g. Moreover, the extra length portion WA1g of the twisted pair cable W2 is arranged so as to meander in the first crossing direction X and the second crossing direction Z. In the wire harness WH2b according to the second modification, the twisted pair cable W2 is arranged as follows. The twisted pair cable W2 is arranged linearly so that the first axial center 1x is along the second axial direction X2 at one end WA1c side located outside the pair of restraint members 2a and 2b in the second axial direction X2. , One of the restraint members 2a is restrained together with the plurality of electric wires WB. After that, the twisted pair cable W2 has a bent portion 1l that is bent in one of the second crossing directions Z and bent in one of the first crossing directions Y, and the bent portion 1l is the first of the first support member 4a. It is arranged in the space portion 4s1. The twisted pair cable W2 then has a bent portion 1 m that is bent in the other direction of the second crossing direction Z and is bent in the other direction of the first crossing direction Y, and the bent portion 1 m is the first of the second support member 4b. It is arranged in the space portion 4s1. After that, the twisted pair cable W2 is restrained together with the plurality of electric wires WB by the intermediate restraint member 2c. The twisted pair cable W2 then has a bent portion 1n that is bent in one of the second crossing directions Z and bent in one of the first crossing directions Y, and the bent portion 1n is the first of the third support member 4c. It is arranged in the space portion 4s1. After that, the twisted pair cable W2 is restrained together with the plurality of electric wires WB by the other restraint member 2b, and then the first shaft is on the other end WA1d side located outside the pair of restraint members 2a and 2b in the second axial direction X2. The core 1x is arranged linearly along the second axial direction X2.

The wire harness WH2b is movable with the vehicle body BD after the twisted pair cable W2 and the plurality of electric wires WB are lifted from the support member 4 which is a jig, and the twisted pair cable W2 and the plurality of electric wires WB are inserted into the grommet 3, for example. It is laid out with the member D. After being arranged in the vehicle, as the movable member D moves, the wire harness WH2b receives a force so that one of the restraint members 2a and the intermediate restraint member 2c is close to the other end side in the second crossing direction Z. At the same time, a force is applied so as to be close to the other end side in the first crossing direction Y. Moreover, in the wire harness WH2b, a force is applied so that the intermediate restraint member 2c and the other restraint member 2b are close to the other end side in the second crossing direction Z, and are close to one end side in the first crossing direction Y. The force is applied. When a force is applied to the twisted pair cable W2 and the plurality of electric wires WB as described above, the bent portions WA1l, WA1m, and WA1n of the twisted pair cable W2 become the bent portions WA1f and WB1f, and the bent portions WA1f of the twisted pair cable W2 are arranged. It is arranged on the outermost side in the circumferential direction in the timber bundle WC.

The wire harnesses WH1, WH2, WH2a, and WH2b of the first and second embodiments described above have one wire wiring material WA for high-speed transmission and 36 electric wires WB. However, the present invention is not limited to this, and if the quantity of the wiring material WA for high-speed transmission is one or more and less than the quantity of the electric wires WB, it can be set to an appropriate quantity. More preferably, in the wire harnesses WH1, WH2, WH2a, and WH2b, it is preferable to arrange 10 electric wires WB for one high-speed transmission wiring material WA. With such a quantity ratio of the number of wires, when a force is applied to the wire harnesses WH1, WH2, WH2a, and WH2b, the force applied to the optical fiber cable W1 can be reduced. Therefore, within the range satisfying the above conditions, if the number of electric wires WB is 10 or more and is larger than the quantity of the high-speed transmission wiring material WA, it can be set to an appropriate quantity.

Further, the wire harnesses WH1, WH2, WH2a, and WH2b of the first and second embodiments described above have been described as being provided so as to be bridged between the vehicle body BD and the movable member D which is a side door for the front seat. .. However, the present invention is not limited to this, and may be provided so as to be bridged between the vehicle body BD and a movable member D such as a back door, a trunk lid, and a side door for a rear seat.

Further, the configuration of the wire harness WH1 of the first embodiment and the configurations of the wire harnesses WH2, WH2a, and WH2b of the second embodiment can be separated from each other and appropriately combined.

1x 1st axis 1T Movable range 2a, 2b Pair of restraint members 2c Intermediate restraint member 2x 2nd axis X1 1st axis direction X2 2nd axis direction WA High-speed transmission wiring material WA1f, WB1f Bent part WB Electric wire W1 ( WA) Optical fiber cable W2 (WA) Twisted pair cable WH1, WH2, WH2a, WH2b Wire harness

Claims (5)

A wiring material for high-speed transmission extending in the direction of the first axis along the center of the first axis,
A plurality of electric wires extending in the direction of the second axis along the center of the second axis and different from the high-speed transmission wiring material, and
A pair of restraining members that restrain the high-speed transmission wiring material and the plurality of electric wires at intervals along the second axial direction.
With
The quantity of the high-speed transmission wiring material is smaller than the quantity of the electric wire, and the length of the pair of restraint members along the first axial direction is the second length of the wire between the pair of restraint members. It is characterized in that it is 1.1 to 3.3 times the length along the axial direction.
Wire harness. In the intermediate portion between the pair of restraint members in the second axial direction, the intermediate restraint member for restraining the high-speed transmission wiring material and the plurality of electric wires is provided.
The wire harness according to claim 1. The high-speed transmission wiring material and the electric wire have a bent portion and have a bent portion.
The high-speed transmission cording material is arranged on the outside of the bend in the bent portion.
The wire harness according to claim 1 or 2. The pair of restraint members are provided in a movable range in which the high-speed transmission wiring material and the electric wire can move in a arranged state.
The wire harness according to any one of claims 1 to 3. The high-speed transmission wiring material includes an electric wire having two or more insulating layers or an optical fiber cable that propagates light.
The wire harness according to any one of claims 1 to 4.

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