Wire harness

Abstract

To provide a wire harness that allows for proper routing. [Solution] The wire harnesses 100 and 100A include an electric wire W, a circuit body CT connected to the electric wire, and a terminal portion T connected to the electric wire via the circuit body. The circuit body includes a first flat wiring member 11 having a plurality of first linear conductors 11b arranged on an insulating layer 11a, and a second flat wiring member 12 having a second linear conductor 12b. At least one of the plurality of first linear conductors is connected to an electric wire, and one end 12ba of the second linear conductor is connected to a first linear conductor 11b to which an electric wire is connected, and the other end 12bb is connected to a terminal portion.

Description

Technical Field

[0001] The present invention relates to a wire harness.

Background Art

[0002] Patent Document 1 discloses a technique related to a wire harness including a housing and at least one electronic component housed in the housing. In the wire harness of Patent Document 1, the housing has a housing chamber in which the electronic component is housed, a wire lead-out port for leading out a wire electrically connected to the electronic component to the outside of the housing, and a wire routing space for guiding the wire drawn out from the housing chamber to the wire lead-out port.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the wire harness described in Patent Document 1 mentioned above, for example, there is room for further improvement from the viewpoint of improving wire routing, such as reducing the mounting space of the wire harness in a vehicle.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide a wire harness that can be properly routed.

Means for Solving the Problems

[0006] The wire harness of the present invention comprises an electric wire, a circuit body connected to the electric wire, and a terminal portion connected to the electric wire via the circuit body, wherein the circuit body includes a first flat wiring member having a plurality of first linear conductors arranged on an insulating layer, and a second flat wiring member having a second linear conductor, wherein at least one of the plurality of first linear conductors is connected to the electric wire, and one end of the second linear conductor is connected to the first linear conductor to which the electric wire is connected, and the other end is connected to the terminal portion. [Effects of the Invention]

[0007] The wire harness according to the present invention has the effect of enabling proper routing. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view showing a wire harness according to an embodiment. [Figure 2] Figure 2 is a perspective view showing a wire harness according to an embodiment. [Figure 3] Figure 3 is a cross-sectional view showing a wire harness according to an embodiment. [Figure 4] Figure 4 is a perspective view showing how a linear conductor is attached to the insulating layer in an embodiment. [Figure 5] Figure 5 is a perspective view showing an example of the application of the circuit body of the embodiment. [Figure 6] Figure 6 is a perspective view showing a wire harness for reference. [Figure 7] Figure 7 is a cross-sectional view showing a wire harness according to a reference example. [Figure 8] Figure 8 is an exploded perspective view showing a wire harness for reference. [Modes for carrying out the invention]

[0009] A wire harness according to an embodiment of the present invention will be described in detail below with reference to the drawings. However, this embodiment does not limit the present invention. Furthermore, the components in the following embodiments include those that are easily conceivable by those skilled in the art or that are substantially identical.

[0010] [Embodiment] The embodiments will be described with reference to Figures 1 to 5. Figure 1 is a perspective view showing a wire harness according to the embodiment, Figure 2 is a perspective view showing a wire harness according to the embodiment, Figure 3 is a cross-sectional view showing a wire harness according to the embodiment, Figure 4 is a perspective view showing how linear conductors are attached to the insulating layer in the embodiment, and Figure 5 is a perspective view showing an application example of the circuit body of the embodiment. Note that in Figure 2, the insulating layer 20, which will be described later, is omitted from the illustration. Also, Figure 3 is a cross-sectional view of the AA line shown in Figure 2.

[0011] In the following explanation, of the three intersecting directions, the first direction is referred to as the "length direction X," the second direction as the "width direction Y," and the third direction as the "height direction Z." In this embodiment, the length direction X, the width direction Y, and the height direction Z are mutually orthogonal. The direction toward one side in the width direction Y is referred to as the "first extraction direction Y1," and the direction toward the opposite side of the width direction Y is referred to as the "second extraction direction Y2." The side toward one side in the height direction Z is referred to as the "upper side," and the side opposite the upper side is referred to as the "lower side."

[0012] The wire harness 100 shown in Figure 1 is incorporated into vehicles such as automobiles. Here, the wire harness 100 is a bundle of multiple wires used for power supply and signal communication, for example, to connect various devices mounted on a vehicle, and the wires are connected to each device at terminals or the like.

[0013] The wire harness 100 according to this embodiment comprises a wire W, a circuit body CT, and a terminal section T. The wire W is an insulated wire in which the core wire is covered with an insulating coating. The core wire of the wire W is a core wire made by bundling together a plurality of conductive metallic strands, but it may also be a stranded core wire made by twisting together the plurality of strands. The insulating coating is a wire coating that covers the outer circumference of the core wire and is made of an insulating resin material or the like.

[0014] The circuit body CT is composed of a sheet-like first flat cable guide 11 and a sheet-like second flat cable guide 12. The first flat cable guide 11 and the second flat cable guide 12 are flexible.

[0015] The first flat cable guide 11 is composed of a first insulating layer 11a and a plurality of first linear conductors 11b arranged on the first insulating layer 11a. The first insulating layer 11a is, for example, a sheet-like insulating member such as a plastic film, and the first linear conductors 11b are conductive members formed from a metallic material. In the first flat cable guide 11 of this embodiment, four first linear conductors 11b arranged along the width direction Y extend linearly along the length direction X.

[0016] As shown in Figure 2, the second flat cable guide 12 is composed of a second insulating layer 12a and a second linear conductor 12b provided on the second insulating layer 12a. The second insulating layer 12a is, for example, a sheet-like insulating material such as a plastic film, and the second linear conductor 12b is a conductive material formed from a metallic material. One end 12ba of the second linear conductor 12b is superimposed on one of the multiple first linear conductors 11b and directly connected electrically and physically. Specifically, in the second flat cable guide 12, the second linear conductor 12b is provided such that the lower side of one end 12ba is exposed from the second insulating layer 12a, and the lower surface of the second linear conductor 12b exposed from the second insulating layer 12a is directly connected to one of the first linear conductors 11b in the height direction Z. The second linear conductor 12b is connected to the first linear conductor 11b by methods such as crimping, pressure welding, heat welding, laser welding, or ultrasonic welding.

[0017] The second linear conductor 12b extends in a direction intersecting with the extending direction of the first linear conductor 11b connected to the second linear conductor 12b. In the present embodiment, the second linear conductor 12b extends so as to be drawn out to the outside of the first flat cable member 11 from the connection portion with the first linear conductor 11b toward the first extraction direction Y1. Here, as shown in FIGS. 2 and 3, when the second linear conductor 12b passes above the first linear conductor 11b that is not directly connected to the second linear conductor 12b, the second insulating layer 12a is interposed between the second linear conductor 12b and the first linear conductor 11b and is arranged to insulate between them. By providing the second insulating layer 12a, even if a branch line from the first linear conductor 11b is formed by the second linear conductor 12b, the second linear conductor 12b does not contact other first linear conductors 11b, so the degree of freedom in arranging the first linear conductor 11b and the second linear conductor 12b can be increased.

[0018] For example, as shown in FIG. 4, the first flat cable member 11 is formed by arranging a plurality of first linear conductors 11b on the first insulating layer 11a and joining the first insulating layer 11a and the plurality of first linear conductors 11b by laser light L irradiated from a laser irradiation device LI. Similarly, the second flat cable member 12 is formed by placing the first linear conductor 11b on the second insulating layer 12a and joining the second insulating layer 12a and the second linear conductor 12b by laser light L irradiated from the laser irradiation device LI. Note that the joining of the first insulating layer 11a and the plurality of first linear conductors 11b in the first flat cable member 11 may be adhesion by thermal welding, ultrasonic welding, an adhesive, or the like. Similarly, the joining of the second insulating layer 12a and the second linear conductor 12b in the second flat cable member 12 may be adhesion by thermal welding, ultrasonic welding, an adhesive, or the like.

[0019] As shown in FIGS. 2 and 3, the terminal portion T is a connection member formed of a metal material or the like. The terminal portion T is connected to the other end portion 12bb of the second linear conductor 12b. That is, the terminal portion T is connected to the electric wire W via the second linear conductor 12b and one of the plurality of first linear conductors 11b (the first linear conductor 11b to which the second linear conductor 12b is connected). The second flat cable member 12 is configured to be curved in accordance with a change in the position of the terminal portion T. The second linear conductor 12b is connected to, for example, an electronic component EP (see FIG. 5) or the like via the terminal portion T. When an operator connects the terminal portion T to the electronic component EP, the second flat cable member 12 can be deformed so as to follow the movement of the terminal portion T, thus improving the workability of the cable laying.

[0020] The circuit body CT of the present embodiment further includes an insulating layer 20. The insulating layer 20 is provided so as to cover each linear conductor (the first linear conductor 11b, the second linear conductor 12b) included in the first flat cable member 11 and the second flat cable member 12 from above (the side opposite to the first insulating layer 11a and the second insulating layer 12a). That is, the first flat cable member 11 and the second flat cable member 12 in the present embodiment are configured as sheet-like cable members in which the linear conductors (the first linear conductor 11b, the second linear conductor 12b) are covered with insulating layers (the first insulating layer 11a, the second insulating layer 12a, the insulating layer 20) such as plastic films. The circuit body CT is formed, for example, to have a thickness of about 1 mm. A plurality of insulating layers 20 are provided in the present embodiment, and are provided so as to individually cover the first flat cable member 11 and the second flat cable member 12 from above. For example, a plurality of patterns of the insulating layer 20 are prepared in advance, and these insulating layers 20 are combined and used according to the shape of the circuit body CT formed by combining the first flat cable member 11 and the second flat cable member 12, whereby the insulating treatment of the linear conductors in the circuit body CT can be performed. Note that the insulating layer 20 may cover the first flat cable member 11 and the second flat cable member 12 from above in a lump. In this case, the insulating layer 20 may be formed by covering the entire first flat cable member 11 and the second flat cable member 12 with a plastic film or the like from above and then cutting out the plastic film in accordance with the shapes of the first flat cable member 11 and the second flat cable member 12.

[0021] In this embodiment, the multiple first linear conductors 11b included in the first flat wiring material 11 correspond to, for example, the main line in the wire harness 100. In this embodiment, the circuit body CT is constructed by overlapping the second flat wiring material 12 with the first flat wiring material 11 and connecting the second linear conductor 12b to the first linear conductor 11b, thereby providing branch lines (second linear conductors 12b) branching off from the main line (first linear conductor 11b) in the wire harness 100, and easily creating circuits of any shape. Furthermore, since the first flat wiring material 11 and the second flat wiring material can be transported separately and assembled into circuits of any shape at the destination, entanglement of wires can be suppressed during transport and assembly, and wiring work can be performed smoothly.

[0022] Figure 5 shows an example of a wire harness 100A in which the circuit body CT described in Figures 1 to 4 is applied to an electrical junction box EB. Here, the electrical junction box EB is what is commonly called a relay box or junction box, and is connected, for example, between a power source such as a battery and various electrical equipment installed in the vehicle via a circuit body CT and wires W. The electrical junction box EB distributes the power supplied from the power source to various electrical equipment in the vehicle. The wire harness 100A of this embodiment further comprises a housing Bx. The housing Bx houses the circuit body CT, terminal section T, and electronic component EP. The electronic component EP is, for example, a fuse or relay. The housing Bx has wire insertion holes EO, and the wires W are inserted through the wire insertion holes EO of the housing Bx, both inside and outside the housing Bx.

[0023] In this embodiment, the housing Bx includes a rectangular tubular frame Bx1 that houses electronic components EP and the like inside, an upper cover Bx2 that covers the upper side of frame Bx1, and a lower cover Bx3 that covers the lower side of frame Bx1. Wire insertion holes EO are formed in the lower cover Bx3, and the circuit body CT and terminal section T are housed inside the lower cover Bx3. A block B made of an insulating resin material or the like (not shown) is provided inside frame Bx1. The block B is configured to fix the electronic components EP inside frame Bx1. The terminal section T is inserted, for example, into a cavity provided in block B and electrically connected to the electronic components EP. Note that a busbar may be built into block B, and the terminal section T inserted into the cavity of block B may be electrically connected to the electronic components EP via the busbar.

[0024] In the wire harness 100A of this embodiment, multiple wires W, circuit bodies CT, terminals T, and electronic components EP may be provided. In the example of the wire harness 100A shown in Figure 5, two wire bundles WB, each bundling multiple wires W, are provided, and the two wire bundles WB are inserted through wire insertion holes EO formed in the housing Bx, extending from the inside to the outside of the housing Bx. The wire harness 100A is also provided with two circuit bodies CT, and the terminals T and the wires W drawn out from the wire bundles WB are connected to each circuit body CT. In the following description, when the two circuit bodies CT are described separately, one may be conveniently referred to as "first circuit body CT1" and the other as "second circuit body CT2".

[0025] The electric wire W is connected in a one-to-one relationship to the first linear conductor 11b contained in the first flat cable member 11. In the first circuit body CT1 and the second circuit body CT2, two second flat cable members 12 are connected to one first flat cable member 11, and the second linear conductors 12b of these second flat cable members 12 are directly connected to different first linear conductors 11b. In addition, each terminal T is connected to a different electronic component EP.

[0026] Within the enclosure Bx, the first circuit unit CT1 is positioned above the second circuit unit CT2. Within the enclosure Bx, the first circuit unit CT1 and the second circuit unit CT2 are stacked so that the main surfaces of their respective first flat wiring members 11 face each other. By connecting the electric wire W and the electronic equipment EP via the circuit units CT, the wiring space can be reduced compared to when the electric wire W and electronic components EP are connected without the circuit units CT. Furthermore, by stacking multiple circuit units CT in the height direction Z, the enclosure Bx can be made lower in profile compared to when the electric wire W and electronic components EP are connected without the circuit units CT.

[0027] In the above-described embodiment, the first flat wiring member 11 and the second flat wiring member 12 were described using an example in which linear conductors (first linear conductor 11b, second linear conductor 12b) are covered with insulating layers (first insulating layer 11a, second insulating layer 12a, insulating layer 20) such as a plastic film, and the invention is not limited to this. For example, the first flat wiring member 11 and the second flat wiring member 12 may each be composed of an insulating base film as an insulating layer (first insulating layer 11a, second insulating layer 12a) and a printed circuit body as a linear conductor (first linear conductor 11b, second linear conductor 12b) formed on the base film. The printed circuit body is a wiring pattern formed of a conductive material such as copper foil. Furthermore, for example, the first flat cable 11 and the second flat cable 12 may be made up of FFC (Flexible Flat Cable) or FPC (Flexible Printed Circuits).

[0028] Furthermore, although the above-described embodiment uses an example in which one second flat cable member 12 includes one second linear conductor 12b, the invention is not limited to this. For example, in wire harnesses 100 and 100A, one second flat cable member 12 may include multiple second linear conductors 12b, and each of the multiple second linear conductors 12b may be connected to a terminal T. In this configuration, each of the multiple second linear conductors 12b may be directly connected to a different first linear conductor 11b, or each may be directly connected to the same first linear conductor 11b.

[0029] As described above, the wire harnesses 100 and 100A according to this embodiment include an electric wire W, a circuit body CT connected to the electric wire W, and a terminal portion T connected to the electric wire W via the circuit body CT. The circuit body CT includes a first flat wiring member 11 having a plurality of first linear conductors 11b arranged on a first insulating layer 11a, and a second flat wiring member 12 having a second linear conductor 12b. At least one of the plurality of first linear conductors 11b is connected to the electric wire W, and one end 12ba of the second linear conductor 12b is connected to a first linear conductor 11b connected to the electric wire W, and the other end 12bb is connected to a terminal portion T.

[0030] In this embodiment, the wire harnesses 100 and 100A can connect the electric wire W to electrical equipment EP via a circuit body CT by connecting the terminal portion T connected to the second linear conductor 12b to electrical equipment EP, etc. In this embodiment, the wire harnesses 100 and 100A can connect the electric wire W to electrical equipment EP using a circuit body CT that has been formed in advance to a desired shape, thus improving the workability of wiring in the wire harness 100. Furthermore, the improved workability of wiring in the wire harness 100 shortens the manufacturing cycle time of the wire harnesses 100 and 100A, and for example, the manufacturing cost of the wire harnesses 100 and 100A can be reduced. In addition, complex work such as wiring while bending the electric wire W is reduced, so the manufacturing of the wire harnesses 100 and 100A can be easily automated. Furthermore, in this embodiment, the wire harnesses 100 and 100A can properly route the wires to the electronic component EP by branching the conductive path (first linear conductor 11b) of the sheet-like first flat wiring material 11 with the second linear conductor 12b of the second flat wiring material 12. For example, the wire harnesses 100 and 100A in this embodiment can reduce the wiring space compared to when the electric wires W are bent and routed, thereby reducing the mounting space for the wire harness in the vehicle.

[0031] Furthermore, in the wire harnesses 100 and 100A of this embodiment, a portion of the second flat wiring member 12 is arranged overlapping the first flat wiring member 11, and one end 12ba of the second linear conductor 12b is overlapped and connected to one of the multiple first linear conductors 11b, and the second linear conductor 12b extends in a direction intersecting the extending direction of the first linear conductor 11b connected to the second linear conductor 12b, and is bendable in accordance with changes in the position of the terminal portion T.

[0032] In the wire harnesses 100 and 100A of this embodiment, the circuit body CT is constructed by overlapping a first flat wiring material 11 and a second flat wiring material 12, and connecting one end 12ba of the second linear conductor 12b to the first linear conductor 11b. By overlapping the two flat wiring materials (first flat wiring material 11 and second flat wiring material 12), the linear conductor can be routed in a planar manner, thus reducing the mounting space required for the wire harnesses 100 and 100A in the vehicle. Furthermore, by overlapping the first flat wiring material 11 and the second flat wiring material 12, circuits of any shape can be easily created, making it easy to create a wire harness 100 with a shape suitable for the mounting space in the vehicle. In addition, the wire harnesses 100 and 100A of this embodiment can properly route wires to electronic components EP using a second linear conductor that can be bent according to changes in the position of the terminal T.

[0033] Furthermore, the wire harness 100A of this embodiment further comprises a housing Bx that houses a circuit body CT, a terminal section T, and an electronic component EP, the electric wire W is inserted through the inside and outside of the housing Bx, and the terminal section T is connected to the electronic component EP.

[0034] In this embodiment, the wire harness 100A connects the electric wire W and the electronic component EP via a circuit CT within the housing Bx, thereby reducing the wiring space within the housing Bx compared to when the electric wire W is bent and routed. This configuration allows for, for example, miniaturization and reduction of the housing Bx, thereby reducing the mounting space for the wire harness in the vehicle.

[0035] Furthermore, in the wire harness 100A of this embodiment, multiple wires W, circuit bodies CTs, and terminal parts T are provided, and the multiple circuit bodies CTs are stacked and housed within the housing Bx.

[0036] In this embodiment, the wire harness 100A reduces the wiring space compared to when the wires W are bent and routed by stacking multiple circuit CTs within the housing Bx. For example, the housing Bx can be made smaller and lower in profile, thus reducing the mounting space for the wire harness in the vehicle.

[0037] [Example of an embodiment] Next, a wire harness according to a reference example of the embodiment will be described with reference to Figures 6 to 8. Figure 6 is a perspective view showing the wire harness according to the reference example, Figure 7 is a cross-sectional view showing the wire harness according to the reference example, and Figure 8 is an exploded perspective view showing the wire harness according to the reference example. Note that Figure 7 is a cross-sectional view along the BB line shown in Figure 6.

[0038] The wire harnesses 100 and 100A according to the above-described embodiment may include in part the configuration of the wire harness 101 according to the reference example. For example, in the wire harness 100 shown in Figures 1 to 3, the configuration of the wire harness 101 according to the reference example may be included in the part not shown.

[0039] As shown in Figure 6, the wire harness 101 in the reference example is composed of a sheet-like first flat wiring material 11, a sheet-like second flat wiring material 12, and a sheet-like third flat wiring material 13. The first flat wiring material 11, the second flat wiring material 12, and the third flat wiring material 13 constitute a single circuit body CT.

[0040] The first flat cable guide 11 is composed of a first insulating layer 11a and a plurality of first linear conductors 11b arranged on the first insulating layer 11a. In the first flat cable guide 11 of the reference example, nine first linear conductors 11b arranged along the width direction Y extend linearly along the length direction X.

[0041] The second flat cable guide 12 is composed of a second insulating layer 12a and a plurality of second linear conductors 12b arranged on the second insulating layer 12a. In the second flat cable guide 12 of the reference example, three second linear conductors 12b arranged along the length direction X extend linearly along the width direction Y. Each second linear conductor 12b is connected one-to-one with a first linear conductor 11b and extends outwards from the connection portion with the first linear conductor 11b toward the first withdrawal direction Y1 toward the outside of the first flat cable guide 11.

[0042] As shown in Figure 7, in the second flat cable member 12, each second linear conductor 12b is provided such that the lower surface of its end is exposed from the second insulating layer 12a. The lower surface of the second linear conductor 12b exposed from the second insulating layer 12a is directly connected to one of the first linear conductors 11b in the height direction Z. Here, the second insulating layer 12a is positioned to be interposed between the second linear conductor 12b that passes above the first linear conductor 11b and the said first linear conductor 11b. By providing the second insulating layer 12a, even if a branch line from the first linear conductor 11b is formed with the second linear conductor 12b, the second linear conductor 12b does not come into contact with the other first linear conductors 11b, thus increasing the degree of freedom in the arrangement of the first linear conductor 11b and the second linear conductor 12b.

[0043] The third flat cable guide 13 is composed of a third insulating layer 13a and a plurality of third linear conductors 13b arranged on the third insulating layer 13a. The third insulating layer 13a is, for example, a sheet-like insulating material such as a plastic film, and the third linear conductors 13b are conductive materials formed from a metallic material. In the reference example of the third flat cable guide 13, two third linear conductors 13b arranged along the length direction X extend linearly along the width direction Y (see Figure 6). Each third linear conductor 13b is connected to a first linear conductor 11b in a one-to-one relationship, and each third linear conductor 13b extends outwards from the connection portion with the first linear conductor 11b in the second withdrawal direction Y2 toward the outside of the first flat cable guide 11.

[0044] As shown in Figure 7, in the third flat cable member 13, each third linear conductor 13b is provided such that the lower surface of its end is exposed from the third insulating layer 13a. The lower surface of the third linear conductor 13b exposed from the third insulating layer 13a is directly connected to one of the third linear conductors 13b in the height direction Z. Here, the third insulating layer 13a is positioned between the third linear conductor 13b that passes above the first linear conductor 11b and the first linear conductor 11b. By providing the third insulating layer 13a, even if a branch line from the first linear conductor 11b is formed with the third linear conductor 13b, the third linear conductor 13b does not come into contact with the other first linear conductors 11b, thus increasing the degree of freedom in the arrangement of the first linear conductor 11b and the third linear conductor 13b.

[0045] Of the multiple first linear conductors 11b, the first linear conductor 11b that is directly connected to the second linear conductor 12b or the third linear conductor 13b is formed to be shorter than the other first linear conductors 11b. In other words, of the multiple first linear conductors 11b, the first linear conductor 11b that is directly connected to the second linear conductor 12b or the third linear conductor 13b is interrupted at the point where it connects to the second linear conductor 12b or the third linear conductor 13b.

[0046] As shown in Figure 8, in the example circuit CT, by overlapping the second flat wiring member 12 and the third flat wiring member 13 with the first flat wiring member 11, branch lines of the first linear conductor 11b (second linear conductor 12b and third linear conductor 13b) can be provided on the wire harness 101, making it easy to create circuits of any shape.

[0047] The reference example circuit CT further includes an insulating layer 20. As shown in Figure 6, the insulating layer 20 is provided so as to cover each linear conductor (first linear conductor 11b, second linear conductor 12b, third linear conductor 13b) contained in the first flat cable guide 11, second flat cable guide 12, and third flat cable guide 13 from above. That is, the first flat cable guide 11, second flat cable guide 12, and third flat cable guide 13 in the reference example are configured as sheet-like cable guide members in which linear conductors (first linear conductor 11b, second linear conductor 12b, third linear conductor 13b) are covered with insulating layers such as plastic film (first insulating layer 11a, second insulating layer 12a, third insulating layer 13a, insulating layer 20).

[0048] In the example, the insulating layer 20 is provided to cover the first flat cable guide 11, the second flat cable guide 12, and the third flat cable guide 13 together from above. Note that there may be multiple insulating layers 20, and they may be provided to individually cover the first flat cable guide 11, the second flat cable guide 12, and the third flat cable guide 13 from above. Furthermore, the insulating layer 20 may be divided into one that covers two flat cable guides (for example, the first flat cable guide 11 and the second flat cable guide) from above, and another that covers the remaining flat cable guide (for example, the third flat cable guide 13) from above. For example, by preparing insulating layers 20 in multiple shapes in advance and using them in combination according to the shape of the circuit body CT which is composed of a first flat cable guide 11, a second flat cable guide 12, and a third flat cable guide 13, it is possible to perform insulation treatment on the linear conductors (first linear conductor 11b, second linear conductor 12b, third linear conductor 13b) in the circuit body CT.

[0049] The wire harness 101 in the reference example allows for the easy creation of circuits of any shape by overlapping and connecting multiple flat wiring materials (first flat wiring material 11, second flat wiring material 12, third flat wiring material 13). Furthermore, since the wire harness 101 in the reference example is formed by overlapping sheet-like flat wiring materials, its shape when mounted on a vehicle can be simplified compared to wiring using electric wires W, etc. Moreover, the wire harness 101 in the reference example can reduce complex work such as bending electric wires W during vehicle manufacturing. Therefore, the wire harness 101 in the reference example can facilitate the automation of wiring the wire harness 101 during vehicle manufacturing, for example.

[0050] The embodiments and reference examples disclosed above can be combined and implemented as appropriate. [Explanation of Symbols]

[0051] 11: 1st flat wiring material 11a: First insulating layer 11b: First linear conductor 12:Second flat wiring material 12a: Second insulating layer 12b: Second linear conductor 13:Third flat wiring material 13a: Third insulating layer 13b: Third linear conductor 20: Insulating layer 100, 100A, 101: Wire harness Bx: Cabinet CT: circuit body

Claims

1. Power lines and, A circuit body connected to the aforementioned electric wire, A terminal portion connected to the electric wire via the circuit body, Equipped with, The circuit body includes a first flat cable member having a plurality of first linear conductors arranged on an insulating layer, and a second flat cable member having a second linear conductor. The plurality of first linear conductors are connected to the electric wire to at least one of them. The second linear conductor has the first linear conductor, to which the electric wire is connected, connected to one end, and the terminal portion connected to the other end. A wire harness characterized by the following features.

2. A portion of the second flat cable guide is placed on top of the first flat cable guide. The second linear conductor has one end connected to one of the plurality of first linear conductors, extends in a direction intersecting the extending direction of the first linear conductor connected to the second linear conductor, and is bendable in accordance with changes in the position of the terminal portion. The wire harness according to claim 1.

3. The enclosure further comprises the aforementioned circuit body, the terminal section, and the electronic components. The aforementioned electric wire is inserted through the inside and outside of the housing, The terminal portion is connected to the electronic component. The wire harness according to claim 1 or 2.

4. Multiple units are provided for each of the aforementioned electric wires, circuit bodies, and terminals. Multiple circuit bodies are stacked and housed within the housing. The wire harness according to claim 3.

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