Wiring harness

Abstract

To easily take a noise countermeasure for a wiring harness.SOLUTION: A wiring harness 30 comprises: a plurality of pieces of wiring 50; a base member 54 which keeps the plurality of pieces of wiring 50 in a flat shape; and a magnetic body core 70 which is positioned on the base member 54 so as to cover targeted wiring 50P among the plurality of pieces of wiring 50.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a wire harness. [Background technology]

[0002] Patent Document 1 discloses an interconnection box that electrically connects an instrument panel harness, an engine room harness, a door harness, and a floor harness to one another. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-202352 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there are cases where noise countermeasures are required for wire harnesses.

[0005] Therefore, an object of the present invention is to provide a wire harness that can easily be provided with noise countermeasures. [Means for solving the problem]

[0006] The wire harness of the present disclosure is a wire harness including a plurality of wires, a base member that maintains the plurality of wires in a flat shape, and a magnetic core that is positioned on the base member and covers a target wire among the plurality of wires. [Effects of the Invention]

[0007] According to the present disclosure, noise countermeasures can be easily implemented for a wire harness. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an explanatory diagram showing a wiring system including a wire harness in a vehicle. [Figure 2] FIG. 2 is a perspective view showing a state in which the wire harness according to the embodiment is arranged in a vehicle. [Figure 3] FIG. 3 is a plan view showing the wire harness according to the embodiment. [Figure 4] FIG. 4 is an enlarged view of area A in FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a plan view showing a wire harness according to a first modified example. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. 8 is an exploded plan view showing a wire harness according to a second modified example. [Figure 9] FIG. 9 is a side view showing a wire harness according to a second modified example. [Figure 10] FIG. 10 is a diagram illustrating the connection relationship between a plurality of types of connectors and a plurality of wires. [Figure 11] FIG. 11 is a diagram illustrating the connection relationship between the device connector, the first harness connector, and the second harness connector. [Figure 12] FIG. 12 is a cross-sectional view showing wiring and a base member according to the third modified example. [Figure 13] FIG. 13 is a diagram showing an example of how to divide a plurality of wirings. [Figure 14] FIG. 14 is a diagram showing another example of how to divide a plurality of wirings. [Figure 15] FIG. 15 is a perspective view showing a wire harness according to a fourth modified example. [Figure 16] FIG. 16 is an exploded perspective view showing a wire harness according to a fourth modified example. [Figure 17] FIG. 17 is a plan view showing a wire harness according to a fifth modified example. [Figure 18] FIG. 18 is a perspective view showing a state in which the wire harness according to the fifth modification is arranged in a vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The wire harness of the present disclosure is as follows.

[0011] (1) A wire harness comprising: a plurality of wires; a base member that maintains the plurality of wires in a flat shape; and a magnetic core that is positioned on the base member and covers a target wire among the plurality of wires.

[0012] According to such a wire harness, noise countermeasures for the target wiring can be implemented by the magnetic core positioned on the base member that keeps the plurality of wirings, including the target wiring, flat, thereby enabling noise countermeasures for the wire harness to be implemented easily.

[0013] (2) In the wire harness of (1), the base member may be a protector having a main body having a groove formed therein for receiving the target wiring and a lid covering the target wiring from the opposite side of the main body, and the magnetic core may be housed in the groove. This allows the magnetic core to be easily positioned in the protector serving as the base member.

[0014] (3) In the wire harness of (1), the base member may be a flexible sheet member, slits may be formed in the sheet member on both sides of the target wiring, and the magnetic core may cover a portion of the sheet member between the slits together with the target wiring. This allows the magnetic core to be easily positioned on the sheet member serving as the base member.

[0015] (4) In any one of the wire harnesses (1) to (3), an equipment connector connected to a connector of an electric device, and a first harness connector and a second harness connector to which connectors of a mating wire harness are respectively connected, the plurality of wirings may include a plurality of equipment wirings branching from the equipment connector and connected to the first harness connector and the second harness connector, and the target wiring may include a power line among the plurality of equipment wirings. This allows for easy noise countermeasures for the power line connected to the electric device.

[0016] (5) In the wire harness of (4), the electric device may distribute power supplied from a vehicle power source, a first power line among the power lines connecting the first harness connector and the device connector may supply the power from the power source to the electric device, and the magnetic core may include a first magnetic core covering the first power line. This allows for easy noise suppression of the first power line that supplies power from the power source to the electric device.

[0017] (6) In the wire harness of either (4) or (5), the electric device distributes power supplied from a vehicle power source, a second power supply line of the power supply lines connecting the second harness connector and the device connector supplies the power from the electric device to a load of the vehicle, and the magnetic core may include a second magnetic core covering the second power supply line. This makes it possible to easily implement noise countermeasures for the second power supply line that supplies power from the electric device to the load.

[0018] [Details of the embodiments of the present disclosure] Specific examples of the wire harness of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0019] [Embodiment 1] The wire harness according to the first embodiment will be described below. Fig. 1 is an explanatory diagram showing a wiring system including a wire harness 30 in a vehicle 10. Fig. 2 is a perspective view showing a state in which the wire harness 30 according to the embodiment is arranged in the vehicle 10. The front-rear direction (FRONT, REAR), left-right direction (LEFT, RIGHT), and up-down direction (UP, LOW) shown in Fig. 2 correspond to the front-rear direction, left-right direction, and up-down direction of the vehicle 10. Fig. 3 is a plan view showing the wire harness 30 according to the embodiment. Fig. 4 is an enlarged view of region A in Fig. 3. Fig. 5 is a cross-sectional view taken along line VV in Fig. 4. In Fig. 4, a cover 56 of a protector 54 is indicated by a two-dot chain line.

[0020] <Overall structure of the wire harness> The wire harness 30 is disposed in, for example, a vehicle 10. The wire harness 30 is interposed between a plurality of types of mating wire harnesses 20 and electrical equipment 22, and connects each of the plurality of types of mating wire harnesses 20 to the electrical equipment 22. The plurality of types of mating wire harnesses 20 are disposed in different areas of the vehicle 10. The wire harness 30 shown in FIG. 2 also connects the plurality of types of mating wire harnesses 20 to each other. The wire harness 30 includes a plurality of wires 50, a base member 54, and noise suppression components 70 and 72.

[0021] The multiple wirings 50 include device wirings 51 for connecting each of the multiple types of mating wire harnesses 20 to the electric device 22. One end of the device wirings 51 is connected to the mating wire harness 20, and the other end is connected to the electric device 22. In this embodiment, the wirings 50 of the wire harness 30 also include through circuit wirings 52 for connecting the multiple types of mating wire harnesses 20 together. One end and the other end of the through circuit wirings 52 are connected to different mating wire harnesses 20, respectively. The multiple wirings 50 are held by a base member 54 so as to run along a flat path. The wire harness 30 as a whole has a flat shape. Because the wire harness 30 has a flat shape, the wire harness 30 can be easily arranged along one main surface of a panel.

[0022] The base member 54 is a member that keeps the plurality of wirings 50 in a flat shape. The base member 54 may also be a member that protects the plurality of wirings 50. The base member 54 may be formed into a shape that branches or bends depending on the connection position between the wire harness 30 and the electric device 22, the connection position between the wire harness 30 and the mating wire harness 20, and the route of the wirings 50 between these connection positions.

[0023] The noise suppression components 70, 72 cover target wirings among the plurality of wirings 50. The noise suppression components 70, 72 are positioned on the base member 54. The noise suppression components 70, 72 include a magnetic core 70 and a metal foil 72. The target wirings of the magnetic core 70 and the metal foil 72 are different from each other. In this embodiment, the target wiring of the magnetic core 70 is the power line 50P, and the target wiring of the metal foil 72 is the signal line 50S.

[0024] The magnetic core 70 is attached to the power line 50P to reduce electromagnetic waves emitted from the power line 50P. The magnetic core 70 is a block-shaped component containing a magnetic material. The magnetic core 70 has a through-hole 70h. The power line 50P is inserted through the through-hole 70h. This causes the inner circumferential surface of the through-hole 70h of the magnetic core 70 to face the outer circumferential surface of the power line 50P. The magnetic core 70, which contains a magnetic material, absorbs electromagnetic waves emitted from the power line 50P and converts the energy of the electromagnetic waves into mechanical energy such as vibration or thermal energy. This reduces the adverse effects of electromagnetic waves emitted from the power line 50P on surrounding devices, etc. The magnetic material of the magnetic core 70 is, for example, ferrite or silicon steel, and can be selected appropriately depending on the frequency band of the electromagnetic noise to be reduced. For example, the magnetic core 70 is formed into a cylindrical shape.

[0025] The metal foil 72 is attached to the signal line 50S to act as an electromagnetic shield for the signal line 50S. The metal foil 72 is a flexible sheet-shaped member containing a metal material such as aluminum or copper. The metal foil 72 is bent to surround the signal line 50S.

[0026] <Wire harness layout area and connection relationship> For convenience, examples of the layout area of ​​the wire harness 30 in the vehicle 10, the mating wire harness 20, and the electrical device 22 will be described first.

[0027] The arrangement area of ​​the wire harness 30 in the vehicle 10 is not particularly limited and can be set as appropriate. Considering that the wire harness 30 is interposed between multiple types of mating wire harnesses 20, the arrangement area of ​​the wire harness 30 is preferably an area close to the boundary between multiple areas in which the multiple types of mating wire harnesses 20 are respectively arranged. Here, the arrangement area of ​​the wire harness 30 will be described as being the area where the dash panel 11 and the cowl side panel 15 intersect.

[0028] The dash panel 11 separates the engine compartment from the passenger compartment in the vehicle 10. The engine compartment is located in front of the dash panel 11, and the passenger compartment is located behind the dash panel 11. Typically, an instrument panel is provided behind the dash panel 11 and is exposed to the passenger compartment. The dash panel 11 includes a main body portion 12 and a protruding portion 13. The main surface of the main body portion 12 of the dash panel 11 extends in the left-right and up-down directions in the vehicle 10. The protruding portion 13 is provided below the left-right ends of the main body portion 12. The protruding portion 13 is a portion that protrudes toward the passenger compartment beyond the main body portion 12. The protruding portion 13 is a portion for providing a wheelhouse in the vehicle 10.

[0029] The cowl side panels 15 are continuous with the dash panel 11 on both the left and right sides of the dash panel 11. The main surfaces of the cowl side panels 15 extend in the front-to-rear and up-to-down directions of the vehicle 10. FIG. 2 shows the area where the dash panel 11 intersects with the cowl side panel 15 provided on the left side of the dash panel 11. The lower front edge of the cowl side panel 15 is curved in accordance with the protruding portion 13.

[0030] An end of an instrument panel reinforcement 17 is fixed to the cowl side panel 15. The instrument panel reinforcement 17 is provided between the dash panel 11 and the instrument panel. The instrument panel reinforcement 17 is a rod-shaped member that is long in the left-right direction.

[0031] A floor panel 18 is provided below the area where the dash panel 11 and the cowl side panel 15 intersect. The main surface of the floor panel 18 extends in the front-rear and left-right directions of the vehicle 10.

[0032] When the arrangement area of ​​the wire harness 30 is the area where the dash panel 11 and the cowl side panel 15 intersect, the mating wire harness 20 may be an engine room harness 20A, an instrument panel harness 20B, a door harness 20C, a floor harness 20D, or the like. The engine room harness 20A is arranged in the engine room. The instrument panel harness 20B is arranged to extend along the instrument panel reinforcement 17. The door harness 20C is arranged in the door. The floor harness 20D is arranged on the floor. The mating wire harness 20 may also be a roof harness 20E. The roof harness 20E is arranged on the roof.

[0033] In this disclosure, the term "engine room" is a convenient name for the front compartment located in front of the vehicle interior, and does not necessarily mean that the engine is located in the engine room.Similarly, in this disclosure, the term "engine room harness 20A" is a convenient name for the mating wire harness 20 located in the front compartment located in front of the vehicle interior.

[0034] The layout area of ​​the wire harness 30 and the layout area of ​​the engine room harness 20A are separated by a dash panel 11. Here, a through hole 14 is formed in the dash panel 11. The wire harness 30 and the engine room harness 20A are connected through the through hole 14. Similarly, the layout area of ​​the wire harness 30 and the layout area of ​​the door harness 20C are separated by a cowl side panel 15. Here, a through hole 16 is formed in the cowl side panel 15. The wire harness 30 and the door harness 20C are connected through the through hole 16. For example, a rocker portion 18a is located at the side edge of a floor panel 18 of the vehicle. An end of the floor harness 20D connected to the wire harness 30 extends in the fore-and-aft direction of the vehicle along the rocker portion 18a. The roof is located above the area where the dash panel 11 and the cowl side panel 15 intersect. For example, the end of the roof harness 20E that is connected to the wire harness 30 extends along the A-pillar 19 from the roof to the area where the dash panel 11 and the cowl side panel 15 intersect or in the vicinity thereof.

[0035] <About electrical equipment> The electrical device 22 is arranged in the same area as the wiring harness 30. In the example shown in Fig. 2, the electrical device 22 is fixed to the cowl side panel 15. The electrical device 22 may also be fixed to the dash panel 11, the instrument panel reinforcement 17, the floor panel 18, or the like.

[0036] The electrical device 22 may be, for example, an ECU (electronic control unit). The vehicle 10 may be provided with one central ECU and multiple zone ECUs. A zone ECU is provided for each of the multiple zones into which the vehicle 10 is divided. The zone ECU mainly controls the devices present in that zone. The central ECU supervises the multiple zone ECUs to achieve cooperative control of the entire vehicle 10. The electrical device 22 may be, for example, a zone ECU. In this case, the control targets of the electrical device 22 as a zone ECU include multiple devices connected to the engine room harness 20A, the instrument panel harness 20B, the door harness 20C, and the floor harness 20D.

[0037] However, the electrical device 22, which is an ECU, may be a general ECU other than a zone ECU. Also, the electrical device 22 does not have to be an ECU, and may be, for example, a junction block (also called an electrical connection box).

[0038] The electrical device 22 in this embodiment distributes power supplied from a vehicle power source. For example, the engine room harness 20A is connected to a power source such as a vehicle battery. The electrical device 22 is connected to a power source such as a vehicle battery via the wire harness 30 and the engine room harness 20A and receives power from the battery. The electrical device 22 then supplies power to loads (e.g., meters, switches, etc.) connected to the instrument panel harness 20B via the wire harness 30 and the instrument panel harness 20B. Similarly, the electrical device 22 supplies power to loads connected to the door harness 20C and the floor harness 20D.

[0039] The electrical device 22 includes a power distribution circuit for distributing power supplied from the vehicle's power supply. The power distribution circuit includes conductor portions such as electric wires or patterns on a circuit board. The power distribution circuit may include circuit components connected to the conductor portions. The circuit components may be, for example, electromagnetic relays, semiconductor switches, fuses, integrated circuits (ICs), etc. The electrical device 22 may include a case that houses the power distribution circuit. A connector may be provided on the case. The power distribution circuit inside the case and the wire harness 30 may be connected via the connector provided on the case.

[0040] <About wire harnesses> In this embodiment, the wire harness 30 includes a plurality of types of connectors 42, 44 in addition to the wiring 50, the base member 54, and the noise suppression components 70, 72.

[0041] The multiple types of connectors 42, 44 have different connection destinations. The multiple types of connectors 42, 44 are arranged at positions corresponding to the connection positions of the electrical device 22 and the mating wire harness 20 to be connected.

[0042] Connectors 42, 44 are connected to each of a plurality of ends of the wiring 50. The wiring 50 is connected to the electric device 22 via the connector 42, and is connected to the mating wire harness 20 via the connector 44. It is not essential that the wiring 50 be connected to the electric device 22 and the mating wire harness 20 via the connectors 42, 44. At least a portion of the wiring 50 may be wiring that is directly drawn out from the electric device 22 or wiring that is directly connected to wiring in the mating wire harness 20.

[0043] In this embodiment, the wiring 50 is an electric wire 53. The electric wire 53 has a core wire 53a and a coating 53b covering the core wire 53a. The electric wire 53 is a solid wire in which one core wire 53a is covered by one coating 53b. The electric wire may be a composite wire in which multiple core wires are covered by one coating. The wiring 50 includes a power supply wire 50P and a signal wire 50S. The conductor cross-sectional area of ​​the power supply wire 50P may be larger than the conductor cross-sectional area of ​​the signal wire 50S. The electric wire 53 used as the power supply wire 50P may be thicker than the electric wire 53 used as the signal wire 50S. When the multiple wirings 50 include multiple power supply wires 50P with different conductor cross-sectional areas, a magnetic core 70 may be attached to the power supply wire 50P with the largest conductor cross-sectional area among the multiple power supply wires 50P.

[0044] In this embodiment, the base member 54 is a protector 54. The protector 54 has a main body 55 and a lid 56. A groove 55d is formed in the main body 55. The wiring 50 is housed in the groove 55d. The lid 56 covers the opening of the groove 55d. The protector 54 is a molded product made of a relatively rigid resin and does not have the flexibility to bend along with the wiring 50. The protector 54 is molded in advance to have a shape that corresponds to the path of the wiring 50 and has the rigidity to maintain that shape. By being housed in the protector 54, the wiring 50 is held in a state that corresponds to the shape of the protector 54, that is, in a state that follows the predetermined path of the wiring 50.

[0045] The main body 55 has a bottom plate 55a and multiple side plates 55b. The multiple side plates 55b protrude from the main surface of the bottom plate 55a. The main body 55 has enough rigidity to maintain the side plates 55b protruding from the bottom plate 55a. The multiple side plates 55b are arranged at intervals in the width direction of the bottom plate 55a. The side plates 55b are provided at both ends of the bottom plate 55a in the width direction. The side plates 55b separate the inside and outside of the main body 55. The protrusion dimension of the side plates 55b from the bottom plate 55a is smaller than the width dimension of the bottom plate 55a. Therefore, the main body 55 has a flat storage space that accommodates the multiple wires 50. Furthermore, by providing the side plates 55b along a predetermined path, a flat storage space that accommodates the multiple wires 50 is formed in the protector 54 along the predetermined path. The wire harness 30 is maintained in a flat shape by accommodating the plurality of wires 50 in the flat accommodating space. It is not essential that the wire harness 30 be flat. The protector may be formed to have approximately the same width and height dimensions.

[0046] In this embodiment, a plate portion is also provided in the middle portion of the bottom plate 55a along the width direction. The plate portion in the middle portion of the bottom plate 55a along the width direction is a partition plate 55c. The partition plate 55c divides the internal space of the main body 55. By providing the partition plate 55c, a plurality of grooves 55d are provided in parallel in the internal space of the main body 55. On both sides of each groove 55d, there are side plates 55b or partition plates 55c as side walls.

[0047] Partition plate 55c may be partially provided at the end on the device connector 42 side. In this case, a configuration in which a plurality of parallel storage spaces are formed in the portion where partition plate 55c is provided is combined with a configuration in which a single storage space is formed in the portion where partition plate 55c is not provided. Either the configuration in which a plurality of parallel storage spaces are formed in the portion where partition plate 55c is provided or the configuration in which a single storage space is formed in the portion where partition plate 55c is not provided may be omitted, and the other may be continuous.

[0048] Here, three partition plates 55c are provided in parallel at the end on the device connector 42 side. As a result, four grooves 55d are provided in parallel in the internal space of the main body 55 at the end on the device connector 42 side. Three of the four grooves 55d each accommodate one wire 50. The wire 50 is a power line 50P or a ground wire. One of the four grooves 55d accommodates a plurality of wires 50 together. The wire 50 is a signal line 50S.

[0049] The lid 56 has a lid plate portion 56a and a side plate portion 56b. The lid plate portion 56a covers the opening of the groove 55d. The side plate portion 56b overlaps the outside of the side plate 55b. The side plate portion 56b may be omitted. The lid 56 is attached to the main body 55. For example, a locking portion provided on the lid 56 may lock into a receiving portion provided on the main body 55, thereby locking the lid 56 to the main body 55.

[0050] The connectors 42, 44 may be held by a protector 54. The wiring 50 may extend from an end of the protector 54, and the connectors 42, 44 may be provided separately from the protector 54.

[0051] The protector 54 may have a fixing portion for fixing it to an object on which it is placed. The fixing portion may be configured to allow attachment of a fixing tool such as a screw or a clip.

[0052] The magnetic core 70 is positioned relative to the protector 54 in the radial direction of the wire 50 by being accommodated in the groove 55d together with the wire 50.

[0053] The protector 54 may be provided with a positioning portion that positions the magnetic core 70 in the extension direction of the wiring 50. In this embodiment, the positioning portion is provided in the form of a positioning piece 55e that protrudes from the side wall of the groove 55d into the groove 55d. The positioning pieces 55e are provided on both sides of the magnetic core 70 along the extension direction of the wiring 50. When the magnetic core 70 attempts to move inside the protector 54 along the extension direction of the wiring 50, it gets caught on the positioning piece 55e. This positions the magnetic core 70 in the protector 54 along the extension direction of the wiring 50.

[0054] Alternatively, the positioning portion may be configured such that the distance between the side walls on both sides of the groove 55d in the portion that accommodates the wiring 50 is narrower than the distance between the side walls on both sides of the groove 55d in the portion that accommodates the magnetic core 70. In this case, when the magnetic core 70 attempts to move in the direction in which the wiring 50 extends, it is caught on the side walls of the portion that accommodates the wiring 50 and is thereby positioned. Alternatively, the positioning portion may be a recessed portion provided in the bottom plate 55a of the portion that accommodates the magnetic core 70. Alternatively, the positioning portion may be provided in the lid 56.

[0055] In addition, the distance between the bottom plate 55a of the main body 55 and the lid 56 may be the same as or smaller than the diameter of the magnetic core 70, and the magnetic core 70 may be sandwiched between the bottom plate 55a of the main body 55 and the lid 56, thereby positioning the magnetic core 70 in the extension direction of the wiring 50.

[0056] In this embodiment, as shown in FIG. 5 , multiple segments 71 are combined to form the magnetic core 70. Here, a pair of segments 71, each divided in half, are combined to form the magnetic core 70. Each of the segments 71 has an arrangement surface on which the power line 50P is arranged. The arrangement surface corresponds to half of the inner circumferential surface of the through-hole 70h. The segments 71 are combined so that their circumferential end faces abut against each other. The segments 71 are aligned in the direction in which the main body 55 and the lid 56 join together. For example, with one of the segments 71 placed on the bottom plate 55a of the groove 55d, the power line 50P is arranged on the arrangement surface of the segment 71. The other segment 71 is then combined with the other segment 71 to form the annular magnetic core 70. Thereafter, the cover 56 is attached to the main body 55, thereby restricting movement of the magnetic core 70 in the radial direction and extension direction of the wiring 50, and the magnetic core 70 is positioned in the protector 54.

[0057] Here, the pair of divided bodies 71 are not provided with locking portions for maintaining the combined state. The pair of divided bodies 71 may be provided with locking portions for maintaining the combined state. Also, here, a container for housing the divided bodies 71 is not provided. A container for housing the divided bodies 71 may be provided. The container may be provided with the locking portions.

[0058] The metal foil 72 covers the signal line 50S that fits in the groove 55d. The metal foil 72 includes a first metal foil portion 73 and a second metal foil portion 74. The first metal foil portion 73 is provided between the main body 55 and the signal line 50S. The first metal foil portion 73 extends along the bottom plate 55a and sidewalls inside the groove 55d and bends where the bottom plate 55a and sidewalls are connected. The second metal foil portion 74 is provided between the lid 56 and the signal line 50S. The second metal foil portion 74 extends along the lid 56 at the top of the groove 55d.

[0059] The metal foil 72 has a clamping portion 75 that is clamped between the main body 55 and the lid 56. The clamping portion 75 is clamped between the lid 56 and the tip of the side wall of the groove 55d on the side opposite the bottom plate 55a. The clamping portion 75 positions the metal foil 72 in the protector 54. The metal foil 72 may also be positioned in the protector 54 by a configuration other than the clamping portion 75. For example, the metal foil 72 may be positioned by being attached to the protector 54.

[0060] The base member may be a member other than the protector 54. A first modified example of the base member is shown in Figures 6 and 7. Figure 6 is a plan view showing a wire harness 130 according to the first modified example. Figure 7 is a cross-sectional view taken along line VII-VII in Figure 6.

[0061] In the wire harness 130 according to the first modified example, the base member 58 is a flexible sheet member 58. The sheet member 58 has flexibility that allows it to follow the bending of the wiring 50. This allows the base member 58 to be easily provided. Furthermore, the wiring 50 and the sheet member 58 can be bent together. The sheet member 58 covers the wiring 50 from one side.

[0062] The sheet member 58 is, for example, a resin sheet. The sheet member 58 may be a sheet containing a fibrous material such as a nonwoven fabric. The sheet member 58 may be a sheet having a solid cross section.

[0063] The wiring 50 may be fixed to the sheet member 58. The manner in which the wiring 50 and the sheet member 58 are fixed is not particularly limited and can be set as appropriate. For example, the wiring 50 and the sheet member 58 may be fixed by fusion. In this case, a resin contained in at least one of the coating 53b of the electric wire 53 serving as the wiring 50 and the main surface of the sheet member 58 melts and adheres to the surface of the opposing member to be fixed. Also, for example, the wiring 50 and the sheet member 58 may be attached with an adhesive or a sticky material. A plurality of wirings 50 are arranged on the main surface of the sheet member 58. The wirings 50 may be fixed to the sheet member 58 to maintain a parallel state.

[0064] When the base member 58 is a sheet member 58, the magnetic core 70 and the sheet member 58 are positioned as follows. Specifically, slits 58S1 and 58S2 are formed in the sheet member 58 on both sides of the power line 50P. The magnetic core 70 passes through the slits 58S1 and 58S2. The magnetic core 70 covers the portion of the sheet member 58 between the slits 58S1 and 58S2 together with the power line 50P. This positions the magnetic core 70 and the sheet member 58. For example, a binding member such as adhesive tape or a cable tie may be provided around the periphery of the pair of segments 71. For example, the portion of the sheet member 58 between the slits 58S1 and 58S2 of the magnetic core 70 may be sandwiched between the outer surface of the power line 50P and the inner surface of the magnetic core 70. Also, for example, in the extension direction of the wiring 50, the dimensions of the slits 58S1 and 58S2 may be the same as or slightly larger than the dimensions of the magnetic core 70, and the spacing between the slits 58S1 and 58S2 may be the same as or slightly smaller than the inner diameter of the magnetic core 70.

[0065] When the base member 58 is a sheet member 58, the metal foil 172 and the sheet member 58 are positioned as follows. That is, slits 58S3 and 58S4 are formed in the sheet member 58 on both sides of the signal wire 50S. The metal foil 172 passes through the slits 58S3 and 58S4. Here, the slits 58S3 and 58S4 are formed in the middle portion of the sheet member 58, excluding one end and the other end along the extension direction of the signal wire 50S. The metal foil 172 covers the portion of the sheet member 58 between the slits 58S3 and 58S4, together with the signal wire 50S.

[0066] 7, the signal wire 50S is entirely surrounded by a single metal foil 172. As in the above-described wire harness 30, the signal wire 50S may be entirely surrounded by a plurality of metal foils 72.

[0067] Fig. 8 is an exploded plan view showing a wire harness 230 according to the second modified example, and Fig. 9 is a side view showing the wire harness 230 according to the second modified example.

[0068] The wire harness 230 further includes a metal plate 80. The main body 55 of the protector 54 is interposed between the wires 50 and the metal plate 80. The metal plate 80 is a plate that extends along the wires 50. In other words, the multiple wires 50 include portions that extend along the metal plate 80. The metal plate 80 is arranged along the flat shape along which the multiple wires 50 extend. The metal plate 80 is a plate-shaped member made of, for example, iron, aluminum, copper, or the like.

[0069] The metal foil 272 is electrically connected to the metal plate 80. The metal plate 80 may be electrically connected to a metal body panel BP of a vehicle. The metal body panel BP of a vehicle is generally used as a body earth. The metal foil 272 is electrically connected to the body earth via the metal plate 80.

[0070] The metal foil 72 of the wire harness 30 is disposed inside the protector 54. The metal foil 272 of the wire harness 230 has a foil main body 76 located inside the protector 54 and an extending portion 77 extending from the foil main body 76 to the outside of the protector 54. The extending portion 77 extends from an end of the protector 54 to the outside of the protector 54 together with the signal line 50S. The extending portion 77 comes into contact with the metal plate 80 through the gap between the connector 42 and the protector 54. This electrically connects the metal foil 272 and the metal plate 80.

[0071] The extending portion 77 and the metal plate 80 may be joined. For example, the contact portion between the extending portion 77 and the metal plate 80 may be welded. The foil main body 76 has a first metal foil portion 73 and a second metal foil portion 74, similar to the metal foil 72 described above. The extending portion 77 extends from the first metal foil portion 73. The extending portion 77 may also extend from the second metal foil portion 74. The extending portion 77 covers only a portion of the periphery of the signal line 50S outside the protector 54. The extending portion 77 may also cover the entire periphery of the signal line 50S outside the protector 54.

[0072] The above-described wire harness 130 in which the base member 58 is the sheet member 58 may also include the metal plate 80 as in the wire harness 230, and the metal foil 172 may be connected to the metal plate 80. In the case of the above-described wire harness 130, the metal foil 172 has a portion located on the outer surface of the sheet member 58 (the surface opposite to the surface on which the signal wire 50S is arranged), so that the portion of the metal foil 72 located on the outer surface of the sheet member 58 can come into contact with the metal plate 80 even without providing the extension portion 77.

[0073] The metal plate 80 may be used as a heat sink for dissipating heat from the electric device 22. The metal plate 80 may include a wiring arrangement region 81 where the wiring 50 is arranged and an equipment arrangement region 82 where the electric device 22 is arranged. The equipment arrangement region 82 may be thermally connected to the electric device 22. The equipment arrangement region 82 may be thermally connected to a metal portion of the electric device 22 via insulating heat-conductive rubber or the like. The heat-conductive rubber may be fixed to the electric device 22, the wire harness 230, or the metal plate 80. The heat-conductive rubber has higher thermal conductivity than air. Preferably, the heat-conductive rubber has higher thermal conductivity than the resin forming the coating 53b of the wiring 50 and the resin forming the base member. For example, the heat-conductive rubber has a thermal conductivity of 1.0 (W / mK) or more, preferably 6.5 (W / mK) or more. Instead of the thermally conductive rubber, a conductor (good electrical conductor) may thermally connect the device placement area 82 and the insulating portion of the electrical device 22 .

[0074] <Examples of wiring connections> Fig. 10 is a diagram illustrating the connection relationship between the multiple types of connectors 42, 44 and the multiple wirings 50. Fig. 11 is a diagram illustrating the connection relationship between the device connector 42, the first harness connector 44X, and the second harness connector 44Y.

[0075] The wire harness 30 includes an equipment connector 42 and multiple types of harness connectors 44. The equipment connector 42 is connected to the electrical equipment 22. Each of the multiple types of harness connectors 44 is connected to a different connector of the mating wire harness 20. In this example, the multiple types of harness connectors 44 include an engine room (ER) harness connector 44A, an instrument panel (IP) harness connector 44B, a door (DR) harness connector 44C, and a floor (FL) harness connector 44D. However, it is not necessary to provide all of the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D as the multiple types of harness connectors 44; it is preferable to provide two or more types. Furthermore, if a roof harness 20E is assumed as the mating wire harness 20, a roof harness connector 44E is provided as one of the multiple types of harness connectors 44. The roof harness connector 44E may be disposed, for example, in the vehicle, above the device connector 42, the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D. Wiring connected to the roof harness connector 44E may extend vertically beside the electrical device 22.

[0076] In the example shown in FIG. 3 , the various types of connectors 40 are one connector. That is, the device connector 42, the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D are each one connector. In the present disclosure, two or more connectors are also considered to be one type of connector if they have the same connection destination. In other words, any number of connectors connected to the same electrical device 22 or the same mating wire harness 20 are considered to be one type of connector. From another perspective, each of the multiple types of connectors 40 consists of one or more connectors (hereinafter referred to as split connectors). Each type of connector may include connectors having the same structure. Here, even if connectors have the same structure, they are considered to be different types of connectors if they have different connection destinations.

[0077] At least one of the multiple types of connectors 40 may have two or more divided connectors. For example, the connector 40 with the largest number of poles among the multiple types of connectors 40 (e.g., device connector 42) may have two or more divided connectors. This makes it easier to manufacture the connector 40 with the largest number of poles among the multiple types of connectors 40.

[0078] When the connector 40 includes multiple split connectors, it is preferable that the number of types of connectors 40 is four or more and that the number of split connectors is N or less, where N is the number of types of connectors 40 in the wire harness 30 minus two. This allows for a smaller number of pairs of connectors to be mated compared to when one type of connector 40 is connected to another type of connector 40. Specifically, here, the connectors 40 in the wire harness 30 are five types: an instrument connector 42, an engine room harness connector 44A, an instrument panel harness connector 44B, a door harness connector 44C, and a floor harness connector 44D. Therefore, when each of the instrument connector 42, the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D includes multiple split connectors, it is preferable that the number of split connectors is three or less. For example, when four mating wire harnesses 20, i.e., an engine room harness 20A, an instrument panel harness 20B, a door harness 20C, and a floor harness 20D, are connected to the electrical equipment 22, four sets of connectors must be mated. On the other hand, when the equipment connector 42 is made up of three or less divided connectors, the number of sets of connectors to be mated can be three or less.

[0079] The device wiring 51 of the plurality of wirings 50 connects the device connector 42 and the harness connector 44. The through circuit wiring 52 of the plurality of wirings 50 connects the harness connectors 44 together.

[0080] As shown in Fig. 10, here, device wirings 51A, 51B, 51C, and 51D are provided as the device wiring 51. The device wiring 51A connects the engine room harness connector 44A and the device connector 42. The device wiring 51B connects the instrument panel harness connector 44B and the device connector 42. The device wiring 51C connects the door harness connector 44C and the device connector 42. The device wiring 51D connects the floor harness connector 44D and the device connector 42. Note that each of the device wirings 51A, 51B, 51C, and 51D may be one or more.

[0081] As shown in FIG. 10 , here, through circuit wirings 52A, 52B, 52C, 52D, and 52E are provided as the through circuit wiring 52. The through circuit wiring 52A connects the engine room harness connector 44A and the instrument panel harness connector 44B. The through circuit wiring 52B connects the engine room harness connector 44A and the floor harness connector 44D. The through circuit wiring 52C connects the instrument panel harness connector 44B and the door harness connector 44C. The through circuit wiring 52D connects the instrument panel harness connector 44B and the floor harness connector 44D. The through circuit wiring 52E connects the door harness connector 44C and the floor harness connector 44D. Note that each of the through circuit wirings 52A, 52B, 52C, 52D, and 52E may be one or more.

[0082] Therefore, here, out of the ten paths between the five types of connectors 42, 44, the wiring 50 is provided in nine paths other than the one path between the engine room harness connector 44A and the door harness connector 44C.

[0083] As shown in FIG. 11 , in the present disclosure, the multiple types of harness connectors 44 include a first harness connector 44X and a second harness connector 44Y. The first harness connector 44X is connected to a first mating wire harness 20X. The second harness connector 44Y is connected to a second mating wire harness 20Y. The three types of connectors 42, 44, i.e., the device connector 42, the first harness connector 44X, and the second harness connector 44Y, are connected to each other by wiring 50. Specifically, the first harness connector 44X and the second harness connector 44Y are connected to the device connector 42 by multiple device wirings 51. The device connector 42 and the first harness connector 44X are connected by first device wirings 51X. The device connector 42 and the second harness connector 44Y are connected by second device wirings 51Y. The first harness connector 44X and the second harness connector 44Y are connected by a through circuit wiring 52. We will now explain whether the four types of harness connectors 44, namely, the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D, qualify as the first harness connector 44X and the second harness connector 44Y.

[0084] Six combinations are generated by selecting two of the four types of harness connectors 44, i.e., the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D. Of the six combinations, five combinations, excluding one combination consisting of the engine room harness connector 44A and the door harness connector 44C, have through-circuit wiring 52 connecting the two types of harness connectors 44 in that combination. Furthermore, all of the four types of harness connectors 44, i.e., the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D, are connected to the device connector 42 via device wiring 51. Therefore, of the six combinations, five combinations, excluding one combination consisting of the engine room harness connector 44A and the door harness connector 44C, can be considered to be combinations of the first harness connector 44X and the second harness connector 44Y.

[0085] On the other hand, here, the wire harness 30 does not have the through circuit wiring 52 that connects the engine room harness connector 44A and the door harness connector 44C. Therefore, here, the engine room harness connector 44A and the door harness connector 44C are not considered to be a combination of the first harness connector 44X and the second harness connector 44Y.

[0086] As the multiple types of harness connectors 44, three or more types of harness connectors 44 may be provided, and the wire harness 30 may have through circuit wiring 52 connecting the three or more types of harness connectors 44 to each other. Four combinations are generated by selecting three types from the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D. Of the four combinations, two combinations, excluding two combinations that simultaneously include the engine room harness connector 44A and the door harness connector 44C, have through circuit wiring 52 connecting the three types of harness connectors 44 to each other. Of the four combinations, two combinations, excluding two combinations that simultaneously include the engine room harness connector 44A and the door harness connector 44C, can be considered to be the three or more types of harness connectors 44.

[0087] Specifically, the engine room harness connector 44A, the instrument panel harness connector 44B, and the floor harness connector 44D are connected to one another via through circuit wiring 52A, 52B, and 52D. Therefore, the combination of the engine room harness connector 44A, the instrument panel harness connector 44B, and the floor harness connector 44D can be considered to be the three or more types of harness connectors 44. Similarly, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D are connected to one another via through circuit wiring 52C, 52D, and 52E. Therefore, the combination of the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D can be considered to be the three or more types of harness connectors 44.

[0088] However, a through-circuit wiring 52 that connects the engine room harness connector 44A and the door harness connector 44C may be provided in the wire harness 30. In this case, the engine room harness connector 44A, the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D are connected to one another via the through-circuit wiring 52.

[0089] The wiring 50 can also be understood to include a plurality of wirings 51X, 51Y branching from the device connector 42 and connected to the first harness connector 44X and the second harness connector 44Y.

[0090] The first device wiring 51X and the second device wiring 51Y each include a power line 50P and a signal line 50S. A magnetic core 70 is provided in each power line 50P, and a metal foil 72 is provided in each signal line 50S.

[0091] Based on the above example of the connection relationship of the wiring 50, an example of the arrangement of the wire harness 30 in the vehicle 10 will be described.

[0092] 2, a portion of the wire harness 30 is arranged along the dash panel 11. The wiring portion extending from the engine room harness connector 44A is held so as to be arranged along the dash panel 11.

[0093] Another part of the wire harness 30 is arranged along the cowl side panel 15. The instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D are aligned in the height direction, and the wiring portions extending from the instrument panel harness connector 44B, the door harness connector 44C, and the floor harness connector 44D are held so as to be arranged along the cowl side panel 15.

[0094] Furthermore, wire harness 30 is arranged in a state where it is bent in the thickness direction between a portion arranged along dash panel 11 and a portion arranged along cowl side panel 15. For example, protector 54 may be provided in the portion of wire harness 30 arranged along cowl side panel 15. Wiring 50 may be bent outside protector 54. Sheet member 58 may be provided in the portion of wire harness 30 arranged along cowl side panel 15 and a portion arranged along dash panel 11. Sheet member 58 may be bent together with wiring 50 between the portion arranged along cowl side panel 15 and the portion arranged along dash panel 11.

[0095] The length of each of the multiple wirings 50 is within one meter. In the wire harness 30, the longest wiring 50 is the through circuit wiring 52B connecting the engine room harness connector 44A and the floor harness connector 44D, or the through circuit wiring 52C connecting the instrument panel harness connector 44B and the floor harness connector 44D. The lengths of these through circuit wirings 52B and 52C are within one meter.

[0096] <Configuration example for keeping wiring flat> A third modified example relating to the wiring 50 and the base member 54 is shown in Fig. 12. As shown in the figure, a plurality of wiring groups 360, 364 may be stacked to form a wire harness 330. In the example shown in Fig. 12, some of the plurality of wirings 50 are grouped together to form a first wiring group 360, and another portion of the plurality of wirings 50 are grouped separately from the first wiring group 360 to form a second wiring group 364. Here, the plurality of wirings 50 are fixed to and grouped together by base members 362, 366.

[0097] First wiring group 360 and second wiring group 364 are each formed flat and stacked on top of each other. Here, first wiring group 360 has a plurality of electric wires 361 and a flat base member 362 that keeps the plurality of electric wires 361 flat. Here, electric wires 361 and base member 362 are fixed. Electric wires 361 and base member 362 do not have to be fixed. Furthermore, second wiring group 364 has a plurality of electric wires 365 and a flat base member 366 that keeps the plurality of electric wires 365 flat. Here, electric wires 365 and base member 366 are fixed. Electric wires 365 and base member 366 do not have to be fixed.

[0098] The first wiring group 360 and the second wiring group 364 are stacked so that the main surface of the base member 362 to which the electric wire 361 is fixed faces the main surface of the base member 366 to which the electric wire 365 is fixed. This allows the electric wires 361 and 365 to be surrounded and protected by the base members 362 and 366. However, the first wiring group 360 and the second wiring group 364 may also be stacked so that the main surface of the base member 362 to which the electric wire 361 is fixed faces the main surface of the base member 366 to which the electric wire 365 is not fixed, or so that the main surface of the base member 366 to which the electric wire 365 is fixed faces the main surface of the base member 362 to which the electric wire 361 is not fixed. In addition, the first wiring group 360 and the second wiring group 364 may be stacked so that the main surface of the base member 362 to which the electric wire 361 is not fixed faces the main surface of the base member 366 to which the electric wire 365 is not fixed.

[0099] The first wiring group 360 and the second wiring group 364 are stacked so that the electric wires 361 and the electric wires 365 overlap each other. The electric wires 361 and 365 are arranged in two layers, with one layer of the electric wires 361 and one layer of the electric wires 365 overlapping each other. Depending on the space available where the wire harness 30 is arranged, it may be desirable to reduce the width of at least a portion of the wire harness 30 even if this results in a slight increase in the thickness. In such a case, for example, the electric wires 361 and 365 may be arranged in three or more layers. Alternatively, for example, the base members 362 and 366 may not be provided, and the electric wires 361 and 365 may be bundled together with a bundling member such as tape to have a circular cross section.

[0100] The base member 362 has extension pieces 362a. The extension pieces 362a are provided on both sides of the portion where the electric wires 361 are arranged. The base member 366 also has similar extension pieces 366a. The extension pieces 362a of the base member 362 and the extension pieces 366a of the base member 366 are fixed to each other, thereby fixing the first wiring group 360 and the second wiring group 364. However, the extension pieces 362a of the base member 362 and the extension pieces 366a of the base member 366 do not have to be fixed to each other.

[0101] <Examples of how to separate multiple wiring> When the first wiring group 360 and the second wiring group 364 are laminated to form the wire harness 330 as in the example shown in Fig. 12, the manner in which the plurality of wirings 50 are divided into the first wiring group 360 and the second wiring group 364 is not particularly limited and can be set as appropriate. Examples of how the plurality of wirings 50 are divided will be described with reference to Figs. 13 and 14. Fig. 13 is a diagram showing one example of how the plurality of wirings 50 are divided. Fig. 14 is a diagram showing another example of how the plurality of wirings 50 are divided.

[0102] In the example shown in FIG. 13 , the multiple wirings 50 are sorted based on the device wirings 51 and the through circuit wirings 52. Specifically, the majority of the first wiring group 360A are device wirings 51. The majority of the second wiring group 364A are through circuit wirings 52. 60% or more of the first wiring group 360A may be device wirings 51, 70% or more of the first wiring group 360A may be device wirings 51, 80% or more of the first wiring group 360A may be device wirings 51, or 90% or more of the first wiring group 360A may be device wirings 51. Similarly, 60% or more of the second wiring group 364A may be device wirings 52, or 70% or more of the first wiring group 360A may be device wirings 52, or 80% or more of the second wiring group 364A may be device wirings 52, or 90% or more of the second wiring group 364A may be device wirings 52. Furthermore, all (100%) of the second wiring group 364 may be the through circuit wirings 52.

[0103] In the example shown in FIG. 13, all (100%) of the first wiring group 360A are device wirings 51. Furthermore, 90% or more of the second wiring group 364A are through circuit wirings 52. Of the device wirings 51, device wiring 51A connecting the engine room harness connector 44A and the device connector 42 is provided in the second wiring group 364A. Of the device wirings 51, device wirings 51B, 51C, and 51D excluding device wiring 51A are provided in the first wiring group 360A. All of the through circuit wirings 52 are provided in the second wiring group 364A.

[0104] In the first wiring group 360A, the electric wires 361 are arranged so as not to cross each other on the base member 362. In the second wiring group 364A, the electric wires 365 are arranged so as not to cross each other on the base member 366. This prevents the first wiring group 360 and the second wiring group 364 from becoming thicker, and prevents the wire harness 30 in which the first wiring group 360 and the second wiring group 364 are stacked from becoming thicker. However, at least one of the first wiring group 360 and the second wiring group 364 may be provided with an intersection where the electric wires cross each other on the base member.

[0105] 14, the wirings 50 are sorted into a first wiring group 360B and a second wiring group 364B based on whether they are power lines 50P or signal lines 50S. Specifically, the majority of the first wiring group 360B are power lines 50P, and the majority of the second wiring group 364B are signal lines 50S. Alternatively, the proportion of power lines 50P in the first wiring group 360B is higher than the proportion of power lines in the second wiring group 364B. This allows most of the power lines 50P to be separated from most of the signal lines 50S.

[0106] The proportion of power supply lines 50P in the first wiring group 360B is not particularly limited and can be set as appropriate. For example, the proportion of power supply lines 50P in the first wiring group 360B may be 50% or more, or may be less than 50%. In other words, the majority of the first wiring group 360B may be power supply lines 50P or signal lines.

[0107] Furthermore, a majority of all power supply lines in the wire harness 330 may be arranged in the first wiring group 360B. A majority of all signal lines in the wire harness 330 may be arranged in the second wiring group 364B. The first wiring group 360B may or may not include signal lines. The second wiring group 364B may or may not include power supply lines.

[0108] 14, of the wiring 50 connected to the door harness connector 44C and the wiring 50 connected to the floor harness connector 44D, the power supply wire 50P is provided in the first wiring group 360B, and the signal wire 50S is provided in the second wiring group 364. The power supply wire 50P1 in the first wiring group 360B connects the door harness connector 44C and the floor harness connector 44D to the device connector 42, respectively. The power supply wire 50P2 in the first wiring group 360B connects the door harness connector 44C and the floor harness connector 44D to the other harness connectors 44, respectively. The signal wire 50S1 in the second wiring group 364B connects the door harness connector 44C and the floor harness connector 44D to the device connector 42, respectively. The signal line 50S2 in the second wiring group 364B connects the door harness connector 44C and the floor harness connector 44D to the other harness connectors 44, respectively.

[0109] Of the first wiring group 360 and the second wiring group 364, only the second wiring group 364 is disposed along the dash panel 11 in the wire harness 330. Therefore, the wire harness 330 is easily bent in the thickness direction between the portion disposed along the dash panel 11 and the portion disposed along the cowl side panel 15.

[0110] 13 and 14, a magnetic core 70A is provided in the power line 50P1 of the device wiring 51A. A magnetic core 70B is provided in the power line 50P2 of the device wiring 51B. A metal foil 72 is provided in the middle of the device wiring 51B, excluding one end and the other end of the signal line 50S. The metal foil 72 is provided along the bending path of the signal line 50S.

[0111] The power line 50P1 is an example of a first power line that supplies power from a power source to the electric device 22, and the magnetic core 70A is an example of a first magnetic core that covers the first power line. Here, the first harness connector to which the first power line is connected is the engine room harness connector 44A. The power line 50P2 is an example of a second power line that supplies power from the electric device 22 to a load, and the magnetic core 70B is an example of a second magnetic core that covers the second power line. Here, the second harness connector to which the second power line is connected is a connector belonging to the group consisting of the instrument panel harness connector 44B, the door harness connector 44C, the floor harness connector 44D, and the roof harness connector 44E.

[0112] The magnetic core 70 may be provided on the side of the power supply circuit closest to the positive electrode, extending from the positive electrode to the negative electrode. The magnetic core 70A is provided on the power supply line 50P1 at the end closer to the engine room harness connector 44A. The magnetic core 70B is provided on the power supply line 50P2 at the end closer to the appliance connector 42.

[0113] <Effects, etc.> According to the wire harness 30 configured as described above, noise countermeasures for the target wiring can be implemented by the magnetic core 70 positioned on the base member 54 that keeps the plurality of wirings 50, including the target wiring, flat. This allows noise countermeasures for the wire harness 30 to be implemented easily.

[0114] In this embodiment, noise suppression components 70, 72 are provided on the device wiring 51 connected to the electric device 22. This allows the wire harness 30 to provide noise suppression for the electric device 22. This makes it possible to omit or simplify the noise suppression components of the electric device 22, thereby enabling the miniaturization of the electric device 22. Furthermore, even if noise suppression for the electric device 22 becomes necessary during system evaluation after the design of the electric device 22, the noise suppression can be provided on the wire harness 30 side without changing the design of the electric device 22.

[0115] In particular, in recent years, there has been an increase in configurations in which zone ECUs (electronic control units) are installed for each zone of a vehicle, separate from a central ECU. It is desirable to reduce the size of at least one of the central ECU and the zone ECU while taking noise countermeasures into consideration. According to this embodiment, when the electrical device 22 is used as a zone ECU, noise countermeasures for the zone ECU can be implemented by the wire harness 30, thereby enabling the zone ECU to be reduced in size.

[0116] Furthermore, the wiring to which the magnetic core 70 is attached includes the power line 50P among the plurality of device wirings 51. This allows for easy noise countermeasures for the power line 50P connected to the electric device 22.

[0117] Furthermore, the magnetic core 70 includes a first magnetic core 70A that covers the first power supply line 50P1. This allows for easy noise suppression of the first power supply line 50P1 that supplies power from the power source to the electric device 22.

[0118] The magnetic core 70 also includes a second magnetic core 70B that covers the second power line 50P2, which makes it possible to easily implement noise suppression measures for the second power line 50P2 that supplies power from the electric device 22 to the load.

[0119] Furthermore, when the magnetic core 70 is housed in the groove 55d of the protector 54 as in the wire harness 30, the magnetic core 70 can be easily positioned in the protector 54 serving as the base member 54.

[0120] Furthermore, when the magnetic core 70 covers the portion of the sheet member 58 between the slits 58S1 and 58S2 together with the power line 50P, as in the wire harness 130, the magnetic core 70 can be easily positioned on the sheet member 58 serving as the base member 58.

[0121] Fig. 15 is a perspective view showing a wire harness 430 according to the fourth modified example. Fig. 16 is an exploded perspective view showing a wire harness 430 according to the fourth modified example.

[0122] In a wire harness 430 according to the fourth modification, the shape of the connector 46 is different from the shape of the connector 44 in the wire harness 30. Specifically, at least one of the multiple types of connectors 44 is composed of multiple split connectors 47, 48. The multiple split connectors 47, 48 include a first split connector 47 and a second split connector 48. The wires 50 of the first wiring group 360 are connected to the first split connector 47. The wires of the second wiring group 364 are connected to the second split connector 48. This makes it less necessary to insert either the wires 50 of the first wiring group 360 or the wires 50 of the second wiring group 364 into the connector 44 into which either the wires 50 of the first wiring group 360 or the wires 50 of the second wiring group 364 have already been inserted, compared to the wire harness 30. This makes it easier to separately manufacture the first wiring group 360 and the second wiring group 364 and later combine them to form the wire harness 430.

[0123] Here, a first split connector 47 and a second split connector 48 are combined to form a stacked connector 46. Therefore, here, at least one type of connector 46 of the multiple types of connectors 40 is a stacked connector 46 made up of multiple split connectors 47, 48 combined with each other. The various connectors 44 may be divided in a manner other than a stacked connector 46. For example, the device connector 42 may be divided into multiple split connectors arranged in a direction intersecting the thickness direction. Two split connectors may be connected to the electrical device 22 separately without being combined.

[0124] FIG. 17 is a plan view showing a wire harness 530 according to the fifth modified example.

[0125] In the wire harness 530, the wiring 550 corresponding to the wiring 50 includes a plurality of wirings 550X, 550Y branching from the device connector 42 to a plurality of (here, two) harness connectors 544X, 544Y. The wiring 550 is fixed to a base member 558 such as a sheet member and maintained in a flat state. A metal foil 572 covers the branched portions of the plurality of wirings 550X, 550Y.

[0126] 18 is a schematic perspective view showing an arrangement area of ​​a wire harness 530 according to a fifth modified example. The arrangement area of ​​this wire harness 530 may be, for example, an area close to a rear seat or a rear luggage compartment. In this case, the mating wire harness 20 may be a floor harness, a seat harness, a rear harness, or the like. When the wire harness 530 is arranged in a curved manner and includes the metal plate 80, the metal plate 80 may be configured to be divided into a portion located on one side of the bent portion and a portion located on the other side. This makes it easy to bend the wire harness 530 at the bent portion after the metal plate 80 is attached.

[0127] In addition, at least some of the multiple types of connectors may be standby connectors fixed to a vehicle, etc. For example, at least some of the multiple types of harness connectors 44 may be standby connectors. This makes it easier to connect a mating wire harness to the harness connector 44.

[0128] Furthermore, the through circuit wiring 52 is not provided with the noise suppression components 70, 72, but the through circuit wiring 52 may also be provided with the noise suppression components 70, 72.

[0129] Furthermore, although both the magnetic core 70 and the metal foil 72 are provided as noise suppression components in the above description, this is not an essential configuration. The metal foil 72 does not necessarily have to be provided as a noise suppression component.

[0130] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory. [Explanation of symbols]

[0131] 10 vehicles 11 Dash panel 12 Main body part 13 Overhang part 14, 16 Through holes 15 Cowl side panel 17 Instrument panel reinforcement 18 Floor Panel 18a Rocker Club 19 A-pillar 20 Mating wire harness (20A engine room harness, 20B instrument panel harness, 20C door harness, 20D floor harness, 20E roof harness) 20X 1st mating wire harness 20Y Second mating wire harness 22 Electrical Equipment 30, 130, 230, 330, 530 Wire harness 42 Equipment Connectors 44 Harness connector (44A Engine room harness connector, 44B Instrument panel harness connector, 44C Door harness connector, 44D Harness connector, 44E Roof harness connector) 44X, 544X 1st harness connector 44Y, 544Y Second harness connector 46 Stacked Connector 47 First division connector 48 Second split connector 50, 550, 550X, 550Y wiring 50P power wire 50P1 1st power line 50P2 2nd power line 50S signal line 51, 51A, 51B, 51C, 51D equipment wiring 51X Wiring for 1st device 51Y 2nd device wiring 52, 52A, 52B, 52C, 52D, 52E Through circuit wiring 53, 361, 365 electric wire 53a core wire 53b Covering 54 Protector (base component) 55 Main Unit 55a bottom plate 55b side plate 55c Divider 55d groove 55e Positioning piece 56 Lid 56a Lid plate part 56b Side plate part 58, 362, 366, 558 Sheet material (base material) 58S1, 58S2, 58S3, 58S4 Slit 70 Magnetic core 70A First Magnetic Core 70B Second magnetic core 70h through hole 71 Split body 72, 172, 272 Metal foil 73 1st metal foil part 74 Second metal foil part 75 Clamping part 76 Foil body 77 Extending part 80 metal plate 81 Wiring placement area 82 Equipment placement area 360, 360A, 360B 1st wiring group 362a, 366a extension piece 364, 364A, 364B 2nd wiring group

Claims

1. Multiple wiring and a base member that maintains the plurality of wirings in a flat shape; a magnetic core positioned on the base member and covering a target wiring among the plurality of wirings; Equipped with the base member is a protector having a main body in which a groove for receiving the target wiring is formed, and a lid for covering the target wiring from the opposite side of the main body, The magnetic core is housed in the groove, The main body of the protector is provided with a positioning piece that protrudes from a wall surface of the groove and positions the magnetic core, the magnetic core is a combination of a plurality of divided bodies, The positioning pieces of the main body position the plurality of divided bodies.

2. The wire harness according to claim 1, an equipment connector to be connected to a connector of an electric equipment, and a first harness connector and a second harness connector to be connected to connectors of mating wire harnesses, the plurality of wirings include a plurality of device wirings branching from the device connector and connected to the first harness connector and the second harness connector, The target wiring includes a power supply line among the plurality of device wirings.

3. The wire harness according to claim 2, The electrical device distributes power supplied from a vehicle power source; a first power supply line connecting the first harness connector and the device connector among the power supply lines supplies the power from the power source to the electrical device; The magnetic core includes a first magnetic core covering the first power line.

4. The wire harness according to claim 2 or 3, The electrical device distributes power supplied from a vehicle power source; a second power supply line connecting the second harness connector and the device connector among the power supply lines supplies the power from the electrical device to a load of the vehicle; The magnetic core includes a second magnetic core covering the second power line.

5. Multiple wiring and a base member that maintains the plurality of wirings in a flat shape; a magnetic core positioned on the base member and covering a target wiring among the plurality of wirings; Equipped with an equipment connector to be connected to a connector of an electric equipment, and a first harness connector and a second harness connector to be connected to connectors of mating wire harnesses, the plurality of wirings include a plurality of device wirings branching from the device connector and connected to the first harness connector and the second harness connector, the target wiring includes a power supply line among the plurality of device wirings, The electrical device distributes power supplied from a vehicle power source; a first power supply line connecting the first harness connector and the device connector among the power supply lines supplies the power from the power source to the electrical device; a second power supply line connecting the second harness connector and the device connector among the power supply lines supplies the power from the electrical device to a load of the vehicle; the magnetic core includes a first magnetic core covering the first power line and a second magnetic core covering the second power line, the first magnetic core and the second magnetic core are located at a portion where the first power supply line and the second power supply line are parallel to each other on the base member.

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