wiring harness

Abstract

Cable harness (10) comprising: several conductors (20), each having a core (21) having a flat shape in a transverse cross-section, and an insulating sheath (22) enclosing an outer circumference of the core (21); several outer sheath elements (60) into which the several conductors (20) are each inserted, the several outer sheath elements (60) being independent of one another and each having a flat tubular shape; a clamping device (70, 100) attached to an outer circumferential surface of the outer sheath elements (60) and fixing the outer sheath elements (60) to a vehicle body; a tubular protective element (40) enclosing an outer circumference of the insulating sheath (22) and made of reinforced fibers; a tubular electromagnetic shielding element (50) enclosing an outer circumference of the protective element (40);and a conductive tubular element (81, 82) with an outer circumferential surface to which an end section of the electromagnetic shielding element (50) is connected, wherein an end section of the shielding element (40) is connected to the outer circumferential surface of the tubular element (81, 82) by means of a first connecting element in a state in which the end section of the shielding element (40) is held between the tubular element (81, 82) and the electromagnetic shielding element (50), and an end section of the electromagnetic shielding element (50) covers an end surface of the end section of the shielding element (40) and is connected to the outer circumferential surface of the tubular element (81, 82) by means of a second connecting element in a state in which the end section of the electromagnetic shielding element (50) is in direct contact with the outer circumferential surface of the tubular element (81, 82).

Description

TECHNICAL FIELDThe present invention relates to a wire harness.BACKGROUND ARTConventionally, a wire harness for use in a vehicle such as a hybrid vehicle or an electric vehicle has wires for electrically connecting electrical devices such as a high voltage battery and an inverter (see, e.g., JP 2016-54 030 A. In this wire harness, a plurality of wires are collectively sheathed by an outer sheath member such as a corrugated tube or a metal tube to protect the wires.DE 11 2010 004 996 T5 discloses a wire harness having a plurality of individual flat cables each having a flat cross section in the width direction and having a flat conductor and an insulator with which the conductor is sheathed, wherein the individual flat cables are arranged parallel to each other and in the width direction so as to be prevented from overlapping each other. JP 2012-235 666 A discloses a flat corrugated hose for inserting a wire harness, which has a plurality of conductors having a plurality of core wires parallel to each other or a plurality of flat wires having a conductor of rectangular cross section coated with resin. The corrugated tube is provided with circumferentially continuous peaks and valleys of a predetermined length alternating in the axial direction, and the inner surface of the corrugated tube is provided with a convex portion continuous in the axial direction and interposed between adjacent flat wires of the wire harness to be inserted.CN 1 05 374 454 A discloses a heat dissipating cable comprising, from inside to outside, a conductor core, an insulating layer enveloping the conductor core, a heat conducting layer enveloping the insulating layer, a heat dissipating layer enveloping the heat conducting layer, and a sheath layer enveloping the heat dissipating layer, wherein a plurality of annular partitions are arranged uniformly along the longitudinal direction of the heat dissipating layer between the heat dissipating layer and the sheath layer.SUMMARY OF THE INVENTIONOBJECTS TO BE SOLVED BY THE INVENTIONIn recent years, the amounts of current flowing through the wires inserted into the outer sheath member have increased, and the wires therefore generate large amounts of heat. Thus, there is a need to improve heat dissipation of a wire harness including an outer sheath member and wires.The present invention has been made in view of the above-described problems, and it is an object thereof to provide a wire harness with which heat dissipation can be improved.MEANS FOR ACHIEVING THE OBJECTThe object is achieved by a cable harness having the features of claim 1.EFFECT OF THE INVENTIONIn a cable harness, the heat dissipation can be improved by the configuration according to the invention.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a schematic configuration diagram of a wire harness according to a first embodiment. FIG. 2 is a schematic cross-sectional view of the wire harness according to the first embodiment. FIG. 3 is a schematic perspective view of the wire harness according to the first embodiment. FIG. 4 is a schematic cross-sectional view of the wire harness according to the first embodiment. FIG. 5 is a schematic cross-sectional view of a wire harness according to a second embodiment which does not form part of the claimed invention. FIG. 6 is a schematic cross-sectional view of the wire harness according to the second embodiment, which is not part of the claimed invention. FIG. 7 is a schematic cross-sectional view of a wire harness according to a third embodiment. FIG. 8 is a schematic cross-sectional view of the wire harness according to the third embodiment. FIG. 9 is a schematic cross-sectional view of a wire harness according to a modification. FIG. 10 is a schematic cross-sectional view of a wire harness according to a modification. FIG. 11 is a schematic cross-sectional view of a wire harness according to a modification. FIG. 12 is a schematic cross-sectional view of a wire harness according to a modification. FIG. 13 is a schematic cross-sectional view of a wire harness according to a modification. FIGS. 14( a) to 14( c) are schematic cross-sectional views of a wire harness according to a modification. FIG. 15 is a schematic cross-sectional view of a wire harness according to a comparative example. FIG. 16 is a schematic cross-sectional view of the wire harness according to the comparative example. FIG. 17 is a schematic cross-sectional view of a wire harness according to a modification. FIG. 18 is a schematic cross-sectional view of a wire harness according to a modification.EMBODIMENTS OF THE INVENTIONExemplary embodiments are described below with reference to the attached drawings. It should be noted that some of the components in the drawings may be depicted in enlarged or simplified form for purposes of description. The dimensional ratio can also differ from the actual ratio in some parts.First EmbodimentA wire harness 10 shown in FIG. 1 electrically connects two or three or more electric devices (devices, apparatuses) to each other. Specifically, the wire harness 10 electrically connects an inverter 11 disposed in a front part of a vehicle such as a hybrid vehicle or an electric vehicle and a high voltage battery 12 disposed in, for example, a part of the vehicle located behind the inverter 11 to each other. The wire harness 10 is routed under the vehicle floor, for example. The inverter 11 is connected to a wheel drive motor (not shown), which is a power source for driving the vehicle. The inverter 11 generates alternating current from direct current supplied from the high voltage battery 12 and supplies the generated alternating current to the motor. The high voltage battery 12 is, for example, a battery capable of providing a voltage of several hundred volts.The wire harness 10 includes a plurality of (two in this embodiment) wires 20, two connectors C 1 attached to opposite ends of the wires 20, a plurality of outer sheath members 60 into which the plurality of wires 20 are respectively inserted, and a plurality of (two in FIG. 1 ) clamp devices 70. The wires 20 are elongated and extend, for example, in the longitudinal direction of the vehicle. The wires 20 are, for example, high-voltage lines which can carry high voltages and currents. One end of the wires 20 is connected to the inverter 11 via one of the connectors C 1, and the other end of the wires 20 is connected to the high voltage battery 12 via the other connector C 1. The outer sheath elements 60 protect the cores 20 from, for example, objects and water drops flying around. The plurality of outer shell members 60 are fixed to a vehicle body or the like via the clamp devices 70.As shown in FIG. 2, each of the cores 20 includes a core 21 formed by a conductor and an insulating sheath 22 enveloping an outer periphery of the core 21. The wires 20 are, for example, unshielded wires without a shielding structure.The core wires 21 have an elongated shape. The core wires 21 are flexible and can therefore be bent into a shape, for example, which extends along the path along which the wire harness 10 is laid. A transverse cross section of each core wire 21 (that is, a cross section obtained by cutting the core wire 21 in a plane orthogonal to the longitudinal direction of the core wire 21) is, for example, a flat shape. For the purposes of the present disclosure, "flat shape" includes, for example, rectangular, oval, and elliptical shapes. A "rectangular shape" in the sense of the present disclosure has longer sides and shorter sides and does not include square shapes. A "rectangular shape" in the sense of the present disclosure also includes shapes obtained by chamfering one or more corners and shapes obtained by rounding one or more corners.The transverse cross section of the core 21 is rectangular in shape in the present embodiment. The core wires 21 each have the same rectangular transverse cross-sectional shape along their longitudinal length. The core wire 21 has two wide side surfaces 21A including the longer sides of the above-described rectangle and two side surfaces 21B including the shorter sides of the rectangle. The two wide side surfaces 21A and the two side surfaces 21B are flat surfaces.As shown in FIG. 3, the core wires 21 can be bent in two or three dimensions, for example. The core wires 21 are bent into a predetermined shape, for example, which extends along the path along which the wire harness 10 is routed. The core wires 21 each include a straight portion 31 extending in the longitudinal direction of a vehicle, a bent portion 32 continuous to the straight portion 31, an extension portion 33 extending from the bent portion 32 toward a lower side of the vehicle, a bent portion 34 continuous to the extension portion 33, and a straight portion 35 extending in the longitudinal direction of the vehicle from the bent portion 34. The core wires 21 in this embodiment are bent and extend in two directions, in the longitudinal direction and in the vertical direction of the vehicle.The bent portions 32 and 34 are formed by bending the wide side surfaces 21A of the core wire 21 in a height direction (a shorter side direction). The bent portions 32 and 34 are bent over the entire dimension of the wide side surfaces 21A in a width direction (a direction of a longer side and a wider side, respectively) with substantially constant curvature. In other words, in the present embodiment, the bent portions 32 and 34 are portions in which the wide side surfaces 21A are not twisted when formed. However, the bent portions 32 and 34 may be formed by twisting the wide side surfaces 21A.For the core wires 21, for example, a twisted wire obtained by twisting a plurality of bare metal wires together, a columnar wire formed by an inner solid columnar metal rod (single core wire, bus bar, or the like), or an inner hollow tubular wire (a pipe conductor) may be used. The core wires 21 are formed of twisted wires in this embodiment. As a material for the core wires 21, for example, a metal material such as copper or aluminum-based material may be used. The core wires 21 are formed by extrusion, for example. The core wires 21 are formed to have the desired transverse cross-sectional shape (a rectangular shape in this embodiment) by compressing a twisted wire whose transverse cross-section is formed into a round shape by extrusion using a die or the like.For example, as shown in FIG. 2, the insulating sheaths 22 respectively cover, in close contact (by face contact), the entire outer circumferential surface of the core wires 21, and the outer circumferential surfaces of the insulating sheaths 22 have a shape that extends along the outer circumferential surfaces of each of the core wires 21, for example. Each insulation sheath 22 in this embodiment has a rectangular tubular shape whose cross-sectional shape is rectangular at the inner and outer peripheries. The insulating shell 22 is made of an insulating material such as plastic. The insulating sheath 22 may be formed on the core wire 21 by, for example, extrusion molding (extrusion coating).On the outer periphery of each core 20, a protection member 40 is formed, which wraps around the outer periphery of the core 20. The protective member 40 is formed by weaving highly insulating fibers of high shear strength. The protection member 40 is more flexible than the core wire 21, for example.Examples of the reinforced fibers constituting the protective member 40 include para-aramid fibers, polyarylate fibers, PBO fibers (poly(p-phenylene-benzobisoxazole fibers)), PET fibers (polyethylene terephthalate fibers), ultra-high molecular polyethylene fibers, PEI fibers (polyetherimide fibers), glass fibers, and ceramic fibers, and one or more thereof is preferably used according to the properties desired for the protective member 40. In this embodiment, the protection members 40 are each formed of a type of para-aramid fibers.The protective members 40 are tubular and respectively cover the entire outer periphery of the wires 20, and each protective member 40 covers and is in contact with the outer peripheral surface of the insulating sheath 22, for example. The outer circumferential surface of the protective member 40 has a shape that extends along the outer circumferential surface of the insulating sheath 22 (the core wire 21), for example. Each protective member 40 in this embodiment has a rectangular tube shape whose cross-sectional shape is rectangular at the inner and outer peripheries. The protection members 40 are provided over substantially the entire length of the wires 20 in the longitudinal direction thereof, for example.On the outer periphery of each protective member 40, an electromagnetic shielding member 50 is formed, which wraps around the outer periphery of the protective member 40 concerned. For example, it is possible to use a braided member in which a plurality of bare metal wires are braided into a tubular shape or a metal foil as the electromagnetic shielding member 50. The electromagnetic shield members 50 are more flexible than the core wires 21, for example.The electromagnetic shield members 50 are tubular and respectively enclose the entire outer periphery of the wires 20 and the protection members 40 enclosing the wires 20, and each electromagnetic shield member 50 envelopes and is in contact with the outer peripheral surface of the protection member 40, for example. The outer circumferential surface of the electromagnetic shield member 50 has, for example, a shape that extends along the outer circumferential surface of the protective member 40 (the core 21. The electromagnetic shield member 50 in this embodiment has a rectangular tube shape whose cross-sectional shape is rectangular at the inner and outer peripheries. The protection members 50 are provided over substantially the entire length of the wires 20 in the longitudinal direction thereof, for example.Each outer jacket element 60 has an elongate hose shape overall. The wires 20 are disposed in respective inner spaces 60X of the outer sheath members 60. The respective protective element 40 and the respective electromagnetic shielding element 50, which enclose the respective core 20, are accommodated in the respective interior space 60X of the respective outer sheath element 60.As the outer jacket members 60, for example, metal or plastic pipes, corrugated pipes, waterproof rubber jackets, or a combination thereof can be used. As a material for a metal or corrugated tube, for example, a metal material such as an aluminum or a copper-based material may be used. As a material for a plastic or corrugated tube, for example, a conductive plastic material or a plastic material without conductivity can be used.As shown in FIG. 3, the outer shell members 60 in this example are each a corrugated tube having an concertina structure in which annular depressions 61 and annular protrusions 62 are alternately arranged in the longitudinal direction. In this exemplary embodiment, a plastic material without conductivity is used as the material for the outer jacket elements 60. For example, it is possible to use a synthetic resin such as polyolefin, polyamide, polyester or an ABS resin as this synthetic material. The outer sheath members 60 are more flexible than the core wires 21.The outer jacket elements 60 are in this embodiment flat, tubular corrugated tubes. That is, the inner periphery and the outer periphery of the outer shell members 60 have a flat cross-sectional shape, for example. The inner circumferential surfaces of the outer sheath members 60 have a shape, for example, that extends along the outer circumferential surface of the respective cores 20 inserted therein. The annular recesses 61 and the annular protrusions 62 in this embodiment each have a rectangular tube shape whose cross-sectional shape is rectangular at the inner and outer peripheries. The outer peripheral surface of the outer shell member 60 (the annular recesses 61 and the annular protrusions 62) has two wide side surfaces 60A including the longer sides of the above-described rectangle and two side surfaces 60B including the shorter sides of the rectangle. The wide side surfaces 60A face the corresponding wide side surfaces 21A of the core wire 21, and the side surfaces 60B face the corresponding side surfaces 21B of the core wire 21. Here, the internal spaces 60X of the annular protrusions 62 are wider than the internal spaces 60X of the annular recesses 61.The inner space 60X of the outer sheath member 60 (specifically, the inner space 60X of the annular recess 61) is set to a size slightly larger than that of an outer shape of the electromagnetic shield member 50 enclosing the core 20 and the protection member 40, for example. The size difference between the inner space 60X of the annular recess 61 and the outer shape of the electromagnetic shield member 50 is set in consideration of a gap amount, a dimensional tolerance, and the like required for inserting the core 20, the protection member 40, and the electromagnetic shield member 50 into the outer sheath member 60. For example, at least a portion of the outer circumferential surface of the electromagnetic shield member 50 and a portion of the inner circumferential surface of the annular recesses 61 facing each other are in contact with each other. The contact between the outer circumferential surface of the electromagnetic shielding member 50 and the inner circumferential surface of the annular recesses 61 may be a surface contact, a line contact, or a point contact.As shown in FIG. 2, a plurality of (in this embodiment, two) outer shell members 60 are formed separately and independently from each other. The two outer shell members 60 are formed to have the same shape and size, for example. The two outer sheath members 60 are arranged side by side in the longer side direction (the width direction) of the core wires 21 and the outer sheath members 60, for example. That is, the two outer shell members 60 are arranged side by side in a state where their side surfaces 60B face each other. The two outer shell members 60 are arranged side by side in a state where the side surfaces 60B are in contact with each other, for example. Accordingly, the two cores 20 inserted into the two outer sheath members 60, respectively, are arranged such that the side surfaces 21B of the core cores 21 face each other. In the wire harness 10 in this embodiment, a cross section formed by joining (bundling) a plurality of outer sheath members 60 is a rectangular shape as a whole.The two outer shell members 60 are arranged side by side in the transverse direction of the vehicle (a direction orthogonal to a paper plane in FIG. 1 ), for example. That is, the two outer shell members 60 are arranged such that the direction of the longer sides (the width direction) of the outer shell members 60 is in the vehicle width direction. In other words, the two outer shell members 60 are arranged such that the direction of the shorter sides (the height direction) of the outer shell members 60 is in the vertical direction of the vehicle (a direction perpendicular to the plane of paper in FIGS. 1 and 2 ).The clamp devices 70 are provided, for example, to fix the plurality of outer shell elements 60 in cooperation. The clamp devices 70 are attached to an outer circumferential surface of the plurality of outer shell members 60, thereby maintaining a state in which the plurality of outer shell members 60 are bundled together (a joined state).The clamp devices 70 each include a clamp portion 71 fittingly attached to the outside of the plurality of outer shell members 60 and a fixing portion (not shown) fixed to a vehicle. As a material for the clamp devices 70, for example, a plastic or a metal material can be used. For example, it is possible to use a conductive resin material or a resin material having no conductivity as the resin material. For example, it is possible to use a metal material such as an iron or an aluminum-based material as the metal material.The clamp portions 71 in this embodiment are substantially C-shaped. That is, the clamp portions 71 have a discontinuous annular structure. A bracket portion 71 includes two plate portions 72 and 73 facing each other, a connecting portion 74 connecting one end portion of the plate portion 72 and one end portion of the plate portion 73, and latch portions 75 and 76 provided at the other end portions of the plate portions 72 and 73. The bracket portion 71 is a single component in which the plate portions 72 and 73, the connection portion 74, and the latch portions 75 and 76 are formed integrally, for example.The plate portions 72 and 73 each have an inner surface that extends along the wide side surfaces 60A of the two outer shell members 60. Specifically, the plate portions 72 and 73 have an inner surface that extends along the wide side surfaces 60A of the two outer shell members 60 that are arranged side by side in the direction of the longer sides.The connecting portion 74 connects an end portion of the plate portion 72 and an end portion of the plate portion 73, for example, the connecting portion 74 has an inner surface that extends along the side surface 60B of the outer shell member 60.The latch portions 75 and 76 are respectively provided at end portions of the plate portions 72 and 73 that are opposed to the connecting portion 74. That is, the latch portions 75 and 76 are provided at positions opposing the connecting portion 74 toward the longer sides. The latch portion 75 extends from an end portion of the plate portion 72 toward the plate portion 73. the latch portion 76 extends from an end portion of the plate portion 73 toward the plate portion 72. a front end portion of the latch portion 75 is provided at a position spaced from a front end portion of the latch portion 76 and faces the front end portion of the latch portion 76. The clamp portion 71 has an insertion portion 77, into which the plurality of outer shell members 60 can be inserted thanks to the clearance between the latch portions 75 and 76. A mouth width of the insertion portion 77 toward the shorter sides is smaller than the length of the side surface 60B of the outer shell member 60. In addition, the clamp portion 71 is provided with a housing portion 78 in which the plurality of outer shell members 60 are accommodated in the space defined by the inner surfaces of the plate portions 72 and 73, the inner surface of the connection portion 74, and the inner surfaces of the latch portions 75 and 76.An outer surface of the latch portion 75 is an inclined surface 75A inclined as it extends from a root end portion of the latch portion 75 (the end portion connected to the plate portion 72) toward the front end portion thereof (the end portion opposite to the root end portion) toward the connecting portion 74. An outer surface of the latch portion 76 is an inclined surface 76A inclined as it extends from a root end portion of the latch portion 76 (the end portion connected to the plate portion 73) toward the front end portion thereof (the end portion opposite to the root end portion) toward the connecting portion 74. That is, the inclined surfaces 75A and 76A are inclined such that the mouth width of the insertion portion 77 increases as the distance from the housing portion 78 increases.The clamp portion 71 is configured to be deformable between a first arrangement in which the plurality of outer shell members 60 can be inserted into the housing portion 78 from the insertion portion 77, and a second arrangement in which the plurality of outer shell members 60 inserted from the insertion portion 77 can be held in the housing portion 78. That is, the clamp portion 71 is elastically deformable so that the gap between the latch portion 75 and the latch portion 76 (i.e., the mouth width of the insertion portion 77) increases. When the outer sheath member 60 into which the core 20 and the like are inserted is inserted into the insertion portion 77, for example, the clamp portion 71 elastically deforms so that the gap between the front end portion of the latch portion 75 and the front end portion of the latch portion 76 temporarily increases. In addition, when the outer shell member 60 is fitted into the housing portion 78 through the insertion portion 77, the bracket portion 71 elastically springs back so that the annular structure of the bracket portion 71 returns to its original shape, that is, the bracket portion 71 elastically springs back so that the gap between the front end portion of the latch portion 75 and the front end portion of the latch portion 76 decreases. That is, the clamp portion 71 and the two outer shell members 60 form a snap structure in this embodiment by elastic deformation, which prevents the outer shell members 60 from coming off. Note that, in a state where the plurality of outer shell members 60 are accommodated in the housing portion 78, at least a portion of the inner surface of the clamp portion 71 is in contact with the outer circumferential surface of the outer shell member 60.The clamp devices 70 are fixed to a vehicle body via fixing portions (not shown). The plurality of outer shell members 60 are fixed to the vehicle body via the clamp devices 70.Next, the structure of end portions of the protection member 40 and the electromagnetic shielding member 50 will be described below with reference to FIG. 4. Here, the structure of end portions of the protection member 40 and the electromagnetic shielding member 50 on the inverter 11 will be described. Note that the outer shell members 60 are not shown in FIG. 4.One end portion of the wires 20 is inserted into a shield shell 80 of the connector C 1 (see FIG. 1 ) connected to the inverter 11. The shielding sleeve 80 has conductive tubular members 81 into which the respective cores 20 are inserted, for example. The tubular members 81 (the shield sleeve 80) are made of metal. For example, it is possible to use a metal material such as an iron or an aluminum-based material as a material for the tubular members 81. The tubular members 81 may also be subjected to surface treatment such as tin or aluminum plating according to the types of metal components and the use environment.Each tubular member 81 has a rectangular tubular shape whose cross-sectional shape at the inner and outer peripheries is rectangular, for example. Of the wires 20, the protection members 40, and the electromagnetic shielding members 50, only the wires 20 are inserted into the inner portions of the tubular member 81. The end portions of the protective member 40 and the electromagnetic shielding member 50 are fixed to the outer circumferential surface of the tubular member 81. The end portion of the protective member 40 is fitted to the outside of the tubular member 81 and surrounds, for example, the entire periphery of the tubular member 81 The end portion of the electromagnetic shielding member 50 is fitted to the outside of the protective member 40 which is in turn fitted to the outside of the tubular member 81 and surrounds, for example, the entire periphery of the protective member 40 The electromagnetic shielding member 50 is longer than the protective member 40 in total and extends further toward the inverter 11 than the protective member 40 A portion of the electromagnetic shielding member 50 which extends further toward the inverter 11 than the protective member 40 surrounds an end surface of the protective member 40 and is fitted to the outside of the tubular member 81 in direct contact with the outer peripheral surface of the tubular member 81.The end portion of the protective member 40 is connected to the outer circumferential surface of the tubular member 81 via a pinch ring 85 at the outer circumferential side of the electromagnetic shielding member 50 in a state of being held between the tubular member 81 and the electromagnetic shielding member 50. The pinch ring 85 is fitted externally to the tubular member 81 in a state where the end portions of the electromagnetic shielding member 50 and the protection member 40 are held between the outer circumferential surface of the tubular member 81 and the pinch ring 85. In addition, when the pinch ring 85 is pinched, the end portions of the electromagnetic shield member 50 and the protection member 40 are firmly fixed to the outer circumferential surface of the tubular member 81.The end portion of the electromagnetic shielding member 50 is connected to the outer peripheral surface of the tubular member 81 via a crimp ring 86 on the outer peripheral side of the electromagnetic shielding member 50 in a state of enveloping an end surface of the end portion of the protective member 40 and being in direct contact with the outer peripheral surface of the tubular member 81. The pinch ring 86 is fitted externally to the tubular member 81 in a state of holding only the end portion of the electromagnetic shielding member 50 (i.e., not the protective member 40) between the outer circumferential surface of the tubular member 81 and the pinch ring 86. In addition, when the pinch ring 86 is pinched, the end portion of the electromagnetic shielding member 50 is firmly fixed to the outer circumferential surface of the tubular member 81 in a state of being in direct contact with the outer circumferential surface of the tubular member 81. This ensures a stable electrical connection between the electromagnetic shielding member 50 and the tubular member 81 (the shielding sleeve 80).Although the structure of end portions of the protection member 40 and the electromagnetic shielding member 50 on the inverter 11 has been described above, their end portions on the high voltage battery 12 are provided with the same structure.Next, the effects of the present embodiment will be described.(1-1) The plurality of outer sheath members 60 are individually formed, and the cores 20 are inserted into the outer sheath members 60, respectively. Accordingly, the gap (air layer) between the core 20 and the outer sheath member 60 can be made smaller compared to a case where a plurality of cores 20 are collectively surrounded by an outer sheath member. It is possible to reduce an air layer, that is, a heat insulating layer between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60, and thus reduce a heat resistance between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. This prevents heat generated from the core 20 from accumulating in the outer sheath member 60, and allows this heat to be efficiently released from the outer circumferential surface of the outer sheath member 60 to the atmosphere. This makes it possible to efficiently release heat generated from the wire 20 and improve heat dissipation of the wire harness 10. Consequently, it is possible to prevent the temperature of the core 20 from increasing.(1-2) Moreover, it is possible to reduce the width-direction dimension of the outer sheath member 60 to at most half the width-direction dimension of an outer sheath member used for collectively enclosing two cores 20. Thus, it is possible to make the bending radius of the outer sheath member 60 smaller than that of an outer sheath member used for collectively enclosing two cores 20. Accordingly, it is possible to improve the flexibility of the wire harness 10.(1-3) Each core 20 has a flat transverse cross-sectional shape. The core 20 according to this configuration has high rigidity in the width direction and comparatively low rigidity in the height direction. Thus, the core 20 can be bent in the height direction without any problem while increasing its rigidity in the width direction. Since the size of the wire 20 in the height direction can decrease, the height of the wire harness 10 can also decrease.(1-4) Moreover, each outer jacket member 60 has a flat hose shape. Accordingly, it is possible to form the inner circumferential surface of the outer sheath member 60 into a shape that extends along the outer circumferential surface of the core 20, thereby reducing the gap (air layer) between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. Thus, it is possible to improve heat dissipation of the wire harness 10.(1-5) The clamp devices 70 are attached to the outer circumferential surface of the plurality of outer shell members 60 and fix the plurality of outer shell members 60 to the vehicle body. According to this configuration, it is possible to efficiently transfer heat generated from the cores 20 to the vehicle body over a large area at the outer shell members 60 and the clamp devices 70. This makes it possible to efficiently release heat generated from the wires 20 and improve heat dissipation of the wire harness 10.(1-6) The plurality of outer shell members 60 are arranged side by side in the width direction thereof (in the direction of longer sides thereof). Thereby, it becomes possible to increase the area of the outer peripheral surface of the outer peripheral member 60 exposed to the outside, as compared with a case where the plurality of outer peripheral members 60 are arranged side by side in the height direction thereof. Thus, it is possible to improve heat dissipation of the wire harness 10.(1-7) The electromagnetic shield member 50 for enclosing the core 20 is provided between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. It is possible to use an unshielded wire as the wire 20 because the wire 20 may be electromagnetically shielded by the electromagnetic shielding member 50. According to this configuration, it is not necessary to perform a process of peeling an insulating sheath or the like, thus exposing the electromagnetic shield structure to the outside and achieving grounding. Thus, it is possible to improve the workability of electrically connecting (i.e., grounding) the electromagnetic shielding member 50 to the tubular member 81.(1-8) The protection member 40, which is formed of reinforced fibers such as para-aramid fibers and has high impact strength (particularly, shear strength), is provided between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. Thus, it is possible to suppress direct contact between the core wires 21 of the core wires 20 and to prevent the core wires 20 from being electrically connected to each other via a conductor such as a constituent member of the vehicle even if the outer sheath member 60 is damaged by an impact in a vehicle collision. In addition, since the protection member 40 is an insulating member, the core wires 21 of the core wires 20 are prevented from being electrically connected to each other via the protection member 40.(1-9) Incidentally, when the outer periphery of the core 20 is surrounded by two types of tubular members (the protective member 40 and the electromagnetic shielding member 50 in this embodiment), in a state where the tubular members are put on each other, it is difficult to stably fix the tubular member provided on the inner side (the protective member 40 in this embodiment) to the core 20. In addition, when the insulating protection member 40 is disposed on the inner side of the electromagnetic shielding member 50, it is difficult to electrically connect the electromagnetic shielding member 50 and the tubular member 81.In contrast, in this embodiment, a configuration is adopted in which an end portion of the protection member 40 is connected to the outer circumferential surface of the tubular member 81 via the pinch ring 85 in a state of being held between the tubular member 81 and the electromagnetic shielding member 50. An end portion of the electromagnetic shielding member 50 is also formed so as to envelop an end surface of the end portion of the protective member 40, and the end portion of the electromagnetic shielding member 50 is connected to the outer circumferential surface of the tubular member 81 via the pinch ring 86 in a state of being in direct contact with the outer circumferential surface of the tubular member 81. According to this configuration, it is possible to stably fix the protective member 40 to the outer circumferential surface of the tubular member 81 by squeezing the squeezing ring 85, even when the electromagnetic shielding member 50 is put on the outer circumference of the protective member 40. Also, in a state where no insulating protective member 40 is interposed between the tubular member 81 and the electromagnetic shielding member 50, the end portion of the electromagnetic shielding member 50 is fixed at a position on the outer circumferential surface of the tubular member 81 different from the position at which the protective member 40 is fixed. Accordingly, it is possible to ensure that a stable electrical connection exists between the electromagnetic shielding member 50 and the tubular member 81 even when the protective member 40 is disposed between the electromagnetic shielding member 50 and the core 20 (or the tubular member 81).(1-10) The clamp portion 71 of the clamp device 70 is C-shaped, and the insertion portion 77 is formed between the latch portions 75 and 76 facing each other at positions where their front end portions are spaced apart from each other. The outer surfaces of the latch portions 75 and 76 are also formed as inclined surfaces 75A and 76A inclined so that the mouth width of the insertion portion 77 increases as the distance from the housing portion 78 increases. According to this configuration, it is possible to guide the end portions of the plurality of outer shell members 60 into the housing portion 78 along the inclined surfaces 75A and 76A of the latch portions 75 and 76 when the outer shell members 60 are inserted into the housing portion 78 of the bracket portion 71 through the insertion hole 77. Accordingly, it is possible to improve the operation of attaching the clamp device 70 to the plurality of outer shell members 60.Second embodiment which does not form part of the claimed inventionNext, referring to FIGS. 5 and 6, a second embodiment which does not form part of the claimed invention will be described. Note that, primarily, the differences between the first and this embodiments will be described, and elements similar to elements of the first embodiment will be given the same reference numerals, and some or all of the descriptions thereof may be omitted.As shown in FIG. 5, in a wire harness 10A in the present embodiment, the protection member 40 and the electromagnetic shielding member 50 are arranged in the reverse order as compared with the wire harness 10 in FIG. 2. That is, in the wire harness 10A, an electromagnetic shield member 50 is formed to envelop the outer periphery of each core 20, and a protection member 40 is formed to envelop the outer periphery of the electromagnetic shield member 50.Next, the structure of the end portions of the protection member 40 and the electromagnetic shielding member 50 will be described below with reference to FIG. 6. Note that the outer shell members 60 are not shown in FIG. 6.Of the wires 20, the electromagnetic shielding members 50, and the protective members 40, only the wires 20 are inserted into the inner portions of the tubular members 81 of the shielding sleeve 80. The end portions of the protective member 40 and the electromagnetic shielding member 50 are fixed to the outer circumferential surface of the tubular member 81. An end portion of the electromagnetic shielding member 50 is fitted to the outside of the tubular member 81 and surrounds, for example, the entire periphery of the tubular member 81, and the electromagnetic shielding member 50 is fitted to the outside of the tubular member 81 in direct contact with the outer peripheral surface of the tubular member 81. The protection member 40 is fittingly attached to the outside of the electromagnetic shielding member 50, which in turn is fittingly attached to the outside of the tubular member 81, and encloses the entire periphery of the electromagnetic shielding member 50, for example.The end portion of the electromagnetic shielding member 50 is fixed to the outer circumferential surface of the tubular member 81 via a pinch ring 87 on the outer circumferential side of the protective member 40 in a state of being held between the tubular member 81 and the protective member 40. The pinch ring 87 is fitted externally to the tubular member 81 in a state where the end portions of the protective member 40 and the electromagnetic shielding member 50 are held between the outer circumferential surface of the tubular member 81 and the pinch ring 87. Further, when the pinch ring 87 is pinched, the end portions of the protection member 40 and the electromagnetic shielding member 50 are firmly fixed to the outer circumferential surface of the tubular member 81. At this time, the end portion of the electromagnetic shielding member 50 is firmly fixed to the outer circumferential surface of the tubular member 81 in a state of being in direct contact with the outer circumferential surface of the tubular member 81. This ensures a stable electrical connection between the electromagnetic shielding member 50 and the tubular member 81 (the shielding sleeve 80).According to the above-described embodiment, it is possible to effect the following effects in addition to the effects (1-1) to (1-8) and (1-10) of the first embodiment.(2-1) The electromagnetic shielding member 50 and the protection member 40 are arranged in the stated order on the outside of the core 20, and end portions of the electromagnetic shielding member 50 and the protection member 40 are fixed to each other at a position. According to this configuration, the electromagnetic shielding member 50 can be disposed inside the insulating protective member 40, and thus, even in a state where the protective member 40 is laid on the electric shielding member 50, it is possible to bring the electromagnetic shielding member 50 into direct contact with the outer circumferential surface of the tubular member 81. Accordingly, it is possible to ensure a stable electrical connection between the electromagnetic shielding member 50 and the tubular member 81 while reducing the size of the tubular member 81 in the longitudinal direction.Third EmbodimentNext, a third embodiment will be described with reference to FIGS. 7 and 8. Note that, primarily, the differences between the first and this embodiments will be described, and elements similar to elements of the first embodiment will be given the same reference numerals, and some or all of the descriptions thereof may be omitted.As shown in FIG. 7, a wire harness 10B includes a heat conductive member 90 provided between an outer circumferential surface of a core 20 and an inner circumferential surface of an outer sheath member 60. The heat conductive member 90 is made of a material whose thermal conductivity is higher than that of an air layer. As the material for the heat conductive member 90, it is possible to use a material obtained by adding filler having high heat conductivity to an insulating resin such as a polyimide resin, an epoxy resin, or a silicone resin or silicone rubber. As the filler, it is possible to use an inorganic filler such as alumina, titania or magnesia filler. It is possible to use a filler made of metal such as gold (Au), silver (Ag), copper (Cu), aluminum (Al), nickel (Ni), chromium (Cr) or cobalt (Co) in which the surface of metal is covered with an insulating material (e.g., plastic material) as a filler. For example, it is possible to use a sheet-like or gel-like (semi-solid) material as the material for the heat conductive member 90. The heat conductive member 90 in the present embodiment is made of a gel-like material.As shown in FIG. 8, the heat conductive member 90 in this embodiment is provided outside the protection member 40 and the electromagnetic shielding member 50 enclosing the core 20. The heat conductive member 90 is formed, for example, such that a clearance between the outer circumferential surface of the electromagnetic shield member 50 and the inner circumferential surface of the outer shell member 60 is filled with the heat conductive member 90. Specifically, the clearance between the outer circumferential surface of the electromagnetic shielding member 50 and the inner circumferential surface of annular recesses 61 and the clearance between the outer circumferential surface of the electromagnetic shielding member 50 and the inner circumferential surface of annular protrusions 62 are filled with the heat conductive member 90. A space of the inner space 60X of the annular recess 62, which protrudes outward from the inner circumferential surface of an annular recess 61 in the radial direction of the outer shell member 60, is also filled with the heat conductive member 90. In addition, the heat conductive member 90 is formed to penetrate the meshes of the protection member 40 and the electromagnetic shielding member 50, for example. The heat conductive member 90 is formed, for example, such that the meshes of the protection member 40 and the electromagnetic shielding member 50 are filled therewith. In other words, the protection member 40 and the electromagnetic shielding member 50 are embedded in the heat conductive member 90. Accordingly, each gap between the protection member 40 and the electromagnetic shielding member 50 is filled with the heat conductive member 90.Such a heat conductive member 90 can be formed by inserting the core 20 covered with the protection member 40 and the electromagnetic shielding member 50 into the inner space 60X of the outer covering member 60, and then injecting a highly heat conductive gel-like material, for example, so as to fill the space between the outer circumferential surface of the electromagnetic shielding member 50 and the inner circumferential surface of the outer covering member 60 with the conductive material. The heat conductive member 90 can also be formed by forming a gel-like heat conductive member 90 on the outer circumferential surface of the electromagnetic shield member 50 enclosing the wire 20 and the protection member 40, and reducing the diameter of the outer sheath member 60 so that the gel-like heat conductive member 90 is fixed from the outside and thus subjected to plastic deformation by its fixing force. In this case, for example, a corrugated tube having a longitudinal cut may be used as the outer shell member 60.According to the above-described embodiment, it is possible to effect the following effects in addition to the effects (1-1) to (1-10) of the first embodiment.(3-1) The heat conductive member 90, which is made of a material whose thermal conductivity is higher than that of an air layer, is provided between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. According to this configuration, it is possible to reduce an air layer (i.e., a heat insulating layer) between the core 20 and the outer sheath member 60, and thus to reduce a heat resistance between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. This makes it possible to efficiently release heat generated from the wire 20 and improve heat dissipation of the wire harness 10B.(3-2) The heat conductive member 90 is formed such that the clearance between the outer circumferential surface of the electromagnetic shield member 50 and the inner circumferential surface of the outer shell member 60 is filled with the heat conductive member 90. According to this configuration, it is possible to replace the air layer (i.e., the heat insulating layer) between the outer circumferential surface of the electromagnetic shield member 50 and the inner circumferential surface of the outer sheath member 60 with the heat conductive member 90 of high thermal conductivity, and thus to reduce the heat resistance between the outer circumferential surface of the core 20 and the inner circumferential surface of the outer sheath member 60. Accordingly, it is possible to improve heat dissipation of the wire harness 10B.(3-3) The heat conductive member 90 is formed so that the meshes of the protection member 40 and the electromagnetic shielding member 50 are filled therewith. According to this configuration, it is possible to increase the contact area between the heat conductive member 90 and the protection member 40 and the contact area between the protection member 40 and the electromagnetic shielding member 50. Accordingly, it is possible to reduce the thermal resistance between the heat conductive member 90 and the protection member 40 and the thermal resistance between the heat conductive member 90 and the electromagnetic shielding member 50, and thus to improve the heat dissipation of the wire harness 10B.Modifications to the First to Third EmbodimentsThe first to third embodiments described above can be modified as follows. The above-described embodiments and subsequent modifications may be combined to the extent that they do not contradict each other technically.In the above-described embodiments, although all of the plurality of wires 20 are provided with the protection member 40, this is not a limitation.As shown in FIG. 9, for example, only one or some of the wires 20 may be provided with the protection member 40. The wires 20 include a positive wire 20A connected to the positive terminal of the high voltage battery 12 (see FIG. 1 ) and a negative wire 20B connected to the negative terminal of the high voltage battery 12. A configuration may also be employed in which, of these wires 20A and 20B, only the positive wire 20A is provided with the protection member 40, and the negative wire 20B does not have the protection member 40. According to this configuration, it is advantageously possible to suppress short circuits between the positive wire 20A and the negative wire 20B while avoiding an increase in manufacturing cost of the wire harness 10.• There are no particular restrictions on the structure of the clamping devices 70 in the above-described embodiments.• As shown in FIG. 10, a structure may also be employed in which the clamp device 70 has protruding portions 79 for fixing the plurality of outer shell members 60 in a state in which the outer shell members 60 are spaced apart from each other. The protruding portions 79 protrude toward the inner portion of the housing portion 78, for example, from inner surfaces of the plate portions 72 and 73. The protruding portion 79 formed on the plate portion 72 and the protruding portion 79 formed on the plate portion 73 face each other in a state where the protruding portions 79 are spaced apart from each other, for example. The protruding portions 79 extend in the longitudinal direction of the outer shell member 60, for example. portions of the side surfaces 60B of the outer shell members 60 are in contact with the side surfaces of the protruding portions 79. According to this configuration, it is possible to increase the surface area of the outer circumferential surface of the outer shell member 60 exposed to the outside, since the side surfaces 60B of adjacent outer shell members 60 may be spaced apart from each other. Accordingly, it is possible to improve heat dissipation of the wire harness 10.• The protruding portion 79 may be provided only on one of the plate portions 72 and 73 in the clamping device 70 shown in FIG. 10.• As in a clamp device 100 shown in FIG. 11, a structure in which a clamp portion 101 for enclosing the entire circumference of the plurality of outer shell members 60 is provided may also be employed. The clamp portion 101 has a hose shape (a rectangular hose shape in this embodiment) as a whole of such a size that it can be fitted externally to the plurality of combined outer sheath members 60. The clamp portion 101 includes a tab portion 102 and a latch portion 103 that can be locked together. In the clamp device 100, the clamp portion 101 can be opened by releasing the locking between the tab portion 102 and the latch portion 103. The plurality of outer shell members 60 can be fitted therein by opening the clamp portion 101. In the clamp device 100, the plurality of outer jacket elements 60 can also be held therein by closing the clamp portion 101. In the clamp device 100, the clamp portion 101 is locked in the closed state by locking the tab portion 102 to the latch portion 103. Note that, for example, in a state in which the clamp portion 101 is locked, at least a portion of the inner circumferential surface of the clamp portion 101 is in contact with the outer circumferential surface of the outer shell member 60.• In the above-described embodiments, although clamping devices for commonly fixing the plurality of outer shell members 60 to a vehicle body are employed as clamping devices 70, this is not a limitation. For example, clamp devices may also be used to individually fix the plurality of outer shell members 60 to a vehicle body.• The core 20 has a rectangular transverse cross-sectional shape in the above-described embodiments, but this is not a limitation.• As shown in Fig. 12, the transverse cross-sectional shape of the core 21 of the core 20 may be, for example, oval. An "oval shape" in the sense of the present disclosure is a shape formed by two parallel lines of substantially equal length and two semi-circles. The core wire 21 in this configuration has two wide side surfaces 21A and two side surfaces 21B (arc portions) formed in an arc shape between the two wide side surfaces 21A. The two wide side surfaces 21A and the two side surfaces 21B extend longitudinally over the entire length of the core 21, and the insulating sheath 22, the protection member 40, the electromagnetic shielding member 50, and the outer sheath member 60 enclosing the outer periphery of the core 21 have a shape that extends along the outer peripheral shape of the core 21, for example. The inner and outer peripheries of the outer shell member 60 have an oval cross-sectional shape in this configuration. The outer peripheral surface of the outer shell member 60 has two wide side surfaces 60A and two side surfaces 60B (arc portions) formed in an arc shape between the two wide side surfaces 60A.A plurality of (in this embodiment, two) outer sheath members 60 are arranged side by side in the width direction of the core wires 21 and the outer sheath members 60. The two outer shell members 60 are arranged, for example, in a state in which portions of their side surfaces 60B are in contact with each other. According to this configuration, it is possible to increase the area of the outer peripheral surface of the outer jacket member 60 exposed to the outside, thereby improving the heat dissipation of the wire harness 10.• As shown in Fig. 13, the transverse cross-sectional shape of the core 21 of the core 20 may be formed, for example, as a flat shape of a pentagonal or other polygon (in this configuration, a hexagon). The insulating sheath 22, the protection member 40, the electromagnetic shielding member 50, and the outer sheath member 60 enclosing the outer periphery of the core wire 21 have, for example, a shape that extends along the outer peripheral shape of the core wire 21. The cross-sectional shape on the inner and on the outer periphery of the outer jacket element 60 is a flat hexagon in this embodiment. The plurality of outer sheath members 60 are arranged side by side in the width direction of the core wires 21 and the outer sheath members 60.• The plurality of outer shell members 60 are arranged side by side in the width direction thereof such that the width directions are arranged side by side in the vehicle width direction in the above-described embodiments, but this is not a limitation on the arrangement of the plurality of outer shell members 60.• A configuration may also be employed in which, for example, as shown in FIG. 14( a), the plurality of outer shell members 60 are arranged side by side in the width direction thereof such that the width directions are side by side in the vertical direction of the vehicle. In this case, the height direction of the core wires 21 and the outer sheath members 60 is in the vehicle transverse direction.• A configuration may also be employed in which, for example, as shown in FIG. 14( b), the plurality of outer shell members 60 are arranged side by side in the height direction thereof such that the height directions are arranged side by side in the transverse direction of the vehicle. In this case, the width direction of the core wires 21 and the outer sheath members 60 is in the vertical direction of the vehicle. The two outer shell members 60 are also juxtaposed in a state where their wide side surfaces 60A are in contact with each other, for example.• A configuration may also be employed in which, for example, as shown in FIG. 14(C), the plurality of outer shell members 60 are arranged side by side in the height direction thereof such that the height directions are arranged side by side in the vertical direction of the vehicle. In this case, the width direction of the core wires 21 and the outer sheath members 60 is in the vehicle width direction. The two outer shell members 60 are also juxtaposed in a state where their wide side surfaces 60A are in contact with each other, for example.• The arrangement of the heat conductive member 90, the protective member 40, and the electromagnetic shield member 50 in the third embodiment described above can also be changed as needed. For example, the heat conductive member 90 may also be formed to envelop the outer periphery of the insulating sheath 22 of the wire 20, and the protection member 40 and the electromagnetic shielding member 50 may also be formed to envelop the outer periphery of the heat conductive member 90.• The heat conductive member 90 in the above-described third embodiment may also be provided longitudinally over substantially the entire length of the outer shell member 60. The heat-conducting element 90 can also be provided only partially in the longitudinal direction of the core 20.• The heat conductive member 90 in the third embodiment described above may be formed integrally with the inner circumferential surface of the outer shell member 60.Comparative ExampleNext, a comparative example will be described with reference to FIGS. 15 and 16. Note that, primarily, the differences between the first and this embodiments will be described, and elements similar to elements of the first embodiment will be given the same reference numerals, and some or all of the descriptions thereof may be omitted.As shown in FIG. 15, a wire harness 10C includes a plurality of (two in this embodiment) wires 20, an outer sheath member 110 that collectively surrounds the plurality of wires 20, and a clamp device 70. The wires 20 in this embodiment include two high-voltage wires, namely a positive wire 20A connected to the positive terminal of the high-voltage battery 12 (see FIG. 1 ) and a negative wire 20B connected to the negative terminal of the high-voltage battery 12.On the outer periphery of each core 20A, a protective member 40 is formed to envelop the outer periphery of the respective core 20A. On the outer periphery of each protective member 40, an electromagnetic shielding member 50 is formed, which wraps around the outer periphery of the protective member 40 concerned.On the outer periphery of the core 20B, an electromagnetic shielding member 50 is formed, which surrounds the outer periphery of the core 20B. However, the wire 20B is not provided with a protection member 40.Similar to the outer jacket element 60 shown in FIG. 3, the outer jacket element 110 is also a flat, corrugated hose. The plurality of (in this embodiment, two) cores 20A and 20B are disposed in an inner space 110X of the outer sheath member 110. The two cores 20A and 20B are arranged side by side in the width direction (longer side direction) of the core 21 in the inner space 110X. That is, the two cores 20A and 20B are arranged side by side in a state where the side surfaces 21B of their core cores 21 face each other, for example. The two cores 20A and 20B are arranged side by side in a state where the outer circumferential surfaces of the electromagnetic shield members 50 are in contact with each other at portions enveloping the side surfaces 21B of the core cores 21, for example. The two cores 20A and 20B are also arranged such that the height direction (shorter side direction) of the core cores 21 is in the vertical direction of the vehicle.The clamp device 70 is attached to the outer circumferential surface of the outer shell member 110. A clamp portion 71 of the clamp device 70 is fittingly attached to an outer shell member 110 on the outside. The clamp device 70 is fixed to a vehicle body via fixing portions (not shown). The outer jacket element 110 is fixed to the vehicle body via the clamp device 70.Next, the structure of end portions of the protection member 40 and the electromagnetic shielding member 50 will be described below with reference to FIG. 16. Note that the outer sheath member 110 is not shown in FIG. 16.The end portions of the wires 20A and 20B are inserted into a shield shell 80 of a connector C 1 (see FIG. 1 ). The shield shell 80 includes, for example, a tubular member 81 into which the core 20A is inserted and a conductive tubular member 82 into which the core 20B is inserted. The tubular members 81 and 82 (the shield sleeve 80) are made of metal.The tubular members 81 and 82 have a rectangular tubular shape whose cross-sectional shape at the inner and outer peripheries is rectangular, for example. Of the core 20A, the protection member 40, and the electromagnetic shielding member 50, only the core 20A is inserted into the inner portion of the tubular member 81. An end portion of the protective member 40 is connected to the outer circumferential surface of the tubular member 81 via a pinch ring 85 in a state of being held between the tubular member 81 and the electromagnetic shielding member 50. The electromagnetic shielding member 50 is longer than the protective member 40 as a whole and wraps an end surface of the end portion of the protective member 40 An end portion of the electromagnetic shielding member 50 is connected to the outer circumferential surface of the tubular member 81 via a crimp ring 86 in a state of being in direct contact with the outer circumferential surface of the tubular member 81.Of the core 20B and the electromagnetic shielding member 50, only the core 20B is inserted into the inner portion of the tubular member 82. An end portion of the electromagnetic shielding member 50 is fixed to the outer circumferential surface of the tubular member 82. The end portion of the electromagnetic shielding member 50 is fitted to the outside of the tubular member 82, and surrounds, for example, the entire periphery of the tubular member 82, and the end portion of the electromagnetic shielding member 50 is fixed to the outer peripheral surface of the tubular member 82 via a pinch ring 88 on the outer peripheral side of the electromagnetic shielding member 50. When the pinch ring 88 is pinched, the end portion of the electromagnetic shielding member 50 is firmly fixed to the outer circumferential surface of the tubular member 82 in a state of being in direct contact with the outer circumferential surface of the tubular member 82. This ensures a stable electrical connection between the electromagnetic shielding member 50 and the tubular member 82 (the shielding sleeve 80).According to the above-described embodiment, it is possible to effect effects similar to the effects (1-3) to (1-10) of the first embodiment.Modifications of Comparative ExampleThe above-described comparative example can be modified as follows. The above-described comparative example and the modifications below can be combined to the extent that they do not contradict each other technically.• As shown in FIG. 17, the electromagnetic shielding member 50 may also be formed so as to collectively surround the plurality of wires 20. The electromagnetic shield member 50 may be configured to collectively cover the core 20A covered with the protection member 40 and the core 20B, for example.• As shown in Fig. 18, a configuration may also be employed in which each core 20 is provided with a heat conductive member 90. The heat conductive members 90 are formed, for example, to wrap around the outer periphery of the electromagnetic members 50, which in turn wrap around the outside of the wires 20A and 20B. The heat conductive member 90 is formed, for example, such that the meshes of the protection member 40 and the electromagnetic shielding member 50 are filled therewith. A configuration may also be employed in which the heat conductive member 90 is provided so as to collectively envelop the plurality of wires 20.• In the comparative example described above, there is no particular limitation on the arrangement of the cores 20A and 20B in the inner space 110X of the outer sheath member 110. The plurality of cores 20A and 20B may also be arranged side by side in the height direction of the core cores 21 in the internal space 110X, for example.• In the core 20A in the above-described comparative example, the arrangement of the protection member 40 and the electromagnetic shielding member 50 may also be changed as necessary. For example, a configuration may also be adopted in which the electromagnetic shielding member 50 is formed to envelop the outer periphery of the insulating sheath 22 of the core 20A, and the protective member 40 is formed to envelop the outer periphery of the electromagnetic shielding member 50. In this case, for example, the outer circumferential surface of the protection member 40 enclosing the core 20A and the electromagnetic element 50 and the outer circumferential surface of the electromagnetic shielding member 50 enclosing the core 20B are in contact with each other in the inner space 110X of the outer sheath member 110.• The wire 20B in the above-described comparative example may also be provided with the protection member 40.Further EmbodimentThe above-described embodiments can be modified as follows. The above-described embodiments and subsequent modifications may be combined to the extent that they do not contradict each other technically.• Although the pinch rings 85 to 88 are used as connecting members for fixing the protective member 40 and the electromagnetic shielding member 50 to the tubular members 81 and 82 in the above-described embodiments, this is not limitative. Instead of the pinch rings 85 to 88, for example, a metal tape or a cable tie or adhesive tape made of plastic or the like can also be used as the connecting element.• In the above-described embodiments, although one end portion of the protective member 40 is fixed to the outer circumferential surface of the tubular member 81, this is not particularly limited to the fixing position. The end portion of the protection member 40 may also be fixed to the wire 20, for example. In this case, the end portion of the protective member 40 may also be fixed to the core 20 by adhesive tape, for example.• In the above-described embodiments, although a fixing element for fixing the outer casing elements 60 or 110 is used as the clamping device 70, this is not a restriction. The fixing member for fixing the outer shell members 60 and 110 is not limited to a fixing member fixed to a vehicle body, and an adhesive tape, a cable tie, or the like may be used, for example.• In the above-described embodiments, the outer sheath members 60 and 110 may also have a section running in the longitudinal direction.• In the above-described embodiments, the protection member 40 may be omitted.• In the above-described embodiments, the electromagnetic shielding member 50 may be omitted. If the outer sheath members 60 and 110 are made of a conductive material, they may serve as electromagnetic shielding members, for example.• In the above-described embodiments, although unshielded wires are used as the wires 20, the type of the wires 20 is not limited thereto. For example, shielded wires having a shielding structure may also be used as the wires 20.• In the above-described embodiments, although the wire harness 10 has an electromagnetic shielding function, wire harnesses without an electromagnetic shielding function may be used as the wire harness 10.• In the above-described embodiments, although the two wires 20 constitute the wire harness 10, this is not a limitation. The number of wires 20 may be changed according to the specification of a vehicle. The number of wires 20 can also be, for example, one, three or more. For example, low voltage wires connecting a low voltage battery and various low voltage devices (e.g., a lamp and an automobile audio apparatus) may be added as wires constituting the wire harness 10.• The relative arrangement of the inverter 11 and the high voltage battery 12 in the vehicle is not limited to that described in the above embodiments, but may be changed as needed according to the configuration of the vehicle.In the above-described embodiments, although the inverter 11 and the high voltage battery 12 are selected as the electric devices connected via the wires 20, this is not limited. The present disclosure is also applicable to wires connecting the inverter 11 and a wheel drive motor, for example. That is, it can be applied to any components that electrically connect electrical devices installed in a vehicle.• The side surfaces 21B of the core wire 21 are representative examples of side surfaces of the core wire 21 other than the wide side surfaces 21A in the above-described embodiments, and these may be formed as narrow side surfaces of the core wire 21 in some non-limiting examples. The side surfaces 60B of the outer shell member 60 are representative examples of side surfaces of the outer shell member 60 other than the wide side surfaces 60A, and these may be formed as narrow side surfaces of the outer shell member 60 in some non-limiting examples.• The outer peripheral surface of the core wire 21 in the above-described embodiment is formed by a plurality of wide side surfaces 21A and a plurality of side surfaces (other side surfaces) 21B of the core wire 21. Each wide side surface 21A has a first surface and each side surface (other side surface) 21B has a second surface, and the first surface is larger than the second. The wide side surfaces 21A of the core wire 21 are representative examples of the first surface of the core wire 21, and in some non-limiting examples, of the plurality of surface portions forming the outer circumferential surface of the core wire 21, the wide side surfaces 21A of the core wire 21 may be formed as portions having the largest surface area. The side surfaces 21B of the core wire 21 are representative examples of the second surface of the core wire 21, and in some non-limiting examples, of the plurality of surface portions constituting the outer circumferential surface of the core wire 21, the side surfaces 21B of the core wire 21 may be formed as portions having the smallest surface area. The same applies to the outer shell members 60 and 110.The present disclosure also includes the following reaction examples. Not by way of limitation, but to aid in understanding, reference numerals of representative components are given for representative embodiments.• A cable harness (10; 10A) according to a non-limiting implementation example comprises:a plurality of flat wires (20),a plurality of tubular flat outer sheath members (60; 110) each having an interior space (60X) for accommodating one of the plurality of flat wires (20); andat least one clamp device (70; 100) configured to orient and fixedly attach the plurality of tubular flat outer sheath members (60; 110) in which the plurality of flat wires (20) are accommodated, respectively, side by side to a vehicle body,wherein the flat wires (20) each have a flat transverse cross section in a transverse cross-sectional view of the cable harness (10; 10A), and the tubular flat outer sheath elements (60; 110) each have a flat transverse cross section corresponding to that of the corresponding flat wire (20).• In a non-limiting implementation example, the plurality of flat cores (20) each have a flat metal core (21) having an outer circumferential surface and an insulating sheath (22) that is in close contact with the outer circumferential surface of the flat metal core (21), the outer circumferential surface of the flat metal core (21) is formed by a plurality of surface portions including one or more first surface portions (21A) and one or more second surface portions (21B), of the plurality of surface portions of the outer circumferential surface of the flat metal core (21), the one or more first surface portions (21A) each have the largest area, of the plurality of surface portions of the outer circumferential surface of the flat metal core (21), the one or more second surface portions (21B) each have the smallest area, and in a transverse cross-sectional view of the wire harness (10; 10A), at least one or all of the one or more first surface portions (21A) of the metal flat core (21) of a first flat wire, which is one of two adjacent flat wires (20), do not face the outer circumferential surface of the metal flat core (21) of a second flat wire, which is the other of the two adjacent flat wires (20), and face outward in a radial direction of the wire harness (10; 10A).• In a non-limiting implementation example, in a transverse cross-sectional view of the wire harness (10; 10A), one of the one or more second surface portions (21B) of the first flat wire flat metal core (21) faces one of the one or more second flat wire surface portions (21B).• In a non-limiting implementation example, the one or more first surface portions (21A) of the flat metal core (21) is two of the first surface portions (21A) and the one or more second surface portions (21B) of the flat metal core (21) is two of the second surface portions (21B).• In a non-limiting implementation example, in a transverse cross-sectional view of the wire harness (10; 10A), one of the two first surface portions (21A) of the first flat wire metal core (21) faces one of the two first surface portions (21A) of the second flat wire metal core (21), and in a transverse cross-sectional view of the wire harness (10; 10A), the other of the two first surface portions (21A) of the first flat wire metal core (21) does not face the outer circumferential surface of the second flat wire metal core (21) and faces outward in the radial direction of the wire harness (10; 10A).• In a non-limiting implementation example, the two first surface portions (21A) of the flat metal wire core (21) are flat surfaces, and the two second surface portions (21B) of the flat metal wire core (21) are flat or curved surfaces.• In a non-limiting implementation example, the flat cores (20) each have a plurality of stacked intermediate layers (40, 50 and 90) in close contact with the entire perimeter of the insulating sheath (22).• In a non-limiting example of implementation, the plurality of intermediate layers (40, 50, 90) of the flat core (20) comprise a layer (90) comprising a thermally conductive element, the thermal conductivity of which is greater than that of air.It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the technical spirit of the present invention. For example, some of the components described in the embodiments (or one or more aspects thereof) may be omitted, or some of the components may be combined. The scope of the present disclosure should be determined from the appended claims, as well as the full scope of equivalents to which the claims are entitled.LIST OF REFERENCE CHARACTERS10, 10A to 10C Wire harness 20, 20A, 20B Wire 21 Wire core 22 Insulating sheath 40 Protective member 50 Electromagnetic shielding member 60 Outer sheath member 61 Annular recess 62 Annular protrusion 70, 100 Clamp device 79 Protruding portion 81, 82 Tubular member 85 Crimp ring (first connection member) 86 Crimp ring (second connection member) 87 Crimp ring (connection member) 90 Heat conductive member 110 Outer sheath member

Claims

A wire harness (10) comprising: a plurality of wires (20) each including a wire core (21) having a flat shape in a transverse cross section and an insulating sheath (22) enveloping an outer periphery of the wire core (21); a plurality of outer sheath members (60) into which the plurality of wires (20) are respectively inserted, the plurality of outer sheath members (60) being independent of each other and each having a flat tube shape; a clamp device (70, 100) attached to an outer peripheral surface of the outer sheath members (60) and fixing the outer sheath members (60) to a vehicle body; a tubular protection member (40) enclosing an outer periphery of the insulating sheath (22) and formed of reinforced fibers; a tubular electromagnetic shielding member (50) enclosing an outer periphery of the protection member (40); and a conductive tubular member (81, 82) having an outer circumferential surface to which an end portion of the electromagnetic shielding member (50) is connected, wherein an end portion of the protective member (40) is connected to the outer circumferential surface of the tubular member (81, 82) by a first connecting member in a state in which the end portion of the protective member (40) is held between the tubular member (81, 82) and the electromagnetic shielding member (50), and an end portion of the electromagnetic shielding member (50) covers an end surface of the end portion of the protective member (40) and is connected to the outer circumferential surface of the tubular member (81, 82) by a second connecting member in a state in which the end portion of the electromagnetic shielding member (50) is in direct contact with the outer circumferential surface of the tubular member (81, 82).The wire harness (10) according to claim 1, wherein a heat conductive member (90) that encloses an outer periphery of the wire (20) and is made of a material whose thermal conductivity is higher than that of an air layer is provided between an outer peripheral surface of the wire (20) and an inner peripheral surface of the outer sheath member (60).The wire harness (10) according to claim 1 or 2, wherein the electromagnetic shielding member (50) is a braided member in which a plurality of bare metal wires are braided, and the heat conductive member (90) is made of a gel-like material and is formed such that meshes of the braided member are filled with the heat conductive member (90).The wire harness (10) according to claim 2 or 3, wherein the outer jacket member (60) is a corrugated tube in which annular protrusions and annular recesses are alternately arranged along a longitudinal direction, and the heat conductive member (90) is formed such that a space between the outer circumferential surface of the core (20) and the inner circumferential surface of the outer jacket member (60) is filled with the heat conductive member (90).The wire harness (10) according to any one of claims 1 to 4, wherein an inner surface of the clamp device (70, 100) is provided with a protruding portion separating two adjacent ones of the outer shell members (60) from each other.The wire harness (10) according to any one of claims 1 to 5, wherein the plurality of outer sheath members (60) are arranged side by side in a width direction of the outer sheath members (60).The wire harness (10) according to any one of claims 1 to 6, wherein the core wire (21) has an oval shape in transverse cross section, and the plurality of outer sheath members (60) have an oval shape in transverse cross section, and the plurality of outer sheath members (60) are arranged side by side such that arc portions of the oval shapes are in contact with each other.

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