Wire harness

Abstract

The invention provides a wire harness capable of absorbing length deviation of a ground wire. A wire harness (10) according to one aspect of the present invention is provided with an electric wire, a tubular braided member (22) surrounding the outer periphery of the electric wire, and a ground terminal (50). An end portion of the braided member (22) has a ground wire (30) extending away from the electric wire without surrounding an outer periphery of the electric wire. The ground terminal (50) is attached to the end of the ground wire (30). A ground terminal (50) is provided with: a metal base member (60) having a column portion (61) around which a ground wire (30) is wound, and a flange portion (62) integrally formed with the column portion (61); and a metal cover member (70) having an insertion hole (70X) into which the column section (61) is inserted. The cover member (70) is fixed to the base member (60) in a state in which the ground wire (30) wound around the column portion (61) is sandwiched between the cover member (70) and the flange portion (62).

Description

Technical Field

[0001] The present invention relates to a wiring harness. Background Art

[0002] Conventionally, as a wiring harness arranged inside a vehicle such as a hybrid vehicle or an electric vehicle, a wiring harness having a shielded wire is known (for example, see Patent Document 1). The shielded wire has a braided member surrounding the outer periphery of the coated wire and a sheath surrounding the outer periphery of the braided member. The braided member has an electromagnetic shielding function that suppresses electromagnetic waves (electromagnetic noise) from being radiated from the coated wire to the outside of the shielded wire.

[0003] In this wiring harness, the terminal end of the sheath is removed at the end of the length direction of the shielded wire to expose the braided member, and the exposed braided member is separated from the coated wire. In this way, the ground wire is formed by the braided member separated from the coated wire. The end of the ground wire is crimped and connected to a metal ground terminal. In addition, the ground terminal is grounded to a grounding part such as a box or a vehicle body panel provided in a peripheral device, so that a stable electromagnetic shielding function is exerted by using the shielded wire. Prior art literature Patent Literature

[0004] Patent Document 1: Japanese Patent Application Publication No. 2006-156299 Summary of the invention Problems to be solved by the invention

[0005] However, in a wiring harness having the above-described grounding structure, the length of the grounding wire may vary during manufacturing, etc. Therefore, it is desired to develop a wiring harness that can absorb the length variation of the grounding wire.

[0006] An object of the present invention is to provide a wiring harness capable of absorbing length deviation of a ground wire. Solutions to Solve Problems

[0007] The wiring harness of the present invention comprises electric wires, a tubular braided component that surrounds the outer circumference of the electric wires, and a grounding terminal, wherein the end of the braided component has a grounding wire, and the grounding wire does not surround the outer circumference of the electric wires and extends away from the electric wires, and the grounding terminal is assembled at the end of the grounding wire, and the grounding terminal comprises: a metal base component having a column portion and a flange portion formed integrally with the column portion, and the grounding wire is wound around the column portion; and a metal cover component having an insertion hole for inserting into the column portion, and the cover component is fixed to the base component in a state of sandwiching the grounding wire wound around the column portion between the cover component and the flange portion. Effects of the Invention

[0008] According to the wire harness of the present invention, there is an effect of being able to absorb the length deviation of the ground wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram showing a wire harness according to an embodiment. Figure 2 This is a schematic side view showing a wire harness according to an embodiment. Figure 3 This is a schematic perspective view showing a braided member according to one embodiment. Figure 4 This is a schematic perspective view showing a wire harness according to an embodiment. Figure 5 This is a schematic exploded perspective view showing a wire harness according to an embodiment. Figure 6 This is a schematic cross-sectional view showing a wire harness according to an embodiment. Figure 7 This is a schematic cross-sectional view showing a wire harness according to an embodiment. Figure 8 This is a schematic plan view showing a wire harness according to an embodiment. Fig. 9 It is a schematic plan view showing a wire harness according to a modified example. Fig.10 It is a schematic perspective view showing a wire harness according to a modified example. Fig.11 It is a schematic cross-sectional view showing a wire harness according to a modified example. DETAILED DESCRIPTION

[0010] [Description of Embodiments of the Invention] First, embodiments of the present invention will be described by way of examples. [1] The wiring harness of the present invention comprises electric wires, a tubular braided member surrounding the outer circumference of the electric wires, and a grounding terminal, wherein the end of the braided member has a grounding wire, the grounding wire does not surround the outer circumference of the electric wires and extends away from the electric wires, the grounding terminal is assembled at the end of the grounding wire, and the grounding terminal comprises: a metal base member having a column portion and a flange portion formed integrally with the column portion, the grounding wire is wound around the column portion; and a metal cover member having an insertion hole for inserting into the column portion, the cover member being fixed to the base member in a state where the grounding wire wound around the column portion is sandwiched between the cover member and the flange portion.

[0011] According to this structure, the grounding wire is wound around the column portion of the base member, and the wound grounding wire is sandwiched between the metal cover member and the metal flange portion. Thus, the grounding wire wound around the column portion and the grounding terminal can be electrically connected to each other. However, when manufacturing a wiring harness, etc., the length of the grounding wire sometimes deviates. For example, sometimes the excess length of the grounding wire deviates from the reference size. Even in such a case, the excess length of the grounding wire can be easily absorbed by changing the length of the grounding wire wound around the column portion. Thus, even if the length of the grounding wire deviates, the deviation can be easily absorbed, so the deviation in the length from the base end of the grounding wire to the grounding terminal can be appropriately suppressed. In other words, the length from the base end of the grounding wire to the grounding terminal can be easily set as the reference size.

[0012] [2] In the above [1], the grounding wire may be wound around the outer circumference of the column portion for a period longer than one circle, and the grounding wire may have an overlapping portion where a first circle portion and a second circle portion wound around the outer circumference of the column portion overlap.

[0013] According to this structure, the grounding wire is wound around the outer periphery of the column portion in a manner having an overlapping portion in which a portion of the first week wound around the outer periphery of the column portion and a portion of the second week overlap. In the overlapping portion, the grounding wire of the first week overlaps the grounding wire of the second week, so these grounding wires, that is, the braided members, contact each other at multiple points. Since friction is generated at these multiple contact portions, the grounding wire is not easy to untie from the state of being wound around the column portion. Thus, the state in which the grounding wire is wound around the column portion can be properly maintained, and the state in which the grounding wire is clamped and fixed between the base member and the cover member can be properly maintained. As a result, the fixing force of the grounding terminal relative to the grounding wire can be improved. Therefore, the state in which the grounding wire and the grounding terminal are electrically connected to each other can be properly maintained, and the reliability of the electrical connection between the grounding wire and the grounding terminal can be improved.

[0014] [3] In the above [1], the ground wire may be wound around the outer circumference of the column part for less than one turn, and the ground wire may be wound around the outer circumference of the column part in a U-shape.

[0015] According to this configuration, the ground wire is wound in a U-shape around the outer periphery of the column portion. The braided member and the ground terminal can be electrically connected to each other by the ground wire wound in the U-shape.

[0016] [4] In any one of the above [1] to [3], the braided component may have a structure formed by braiding a plurality of metal wires, each of the plurality of metal wires having a wire body and a coating covering the outer periphery of the wire body, and the surface roughness of the outer periphery of the coating is greater than the surface roughness of the outer periphery of the wire body.

[0017] According to this structure, a plating film is formed on the surface of each metal wire constituting the braided component, and the surface roughness of the outer peripheral surface of each metal wire is formed to be relatively large. As a result, the friction coefficient of the outer peripheral surface of each metal wire can be increased. Therefore, the friction between the metal wires and the friction between the metal wires and the grounding terminal (for example, the column portion) can be increased. As a result, the grounding wire is not easy to be untied from the state of being wound around the column portion. As a result, the state in which the grounding wire is wound around the column portion can be properly maintained, and the state in which the grounding wire is clamped and fixed between the base member and the cover member can be properly maintained. As a result, the fixing force of the grounding terminal relative to the grounding wire can be improved. Therefore, the state in which the grounding wire and the grounding terminal are electrically connected to each other can be properly maintained, and the electrical connection reliability of the grounding wire and the grounding terminal can be improved.

[0018] [5] In any one of the above [1] to [4], it may further include a fixing member that fixes the cover member to the base member. According to this structure, the cover member can be properly fixed to the base member by the fixing member, thereby properly maintaining the state where the ground wire is sandwiched between the base member and the cover member, and properly maintaining the state where the ground wire and the ground terminal are electrically connected to each other.

[0019] [6] In the above [5], the column portion may be a cylindrical portion having a through hole that penetrates the column portion in the axial direction, and the fixing member may be a bolt that is inserted into the through hole and fixes the ground terminal to the grounding portion.

[0020] According to this structure, the bolt, which is a fixing member for fixing the cover member to the base member, also functions as a fixing member for fixing the ground terminal to the grounding portion. That is, the bolt has both the function of fixing the cover member to the base member and the function of fixing the ground terminal to the grounding portion. Therefore, compared with the case where the fixing member for fixing the cover member to the base member and the fixing member for fixing the ground terminal to the grounding portion are composed of different parts, the number of parts of the wire harness can be reduced.

[0021] [7] In any one of the above [1] to [4], the cover member may be integrated with the base member. According to this structure, the cover member is integrated with the base member in a state where the grounding wire wound around the column portion is sandwiched between the cover member and the flange portion. Therefore, it is possible to prevent the cover member from accidentally falling off from the base member. Thus, it is possible to properly maintain the state where the grounding wire is sandwiched between the base member and the cover member, and it is possible to properly maintain the state where the grounding wire and the grounding terminal are electrically connected to each other.

[0022] [8] In any one of the above [1] to [7], the outer peripheral surface of the flange portion may have a cutout portion for positioning the ground terminal relative to a mounting object. According to this structure, a notch is provided on the outer peripheral surface of the flange. Therefore, for example, by assembling the ground terminal to the assembly object in such a manner that the protrusion provided on the assembly object side of the ground terminal and the notch engage with each other, the ground terminal can be easily positioned relative to the assembly object. As a result, the workability when fixing the ground terminal to the assembly object can be improved.

[0023] [9] In any one of the above [1] to [8], the electric wire may be one of a plurality of electric wires, the braided member surrounds the outer periphery of the plurality of electric wires, and the ground wire does not surround the outer periphery of the plurality of electric wires and extends away from the plurality of electric wires.

[0024] According to this structure, the outer peripheries of the plurality of electric wires are collectively surrounded by the braided member. By electrically connecting the ground wire included in such a braided member to the ground terminal, the braided member can function as an electromagnetic shielding member for the plurality of electric wires.

[0025] [Details of Embodiments of the Invention] Specific examples of the wiring harness of the present invention are described below with reference to the accompanying drawings. In each of the drawings, for the sake of convenience, a part of the structure is sometimes enlarged or simplified. In addition, the size ratios of the various parts are sometimes different in each of the drawings. "Parallel" or "orthogonal" in this specification includes not only the case of being strictly parallel or orthogonal, but also the case of being roughly parallel or orthogonal within the range of the effect of the present embodiment. In addition, the present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0026] Figure 1 The wiring harness 10 shown is mounted on a vehicle V such as a hybrid vehicle or an electric vehicle. The wiring harness 10 electrically connects two or more vehicle-mounted devices to each other. The vehicle-mounted device is an electrical device mounted on the vehicle V. The wiring harness 10 electrically connects, for example, a high-voltage battery M1 disposed at the rear of the vehicle V and an inverter M2 disposed in front of the vehicle V relative to the high-voltage battery M1. The high-voltage battery M1 is, for example, a battery that can supply a voltage of several hundred volts. The inverter M2 is connected to an electric motor (not shown) for driving wheels that serves as a power source for the vehicle. The inverter M2 generates AC power from the DC power of the high-voltage battery M1 and supplies the AC power to the electric motor. The wiring harness 10 is formed in an elongated shape, for example, extending in the front-rear direction of the vehicle V.

[0027] The wire harness 10 includes, for example, a wire component 20, connectors C1 and C2 mounted on both ends of the wire component 20, and an outer casing 40 surrounding the outer periphery of the wire component 20. A first end of the wire component 20 in the longitudinal direction is connected to the high-voltage battery M1 via the connector C1, and a second end of the wire component 20 in the longitudinal direction is connected to the inverter M2 via the connector C2.

[0028] The outer packaging member 40 is in the shape of an elongated cylinder as a whole. For example, the outer packaging member 40 accommodates the middle portion of the length direction of the electric wire member 20 inside. In other words, the electric wire member 20 penetrates inside the outer packaging member 40. For example, the outer packaging member 40 has the function of protecting the electric wire member 20 accommodated inside from flying objects or water drops. As the outer packaging member 40, for example, a metal or resin tube, a resin protective member, a bellows made of resin or the like and having flexibility, or a rubber waterproof cover, or a combination of these can be used.

[0029] (Structure of the Electric Wire Member 20) like Figure 2 As shown, the wire component 20 has one or more wires 21 and a braided component 22 surrounding the outer periphery of the wire 21. The wire component 20 of this embodiment has two wires 21 and a braided component 22 surrounding the two wires 21. Here, in this specification, the so-called "surrounding the A member and the B member together" means, for example, not providing a wall between the A member and the B member, but surrounding the A member and the B member collectively by a cylindrical member.

[0030] Each electric wire 21 is, for example, a covered electric wire having a core wire and an insulating sheath portion which is electrically insulating and surrounds the core wire, and the core wire is conductive. Each electric wire 21 is, for example, a high-voltage electric wire that can handle high voltage and high current. Each electric wire 21 can be, for example, a shielded electric wire having an electromagnetic shielding structure or a non-shielded electric wire not having an electromagnetic shielding structure. Each electric wire 21 in this embodiment is a non-shielded electric wire.

[0031] The ends of the wires 21 in the longitudinal direction are exposed from, for example, the exterior member 40. The ends of the wires 21 in the longitudinal direction are exposed from, for example, the braid member 22. The ends of the wires 21 in the longitudinal direction are attached with, for example, connectors C1.

[0032] The braided member 22 is, for example, formed into a cylindrical shape that surrounds the outer periphery of the plurality of electric wires 21 all around the circumference. The braided member 22 is, for example, flexible. As the braided member 22, for example, a braided wire braided from a plurality of metal wires or a braided wire braided from a combination of metal wires and resin wires can be used. The braided member 22 of this embodiment is a braided wire braided from a plurality of metal wires.

[0033] like Figure 3As shown, the braided member 22 has, for example, a plurality of wire bundles 23. The braided member 22 is formed, for example, by braiding a plurality of wire bundles 23 into a cylindrical shape. The braided member 22 is formed, for example, by braiding a plurality of wire bundles 23 in a plain weave, that is, by braiding the warp and the weft in a manner that alternately sinks and floats. The braided member 22 forms a mesh using two wire bundles 23 that become warps and two wire bundles 23 that become wefts. In addition, the braiding method of the wire bundles 23 is not particularly limited, and for example, the wire bundles 23 may be woven in a swastika weave or a twill weave.

[0034] Each wire bundle 23 has a plurality of wires (in Figure 3 In other words, in the braided member 22, a plurality of metal wires 24 are grouped as one group (picked), that is, one wire bundle 23.

[0035] Each metal wire 24 has, for example, a wire body 25 and a plating film 26 coating the outer periphery of the wire body 25. As the material of the wire body 25, for example, a copper-based, aluminum-based metal material can be used. As the material of the plating film 26, for example, a tin-based metal material can be used. The cross-sectional shape of the metal wire 24 cut by a plane orthogonal to the length direction of each metal wire 24, that is, the cross-sectional shape of each metal wire 24 can be set to any shape. The cross-sectional shape of each metal wire 24 can be formed into, for example, a circular, semicircular, polygonal, square or flat shape. The cross-sectional shape of each metal wire 24 of the present embodiment is formed into a circular shape.

[0036] The wire body 25 is provided at the center of the metal wire 24. The plating film 26 covers the outer peripheral surface of the wire body 25 over the entire circumference. The surface roughness of the outer peripheral surface of the plating film 26 is greater than the surface roughness of the outer peripheral surface of the wire body 25, for example.

[0037] like Figure 2 As shown, the first end portion of the braided member 22 in the axial direction is exposed from the outer member 40. The first end portion of the braided member 22 in the axial direction has a ground wire 30, and the ground wire 30 does not surround the outer periphery of the electric wire 21, and extends away from the electric wire 21. The ground wire 30 is a part of the braided member 22. The ground wire 30 extends, for example, in a direction intersecting the longitudinal direction of the electric wire 21 (downward in the figure). The end of the ground wire 30 is electrically connected to a metal ground terminal 50. The ground terminal 50 is, for example, connected to a metal ground terminal 50 provided on the vehicle body panel 100 (see Figure 4) is electrically connected to the grounding portion G1. The end of the grounding wire 30 is grounded to the grounding portion G1, for example, via the grounding terminal 50. Here, the length from the base end of the grounding wire 30 to the grounding terminal 50 is set as the length L1. The length L1 also corresponds to the length from the base end of the grounding wire 30 to the grounding portion G1. The end of the grounding wire 30 is the end farthest from the electric wire 21 among the ends in the axial direction of the grounding wire 30. The base end of the grounding wire 30 is the end farthest from the grounding terminal 50 among the ends in the axial direction of the grounding wire 30.

[0038] Although not shown in the figure, the second end portion of the braided member 22, which is disposed on the opposite side to the first end portion, is connected to the braided member 22 through, for example, a connector C2 (see Figure 1 ) is grounded and connected to a grounding portion provided on a vehicle body panel, etc. In addition, the second end of the braided component 22 can also be grounded and connected to a grounding portion through a grounding wire 30 and a grounding terminal 50, similarly to the first end of the braided component 22.

[0039] (Structure of Ground Terminal 50) like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in FIG. 1 , the ground terminal 50 includes a metal base member 60 and a metal cover member 70. The base member 60 is, for example, a separate component from the cover member 70. As materials for the base member 60 and the cover member 70, for example, metal materials such as copper, copper alloy, aluminum, aluminum alloy, and stainless steel can be used. The material of the base member 60 and the material of the cover member 70 may be the same metal material or different metal materials.

[0040] like Figure 4 and Figure 6 As shown, the ground terminal 50 is fixed to the vehicle body panel 100, for example. Here, the vehicle body panel 100 is provided with a fixing hole 101 for fixing the ground terminal 50 to the vehicle body panel 100 by a bolt B1, for example. The fixing hole 101 functions as a grounding portion G1. The vehicle body panel 100 is made of metal. As the material of the vehicle body panel 100, for example, a copper-based, aluminum-based, iron-based, or other metal material can be used.

[0041] (Structure of Base Member 60) The base member 60 has a column portion 61 and a flange portion 62, and the ground wire 30 of the braided member 22 is wound around the column portion 61. Figure 6 As shown, the base member 60 is a single-piece component in which a column portion 61 and a flange portion 62 are continuously and integrally formed.

[0042] The column portion 61 is formed, for example, in a manner protruding from one surface (here, the upper surface) of the flange portion 62 in the first direction D1 (here, upward). The column portion 61 is, for example, a cylindrical portion having a hollow structure. That is, the column portion 61 is a cylindrical portion having a through hole 61X that penetrates the column portion 61 in the axial direction (here, the first direction D1). The through hole 61X is formed, for example, in a manner that the bolt B1 can penetrate. The through hole 61X is provided, for example, in a manner overlapping with the fixing hole 101 of the vehicle body panel 100 when viewed from above in the first direction D1. Here, the first direction D1 is a direction extending parallel to the axial direction (height direction) of the column portion 61.

[0043] The cross-sectional shape of the column portion 61 along its outer peripheral surface can be set to any shape. The cross-sectional shape of the through hole 61X along its inner peripheral surface can be set to any shape. Figure 5 As shown, the cross-sectional shape of the column portion 61 along its outer circumference of the present embodiment is formed into a circle. The cross-sectional shape of the through hole 61X along its inner circumference of the present embodiment is formed into a circle. In other words, the planar shape of the column portion 61 is formed into a circle, and the planar shape of the through hole 61X is formed into a circle. That is, the column portion 61 of the present embodiment is formed into a cylindrical shape. Here, in this specification, "top view" refers to viewing the object from the first direction D1, and "planar shape" refers to the shape of the object viewed from the first direction D1.

[0044] like Figure 6 As shown, the flange portion 62 is formed, for example, in a manner protruding from the outer peripheral surface of the column portion 61 toward the radial outer side of the column portion 61. The flange portion 62 is provided, for example, at an end portion in the axial direction of the column portion 61. Figure 5 As shown, the flange portion 62 is continuously formed over the entire circumference of the outer peripheral surface of the column portion 61, for example. The plane shape of the flange portion 62 is formed larger than the plane shape of the column portion 61. The plane shape of the flange portion 62 can be set to any shape. The plane shape of the flange portion 62 can be the same shape as the plane shape of the column portion 61, or it can be a shape different from the plane shape of the column portion 61. The plane shape of the flange portion 62 of the present embodiment is formed into a circle that is the same as the plane shape of the column portion 61. The flange portion 62 of the present embodiment is formed into a disc shape as a whole. Here, in this specification, "disc shape" refers to a shape whose plane shape is circular and has a predetermined thickness. In addition, in "disc shape", the size of the thickness relative to the diameter is not considered. In addition, shapes in which recesses or protrusions are partially formed are also included in "disc shape".

[0045] like Figure 8As shown, the grounding wire 30 of the braided member 22 is wound around the outer periphery of the column portion 61 of the base member 60. The grounding wire 30 is wound around the outer periphery of the column portion 61 along the outer periphery of the column portion 61. The grounding wire 30 is, for example, wound around the outer periphery of the column portion 61 over a range longer than one circle. The grounding wire 30 is, for example, wound in a spiral shape around the outer periphery of the column portion 61. The grounding wire 30 is, for example, wound around the outer periphery of the column portion 61 in such a manner that the second circle portion 32 overlaps the first circle portion 31. In other words, the grounding wire 30 has an overlapping portion 33 where the first circle portion 31 and the second circle portion 32 wound around the outer periphery of the column portion 61 overlap. As shown in FIG. Figure 6 As shown, at the overlapping portion 33, the first circumference portion 31 and the second circumference portion 32 overlap in the first direction D1. Thus, at the overlapping portion 33, the ground wire 30 overlaps twice or more in the first direction D1. Figure 8 As shown, the overlapping portion 33 is provided only on a part of the circumference of the column 61. The length of the overlapping portion 33 extending along the circumference of the column 61 is formed to be less than 1 / 2 of the circumference of the column 61. In addition, the grounding wire 30 wound around the outer periphery of the column 61 is provided on the flange portion 62. Figure 8 In FIG. 1 , the cover member 70 is depicted in perspective.

[0046] (Structure of Cover Member 70) like Figure 4 and Figure 5 As shown, the cover member 70 has an insertion hole 70X for inserting the column portion 61. The insertion hole 70X penetrates the cover member 70, for example, in the thickness direction (here, the first direction D1). The insertion hole 70X is, for example, provided at the center of the plane of the cover member 70. As long as the column portion 61 can be inserted, the planar shape of the insertion hole 70X can be set to any shape. The planar shape of the insertion hole 70X can be the same shape as the planar shape of the column portion 61, or a shape different from the planar shape of the column portion 61. The planar shape of the insertion hole 70X of the present embodiment is formed into a circle that is the same as the planar shape of the column portion 61. The planar shape of the insertion hole 70X is formed to be one circle larger than the planar shape of the column portion 61.

[0047] The planar shape of the cover member 70 is formed to be smaller than the planar shape of the flange portion 62, for example. The planar shape of the cover member 70 can be set to any shape. The planar shape of the cover member 70 can be the same shape as the planar shape of the insertion hole 70X, or a shape different from the planar shape of the insertion hole 70X. The planar shape of the cover member 70 of the present embodiment is formed into a circular shape that is the same as the planar shape of the insertion hole 70X. The cover member 70 of the present embodiment is formed into a disk shape having the insertion hole 70X.

[0048] like Figure 4As shown in FIG. 1 , the cover member 70 is fixed to the base member 60 in a state where the column portion 61 is inserted into the insertion hole 70X. The cover member 70 is fixed to the base member 60 so as to cover the ground wire 30 wound around the column portion 61 .

[0049] like Figure 5 , Figure 6 and Figure 7 As shown, the cover member 70 is fixed to the base member 60 in a state where the ground wire 30 wound around the column 61 is sandwiched between the cover member 70 and the flange portion 62. The cover member 70 is fixed to the base member 60, for example, in a manner that presses the ground wire 30 wound around the column 61 toward the flange portion 62. In this state, the ground wire 30 wound around the column 61 is compressed, for example, in the first direction D1 between the cover member 70 and the flange portion 62. For example, the overlapping portion 33 is compressed in the first direction D1 between the flange portion 62 and the cover member 70 in a manner that the ground wire 30 as the second circumference portion 32 is sunken into the ground wire 30 as the first circumference portion 31.

[0050] like Figure 6 and Figure 7 As shown, the cover member 70 is fixed to the base member 60 by, for example, screwing a bolt B1 inserted through the through hole 61X of the column portion 61 and the fixing hole 101 of the vehicle body panel 100 into a nut not shown. Thus, the cover member 70 is fixed to the fixing hole 101 of the vehicle body panel 100 by being pressed by the head of the bolt B1, and is fixed to the base member 60 in a state where the ground wire 30 is pressed toward the flange portion 62.

[0051] As described above, the ground terminal 50 is fixed to the fixing hole 101 of the vehicle body panel 100 by, for example, the bolt B1 and the nut. In this state, the braided member 22 is electrically connected to the ground terminal 50 through the ground wire 30 wound around the column portion 61. Furthermore, the ground wire 30 of the braided member 22 is electrically connected to the grounding portion G1 of the vehicle body panel 100 through the ground terminal 50 and the bolt B1.

[0052] Next, the effects of this embodiment will be described. (1) The wire harness 10 includes an electric wire 21, a tubular braided member 22 surrounding the outer periphery of the electric wire 21, and a ground terminal 50. The end of the braided member 22 includes a ground wire 30, which does not surround the outer periphery of the electric wire 21 and extends away from the electric wire 21. The ground terminal 50 is mounted on the end of the ground wire 30. The ground terminal 50 includes: a metal base member 60 including a column 61 and a flange 62 formed integrally with the column 61, and the ground wire 30 is wound around the column 61; and a metal cover member 70 including an insertion hole 70X inserted into the column 61. The cover member 70 is fixed to the base member 60 in a state where the ground wire 30 wound around the column 61 is sandwiched between the cover member 70 and the flange 62.

[0053] According to this structure, the ground wire 30 of the braided member 22 is wound around the column 61 of the base member 60, and the wound ground wire 30 is sandwiched between the metal cover member 70 and the metal flange 62. Thus, the ground wire 30 wound around the column 61 and the ground terminal 50 can be electrically connected to each other. However, when manufacturing the wiring harness 10, the length of the ground wire 30 sometimes deviates. For example, sometimes the excess length of the ground wire 30 relative to the reference size deviates. Even in such a case, by changing the length of the ground wire 30 wound around the column 61, the excess length of the ground wire 30 can be easily absorbed. Thus, even if the length of the ground wire 30 deviates, the deviation can be easily absorbed, so the length L1 from the base end of the ground wire 30 to the ground terminal 50 can be appropriately suppressed. In other words, the length L1 from the base end of the ground wire 30 to the ground terminal 50 can be easily set as the reference size. Thus, the electromagnetic shielding performance of the braided member 22 can be appropriately suppressed.

[0054] (2) However, in the conventional wire harness, since the braided member separated from the electric wires is crimped to the ground terminal, when the size of the braided member is changed, the size of the barrel portion of the ground terminal also needs to be changed.

[0055] In contrast, in the wire harness 10 of the present embodiment, the ground wire 30 of the braided member 22 is sandwiched between the flange portion 62 of the base member 60 and the cover member 70. Therefore, even when the size of the braided member 22 is changed, the sizes of the base member 60 and the cover member 70 are not changed, and the ground wire 30 of the braided member 22 can be appropriately sandwiched between the base member 60 and the cover member 70. Thus, a single ground terminal 50 can be shared for braided members 22 of various sizes. Therefore, it is not necessary to manufacture a new ground terminal 50 in accordance with the size change of the braided member 22, and thus the manufacturing cost of the wire harness 10 can be reduced.

[0056] (3) The grounding wire 30 is wound around the outer periphery of the column portion 61 in a manner having an overlapping portion 33 in which a first-circle portion 31 and a second-circle portion 32 wound around the outer periphery of the column portion 61 overlap. In the overlapping portion 33, the grounding wire 30 of the first circle and the grounding wire 30 of the second circle overlap, so these grounding wires 30, that is, the braided members 22 contact each other at multiple points. Since friction is generated at these multiple contact portions, the grounding wire 30 is not easily unwound from the state of being wound around the column portion 61. Thus, the state in which the grounding wire 30 is wound around the column portion 61 can be properly maintained, and the state in which the grounding wire 30 is clamped and fixed between the base member 60 and the cover member 70 can be properly maintained. As a result, the fixing force of the grounding terminal 50 relative to the grounding wire 30 can be improved. Therefore, the state in which the grounding wire 30 and the grounding terminal 50 are electrically connected to each other can be properly maintained, and the electrical connection reliability of the grounding wire 30 and the grounding terminal 50 can be improved.

[0057] (4) A plating film 26 is formed on the surface of each metal wire 24 constituting the braided member 22, and the surface roughness of the outer peripheral surface of each metal wire 24 is formed to be relatively large. As a result, the friction coefficient of the outer peripheral surface of each metal wire 24 can be increased. Therefore, the friction force between the metal wires 24 and the friction force between the metal wires 24 and the grounding terminal 50 (column 61, flange 62 and cover member 70) can be increased. As a result, the grounding wire 30 is not easy to be untied from the state of being wound around the column 61. As a result, the state of the grounding wire 30 being wound around the column 61 can be properly maintained, and the state of the grounding wire 30 being clamped and fixed between the base member 60 and the cover member 70 can be properly maintained. As a result, the fixing force of the grounding terminal 50 relative to the grounding wire 30 can be improved.

[0058] (5) The cover member 70 can be properly fixed to the base member 60 by the bolts B1 as the fixing members. Thus, the ground wire 30 can be properly maintained in the state of being sandwiched between the base member 60 and the cover member 70, and the ground wire 30 and the ground terminal 50 can be properly maintained in the state of being electrically connected to each other.

[0059] (6) The bolt B1 also functions as a fixing member for fixing the ground terminal 50 to the fixing hole 101 as the grounding location G1. That is, the bolt B1 has both the function of fixing the cover member 70 to the base member 60 and the function of fixing the ground terminal 50 to the grounding location G1. Therefore, compared with the case where the fixing member for fixing the cover member 70 to the base member 60 and the fixing member for fixing the ground terminal 50 to the grounding location G1 are composed of different parts, the number of parts of the wire harness 10 can be reduced.

[0060] (7) Furthermore, by fixing the bolt B1 to the fixing hole 101, the ground wire 30 can be clamped and fixed, that is, the cover member 70 can be fixed to the base member 60 and the ground terminal 50 can be electrically connected to the ground portion G1 at the same time. This can reduce the number of working steps compared to the case where the fixing work of the cover member 70 to the base member 60 and the electrical connection work of the ground terminal 50 and the ground portion G1 are performed separately.

[0061] (8) However, in the conventional wiring harness, a special device, i.e., a crimping machine or a mold, is required for crimping the braided member and the grounding terminal. In contrast, in the wiring harness 10 of the present embodiment, by fixing the bolt B1 to the fixing hole 101, the cover member 70 can be fixed to the base member 60 in a state where the grounding wire 30 is sandwiched between the base member 60 and the cover member 70. Therefore, it is not necessary to prepare a special device for connecting the grounding terminal 50 to the grounding wire 30. Therefore, the manufacturing cost of the wiring harness 10 can be reduced.

[0062] (9) In addition, when the braided member is crimped to the ground terminal using a crimping machine, the braided member separated from the electric wire becomes longer because a work margin is required for the safety cover portion during crimping. In contrast, in the wire harness 10 of the present embodiment, since the ground terminal 50 and the ground wire 30 can be connected by the bolt B1, it is not necessary to provide a work margin during the connection operation. Therefore, in the wire harness 10, the length L1 from the base end of the ground wire 30 to the ground terminal 50 can be easily reduced.

[0063] (Other embodiments) The above-mentioned embodiment can be implemented as the following modifications. The above-mentioned embodiment and the following modifications can be implemented in combination with each other within the scope of no technical contradiction.

[0064] In the above embodiment, the length of the ground wire 30 wound around the outer periphery of the column portion 61 is not particularly limited. For example, the ground wire 30 may be wound around the outer periphery of the column portion 61 twice or more.

[0065] In the above embodiment, the ground wire 30 is wound around the outer circumference of the column portion 61 so as to have the overlapping portion 33 , but the present invention is not limited thereto. For example, Fig. 9 As shown, the ground wire 30 may be wound around the outer circumference of the column portion 61 for less than one turn. For example, the ground wire 30 may be wound around the outer circumference of the column portion 61 in a U-shape.

[0066] The structure of the ground terminal 50 in the above embodiment can be changed as appropriate. For example, as long as the cover member 70 can be fixed to the base member 60 with the ground wire 30 wound around the column 61 sandwiched between the base member 60 and the cover member 70, the structure of the ground terminal 50 can be changed as appropriate.

[0067] For example, Fig.10 As shown in the figure, a notch portion 63 for positioning the ground terminal 50 relative to the assembly object may be provided on the outer peripheral surface of the flange portion 62. Three notches 63 are provided on the outer peripheral surface of the flange portion 62 of this modification. Each notch portion 63 is formed, for example, in a manner of being recessed from the outer peripheral surface of the flange portion 62 toward the column portion 61. Here, in this modification, a protrusion 102 is provided on the vehicle body panel 100 as the assembly object. At this time, when the ground terminal 50 is fixed to the vehicle body panel 100, the ground terminal 50 can be easily positioned relative to the vehicle body panel 100 by arranging the ground terminal 50 on the vehicle body panel 100 in a manner that the notch portion 63 and the protrusion 102 are engaged with each other. As a result, the workability when the ground terminal 50 is fixed to the vehicle body panel 100 can be improved.

[0068] In the above embodiment, the column 61 is formed into a hollow structure having the through hole 61X, but the present invention is not limited thereto. For example, the column 61 may be formed into a solid structure. In this case, the through hole 61X is omitted. In this case, the through hole into which the bolt B1 for fixing the ground terminal 50 to the fixing hole 101 is inserted is provided separately from the column 61.

[0069] In the above-mentioned embodiment, the cross-sectional shape of the column portion 61 along its outer peripheral surface is formed into a circular shape, but it is not limited to this. For example, the cross-sectional shape of the column portion 61 along its outer peripheral surface may be formed into a polygonal shape. For example, the column portion 61 may be formed into a prism shape or a square tube shape. In this case, the outer peripheral surface of the column portion 61 is preferably formed into a shape in which the edge portion is chamfered or a shape in which the edge portion is rounded. Since the edge portion is provided on the outer peripheral surface of the column portion 61 in this modification, the grounding wire 30 is easily hooked on the edge portion, and therefore the grounding wire 30 is not easily untied from the state of being wound around the column portion 61. As a result, the state in which the grounding wire 30 is wound around the column portion 61 can be appropriately maintained, and the fixing force of the grounding terminal 50 relative to the grounding wire 30 can be improved.

[0070] In the above embodiment, the fixing member for fixing the cover member 70 to the base member 60 is embodied as the bolt B1, but the present invention is not limited thereto. For example, the fixing member for fixing the cover member 70 to the base member 60 may be embodied as a rivet.

[0071] In the above embodiment, the cover member 70 is fixed to the base member 60 using the bolts B1 as the fixing members, but the present invention is not limited thereto. For example, Fig.11 As shown, the cover member 70 and the base member 60 may be integrated. For example, the cover member 70 and the base member 60 may be integrated by using a stamping process. For example, the cover member 70 is arranged on the base member 60 in a manner that covers the ground wire 30 wound around the outer periphery of the column portion 61, and a stamping process is performed on a plurality of locations on the upper surface of the cover member 70, so that the cover member 70 and the base member 60 can be integrated. In the portion where the stamping process is performed, a recessed portion 71 is formed on the upper surface of the cover member 70, and a protruding portion 72 protruding downward from the lower surface of the cover member 70 is formed. Furthermore, the protruding portion 72 is sunken into the flange portion 62 of the base member 60, so that the cover member 70 and the base member 60 are integrated.

[0072] In the above embodiment, the grounding terminal 50 is mounted on the grounding wire 30 provided at the end of the braided member 22, which is a general shielding member that surrounds the plurality of electric wires 21, but the present invention is not limited thereto. For example, the grounding terminal 50 may be mounted on the grounding wire provided at the end of the braided member (i.e., each core shielding member) of the shielded electric wire. In addition, the shielded electric wire is composed of, for example, the electric wire 21, the braided member as each core shielding member that surrounds the outer periphery of the electric wire 21, and the sheath that surrounds the outer periphery of the braided member.

[0073] The exterior member 40 in the above-mentioned embodiment may be omitted. In the above embodiment, the wire member 20 is composed of two wires 21 and the braided member 22, but the present invention is not limited thereto. The number of wires 21 constituting the wire member 20 can be changed according to the specifications of the vehicle V. For example, the number of wires 21 constituting the wire member 20 may be one or three or more.

[0074] In the above embodiment, the grounding portion G1 is embodied as the fixing hole 101 of the vehicle body panel 100, but the present invention is not limited thereto. For example, a stud bolt provided on the vehicle body panel 100 may be embodied as the grounding portion G1. In this case, for example, the stud bolt is inserted into the through hole 61X of the ground terminal 50. In addition, the stud bolt may function as a fixing member for fixing the cover member 70 to the base member 60.

[0075] In the above embodiment, the plurality of vehicle-mounted devices electrically connected to the wire harness 10 are embodied as the high-voltage battery M1 and the inverter M2 , but the present invention is not limited thereto. The plurality of vehicle-mounted devices electrically connected to the wire harness 10 are not particularly limited as long as they are electrical devices mounted on the vehicle V.

[0076] The arrangement relationship between the high-voltage battery M1 and the inverter M2 in the vehicle V is not limited to the above-described embodiment, and may be appropriately changed according to the structure of the vehicle V. In the above embodiment, the planar shape of the insertion hole 70X of the cover member 70 may be consistent with the planar shape of the column portion 61 of the base member 60, and the inner diameter of the insertion hole 70X of the cover member 70 may be consistent with the outer diameter of the column portion 61 of the base member 60. The column portion 61 of the base member 60 may also be fixed to the insertion hole 70X of the cover member 70 by friction. Figure 5 As shown, the insertion hole 70X of the cover member 70 may have a smooth inner peripheral surface, and the column portion 61 of the base member 60 may have a smooth outer peripheral surface.

[0077] In the illustrated embodiment, the ground wire 30 is sometimes referred to as a conductive braid. The flange portion 62 and the cover member 70 of the illustrated embodiment are sometimes referred to as a pair of flat plate disks configured to sandwich a conductive braid that can serve as the ground wire 30. The ground terminal 50 of the illustrated embodiment is sometimes referred to as, for example, a bobbin-shaped ground terminal or a conductive bobbin configured to wrap a conductive braid around or sandwich a conductive braid between flat plate disks.

[0078] ·like Figures 4 to 7 , 10, and 11, the height of the column 61, the thickness of the ground terminal 50, or the shortest distance between the flange 62 and the cover member 70 may be smaller than the radial extension of the flange 62 or the cover member 70.

[0079] ·like Figures 4 to 7 , 10 , and 11 , the diameter or maximum diameter of the flange portion 62 of the ground terminal 50 may be larger than the diameter or maximum diameter of the cover member 70 . The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present invention is indicated by the claims rather than the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the claims. Description of Reference Numerals

[0080] 10. Wiring Harness 20 Wire components 21 Wire 22 Braided components 23 Wire bundle 24 Metal wire 25 Wire body 26 Coating 30 Ground wire 31 Week 1 Part 32 Week 2 Part 33 Overlap 40 Exterior components 50 Ground terminal 60 Base component 61 Column 61X Through hole 62 flange 63 incision 70 Cover member 70X Insertion hole 71 recess 72 Protrusion 100 Body Panels 101 Fixing hole 102 Protrusion B 1 Bolt C1, C2 Connectors D1 Direction 1 G1 Grounding point M1 High Voltage Battery M2 Inverter V Vehicle

Claims

1. A wire harness comprising electric wires, a tubular braided member surrounding the outer circumference of the electric wires, and a ground terminal, The end of the braided member has a grounding wire, the grounding wire does not surround the outer periphery of the electric wire, and extends away from the electric wire. The grounding terminal is mounted on the end of the grounding wire. The ground terminal has: a metal base member having a column portion and a flange portion formed integrally with the column portion, the ground wire being wound around the column portion; and The metal cover member has an insertion hole into which the column portion is inserted, The cover member is fixed to the base member in a state where the ground wire wound around the column portion is sandwiched between the cover member and the flange portion.

2. The wire harness according to claim 1, wherein: The ground wire is wound around the outer circumference of the column for a range longer than one circle. The ground wire has an overlapping portion where a first-circle portion and a second-circle portion wound around the outer circumference of the column overlap.

3. The wire harness according to claim 1, wherein: The ground wire is wound around the outer circumference of the column for less than one circle. The ground wire is wound in a U shape around the outer circumference of the column portion.

4. The wire harness according to any one of claims 1 to 3, wherein: The braided component has a structure formed by braiding a plurality of metal wires. Each of the plurality of metal wires includes a wire body and a plating film covering an outer circumference of the wire body. The surface roughness of the outer peripheral surface of the coating film is greater than the surface roughness of the outer peripheral surface of the wire body.

5. The wire harness according to any one of claims 1 to 4, wherein: A fixing member is also provided, the fixing member fixing the cover member to the base member.

6. The wire harness according to claim 5, wherein: The column portion is a cylindrical portion having a through hole penetrating the column portion in the axial direction. The fixing member is a bolt that is inserted into the through hole and fixes the ground terminal to the grounding portion.

7. The wire harness according to any one of claims 1 to 4, wherein: The cover member is integrated with the base member.

8. The wire harness according to any one of claims 1 to 7, wherein: The outer peripheral surface of the flange portion has a notch portion for positioning the ground terminal relative to a mounting object.

9. The wire harness according to any one of claims 1 to 8, wherein: The wire is one of a plurality of wires, The braided member surrounds the outer circumference of the plurality of wires. The ground wire does not surround the outer circumference of the plurality of electric wires, and extends away from the plurality of electric wires.

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