wiring harness
By adopting a combination design of dual electromagnetic wave absorbing components and limiting components in the wiring harness, the problem of damage to the wires caused by vibration of large-scale electromagnetic wave absorbing components is solved, and the stability of the wires and the miniaturization of the wiring harness are achieved.
Patent Information
- Application Number
- CN202180016093.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-02-25
- Filing Date
- 2021-02-17
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2041-02-17
AI Technical Summary
In conventional wire harnesses, as the size of electromagnetic wave absorbing members increases, the wires are easily damaged when vibrated, and the vibration of the members causes the wires to shake.
A dual electromagnetic wave absorbing component design is adopted, which is set on each wire respectively, and their relative movement is restricted by a limiting component to ensure the fixation and overlapping setting of the electromagnetic wave absorbing component and the wire, thereby reducing the size and mass of the component.
It effectively suppresses the damage of wires, reduces the impact of the vibration of electromagnetic wave absorbing components on wires, avoids the wires shaking and wearing in the through-holes, and reduces the overall size of the wiring harness.
Smart Images

Figure CN115136745B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a wire harness. Background Art
[0002] Conventionally, wiring harnesses installed in hybrid vehicles, electric vehicles, and other vehicles are known that include: wires that electrically connect multiple electrical devices; and electromagnetic wave absorbing members that absorb electromagnetic waves (electromagnetic noise) radiated from the wires. In such wiring harnesses, the electromagnetic wave absorbing members are provided around the outer periphery of the wires by inserting the multiple wires through through-holes of the electromagnetic wave absorbing member, which is composed of a ferrite core or the like (see, for example, Patent Document 1).
[0003] Prior art literature
[0004] Patent Literature
[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2014-130886 Summary of the Invention
[0006] Problems to be solved by the invention
[0007] However, in such wiring harnesses, the larger the electromagnetic wave to be reduced, the larger the electromagnetic wave absorbing member. When multiple wires are passed through such a large electromagnetic wave absorbing member, the electromagnetic wave absorbing member vibrates due to, for example, vibrations associated with vehicle travel. This vibration of the electromagnetic wave absorbing member causes the wires to shake, potentially damaging the wires.
[0008] An object of the present disclosure is to provide a wiring harness capable of reducing damage to electric wires.
[0009] Solutions to Problems
[0010] The wiring harness disclosed herein comprises: a first electric wire component including a first electric wire; a first annular electromagnetic wave absorbing component having a first through-hole through which the first electric wire component passes; a first limiting member for limiting the relative movement of the first electromagnetic wave absorbing component relative to the first electric wire component in the longitudinal direction of the first electric wire component; a second electric wire component including a second electric wire; a second annular electromagnetic wave absorbing component having a second through-hole through which the second electric wire component passes; and a second limiting member for limiting the relative movement of the second electromagnetic wave absorbing component relative to the second electric wire component in the longitudinal direction of the second electric wire component, the first electromagnetic wave absorbing component being arranged so as to overlap with a portion of the second electromagnetic wave absorbing component when viewed from above in the direction of the first central axis extending from the central axis of the first through-hole.
[0011] Effects of the Invention
[0012] According to the wiring harness of the present disclosure, damage to electric wires can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic structural diagram showing a wire harness according to one embodiment.
[0014] Figure 2 This is a schematic cross-sectional view showing a wire harness according to an embodiment.
[0015] Figure 3 is a schematic cross-sectional view showing a wire harness according to an embodiment ( Figure 2 3-3 line cross-section diagram in the figure).
[0016] Figure 4 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0017] Figure 5 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0018] Figure 6 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0019] Figure 7 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0020] Figure 8 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0021] Figure 9 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0022] Figure 10 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0023] Figure 11 It is a schematic perspective view showing a wire harness according to a modified example.
[0024] Figure 12 is a schematic cross-sectional view showing a wire harness of a modified example ( Figure 10 12-12 line cross-section diagram).
[0025] Figure 13 1 is a schematic cross-sectional view showing a wire harness according to a modified example.
[0026] Figure 14 1 is a schematic structural diagram showing a wire harness according to a modified example. DETAILED DESCRIPTION
[0027] [Description of Embodiments of the Present Disclosure]
[0028] First, embodiments of the present disclosure will be described below.
[0029] [1] The wiring harness disclosed herein comprises: a first electric wire member including a first electric wire; a first annular electromagnetic wave absorbing member having a first through-hole through which the first electric wire member passes; a first limiting member for limiting the relative movement of the first electromagnetic wave absorbing member relative to the first electric wire member in the longitudinal direction of the first electric wire member; a second electric wire member including a second electric wire; a second annular electromagnetic wave absorbing member having a second through-hole through which the second electric wire member passes; and a second limiting member for limiting the relative movement of the second electromagnetic wave absorbing member relative to the second electric wire member in the longitudinal direction of the second electric wire member, the first electromagnetic wave absorbing member being arranged so as to overlap with a portion of the second electromagnetic wave absorbing member when viewed from above in the direction of the first central axis extending from the central axis of the first through-hole.
[0030] According to this configuration, the first electromagnetic wave absorbing member is provided on the first electric wire member, and the second electromagnetic wave absorbing member is provided on the second electric wire member. That is, the first and second electromagnetic wave absorbing members are provided separately for the first and second electric wire members, respectively. This reduces the electromagnetic waves to be reduced in the first and second electromagnetic wave absorbing members, compared to a case where a single electromagnetic wave absorbing member is provided for multiple electric wire members. Consequently, the first and second electromagnetic wave absorbing members can each be miniaturized and their respective masses reduced, compared to a case where a single electromagnetic wave absorbing member is provided for multiple electric wire members. This reduces the loads applied to the first and second electric wire members from the first and second electromagnetic wave absorbing members when the first and second electromagnetic wave absorbing members vibrate due to vehicle travel, for example. Consequently, damage to the first and second electric wire members due to vibration of the first and second electromagnetic wave absorbing members can be suppressed. Furthermore, damage to the first electric wire and the second electric wire can be suppressed.
[0031] Furthermore, since the first electromagnetic wave absorbing member is provided so as to overlap with a portion of the second electromagnetic wave absorbing member in a plan view seen from the first central axis direction, it is possible to suppress an increase in the size of the wire harness.
[0032] Here, the "ring" in this specification includes a circular ring with a circular outer edge, a ring with an elliptical or oblong outer edge, a polygonal ring with a polygonal outer edge, and a ring with a rounded polygonal outer edge, and refers to a ring whose outer edge is composed of any closed shape connected by straight lines or curves. A "ring" has a shape with a through hole when viewed from above, including a ring whose outer edge shape and the inner circumference of the through hole are the same shape, or a ring whose outer edge shape and the inner circumference of the through hole are different shapes. A "ring" includes a ring with a predetermined length extending in the direction of the central axis extending along the central axis, and the central axis passes through the center of the through hole regardless of the size of its length. In addition, the "ring" in this specification can be regarded as a ring as a whole, including a ring with a partial notch such as a C-shaped ring.
[0033] [2] Preferably, the inner peripheral surface of the first through hole is opposite to the outer peripheral surface of the first electric wire member, and when the first electromagnetic wave absorbing member is viewed along the central axis of the first through hole, the inner peripheral surface of the first through hole has a first portion and a second portion arranged at a position point-symmetrical to the first portion relative to the central axis of the first through hole, and the first limiting member fixes the first electromagnetic wave absorbing member to the first electric wire member in a manner such that the first electric wire member contacts the first portion and is isolated from the second portion.
[0034] According to this configuration, the first electromagnetic wave absorbing member and the first wire member are fixed (integrated) in a state where the first wire member contacts the first portion within the first through-hole of the first electromagnetic wave absorbing member and is arranged biased toward the first portion. Therefore, even if the first electromagnetic wave absorbing member vibrates due to the movement of a vehicle, etc., the first wire member can be prevented from shaking within the first through-hole due to the vibration of the first electromagnetic wave absorbing member. For example, compared to a case where the first electromagnetic wave absorbing portion and the first wire member are fixed in a state where the first wire member does not contact the inner circumferential surface of the first through-hole, the first wire member can be prevented from moving within the first through-hole due to the vibration of the first electromagnetic wave absorbing member. As a result, wear of the first wire member due to contact with the inner circumferential surface of the first through-hole can be suppressed, and damage to the first wire member due to the vibration of the first electromagnetic wave absorbing member can be appropriately suppressed.
[0035] As used herein, "opposing" means that two surfaces or components are directly opposite each other, and includes not only completely opposite each other but also partially opposite each other. Furthermore, "opposing" as used herein includes both situations where a different component is sandwiched between the two components and situations where nothing is sandwiched between the two components.
[0036] [3] Preferably, the first portion is a portion that is arranged at a position farther from the second electric wire member than the second portion in a direction intersecting the first central axis direction.
[0037] With this configuration, the first wire member is offset within the first through-hole, away from the second wire member. This allows the first and second electromagnetic wave absorbing members to overlap significantly when viewed from above in the direction of the first central axis. As a result, the wiring harness can be appropriately prevented from becoming larger.
[0038] [4] Preferably, the inner peripheral surface of the second through hole is opposite to the outer peripheral surface of the second electric wire member, and when the second electromagnetic wave absorbing member is viewed along the central axis of the second through hole, the inner peripheral surface of the second through hole has a third portion and a fourth portion arranged at a position point-symmetrical with respect to the central axis of the second through hole and the third portion, the third portion being a portion arranged at a position farther from the first electric wire member than the fourth portion in a direction intersecting the direction of the second central axis extending from the central axis of the second through hole, and the second limiting member fixes the second electromagnetic wave absorbing member to the second electric wire member in such a manner that the second electric wire member contacts the third portion and is isolated from the fourth portion.
[0039] According to this configuration, the second electromagnetic wave absorbing member and the second wire member are fixed (integrated) in a state where the second wire member contacts the third portion within the second through-hole of the second electromagnetic wave absorbing member and is arranged biased toward the third portion. Therefore, even if the second electromagnetic wave absorbing member vibrates due to the movement of the vehicle, the second wire member can be prevented from shaking within the second through-hole due to the vibration of the second electromagnetic wave absorbing member. For example, compared to a case where the second electromagnetic wave absorbing portion and the second wire member are fixed in a state where the second wire member does not contact the inner circumferential surface of the second through-hole, the second wire member can be prevented from moving within the second through-hole due to the vibration of the second electromagnetic wave absorbing member. As a result, wear of the second wire member due to contact with the inner circumferential surface of the second through-hole can be suppressed, and damage to the second wire member due to the vibration of the second electromagnetic wave absorbing member can be appropriately suppressed.
[0040] Furthermore, the second wire member is positioned within the second through-hole, offset from the first wire member. This allows the first and second electromagnetic wave absorbing members to overlap significantly when viewed from above in the direction of the first central axis. Consequently, the wiring harness can be prevented from becoming larger.
[0041] [5] The inner peripheral surface of the first through hole is opposite to the outer peripheral surface of the first electric wire member. When the first electromagnetic wave absorbing member is viewed along the central axis of the first through hole, the inner peripheral surface of the first through hole has a first portion and a second portion arranged at a position that is point-symmetrical with the first portion relative to the central axis of the first through hole. The second portion is a portion that is arranged closer to the second electric wire member than the first portion in a direction intersecting the direction of the first central axis. The first limiting member fixes the first electromagnetic wave absorbing member to the first electric wire member in a manner that the first electric wire member contacts the second portion and is isolated from the first portion.
[0042] According to this configuration, the first electromagnetic wave absorbing member and the first wire member are fixed (integrated) in a state where the first wire member contacts the second portion within the first through-hole of the first electromagnetic wave absorbing member and is arranged biased toward the second portion. Therefore, even if the first electromagnetic wave absorbing member vibrates due to the movement of the vehicle, the first wire member can be prevented from shaking within the first through-hole due to the vibration of the first electromagnetic wave absorbing member. For example, compared to a case where the first electromagnetic wave absorbing portion and the first wire member are fixed in a state where the first wire member does not contact the inner circumferential surface of the first through-hole, the first wire member can be prevented from moving within the first through-hole due to the vibration of the first electromagnetic wave absorbing member. As a result, wear of the first wire member due to contact with the inner circumferential surface of the first through-hole can be suppressed, and damage to the first wire member due to the vibration of the first electromagnetic wave absorbing member can be appropriately suppressed.
[0043] Furthermore, within the first through-hole, the first wire member is arranged offset toward the side closer to the second wire member. This allows the first and second wire members to be positioned close together. Consequently, the size of the wiring harness can be reduced, for example, in the portion where the first and second electromagnetic wave absorbing members are not provided.
[0044] [6] Preferably, the inner circumferential surface of the second through hole is opposite to the outer circumferential surface of the second electric wire member, and when the second electromagnetic wave absorbing member is viewed along the central axis of the second through hole, the inner circumferential surface of the second through hole has a third portion and a fourth portion arranged at a position point-symmetrical with respect to the central axis of the second through hole and the third portion, the fourth portion being a portion arranged at a position closer to the first electric wire member than the third portion in a direction intersecting the direction of the second central axis extending from the central axis of the second through hole, and the second limiting member fixes the second electromagnetic wave absorbing member to the second electric wire member in such a manner that the second electric wire member contacts the fourth portion and is isolated from the third portion.
[0045] According to this configuration, the second electromagnetic wave absorbing member and the second wire member are fixed (integrated) in a state where the second wire member contacts the fourth portion within the second through-hole of the second electromagnetic wave absorbing member and is arranged biased toward the fourth portion. Therefore, even if the second electromagnetic wave absorbing member vibrates due to the movement of the vehicle, etc., the second wire member can be prevented from shaking within the second through-hole due to the vibration of the second electromagnetic wave absorbing member. For example, compared to a case where the second electromagnetic wave absorbing portion and the second wire member are fixed in a state where the second wire member does not contact the inner circumferential surface of the second through-hole, the second wire member can be prevented from moving within the second through-hole due to the vibration of the second electromagnetic wave absorbing member. As a result, the second wire member can be prevented from wearing due to contact with the inner circumferential surface of the second through-hole, and damage to the second wire member due to the vibration of the second electromagnetic wave absorbing member can be appropriately suppressed.
[0046] Furthermore, within the second through-hole, the second electrical wire is offset toward the side closer to the first electrical wire. This allows the first and second electrical wires to be placed closer together. Consequently, the size of the wiring harness can be further reduced, for example, in the portion where the first and second electromagnetic wave absorbing members are not provided.
[0047] [7] Preferably, the device further comprises an electromagnetic shielding member that surrounds the first electric wire member, the first electromagnetic wave absorbing member, the second electric wire member, and the second electromagnetic wave absorbing member.
[0048] With this configuration, the first electromagnetic wave absorbing member and the electromagnetic shielding member covering the periphery of the first electromagnetic wave absorbing member can reduce electromagnetic waves radiated from the first electric wire. Furthermore, the second electromagnetic wave absorbing member and the electromagnetic shielding member covering the periphery of the second electromagnetic wave absorbing member can reduce electromagnetic waves radiated from the second electric wire. Furthermore, because the electromagnetic shielding member is provided to surround both the first and second electromagnetic wave absorbing members, the number of components can be reduced compared to a case where separate electromagnetic shielding members are provided for the first and second electromagnetic wave absorbing members.
[0049] [8] Preferably, the device further comprises a buffer member covering the side surface of the first electromagnetic wave absorbing member facing the second electromagnetic wave absorbing member.
[0050] This configuration allows the buffer member to be interposed between the first and second electromagnetic wave absorbing members. This prevents direct contact between the first and second electromagnetic wave absorbing members, thereby preventing damage to the first and second electromagnetic wave absorbing members caused by contact.
[0051] [9] Preferably, the device further comprises: a first outer casing member for housing the first wire member and the second wire member together; and a protective member for covering the periphery of the first wire member, the second wire member, the first electromagnetic wave absorbing member, and the second electromagnetic wave absorbing member exposed from the first outer casing member.
[0052] With this configuration, the outer periphery of the first and second electromagnetic wave absorbing members is covered by the protective member. Consequently, the protective member can be interposed between the first and second electromagnetic wave absorbing members and their surrounding components. This prevents direct contact between the first and second electromagnetic wave absorbing members and surrounding components, and thus prevents damage to the first and second electromagnetic wave absorbing members due to contact with surrounding components.
[0053]
[10] Preferably, the first electric wire component comprises the first electric wire and a first covering component covering the outer periphery of the first electric wire, and the second electric wire component comprises the second electric wire and a second covering component covering the outer periphery of the second electric wire, the first covering component passes through the first through hole in a state of covering the outer periphery of the first electric wire, and the second covering component passes through the second through hole in a state of covering the outer periphery of the second electric wire.
[0054] According to this configuration, the first electric wire, while covered by the first covering member, passes through the first through-hole of the first electromagnetic wave absorbing member, and the second electric wire, while covered by the second covering member, passes through the second through-hole of the second electromagnetic wave absorbing member. Consequently, direct contact between the inner circumference of the first through-hole and the outer circumference of the first electric wire is prevented, and direct contact between the inner circumference of the second through-hole and the outer circumference of the second electric wire is prevented. This effectively prevents damage to the first and second electric wires due to contact with the inner circumferences of the first and second through-holes.
[0055] [Details of the embodiments of the present disclosure]
[0056] The following is a reference to the attached Figure 1 A specific example of the wiring harness disclosed in the present invention is described below. 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 each part are sometimes different in each of the drawings. "Parallel" and "orthogonal" in this specification include not only the cases of being strictly parallel and orthogonal, but also the cases of being roughly parallel and orthogonal within the scope of the effects of the present embodiment. In addition, the present invention is not limited to these examples, but is shown in the claims, and is intended to include all changes within the meaning and scope equivalent to the claims.
[0057] (Overall Structure of the Wiring Harness 10)
[0058] Figure 1 The wire harness 10 shown electrically connects two or more electrical devices (equipment). The wire harness 10 electrically connects an inverter 11 provided at the front of a vehicle V, such as a hybrid vehicle or an electric vehicle, and a high-voltage battery 12 provided at the rear of the vehicle V relative to the inverter 11. The wire harness 10 is laid out, for example, so as to pass under the floor of the vehicle V. For example, the middle portion of the wire harness 10 in the longitudinal direction is laid out so as to pass outside the vehicle compartment, such as under the floor of the vehicle V. The inverter 11 is connected to an electric motor (not shown) for driving wheels, which is a power source for the vehicle. The inverter 11 generates AC power from the DC power of the high-voltage battery 12 and supplies the AC power to the electric motor. The high-voltage battery 12 is, for example, a battery that can supply a voltage of several hundred volts.
[0059] The wire harness 10 includes one or more (two in this embodiment) electric wires 20 , a pair of connectors C1 attached to both ends of the electric wires 20 , and an exterior member 30 that collectively surrounds the plurality of electric wires 20 .
[0060] (Configuration of Electric Wire 20)
[0061] One end of each wire 20 is connected to the inverter 11 via a connector C1, and the other end of each wire 20 is connected to the high-voltage battery 12 via a connector C1. Each wire 20 is formed, for example, in an elongated shape extending in the front-to-rear direction of the vehicle V. Each wire 20 is formed, for example, to be curved in a two-dimensional or three-dimensional shape depending on the routing path of the wire harness 10. Each wire 20 is, for example, a high-voltage wire capable of handling high voltage and high current. Each wire 20 can be a shielded wire with an inherent electromagnetic shielding structure or an unshielded wire without an inherent electromagnetic shielding structure. In this embodiment, each wire 20 is an unshielded wire.
[0062] like Figure 2 As shown, the wire 20 has a connection with the high voltage battery 12 (see Figure 1 ) is connected to the positive electrode side of the positive terminal of the electric wire 20A, and the high voltage battery 12 (refer to Figure 1 ) is connected to the negative terminal of the negative electrode side wire 20B.
[0063] The electric wires 20A and 20B are covered electric wires having a core wire 21 composed of a conductor and an insulating coating 22 covering the outer periphery of the core wire 21. Examples of the core wire 21 include a stranded wire formed by twisting a plurality of metal wires, a columnar conductor formed by a single metal rod with a solid internal structure, and a cylindrical conductor with a hollow internal structure. For example, a combination of stranded wire, columnar conductor, and cylindrical conductor may be used as the core wire 21. Examples of columnar conductors include single-core wires and busbars. The core wire 21 of this embodiment is a stranded wire. Examples of the material of the core wire 21 include copper-based, aluminum-based, and other metal materials.
[0064] (Configuration of Core Wire 21)
[0065] The cross-sectional shape (i.e., the cross-sectional shape) of the core wire 21 cut along a plane perpendicular to the longitudinal direction of the core wire 21 can be any shape. The cross-sectional shape of the core wire 21 can be formed into, for example, a circular, semicircular, polygonal, square, or flat shape. In this embodiment, the cross-sectional shape of the core wire 21 is formed into a circular shape.
[0066] (Configuration of Insulation Cover 22)
[0067] The insulating coating 22, for example, covers the entire outer circumference of the core wire 21. The insulating coating 22 is formed, for example, from an insulating material such as a synthetic resin. Examples of materials for the insulating coating 22 include synthetic resins primarily composed of polyolefin resins such as cross-linked polyethylene and cross-linked polypropylene. The insulating coating 22 can be made from a single material or a combination of two or more materials. The insulating coating 22 can be formed, for example, by extrusion molding (extrusion coating) of the core wire 21.
[0068] (Configuration of Exterior Member 30)
[0069] Figure 1 The outer casing 30 shown is formed into an elongated cylindrical shape as a whole. A plurality of electric wires 20 are accommodated in the internal space of the outer casing 30. The outer casing 30 is formed, for example, so as to surround the outer periphery of the plurality of electric wires 20 over the entire circumference. The outer casing 30 protects the electric wires 20 from, for example, flying objects and water droplets. As the outer casing 30, for example, a metal or resin tube, a resin protector, a flexible bellows made of resin or the like, a rubber waterproof cover, or a combination of these can be used. As the material of the metal tube, a copper-based metal material, an aluminum-based metal material, etc. can be used. As the material of the resin protector and the bellows, for example, a conductive resin material or a non-conductive resin material can be used. As the resin material, for example, a synthetic resin such as polyolefin, polyamide, polyester, or ABS resin can be used.
[0070] like Figure 2 As shown, the exterior member 30 includes, for example, a bellows 40, a bellows 50, and a protective member 60. In this embodiment, the bellows 40 and 50 are made of a non-conductive resin material. Examples of the resin material include synthetic resins such as polyolefin, polyamide, polyester, and ABS resin.
[0071] (Structure of the bellows 40)
[0072] The corrugated tube 40 is, for example, formed into a cylindrical shape that surrounds the outer periphery of the plurality of wires 20A and 20B. The corrugated tube 40 is, for example, arranged to surround the outer periphery of the plurality of wires 20A and 20B over the entire circumference. The corrugated tube 40 is, for example, arranged to surround a portion of the lengthwise (axial) direction of the wires 20A and 20B. The corrugated tube 40 has a corrugated structure with annular protrusions 41 and annular recesses 42 alternately arranged continuously along its lengthwise direction. The bellows 40 is more flexible than the core wire 21. The bellows 40 of this embodiment is formed into a cylindrical shape.
[0073] (Structure of the bellows 50)
[0074] The corrugated tube 50 is, for example, provided separately from the corrugated tube 40 in the longitudinal direction of each of the wires 20A and 20B. The corrugated tube 50 is, for example, formed into a cylindrical shape that surrounds the outer periphery of the plurality of wires 20A and 20B. The corrugated tube 50 is, for example, provided so as to surround the outer periphery of the plurality of wires 20A and 20B over the entire circumference. The corrugated tube 50 is, for example, provided so as to surround a portion of the longitudinal direction of the wires 20A and 20B. The corrugated tube 50 has a corrugated structure with annular protrusions 51 and annular recesses 52 alternately provided continuously along its longitudinal direction. The corrugated tube 50 is more flexible than the core wire 21. The corrugated tube 50 of this embodiment is formed into a cylindrical shape.
[0075] (Configuration of Protection Member 60)
[0076] The protective member 60 is, for example, installed so as to span the outer periphery of the corrugated tube 40 and the outer periphery of the corrugated tube 50. The protective member 60 is, for example, formed in a cylindrical shape with both ends of the wires 20A and 20B open in the longitudinal direction. As the material of the protective member 60, for example, an elastic material with a relatively high hardness can be used. As the elastic material, for example, rubber such as ethylene-propylene-diene rubber or an elastomer can be used.
[0077] (Configuration of the Wire Harness 10)
[0078] For example, the wire harness 10 includes an electromagnetic wave absorbing member 70A provided along a portion of the longitudinal direction of the wire 20A, and an electromagnetic wave absorbing member 70B provided along a portion of the longitudinal direction of the wire 20B. The wire harness 10 also includes a restriction member 80A for restricting relative movement of the electromagnetic wave absorbing member 70A with respect to the wire 20A in the longitudinal direction of the wire 20A, and a restriction member 80B for restricting relative movement of the electromagnetic wave absorbing member 70B with respect to the wire 20B in the longitudinal direction of the wire 20B. For example, the electromagnetic wave absorbing member 70A is provided on one wire 20A. For example, the electromagnetic wave absorbing member 70B is provided on one wire 20B. That is, the electromagnetic wave absorbing members 70A and 70B are provided separately on each of the wires 20A and 20B. The electromagnetic wave absorbing member 70A and the electromagnetic wave absorbing member 70B are provided at positions separated from each other in the longitudinal direction of the wires 20A and 20B.
[0079] Here, the electromagnetic wave absorbing members 70A and 70B have the same structure, and the limiting members 80A and 80B have the same structure. Therefore, the electromagnetic wave absorbing member 70B is denoted by the same reference numerals as the electromagnetic wave absorbing member 70A, and the limiting member 80B is denoted by the same reference numerals as the limiting member 80A, and detailed descriptions of these elements are omitted.
[0080] (Configuration of Electromagnetic Wave Absorbing Member 70A)
[0081] The electromagnetic wave absorbing member 70A is, for example, provided around the outer periphery of the electric wire 20A between the corrugated tube 40 and the corrugated tube 50. For example, in the longitudinal direction of the electric wire 20A, the corrugated tube 40 is provided on one side of the electromagnetic wave absorbing member 70A, and the electromagnetic wave absorbing member 70B and the corrugated tube 50 are provided on the other side of the electromagnetic wave absorbing member 70A. The electromagnetic wave absorbing member 70A is, for example, provided separately from the corrugated tube 40 in the longitudinal direction of the electric wire 20A. The electromagnetic wave absorbing member 70A is, for example, provided separately from the electromagnetic wave absorbing member 70B and the corrugated tube 50 in the longitudinal direction of the electric wire 20A. The electromagnetic wave absorbing member 70A is, for example, exposed from the corrugated tubes 40 and 50. The electromagnetic wave absorbing member 70A is, for example, provided so as to surround the outer periphery of one electric wire 20A. The electromagnetic wave absorbing member 70A absorbs, for example, a portion of the electromagnetic waves (electromagnetic noise) radiated from the electric wire 20A.
[0082] The electromagnetic wave absorbing member 70A, for example, has a through-hole 71X through which the electric wire 20A passes. The electromagnetic wave absorbing member 70A is formed into a ring shape, for example, by having the through-hole 71X. The electromagnetic wave absorbing member 70A is formed into a ring shape, for example, having the through-hole 71X when viewed from above along the longitudinal direction of the electric wire 20A, and having a predetermined length along a first central axis extending along a central axis passing through the center of the through-hole 71X. In this embodiment, the first central axis of the electromagnetic wave absorbing member 70A is set to extend parallel to the longitudinal direction of the electric wire 20A.
[0083] The through hole 71X is formed to penetrate the electromagnetic wave absorbing member 70A in the longitudinal direction of the electric wire 20A. The electric wire 20A is provided to penetrate the through hole 71X. The inner peripheral surface of the through hole 71X faces the outer peripheral surface of the electric wire 20A.
[0084] The electromagnetic wave absorbing member 70A of this embodiment consists solely of a ring-shaped magnetic core 72. The magnetic core 72 of this embodiment is formed in a toroidal shape. For example, by being positioned so as to face the electrical wire 20A across the entire circumference of the electrical wire 20A, the magnetic core 72 functions to reduce electromagnetic waves radiated from the electrical wire 20A. For example, the magnetic core 72 absorbs electromagnetic waves radiated from the electrical wire 20A and converts the energy of these electromagnetic waves into mechanical energy such as vibration or thermal energy. This reduces the adverse effects of electromagnetic waves radiated from the electrical wire 20A on peripheral devices and the like.
[0085] The magnetic core 72 is, for example, a molded body containing a soft magnetic material. Examples of soft magnetic materials include iron (Fe), iron alloys, and ferrites. Examples of iron alloys include Fe-silicon (Si) alloys and Fe-nickel (Ni) alloys. Examples of the magnetic core 72 include ferrite cores, amorphous cores, and Permalloy cores. The ferrite core is, for example, made of soft ferrite exhibiting soft magnetic properties. Examples of soft ferrites include ferrites containing nickel (Ni) and zinc (Zn), or ferrites containing manganese (Mn) and zinc (Zn). The material of the magnetic core 72 can be appropriately selected, for example, depending on the frequency band of the electromagnetic noise to be reduced.
[0086] like Figure 3As shown, the magnetic core 72 of the present embodiment is formed continuously throughout the entire circumference, forming a closed ring shape. That is, the magnetic core 72 of the present embodiment is formed into a structure that is connected as a whole and forms a ring without any disconnection, that is, a jointless structure with the same starting point and end point. In other words, the magnetic core 72 of the present embodiment does not form a slit extending along the first center axis direction. The magnetic core 72 of the present embodiment is composed of one component. In addition, in the present embodiment, although the magnetic core 72 is composed of one component, a plurality of magnetic core pieces can also be combined to form a ring-shaped magnetic core 72. For example, a pair of magnetic core pieces with a semicircular cross-section can also be combined to form the magnetic core 72 in a circular ring shape.
[0087] like Figure 2 As shown, the magnetic core 72 has, for example, an outer peripheral surface 72A extending in the circumferential direction of the magnetic core 72, a side surface 72B extending in the radial direction of the magnetic core 72 and facing the bellows 40, and a side surface 72C extending in the radial direction of the magnetic core 72 and facing the bellows 50. Side surfaces 72B and 72C are, for example, located between the outer peripheral surface 72A and the inner peripheral surface of the through-hole 71X. The outer peripheral dimensions of the magnetic core 72 are, for example, set to be larger than the outer peripheral dimensions of the bellows 40, 50. Therefore, the outer peripheral surface 72A of the magnetic core 72 is provided at a position that protrudes radially outward from the outer peripheral surfaces of the bellows 40, 50.
[0088] (Configuration of Restriction Member 80A)
[0089] The restriction member 80A is provided, for example, so as to fix the electromagnetic wave absorbing member 70A to the outer periphery of the electric wire 20A.
[0090] The limiting member 80A is formed by, for example, wrapping a tape member 81 around the electromagnetic wave absorbing member 70A and the electric wire 20A. The tape member 81, for example, has an adhesive layer on one surface. The tape member 81 is wrapped around the electromagnetic wave absorbing member 70A and the electric wire 20A, for example, with the adhesive layer facing radially inward. The tape member 81 is wrapped around the outer circumferential surface 72A of the electromagnetic wave absorbing member 70A and the outer circumferential surface of the electric wire 20A.
[0091] The tape member 81 is continuously wound, for example, from the outer peripheral surface 72A of the magnetic core 72 to the outer peripheral surface of the electric wire 20A. Although not shown in the figure, the tape member 81 has, for example, an overlapping winding structure. Here, the so-called overlapping winding structure is a structure in which the tape member 81 is wound into a spiral shape in a manner that predetermined portions in the width direction of the tape member 81 overlap with each other. In addition, the width direction of the tape member 81 is a direction extending along the longitudinal direction of the electric wire 20. As an overlapping winding structure, for example, a half-overlapping winding structure is preferred. Here, the so-called half-overlapping winding structure is a structure in which the tape member 81 is wound into a spiral shape in a manner in which the portions that become approximately half in the width direction of the tape member 81 overlap with each other.
[0092] The tape member 81 covers, for example, the outer peripheral surface 72A of the electromagnetic wave absorbing member 70A, tightening it radially inward. The tape member 81 covers, for example, the outer peripheral surface 72A of the electromagnetic wave absorbing member 70A over its entire circumference. The electromagnetic wave absorbing member 70A is fixed to the electric wire 20A by being tightened radially inward by the tape member 81, for example.
[0093] The tape member 81 covers the outer peripheral surface of the wire 20A so as to be tightened radially inward, for example. The tape member 81 covers the outer peripheral surface of the wire 20A over the entire circumference, for example.
[0094] like Figure 3 As shown, the tape member 81 is wrapped around the outer circumference of the electromagnetic wave absorbing member 70A and the wire 20A, for example, so that the wire 20A is offset within the through-hole 71X of the electromagnetic wave absorbing member 70A toward a portion of the circumference of the through-hole 71X. When the electromagnetic wave absorbing member 70A is viewed along the central axis of the through-hole 71X, the inner circumference of the through-hole 71X includes a first portion 71A and a second portion 71B located point-symmetrically with respect to the first portion 71A relative to the central axis of the through-hole 71X. Within the through-hole 71X, the wire 20A is in contact with the first portion 71A and separated from the second portion 71B. In this embodiment, the first portion 71A is located farther from the wire 20B than the second portion 71B in a direction intersecting the first central axis of the electromagnetic wave absorbing member 70A. The tape member 81 secures the electromagnetic wave absorbing member 70A to the outer periphery of the electric wire 20A, for example, so that the electric wire 20A contacts the first portion 71A and is separated from the second portion 71B. In other words, the electromagnetic wave absorbing member 70A is secured to the outer periphery of the electric wire 20A by the tape member 81, with the electric wire 20A in contact with the first portion 71A within the through-hole 71X and biased toward the first portion 71A (in this embodiment, the side away from the electric wire 20B).
[0095] like Figure 2As shown, the electric wire 20A is, for example, arranged in a biased manner in the same direction, that is, toward the first portion 71A (upward in the previous figure), along the entire length of the through-hole 71X in the direction of the first central axis. In this embodiment, the electric wire 20A is arranged in a biased manner toward the side away from the electric wire 20B along the entire length of the through-hole 71X in the direction of the first central axis. In other words, the tape member 81 of the restricting member 80A is wound around the outer circumference of the electromagnetic wave absorbing member 70A and the electric wire 20A so that the electric wire 20A is arranged in the same direction along the entire length of the through-hole 71X in the direction of the first central axis.
[0096] (Configuration of Electromagnetic Wave Absorbing Member 70B)
[0097] The electromagnetic wave absorbing member 70B is provided, for example, on the outer periphery of the electric wire 20B between the corrugated tube 40 and the corrugated tube 50. For example, in the longitudinal direction of the electric wire 20B, the electromagnetic wave absorbing member 70A and the corrugated tube 40 are provided on one side of the electromagnetic wave absorbing member 70B, and the corrugated tube 50 is provided on the other side of the electromagnetic wave absorbing member 70B.
[0098] The electromagnetic wave absorbing member 70B is provided, for example, at a position separated from the electromagnetic wave absorbing member 70A in the longitudinal direction of the electric wires 20A and 20B. The electromagnetic wave absorbing member 70B is provided, for example, at a position separated from the electromagnetic wave absorbing member 70A in the longitudinal direction of the electric wires 20A and 20B by a length that is at least twice the length of the electromagnetic wave absorbing member 70A along the first central axis.
[0099] The electromagnetic wave absorbing member 70B is formed, for example, into a ring shape having a through-hole 71Y when viewed from above along the length of the electric wire 20B and extending along a second central axis extending along a central axis extending through the center of the through-hole 71Y. The electromagnetic wave absorbing member 70B of this embodiment consists solely of a ring-shaped magnetic core 72. The magnetic core 72 of the electromagnetic wave absorbing member 70B is arranged, for example, so as to face the electric wire 20B over the entire circumference of the electric wire 20B, thereby reducing electromagnetic waves radiated from the electric wire 20B. The electric wire 20B is provided, for example, so as to penetrate the through-hole 71Y. The inner circumferential surface of the through-hole 71Y faces the outer circumferential surface of the electric wire 20B.
[0100] (Configuration of Restriction Member 80B)
[0101] The restriction member 80B is provided, for example, to fix the electromagnetic wave absorbing member 70B to the electric wire 20B.
[0102] The restricting member 80B is formed, for example, by wrapping a tape member 81 around the electromagnetic wave absorbing member 70B and the electric wire 20B. The tape member 81 is continuously wound, for example, from the outer peripheral surface 72A of the magnetic core 72 of the electromagnetic wave absorbing member 70B to the outer peripheral surface of the electric wire 20B. Although not shown in the figure, the tape member 81 has, for example, an overlapping wound structure.
[0103] like Figure 3 As shown, the tape member 81 of the restricting member 80B is wrapped around the outer circumference of the electromagnetic wave absorbing member 70B and the wire 20B, for example, so that the wire 20B is offset within the through-hole 71Y of the electromagnetic wave absorbing member 70B toward a portion of the through-hole 71Y in the circumferential direction. When the electromagnetic wave absorbing member 70B is viewed along the central axis of the through-hole 71Y, the inner circumferential surface of the through-hole 71Y includes a third portion 71C and a fourth portion 71D located point-symmetrically with respect to the third portion 71C relative to the central axis of the through-hole 71Y. In this embodiment, the wire 20B is in contact with the third portion 71C within the through-hole 71Y and separated from the fourth portion 71D. In this embodiment, the third portion 71C is located farther from the wire 20A than the fourth portion 71D in a direction intersecting the second central axis of the electromagnetic wave absorbing member 70B. The tape member 81 of the restricting member 80B secures the electromagnetic wave absorbing member 70B to the outer periphery of the electric wire 20B, for example, so that the electric wire 20B contacts the third portion 71C and is separated from the fourth portion 71D. In other words, the electromagnetic wave absorbing member 70B is secured to the outer periphery of the electric wire 20B by the tape member 81 of the restricting member 80B, with the electric wire 20B in contact with the third portion 71C within the through-hole 71Y and biased toward the third portion 71C (in this embodiment, the side away from the electric wire 20A).
[0104] like Figure 2 As shown, for example, the electric wire 20B is arranged in a biased manner in the same direction, that is, toward the third portion 71C (here, the lower side in the figure), along the entire length of the through-hole 71Y in the direction of the second central axis. In this embodiment, the electric wire 20B is arranged in a biased manner toward the side away from the electric wire 20A along the entire length of the through-hole 71Y in the direction of the second central axis. In other words, the tape member 81 of the restricting member 80B is wound around the outer peripheral surface of the electromagnetic wave absorbing member 70B and the electric wire 20B so that the electric wire 20B is biased in the same direction along the entire length of the through-hole 71Y in the direction of the second central axis.
[0105] like Figure 3As shown, the electromagnetic wave absorbing member 70A is provided, for example, so as to overlap a portion of the electromagnetic wave absorbing member 70B when viewed from above in the direction of the first central axis of the electromagnetic wave absorbing member 70A. For example, the lower portion of the electromagnetic wave absorbing member 70A is provided so as to overlap the upper portion of the electromagnetic wave absorbing member 70B when viewed from above in the direction of the first central axis. For example, the lower portion of the electromagnetic wave absorbing member 70A is provided so as to partially overlap the through-hole 71Y of the electromagnetic wave absorbing member 70B when viewed from above in the direction of the first central axis.
[0106] (Configuration of Braided Member 90)
[0107] like Figure 2 As shown, the braided member 90 is, for example, formed as a whole into a cylindrical shape that surrounds the outer periphery of the plurality of electrical wires 20A and 20B. The braided member 90 is, for example, arranged to surround the outer periphery of the electrical wires 20A and 20B over substantially the entire length of the electrical wires 20A and 20B in the longitudinal direction. The braided member 90 is, for example, formed to surround the outer periphery of the plurality of electrical wires 20A and 20B within the interior spaces of the corrugated tubes 40 and 50, respectively. In other words, the corrugated tubes 40 and 50 are respectively arranged to surround the outer peripheries of the electrical wires 20A and 20B and the braided member 90. The braided member 90 is, for example, formed to surround the outer peripheries of the electromagnetic wave absorbing members 70A and 70B between the corrugated tubes 40 and 50. The braided member 90 is, for example, formed so that the outer shape of the portion covering the electromagnetic wave absorbing members 70A and 70B is larger than the outer shape of the other portions. The braided member 90 is provided, for example, in the internal space of the protective member 60 so as to surround the outer peripheries of the electric wires 20A and 20B, the electromagnetic wave absorbing members 70A and 70B, and the restricting members 80A and 80B.
[0108] As the braided member 90, a braided member formed by braiding a plurality of metal wires or a braided member formed by combining metal wires and resin wires can be used. As the material of the metal wires, for example, copper-based, aluminum-based metal materials can be used. As the resin wires, for example, reinforcing fibers with excellent insulation and shear resistance such as para-aramid fibers can be used. In addition, although not shown in the figure, the two ends of the braided member 90 are connected, for example, to the connector C1 (see Figure 1 ) etc. are grounded.
[0109] (Configuration of Protection Member 60)
[0110] The protection member 60 is provided so as to surround the outer periphery of the electromagnetic wave absorbing members 70A and 70B, for example. The protection member 60 functions as a waterproof cover for waterproofing various members arranged inside the protection member 60, for example.
[0111] The protective member 60 includes, for example, a cylindrical connecting cylinder 61 connected to the outer periphery of the bellows 40; a cylindrical connecting cylinder 62 connected to the outer periphery of the bellows 50; and a main cylinder 63 provided between the connecting cylinder 61 and the connecting cylinder 62. The main cylinder 63 is formed so as to protrude radially outwards from the other parts, that is, the outer peripheries of the connecting cylinders 61 and 62. The main cylinder 63 is formed, for example, so as to protrude radially outwards from the connecting cylinders 61 and 62 over the entire circumference of the connecting cylinders 61 and 62. The outer peripheral dimensions of the main cylinder 63 are formed, for example, to be larger than the outer peripheral dimensions of the connecting cylinders 61 and 62. The protective member 60 is, for example, a single component in which the connecting cylinder 61, the main cylinder 63 and the connecting cylinder 62 are continuously formed as one body. The connecting cylinders 61, 62 and the main cylinder 63 of this embodiment are formed continuously over the entire circumference, forming a jointless structure with the same starting point and end point. In other words, the connection cylinders 61 and 62 and the main body cylinder 63 of the present embodiment do not have a slit extending in the longitudinal direction of the electric wire 20 .
[0112] Regarding the protection member 60 , for example, the connecting cylindrical portion 61 is fitted to the outer periphery of the corrugated tube 40 , and the connecting cylindrical portion 62 is fitted to the outer periphery of the corrugated tube 50 .
[0113] The connecting cylinder 61 is formed, for example, into a cylindrical shape of a size that can be fitted with the outer periphery of the bellows 40. The connecting cylinder 61 of this embodiment is formed into a cylindrical shape. On the inner peripheral surface of the end of the connecting cylinder 61, for example, one or more (here, four) lips 61A are formed to engage with the bellows 40. Each lip 61A is formed continuously over the entire circumference of the inner peripheral surface of the connecting cylinder 61, forming a jointless structure. Each lip 61A is formed, for example, so as to enter the annular recess 42 of the bellows 40 when the connecting cylinder 61 is fitted with the outer periphery of the bellows 40.
[0114] A connecting member 65 is provided on the outer circumferential surface of the connecting cylindrical portion 61. Examples of the connecting member 65 include a resin or metal binding band, a fastening ring, or a tape member. The connecting cylindrical portion 61 is secured to the corrugated tube 40 from the outer circumference by the connecting member 65. For example, the connecting cylindrical portion 61 is secured to the corrugated tube 40 from the outer circumference by the connecting member 65 until it forms a liquid-tight fit with the corrugated tube 40. This prevents water from entering the protective member 60 from between the connecting cylindrical portion 61 and the corrugated tube 40.
[0115] The connecting cylinder 62 is formed, for example, into a cylindrical shape of a size that can be fitted with the outer periphery of the bellows 50. The connecting cylinder 62 of this embodiment is formed into a cylindrical shape. On the inner peripheral surface of the end of the connecting cylinder 62, for example, one or more (here, four) lips 62A are formed to engage with the bellows 50. Each lip 62A is formed continuously over the entire circumference of the inner peripheral surface of the connecting cylinder 62, forming a jointless structure. Each lip 62A is formed, for example, so that when the connecting cylinder 62 is fitted with the outer periphery of the bellows 50, it enters the annular recess 52 of the bellows 50.
[0116] A connecting member 66 is provided on the outer circumferential surface of the connecting cylindrical portion 62. Examples of the connecting member 66 include a resin or metal binding band, a fastening ring, or a tape member. The connecting cylindrical portion 62 is secured to the corrugated tube 50 from the outer circumference by the connecting member 66. For example, the connecting cylindrical portion 62 is secured to the corrugated tube 50 from the outer circumference by the connecting member 66 until it is in fluid-tight contact with the corrugated tube 50. This prevents water from entering the protective member 60 from between the connecting cylindrical portion 62 and the corrugated tube 50.
[0117] The main body tube 63 is, for example, formed integrally and continuously with the connecting tube 61 at one end, and integrally and continuously with the connecting tube 62 at the other end. The main body tube 63 is, for example, formed in a cylindrical shape of a size sufficient to accommodate the electromagnetic wave absorbing members 70A and 70B. The main body tube 63 of this embodiment is formed in a cylindrical shape. The main body tube 63 is formed so as to surround the electromagnetic wave absorbing members 70A and 70B throughout the entire circumference. The main body tube 63 is formed so as to surround, for example, the electrical wires 20A and 20B exposed from the corrugated tubes 40 and 50, the electromagnetic wave absorbing members 70A and 70B, the limiting members 80A and 80B, and the braided member 90 throughout the entire circumference.
[0118] Next, the effects of this embodiment will be described.
[0119] (1) The wire harness 10 includes: an electric wire 20A; an annular electromagnetic wave absorbing member 70A having a through-hole 71X through which the electric wire 20A passes; and a restricting member 80A that restricts relative movement of the electromagnetic wave absorbing member 70A with respect to the electric wire 20A in the longitudinal direction of the electric wire 20A. The wire harness 10 includes: an electric wire 20B; an annular electromagnetic wave absorbing member 70B having a through-hole 71Y through which the electric wire 20B passes; and a restricting member 80B that restricts relative movement of the electromagnetic wave absorbing member 70B with respect to the electric wire 20B in the longitudinal direction of the electric wire 20B.
[0120] According to this configuration, the electromagnetic wave absorbing member 70A is provided on the wire 20A, and the electromagnetic wave absorbing member 70B is provided on the wire 20B. That is, the electromagnetic wave absorbing members 70A and 70B are provided separately for the wires 20A and 20B. This reduces the electromagnetic waves to be reduced in each of the electromagnetic wave absorbing members 70A and 70B, compared to a case where a single electromagnetic wave absorbing member is provided for multiple wires. Consequently, the electromagnetic wave absorbing members 70A and 70B can be miniaturized and their respective masses reduced, compared to a case where a single electromagnetic wave absorbing member is provided for multiple wires. This reduces the loads applied to the wires 20A and 20B from the electromagnetic wave absorbing members 70A and 70B when the electromagnetic wave absorbing members 70A and 70B vibrate due to vehicle travel, for example. Consequently, damage to the wires 20A and 20B caused by the vibration of the electromagnetic wave absorbing members 70A and 70B can be suppressed.
[0121] (2) The electromagnetic wave absorbing member 70A is provided so as to overlap a portion of the electromagnetic wave absorbing member 70B in a plan view seen in the direction of the first central axis extending from the central axis of the through-hole 71X.
[0122] (3) Furthermore, the electromagnetic wave absorbing members 70A and 70B are provided separately for the wires 20A and 20B, respectively. Therefore, the shapes and installation positions of the electromagnetic wave absorbing members 70A and 70B can be independently determined. This improves the design freedom of the wire harness 10 compared to providing a single electromagnetic wave absorbing member for multiple wires.
[0123] (4) The electromagnetic wave absorbing member 70A and the electric wire 20A are fixed (integrated) in a state where the electric wire 20A contacts the first portion 71A within the through-hole 71X and is arranged biased toward the first portion 71A. Therefore, even when the electromagnetic wave absorbing member 70A vibrates due to the movement of the vehicle, the electric wire 20A can be prevented from shaking within the through-hole 71X due to the vibration of the electromagnetic wave absorbing member 70A. For example, compared to a case where the electromagnetic wave absorbing member 70A and the electric wire 20A are fixed in a state where the electric wire 20A does not contact the inner circumferential surface of the through-hole 71X, the electric wire 20A can be prevented from moving within the through-hole 71X due to the vibration of the electromagnetic wave absorbing member 70A. As a result, wear of the electric wire 20A due to contact with the inner circumferential surface of the through-hole 71X can be suppressed, and damage to the electric wire 20A due to the vibration of the electromagnetic wave absorbing member 70A can be appropriately suppressed. Furthermore, since the electric wire 20A can be prevented from rattling in the through-hole 71X, the generation of abnormal sound between the electromagnetic wave absorbing member 70A and the electric wire 20A can be prevented.
[0124] (5) The electromagnetic wave absorbing member 70B and the electric wire 20B are fixed (integrated) in a state where the electric wire 20B contacts the third portion 71C inside the through-hole 71Y and is arranged biased toward the third portion 71C. Therefore, even when the electromagnetic wave absorbing member 70B vibrates due to the movement of the vehicle, the electric wire 20B can be prevented from shaking inside the through-hole 71Y due to the vibration of the electromagnetic wave absorbing member 70B. As a result, the electric wire 20B can be prevented from being worn due to contact with the inner peripheral surface of the through-hole 71Y, and damage to the electric wire 20B due to the vibration of the electromagnetic wave absorbing member 70B can be appropriately suppressed. In addition, since the electric wire 20B can be prevented from shaking inside the through-hole 71Y, the generation of abnormal sounds between the electromagnetic wave absorbing member 70B and the electric wire 20B can be suppressed.
[0125] (6) The electric wire 20A is arranged biasedly within the through-hole 71X of the electromagnetic wave absorbing member 70A, toward the first portion 71A, which is away from the electric wire 20B. Furthermore, the electric wire 20B is arranged biasedly within the through-hole 71Y of the electromagnetic wave absorbing member 70B, toward the third portion 71C, which is away from the electric wire 20A. With this configuration, the electric wire 20A and the electric wire 20B are arranged biasedly, moving away from each other, within the through-holes 71X and 71Y. This allows the electromagnetic wave absorbing member 70A and the electromagnetic wave absorbing member 70B to overlap significantly when viewed from above in the direction of the first central axis. As a result, the size of the wire harness 10 can be appropriately suppressed.
[0126] (7) A braided member 90 is provided that surrounds the electric wire 20A, the electromagnetic wave absorbing member 70A, the electric wire 20B, and the electromagnetic wave absorbing member 70B. With this configuration, the electromagnetic wave absorbing member 70A and the braided member 90 covering the outer periphery of the electromagnetic wave absorbing member 70A can reduce electromagnetic waves radiated from the electric wire 20A. Furthermore, the electromagnetic wave absorbing member 70B and the braided member 90 covering the outer periphery of the electromagnetic wave absorbing member 70B can reduce electromagnetic waves radiated from the electric wire 20B.
[0127] (8) Furthermore, since the braided member 90 is provided so as to surround both the electromagnetic wave absorbing member 70A and the electromagnetic wave absorbing member 70B, the number of components can be reduced compared to a case where separate braided members are provided for the electromagnetic wave absorbing members 70A and 70B.
[0128] (9) A protective member 60 is provided to cover the outer periphery of the electromagnetic wave absorbing members 70A and 70B. Thus, the protective member 60 can be interposed between the electromagnetic wave absorbing members 70A and 70B and their surrounding components. This prevents the electromagnetic wave absorbing members 70A and 70B from directly contacting the surrounding components, thereby preventing damage to the electromagnetic wave absorbing members 70A and 70B due to contact between the electromagnetic wave absorbing members 70A and 70B and the surrounding components.
[0129] (Other embodiments)
[0130] The above embodiment can be implemented with the following modifications: The above embodiment and the following modifications can be implemented in combination with each other within the scope of no technical contradiction.
[0131] In the above embodiment, the electric wire 20A is arranged inside the through-hole 71X of the electromagnetic wave absorbing member 70A, in contact with the first portion 71A, which is away from the electric wire 20B, and is biased toward the first portion 71A. Furthermore, the electric wire 20B is arranged inside the through-hole 71Y of the electromagnetic wave absorbing member 70B, in contact with the third portion 71C, which is away from the electric wire 20A, and is biased toward the third portion 71C. However, the arrangement of the electric wires 20A and 20B is not limited to this.
[0132] ·For example Figure 4 As shown, the electric wire 20B may be arranged so as not to contact the third portion 71C within the through-hole 71Y of the electromagnetic wave absorbing member 70B. For example, the electric wire 20B may be arranged so as not to be biased toward the third portion 71C within the through-hole 71Y. For example, the electric wire 20B may be arranged near the center of the through-hole 71Y within the through-hole 71Y.
[0133] ·For example Figure 5 and Figure 6 As shown, the electric wire 20A may be arranged inside the through-hole 71X so as to contact the second portion 71B and be offset toward the second portion 71B. Here, the second portion 71B is a portion located closer to the electric wire 20B than the first portion 71A in a direction intersecting the first central axis of the electromagnetic wave absorbing member 70A. In other words, the electric wire 20A may be arranged inside the through-hole 71X so as to be offset toward the second portion 71B, closer to the electric wire 20B than the first portion 71A.
[0134] Furthermore, the electric wire 20B may be arranged inside the through-hole 71Y so as to contact the fourth portion 71D and be offset toward the fourth portion 71D. Here, the fourth portion 71D is a portion located closer to the electric wire 20A than the third portion 71C in a direction intersecting the second central axis of the electromagnetic wave absorbing member 70B. In other words, the electric wire 20B may be arranged inside the through-hole 71Y so as to be offset toward the fourth portion 71D, which is closer to the electric wire 20A than the third portion 71C.
[0135] According to this structure, the electric wires 20A and 20B can be brought close to each other. Therefore, for example, the size of the wire harness 10 in the portion where the electromagnetic wave absorbing members 70A and 70B are not provided can be reduced. Figure 5 The inner and outer dimensions of the bellows 40 and 50 are shown.
[0136] ·For example Figure 7 As shown, the wire 20A may be arranged within the through-hole 71X so as to be biased toward the second portion 71B, which is closer to the wire 20B, while the wire 20B may not contact the fourth portion 71D within the through-hole 71Y. For example, the wire 20B may not be biased toward the fourth portion 71D within the through-hole 71Y. For example, the wire 20B may be arranged within the through-hole 71Y near the center of the through-hole 71Y.
[0137] For example, Figure 7 In the modified example shown, for example, the wire 20A may be arranged inside the through-hole 71X so as not to contact the inner circumferential surface of the through-hole 71X. For example, the wire 20A may be arranged inside the through-hole 71X so as not to be biased toward the second portion 71B. For example, the wire 20A may be arranged inside the through-hole 71X near the center of the through-hole 71X.
[0138] In the above embodiment, the protective member 60 is embodied as a jointless structure, but the present invention is not limited to this. That is, in the above embodiment, the protective member 60 is embodied as a member that is already formed into a cylindrical body before the electromagnetic wave absorbing members 70A and 70B are arranged inside, but the present invention is not limited to this.
[0139] For example Figure 6 As shown in FIG. 1 , the protective member 60 may be embodied as a sheet-like structure having slits 67 extending along the longitudinal direction of the wires 20A and 20B. The protective member 60 of this modified example is formed, for example, by winding a flexible sheet around the circumference of the wires 20A and 20B to form a cylindrical shape. The protective member 60 has, for example, a first direction (in the first direction) intersecting the longitudinal direction of the wires 20A and 20B. Figure 6 The protective member 60 includes an end portion 68 (in the circumferential direction of the electric wires 20A and 20B) and an end portion 69 on the opposite side of the end portion 68 in the first direction. The protective member 60 is formed, for example, into a cylindrical shape by overlapping the end portions 68 and 69 in the radial direction of the electromagnetic wave absorbing members 70A and 70B. The inner circumferential dimension of the protective member 60 can be adjusted to correspond to the outer circumferential dimension of the electromagnetic wave absorbing members 70A and 70B, for example, by adjusting the overlap width between the end portions 68 and 69. The protective member 60 has, for example, elasticity that allows it to return from a cylindrical state, in which it surrounds the outer circumference of the electromagnetic wave absorbing members 70A and 70B, to a sheet state, in which it does not surround the outer circumference of the electromagnetic wave absorbing members 70A and 70B.
[0140] The protection member 60 is formed by, for example, Figure 2The connecting members 65 and 66 shown are fixed to the outer periphery of the corrugated tubes 40 and 50 to maintain the cylindrical state. As the connecting members 65 and 66, for example, a tape member, a binding belt, a tightening belt, etc. can be used.
[0141] Then, follow Figure 5 Next, a configuration in which tape members 65A and 66A are used as the connecting members 65 and 66 , respectively, will be described.
[0142] The tape member 65A is formed to fix the longitudinal ends of the protection member 60 to the outer peripheral surface of the corrugated tube 40 , for example. The tape member 66A is formed to fix the longitudinal ends of the protection member 60 to the outer peripheral surface of the corrugated tube 50 , for example.
[0143] The tape member 65A is wrapped around, for example, the outer circumferential surface of the longitudinal end portion of the protective member 60 and the outer circumferential surface of the corrugated tube 40 exposed from the protective member 60. The tape member 65A is wrapped continuously from, for example, the outer circumferential surface of the protective member 60 to the outer circumferential surface of the corrugated tube 40. The tape member 65A has, for example, an overlappingly wound structure. The tape member 65A is wrapped around the outer circumference of the end portion of the protective member 60, for example, so as to maintain the cylindrical state of the protective member 60.
[0144] The tape member 66A is wrapped around, for example, the outer circumferential surface of the longitudinal end portion of the protective member 60 and the outer circumferential surface of the corrugated tube 50 exposed from the protective member 60. The tape member 66A is wrapped continuously from, for example, the outer circumferential surface of the protective member 60 to the outer circumferential surface of the corrugated tube 50. The tape member 66A has, for example, an overlappingly wound structure. The tape member 66A is wrapped around the outer circumference of the end portion of the protective member 60, for example, so as to maintain the cylindrical state of the protective member 60.
[0145] · It can also make Figure 6 The protective member 60 shown in FIG. 1 is provided with an adhesive layer or a pasting layer on one side. For example, an adhesive layer or a pasting layer may be provided on one side of the end portion 69 of the protective member 60. According to this configuration, when the end portion 68 and the end portion 69 of the protective member 60 overlap, the end portion 69 can be adhered to the end portion 68 by the adhesive layer or the pasting layer. Figure 5 ) in the stage before fixation, the protection member 60 can be appropriately suppressed from returning to the sheet state.
[0146] As the material of the protective member 60 of the above-mentioned embodiment, for example, a material having better impact resistance and cushioning properties than the bellows 40 and 50 can be used. For example, as the material of the protective member 60, a material having better sound absorption properties than the bellows 40 and 50 can be used. As the material of such a protective member 60, for example, a porous material can be used. As the material of the protective member 60, for example, a foamed resin can be used. The bubble structure in the foamed resin can be either a continuous bubble structure or an independent bubble structure. As the material of the protective member 60, for example, foamed polyurethane, foamed polyethylene, foamed ethylene-propylene-diene rubber, etc. can be used. By using the above-mentioned materials as the material of the protective member 60, the protective member 60 can function as a cushioning member.
[0147] This configuration allows the protective member 60, which serves as a buffer member, to be interposed between the electromagnetic wave absorbing members 70A, 70B and their surrounding components, thereby suppressing the generation of abnormal sounds caused by contact between the electromagnetic wave absorbing members 70A, 70B and their surrounding components.
[0148] ·For example Figure 8 As shown, a buffer member 100A may be provided to cover the outer periphery of the electromagnetic wave absorbing member 70A. Alternatively, a buffer member 100B may be provided to cover the outer periphery of the electromagnetic wave absorbing member 70B. As the material for the buffer members 100A and 100B, for example, a material having better impact resistance and cushioning properties than the bellows 40 and 50 may be used. For example, as the material for the buffer members 100A and 100B, a material having better sound absorption properties than the bellows 40 and 50 may be used. As the material for such buffer members 100A and 100B, for example, a porous material may be used. As the material for the buffer members 100A and 100B, for example, a foamed resin may be used. The cell structure in the foamed resin may be either an open cell structure or a closed cell structure. As the material for the buffer members 100A and 100B, for example, foamed polyurethane, foamed polyethylene, foamed ethylene-propylene-diene rubber, etc. may be used.
[0149] The buffer member 100A of this modified example is formed so as to cover the entire outer surface of the electromagnetic wave absorbing member 70A, that is, the entire outer peripheral surface 72A and the entire side surfaces 72B and 72C. The buffer member 100B of this modified example is formed so as to cover the entire outer surface of the electromagnetic wave absorbing member 70B, that is, the entire outer peripheral surface 72A and the entire side surfaces 72B and 72C. In this case, the limiting member 80A is continuously wound, for example, from the outer peripheral surface of the buffer member 100A to the outer peripheral surface of the wire 20A. The limiting member 80B is continuously wound, for example, from the outer peripheral surface of the buffer member 100B to the outer peripheral surface of the wire 20B.
[0150] With this configuration, the buffer members 100A and 100B can be interposed between the electromagnetic wave absorbing members 70A and 70B in the longitudinal direction of the wires 20A and 20B. This prevents direct contact between the electromagnetic wave absorbing members 70A and 70B, thereby preventing damage to the electromagnetic wave absorbing members 70A and 70B due to contact between the electromagnetic wave absorbing members 70A and 70B. Consequently, the electromagnetic wave absorbing members 70A and 70B can be arranged close to each other in the longitudinal direction of the wires 20A and 20B. For example, in the illustrated example, the distance between the electromagnetic wave absorbing members 70A and 70B is set to be shorter than the length of the electromagnetic wave absorbing member 70A.
[0151] ·exist Figure 8 In the modified example shown, the buffer member 100A may be formed so as to cover only the side surface 72C facing the electromagnetic wave absorbing member 70B, among the outer surfaces of the electromagnetic wave absorbing member 70A.
[0152] ·exist Figure 8 In the modified example shown, the buffer member 100B may be formed so as to cover only the side surface 72B facing the electromagnetic wave absorbing member 70A side of the outer surface of the electromagnetic wave absorbing member 70B.
[0153] ·exist Figure 8 In the illustrated modification, the buffer member 100B may be omitted.
[0154] In the above embodiment, the first electric wire member is constituted by only the electric wire 20A, and the second electric wire member is constituted by only the electric wire 20B. Figure 9 As shown, the wire member 25A may be formed of the wire 20A and the covering member 110A surrounding the outer periphery of the wire 20A. Alternatively, the wire member 25B may be formed of the wire 20B and the covering member 110B surrounding the outer periphery of the wire 20B.
[0155] The covering member 110A is formed, for example, to cover the outer periphery of the portion of the electric wire 20A extending through the through-hole 71X of the electromagnetic wave absorbing member 70A. The covering member 110B is formed, for example, to cover the outer periphery of the electric wire 20B extending through the through-hole 71Y of the electromagnetic wave absorbing member 70B. The covering members 110A and 110B are provided, for example, to surround the outer peripheries of the electric wires 20A and 20B, respectively, located between the corrugated tubes 40 and 50. Each covering member 110A and 110B is provided, for example, to surround the outer periphery of each electric wire 20A and 20B throughout the entire circumference. The covering members 110A and 110B are exposed, for example, from both the corrugated tubes 40 and 50.
[0156] The covering member 110A is provided to penetrate the through hole 71X of the electromagnetic wave absorbing member 70A while surrounding the outer periphery of the electric wire 20A. The covering member 110B is provided to penetrate the through hole 71Y of the electromagnetic wave absorbing member 70B while surrounding the outer periphery of the electric wire 20B.
[0157] The outer circumference of the covering members 110A and 110B is, for example, set to be smaller than the inner circumference of the through-holes 71X and 71Y of the electromagnetic wave absorbing members 70A and 70B. The outer circumference of the covering members 110A and 110B is, for example, set to be smaller than the inner circumference of the bellows 40 and 50. Furthermore, the covering members 110A and 110B may be configured such that, for example, one end in the longitudinal direction is housed within the interior space of the bellows 40, and the other end in the longitudinal direction is housed within the interior space of the bellows 50.
[0158] The covering members 110A and 110B are not particularly limited as long as they can cover the outer circumference of the wires 20A and 20B. For example, corrugated tubes, twisted tubes, or tape members can be used as the covering members 110A and 110B. The corrugated tube in this case can be a member having slits extending along the longitudinal direction of the wires 20A and 20B, or a member without slits.
[0159] The limiting member 80A of this modified example is continuously wound, for example, from the outer peripheral surface 72A of the electromagnetic wave absorbing member 70A, through the outer peripheral surface of the coating member 110A, to the outer peripheral surface of the wire 20A. The limiting member 80B of this modified example is continuously wound, for example, from the outer peripheral surface 72A of the electromagnetic wave absorbing member 70B, through the outer peripheral surface of the coating member 110B, to the outer peripheral surface of the wire 20B.
[0160] According to the configuration described above, covering members 110A and 110B are provided to cover the outer circumferences of the wires 20A and 20B, respectively. The wires 20A and 20B, while covered by these covering members 110A and 110B, are passed through the through-holes 71X and 71Y, respectively. This prevents direct contact between the inner circumferences of the through-holes 71X and 71Y and the outer circumferences of the wires 20A and 20B. This effectively prevents damage to the wires 20A and 20B due to contact with the inner circumferences of the through-holes 71X and 71Y.
[0161] ·exist Figure 9In the illustrated modification, the tape member 81 of the restricting member 80A is wound so as to cover the longitudinal ends of the covering member 110A, but this is not limiting. Specifically, in the above modification, the tape member 81 of the restricting member 80A is formed so as to be continuously wound from the outer circumference of the electromagnetic wave absorbing member 70A to the outer circumference of the electric wire 20A, but this is not limiting. For example, the tape member 81 of the restricting member 80A may be wound so as to expose the longitudinal ends of the covering member 110A. In other words, the tape member 81 of the restricting member 80A may be formed so as to be continuously wound from the outer circumference of the electromagnetic wave absorbing member 70A to the outer circumference of the covering member 110A. The tape member 81 of the restricting member 80B may also be similarly modified.
[0162] ·like Figures 10 to 12 As shown, the covering member 110A may be formed into a sheet having slits 111 extending along the longitudinal direction of the electric wire 20A. The covering member 110A of this modification is formed into a cylindrical shape by, for example, wrapping a flexible resin sheet around the circumference of the electric wire 20A.
[0163] like Figure 12 As shown, the covering member 110A has, for example, a second direction (in Figure 12 The covering member 110A includes an end 112 in the second direction (in the circumferential direction of the electric wire 20A), and an end 113 on the opposite side of the end 112 in the second direction. The covering member 110A is formed, for example, by overlapping the end 112 and the end 113 in the radial direction of the electric wire 20A to form a cylindrical shape. The inner circumferential dimension of the covering member 110A can be adjusted to correspond to the outer circumferential dimension of the electric wire 20A, for example, by adjusting the overlap between the end 112 and the end 113. The covering member 110A has elasticity, for example, that allows it to return from a cylindrical state that surrounds the outer circumference of the electric wire 20A to a sheet state that does not surround the outer circumference of the electric wire 20A.
[0164] The covering member 110A is made of a non-conductive resin material. Examples of the resin material include synthetic resins such as polyethylene terephthalate, polyolefin, polyamide, polyester, and ABS resin. For example, a twisted tube can be used as the covering member 110A. The twisted tube is constructed, for example, from a woven fabric made of polyethylene terephthalate or polyester. The twisted tube is constructed, for example, from a woven resin fiber to form a mesh.
[0165] Likewise, the covering member 110B may be formed in a sheet shape having the slits 111 extending along the longitudinal direction of the electric wire 20B.
[0166] With this configuration, the covering member 110A can be formed into a cylindrical shape by overlapping the ends 112 and 113 of the sheet-like covering member 110A, thereby completely surrounding the outer periphery of the wire 20A. This facilitates post-assembly of the covering member 110A onto the wire 20A, thereby improving assembly workability of the wire harness 10.
[0167] In the above embodiment, the restricting member 80A is formed by wrapping the tape member 81 around the entire outer circumference of the electromagnetic wave absorbing member 70A. However, this is not limiting. For example, the restricting member 80A may be formed by wrapping the tape member 81 around only a portion of the outer circumference of the electromagnetic wave absorbing member 70A.
[0168] For example Figure 10 As shown, the restricting member 80A of this modified example integrally includes, for example, eight regions A1 to A8. Region A1 is where the tape member 81 is wrapped around the portion of the wire member 25A extending from the through-hole 71X of the electromagnetic wave absorbing member 70A toward the corrugated tube 50. In Region A1, for example, the tape member 81 is wrapped multiple times around the entire circumference of the covering member 110A surrounding the outer periphery of the wire 20A. The tape member 81 in Region A1, for example, has the function of preventing the covering member 110A from returning to a sheet state, that is, maintaining the covering member 110A in a cylindrical state. The tape member 81 in Region A1, for example, has an overlapping wound structure.
[0169] like Figure 11 As shown, region A2 is connected to region A1. Region A2 is, for example, a region where the tape member 81 extends, in a tensioned state, from the outer peripheral surface of the covering member 110A toward the outer peripheral surface 72A of the magnetic core 72 of the electromagnetic wave absorbing member 70A. In region A2, the tape member 81 is positioned so as to span between the outer peripheral surface of the covering member 110A and the outer peripheral surface 72A of the magnetic core 72. In region A2, the tape member 81 is positioned, for example, so as to face the side surface 72C of the magnetic core 72.
[0170] Region A3 is connected to region A2. Region A3 is, for example, an area where tape member 81 is wrapped around outer circumferential surface 72A of magnetic core 72. In region A3, tape member 81, for example, covers a portion of outer circumferential surface 72A of magnetic core 72. In region A3, tape member 81 is, for example, adhered to a portion of outer circumferential surface 72A of magnetic core 72.
[0171] like Figure 10As shown, region A4 is connected to region A3. Region A4, for example, is where the tape member 81 extends, in a tensioned state, from the outer circumferential surface 72A of the magnetic core 72 toward the outer circumferential surface of the covering member 110A, which extends from the through-hole 71X of the electromagnetic wave absorbing member 70A toward the bellows 40. In region A4, the tape member 81 is positioned so as to span between the outer circumferential surface 72A of the magnetic core 72 and the outer circumferential surface of the covering member 110A. In region A4, the tape member 81 is positioned so as to face the side surface 72B of the magnetic core 72, for example.
[0172] The tape members 81 in the regions A2 to A4 are formed to extend obliquely so as to intersect the circumferential direction of the magnetic core 72 and the longitudinal direction of the electric wires 20A, for example. Figure 10 In the illustrated tape member 81 , the starting end of the region A2 is located on the upper side in the figure, and the tape member extends obliquely downward in the figure as it moves from the starting end of the region A2 toward the terminal end of the region A4 .
[0173] Area A5 is connected to area A4. Area A5 is where the tape member 81 is wrapped around the portion of the wire member 25A extending from the through-hole 71X of the electromagnetic wave absorbing member 70A toward the corrugated tube 40. In area A5, for example, the tape member 81 is wrapped multiple times around the entire circumference of the covering member 110A surrounding the outer periphery of the wire 20A. The tape member 81 in area A5, for example, functions to maintain the covering member 110A in a cylindrical state. The tape member 81 in area A5, for example, has an overlapping, wound structure.
[0174] Region A6 is connected to region A5. Region A6 is, for example, an area where tape member 81 extends from the outer peripheral surface of cover member 110A toward outer peripheral surface 72A of magnetic core 72 in a tensioned and stretched state. In region A6, tape member 81 is positioned so as to span between the outer peripheral surface of cover member 110A and outer peripheral surface 72A of magnetic core 72. In region A6, tape member 81 is positioned so as to face, for example, side surface 72B of magnetic core 72.
[0175] Region A7 is connected to region A6. Region A7 is, for example, an area where a tape member 81 is wrapped around the outer circumferential surface 72A of the magnetic core 72. For example, the tape member 81 in region A7 is formed so as to intersect with the tape member 81 in region A3. For example, the tape member 81 in region A7 covers a portion of the outer circumferential surface 72A of the magnetic core 72. For example, the tape member 81 in region A7 is bonded to a portion of the outer circumferential surface 72A of the magnetic core 72 and to a portion of the tape member 81 in region A3.
[0176] Region A8 is connected to region A7. Region A8, for example, is where the tape member 81 extends from the outer peripheral surface 72A of the magnetic core 72 toward region A1 in a tensioned and stretched state. In region A8, the tape member 81 is positioned so as to span between the outer peripheral surface 72A of the magnetic core 72 and the outer peripheral surface of the covering member 110A. In region A8, the tape member 81 is positioned so as to face the side surface 72C of the magnetic core 72, for example.
[0177] The tape members 81 in the regions A6 to A8 are formed, for example, to extend obliquely so as to intersect the circumferential direction of the magnetic core 72 and the longitudinal direction of the electric wire 20A. The tape members 81 in the regions A6 to A8 are formed, for example, to intersect the tape members 81 in the regions A2 to A4. The tape members 81 in the regions A6 to A8 are formed, for example, to overlap a portion of the tape members 81 in the regions A2 to A4. Figure 10 In the illustrated tape member 81 , the starting end of the region A6 is located on the upper side in the figure, and the tape member 81 extends obliquely downward in the figure as it moves from the starting end of the region A6 toward the terminal end of the region A8 .
[0178] like Figure 11 and Figure 12 As shown, the tape member 81 is formed, for example, so as to be bonded to only a portion 74 of the outer peripheral surface 72A of the magnetic core 72. The tape member 81 is formed, for example, so as to be bonded to only a portion 74 of the outer peripheral surface 72A of the magnetic core 72. The tape member 81 is formed, for example, so as to be bonded to only a portion 74 of the outer peripheral surface 72A of the magnetic core 72. The tape member 81 is formed, for example, so as to be bonded to only a portion 74 of the outer peripheral surface 72A of the magnetic core 72. The tape member 81 is formed, for example, so as to be bonded to only a portion 74 of the outer peripheral surface 72A of the magnetic core 72.
[0179] At this time, if Figure 12As shown, the tape member 81 may be wrapped around the outer circumferential surfaces of the electromagnetic wave absorbing member 70A and the wire member 25A, such that the wire member 25A is disposed within the through-hole 71X of the electromagnetic wave absorbing member 70A, offset toward a portion of the through-hole 71X in the circumferential direction. For example, the wire member 25A contacts the first portion 71A within the through-hole 71X and is separated from the second portion 71B. For example, a portion of the covering member 110A contacts the first portion 71A within the through-hole 71X and is separated from the second portion 71B. Here, the first portion 71A, with which the wire member 25A contacts, is positioned closer to the region 74 of the outer circumferential surface of the electromagnetic wave absorbing member 70A covered by the tape member 81 than the second portion 71B in a direction intersecting the first central axis of the electromagnetic wave absorbing member 70A. The first portion 71A, for example, is the inner circumferential surface of the through-hole 71X corresponding to the region 74 in the circumferential direction of the electromagnetic wave absorbing member 70A. For example, the first portion 71A is a portion of the magnetic core 72 that is located at the same angle as the region 74 of the outer peripheral surface 72A of the magnetic core 72 in the circumferential direction. For example, the first portion 71A is a portion of the inner peripheral surface of the through-hole 71X located on the inner side of the region 74. The tape member 81 of this modified example secures the electromagnetic wave absorbing member 70A to the outer periphery of the wire member 25A, for example, such that the covering member 110A of the wire member 25A contacts the first portion 71A within the through-hole 71X and is biased toward the first portion 71A (region 74). Furthermore, the wire member 25A is biased toward the same direction, that is, toward the region 74, along the entire length of the through-hole 71X in the direction of the first central axis. In other words, the tape member 81 is wrapped around the outer peripheral surfaces of the electromagnetic wave absorbing member 70A and the wire member 25A, such that the wire member 25A is biased toward the same direction along the entire length of the through-hole 71X in the direction of the first central axis.
[0180] According to this configuration, the tape member 81 is formed so as to cover only a portion of the outer peripheral surface 72A of the electromagnetic wave absorbing member 70A in the circumferential direction. This allows the length of the tape member 81 to be shortened compared to, for example, a case where the tape member 81 is formed so as to cover the entire outer peripheral surface 72A of the electromagnetic wave absorbing member 70A in the circumferential direction. Consequently, the manufacturing cost of the wire harness 10 can be reduced. Furthermore, similar to the restricting member 80A, the restricting member 80B can also be modified.
[0181] In the above embodiment, the restriction members 80A and 80B are formed of the tape member 81 , but the present invention is not limited thereto. For example, a metal belt or a resin binding belt may be used as the restriction members 80A and 80B.
[0182] In the above embodiment, the limiting member 80A is provided to secure the electromagnetic wave absorbing member 70A to the electric wire 20A, but the present invention is not limited thereto. For example, the limiting member 80A is not particularly limited in shape or position as long as it is configured to limit the relative movement of the electromagnetic wave absorbing member 70A with respect to the electric wire 20A in the longitudinal direction of the electric wire 20A. In the above embodiment, the limiting member 80A is formed to surround the outer circumference of the electromagnetic wave absorbing member 70A, but it may also be formed so as not to surround the outer circumference of the electromagnetic wave absorbing member 70A. For example, the limiting member 80A may be provided adjacent to the electromagnetic wave absorbing member 70A in the longitudinal direction of the electric wire 20A.
[0183] In addition, similar to the restriction member 80A, the restriction member 80B can also be changed.
[0184] In the above embodiment, the first exterior member is embodied as a bellows 40, and the second exterior member is embodied as a bellows 50, but the present invention is not limited thereto. For example, a hard resin tube, a metal tube, or a rubber waterproof cover can be used as the first and second exterior members. For example, the first and second exterior members may be embodied as exterior members of different types.
[0185] In the above embodiment, the exterior member 30 is embodied as a structure including the bellows 40 and 50 and the protection member 60 , but the present invention is not limited thereto.
[0186] For example Figure 13 As shown, the bellows 50 may be omitted from the exterior member 30, and the exterior member 30 may be specifically configured to include the bellows 40 and the protective member 60. In this modified example, electromagnetic wave absorbing members 70A and 70B are provided between the bellows 40 and the connector C1. The protective member 60 is provided, for example, to cover the outer peripheries of the wires 20A and 20B and the electromagnetic wave absorbing members 70A and 70B that are exposed from the bellows 40. The protective member 60 is provided, for example, to bridge the outer periphery of the bellows 40 and the outer periphery of the connector C1. For example, the protective member 60 is engaged with the outer periphery of a connector housing (not shown) included in the connector C1.
[0187] The braided member 90 of the above embodiment may be replaced with another electromagnetic shielding member such as metal foil.
[0188] The braiding member 90 in the above embodiment may be omitted.
[0189] The electric wires 20A and 20B in the above-mentioned embodiment may be replaced with shielded electric wires.
[0190] The electric wires 20A and 20B in the above embodiment may be replaced with low-voltage electric wires.
[0191] In the above embodiment, the electromagnetic wave absorbing members 70A and 70B are composed only of the magnetic core 72 , but the present invention is not limited thereto. For example, the electromagnetic wave absorbing members 70A and 70B may include the magnetic core 72 and a housing for housing the magnetic core 72 .
[0192] The number and placement of the electromagnetic wave absorbing members 70A and 70B in the above-described embodiment are not particularly limited. For example, two or more electromagnetic wave absorbing members 70A and 70B may be provided for each of the electrical wires 20A and 20B. For example, the electromagnetic wave absorbing members 70A and 70B may be provided outside the vehicle interior, which is a waterproof area, or inside the vehicle interior, which is a non-waterproof area.
[0193] In the above embodiment, two wires 20 are housed within the exterior member 30 . However, this is not a limitation, and the number of wires 20 can be varied depending on the specifications of the vehicle V. For example, the number of wires 20 housed within the exterior member 30 may be one, or three or more. For example, the exterior member 30 may also include additional low-voltage wires connecting a low-voltage battery and various low-voltage devices (e.g., lights, vehicle audio, etc.).
[0194] The arrangement relationship between the inverter 11 and the high-voltage battery 12 in the vehicle V is not limited to the above-described embodiment, and may be appropriately changed according to the vehicle configuration.
[0195] For example Figure 14 As shown, it can also be embodied as a wire harness 10 in which the high-voltage battery 12 is arranged on substantially the entire floor of the vehicle V and the high-voltage battery 12 and the inverter 11 are electrically connected.
[0196] In the above embodiment, the inverter 11 and high-voltage battery 12 are used as the electrical devices connected by the wiring harness 10, but this is not limiting. For example, wires connecting the inverter 11 and the electric motor driving the wheels may also be used. In other words, any structure that electrically connects electrical devices mounted on the vehicle V is applicable.
[0197] ·For example Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 As in the embodiment of FIG. 1 , when the electromagnetic wave absorbing members 70A and 70B are viewed in the longitudinal direction of the wire harness 10, the central axis of one of the electric wires 20A may be fixed eccentrically relative to the central axis of the corresponding electromagnetic wave absorbing member 70A. In one example, the central axis of the other electric wire 20B may be fixed eccentrically relative to the central axis of the corresponding electromagnetic wave absorbing member 70B ( Figure 3 、6 , 8 to 10, 13), in another example, the central axis of the other electric wire 20B may be substantially concentric with the central axis of the corresponding electromagnetic wave absorbing member 70B ( Figure 4 、 Figure 7 ).
[0198] ·like Figure 3 and Figure 4 As in the embodiment, when the electromagnetic wave absorbing components 70A and 70B are viewed from the length direction of the wiring harness 10, the distance between the center axis of one electromagnetic wave absorbing component 70A and the center axis of the other electromagnetic wave absorbing component 70B can also be smaller than the distance between the center axis of one wire 20A and the center axis of the other wire 20B.
[0199] ·like Figure 6 and Figure 7 As in the embodiment, when the electromagnetic wave absorbing components 70A and 70B are viewed from the length direction of the wiring harness 10, the distance between the center axis of one electromagnetic wave absorbing component 70A and the center axis of the other electromagnetic wave absorbing component 70B can also be greater than the distance between the center axis of one wire 20A and the center axis of the other wire 20B.
[0200] As in the illustrated embodiment, the electromagnetic wave absorbing member 70A may not overlap with the electromagnetic wave absorbing member 70B in the axial direction of the wire harness 10, or the electromagnetic wave absorbing member 70A may be separated from the electromagnetic wave absorbing member 70B in the axial direction of the wire harness 10 by a space. Figure 2 、 5 As shown in Figures 8 to 10 and 13, the wire harness 10 can include a multiple-length portion of wires, which is a length range in which the wires 20A and 20B are fixed side by side. The electromagnetic wave absorbing members 70A and 70B may partially overlap in the radial direction so that the maximum thickness (maximum diameter) of the wire harness 10 in this multiple-length portion of wires is smaller than the sum of the maximum thicknesses of the electromagnetic wave absorbing members 70A and 70B.
[0201] ·like Figure 2 、 5 As in the embodiments 8 to 10, the open terminal portion of the first exterior member 40 may be spaced apart from the open terminal portion of the second exterior member 50, and the predetermined axial position of the electric wire 20A may be positioned in the axial gap formed between the open terminal portions of the first exterior member 40 and the open terminal portions of the second exterior member 50. The open terminal portion of the first exterior member 40 may face the side surface 72B of the two electromagnetic wave absorbing members 70A and 70B, and the open terminal portion of the second exterior member 50 may face the side surface 72C of the two electromagnetic wave absorbing members 70A and 70B.
[0202] ·like Figure 13 As in the embodiment of FIG. 1 , the open terminal end of the first exterior member 40 may be spaced apart from the end of the connector C1, and the predetermined axial position of the electric wire 20A may be positioned in the axial gap formed between the open terminal end of the first exterior member 40 and the end of the connector C1. The open terminal end of the first exterior member 40 may face the side surface 72B of the electromagnetic wave absorbing members 70A and 70B, and the end of the connector C1 may face the side surface 72C of the electromagnetic wave absorbing members 70A and 70B.
[0203] As shown in the figure, the protection member 60 may be configured by the opening end portion of the first exterior member 40 and the opening end portion of the second exterior member 50 ( Figure 2 、 5 , 8 to 10) or the end of connector C1 ( Figure 13 ) The opening terminal portion of the first exterior member 40 and the opening terminal portion of the second exterior member 50 are separated by an axial gap therebetween ( Figure 2 、 5 , 8 to 10) or the end of connector C1 ( Figure 13 ) connected to the continuous cylindrical body. The protective member 60 may also have: a first cylindrical end portion configured to be assembled on the radial outer surface of the opening terminal portion of the first outer member 40; a second cylindrical end portion configured to be assembled on the radial outer surface of the opening terminal portion of the second outer member 50 ( Figure 2 、 5 , 8 to 10) or the radial outer surface of the end of the connector C1 ( Figure 13 ); and a cylindrical middle portion extending between the first cylindrical end portion and the second cylindrical end portion. In one example, the cylindrical middle portion may be configured so that the axial gap is not exposed to the outside of the wiring harness 10. In the illustrated embodiment, the cylindrical middle portion of the protective member 60 may be configured so that the opening terminal portion ( Figure 2 、 5 , 8 to 10) or the end of connector C1 ( Figure 13 ) and the entire electromagnetic wave absorbing members 70A and 70B between them, and the exposed portion of the braided member 90 that is not covered by the first exterior member 40 and the second exterior member 50 or the connector C1.
[0204] The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present invention is defined by the claims rather than the above, and is intended to include all modifications within the meaning and scope equivalent to the claims.
[0205] Description of Reference Numerals
[0206] C1 connector
[0207] V Vehicle
[0208] 10 Wiring Harness
[0209] 11 Inverter
[0210] 12 High-voltage batteries
[0211] 20 wires
[0212] 20A wire (first wire)
[0213] 20B wire (second wire)
[0214] 21 core wire
[0215] 22 Insulation coating
[0216] 25A wire assembly (first wire assembly)
[0217] 25B Wire member (second wire member)
[0218] 30 Exterior components
[0219] 40 Bellows (1st exterior component)
[0220] 41 annular convex portion
[0221] 42 annular recess
[0222] 50 Bellows (Second exterior component)
[0223] 51 annular convex portion
[0224] 52 annular recess
[0225] 60 protective components
[0226] 61 Connecting tube
[0227] 61A lip
[0228] 62 Connecting tube
[0229] 62A lip
[0230] 63 Main body
[0231] 65 Connecting members
[0232] 65A tape component
[0233] 66 Connecting members
[0234] 66A Tape Component
[0235] 67 Slit
[0236] 68 end
[0237] 69 end
[0238] 70A electromagnetic wave absorbing member (first electromagnetic wave absorbing member)
[0239] 70B electromagnetic wave absorbing member (second electromagnetic wave absorbing member)
[0240] 71A Part 1
[0241] 71B Part 2
[0242] 71C Part 3
[0243] 71D Part 4
[0244] 71X through hole (first through hole)
[0245] 71Y through hole (second through hole)
[0246] 72 magnetic core
[0247] 72A outer surface
[0248] 72B side
[0249] 72C side view
[0250] 74 areas
[0251] 80A limiting member (first limiting member)
[0252] 80B Limiting member (second limiting member)
[0253] 81 tape components
[0254] Areas A1-A8
[0255] 90 braided component (electromagnetic shielding component)
[0256] 100A buffer component
[0257] 100B Buffer component
[0258] 110A Covering member (first covering member)
[0259] 110B Covering member (second covering member)
[0260] 111 Slit
[0261] 112 end
[0262] 113 end
Claims
1. A wiring harness comprising: a first electric wire member comprising a first electric wire; a first annular electromagnetic wave absorbing member having a first through hole through which the first electric wire member passes; a first limiting member for limiting relative movement of the first electromagnetic wave absorbing member with respect to the first electric wire member in a longitudinal direction of the first electric wire member; a second electric wire member comprising a second electric wire; a second annular electromagnetic wave absorbing member having a second through hole through which the second electric wire member passes; as well as The second restriction member restricts relative movement of the second electromagnetic wave absorbing member with respect to the second electric wire member in the longitudinal direction of the second electric wire member, wherein: The first electromagnetic wave absorbing member is provided so as to overlap a portion of the second electromagnetic wave absorbing member when viewed from above in the direction of a first central axis extending from the central axis of the first through hole. The inner peripheral surface of the first through hole faces the outer peripheral surface of the first wire member. When the first electromagnetic wave absorbing member is viewed along the central axis of the first through hole, the inner peripheral surface of the first through hole includes a first portion and a second portion arranged at a position point-symmetrical to the first portion with respect to the central axis of the first through hole. The first portion is a portion arranged at a position farther from the second electric wire member than the second portion in a direction intersecting the first central axis direction. The first limiting member fixes the first electromagnetic wave absorbing member to the first electric wire member in such a manner that the first electric wire member contacts the first portion and is separated from the second portion. The inner peripheral surface of the second through hole faces the outer peripheral surface of the second electric wire member. When the second electromagnetic wave absorbing member is viewed along the central axis of the second through hole, the inner peripheral surface of the second through hole includes a third portion and a fourth portion arranged at a position point-symmetrical to the third portion with respect to the central axis of the second through hole. The third portion is a portion arranged at a position farther from the first electric wire member than the fourth portion in a direction intersecting the second central axis direction in which the central axis of the second through hole extends. The second restriction member fixes the second electromagnetic wave absorbing member to the second electric wire member so that the second electric wire member contacts the third portion and is separated from the fourth portion.
2. A wiring harness having: a first electric wire member comprising a first electric wire; a first annular electromagnetic wave absorbing member having a first through hole through which the first electric wire member passes; a first limiting member for limiting relative movement of the first electromagnetic wave absorbing member with respect to the first electric wire member in a longitudinal direction of the first electric wire member; a second electric wire member comprising a second electric wire; a second annular electromagnetic wave absorbing member having a second through hole through which the second electric wire member passes; as well as The second restriction member restricts relative movement of the second electromagnetic wave absorbing member with respect to the second electric wire member in the longitudinal direction of the second electric wire member, wherein: The first electromagnetic wave absorbing member is provided so as to overlap a portion of the second electromagnetic wave absorbing member when viewed from above in the direction of a first central axis extending from the central axis of the first through hole. The inner peripheral surface of the first through hole faces the outer peripheral surface of the first wire member. When the first electromagnetic wave absorbing member is viewed along the central axis of the first through hole, the inner peripheral surface of the first through hole includes a first portion and a second portion arranged at a position point-symmetrical to the first portion with respect to the central axis of the first through hole. The second portion is a portion arranged closer to the second electric wire member than the first portion in a direction intersecting the first central axis direction. The first limiting member fixes the first electromagnetic wave absorbing member to the first electric wire member in such a manner that the first electric wire member contacts the second portion and is separated from the first portion. The inner peripheral surface of the second through hole faces the outer peripheral surface of the second electric wire member. When the second electromagnetic wave absorbing member is viewed along the central axis of the second through hole, the inner peripheral surface of the second through hole includes a third portion and a fourth portion arranged at a position point-symmetrical to the third portion with respect to the central axis of the second through hole. The fourth portion is a portion arranged closer to the first electric wire member than the third portion in a direction intersecting a second central axis direction in which the central axis of the second through hole extends. The second restriction member fixes the second electromagnetic wave absorbing member to the second electric wire member so that the second electric wire member contacts the fourth portion and is separated from the third portion.
3. The wire harness according to claim 1 or claim 2, wherein: The device further includes an electromagnetic shielding member that surrounds the first electric wire member, the first electromagnetic wave absorbing member, the second electric wire member, and the second electromagnetic wave absorbing member.
4. The wire harness according to claim 1 or claim 2, wherein: The device further includes a buffer member covering a side surface of the first electromagnetic wave absorbing member facing the second electromagnetic wave absorbing member.
5. The wire harness according to claim 1 or claim 2, wherein: Further having: a first exterior member for housing the first electric wire member and the second electric wire member; and The protective member covers outer circumferences of the first electric wire member, the second electric wire member, the first electromagnetic wave absorbing member, and the second electromagnetic wave absorbing member that are exposed from the first exterior member.
6. The wire harness according to claim 1 or claim 2, wherein: The first electric wire member includes the first electric wire and a first covering member covering the outer periphery of the first electric wire. The second electric wire member includes the second electric wire and a second covering member covering the outer periphery of the second electric wire. The first covering member is inserted into the first through hole in a state of covering the outer periphery of the first electric wire. The second covering member is inserted into the second through hole in a state of covering the outer periphery of the second electric wire.
Citation Information
Patent Citations
Wire harness
JP2014130886A
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JP1999298184A
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US20180233263A1