JP6207059B2 - Conductive path - Google Patents

Description

  The present invention relates to a conductive path having a shielding function.

  2. Description of the Related Art Conventionally, for example, as a conductive path connecting an inverter and an electric motor in an electric vehicle, there has been known one provided with a shielding means for reducing electromagnetic noise radiated from an electric wire (see, for example, Patent Document 1). ).

  The conductive path described in Patent Document 1 includes a main shield part made of a metal pipe and a sub shield part that is shorter than the main shield part and can be deformed. The sub shield part has a tubular braided shield (cylindrical braided member), a connection pipe for connecting the braided shield and the main shield part, and a shield shell in which an attachment part for attachment to the inverter is formed. ing. The small-diameter portion of the braided shield is put on the end of the connecting pipe on the inverter side, and is fixed by caulking from the outside. Thereby, the braided shield and the connecting pipe are conducted. On the other hand, the large-diameter portion of the braided shield is put on the cylindrical portion of the shield shell and is fixed by caulking from the outside. Thereby, the braided shield and the shield shell are conducted.

JP 2004-171952 A

  By the way, when an alternating current is generated by switching the switching element of the inverter device between an on state and an off state and the electric motor is driven by PWM (Pulse Width Modulation) control, it is caused by a harmonic component included in the alternating current. There is a possibility that the operation of a control device or the like arranged around the electric wire may be affected by electromagnetic noise from the electric wire to be performed. Therefore, it is conceivable to attach an annular electromagnetic wave absorbing component such as a ferrite core having a larger action of absorbing electromagnetic noise to the electric wire.

  When an electromagnetic wave absorbing component is simply attached to a part of the braided shield of the conductive path described in Patent Document 1 and used in an environment where vibration such as a vehicle is generated, the shield element is caused by the vibration of the heavy electromagnetic wave absorbing component. There is a risk that the connection of the braided shield may be impaired due to disconnection of the wire.

  Accordingly, an object of the present invention is to provide a conductive path that can reduce electromagnetic noise while ensuring connectivity of a braided shield.

In order to solve the above problems, the present invention provides a guide member made of an electric wire, an electric wire holding member that holds the electric wire, and a conductive metal that guides the electric wire led out from an opening of the electric wire holding member. When the braided shield having flexibility is connected to the guide member has covering said wire between said guide member and the wire holding member, a through hole through which the electric wire is formed, from the wire comprising an electromagnetic wave absorbing component that absorbs electromagnetic waves emitted, the said electromagnetic wave absorbing part, the are disposed on the outer peripheral side of the wire between the wire holding member and the guide member, the wire holding member of said guide member The length of the electric wire and the braided shield between the opening end surface formed on the side and the central portion of the electromagnetic wave absorbing component is from the opening end surface of the electric wire holding member to the electromagnetic wave. Providing long conductive path than the wire and the length of the braided shield between the to the center portion of the yield components.

  According to the conductive path and the wire harness according to the present invention, electromagnetic noise can be reduced while ensuring the connectivity of the braided shield.

The conductive path which concerns on the 1st Embodiment of this invention, the inverter connected by a conductive path, and an electric motor are shown, (a) is a general view, (b) is the A section enlarged view of (a). It is the BB sectional view taken on the line of FIG. The 1st electric wire holding | maintenance apparatus is shown, (a) is an external view, (b) is an exploded view. It is sectional drawing of the conductive path in the peripheral part of an electromagnetic wave absorption component and a fixing member. It is a disassembled perspective view of an electromagnetic wave absorption component. It is an enlarged view of the electromagnetic wave absorption component in FIG. 1 and its peripheral part. It is sectional drawing in the peripheral part of the electromagnetic path which shows the electrically conductive path which concerns on the modification of this invention, and an electromagnetic wave absorption component and a fixing member. It is sectional drawing which showed the electrically conductive path which concerns on the 2nd Embodiment of this invention, and followed the extending | stretching direction of the electric wire in a 1st electric wire holding device.

[First Embodiment]
1A and 1B show a conductive path according to a first embodiment of the present invention, and an inverter and an electric motor connected by the conductive path. FIG. 1A is an overall view, and FIG. FIG. 2 is a cross-sectional view taken along line BB in FIG.

(Configuration of conductive path 1)
The conductive path 1 is mounted on a vehicle, for example, and supplies a PWM (Pulse Width Modulation) -controlled current output from an inverter 91 to an electric motor 92 as a driving source for traveling the vehicle. This current includes harmonic components due to switching of a switching element such as a power transistor.

  The conductive path 1 is provided with a first wire holding device 1a fixed to the housing of the inverter 91 at one end, and a second wire holding device 1b fixed to the housing of the electric motor 92 at the other end. Is provided. The conductive path 1 includes a plurality of (three) electric wires (first to third electric wires 11 to 13) for supplying a three-phase alternating current of U phase, V phase, and W phase to the electric motor 92; A pipe 3 as a guide member for guiding the first to third electric wires 11 to 13 derived from the first electric wire holding device 1a and the second electric wire holding device 1b, respectively, and the first to third electric wires 11 to 13 A cylindrical braided shield 10 that covers the electromagnetic wave, and an electromagnetic wave absorbing component 2 that absorbs electromagnetic waves radiated from the first to third electric wires 11 to 13. The electromagnetic wave absorbing component 2 is moved in the direction along the first to third electric wires 11 to 13 and rotated with respect to the first to third electric wires 11 to 13 by the fixing member 20 formed by winding the resin tape. It is regulated.

  As shown in FIG. 2, the first electric wire 11 is an insulated wire having a center conductor 111 made of a highly conductive metal such as copper and an insulator 112 covering the outer periphery of the center conductor 111. Similarly, the second electric wire 12 is an insulated wire having a center conductor 121 and an insulator 122 covering the outer periphery of the center conductor 121, and the third electric wire 13 covers the outer periphery of the center conductor 131 and the center conductor 131. It is an insulated wire which has the insulator 132 to perform. The first to third electric wires 11 to 13 are bundled together and a part thereof is accommodated in the pipe 3.

  The braided shield 10 is composed of a plurality of shield wires 100 made of, for example, tin plated with copper. In this embodiment, as shown in FIG. 1 (b), six shield strands 100 are made into one strand bundle, and the strand bundles are crossed in an X shape so as to be knitted. A braided shield 10 having the property is formed. The braided shield 10 can be expanded or contracted by changing the size of the mesh by, for example, manual work. In the present embodiment, the braided shield 10 is used in a state in which a part thereof is loosened by expanding the inner diameter. The braided shield 10 covers the first to third electric wires 11 to 13 between the first electric wire holding device 1a and the pipe 3 and between the second electric wire holding device 1b and the pipe 3, respectively.

  The pipe 3 is made of a conductive metal and is formed in a cylindrical shape having openings (first opening 3a and second opening 3b) at both ends. The first opening 3a opens toward the first electric wire holding device 1a, and the second opening 3b opens toward the second electric wire holding device 1b.

  As shown in FIG. 2, a braided shield is provided between the first metal band 31 and the outer peripheral surface of the pipe 3 at the end of the pipe 3 on the first opening 3 a side (first electric wire holding device 1 a side). 10 are arranged. By brazing the first metal band 31 from the outer periphery of the pipe 3, the braided shield 10 provided on the first electric wire holding device 1a side and the pipe 3 can be electrically connected. At this time, the braided shield 10 is connected to the pipe 3 in a relaxed state.

  Similarly, at the end of the pipe 3 on the second opening 3b side (second electric wire holding device 1b side), a second metal band 32 sandwiches the braided shield 10 between the pipe 3 and the outer peripheral surface. Has been placed. By brazing the second metal band 32 from the outer periphery of the pipe 3, the braided shield 10 provided on the second electric wire holding device 1b side and the pipe 3 can be conducted.

  Since the 1st electric wire holding device 1a and the 2nd electric wire holding device 1b are comprised similarly, respectively, it demonstrates in detail below taking the 1st electric wire holding device 1a as an example.

(Configuration of the first electric wire holding device 1a)
FIG. 3 shows the first electric wire holding device 1a, (a) is an external view, and (b) is an exploded view.

  The first electric wire holding device 1a includes a resin electric wire holding member 5 that holds the first to third electric wires 11 to 13, and a shield shell 4 made of a conductive metal that houses a part of the electric wire holding member 5. A seal holding member 6 connected to the electric wire holding member 5 and holding the annular seal member 60, an annular member 7 disposed on the outer periphery of the braided shield 10, and a belt-like fastening member 8.

  The first connection terminal 110 is connected to the distal end portion of the first electric wire 11 by, for example, crimping. Similarly, the second connection terminal 120 is connected to the distal end portion of the second electric wire 12, and the third connection terminal 130 is connected to the distal end portion of the third electric wire 13.

  The shield shell 4 integrally includes a cylindrical accommodating portion 41 that accommodates a part including the opening 5a of the electric wire holding member 5 and a flange portion 42 that is fixed to the casing of the inverter 91 (see FIG. 1). ing. A bolt insertion hole (not shown) is formed in the flange portion 42, and the shield shell 4 is fixed to the grounded casing of the inverter 91 by a bolt inserted through the bolt insertion hole.

  The electric wire holding member 5 has a plurality of (three) insertion holes through which the first to third electric wires 11 to 13 are inserted, and a plurality (three) from which the first to third electric wires 11 to 13 are led out. The opening 5a is open toward the pipe 3 side. The electric wire holding member 5 is fixed to the accommodating portion 41 of the shield shell 4 by, for example, press fitting. The seal member 60 held by the seal holding member 6 seals between the seal holding member 6 and the inner surface of a mounting hole (not shown) formed in the casing of the inverter 91.

  The annular member 7 is, for example, acetate cloth tape, and is wound around the outer periphery of the braided shield 10 in a ring shape a plurality of times with the braided shield 10 sandwiched between the housing part 41 of the shield shell 4. The fastening member 8 is made of, for example, a metal such as stainless steel, and is disposed on the outer peripheral side of the annular member 7 to crimp the annular member 7 and the braided shield 10.

  One end of the braided shield 10 is crimped by a first metal band 31 provided on the pipe 3 so that the braided shield 10 can be electrically connected to the pipe 3, and the other end is clamped by the clamping member 8 of the first electric wire holding device 1a. By being tightened, the shield shell 4 can be electrically connected.

(Configuration of electromagnetic wave absorbing component 2)
FIG. 4 is a cross-sectional view of the conductive path 1 in the periphery of the electromagnetic wave absorbing component 2 and the fixing member 20. In FIG. 4, the electromagnetic wave absorbing component 2, the fixing member 20, and the braided shield 10 are cut along the axial direction of the conductive path 1, and first to third electric wires 11 to 13 are shown therein. FIG. 5 is an exploded perspective view of the electromagnetic wave absorbing component 2.

  The electromagnetic wave absorbing component 2 includes a first magnetic core 21, a second magnetic core 22, a first rubber member 23, and a second rubber member 24. A through hole 20 a through which the first to third electric wires 11 to 13 are inserted all at once is formed at the center of the electromagnetic wave absorbing component 2. The through hole 20 a is formed at the through hole 21 a formed at the center of the first magnetic core 21, the through hole 22 a formed at the center of the second magnetic core 22, and the center of the first rubber member 23. It is formed by coupling of the formed through holes 23a.

  As the first magnetic core 21 and the second magnetic core 22, a high magnetic permeability annular core member such as a ferrite core, an amorphous core, or a permalloy core can be used. In the present embodiment, the first magnetic core 21 and the second magnetic core 22 are made of soft ferrite exhibiting soft magnetism (for example, manganese zinc ferrite, nickel zinc ferrite, copper zinc ferrite, etc.). In addition, hexagonal ferrite (hard ferrite), garnet ferrite, or cobalt ferrite can be used. The first magnetic core 21 and the second magnetic core 22 are arranged in parallel along the axial direction of the conductive path 1. The first magnetic core 21 may be formed as an annular member, and may be formed in an annular shape by combining a pair of members having a semicircular cross section, for example. The same applies to the second magnetic core 22.

  The first magnetic core 21 and the second magnetic core 22 absorb electromagnetic waves (electromagnetic noise) radiated from the first to third electric wires 11 to 13, and the energy of the electromagnetic waves is converted into mechanical energy such as vibrations. Convert to heat energy. Thereby, the bad influence which the electromagnetic waves radiated | emitted from the conductive path 1 exert on the information processing apparatus etc. which were arrange | positioned around is reduced.

  The first rubber member 23 is an annular plate-like member sandwiched between the first magnetic core 21 and the second magnetic core 22, and electromagnetic waves of the first magnetic core 21 and the second magnetic core 22. It suppresses the wear caused by the vibration caused by the absorption of the vehicle and the vibration of the vehicle. The second rubber member 24 is disposed on the outer peripheral side of the first magnetic core 21 and the second magnetic core 22 with its inner peripheral surface facing the outer peripheral surfaces of the first magnetic core 21 and the second magnetic core 22. It is the made cylindrical member.

  The first rubber member 23 and the second rubber member 24 are integrated with the first magnetic core 21 and the second magnetic core 22 by adhesion, for example. The first rubber member 23 and the second rubber member 24 function as a cushioning material having higher elasticity than the first magnetic core 21 and the second magnetic core 22.

  The fixing member 20 regulates the movement of the electromagnetic wave absorbing component 2 in the insertion direction of the first to third electric wires 11 to 13 in the through hole 20a. The fixing member 20 also restricts the rotation of the electromagnetic wave absorbing component 2 with respect to the first to third electric wires 11 to 13.

  The fixing member 20 is formed by winding one resin tape around the first to fifth regions 201 to 205 shown in FIG. In the present embodiment, the braided shield 10 is interposed between the first to third electric wires 11 to 13 and the inner surface of the through hole 20a of the electromagnetic wave absorbing component 2. More specifically, the braided shield 10 is inserted through the through hole 20a of the electromagnetic wave absorbing component 2 together with the first to third electric wires 11 to 13, and the resin in the first region 201 and the fifth region 205 of the fixing member 20 is used. The tape is wound in contact with the outer periphery of the braided shield 10. As shown in FIG. 4, the electromagnetic wave absorbing component 2 bundles the first to third electric wires 11 to 13 by inserting the first to third electric wires 11 to 13 through the through hole 20 a.

  FIG. 6 is an enlarged view of the electromagnetic wave absorbing component 2 and its peripheral portion in FIG. In addition, in FIG. 6, the electric wire holding member 5 is shown with a broken line.

The electromagnetic wave absorbing component 2 is disposed on the outer peripheral side of the first to third electric wires 11 to 13 and the braided shield 10 and is located closer to the first electric wire holding device 1a side. More specifically, the length L2 of the first to third electric wires 11 to 13 and the braided shield 10 between the first opening end surface 31a of the pipe 3 and the central portion of the electromagnetic wave absorbing component ₂ is the electric wire holding. It is longer than the length L ₁ of the first to third electric wires 11 to 13 and the braided shield 10 between the opening end surface 50 a of the member 5 and the central portion of the electromagnetic wave absorbing component 2. Here, the central portion of the electromagnetic wave absorbing component 2 is a portion in the electromagnetic wave absorbing component 2 where the distance from the end surface 2a on the first wire holding device 1a side is equal to the distance from the end surface 2b on the pipe 3 side. It is.

(Operation and effect of the first embodiment)
According to the first embodiment described above, the following operations and effects can be obtained.

(1) The electromagnetic wave absorbing component 2 is disposed closer to the first electric wire holding device 1a than the connection portion (the first metal band 31) between the pipe 3 and the braided shield 10. That is, the length L ₂ of the first to third electric wires 11 to 13 and the braided shield 10 between the first opening end surface 31 a of the pipe 3 and the central portion of the electromagnetic wave absorbing component ₂ is the opening of the electric wire holding member 5. longer than the length _{L 1} of the first to third electrical wires 11 to 13 and the braided shield 10 in between the end face 50a to the center portion of the electromagnetic wave absorbing component 2, it is shorter than the length _{L 1} length _{L 2} Compared with the case, even if the vibration of the electric motor 92 or the vibration accompanying the traveling of the vehicle is transmitted to the pipe 3 and the pipe 3 vibrates in the direction intersecting the axial direction, the vibration is first over a relatively long distance. To be absorbed by the third electric wires 11 to 13 and the braided shield 10. Thereby, the vibration of the direction which cross | intersects the axial direction of the electromagnetic wave absorption component 2 is suppressed, and the tensile force added to the connection part of the pipe 3 and the braided shield 10 is reduced. Therefore, disconnection of the shield strand 100 can be suppressed, and the connectivity between the pipe 3 and the braided shield 10 can be ensured.

(2) Since the braided shield 10 is connected to the pipe 3 in a relaxed state, the tensile force applied to the connection portion between the pipe 3 and the braided shield 10 is further reduced. Therefore, the connectivity between the braided shield 10 and the pipe 3 becomes more reliable.

(3) Since the pipe 3 is made of an electrically conductive metal, it exhibits a shielding function and can avoid interference of foreign matters from the outside with respect to the first to third electric wires 11 to 13.

(4) Since the electromagnetic wave absorbing component 2 includes the second rubber member 24 disposed on the outer peripheral side of the first magnetic core 21 and the second magnetic core 22, the electromagnetic wave absorbing component 2 extends in the axial direction of the conductive path 1. When vibrating in the intersecting direction, it is possible to avoid the corners at the axial end portions of the outer peripheral surfaces of the first magnetic core 21 and the second magnetic core 22 from hitting the fixing member 20 (resin tape). Thereby, the tear of the resin tape which comprises the fixing member 20 can be suppressed, and the durability of the fixing member 20 is improved.

(5) The electromagnetic wave absorbing component 2 has the through-hole 20a through which the first to third electric wires 11 to 13 are inserted in a lump and bundles the first to third electric wires 11 to 13, so that the first The electromagnetic wave absorbing component 2 can be mounted without leaving an interval between the third electric wires 11 to 13. Thereby, the handling of the 1st-3rd electric wires 11-13 becomes good.

  Further, the conductive path 1 according to the first embodiment can be implemented with the following modifications, for example.

(Modification)
FIG. 7 is a cross-sectional view of the periphery of the electromagnetic wave absorbing component 2 and the fixing member 20 showing the conductive path 1A according to a modification of the present invention. In this modification, components having the same functions as those described in the first embodiment are denoted by common reference numerals, and redundant description thereof is omitted.

  In the conductive path 1 according to the first embodiment, the first to third electric wires 11 to 13 and the braided shield 10 are inserted through the through-hole 20a of the electromagnetic wave absorbing component 2, but the conductive path according to this modification example. In 1A, the braided shield 10 covers the outer peripheral sides of the first to third electric wires 11 to 13 and the electromagnetic wave absorbing component 2, and the fixing member 20 is disposed outside the braided shield 10.

  In this modification, the resin tape in the first region 201 and the fifth region 205 of the fixing member 20 absorbs electromagnetic waves on the outer peripheral side of the first to third electric wires 11 to 13 exposed from the through hole 20a of the electromagnetic wave absorbing component 2. It is wound around the outer periphery of the braided shield 10 on both sides of the component 2 (the first electric wire holding device 1a side and the second electric wire holding device 1b side). In addition, the resin tape in the third region 203 of the fixing member 20 is wound around the outer periphery of the electromagnetic wave absorbing component 2 in contact with the outer periphery of the braided shield 10.

  Also according to this modification, the same actions and effects as the actions and effects (1) to (4) described in the first embodiment can be obtained. Further, the second rubber member 24 of the electromagnetic wave absorbing component 2 can avoid corner portions on the outer peripheral surfaces of the first magnetic core 21 and the second magnetic core 22 from hitting the braided shield 10. Therefore, the durability of the braided shield 10 can be further enhanced. Furthermore, since the first magnetic core 21 and the second magnetic core 22 absorb the electromagnetic waves radiated from the first to third electric wires 11 to 13 without passing through the braided shield 10, the first magnetic core The amount of electromagnetic waves absorbed by 21 and the second magnetic core 22 can be increased.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIG. FIG. 8 shows a conductive path 1B according to the second embodiment of the present invention, and is a cross-sectional view along the extending direction of the first to third electric wires 11 to 13 in the first electric wire holding device 1c. In the present embodiment, components having the same functions as those described in the first embodiment are denoted by common reference numerals, and redundant description thereof is omitted.

  In the conductive path 1 according to the first embodiment, the electromagnetic wave absorbing component 2 is arranged outside the first electric wire holding device 1a. However, the conductive path 1B according to the present embodiment is an electromagnetic wave absorbing component 2A. At least a part is accommodated in the shield shell 4 of the first electric wire holding device 1c.

  The electromagnetic wave absorbing component 2 </ b> A and the electric wire holding member 5 are arranged side by side in the axial direction of the first to third electric wires 11 to 13. In the electromagnetic wave absorbing component 2 </ b> A, one end surface 2 </ b> Aa is in contact with the opening end surface 50 a of the wire holding member 5, and the other end surface 2 </ b> Ab and the outer peripheral surface 2 </ b> Ac are in contact with the inner surface 4 a of the shield shell 4. In the present embodiment, the electromagnetic wave absorbing component 2A is fixed to the shield shell 4 by press fitting. The electromagnetic wave absorbing component 2A may be fixed to the shield shell 4 with an adhesive or the like.

  Also according to the present embodiment, the same operations and effects as the operations and effects (1) to (5) described in the first embodiment can be obtained. Further, since the electromagnetic wave absorbing component 2A is accommodated in the shield shell 4 of the first electric wire holding device 1c, even if the pipe 3 vibrates in the direction intersecting the axial direction, the vibration is first to third. Are absorbed by the electric wires 11 to 13 and the braided shield 10, vibrations transmitted to the electromagnetic wave absorbing component 2 </ b> A can be further reduced.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] Electric wire (first to third electric wires 11 to 13), electric wire holding member (5) for holding the electric wires (first to third electric wires 11 to 13), and the electric wire holding member (5) A guide member (pipe 3) made of a conductive metal member for guiding the electric wires (first to third electric wires 11 to 13) led out from the opening (5a), the electric wire holding member (5) and the A flexible braided shield (10) that covers the electric wires (first to third electric wires 11 to 13) with the guide member (pipe 3), and the electric wires (first to third electric wires 11 to 11). 13) An electromagnetic wave absorbing component (2) that is formed with a through-hole (20a) that penetrates through and absorbs electromagnetic waves radiated from the electric wires (first to third electric wires 11 to 13). (2) is between the wire holding member (5) and the guide member (pipe 3). Open end face (first open end face) which is disposed on the outer peripheral side of the electric wires (first to third electric wires 11 to 13) and formed on the electric wire holding member (5) side of the guide member (pipe 3). The length (L ₂ ) of the electric wires (first to third electric wires 11 to 13) and the braided shield (10) between 31a) and the central portion of the electromagnetic wave absorbing component ( ₂ ) is the electric wire holding Lengths of the electric wires (first to third electric wires 11 to 13) and the braided shield (10) between the opening end face (50a) of the member (5) and the central portion of the electromagnetic wave absorbing component (2) ( Conductive path (1, 1A, 1B) longer than L ₁ ).

[2] The conductive path (1, 1A, 1B) according to [1], wherein the braided shield (10) is connected to the guide member (pipe 3) in a relaxed state.

[3] The braided shield (10) is interposed between the electric wires (first to third electric wires 11 to 13) and an inner surface of the through hole (20a) of the electromagnetic wave absorbing component (2). The conductive path (1) according to [1] or [2].

[4] At least a part of each of the electric wire holding member (5) and the electromagnetic wave absorbing component (2A) is accommodated in a shield shell (4), and the electromagnetic wave absorbing component (2A) and the shield shell (4) Are fixed to each other, the conductive path (1B) according to [1] or [2].

[5] The braided shield (10) covers the outer peripheral side of the electric wires (first to third electric wires 11 to 13) and the electromagnetic wave absorbing component (2, 2A), [1], [2], or The conductive path (1A, 1B) according to any one of [4].

[6] The electromagnetic wave absorbing component (2, 2A) includes an annular magnetic core that absorbs electromagnetic waves, and an annular magnetic core that absorbs electromagnetic waves (the first magnetic core 21 and the second magnetic core 22); It is arranged on the outer peripheral side of the magnetic core (first magnetic core 21 and second magnetic core 22) and has higher elasticity than the magnetic core (first magnetic core 21 and second magnetic core 22). The conductive path (1A, 1B) according to [5], including a buffer material (second rubber member 24).

[7] A plurality of the electric wires (first to third electric wires 11 to 13) are provided, and the electromagnetic wave absorbing component (2, 2A) is provided in the through hole (20a) with the plurality of electric wires (first to third electric wires). The electric wire according to any one of [1] to [7], wherein the plurality of electric wires (first to third electric wires 11 to 13) are bundled by inserting the electric wires 11 to 13). (1, 1A, 1B).

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  The present invention can be appropriately modified and implemented without departing from the spirit of the present invention. For example, in the above embodiment, the case where there are three electric wires (first to third electric wires 11 to 13) of the conductive paths 1, 1A, and 1B has been described. Or 2 or 4 or more may be sufficient.

  Moreover, although the case where the fixing member 20 was formed by wrapping one resin tape was described in the above embodiment, the present invention is not limited to this, and the fixing member 20 may be formed by, for example, a plurality of resin tapes. . Moreover, it is good also considering the clip attached to the 1st-3rd electric wires 11-13 so that the electromagnetic wave absorption component 2 may be pinched | interposed from both sides as the fixing member 20.

  In the above-described embodiment, the electromagnetic wave absorbing component 2A is fixed in a state of being accommodated in the shield shell 4. However, the present invention is not limited to this. For example, the end surface 2Aa of the electromagnetic wave absorbing component 2A is on the opening end surface of the shield shell 4. The electromagnetic wave absorbing component 2 </ b> A and the shield shell 4 may be fixed by the fixing member 20 so as to be in contact with each other outside the shield shell 4.

  Moreover, there is no limitation in particular also in the use of the conductive path 1, 1A, 1B.

DESCRIPTION OF SYMBOLS 1,1A, 1B ... Conductive path, 1a, 1c ... 1st electric wire holding device, 1b ... 2nd electric wire holding device, 2, 2A ... Electromagnetic wave absorption component, 2a, 2Aa ... End surface, 2b, 2Ab ... End surface, 2Ac ... outer peripheral surface, 3 ... pipe (guide member), 4 ... shield shell, 4a ... inner surface, 5 ... electric wire holding member, 5a ... opening, 6 ... seal holding member, 7 ... annular member, 8 ... tightening member, 10 ... Braided shield, 11 ... first electric wire, 12 ... second electric wire, 13 ... third electric wire, 20 ... fixing member, 20a ... through hole, 21 ... first magnetic core, 21a ... through hole, 22 ... first 2 magnetic core, 22a ... through hole, 23 ... first rubber member, 23a ... through hole, 24 ... second rubber member (buffer material), 31 ... first metal band, 31a ... first opening end face, 32 ... 2nd metal band, 41 ... receiving part, 42 ... flange part, 50a ... open end , 60 ... sealing member, 91 ... inverter, 92 ... electric motor, 100 ... shield wire, 110 ... first connection terminal, 120 ... second connection terminal, 130 ... third connection terminal, 111, 121, 131 ... Center conductor, 112, 122, 132 ... Insulator, 201-205 ... First to fifth regions

Claims (6)

Multiple wires,
An electric wire holding member for holding the plurality of electric wires;
A guide member made of a conductive metal for guiding the plurality of electric wires led out from the opening of the electric wire holding member;
A braided shield having flexibility, covering the plurality of electric wires between the electric wire holding member and the guide member and connected to the guide member;
Through-holes that penetrate the plurality of electric wires are formed, and an electromagnetic wave absorbing component that absorbs electromagnetic waves radiated from the plurality of electric wires,
With
The electromagnetic wave absorbing component is spaced apart from the holding member in the extending direction of the plurality of electric wires, and is disposed on the outer peripheral side of the plurality of electric wires between the electric wire holding member and the guide member,
The length of the plurality of electric wires and the braided shield between the opening end surface formed on the electric wire holding member side of the guide member and the central portion of the electromagnetic wave absorbing component is such that the electromagnetic wave extends from the opening end surface of the electric wire holding member. A conductive path that is longer than the length of the plurality of electric wires and the braided shield in the middle of the absorbent part. The braided shield is connected to the guide member in a slack state,
The conductive path according to claim 1. The braided shield is interposed between the plurality of electric wires and the inner surface of the through hole of the electromagnetic wave absorbing component.
The conductive path according to claim 1 or 2. Each of the electric wire holding member and the electromagnetic wave absorbing component is housed at least partially inside a shield shell,
The electromagnetic wave absorbing component and the shield shell are fixed to each other.
The conductive path according to claim 1 or 2. The braided shield covers an outer peripheral side of the plurality of electric wires and the electromagnetic wave absorbing component,
The conductive path according to any one of claims 1, 2, and 4. The electromagnetic wave absorbing component includes an annular magnetic core that absorbs electromagnetic waves, and a buffer material that is disposed on the outer peripheral side of the magnetic core and has higher elasticity than the magnetic core.
The conductive path according to claim 5.

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