JP2017076511A - Connector and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector and a wiring harness which enable the increase in the degree of freedom of wiring layout while reducing electromagnetic noise, and enable the reduction in the number of parts.SOLUTION: A connector 3, which is provided at an end of an electric wire 2, comprises: an insertion hole 71 to run the electric wire 2 through; an inserted member 31 inserted in a fixing hole formed in a fixed member; and an electric wire-holding member 32 placed next to the inserted member 31 along the electric wire 2, serving to hold the electric wire 2, and having a flange part 62 for fixing to the fixed member. The inserted member 31 is provided so as to cover the outer periphery of the electric wire 2, and includes a seal holding member 72 having an inner wall part 78 harder than the electric wire 2, and an annular magnetic material core 8 provided around the inner wall part 78, and made of a nanocrystalline soft magnetic material.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a connector and a wire harness.

  Conventionally, for example, a wire harness that is provided in a vehicle using an electric motor as a drive source and connects an inverter and an electric motor is known. As this type of wire harness, one provided with a braided shield for reducing electromagnetic noise radiated from the wires of the wire harness is known.

  Patent Document 1 discloses a wire harness in which a magnetic core made of a ferrite core or the like is provided in addition to a braided shield to further reduce electromagnetic noise radiated from the wire harness by the magnetic core.

JP 2014-130708 A

  However, the ferrite core used as the magnetic core in Patent Document 1 has a large size and a large mass. Therefore, it is necessary to fix the ferrite core to the vehicle body or the like, and there is a problem that the degree of freedom of the wiring layout of the wire harness is lowered.

  In addition, a dedicated fixing member for fixing the ferrite core to the vehicle body or the like is required, which increases the number of parts and reduces the workability when attaching the wire harness.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a connector and a wire harness that can improve the degree of freedom of layout and reduce the number of components while reducing electromagnetic noise.

  The present invention is a connector provided at an end portion of an electric wire for the purpose of solving the above-described problem, and has an insertion hole through which the electric wire is inserted, and is accommodated in an attachment hole formed in an attached member. A member to be accommodated, and an electric wire holding member that is arranged alongside the wire to be accommodated, holds the electric wire, and has a fixing portion for fixing to the member to be attached. The housing member is provided so as to cover the outer periphery of the electric wire, and the housing member side housing having an inner wall portion harder than the electric wire, and an annular magnetic material made of a nanocrystalline soft magnetic material provided around the inner wall portion A connector comprising: a body core.

  Moreover, this invention provides the wire harness provided with the electric wire and the said connector for the purpose of solving the said subject.

  According to the present invention, it is possible to provide a connector and a wire harness that can improve the degree of freedom of layout and reduce the number of components while reducing electromagnetic noise.

It is a perspective view which shows the external appearance of the wire harness which concerns on one embodiment of this invention. It is the perspective view which abbreviate | omitted the braided shield in FIG. 1A. It is a perspective view of a connector. It is the sectional view on the AA line of FIG. It is a disassembled perspective view of a housing. It is a perspective view of a seal holding member. It is a perspective view of a seal holding member. It is a disassembled perspective view of a seal holding member.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(Description of the overall structure of the wire harness)
FIG. 1A is a perspective view showing an appearance of the wire harness according to the present embodiment, and FIG. 1B is a perspective view in which the braided shield is omitted.

  As shown in FIGS. 1A and 1B, the wire harness 1 includes an electric wire 2 and a connector 3 provided at an end of the electric wire 2.

  For example, the wire harness 1 is mounted on a vehicle such as an electric vehicle or a hybrid vehicle that uses an electric motor as a drive source, and is used to supply a PWM (Pulse Width Modulation) -controlled current output from the inverter to the electric motor. It is done. This current includes a high-frequency component due to switching of a switching element such as a power transistor.

  In the present embodiment, the wire harness 1 uses three electric wires 2 and is configured to supply a U-phase, V-phase, and W-phase three-phase alternating current to the electric motor.

  Each electric wire 2 includes a conductor 2a in which a plurality of strands made of a good electrical conductor are twisted together and an insulator 2b made of an insulating resin provided on the outer periphery of the conductor 2a.

  A connection terminal 21 is connected to the end of each electric wire 2. The connection terminal 21 is integrally provided with a caulking portion 21a that is caulked and fixed to an end portion of the conductor 2a, and a plate-like connection portion 21b that extends from the caulking portion 21a. The connecting portion 21b is formed with a bolt fixing connecting hole 21c that penetrates the connecting portion 21b in the thickness direction. The connection terminal 21 is fixed to the device side connection terminal by fixing the connection portion 21b to the corresponding device side connection terminal provided on the terminal block in the attached member to be connected (for example, in the inverter) by bolt fixing. Electrically connected.

  A braided shield 4 is provided around the three electric wires 2 so as to collectively cover the three electric wires 2. The braided shield 4 is formed, for example, by knitting a plurality of shield wires formed by tin-plating copper. Here, the braided shield 4 is formed by making six shield strands into one strand and crossing the strands in an X shape and knitting them. The braided shield 4 can be expanded and contracted by changing the size of the stitch by, for example, manual work.

Although not shown, a corrugated tube for protecting the electric wire 2 may be provided on the outer periphery of the braided shield 4. The corrugated tube is a cylindrical member made of resin and has a bellows shape in which large diameter portions and small diameter portions are alternately formed.
(Description of connector 3)
FIG. 2 is a perspective view of the connector 3, and FIG. 3 is a cross-sectional view taken along line AA.

  As shown in FIGS. 2 and 3, the connector 3 has an insertion hole 71 through which the electric wire 2 is inserted, and a member to be accommodated that is accommodated in an attachment hole (not shown) formed in the member to be attached (for example, an inverter). 31 and an electric wire holding member 32 which is arranged alongside the electric wire 2 along with the accommodated member 31 and has a fixing portion (flange portion 62) for holding the electric wire 2 and fixing the electric wire 2 to an attachment member (for example, an inverter). And.

(Description of electric wire holding member 32)
The electric wire holding member 32 includes a housing (electric wire holder) 5 made of an insulating resin and a shield shell (shield case) 6 made of a conductive metal.

  As shown in FIGS. 2 to 4, the housing 5 includes an electric wire support portion 52 that supports the electric wire 2, an outer wall portion 53 that covers the electric wire support portion 52, and a connecting portion 54 that connects the electric wire support portion 52 and the outer wall portion 53. And are integrated. The housing 5 is made of an insulating resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide), and is formed by, for example, injection molding.

  The electric wire support 52 is formed in a cylindrical shape having an insertion hole 51 through which the electric wire 2 is inserted, and is configured to sandwich the electric wire 2 inserted through the insertion hole 51. Here, three wire support portions 52 are provided corresponding to the three wires 2. However, the present invention is not limited thereto, and for example, an integrally configured wire support portion having three insertion holes 51 may be provided. The three electric wire support portions 52 are arranged at equal intervals in the direction perpendicular to the longitudinal direction of the electric wire 2 and are configured to hold the three electric wires 2 in an aligned state. Hereinafter, the longitudinal direction of the electric wire 2 in the connector 3 is referred to as a length direction, the alignment direction of the electric wires 2 is referred to as a width direction, and a direction perpendicular to the length direction and the width direction is referred to as a height direction.

  The outer wall portion 53 is formed in a cylindrical shape and is provided so as to be separated from each wire support portion 52 and cover each wire support portion 52 collectively. The connecting portion 54 includes a rib-like connecting piece 54 a that connects the center portion and both side portions in the width direction of the electric wire support portion 52 and the outer wall portion 53, and the electric wire support portion 52 and the outer wall portion 53 on the distal end side of the electric wire 2. And a front wall portion 54b provided so as to close the gap between the two.

  In the present embodiment, the housing 5 is vertically divided at the center in the height direction, and both the divided housings 5 are fixed by a fixing means including a lance 55 and integrated.

  A shield shell 6 is provided on the outer periphery of the outer wall portion 53 by press-fitting. The shield shell 6 is made of a conductive metal such as iron, brass, or aluminum, for example, and is configured to accommodate at least a part of the housing 5. A plurality of rib-shaped protrusions 53a formed along the length direction are formed at the end of the outer wall 53 on the wire insertion side so as to be spaced apart from each other in the circumferential direction. The shield shell 6 thus formed can be firmly fixed to the housing 5.

  The shield shell 6 is provided so as to cover the periphery of the outer wall portion 53 of the housing 5, and is provided so as to protrude outward from the end portion on the distal end side of the tubular portion 61. And a flange portion 62 as a fixing portion that is fixed to a housing (for example, an inverter). A belt-like tightening member 64 is provided on the outer periphery of the shield shell 6, and the braided shield 4 is fixed to the outer periphery of the shield shell 6 by the tightening member 64 and the tubular portion 61 is tightened. 5 is fixed.

(Description of the member 31)
5A and 5B are perspective views of the seal holding member, and FIG. 6 is an exploded perspective view thereof.

  As shown in FIGS. 2, 3, 5A, 5B, and 6, the accommodated member 31 is a member that is accommodated in an attachment hole (not shown) formed in the attached member (for example, an inverter). The shield shell 6 that is a fixed portion is disposed on the tip side of the flange portion 62.

  The accommodated member 31 includes a seal holding member 72 as a accommodated member side housing having three insertion holes 71 through which the electric wire 2 is inserted, and an annular magnetic body made of a nanocrystalline soft magnetic material provided in the seal holding member 72. And a core 8. That is, the connector 3 has the magnetic core 8 built in the member 31 to be accommodated.

  In the present embodiment, the seal holding member 72 is provided so as to cover the outer periphery of the electric wire 2, has an inner wall portion 78 that is harder than the electric wire 2, and nanocrystals so as to cover the periphery of the inner wall portion 78. An annular magnetic core 8 made of a soft magnetic material is provided. Here, “hard” means that it is more difficult to bend when it is bent with both ends of the same length (for example, unit length).

  Here, the common inner wall portion 78 is formed so as to collectively cover the three insertion holes 71, but the inner wall portions may be individually formed in each insertion hole 71. The magnetic core 8 is provided around the common inner wall portion 78, that is, so as to cover the three electric wires 2 together. In addition, although you may comprise so that the some magnetic body core 8 may be provided so that each electric wire 2 may be covered separately, in this case, the space | interval of each electric wire 2 (space | interval of the inner wall separately provided around each electric wire 2) ) Needs to be increased to such a degree that the magnetic core 8 can be accommodated, leading to an increase in size of the connector 3 (accepted member 31). That is, it contributes to size reduction of the connector 3 by providing the magnetic core 8 so as to cover the plurality of electric wires 2 collectively.

  In the present embodiment, the magnetic core 8 is made of a nanocrystalline soft magnetic material. The nanocrystalline soft magnetic material is a material in which nanocrystalline grains of a ferromagnetic phase are dispersed in the remaining amorphous phase by crystallizing an amorphous alloy.

  Here, Finemet (registered trademark) was used as the nanocrystalline soft magnetic material. The magnetic core 8 made of Finemet (registered trademark) is made of, for example, a single alloy melt containing Fe (-Si) -B as a basic component and a small amount of elements such as Cu, Nb, Ta, Mo, and Zr added thereto. After an amorphous metal ribbon having a thickness of about 20 μm is formed by a rapid quenching method such as a roll method, this is formed into a magnetic core shape (here, an annular shape covering the three wire support portions 52 in a lump), and then the crystallization temperature is exceeded. It is formed by heat treatment and crystallization. The crystal grain size in the magnetic core 8 is about 10 nm. As the magnetic core 8, a nanocrystalline soft magnetic material other than Finemet (registered trademark), for example, NANOMET (registered trademark) may be used.

  The nanocrystalline soft magnetic material has a high saturation magnetic flux density and excellent soft magnetic characteristics (high magnetic permeability and low magnetic core loss characteristics) as compared with conventionally used soft magnetic materials such as soft ferrite. Therefore, by using a nanocrystalline soft magnetic material as the magnetic core 8, the magnetic core 8 can be downsized. As a result, even when the magnetic core 8 is built in the connector 3, it is possible to suppress an increase in the size of the connector 3 and realize a compact connector 3 while incorporating the magnetic core 8. The size (thickness and length) of the magnetic core 8 may be appropriately set so as to obtain desired characteristics in consideration of the characteristics of the nanocrystalline soft magnetic material to be used.

  In addition, the nanocrystalline soft magnetic material has a characteristic that it can suppress electromagnetic wave noise in a frequency band used for a radio such as AM radio, as compared with a soft magnetic material such as soft ferrite conventionally used. In the vehicle, road information and the like are provided by the AM radio. Therefore, particularly when the wire harness 1 is applied to the vehicle, it can be said that the effect of suppressing electromagnetic wave noise in the frequency band used for the radio is great.

  However, the nanocrystalline soft magnetic material has a characteristic that the magnetic characteristics change when an external stress is applied. Therefore, when the magnetic core 8 made of the nanocrystalline soft magnetic material is used, it is necessary to adopt a configuration in which no stress is applied to the magnetic core 8 from the outside.

  Therefore, in the present embodiment, the seal holding member 72 is provided with an inner wall portion 78 that is harder than the electric wire 2, and an annular magnetic core 8 made of a nanocrystalline soft magnetic material is provided around the inner wall portion 78. did. As a result, no stress is applied to the magnetic core 8 even when the electric wire 2 is bent, and the change in the magnetic characteristics of the magnetic core 8 can be suppressed.

  In the present embodiment, the entire seal holding member 72 is made of a material harder than the electric wire 2. However, the present invention is not limited to this, and at least the inner wall 78 may be made of a material harder than the electric wire 2. The seal holding member 72 is made of an insulating resin such as PBT (polybutylene terephthalate), PA (polyamide), or PPS (polyphenylene sulfide).

  When the magnetic core 8 protrudes in the length direction (longitudinal direction of the electric wire 2) from the inner wall portion 78, the magnetic core 8 of the protruding portion interferes with the bent electric wire 2, and the magnetic core 8 Since the magnetic characteristics may change, it is desirable that the magnetic core 8 be provided so as not to protrude in the longitudinal direction of the electric wire 2 from the inner wall portion 78.

  In addition, when the inner wall part 78 is formed thick, the distance between the magnetic core 8 and the electric wire 2 increases, so that the magnetic core 8 is slightly longer in the length direction (longitudinal direction of the electric wire 2) than the inner wall part 78. Even if it protrudes, there is no possibility that the electric wire 2 interferes with the magnetic core 8. However, as the distance between the electric wire 2 and the magnetic core 8 increases, the circumferential length of the laminated magnetic core 8 increases and the effect of suppressing electromagnetic waves decreases. That is, as in the present embodiment, the magnetic core 8 is provided so as not to protrude in the longitudinal direction of the electric wire 2 from the inner wall portion 78, thereby making the thickness of the inner wall portion 78 smaller (the magnetic core 8 and the electric wire). The distance between the magnetic core 8 and the magnetic core 8 can be suppressed while the effect of suppressing electromagnetic waves is further increased.

  In the present embodiment, the seal holding member 72 has a cylindrical outer wall portion 79 that is provided so as to cover the inner wall portion 78 and the magnetic core 8 so as to sandwich the magnetic core 8 between the inner wall portion 78. And a restricting portion 80 for restricting movement of the magnetic core 8 along the longitudinal direction of the electric wire 2.

  The outer wall 79 is provided apart from the inner wall 78, and the magnetic core 8 is disposed in the magnetic core housing groove 81 that is a space between the outer wall 79 and the inner wall 78. . The outer wall 79 has a role of protecting the magnetic core 8 during transportation, attachment work of the wire harness 1, and the like, and the magnetic core 8 interferes with the inner peripheral surface of the attachment hole of the non-attachment member to change the magnetic characteristics. It also serves as a role to suppress the occurrence of this.

  In the present embodiment, a magnetic core receiving groove 81 that opens to the front end side is formed on the end surface 72a on the front end side of the seal holding member 72 so as to be along the peripheral edge of the end surface 72a at a position separated from the peripheral edge of the end surface 72a. The magnetic core 8 is received in the magnetic core receiving groove 81. The seal holding member 72 positioned inward of the magnetic core receiving groove 81 serves as the inner wall portion 78, and the seal holding member 72 positioned outward of the magnetic core receiving groove 81 serves as the outer wall portion 79.

  In order to prevent the magnetic core 8 housed in the magnetic core housing groove 81 from dropping off, the seal holding member 72 is provided with a cap 82 so as to close the opening of the magnetic body core housing groove 81. Here, for convenience, the seal holding member 72 and the cap 82 are described as separate members, but the cap 82 is a part of the seal holding member 72. The cap 82 is formed with three through holes 82 a through which the electric wire 2 is inserted. The cap 82 is attached to the seal holding member 72 so as to cover the entire end surface 72 a of the seal holding member 72. The method for fixing the cap 82 to the seal holding member 72 is not particularly limited. For example, the cap 82 may be fixed by an appropriate means such as adhesive fixing, mechanical fixing using a lance or a locking projection, or bolt fixing. What is necessary is just to fix 82 to the seal holding member 72.

  In the present embodiment, the cap 82 and the bottom wall 81 a (see FIG. 3) of the magnetic core housing groove 81 serve as a restricting portion 80 that restricts the movement of the magnetic core 8 along the longitudinal direction of the electric wire 2. Will be composed.

  The accommodated member 31 is held on the outer peripheral surface of the seal holding member 72, and the outer peripheral seal member 76 that seals between the inner surface of the mounting hole of the mounted member and the seal holding member 72, and the inner periphery of the insertion hole 71 An inner peripheral seal member (wire seal) 74 that is held on the surface and seals between the insertion hole 71 and the electric wire 2. 5A, 5B, and 6, the outer peripheral seal member 76 and the inner peripheral seal member are omitted.

  The outer peripheral seal member 76 is formed in an annular shape, and is disposed in an outer peripheral seal member groove 75 formed along the circumferential direction on the outer periphery of the seal holding member 72. The outer peripheral seal member 76 is interposed between the seal holding member 72 and the inner surface of the attachment hole of the attached member (eg, inverter), and moisture enters the attached member (eg, inverter) from the outside of the seal holding member 72. To suppress that.

  The inner peripheral seal member 74 is formed in an annular shape, and is disposed in an inner peripheral seal member groove 73 formed along the circumferential direction at the end of the insertion hole 71 in the seal holding member 72 on the housing 5 side. The inner peripheral sealing member 74 is interposed between the insulator 2b of the electric wire 2 and the seal holding member 72, and suppresses moisture from entering the attached member (for example, an inverter) through the electric wire 2.

  In the connector 3, the magnetic core 8 is provided at a position that does not overlap the outer peripheral seal member 76 and the inner peripheral seal member 74 in the length direction (longitudinal direction of the electric wire 2). In the case where the magnetic core 8 is provided at a position overlapping the outer peripheral seal member 76 or the inner peripheral seal member 74, both the arrangement space of the magnetic core 8 and the arrangement space of the seal members 74 and 76 are the same position in the length direction. This is because the seal holding member 72 is increased in size. In order to avoid the outer peripheral seal member groove 75 and the inner peripheral seal member groove 73, it is conceivable to reduce the thickness of the magnetic core 8 (thin), but in this case, in order to secure the volume of the magnetic core 8. Therefore, it is necessary to form a long thin magnetic core 8, and the length of the seal holding member 72 that accommodates the magnetic core 8 becomes large, and the seal holding member 72 eventually becomes large.

  By providing the magnetic core 8 at a position that does not overlap with the outer peripheral seal member 76 and the inner peripheral seal member 74, the thickness of the magnetic core 8 can be secured and the length can be shortened. The member 72 can be downsized.

  A locking projection 77 that protrudes toward the base end is formed integrally with the base end of the seal holding member 72. The locking projection 77 connects the rectangular parallelepiped head portion 77a, the head portion 77a and the seal holding member 72, and a shaft portion formed in a rectangular parallelepiped shape (rectangular column shape) having a smaller width and height than the head portion 77a. (Neck portion) 77b.

  A locking groove 56 for locking the locking projection 77 is formed in the front wall portion 54 b of the housing 5. The locking groove 56 has a head accommodating portion 56a having a larger width, height, and length than the head 77a that accommodates the head 77a of the locking projection 77, and a width and height smaller than the head 77a. A shaft housing portion 56b that is larger in width and height than the shaft portion 77b and shorter in length than the shaft portion 77b, and the head housing portion 56a opens forward via the shaft portion housing portion 56b. It is configured as follows.

  The head shell 77a is housed in the head housing portion 56a, the shaft portion 77b is housed in the shaft portion housing portion 56b, and the locking projections 77 are locked in the locking grooves 56, whereby the shield shell 6 is attached to a member to be attached (for example, an inverter). ), The seal holding member 72 can be moved relative to the electric wire holding member 32. In the present embodiment, the seal holding member 7 is movable with respect to the housing 5 in the length direction, the width direction, and the height direction.

  With this configuration, even if the electric wire holding member 32 (the shield shell 6 or the housing 5) is rotated or inclined due to the bending of the electric wire 2 or the torque when the shield shell 6 is bolted, the rotation or inclination is sealed. It becomes difficult for the holding member 72 to follow, and for example, it is possible to prevent the waterproof function from being lost due to, for example, only a part of the outer peripheral seal member 76 being crushed excessively. In addition, it is possible to further suppress the stress from being applied to the magnetic core 8 mounted on the seal holding member 72, and it is possible to further suppress the change in the magnetic characteristics of the magnetic core 8.

  Here, the case where the head portion 77a and the shaft portion 77b of the locking projection 77 are formed in a rectangular parallelepiped shape (or prismatic shape) has been described, but the shapes of the head portion 77a and the shaft portion 77b are not limited to this. For example, the head portion 77a and the shaft portion 77b may be cylindrical, and the head portion 77a may be spherical.

  The means for connecting the seal holding member 72 and the electric wire holding member 32 (housing 5) so as to be relatively movable is not limited to the locking projection 77 and the locking groove 56. For example, an elastic hook (lance) is extended from one of the seal holding member 72 and the housing 5, and an engaging portion for engaging the hook is provided on the other of the seal holding member 72 and the housing 5 to lock the hook. The seal holding member 72 and the electric wire holding member 32 (housing 5) can be configured to be relatively movable by the elasticity of the hook even when the seal holding member 72 and the housing 5 are connected to each other. It is.

(Operation and effect of the embodiment)
As described above, in the connector 3 according to the present embodiment, the member to be accommodated 31 accommodated in the attachment hole formed in the member to be attached is provided so as to cover the outer periphery of the electric wire 2. A seal holding member 72 having a hard inner wall portion 78 and an annular magnetic core 8 made of a nanocrystalline soft magnetic material provided around the inner wall portion 78 are provided.

  By using the annular magnetic core 8 made of a nanocrystalline soft magnetic material, the magnetic core 8 is downsized compared to the conventionally used ferrite core and the like, and the connector 3 is made magnetic without increasing the size of the connector 3. It becomes possible to mount the body core 8.

  Further, by providing the magnetic core 8 around the inner wall portion 78 made of a material harder than the electric wire 2, no load is applied to the magnetic core 8 when the electric wire 2 is bent or due to vibration of the electric wire 2 or the like. In this way, it is possible to suppress changes in the magnetic characteristics of the magnetic core 8.

  By incorporating the magnetic core 8 in the connector 3, it is not necessary to fix the magnetic core to the vehicle body or the like as in the case where a magnetic core made of a ferrite core or the like is provided outside the connector 3 as in the prior art. Therefore, it becomes possible to improve the freedom degree of the layout of the wire harness 1. In addition, since a dedicated fixing member for fixing the magnetic body core such as a ferrite core to the vehicle body or the like is not required, the number of parts can be reduced and workability when attaching the wire harness 1 can be improved.

  That is, according to the present embodiment, it is possible to improve the degree of freedom in the layout of the layout and to suppress the number of parts while suppressing the change in the magnetic characteristics of the magnetic core 8 and reliably reducing the electromagnetic noise. Possible connector 3 and wire harness 1 can be realized.

  Further, in the present embodiment, the magnetic core 8 is mounted on the member 31 to be accommodated in the attachment hole of the member to be attached. In other words, in the present embodiment, the magnetic core 8 is arranged in this space using the space from the fixing portion (flange portion 62) to the attached member to the terminal block. Thereby, compared with the case where the magnetic body core 8 is arrange | positioned, for example to the extension side (electric wire holding member 32) of the electric wire 2 rather than the fixing | fixed part (flange part 62), from the fixing | fixed part (flange part 62) of the connector 3. The protruding length of the wire 2 can be reduced, and the electric wire 2 can be bent closer to the fixed portion (flange portion 62). As a result, it is possible to further improve the degree of freedom in the layout of the wire harness 1, and it is possible to realize the connector 3 that occupies a small space when attached to the attached member.

(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] A connector (3) provided at an end of an electric wire (2), having an insertion hole (71) for inserting the electric wire (2), and accommodated in an attachment hole formed in a member to be attached. The member to be accommodated (31) and the wire (2) are arranged side by side with the member to be accommodated (31), and the wire (2) is held and fixed for fixing to the member to be attached. An electric wire holding member (32) having a portion (62), and the accommodated member (31) is provided so as to cover an outer periphery of the electric wire (2), and is an inner wall portion harder than the electric wire (2). A connector (78) comprising: a member-side housing (72) having (78); and an annular magnetic core (8) made of a nanocrystalline soft magnetic material provided around the inner wall (78). 3).

[2] The connector (3) according to [1], wherein the magnetic core (8) is provided so as not to protrude in the longitudinal direction of the electric wire (2) from the inner wall (72).

[3] The accommodated member side housing (72) is provided so as to cover the inner wall portion 78 and the magnetic core 8 so as to sandwich the magnetic core 8 with the inner wall portion 78. [1] or [2], which includes a cylindrical outer wall portion 79 and a restriction portion (80) for restricting movement of the magnetic core (8) along the longitudinal direction of the electric wire (2). Connector (3).

[4] The outer periphery for sealing the gap between the inner surface of the mounting hole and the received member-side housing (72), the received member (31) being held on the outer peripheral surface of the received member-side housing (72). A housing member (72) having a seal member (76) is movable relative to the wire holding member (32) when the wire holding member (32) is fixed to the attached member. The connector (3) according to any one of [1] to [3].

[5] The accommodated member (31) is held on the inner peripheral surface of the insertion hole (71), and seals between the insertion hole (71) and the electric wire (2) (74). The magnetic core (8) is provided at a position that does not overlap the outer peripheral seal member (76) and the inner peripheral seal member (74) in the longitudinal direction of the electric wire (2). 4] Connector (3).

[6] The accommodated member side housing (72) includes a plurality of the insertion holes (71), and is configured to insert the plurality of electric wires (2) into the plurality of insertion holes (71). A body core (8) is a connector (3) given in any 1 paragraph of [1] thru / or [5] provided so that a plurality of above-mentioned electric wires (2) may be covered collectively.

[7] A wire harness (1) comprising an electric wire (2) and the connector (3) according to any one of [1] to [6].

  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 the magnetic core 8 is provided in the member 31 that can be moved relative to the electric wire holding member 32 has been described. However, the magnetic core 8 is relative to the electric wire holding member 32. It is not necessary to be provided in the movable member, and it is only necessary to be provided in a portion (a portion closer to the tip side than the flange portion 62 as the fixing portion) accommodated in the attachment hole of the attached member in the connector 3. For example, the front end portion of the housing 5 may be extended to the front end side and accommodated in the attachment hole, and the magnetic core 8 may be provided at the front end portion of the housing 5 accommodated in the attachment hole. Good.

  Moreover, in the said embodiment, although the magnetic body core 8 was provided in the front end side rather than the sealing members 74 and 76, it is not restricted to this, The magnetic body core 8 is provided in the electric wire holding member 32 side rather than the sealing members 74 and 76. You may comprise so that it may provide. In this case, for example, the magnetic core receiving groove 81 that opens to the housing 5 side is formed on the end surface of the seal holding member 72 on the housing 5 side to store the magnetic core 8 and the end portion on the distal end side of the insertion hole 71. Alternatively, the inner peripheral seal member groove 73 may be formed to accommodate the inner peripheral seal member 74, and the positions of the magnetic core 8 and the inner peripheral seal member 74 may be interchanged. In this case, the cap 82 prevents the inner peripheral seal member 74 from falling off.

  Moreover, although the case where the number of the electric wires 2 is three was demonstrated in this Embodiment, the number of the electric wires 2 is not limited, For example, the number of the electric wires 2 may be one, two, or four or more. .

DESCRIPTION OF SYMBOLS 1 ... Wire harness 2 ... Electric wire 3 ... Connector 5 ... Housing 6 ... Shield shell 8 ... Magnetic body core 31 ... Housed member 32 ... Electric wire holding member 62 ... Flange part (fixed part)
71 ... Insertion hole 72 ... Seal holding member (housing member side housing)
78 ... Inner wall 79 ... Outer wall

Claims (7)

A connector provided at an end of an electric wire,
A member to be received that has an insertion hole through which the electric wire is inserted, and is accommodated in an attachment hole formed in the member to be attached;
An electric wire holding member that is arranged alongside the electric wire along with the accommodated member, holds the electric wire, and has a fixing portion for fixing to the attached member;
The accommodated member is:
A housed member-side housing that is provided so as to cover the outer periphery of the electric wire and has an inner wall portion that is harder than the electric wire;
An annular magnetic core made of a nanocrystalline soft magnetic material provided around the inner wall,
connector. The magnetic core is provided so as not to protrude in the longitudinal direction of the electric wire from the inner wall portion.
The connector according to claim 1. The accommodated member side housing is:
A cylindrical outer wall provided so as to cover the inner wall and the magnetic core so as to sandwich the magnetic core between the inner wall and the inner wall;
A regulation part that regulates movement of the magnetic core along the longitudinal direction of the electric wire,
The connector according to claim 1 or 2. The accommodated member includes an outer peripheral seal member that is held on an outer peripheral surface of the accommodated member side housing and seals between an inner surface of the mounting hole and the accommodated member side housing;
The housing member-side housing is movable relative to the wire holding member when the wire holding member is fixed to the attached member.
The connector according to any one of claims 1 to 3. The accommodated member includes an inner peripheral seal member that is held on an inner peripheral surface of the insertion hole and seals between the insertion hole and the electric wire,
The magnetic core is provided at a position that does not overlap the outer peripheral seal member and the inner peripheral seal member in the longitudinal direction of the electric wire.
The connector according to claim 4. The accommodated member-side housing includes a plurality of the insertion holes, and is configured to insert the plurality of electric wires into the plurality of insertion holes,
The magnetic core is provided so as to collectively cover the plurality of electric wires.
The connector according to any one of claims 1 to 5. Electric wires,
A connector according to any one of claims 1 to 6,
Wire harness.

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