JP6564634B2 - Cabling material fixing structure and wire harness - Google Patents

Description

  The present invention relates to a routing material fixing structure and a wire harness.

  Automobiles are provided with a large number of conductive wiring materials that supply electric power to electrical components and transmit electrical signals to electrical components, but in automobiles, in order to protect these wiring materials, Many parts of the routing material are covered with an exterior. At that time, in order to prevent abnormal noise from the wiring material due to the vibration of the wiring material in the exterior or wearing it, There is something that is trying to fix the routing material to. For example, in the waterproof structure of the wire harness described in Patent Document 1, the adhesive is adhered to the outer peripheral surface of the electric wire without a gap by winding the waterproof sheet on which the adhesive is attached to the electric wire, and is waterproof. The edges of the sheet are bonded together in a wound state.

JP-A-7-245841

  However, unlike the waterproof structure of the wire harness described in Patent Document 1 described above, when using a member formed in a cylindrical shape, such as a corrugated tube, as an exterior covering the wiring material, an adhesive is applied to the inside of the exterior. It is difficult to apply and bond the exterior and the wiring material with an adhesive. For this reason, when using, for example, a tube that has been molded in advance as the exterior covering the routing material, it is very difficult to fix the routing material to the exterior.

  This invention is made | formed in view of said situation, Comprising: It aims at providing the fixing structure of a routing material which can fix a routing material with respect to a cylindrical exterior, and a wire harness. .

  In order to achieve the above-described object, the routing material fixing structure according to the present invention has a conductive conductor portion formed in a rod shape and includes a routing material inserted inside a cylindrical exterior. A part of the conductor portion is formed by bulging outward in the radial direction intersecting the extending direction of the wiring material, and abuts on the inner surface of the exterior to the radial direction of the wiring material. It is provided with the bulging part which controls the movement of this.

  Moreover, in the fixing structure of the wiring member, the bulging portion includes the conductor portion in the bulging portion in the fixed portion having a gap in the radial direction with respect to the inner surface of the exterior in the wiring member. The outer shape can be formed larger than the conductor portion.

  Moreover, in the fixing structure of the routing member, the fixed portion is formed in a circular shape in cross section along the radial direction of the conductor portion, and the bulging portion is formed in the radial direction of the conductor portion. The cross-sectional shape along the shape may be formed in an oval shape or an elliptical shape, and both end portions in the longitudinal direction of the cross-sectional shape along the radial direction may be in contact with the inner surface of the exterior.

  Further, in the arrangement structure of the routing member, a plurality of the bulging portions are formed at intervals in the extending direction, and the adjacent bulging portions have a longitudinal direction of a cross-sectional shape along the radial direction. It can be formed by being shifted along the circumferential direction.

  Moreover, in the said fixed structure of a wiring material, the said bulging part shall be formed by crushing a part of said conductor part of the part corresponded to the said fixed form part.

  In order to achieve the above object, a wire harness according to the present invention includes a wiring material having a conductive conductor portion formed in a rod shape, and the wiring material formed in a cylindrical shape on the inside. An exterior covering the routing material, and a portion of the conductor portion of the routing material bulges outward in a radial direction intersecting the extending direction of the routing material, It has a fixed structure of the routing material which has an bulging part which contacts an inner surface and controls movement of the routing material in the radial direction.

  INDUSTRIAL APPLICABILITY The routing material fixing structure and the wire harness according to the present invention have an effect that the routing material can be fixed to a cylindrical exterior.

Drawing 1 is a fragmentary sectional view showing a schematic structure of a wire harness concerning an embodiment. 2 is a cross-sectional view taken along line AA shown in FIG. 3 is a cross-sectional view taken along the line BB in FIG. 4 is a cross-sectional view taken along the line CC in FIG.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

[Embodiment]
FIG. 1 is a partial cross-sectional view along the axial direction showing a schematic configuration of the wire harness according to the embodiment. 2 is a cross-sectional view taken along line AA shown in FIG. 1 (a cross-sectional view taken along the radial direction). FIG. 3 is a cross-sectional view taken along the line B-B shown in FIG. 1 (a cross-sectional view along the radial direction). 4 is a cross-sectional view taken along the line CC in FIG. 1 (a cross-sectional view along the radial direction).

  The wire harness WH shown in FIG. 1 is used for power supply and signal communication, for example, for connection between devices mounted on an automobile or the like. The wire harness WH may be configured to include various components such as an electrical connection box (junction box, fuse box, relay box), grommet, and fixture. The wire harness WH of the present embodiment is applied to, for example, a so-called HV (hybrid) vehicle and routed under the floor of the HV vehicle, but is not limited thereto.

  The fixing structure 100 of the routing material 1 according to the present embodiment is applied to the wire harness WH as shown in FIGS. 1, 2, 3, and 4. The wire harness WH includes a conductive material portion 11 formed in a rod shape and extending in one direction, and the wiring material 1 is formed in a cylindrical shape by inserting the wiring material 1 inside. A corrugated tube 2 as an exterior covering the cable, and a fixing structure 100 for the routing material 1. For example, the wire harness WH is routed in the vehicle to electrically connect the electrical components mounted on the vehicle, and the routing material 1 transmits an electrical signal between the electrical components, The corrugated tube 2 covers and protects the outside of the routing material 1.

  The wiring member 1 is a metal rod (in other words, a single-core wire) that is inserted inside the corrugated tube 2 that has a conductive conductor portion 11 formed in a rod shape and is formed in a cylindrical shape. The routing material 1 formed as a metal rod can ensure a relatively large current capacity with a relatively small cross-sectional area as compared with, for example, a multi-core wire, and thus the wire harness WH can be made compact. Can be achieved. More specifically, the routing material 1 includes a conductive conductor portion 11 formed in a rod shape and an insulating insulating covering portion 12 that covers the outer peripheral side of the conductor portion 11. The conductor part 11 is comprised with the metal member through which electroconductive electricity passes. The conductor part 11 is formed in a rod shape, and here has a columnar conductor structure with a substantially circular cross-sectional shape. The conductor portion 11 is manufactured from a conductive metal such as copper, a copper alloy, aluminum, an aluminum alloy, or the like. The insulation coating portion 12 is a wire coating that covers the outer peripheral side of the conductor portion 11. The insulating coating portion 12 is provided in contact with the outer peripheral surface of the conductor portion 11. The insulating coating portion 12 is formed by, for example, extruding an insulating resin material (PP, PVC, cross-linked PE, etc., appropriately selected in consideration of wear resistance, chemical resistance, heat resistance, etc.). It is formed. The insulation coating portion 12 is formed from one end to the other end in the extending direction of the conductor portion 11. In the routing material 1, the axial direction of the conductor portion 11 formed in a rod shape is an extending direction extending linearly.

  The corrugated tube 2 is formed in a cylindrical shape (tubular) having flexibility by an insulating resin material or the like, here, in a cylindrical shape. The corrugated tube 2 illustrated in FIG. 1 and the like has a bellows shape in which a plurality of irregularities along the circumferential direction are formed on the outer peripheral surface, and the routing material 1 is inserted inside the corrugated tube, and the inserted routing material Protect 1

  In addition, the number of the routing materials 1 inserted into the corrugated tube 2 in this way may be one or plural. Moreover, the bellows-shaped part formed in the corrugated tube 2 may be formed over the whole corrugated tube 2, and a part of corrugated tube 2 may be formed in bellows shape. Further, the corrugated tube 2 may not have a bellows shape, and may have a cylindrical shape without irregularities.

  And the fixing structure 100 of the routing material 1 of this embodiment is provided with the bulging part 101 which controls the movement to the radial direction of the routing material 1, and is thus arranged with respect to the cylindrical corrugated tube 2 1 is fixed. Here, the radial direction of the routing material 1 is a direction orthogonal (crossing) to the extending direction of the routing material.

  The bulging portion 101 is formed by bulging a part of the conductor portion 11 constituting the cabling material 1 toward the radially outer side of the cabling material 1. The bulging portion 101 abuts on the inner surface of the corrugated tube 2 and regulates the radial movement of the routing material 1.

  More specifically, the bulging portion 101 is formed such that the conductor portion 11 in the bulging portion 101 has a larger outer shape than the conductor portion 11 in the fixed portion 13 that is a portion other than the bulging portion 101 of the routing material 1. This is the part.

  Here, the fixed shape portion 13 is a portion having a gap in the radial direction with respect to the inner peripheral surface (inner surface) of the corrugated tube 2 in the routing material 1. More specifically, the fixed portion 13 is a portion where a gap is formed over the entire circumference in the circumferential direction with respect to the inner circumferential surface of the corrugated tube 2. In the fixed portion 13 of this embodiment, the cross-sectional shape along the radial direction of the conductor portion 11 is formed in a substantially circular shape, and the cross-sectional shape along the radial direction of the insulating coating portion 12 is a substantially circular shape. As a whole, it has a substantially circular cross-sectional shape. The fixed portion 13 is formed so that the outer diameter including the insulating coating portion 12 is smaller than the inner diameter of the corrugated tube 2. The fixed portion 13 is formed to extend with substantially the same diameter with respect to the extending direction. Thereby, a clearance gap is formed between the fixed shape part 13 and the internal peripheral surface of the corrugated tube 2 over the perimeter of an outer peripheral surface.

  The bulging portion 101 is formed such that the cross-sectional shape along the radial direction of the conductor portion 11 is substantially oval or elliptical, and the cross-sectional shape along the radial direction of the insulating coating portion 12 is substantially oval or substantially circular. It has an elliptical ring shape, and has a substantially oval shape or a substantially oval shape (substantially oval shape in the examples of FIGS. 3 and 4) as a whole. And as for the bulging part 101, the both ends of the longitudinal direction of the cross-sectional shape along radial direction contact | abut to the internal peripheral surface of the corrugated tube 2 typically. The bulging portion 101 is typically formed such that both ends in the longitudinal direction of the cross-sectional shape along the radial direction are in close contact with the inner peripheral surface of the corrugated tube 2 without a gap. That is, the bulging portion 101 is formed so that the outer diameter (the length between both ends in the longitudinal direction of the cross-sectional shape along the radial direction) is substantially equal to or slightly smaller than the inner diameter of the corrugated tube 2. Here, the bulging part 101 is formed, for example, by crushing and flattening a part of the conductor part 11 corresponding to the fixed part 13. A plurality of the bulging portions 101 of the present embodiment are formed at intervals in the extending direction of the routing material 1. In this case, the adjacent bulging portions 101 are preferably formed by shifting the longitudinal direction of the cross-sectional shape along the radial direction along the circumferential direction. In the present embodiment, adjacent bulging portions 101 are formed such that the longitudinal direction of the cross-sectional shape along the radial direction is shifted in phase by about 90 ° along the circumferential direction.

  According to the fixing structure 100 of the routing material 1 described above, the routing material 1 having the conductive conductor portion 11 formed in a rod shape and inserted inside the corrugated tube 2 formed in a cylindrical shape. A part of the conductor portion 11 is formed by bulging outward in the radial direction intersecting with the extending direction of the wiring material 1, and comes into contact with the inner surface of the corrugated tube 2 to have a diameter of the wiring material 1. The bulging part 101 which controls the movement to a direction is provided. According to the wire harness WH of the routing material 1 described above, the routing material 1 having the conductive conductor portion 11 formed in a rod shape, and the routing material 1 is inserted into the inside of the cylindrical shape. The corrugated tube 2 which covers the routing material 1 by this, and the fixing structure 100 of the said routing material 1 are provided.

  Therefore, in the fixing structure 100 and the wire harness WH, a part of the conductor part 11 of the cabling material 1 bulges outward in the radial direction so that the bulge part 101 is formed, and the bulge part 101 is corrugated. Abutting on the inner surface of the tube 2, the movement of the wiring material 1 in the radial direction is restricted. As a result, the fixing structure 100 and the wire harness WH can fix the routing material 1 to the cylindrical corrugated tube 2.

  For example, the fixed structure 100 and the wire harness WH generate various vibrations due to input from the road surface due to road surface unevenness in the vehicle to which the wire harness WH is applied. Also communicated. On the other hand, in the fixing structure 100 and the wire harness WH of the present embodiment, the wiring material 1 is securely fixed to the tubular corrugated tube 2 by the fixing structure 100, so that the wiring material 1 Even when vibration is transmitted, the routing material 1 can be made difficult to move in the corrugated tube 2. Thereby, the fixed structure 100 and the wire harness WH can suppress that the routing material 1 vibrates in the corrugated tube 2 according to vehicle vibration etc., and the routing material 1 and the corrugated tube 2 wear. Generation of noise or abnormal noise can be suppressed, and electric power, electric signals, and the like can be transmitted via the routing member 1 thereon.

  In addition, for example, the fixed structure 100 and the wire harness WH are arranged in accordance with vehicle vibration or the like by causing the bulging direction of at least some of the bulging portions 101 to be along a vertical direction in which vehicle vibration is relatively likely to occur. The vibration of the material 1 can be more suitably suppressed. Further, for example, the fixing structure 100 and the wire harness WH are arranged such that at least one of both longitudinal end portions of the cross-sectional shape along the radial direction of the bulging portion 101 faces the vehicle fixing portion side such as a vehicle body. Is positioned on the vehicle fixing part side via the corrugated tube 2 so that the vehicle fixing part receives a reaction force of vibration, so that the vibration of the routing material 1 according to the vehicle vibration or the like can be reduced. It can suppress more suitably.

  Furthermore, according to the fixing structure 100 of the routing material 1 described above, the bulging portion 101 has the conductor portion 11 in the bulging portion 101 in the radial direction with respect to the inner surface of the corrugated tube 2 in the routing material 1. The outer shape is formed larger than the conductor portion 11 in the fixed portion 13 having a gap. Accordingly, the fixing structure 100 and the wire harness WH are dimensioned so that a gap is formed between the fixed portion 13 of the routing material 1 and the inner surface of the corrugated tube 2. Therefore, it is possible to suppress a decrease in manufacturing efficiency. In addition, the fixed structure 100 and the wire harness WH are formed such that the outer shape of the conductor portion 11 in the bulge portion 101 is larger than the conductor portion 11 in the fixed shape portion 13, so that the bulge portion 101 is formed on the inner surface of the corrugated tube 2. Since the structure which abuts and regulates the radial movement of the routing material 1 can be realized, the routing material 1 can be fixed to the cylindrical corrugated tube 2.

  Furthermore, according to the fixing structure 100 of the routing material 1 described above, the fixed-shaped portion 13 is formed in a circular shape in cross section along the radial direction of the conductor portion 11, and the bulging portion 101 is formed of the conductor portion. The cross-sectional shape along the radial direction 11 is formed into an oval shape or an elliptical shape, and both end portions in the longitudinal direction of the cross-sectional shape along the radial direction are in contact with the inner surface of the corrugated tube 2. Therefore, the fixing structure 100 and the wire harness WH are arranged with respect to the cylindrical corrugated tube 2 because both ends in the longitudinal direction of the cross-sectional shape along the radial direction of the bulging portion 101 abut against the inner surface of the corrugated tube 2. The rope 1 can be reliably fixed.

  Furthermore, according to the fixing structure 100 of the routing material 1 described above, a plurality of the bulging portions 101 are formed at intervals in the extending direction, and the adjacent bulging portions 101 have cross sections along the radial direction. The longitudinal direction of the shape is formed by shifting along the circumferential direction. Therefore, since the fixing structure 100 and the wire harness WH can fix the wiring material 1 in various directions in the radial direction, the wiring material 1 corrugates against vibrations in various directions in the radial direction. It is possible to make it difficult to move in the tube 2, and as a result, it is possible to more reliably suppress wear and noise generation.

  Furthermore, according to the fixing structure 100 of the routing material 1 described above, the bulging portion 101 is formed by crushing a part of the conductor portion 11 corresponding to the fixed shape portion 13. Therefore, since the fixed structure 100 and the wire harness WH can form the bulging part 101 by a relatively simple method, manufacturing efficiency can be improved.

  The routing member fixing structure and the wire harness according to the above-described embodiment of the present invention are not limited to the above-described embodiment, and various modifications can be made within the scope described in the claims.

  In the above description, the plurality of bulging portions 101 are formed at intervals in the extending direction, and the adjacent bulging portions 101 have the longitudinal direction of the cross-sectional shape along the radial direction shifted in the circumferential direction. Although described as what is formed, it is not restricted to this. Adjacent bulging portions 101 may not have the longitudinal direction of the cross-sectional shape along the radial direction shifted along the circumferential direction, and at least one bulging portion 101 may be provided.

  In the above description, the routing material 1 has been described as having the insulating coating portion 12, but the configuration is not limited thereto, and the configuration without the insulating coating portion 12 may be used. In the above description, the fixed portion 13 is formed in a circular shape in the radial direction of the conductor portion 11, and the bulging portion 101 has a long cross-sectional shape in the radial direction of the conductor portion 11. Although described as what is formed in a circular shape or an ellipse shape, it is not restricted to this, Each cross-sectional shape may be rectangular shape or other polygonal shape.

1 Routing material 2 Corrugated tube (exterior)
DESCRIPTION OF SYMBOLS 11 Conductor part 12 Insulation coating | cover part 13 Fixed part 100 Fixing structure 101 Swelling part WH Wire harness

Claims (5)

A radial direction in which a part of the conductor portion of the routing material inserted inside the outer casing formed in a cylindrical shape having a conductive conductor portion formed in a rod shape intersects the extending direction of the routing material It is formed by bulging toward the outside of the outer surface, and includes a bulging portion that abuts on the inner surface of the exterior and regulates the radial movement of the routing material ,
The bulging portion is formed such that the cross-sectional shape of the conductor portion along the radial direction is an ellipse or an ellipse, and both end portions in the longitudinal direction of the cross-sectional shape along the radial direction are in contact with the inner surface of the exterior. A plurality of contacted and spaced apart in the extending direction,
The adjacent bulging portions are formed by shifting the longitudinal direction of the cross-sectional shape along the radial direction along the circumferential direction ,
The fixed structure of the wiring material. The bulge portion is formed such that the conductor portion in the bulge portion is larger in outer shape than the conductor portion in the fixed shape portion having a gap in the radial direction with respect to the inner surface of the exterior in the wiring member.
The routing structure fixing structure according to claim 1. The shaped portion, the cross-sectional shape along the radial direction of the conductor portion is Ru is formed into a round shape,
Fixing structure-installing material according to 請 Motomeko 2. The bulging part is formed by crushing a part of the conductor part corresponding to the fixed part.
The fixing structure of the routing material according to claim 2 or 3 . A routing material having a conductive conductor portion formed in a rod shape;
An exterior covering the wiring material by being formed into a cylindrical shape and inserting the wiring material inside;
A part of the conductor portion of the wiring material is formed by bulging outward in the radial direction intersecting the extending direction of the wiring material, and contacts the inner surface of the exterior material. and a fixing structure of the distribution cord material having a bulging portion for restricting the movement to the radial direction,
The bulging portion is formed such that the cross-sectional shape of the conductor portion along the radial direction is an ellipse or an ellipse, and both end portions in the longitudinal direction of the cross-sectional shape along the radial direction are in contact with the inner surface of the exterior. A plurality of contacted and spaced apart in the extending direction,
The adjacent bulging portions are formed by shifting the longitudinal direction of the cross-sectional shape along the radial direction along the circumferential direction ,
Wire harness.

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