JP2014162274A - Wiring device for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability in attachment of a wire harness to a vehicle.SOLUTION: In a wiring device for a wire harness, a wire harness is inserted into a metal shield pipe 5 to be arranged on a lower surface of a vehicle. The wiring device for the wire harness includes: holders H1 which are attached to the shield pipe 5 so as to move in a longitudinal direction and are fixed to stud bolts 18 provided at the vehicle side; and positioning parts 7 which are disposed on an outer peripheral surface of the shield pipe 5 sandwiching each holder H1 in the longitudinal direction. A distance between the positioning parts 7, which are provided sandwiching each holder H1, is set larger than a width dimension of the holder H1 and the holder H1 may move between the positioning parts 7.

Description

  The present invention relates to a wiring harness wiring device.

  Conventionally, in an electric vehicle or a hybrid vehicle, a wire harness that connects a battery and an inverter or the like is wired on the lower surface of the vehicle. In that case, the wire harness was inserted into a metal pipe to be protected from transmission of noise and pebbles jumping up from the ground. In addition, clamps are attached to the metal pipe at a plurality of locations, and the entire pipe is fixed by bolting the lower part of the vehicle. The following Patent Document 1 can be given as an example of such a thing.

JP 2010-2105010 A

  However, since the clamp is positioned on the outer peripheral surface of the metal pipe, there is a concern that bolting to the vehicle side becomes difficult if the mounting position of the clamp varies. As a countermeasure, the clamp can be mounted in a state where it can be freely moved in the longitudinal direction of the metal pipe. However, if such a countermeasure is simply taken, the clamp mounting position will be proper before tightening the bolt. There is a risk that the mounting position will deviate greatly. Then, the stroke amount for moving the clamp to the proper mounting position becomes large, and the workability is lowered.

  This invention is completed based on the above situations, Comprising: It aims at providing the wiring apparatus for wire harnesses which can improve the attachment workability | operativity of a wire harness.

  The wiring harness wiring device of the present invention is a wiring harness wiring device in which a wire harness is inserted into a metal shield pipe and routed on a lower surface of a vehicle, and moves in a longitudinal direction with respect to the shield pipe. A holder that can be attached and fixed to a receiving portion provided on the vehicle side, and a positioning portion that is arranged on the outer peripheral surface of the shield pipe with the holder sandwiched in the longitudinal direction. The distance between the positioning portions provided in the step is set to be larger than the width dimension of the holder, and the holder is movable between the positioning portions.

  According to the present invention, the holder is roughly positioned in the longitudinal direction by both positioning portions sandwiching the holder. Therefore, if the shield pipe is placed along the lower surface of the vehicle, the holder is generally positioned at the corresponding receiving portion on the vehicle side. Thereafter, the holder can be fixed to the receiving part by appropriately moving the holder between the positioning parts to achieve alignment with the receiving part. Thus, according to the present invention, the wire harness can be easily attached to the lower surface of the vehicle.

The schematic diagram which shows the vehicle by which the wiring apparatus of the wire harness which concerns on Example 1 was used. Enlarged view showing the situation where the shield pipe is attached to the bottom panel of the vehicle AA line sectional view of FIG. In Example 2, the enlarged view which shows the condition where the shield pipe is attached to the panel of the vehicle lower surface BB sectional view of FIG.

A preferred embodiment of the present invention will be described.
(1) The wiring harness wiring device of the present invention preferably has a configuration in which the positioning portion is a flange projecting along the circumferential direction on the outer peripheral surface of the shield pipe.
According to such a configuration, since the flange as the positioning portion is formed so as to protrude in the circumferential direction, the holder can be reliably positioned even if the position of the holder in the shield pipe changes in the circumferential direction. Can do.
(2) The positioning portion may be integrally formed with the shield pipe by bulge molding.
According to such a configuration, since the positioning portion can be formed integrally with the shield pipe, an increase in the number of parts can be avoided.
(3) Further, the holder is configured to include a pipe holding portion that fits and holds the shield pipe and a vehicle locking portion that can be locked to the receiving portion, and the pipe holding portion surrounds the outer peripheral surface of the shield pipe. An open state in which at least one location of the opening edge of the accommodation hole is divided and the shield pipe can be inserted into the accommodation hole from the divided location, and a closed state in which the shield pipe is held in the accommodation hole. It is good also as a structure which can be displaced between.
According to such a structure, a holder can be retrofitted between positioning parts. In the operation of attaching the holding tool to the shield pipe, first, the part of the holding hole of the holding tool is opened, and the shield pipe is inserted into the receiving hole from here. Then, if the accommodation hole is closed, the holder is attached to the shield pipe.

  Next, Embodiments 1 and 2 embodying the wiring harness wiring device of the present invention will be described with reference to the drawings.

<Example 1>
As shown in FIG. 1, the wire harness routing device according to the first embodiment is applied to a hybrid vehicle (it can also be applied to an electric vehicle). A battery 2 is mounted at the rear of the hybrid vehicle 1, and an inverter unit 3 and a motor unit (not shown) to which power from the battery 2 is supplied via the inverter unit 3 are mounted in the engine room E. ing. And the battery 2 and the inverter unit 3 are connected by the wiring harness wiring apparatus of the first embodiment.

  The wire harness according to the first embodiment is composed of a plurality of high-voltage electric wires 4, and these are accommodated in a single metal shield pipe 5.

  As shown in FIG. 1, the shield pipe 5 is bent into a crank shape as a whole along a predetermined routing route. The front end side is introduced into the engine room and connected to the inverter unit 3, and the rear end side is introduced into the vehicle and connected to the battery 2. The middle of the shield pipe 5 is arranged along the vehicle front-rear direction while being along the outer surface of the lower panel 6 of the vehicle. A plurality of holders H1 are attached to the shield pipe 5 at appropriate intervals, and the shield pipe 5 is fixed to the lower panel 6 by these holders H1. Each holder H1 is arranged at an appropriate interval in the length direction with respect to the shield pipe 5.

  In addition, as shown in FIG. 2, positioning portions 7 are provided at the locations where the holders H <b> 1 are arranged in the shield pipe 5, so as to roughly define the attachment positions of the holders H <b> 1. A pair of positioning portions 7 is provided at each placement location of each holder H1. Each positioning part 7 which makes a pair is opposed to the outer peripheral surface of the shield pipe 5 at a predetermined interval in the length direction. Each positioning portion 7 is a flange protruding from the outer peripheral surface of the shield pipe 5 and is formed continuously over the entire circumference. Each positioning portion 7 is formed by a known bulge forming method. As shown in FIG. 2 in an enlarged manner, the top edge of each positioning portion 7 is rounded, and the skirt portion continuing to the general surface of the shield pipe is also curved in an arc.

Next, the holder H1 will be described (see FIG. 3). The entire holder H1 is integrally formed of a synthetic resin material. Each holder H1 includes a pipe holding portion 8 for fitting and holding the shield pipe 5 and a vehicle locking portion 9 locked on the lower panel 6 side of the vehicle. The pipe holding portion 8 and the vehicle locking portion 9 are in a positional relationship in parallel in a direction orthogonal to the length direction of the shield pipe 5.
An accommodating recess 10 is formed in the pipe holding portion 8 with a depth substantially equal to the outer diameter of the shield pipe 5. The inner peripheral surface of the bottom of the housing recess 10 is formed in an arc shape that fits the outer peripheral surface of the shield pipe 5 when the entire holder H1 is viewed from the direction shown in FIG. 3 (the axial direction of the shield pipe 5). Has been. The housing recess 10 has an opening on the side facing the lower panel 6 when the entire holder H1 is attached to the vehicle, so that the shield pipe 5 can be fitted from the radial direction. The opening has a width that is slightly larger than the diameter. In the present embodiment, the housing recess 10 can be closed by the cover plate 11 so that the shield pipe 5 is prevented from falling off.
The cover plate 11 can be opened and closed by a hinge edge 12 which is an opening edge of the housing recess 10 and is formed on the side opposite to the vehicle locking portion 9, so that the housing recess 10 is fully opened. Displaceable between closed and closed states. The hinge edge 12 is formed at both ends of the pipe holding portion 8 in the length direction of the shield pipe 5.

  The cover plate 11 is formed with a width that is larger than the opening width of the receiving recess 10, and as shown in FIG. 3, a bendable lock piece 13 is formed at the edge opposite to the hinge edge 12. The lock piece 13 protrudes at a substantially right angle with respect to the lid plate 11, and a lock claw 14 protrudes inwardly at the tip portion. In the pipe holding portion 8, a groove portion 15 that receives the lock piece 13 when the receiving recess 10 is closed by the cover plate 11 is formed on the side opposite to the side on which the hinge edge is formed. An edge 16 is formed, and the locking plate 16 is held in a closed state by the locking edge 16 and the locking claw 14 being locked.

  As shown in FIG. 3, a rubber pressing portion 17 is integrally provided on the inner surface of the cover plate 11 by two-color molding. The inner peripheral surface of the pressing portion 17 has an arcuate shape so as to fit the outer peripheral surface of the shield pipe 5. In the state where the cover plate 11 is closed, the pressing portion 17 presses the shield pipe 5 in the compressed state, so that it is possible to absorb rattling due to vehicle vibration.

  Next, the vehicle locking portion 9 will be described. As shown in FIG. 3, stud bolts 18 (receiving portions) are welded to the lower surface panel 6 of the vehicle at positions corresponding to the positions where the respective holding tools H <b> 1 are disposed, and project downward from the lower surface panel 6. Yes. A bolt housing chamber 19 into which a stud bolt 18 is inserted is formed inside the vehicle locking portion 9. An insertion hole 20 into which a stud bolt 18 is inserted passes through a surface of the vehicle locking portion 9 that faces the lower panel 6, and communicates with the bolt housing chamber 19. Locking claws 21 that can be elastically locked to the threads of the stud bolt 18 are provided in the bolt housing chamber 19 in pairs in two upper and lower stages, with the stud bolt 18 being sandwiched in the radial direction. Such a locking claw 21 can be formed by making opposite side surfaces of the bolt housing chamber 19 into openings for die cutting. In the bolt housing chamber 19, a pair of posture holding pieces 22 are disposed on the opposite side of the insertion hole 20 with both the locking claws 21 sandwiched in the height direction. Both posture holding pieces 22 project horizontally and oppositely from the wall surface in the bolt housing chamber 19, and are sandwiched between the tips of the stud bolts 18 in a substantially abutting state. This avoids that the entire holding tool H1 is attached to the stud bolt 18 at an angle.

  By the way, in a state before the holding bolt H1 is inserted into the stud bolt 18 (a state before being fixed to the vehicle), sliding in the length direction with respect to the shield pipe 5 is allowed. As shown in FIG. 2, the width dimension of the holder (the maximum dimension in the direction facing the length direction of the shield pipe 5 when the holder H1 is attached to the shield pipe 5) is the L1 dimension. On the other hand, when the holder H1 is approached to one of the paired positioning portions 7 in a state before being fixed to the vehicle, the holder H1 interferes with the base portion of the positioning portion 7 and further increases. It can no longer be approached. When the distance between the portions that interfere with the holder H1 in the paired positioning portions 7 is L2, L2> L1 is set. Therefore, the holder H1 can move in the vehicle front-rear direction between the paired positioning portions 7 within a stroke range defined by L2-L1 = L. That is, when the holder H1 is positioned between the pair of positioning portions 7, the holder H1 is roughly positioned with respect to the stud bolt 18, and the positional displacement between the stud bolt 18 and the insertion hole 20 at this time is slightly increased. Can be absorbed in the range of the L dimension described above. In the first embodiment, both dimensions L1 and L2 are set to be equal between the holders H1 and any of the positioning portions 7 that make a pair.

  Next, the operation and effect of the first embodiment configured as described above will be described. Each high-voltage electric wire 4 is inserted into the shield pipe 5 prior to the wiring operation of the wire harness. Subsequently, the holder H <b> 1 is attached to each part of the shield pipe 5 between the paired positioning portions 7. That is, the cover plate 11 is opened and the shield pipe is stored in the housing recess 10. Thereafter, the cover plate 11 of each holder H1 is closed, and the lock claw 14 of the lock piece 13 and the locking edge 16 on the groove 15 side are elastically locked to lock the cover plate 11 in the closed state. In the state where the lid plate 11 is closed, the rubber pressing portion 17 is in a compressed state and presses the shield pipe 5. Further, at this time, since the outer peripheral surface of the shield pipe 5 conforms and is in close contact with the inner peripheral surface of the housing recess 10, the shield pipe 5 is stably held without rattling.

  Subsequently, an operation of fixing the shield pipe 5 to the lower surface panel 6 of the vehicle is performed. When the shield pipe 5 is placed along the lower panel 6 of the vehicle, the insertion hole 20 of each holding tool H1 is positioned so as to substantially match the tip of the corresponding stud bolt 18. At this time, even if there is a slight shift in the vehicle front-rear direction, in that case, the holder H1 can be appropriately slid and adjusted within the L dimension range between the paired positioning portions 7. The insertion hole 20 and the stud bolt 18 can be aligned. If the insertion hole 20 and the stud bolt 18 are aligned with each other in this way, the entire holding tool H1 is strongly pushed into the stud bolt 18. While the pressing of the holding tool H1 to the stud bolt 18 proceeds, each locking claw 21 gradually deepens the locking position with respect to the stud bolt 18 while repeatedly bending and returning between the crest and trough of the screw. As a result, if pushing is performed to the normal depth shown in FIG. 3, the two pairs of upper and lower locking claws 21 are engaged with the threads of the stud bolts 18 and are prevented from coming off. At the same time, since the tip end portion of the stud bolt 18 is sandwiched between the opposing posture holding pieces 22, the holder H <b> 1 is attached to the stud bolt 18 in a normal posture without being inclined.

  Thus, in the first embodiment, the length range in which each holder H1 can freely move with respect to the shield pipe 5 is between the corresponding positioning portions 7 (precisely, it interferes with the holder H1). (Between the parts that do). For this reason, the rough positioning is performed before the pushing operation to the stud bolt 18. Therefore, since the movement amount in the adjustment operation for accurate positioning of the insertion hole 20 and the stud bolt 18 is small, the fixing operation of the shield pipe 5 can be performed smoothly. Further, each positioning portion 7 is formed by integrally forming the shield pipe 5 by bulge processing, so that the number of parts is not increased and the processing is easy.

  Furthermore, in the first embodiment, when the shield pipe 5 is attached to the vehicle, the lid plate 11 is opposed to the lower surface panel 6 of the vehicle, so that the lid plate 11 is not inadvertently opened. Therefore, even if the locking claw 14 and the locking edge 16 are unlocked, the housing recess 10 is not fully opened, and the shield pipe 5 falls off. It can be avoided.

  Furthermore, since the pressing portion 17 of the cover plate 11 provides a cushion function for holding the shield pipe 5, the shield pipe 5 is not rattled even when vehicle vibration is transmitted, and the generation of abnormal noise is avoided. Can do.

<Example 2>
4 and 5 show the main part of a wiring device for a wire harness according to a second embodiment of the present invention. Although the positioning part 7 of Example 1 was a flange which continued over the whole periphery, each positioning part 23 of the holder H2 in Example 2 is divided into two in the circumferential direction. That is, as shown in FIG. 5, the positioning portion 23 is a flange piece separated into two pieces, and these are arranged symmetrically and on the same peripheral surface with respect to the center of the pipe on the outer peripheral surface of the shield pipe 5. . In the second embodiment, each flange piece is attached to the outer peripheral surface of the shield pipe 5 by brazing.

  Also in the second embodiment configured as described above, the same effects as those of the first embodiment can be exhibited.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the distance between the paired positioning portions 7 (L2 dimension) is set to a uniform dimension at the mounting position of the holders H1 and H2, but it may be different. For example, if the central portion in the length direction of the shield pipe 5 is used as a reference for the mounting position, the dimension between the positioning portions 7 that make a pair at this reference position does not allow the holders H1 and H2 to move. Also good. However, the distance dimension may be increased in order from the center to the end side.
(2) In relation to (1), in the above embodiment, the holders H1 and H2 have the same size, that is, the same size in the length direction of the shield pipe 5, but the length dimensions are different. Things may be used. In other words, the distance between the paired positioning portions 7 is made uniform so that the movement strokes of the holders H1 and H2 can be changed.
(3) Although the stud bolt 18 is exemplified as the receiving portion in the above embodiment, a hole penetrating the vehicle panel may be used instead. In that case, for example, a clip structure may be set on the holders H1 and H2 side so as to prevent the holes from being pulled out and locked in the holes.
(4) In the above embodiment, the holders H1 and H2 are configured to hold one shield pipe 5. However, a plurality of holders may be held at the same time. It is not limited to five.
(5) In the first embodiment, the case where the positioning portion 7 that is a flange is formed by bulge molding has been shown. However, the present invention is not limited to this, and a ring separate from the shield pipe 5 is used as a shield pipe. It may be fitted and fixed by welding or the like.

1 ... Hybrid vehicle 4 ... High voltage electric wire (wire harness)
DESCRIPTION OF SYMBOLS 5 ... Shield pipe 6 ... Bottom panel 7 ... Positioning part 8 ... Pipe holding part 9 ... Vehicle latching part 10 ... Housing recessed part 11 ... Cover plate 18 ... Stud bolt (receiving part)
23 ... Flange piece (positioning part)
H1, H2 ... retainer

Claims (4)

A wiring harness wiring device in which a wire harness is inserted into a metal shield pipe and routed on a lower surface of a vehicle,
A holder that is attached to the shield pipe so as to be movable in the longitudinal direction and is fixed to a receiving portion provided on the vehicle side;
A positioning portion disposed on the outer peripheral surface of the shield pipe with the holder sandwiched in the longitudinal direction;
An interval between the positioning parts provided with the holder interposed therebetween is set to be larger than a width dimension of the holding tool, and the holding tool is movable between the positioning parts. Wire harness wiring device.   2. The wiring harness routing device according to claim 1, wherein the positioning portion is a flange projecting along a circumferential direction on an outer peripheral surface of the shield pipe.   The wire harness routing device according to claim 2, wherein the positioning portion is integrally formed with the shield pipe by bulge molding. The holder is configured to include a pipe holding portion that fits and holds the shield pipe and a vehicle locking portion that can be locked to the receiving portion,
The pipe holding portion has an accommodation recess that surrounds the outer peripheral surface of the shield pipe, and at least one portion of the opening edge of the accommodation recess is divided so that the shield pipe can be inserted into the accommodation recess from the division location. The wire harness arrangement according to any one of claims 1 to 3, wherein the wire harness is displaceable between an open state in which the shield pipe is held and a closed state in which the shield pipe is held in the housing recess. Rope device.

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