WO2018105425A1

WO2018105425A1 - Wire harness protecting member

Info

Publication number: WO2018105425A1
Application number: PCT/JP2017/042436
Authority: WO
Inventors: 直人月森
Original assignee: 住友電装株式会社
Priority date: 2016-12-09
Filing date: 2017-11-27
Publication date: 2018-06-14
Also published as: JP2018098847A

Abstract

Provided is a wire harness protecting member capable of improving workability during assembly while maintaining a function of protecting a wire harness. The opening portions of a pair of half-cylindrical portions 5a, 5b are fitted into each other to form a cylindrical protecting member 4 for covering the wire harness.

Description

Wire harness protection member

The present invention relates to a protective member that covers and protects a wire harness.

In electric vehicles, hybrid vehicles, and the like, electric power is supplied from a battery installed in a trunk room at the rear of the vehicle to an inverter installed in an engine room through a wire harness. Moreover, the high voltage alternating current power output from an inverter is supplied to various electric equipment via a wire harness.

Such a wire harness may be routed under the floor of the vehicle body. In such a case, the wire harness is covered and protected by a protective member, and is held linearly along the vehicle body.

The protective member is an aluminum pipe, a corrugated tube or the like, and the protective member inserted through the wire harness is fixed to the vehicle body with a clip at predetermined intervals.

JP 2013-243924 A

However, if the corrugated tube is used as a protective member, the work of inserting the wire harness into the corrugated tube installed under the floor of the vehicle body is complicated, and it is necessary to provide a wire harness that can be inserted into the corrugated tube. The degree of freedom of the specification is reduced.

If the wire harness is inserted from the outer periphery of the corrugated tube into the corrugated tube, the workability at the time of assembly is improved. The effectiveness as a protective member is reduced, for example, when rainwater or the like enters the corrugated tube or the wire harness is exposed.

The present invention has been made in view of such circumstances, and an object thereof is to provide a wire harness protection member capable of improving workability during assembly while maintaining the protection function of the wire harness.

A wire harness protection member that solves the above-described problem includes a cylindrical protection member, and the cylindrical protection member is formed by fitting the openings of a pair of half-cylinder portions that are molded of synthetic resin to each other. The harness is configured to cover the harness.

With this configuration, when the pair of half cylinder portions are fitted to each other from the outer peripheral surface side of the wire harness, a protective member that covers the wire harness is formed.
Further, in the above-described wire harness protection member, each half-cylinder part has a U-shaped cross section including a curved part and a non-curved part, and the non-curved part of each half-cylinder part corresponds to one half-cylinder part. It is preferable to include a fitting portion that forms the protective member having an oval cross section by superimposing the opening of the other half tube portion on the opening.

With this configuration, when the fitting portions of both the semi-cylindrical portions are overlapped and fitted to each other, a protective member having an oval cross section is formed.
Further, in the above-described wire harness protection member, the fitting portion of each semi-cylindrical portion includes a plurality of protrusions and a plurality of recesses extending in the circumferential direction on the outer peripheral surface and the inner peripheral surface of the opening, It is preferable that the plurality of ridges and the plurality of ridges are alternately and continuously formed in the longitudinal direction of the protective member.

With this configuration, when the ridge and the recess formed as the fitting portion in the opening portion are fitted to each other, the half tube portion is fitted.
In the wire harness protection member, it is preferable that the pair of half-cylinder portions have the same shape.

With this configuration, the protective member is formed by fitting the common half tube portion.
In the wire harness protection member, the clip that holds the protection member and is attached to the floor panel of the vehicle body preferably includes a base portion that engages with the ridge or the groove.

By this structure, the base part of a clip engages with a protruding item | line or a concave item, and the lateral displacement of the protection member with respect to a clip is suppressed.
Further, in the wire harness protection member, the fitting portion of the pair of half tube portions is fitted with the protrusion of the fitting portion of one half tube portion into the groove of the fitting portion of the other half tube portion. It is preferable to be configured to do so.

With this configuration, when the convex line of one half cylinder part is fitted into the concave line of the other half cylinder part, a protective member having an oval cross section is formed.
According to the wire harness protection member according to some aspects of the present invention, it is possible to improve workability during assembly while maintaining the protection function of the wire harness. Other aspects and advantages of the present invention will become apparent from the following description taken in conjunction with the drawings, which illustrate examples of the technical spirit of the present invention.

Schematic which shows the usage example of the protection member of one Embodiment. The perspective view which shows the protection member which attached the clip. The side view which shows the protection member attached to the floor panel. The perspective view which shows the half cylinder part which comprises a protection member. The perspective view which shows the protection member which fitted the half cylinder part mutually. Sectional drawing which shows the protection member which accommodated the wire harness.

Hereinafter, an embodiment of a wire harness protection member will be described with reference to the drawings.
As shown in FIG. 1, electric power is supplied from a battery 1 installed in a trunk room or the like at the rear of the vehicle to an inverter 2 installed in an engine room or the like via a wire harness 3. Moreover, the high voltage alternating current power output from the inverter 2 is supplied to various electric equipment via a wire harness.

The wire harness 3 is routed under the floor of the vehicle body at an intermediate portion thereof, and is covered with a protective member 4 at the wiring portion under the floor. In addition to the wire harness 3 between the battery 1 and the inverter 2, a wire harness that connects the inverter 2 to various electric devices may be inserted into the protective member 4.

As shown in FIGS. 2 to 4, the protective member 4 is formed into a cylindrical body having an oval cross section by fitting a pair of

half cylinder portions

5a and 5b formed of synthetic resin into a U-shaped cross section. Has been.
More specifically, the

semi-cylindrical portions

5a and 5b are members of the same shape that are curved in a U-shaped cross section, and the outer circumferential surface and the inner circumferential surface are provided with convex and concave strips extending in the circumferential direction on the semi-cylindrical portion 5a, It is formed alternately at equal intervals in the longitudinal direction of 5b.

And the flat-shaped opening edge part opened to the U-shape of

half cylinder part

5a, 5b is formed as

fitting part

6a, 6b which made it possible to mutually fit a protrusion and a groove, and the fitting part 6a. , 6b are fitted together, as shown in FIG. 5, the protective member 4 is formed as a cylindrical body having an oval cross section.

2 and 3, clips 7 are attached to the protective member 4 at predetermined intervals in the longitudinal direction, and the protective member 4 can be held under the floor of the vehicle body via the clips 7. The clip 7 is formed of a synthetic resin, and the base end portion of the band portion 9 is integrally formed with the base portion 8, and the holding portion that holds the front end portion of the band portion 9 is formed on the base portion 8. Yes. Then, when the band portion 9 is wound around the protection member 4 and the tip end portion of the band portion 9 is held by the holding portion, the clip 7 is fixed to the protection member 4.

The base portion 8 has a tray portion 10 and a fitting projection 11 protruding from the tray portion 10 on the opposite side to the base portion 8.
As shown in FIG. 3, the clip 7 is held by the floor panel 12 when the fitting protrusion 11 is elastically fitted into the mounting hole 13 formed in the floor panel 12 of the vehicle body.

Next, the operation of the protection member 4 configured as described above will be described.
When the wire harness 3 is routed under the floor of the vehicle body, the U-shaped open end portions of the

half tube portions

5a and 5b are fitted from both sides of the wire harness 3 so as to cover the wire harness 3 passed under the floor. The

joint portions

6a and 6b are fitted to each other.

Then, as shown in FIG. 6, the wire harness 3 is accommodated in the protective member 4 that is a cylindrical body having an oval cross section. Then, when the band portions 9 of the clips 7 are fastened at predetermined intervals on the outer peripheral surface of the protection member 4 and the fitting protrusions 11 of each clip 7 are fitted into the mounting holes 13 of the floor panel 12, the protection member 4. Is held on the floor panel 12.

At this time, since the protection member 4 is fitted to each other with the

fitting portions

6a and 6b of the

half cylinder portions

5a and 5b being overlapped, linearity is secured along the floor panel 12 between the clips 7. Possible rigidity is ensured. And the wire harness 3 is protected in the protection member 4 hold | maintained linearly along the floor panel 12. FIG.

With the protective member 4 as described above, the following effects can be obtained.
(1) By forming the

fitting portions

6a and 6b formed in the openings of the pair of

half cylinder portions

5a and 5b formed in a U-shaped cross section, the protective member 4 having an oval cross section is formed. can do. Since the

fitting portions

6a and 6b are overlapped with each other, it is possible to easily ensure the rigidity for maintaining the linear shape.

(2) After routing the wire harness 3 below the floor panel 12, the

fitting portions

6 a and 6 b of the

half cylinder portions

5 a and 5 b are fitted to each other so as to cover the wire harness 3. It can be easily accommodated in the cylindrical protection member 4. Therefore, the wiring harness 3 can be easily routed and accommodated in the protective member 4.

(3) Since the protective member 4 is formed by overlapping the

fitting portions

6a and 6b of the

half cylinder portions

5a and 5b, the wire harness 3 is not exposed from the protective member 4. Further, intrusion of pebbles, mud, rainwater, etc. can be suppressed.

(4) Since the protrusions and recesses extending in the circumferential direction are continuously formed on the outer peripheral surface of the protection member 4, the base portion 8 of the clip 7 is engaged with the protrusions and recesses, and the protection member The lateral displacement of the clip 7 in the longitudinal direction of 4 can be prevented. Therefore, the protection member 4 can be stably held by preventing the protection member 4 from shifting in the longitudinal direction with respect to the floor panel 12. Further, when the clip 7 is attached to the protection member 4, the clip 7 can be easily positioned with respect to the longitudinal direction of the protection member 4.

(5) Since the

half cylinder portions

5a and 5b are made of common parts, the number of parts can be reduced.
(6) Since the flat

fitting parts

6a and 6b of the

half cylinder parts

5a and 5b are overlapped with each other, the dimension of the overlapping part of the

fitting parts

6a and 6b is sufficiently ensured and the rigidity of the protective member 4 is ensured. can do.

(7) Since the protective member 4 is formed in an oval cross section, an increase in the height dimension of the protective member 4 can be suppressed while accommodating a plurality of wire harnesses 3. Therefore, reduction in the minimum ground clearance of the vehicle body can be suppressed.

(8) Since the half-

cylinder portions

5a and 5b are molded of synthetic resin, the transportation cost to the production line can be reduced as compared with a metal metal pipe protective member.
In addition, you may change the said embodiment as follows.

-You may form

half cylinder part

5a, 5b with a different resin material.
-The cross-sectional shape of the protective member may be an elliptical shape or a perfect circular shape other than the elliptical cross-sectional shape.
-A fitting part is good also as fitting means other than a protruding item | line and a concave item.

-You may make it prevent the lateral slip with respect to a clip by providing a slip prevention means other than a protruding item | line and a groove item in the outer peripheral surface of a protection member.
-The outer surface of each half cylinder part is good also as a smooth surface.

The present disclosure includes the following configurations. The reference numerals of the constituent elements of the embodiment are given for the purpose of understanding but not limitation.
[Supplementary Note 1] The protective tube (4) for protecting the wire harness (3) includes a pair of half pipe members (5a, 5b) each having a U-shaped cross section. , One bending portion, and two parallel fitting walls between which the bending portion is sandwiched, and the pair of half pipe members includes the two parallel fitting walls of one half pipe member and the other The said protection tube (4) comprised so that the hollow space which can accommodate the said wire harness is divided by fitting the said two parallel fitting walls of the half pipe member of this.

[Appendix 2] The protective tube (4) according to Appendix 1, wherein the pair of half-pipe members (5a, 5b) are flexible members.
[Supplementary Note 3] The protective tube (4) according to Supplementary Note 1 or 2, wherein the pair of half pipe members (5a, 5b) is a synthetic resin molded body.

[Appendix 4] The protective tube (4) according to any one of appendices 1 to 3, which is a corrugated tube.
It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the technical spirit thereof. For example, some of the parts described in the embodiment (or one or more aspects thereof) may be omitted, or some parts may be combined. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

3 ... wire harness, 4 ... protection member (protection tube), 5a, 5b ... half tube part (half pipe member), 6a, 6b ... fitting part, 7 ... clip, 8 ... base part, 12 ... floor panel.

Claims

A cylindrical protective member is provided, and the cylindrical protective member is configured to cover the wire harness by fitting the openings of the pair of half-cylindrical parts molded with synthetic resin together. A characteristic wire harness protection member.
In the wire harness protection member according to claim 1,
Each half-cylinder part has a U-shaped cross section including a curved part and a non-bent part, and the non-bent part of each half-cylinder part has an opening of one half-cylinder part to the opening of the other half-cylinder part. A wire harness protective member comprising a fitting portion that forms the protective member having an oval cross section by overlapping the openings.
In the wire harness protection member according to claim 2,
The fitting portion of each semi-cylindrical portion includes a plurality of protrusions and a plurality of recesses extending in the circumferential direction on the outer peripheral surface and the inner peripheral surface of the opening, and the plurality of protrusions and the plurality of recesses. Is a wire harness protection member, which is formed alternately and continuously in the longitudinal direction of the protection member.
In the wire harness protection member according to any one of claims 1 to 3,
A wire harness protection member characterized in that the pair of half cylinder portions have the same shape.
In the wire harness protection member according to claim 3,
A wire harness protection member, comprising: a clip that holds the protection member and is attached to a floor panel of a vehicle body;
In the wire harness protection member according to claim 3,
The fitting part of the pair of half-cylinder parts is configured such that the protrusions of the fitting part of one half-cylinder part fit into the recesses formed in the fitting part of the other half-cylinder part. The wire harness protection member characterized by the above-mentioned.