WO2014034591A1

WO2014034591A1 - Electric wire routing structure

Info

Publication number: WO2014034591A1
Application number: PCT/JP2013/072681
Authority: WO
Inventors: 彬友飯島; 涼太尾河; 丸井　崇義; 桂介加藤
Original assignee: 矢崎総業株式会社; スズキ株式会社
Priority date: 2012-08-27
Filing date: 2013-08-26
Publication date: 2014-03-06
Also published as: DE112013004193T5; JP2014045570A; CN104584351B; JP5860364B2; DE112013004193B4; CN104584351A

Abstract

Provided is an electric wire routing structure which increases rigidity of mounting to a vehicle, etc., to suppress vibration, and which can increase conveyance efficiency and assembling workability. An exterior member (1) is provided with a stiff first protector (2) provided on one side in the longitudinal direction of a wire (W), a stiff second protector (3) provided on the other side thereof, an inside corrugated tube (4) which covers the outside of the wire (W) across the first protector (2) and the second protector (3), and an outside corrugated tube (5) which covers the outside of the inside corrugated tube (4). One end (41, 51) of the inside corrugated tube (4) and the outside corrugated tube (5) is fixed to the first protector (2); the other end (42) of the inside corrugated tube (4) is fixed to the second protector (3) and the other end (52) of the outside corrugated tube (5) is supported to allow sliding in the longitudinal direction relative to the second protector (3).

Description

Electric wire routing structure

The present invention relates to an electric wire arrangement structure, and more particularly, to an electric wire arrangement structure provided with a protective member that covers and protects an electric wire.

Conventionally, in an automobile (particularly, an electric car or a hybrid car), an electric wire (wire harness) for connecting electric devices to each other and a protective member (an exterior member such as a corrugated tube) that covers and protects the electric wire are provided. An electric cable routing structure has been proposed (see, for example, Patent Documents 1 and 2).

As shown in FIG. 6, the wiring structure described in Patent Document 1 includes an engine, an inverter, and a motor installed in the engine room on the front side of the vehicle, and a battery on the floor floor and the trunk room on the rear side of the vehicle. Is provided in a hybrid vehicle 100 in which is installed, and includes an electric wire W that connects the inverter and the battery, and a double-structure corrugated tube 101 that covers the electric wire W. The dual structure corrugated tube 101 includes an outer corrugated tube 102 and an inner corrugated tube 103, is provided extending in the vehicle front-rear direction along the floor floor 104, and is fixed to the floor floor 104 via a fixing member 105. Has been. The outer corrugated tube 102 and the inner corrugated tube 103 are fixed to each other by tape winding at both ends of the outer corrugated tube 102.

As shown in FIG. 7, the cable routing structure described in Patent Document 2 includes an inner corrugated tube 111 that covers the outer side of the electric wire W, and an outer corrugated tube 112 that covers the outer side of the inner corrugated tube 111. The inner corrugated tube 111 is longer than the outer corrugated tube 112. Further, the inner corrugated tube 111 is fixed to the electric wire W by the tape 113 at both ends thereof, and the outer corrugated tube 112 is fixed to the inner corrugated tube 111 by the tape 114 at both ends thereof. The electric wire W is inserted into the inside from the slit 115 of the inner corrugated tube 111, and the inner corrugated tube 111 is inserted into the inside from the slit 116 of the outer corrugated tube 112 so that the positions of the

slits

115 and 116 do not coincide with each other. ° is shifted.

JP 2011-254614 A JP 2000-197237 A

However, in the conventional cable routing structure using a double-corrugated tube as a protective member, the corrugated tube itself has flexibility, so when it is fixed to the vehicle via a fixing member, etc. Since the unfixed corrugated tube vibrates between the fixing members, it is necessary to provide the fixing members at a fine pitch, and there is a problem that the number of parts increases and the assembling work is increased. In addition, when transporting the wire harness with the wires inserted through the corrugated tube to the vehicle assembly plant, the corrugated tube with flexibility is bent to make the package compact in order to increase the transport efficiency. It is usually done. However, if both ends of the inner corrugated tube are fixed to the electric wire and both ends of the outer corrugated tube are fixed to the inner corrugated tube as in the conventional double structure corrugated tube, the inner corrugated tube is bent between the inner and outer corrugated tubes. There is also a problem that the generated shape difference cannot be absorbed, the curvature of bending becomes small, and the conveyance efficiency cannot be sufficiently increased.

The present invention has been made in view of the above points, and an object thereof is to provide an electric cable routing structure capable of suppressing vibration by increasing attachment rigidity to a vehicle or the like, and improving transport efficiency and assembly workability. .

In order to solve the above-mentioned problem, the electric wire routing structure of the present invention described in claim 1 includes an electric wire extended and extended from one side to the other side, and protection means for covering and protecting the electric wire, The protection means includes a hard one-side protective member provided on one side of the intermediate position of the electric wire and a hard member provided on the other side of the intermediate position of the electric wire. A first flexible member having flexibility covering the outside of the electric wire across the other side protective member, the one side protective member and the other side protective member, and the one side protective member and the other side protection And a second flexible member having flexibility covering the outside of the first flexible member, and one end of the first flexible member is fixed to the one-side protective member. And the other end is fixed to the other protection member, and the second flexible member is With its one end portion is fixed to the one side protection member, characterized in that it is supported slidably in the longitudinal direction with respect to the other end the other side protective member.

The electric wire arrangement structure described in claim 2 is the electric wire arrangement structure according to claim 1, wherein the other end portion of the second flexible member is attached to the other side protection member via an adhesive tape, The other end is slidably supported by elastic deformation of the adhesive tape.

The electric wire arrangement structure described in claim 3 is the electric wire arrangement structure according to

claim

1 or 2, wherein the other-side protection member is formed of a cylindrical inner peripheral surface by the first flexible member. The second flexible member is formed by the other-side locking portion that locks and fixes the other end of the second-side locking portion, and the inner peripheral surface formed in a cylindrical or semi-cylindrical shape on one side of the other-side locking portion. And a slidable contact support portion that slidably contacts the other end portion.

The wire routing structure described in claim 4 is the wire routing structure according to any one of claims 1 to 3, wherein the one-side protection member is formed by an inner peripheral surface formed in a cylindrical shape. The second flexible member is formed by a first-side first locking portion that locks one end portion of the first flexible member, and an inner peripheral surface that is formed in a cylindrical shape on the other side of the first-side first locking portion. And a second locking portion on one side for locking one end of the member.

According to the first aspect of the present invention, it is provided with the hard one-side protection member and the other-side protection member, and the first flexible member and the second flexible member having flexibility provided over these. Since the protective member is configured, the rigid one-side protective member and the other-side protective member can increase the mounting rigidity of the protective means, and vibration when mounted on a vehicle or the like can be suppressed. Also, by fixing the hard one-side protection member and the other-side protection member to the vehicle or the like, the number of mounting points is reduced, and by forming a bracket for mounting the vehicle on these hard protection members, the parts It is possible to reduce the number of points and to reduce the work of assembling. Further, both end portions of the first flexible member are fixed to the one-side protection member and the other-side protection member, and one end portion of the second flexible member is fixed to the one-side protection member, while the second flexible member Since the end is slidably supported in the longitudinal direction with respect to the other-side protection member, the shape generated inside and outside when the first flexible member and the second flexible member provided in the inner and outer double are bent. The difference can be absorbed by the slide at the other end of the second flexible member. Accordingly, the first flexible member and the second flexible member are bent, and the whole is bent so that the one-side protective member and the other-side protective member are overlapped with each other, thereby making the packing form compact and improving the conveyance efficiency. Can do.

According to the second aspect of the present invention, the second end can be slidably supported with respect to the other side protection member by elastic deformation of the adhesive tape to which the other end of the second flexible member is attached. While preventing flapping of the other end of the flexible member and mixing of foreign matters, it is possible to absorb the difference between the inner and outer shapes when the first flexible member and the second flexible member are bent.

According to the third aspect of the present invention, the other-side locking member and the sliding contact support portion are formed on the other-side protection member, and the other one of the first flexible members is formed on the inner peripheral surface of the cylindrical other-side locking portion. The other side locking portion and the sliding contact support portion are locked by locking the end portion and slidingly supporting the other end portion of the second flexible member by the inner peripheral surface of the cylindrical or semi-cylindrical sliding contact support portion. Can cover and support the first flexible member and the second flexible member, respectively. Further, the sliding contact support portion is formed on one side of the other side locking portion, that is, the other end portion of the first flexible member locked by the other side locking portion is the back side of the other side protection member. Since it is provided extending to (the other side), it is possible to reliably prevent the electric wire from being exposed to the outside. Therefore, the other end portions of the first flexible member and the second flexible member covered with the other-side protection member are not exposed to the outside, and the exposure of the electric wire can be reliably prevented and protected. Further, it is possible to prevent foreign matters from entering the first flexible member and the second flexible member.

According to invention of Claim 4, the one side 1st latching | locking part and the one side 2nd latching | locking part are formed in the one side protection member, and the 1st side 1st latching | locking part each formed in the cylinder shape, and By locking the other end portions of the first flexible member and the second flexible member to the inner peripheral surface of the one-side second locking portion, the first flexible member and the second flexible member are secured by the one-side protection member. The member can be covered and supported. Furthermore, the one side second locking portion is formed on the other side of the one side first locking portion, that is, one end portion of the first flexible member locked by the one side first locking portion is one side. Since it extends and is provided in the back | inner side (one side) of the side protection member, it can prevent reliably that an electric wire is exposed outside. Therefore, each end portion of the first flexible member and the second flexible member covered with the one-side protective member is not exposed to the outside, and the exposure of the electric wire can be reliably prevented and protected. It is possible to prevent foreign matter from entering the first flexible member and the second flexible member also at the end on one side.

It is a top view which shows the electric wire wiring structure which concerns on one Embodiment of this invention. It is a top view which shows the protection member of the one side and the other side which comprise the said electric wire wiring structure. It is a top view which expands and shows the principal part of the said electric wire wiring structure. It is sectional drawing which shows the 1st and 2nd flexible member which comprises the said electric wire wiring structure. It is a top view which expands and shows the principal part of the said electric wire wiring structure further. It is a figure which shows the electric wire wiring structure which concerns on a prior art. It is a figure which shows the other electric wire wiring structure which concerns on a prior art.

Hereinafter, a wire routing structure according to an embodiment of the present invention will be described with reference to FIGS. The wire routing structure of the present embodiment is an automobile, in particular, an electric vehicle that runs with the driving force of an electric motor or a hybrid vehicle that runs with the driving force of both an engine and an electric motor. It is used as a structure for connecting between an inverter and a motor. This electric wire routing structure is configured to include an electric wire W that connects electrical devices and an exterior member 1 as a protection means that covers and protects the electric wire W, and the electric wire W covered with the exterior member 1 is For example, it is extended and extended in the front-rear direction of the vehicle along the floor under the floor of the automobile. And the battery installed in the trunk room etc. of the vehicle rear side, and the inverter installed in the engine room of the vehicle front side are connected by the electric wire W, and direct-current power from a battery is used as alternating current power to a motor via an inverter. It comes to be supplied.

As shown in FIG. 1, the exterior member 1 as a protection means includes a first protector 2 as a hard one-side protection member provided on one side (right side in the figure) of the middle position of the wire W, and the wire W Flexibility to cover the outside of the electric wire W across the second protector 3 as the hard other side protection member provided on the other side (left side in the figure) from the midway position, the first protector 2 and the second protector 3 The inner corrugated tube 4 (see FIGS. 3 to 5) as the first flexible member having the first and second protectors has the flexibility to cover the outer side of the inner corrugated tube 4 And an outer corrugated tube 5 as a second flexible member.

As shown in FIG. 2A, the first protector 2 includes a long and semi-cylindrical first protector body 21, and one end, an intermediate portion, and the other end of the first protector body 21.

Cover members

22, 23, and 24 attached to the sections. The first protector body 21 and the

cover members

22, 23, and 24 are hard members that are integrally molded from a synthetic resin. The first protector main body 21 has an engagement portion 25 provided at a plurality of locations along the longitudinal direction for engaging and fixing the

cover members

22, 23, 24, and a bracket 26 fixed to the floor of the vehicle. And an engaging boss 27 that is inserted into and fixed to the mounting portion of the floor and floor are integrally formed. The

cover members

22, 23, and 24 are each formed in a semi-cylindrical shape, and are attached to the first protector main body 21 by the engaging portion 25 so that a cylindrical cross section is formed.

As shown in FIG. 2B, the second protector 3 is divided into a long and semi-cylindrical second protector main body 31, and one side, an intermediate portion, and the other side of the second protector main body 31. It is a hard member provided with

cover parts

32, 33, and 34 provided. The second protector main body 31 and the

cover portions

32, 33, and 34 are connected via

hinge portions

32A, 33A, and 34A, and are integrally formed from a synthetic resin. The second protector main body 31 is provided at a plurality of locations along the longitudinal direction thereof, engaging portions 35 for engaging and fixing the

cover portions

32, 33, 34, and two locations fixed to the vehicle floor. The bracket 36 is integrally formed. The

cover portions

32, 33, and 34 are each formed in a semi-cylindrical shape, are rotated about the hinge portions 32 </ b> A, 33 </ b> A, and 34 </ b> A, and are fixed to the second protector body 31 by the engaging portion 35. A cross section is formed.

As shown in FIGS. 3 and 4, the inner corrugated tube 4 and the outer corrugated tube 5 are each formed of a synthetic resin in a thin cylindrical shape, and alternately have circumferential grooves and ridges at equal pitches in the tube longitudinal direction. It protects the electric wire W which has in parallel and is rich in flexibility (flexibility) and is inserted inside. The inner corrugated tube 4 is formed longer than the outer corrugated tube 5, and one end 41 and the other end 42 of the inner corrugated tube 4 protrude from the outer corrugated tube 5, and are respectively inside the first protector 2 and the second protector 3. It is extended. The outer corrugated tube 5 has an inner diameter larger than that of the inner corrugated tube 4 and is configured to be slidable along the longitudinal direction with respect to the inner corrugated tube 4 inserted therein. Further, one end 51 and the other end 52 of the outer corrugated tube 5 are provided so as to extend inside the first protector 2 and the second protector 3, respectively.

Next, the connection structure of the first protector 2 and the second protector 3, and the inner corrugated tube 4 and the outer corrugated tube 5 will be described with reference to FIG. At the end of the first protector 2 (the end on the second protector 3 side), a first insertion portion having an inner diameter through which the one end 41 of the inner corrugated tube 4 is inserted into the first protector body 21 and the cover member 24. 61 and a second insertion portion 62 having an inner diameter through which the one end portion 51 of the outer corrugated tube 5 is inserted further on the second protector 3 side than the first insertion portion 61. On the other hand, at the end portion of the second protector 3 (the end portion on the first protector 2 side), the second protector body 31 and the cover portion 32 have an inner diameter through which the other end portion 42 of the inner corrugated tube 4 is inserted. A first insertion portion 71 is formed, and a second insertion portion 72 having an inner diameter through which the other end portion 52 of the outer corrugated tube 5 is inserted is formed in the second protector body 31.

As shown in FIGS. 2 (A) and 5 (A), three ribs 63 along the circumferential direction are formed on the inner peripheral surfaces of the first protector body 21 and the first insertion portion 61 of the cover member 24. ing. These ribs 63 constitute one-side first locking portions that engage the concave grooves of the one end portion 41 of the inner corrugated tube 4 so that the inner corrugated tube 4 is immovably fixed in the longitudinal direction. . Further, on the inner peripheral surface on the opening side of the second insertion portion 62, three ribs 64 are formed along the circumferential direction. These ribs 64 constitute one side second locking portions that fix the outer corrugated tube 5 immovably in the longitudinal direction by engaging with the concave groove of the one end portion 51 of the outer corrugated tube 5. .

As shown in FIGS. 2B and 5B, three ribs 73 are formed along the circumferential direction on the inner peripheral surfaces of the second protector body 31 and the first insertion portion 71 of the cover portion 32. ing. These ribs 73 constitute the other side locking portion that fixes the inner corrugated tube 4 so as not to move in the longitudinal direction by engaging with the concave groove of the other end portion 42 of the inner corrugated tube 4. Also, the inner peripheral surface of the second insertion portion 72 is not formed with a rib or the like, and a sliding contact support portion 74 that makes the other end portion 52 of the outer corrugated tube 5 slidably contact with the inner peripheral surface formed smoothly. It is configured. Accordingly, the outer corrugated tube 5 has one end 51 fixed to the second insertion part 62 of the first protector 2 and the other end 52 supported by the second protector 3 so as to be slidable in the longitudinal direction. Yes.

As the assembly procedure of the above-described cable routing structure and the assembly procedure to the vehicle, first, the electric wire W is passed through the inner corrugated tube 4, and the electric wire W and the inner corrugated tube 4 are inserted into the outer corrugated tube 5. Next, the electric wire W is arranged along the first protector main body 21, the one end portion 41 of the inner corrugated tube 4 is arranged to be engaged with the rib 63 of the first insertion portion 61, and one end portion of the outer corrugated tube 5 is arranged. 51 is engaged with the rib 64 of the second insertion portion 62, and then the

cover members

22, 23, 24 are engaged with the first protector body 21, and one end of the inner corrugated tube 4 and the outer corrugated tube 5 is engaged. The

parts

41 and 51 are fixed to the first protector 2.

Next, the electric wire W is arranged along the second protector main body 31, and the other end portion 42 of the inner corrugated tube 4 is arranged to be engaged with the rib 73 of the first insertion portion 71. After the end portion 52 is disposed along the sliding contact support portion 74 of the second insertion portion 72, the

cover portions

32, 33, 34 are engaged with the second protector body 31, and the other end portion of the inner corrugated tube 4 is engaged. 42 is fixed to the second protector 3 and the other end 52 of the outer corrugated tube 5 is slidably supported with respect to the second protector 3. Next, an adhesive tape is wound around the other end portion 52 and the second insertion portion 72 of the outer corrugated tube 5, and the other end portion 52 of the outer corrugated tube 5 is attached to the second protector 3, and above the second insertion portion 72. Close the opening with adhesive tape. This pressure-sensitive adhesive tape has appropriate elasticity and does not inhibit the sliding between the other end 52 of the outer corrugated tube 5 and the second protector 3 due to its elastic deformation.

After assembling the electric wire W and the exterior member 1 as described above, the inner corrugated tube 4 and the outer corrugated tube 5 are bent, the first protector 2 and the second protector 3 are overlapped, and the whole is folded in two. The first protector 2 and the second protector 3 are temporarily fixed with a packing material such as a tape, string, or film, and the electric wire W and the exterior member 1 are transported to the vehicle assembly factory in this folded state. At this time, even if the inner corrugated tube 4 and the outer corrugated tube 5 are bent, the difference between the inner and outer shapes thereof is absorbed by the slide of the other end 52 of the outer corrugated tube 5, so that no extra stress is generated at the bent portion. It is like that.

Next, after unpacking the electric wire W and the exterior member 1 conveyed to the assembly factory of the vehicle, the inner corrugated tube 4 and the outer corrugated tube 5 are extended to form a wiring shape, and the first protector body 21 and the second The exterior member 1 is fixed via the

brackets

26 and 36 and the engagement boss 27 under the floor of the vehicle so that the two protector main bodies 31 are on the lower side. Thereafter, the ends of the electric wires W led out from the first protector 2 and the second protector 3 are connected to a battery and an inverter, respectively, so that the electric wire routing structure (the electric wires W and the exterior member 1) is assembled to the vehicle. Is completed.

According to the present embodiment as described above, by fixing the first protector 2 and the second protector 3 molded from hard resin to the vehicle, the vibration of the electric wire W and the exterior member 1 can be suppressed, The number of attachment points by the

brackets

26 and 36 and the engagement boss 27 can be reduced, and the work for assembling can be reduced. Furthermore, since the other end 52 of the outer corrugated tube 5 is slidably supported with respect to the second protector 3, the inner and outer shape differences when the inner corrugated tube 4 and the outer corrugated tube 5 are bent are absorbed, The electric wire W and the exterior member 1 can be conveyed in the two-folded state in which the first protector 2 and the second protector 3 are overlapped, and the packing form can be made compact and the conveyance efficiency can be improved.

In addition, in the said embodiment, as an electric wire wiring structure, the 1st protector 2 and the 2nd protector 3 (protection member of one side and the other side), the inner corrugated tube 4 and the outer corrugated tube 5 (first and second) covering these are used. The second flexible member) and the exterior member (protecting means) 1 provided as an example, but the hard protective member is not limited to a pair (two), and may be composed of three or more, The 1st and 2nd flexible member should just be provided between each protection member. Furthermore, the electric wire routing structure of the present invention is not limited to being attached under the floor of the vehicle, but may be attached on the floor, in the engine room, or in the trunk room. Further, the first and second flexible members are not limited to those constituted by the inner corrugated tube 4 and the outer corrugated tube 5 as in the above-described embodiment, but are constituted by tubes having no circumferential unevenness. May be good. In this case, as a structure for fixing the end portion of the flexible member, instead of the

ribs

63, 64, 73 of the above-described embodiment, a fixing member such as a tie band, or an engaging means by a boss and an engaging hole. For example, an appropriate fixing structure may be used. Further, the present invention is not limited to a hybrid vehicle or the like, and can be applied to a wire harness of a gasoline vehicle (particularly, a vehicle having an idling stop function).

1 Exterior member (protection means)
2 1st protector (one side protection member)
3 Second protector (other side protection member)
4 Inner corrugated tube (first flexible member)
5 Outer corrugated tube (second flexible member)
41, 51 One

end part

42, 52 Other end part 63 Rib (one side first locking part)
64 ribs (one side second locking part)
73 Rib (other side locking part)
74 Sliding contact support part W Electric wire

Claims

An electric wire routing structure comprising an electric wire extending from one side to the other side and a protective means for covering and protecting the electric wire,
The protective means is
A hard one-side protection member provided on one side of the middle position of the wire;
A hard other side protection member provided on the other side of the middle position of the electric wire;
A first flexible member having flexibility covering the outside of the electric wire across the one side protective member and the other side protective member;
A second flexible member having flexibility covering the outside of the first flexible member across the one side protective member and the other side protective member;
With
The first flexible member has one end fixed to the one-side protection member and the other end fixed to the other-side protection member.
One end of the second flexible member is fixed to the one-side protection member, and the other end is supported slidably in the longitudinal direction with respect to the other-side protection member. Electric wire routing structure.
The other end of the second flexible member is attached to the other protective member via an adhesive tape,
The wire routing structure according to claim 1, wherein the other end is slidably supported by elastic deformation of the adhesive tape.
The other side protection member is
The other side locking portion for locking and fixing the other end portion of the first flexible member by an inner peripheral surface formed in a cylindrical shape;
A sliding contact support portion for slidingly contacting the other end portion of the second flexible member with an inner peripheral surface formed in a cylindrical or semi-cylindrical shape on one side of the other side locking portion;
The wire routing structure according to claim 1, wherein the wire routing structure is formed.
The one side protective member is
A first locking portion on one side for locking one end portion of the first flexible member by an inner peripheral surface formed in a cylindrical shape;
A first side second locking portion that locks one end portion of the second flexible member with an inner peripheral surface formed in a cylindrical shape on the other side of the one side first locking portion;
The electric wire routing structure according to any one of claims 1 to 3, wherein the electric wire routing structure is formed.