JP5477222B2 - Conductive path for vehicles - Google Patents

Description

  The present invention relates to a vehicle conductive path used in a hybrid vehicle, an electric vehicle, and the like.

  As a conventional vehicle conductive path used for a hybrid vehicle, an electric vehicle or the like, for example, there is one described in Patent Document 1.

  The vehicle conductive path of Patent Document 1 is provided at an end portion on the connection side of a plurality of electric wires, a metal pipe having a shielding function through which the plurality of electric wires are inserted, and the metal pipe. And a cylindrical flexible shield member to be inserted. According to this vehicle conductive path, the shape of the vehicle conductive path can be maintained, and the cable can be protected from damage such as stepping stones.

  However, since the shape of the metal pipe of the vehicle conductive path of Patent Document 1 is determined in advance to a desired shape (layout) according to the vehicle type, the vehicle conductive path is transported or stored. There was a problem that a very large space was required, and transportation and storage costs were high.

  In order to solve this problem, there are vehicle conductive paths described in Patent Document 2 and Patent Document 3. For example, the vehicle conductive path described in Patent Document 2 includes a plurality of electric wires, a plurality of metal pipes that are inserted through the plurality of electric wires and arranged in the length direction, and a metal pipe. And a shield member having flexibility, and a protector covering the shield member having flexibility.

  According to the vehicle conductive paths of Patent Documents 2 and 3, the metal pipes are divided, and the shield member having flexibility is provided so as to connect them. It can be folded at the place where it is provided, saving space during transportation and storage. Further, at the time of attachment to the vehicle body, by attaching a protector (cylindrical member in Patent Document 3, hereinafter referred to simply as a protector) to the shield member, the shape of the vehicle conductive path at the position where the shield member is provided, and the shield member Can be protected.

Japanese Patent No. 3909963 JP 2006-302819 A JP 2006-302820 A

  However, the vehicle conductive paths described in Patent Documents 2 and 3 have a problem that the work process for attaching the protector is very troublesome.

  Further, in the vehicle conductive paths described in Patent Documents 2 and 3, since the protector is a separate body, for example, when carrying and storing a plurality of types of vehicle conductive paths, pairing work at the time of attachment is performed. However, there is a possibility that the protector may be lost during transportation, and an improvement is desired.

  Furthermore, in the vehicle conductive paths described in Patent Documents 2 and 3, the flexible portion between the metal pipes is variously deformed according to the layout according to the vehicle type at the time of attachment. Therefore, a protector having a different shape must be prepared for each shape of the flexible part at the time of attachment, and there is a problem that versatility is low.

  The present invention has been made in view of the above circumstances, and can contribute to space saving during transportation and storage, and can contribute to simplification of the work process during installation. The purpose is to provide a road.

  The present invention was devised to achieve the above object, and includes a plurality of power cables, a flexible shield member for collectively surrounding and shielding the plurality of power cables, and at least one Flexibility to connect a control cable, a plurality of metal pipes that can be formed into a desired shape in which the control cable is accommodated, and the metal pipes that are adjacent in the longitudinal direction of the control cable. The plurality of power cables arranged along the metal pipe, the connection shield member, the metal pipe and the connection shield member, and collectively surrounded by the shield member And a flexible resin tube that covers the periphery of the resin tube and the resin tube, and are adjacent to each other in the longitudinal direction of the control cable. A vehicle conductive path comprising: a shape holding member that regulates a bending direction of a flexible portion that is a portion between the metal pipes and holds the shape of the flexible portion in an arbitrary bent shape. is there.

  The shape holding member is provided between two cylindrical holders provided on the outer periphery of the resin tube so as to sandwich the flexible portion, and between the holders. And two plate-like members provided so as to be pivotably fixed and sandwiching the flexible portion from both sides.

  The two holders have protrusions protruding outward of the resin tube, and the plate-like member has an engagement hole for rotatably engaging the protrusion of one of the holders, and the other You may have the slide hole which accommodates the said protrusion of the said holder so that rotation is possible, and the said protrusion is slidably received.

  The slide hole is formed so that the protrusion can be held at an arbitrary position of the slide hole by friction between the protrusion and the slide hole, and the shape of the flexible portion can be held in an arbitrary bent shape. May be.

  The resin tube may be divided into at least two or more in the longitudinal direction.

  You may provide the coating layer which has a flexibility in the outer periphery of the said shield member, or at least one of the outer periphery of the said metal pipe and the said connection shield member.

  ADVANTAGE OF THE INVENTION According to this invention, it can contribute to the space saving at the time of conveyance and storage, and can provide the electrically conductive path for vehicles which can contribute to the simplification of the work process at the time of attachment.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the electrically conductive path for vehicles which concerns on one embodiment of this invention, (a) is a top view which shows an external appearance, (b) is a fracture surface figure which shows the internal structure. It is a top view at the time of folding the electrically conductive path for vehicles of FIG. It is the 3A-3A sectional view taken on the line of FIG. It is a perspective view which shows the power cable bundle used with the electrically conductive path for vehicles of FIG. (A)-(c) is a top view which shows the shape holding member used with the electrically conductive path for vehicles of FIG. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when the cable for control is accommodated in several metal pipes. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, (a) is a top view when shape | molding a metal pipe in a desired shape, (b) is the 7B-7B sectional view taken on the line. . It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when a braided shield for connection and a shield wire are attached to a metal pipe. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when a power supply cable bundle is put along the shape | molded some metal pipe and the braiding shield for a connection. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when a metal pipe and a power cable bundle are fixed with the tape material. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when a metal pipe, the braiding shield for connection, and the power cable bundle are covered with the corrugated tube. It is a figure explaining the manufacturing method of the electrically conductive path for vehicles of FIG. 1, and is a top view when providing a protection member and a corrugated tube for terminals, and providing a connector and a connection terminal in the edge part of a power cable and a control cable. .

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

  1A and 1B are diagrams showing a vehicle conductive path according to the present embodiment, in which FIG. 1A is a plan view showing an appearance, and FIG. 1B is a broken sectional view showing an internal structure thereof. 2 is a plan view when the vehicle conductive path of FIG. 1 is folded, and FIG. 3 is a cross-sectional view taken along line 3A-3A of FIG.

  The vehicle conductive path 1 according to the present embodiment includes at least a cable (here, a control cable) 3 and a plurality of metal pipes 5 that can be formed into a desired shape in which the cable 3 is accommodated. A shape that regulates the bending direction of the flexible portion 22 that is between the metal pipes 5 adjacent to each other in the longitudinal direction of the cable 3 and holds the shape of the flexible portion 22 in an arbitrary bent shape A holding member 25 is provided.

  Specifically, as shown in FIGS. 1 to 3, the vehicle conductive path 1 includes a plurality of power cables 2 and a braid as a shield member having flexibility to surround and shield the plurality of power cables 2. The shield 6, at least one control cable 3, a plurality of metal pipes 5 that can be formed into a desired shape in which the control cable 3 is accommodated, and a metal that is adjacent in the longitudinal direction of the control cable 3 The connecting braid shield 21 as a connecting shield member having flexibility to connect the pipes 5, the metal pipe 5, the connecting braid shield 21, the metal pipe 5 and the connecting braid shield 21 A corrugated tube as a flexible plastic tube that covers the periphery of a plurality of power cables 2 that are arranged alongside and collectively surrounded by a braided shield 6 And restricting the bending shape of the flexible portion 22 provided between the metal pipes 5 adjacent to each other in the longitudinal direction of the control cable 3 and the shape of the flexible portion 22. And a shape holding member 25 for holding in an arbitrary bent shape.

  In the vehicle conductive path 1, the control cable 3 is accommodated in a plurality of metal pipes 5, and the plurality of metal pipes 5 accommodating the control cables 3 are formed into a desired shape, thereby controlling the cable. The cable 3 is held in a desired shape, a plurality of metal pipes 5 are connected by a connecting braid shield 21, and a plurality of power cables 2 collectively surrounded by the braid shield 6 are formed into metal pipes 5. And the braided shield 21 for connection, and the periphery thereof is covered with the corrugated tube 4. The corrugated tube is a hollow tube with a bellows, and is also referred to as a slit tube or a flexible electric conduit.

  In the present embodiment, a case will be described in which a total of four cables, that is, three power cables 2 assuming a three-phase alternating current and one control cable 3 are used. As shown in FIG. 3, the power cable 2 is one in which the outer periphery of the center conductor 2a is covered with an insulator 2b. In this embodiment, the power cable 2 has an outer diameter of 7.0 mm. The control cable 3 is one in which the outer periphery of the center conductor 3a is covered with an insulator 3b. In the present embodiment, the control cable 3 has an outer diameter of 7.0 mm. The control cable 3 is used for, for example, a CAN (Controller Area Network).

  The braided shield 6 is formed, for example, by braiding metal wires made of copper or aluminum. From the viewpoint of weight reduction, it is desirable to use a braided shield 6 formed by braiding metal strands made of aluminum. The braided shield 6 serves as a shield that suppresses noise (electromagnetic waves) generated in the power cable 2 from being radiated to the outside and affecting devices mounted on the vehicle. In the present embodiment, the thickness of the braided shield 6 is 0.5 mm. Hereinafter, a plurality (three in this case) of power cables 2 collectively surrounded by the braided shield 6 is referred to as a power cable bundle 7. As shown in FIG. 4, in this embodiment, as the power cable bundle 7, a cable with a three-phase twisted collectively shielded braid in which three power cables 2 are twisted and the periphery thereof is collectively surrounded by a braided shield 6 is used. I made it.

  As the metal pipe 5, it is preferable to use lightweight and low-cost aluminum. The thickness of the metal pipe 5 is preferably 1 mm or more in order to maintain the strength. This is because if the thickness is less than this, the strength cannot be maintained and the vehicle conductive path 1 itself may be bent due to its own weight. The metal pipe 5 serves both as a role for holding the wiring shape in a desired shape and as a shield for the control cable 3. In the present embodiment, the metal pipe 5 has an inner diameter of 9.0 mm, an outer diameter of 12.0 mm, and a thickness of 1.5 mm.

  In the present embodiment, two metal pipes 5 are used, two metal pipes 5 are connected by a connecting braided shield 21, and two metal pipes 5 are connected by the connecting braided shield 21. The periphery of the control cable 3 is covered. Between the metal pipes 5 adjacent to each other in the longitudinal direction of the control cable 3, a flexible portion 22 having a flexibility that is not held by the metal pipe 5 is formed. The length of the two metal pipes 5 is such that the flexible portion 22 is formed at the substantially central portion of the vehicle conductive path 1 (so that the length becomes the smallest when folded at the flexible portion 22). It may be set as appropriate. Here, the case where two metal pipes 5 are used will be described, but three or more metal pipes 5 may be used. For example, when three metal pipes 5 are used, two flexible portions 22 are formed.

  The connecting braided shield 21 serves as a shield for the control cable 3 in the flexible portion 22. As the braided shield 21 for connection, like the braided shield 6, a braided metal wire made of copper or aluminum may be used. The connecting braided shield 21 is fixed to the metal pipe 5 by a metal band 23.

  In the vehicle conductive path 1, the power cable bundle 7 is disposed along the molded metal pipe 5 and the connecting braided shield 21, and the metal pipe 5 and the power cable bundle 7 are The tape material 8 is bound and fixed at a position separated by a predetermined interval in the longitudinal direction (the tape material 8 is omitted in FIG. 1B). At this time, since the braided shield 6 of the power cable bundle 7 is in contact with the metal pipe 5 and the connecting braided shield 21, it may be considered that they are worn by vibrations of the vehicle. It is possible to prevent this by providing a flexible coating layer made of resin on at least one of the outer periphery of 6 or the outer periphery of the metal pipe 5 and the connecting braided shield 21. In addition, when different metal materials are used for the braided shield 6 and the metal pipe 5 and the connecting braided shield 21 in this way, corrosion between dissimilar metals that occurs when they come into contact with water. It is also possible to prevent (galvanic corrosion).

  The tape material 8 used for bundling the metal pipe 5 and the power cable bundle 7 may be an adhesive tape or a non-adhesive tape, or a plastic. You may use a thing like a band. In the present embodiment, the tape material 8 is 0.5 mm thick.

The corrugated tube 4 is colored in advance in a predetermined color (orange indicating that it is a high voltage portion). The resin used for the corrugated tube 4 is not particularly limited, but it is desirable to use a resin having good heat resistance and flame retardancy. The resin used for the corrugated tube 4 preferably has chemical resistance in consideration of protection from chemicals (for example, CaCl ₂ as a snow melting agent). This is, for example, a snow-covered road seeded with CaCl ₂ when the vehicle travels, because the CaCl ₂ to reduce a corrugated tube 4 attached to the corrugated tube 4 is damaged.

  In addition, the corrugated tube 4 takes into consideration the protection of the plurality of power cables 2 collectively surrounded by the braided shield 6 and at least one control cable 3 from external interferences (for example, stepping stones), It is desirable that the resin used for the corrugated tube 4 has such a strength that it can be protected from external interferences.

  In this embodiment, the corrugated tube 4 is used as a flexible resin tube. However, the corrugated tube 4 is used for the vehicle conductive path 1 because of its advantage of a large surface area and good heat dissipation. Is desirable. In the present embodiment, the corrugated tube 4 has an oval shape in cross-sectional view (a shape composed of two parallel straight lines and two arc-shaped curves connecting the ends of both straight lines). Was used. The resin tube is not limited to the corrugated tube 4, and any tube may be used as long as it is a flexible resin or rubber tube.

  In the present embodiment, the corrugated tube 4 is divided into at least two in the longitudinal direction. Here, the case where the corrugated tube 4 is divided into two in the longitudinal direction will be described. The divided corrugated tubes 4 are connected by a grommet 24 that is a tube connecting member. The grommet 24 is made of rubber, for example. If the grommet 24 has a bellows structure, the corrugated tube 4 can be connected at the bent portion. By disposing the grommet 24 at the bent portion, it is possible to reduce the work time for passing the corrugated tube 4 through the bent portion.

  The connected corrugated tube 4 has a length that covers the entire two metal pipes 5 (a length slightly shorter than the total length of the two metal pipes 5 and the connecting braided shield 21). It is formed. At the end of the corrugated tube 4, the control cable 3 extending from the corrugated tube 4 and the power cable bundle 7 are branched. The branch portion is provided with a protective member (branch grommet) 10 made of rubber or the like for protecting the branch portion.

  Also, one end of a flexible shield wire 9 is electrically connected to the end of the metal pipe 5 (the end opposite to the side on which the connecting braided shield 21 is provided), and the shield The wire 9 covers the periphery of the control cable 3 extended from the end of the metal pipe 5. The shield wire 9 is composed of, for example, a braided shield, and the other end is electrically connected to a shield case of a device (not shown) to which the control cable 3 is connected. That is, the shield wire 9 serves both as a function of electrically connecting the metal pipe 5 to the shield case of the device and as a shield of the control cable 3 extending from the metal pipe 5.

  The control cable 3 and the shield wire 9 extending from the protective member 10 to the device side are accommodated in the terminal corrugated tube 11. A connection terminal 16 for connecting to a device is provided at the end of the control cable 3.

  On the other hand, the braided shield 6 extending from the end of the corrugated tube 4 is electrically connected to a shield case of a device (not shown) to which the plurality of power cables 2 are connected. The power cable bundle 7 extending from the protective member 10 to the device side is accommodated in the terminal corrugated tube 12. At the end of the power cable 2, a connector 13 for connecting to a device and a connection terminal 14 are provided.

  Now, the vehicle conductive path 1 regulates the bending direction of the flexible portion 22 which is a portion between the metal pipes 5 adjacent to each other in the longitudinal direction of the control cable 3, and the shape of the flexible portion 22 is controlled. A shape retaining member 25 that retains an arbitrary bent shape is further provided. In addition, the shape holding member 25 is abbreviate | omitted in FIG.1 (b).

  As shown in FIGS. 1 (a), 2, and 5 (a) to 5 (c), the shape holding member 25 has two tubes provided on the outer periphery of the corrugated tube 4 so as to sandwich the flexible portion 22. -Shaped holder 26 and two plates provided so as to span between both holders 26 and are rotatably fixed to both holders 26 so as to sandwich flexible portion 22 from both sides. The member 27 is provided. Although only one plate-like member 27 is shown in FIGS. 1, 2, and 5, two plate-like members 27 are provided so as to sandwich the corrugated tube 4.

  The holder 26 is a cylindrical body made of a resin such as POM (polyacetal). Projections 28 projecting radially outward (outside of the corrugated tube 4) from opposite positions are formed at the end portions of the holders 26 on the flexible portion 22 side. An attachment fitting 29 for attaching the vehicle conductive path 1 to the vehicle body is provided at the end of the holder 26 opposite to the flexible portion 22.

  The holder 26 and the mounting bracket 29 are conventionally used to attach the vehicle conductive path 1 to the vehicle body. In the vehicle conductive path 1, both ends of the corrugated tube 4 (the corrugated tube 4 after connection) Both ends are provided with holders 26 and mounting brackets 29, respectively. In the present invention, the shape holding member 25 is formed by using a conventionally used holder 26.

  As the plate-like member 27, one made of resin or one made of metal may be used. The plate-like member 27 includes an engagement hole 30 that rotatably engages the projection 28 of the holder 26 on one side (right side in FIG. 5A) and the holder 26 on the other side (left side in FIG. 5A). It has a slide hole 31 that engages the projection 28 in a freely rotatable manner and accommodates the projection 28 in a slidable manner. The slide hole 31 is formed in the shape of a long hole extending in the longitudinal direction when the flexible portion 22 is linear (see FIGS. 1A and 5A).

  As shown in FIGS. 1A and 5A, when the flexible portion 22 is linear, the protrusion 28 slides to the end portion side of the slide hole 31 (left side in FIG. 5A). Further, as shown in FIGS. 2 and 5B, when the flexible portion 22 is bent 180 degrees, the protrusion 28 slides to the center side of the slide hole 31 (lower side in FIG. 5B). When the vehicle conductive path 1 is transported or stored, the space can be saved if the flexible portion 22 is bent 180 degrees.

  Further, by sliding and rotating the projection 28 in the slide hole 31, the flexible portion 22 can be formed in an approximately S shape as shown in FIG. 5C, and the flexible portion 22 can be bent arbitrarily. It can be a shape. When the vehicle conductive path 1 is attached to the vehicle body, the flexible portion 22 can be linear, or the flexible portion 22 can be arbitrarily bent.

  The two plate-like members 27 are provided so as to sandwich the corrugated tube 4 from the direction in which the corrugated tube 4 is thin. That is, the two plate-like members 27 are provided so as to be sandwiched from the two straight sides of the oval corrugated tube 4 (so as to be sandwiched from the vertical direction in FIG. 3). By providing the plate-like member 27 in this way, the bending direction of the flexible portion 22 is restricted only to the direction in which the corrugated tube 4 is thick (the direction indicated by the arrow in FIG. 2).

  The slide hole 31 is formed so that the protrusion 28 can be held at an arbitrary position of the slide hole 31 by friction between the protrusion 28 and the slide hole 31 and the shape of the flexible portion 22 can be held in an arbitrary bent shape. The Thereby, after applying a force by hand and changing the bending shape of the flexible portion 22, if the hand is released, the flexible portion 22 is held in the same bent shape. Note that a locking mechanism may be provided on the plate-like member 27 so that the protrusion 28 can be held at an arbitrary position of the slide hole 31 by the locking mechanism.

  Next, the manufacturing method of the electrically conductive path 1 for vehicles is demonstrated.

  When manufacturing the vehicle conductive path 1, first, as shown in FIG. 6, the control cable 3 is passed through a plurality of (here, two) metal pipes 5, and FIGS. 7 (a) and 7 (b). As shown in FIG. 2, a plurality (two in this case) of metal pipes 5 passed through the control cable 3 are formed into a desired shape by mechanical bending (bender bending). When the metal pipe 5 is formed, in order to improve workability, a plurality of (here, two) metal pipes 5 are connected and fixed with clamps or the like so that they can be handled as one metal pipe. It is desirable to make it.

  After the metal pipe 5 is bent by a bender or the like and formed into a desired shape, the metal pipes 5 are connected to each other by a connecting braid shield 21 as shown in FIG. Then, the periphery of the control cable 3 between the metal pipes 5 is covered. The connecting braided shield 21 is attached to the metal pipe 5 by a metal band 23. Further, the shield wire 9 is connected to the end of the metal pipe 5 opposite to the side where the braiding shield 21 for connection is provided, and the shield wire 9 extends from the end of the metal pipe 5. The periphery of the control cable 3 is covered. The shield wire 9 is attached to the metal pipe 5 using a metal band 15.

  Then, as shown in FIG. 9, the power cable bundle 7 is arranged along the molded metal pipe 5 and the connecting braided shield 21, and as shown in FIG. The cable bundle 7 is bound and fixed with a tape material 8 at positions at a predetermined interval in the longitudinal direction.

  After fixing the metal pipe 5 and the power cable bundle 7, as shown in FIG. 11, the metal pipe 5 containing the control cable 3 and the power cable bundle 7 are covered with the corrugated tube 4. Here, since the corrugated tube 4 is divided into two in the longitudinal direction, the corrugated tube 4 divided from both ends of the metal pipe 5 and the power cable bundle 7 fixed by the tape material 8 is passed through, respectively. 4 are connected by a grommet 24. The grommet 24 is provided so that no gap is generated between the grommet 24 and the corrugated tube 4.

  After covering the metal pipe 5 and the power cable bundle 7 with the corrugated tube 4, as shown in FIG. 12, a protection member 10 is provided at a branching portion where the power cable bundle 7 and the control cable 3 are branched. The protective member 10 is provided so that no gap is generated between the protective member 10 and the corrugated tube 4. Further, the control cable 3, the shield wire 9, and the power cable bundle 7 extending from the protective member 10 to the device side are accommodated in the terminal corrugated tubes 11 and 12, and the connection terminal 16 is connected to the end of the control cable 3. The connector 13 and the connection terminal 14 are respectively provided at the end of the power cable 2.

  Thereafter, if the holder 26 (and the mounting bracket 29) is provided at an arbitrary position of the corrugated tube 4 and the shape holding member 25 is provided at the flexible portion 22, the vehicle conductive path 1 of FIG. 1 is obtained.

  The operation of the present embodiment will be described.

  In the vehicle conductive path 1 according to the present embodiment, the control cable 3 is accommodated in a plurality of metal pipes 5 and the metal pipe 5 accommodating the control cables 3 is formed into a desired shape. Thus, the control cable 3 is held in a desired shape, the metal pipes 5 adjacent to each other in the longitudinal direction of the control cable 3 are connected by the connecting braid shield 21, and the plurality of power cables 2 are braided. The power cable bundle 7 collectively surrounded by the shield 6 is arranged along the molded metal pipe 5 and the connecting braided shield 21, and the periphery thereof is covered with the corrugated tube 4, and further, the corrugated tube 4, the bending direction of the flexible portion 22, which is a portion between the metal pipes 5 adjacent to each other in the longitudinal direction of the control cable 3, is restricted, and the shape of the flexible portion 22 is assigned. It is provided with a shape-retaining member 25 for holding the bent shape.

  In the vehicle conductive path 1, the vehicle conductive path 1 can be folded at the flexible portion 22, which can contribute to space saving during transportation and storage. Although three or more flexible portions 22 can be formed, a sufficient effect can be expected by forming one or two flexible portions 22.

  Moreover, in the vehicle conductive path 1, since the shape holding member 25 is provided integrally with the corrugated tube 4, when the vehicle conductive path 1 is attached to the vehicle body, an operation of attaching a separate member such as a protector. Can be eliminated, and it is possible to contribute to the simplification of the work process during installation. Further, by providing the shape holding member 25 integrally with the corrugated tube 4, there is no possibility of problems such as loss of the shape holding member 25.

  Furthermore, in the vehicle conductive path 1, since the bending direction of the flexible portion 22 is restricted by the shape holding member 25, the work at the time of attachment is easier than in the case where the bending direction of the flexible portion 22 is not restricted. It becomes.

  Furthermore, in the vehicle conductive path 1, since the shape of the flexible portion 22 can be held in an arbitrary bent shape by the shape holding member 25, the bent shape of the flexible portion 22 is determined by the shape of the protector. Compared to conductive paths, it is highly versatile.

  Further, in the vehicle conductive path 1, the shape holding member 25 is constituted by two conventionally used holders 26 and two plate-like members 27, so that the shape holding member has a very simple structure. 25 can be realized, and the cost is low.

  Further, in the vehicle conductive path 1, a projection 28 is formed on the holder 26, and a slide hole 31 is formed on the plate-like member 27 so as to engage the projection 28 slidably and slidably. Since the protrusion 28 is held at an arbitrary position of the slide hole 31 by friction between the protrusion 28 and the slide hole 31, the shape of the flexible portion 22 is held in an arbitrary bent shape with a simple structure. Is possible.

  Further, in the vehicle conductive path 1, only one of the two holes 30, 31 that engage the projection 28 of the holder 26 is the slide hole 31 in the plate-like member 27, so that the shape holding member 25 is positioned. Easy to do.

  Moreover, in the vehicle conductive path 1, the corrugated tube 4 is divided into at least two or more in the longitudinal direction.

  In the conventional conductive path for a vehicle that does not divide the corrugated tube 4, when there are many bent portions, if the corrugated tube 4 is passed from one end, a larger insertion force is required closer to the other end, and the insertion work takes time. It takes. On the other hand, in the vehicle conductive path 1 of the present invention, the corrugated tube 4 is divided, so that each corrugated tube 4 can be inserted from both ends, the insertion work can be facilitated, and the working time can be reduced. Can be shortened. For example, when the corrugated tube 2 is divided into two, the time for the insertion work can be reduced to about ½.

  Further, the vehicle conductive path 1 may be disposed at a high temperature place such as the engine room or the vicinity of the exhaust pipe, and the corrugated tube 4 disposed at such a high temperature position is required to have heat resistance. . In a conventional conductive path for a vehicle in which the corrugated tube 4 is not divided, even if a part of the corrugated tube 4 becomes high temperature, the entire corrugated tube 4 must be heat resistant, and the cost becomes very high. On the other hand, since the corrugated tube 4 is divided in the vehicle conductive path 1 of the present invention, the corrugated tube 4 having a heat resistance specification (for example, made of continuous 125 ° C. heat-resistant nylon) is used only at a high temperature portion. In other parts, it is possible to use an inexpensive normal corrugated tube 4 (for example, made of continuous heat-resistant polypropylene at 95 ° C.), and the cost can be greatly reduced. For example, when the heat resistant corrugated tube 4 is used for 1/3 of the total length, the cost of the corrugated tube 4 can be reduced to about 2/3 as compared with the case where the whole is heat resistant.

  In the vehicle conductive path 1, the metal pipe 5 and the power cable 2 that house the control cable 3 are housed in the corrugated tube 4 that has been colored in advance, so that the conventional metal pipe is painted. It becomes possible to omit the painting process of performing. As a result, the vehicle conductive path 1 that is easy to manufacture can be realized, and as a result, the manufacturing cost can be reduced. Further, in the present embodiment, since the metal pipe 5 is not coated, it is possible to realize the vehicle conductive path 1 that is easier to recycle than the conventional technique in which the metal pipe is painted.

  Furthermore, since the plurality of power cables 2 are collectively surrounded by the braided shield 6 in the vehicle conductive path 1, the braided shield 6 can suppress the emission of noise (electromagnetic waves) generated in the power cable 2. In addition, since the control cable 3 is accommodated in the metal pipe 5 (and the connecting braided shield 21), the control cable 3 is shielded twice as a result, and the power cable 2 Is no longer affected by the electrical signal propagating through the control cable 3. For this reason, it becomes possible to use an inexpensive cable without an outer conductor for shielding as the power cable 2 and the control cable 3, which leads to cost reduction.

  Further, in the vehicle conductive path 1, only the plurality of power cables 2 are collectively surrounded by the braided shield 6, and the plurality of power cables 2 collectively surrounded by the braided shield 6 are made of a metal pipe 5 containing the control cable 3. Since it is along the braided shield 21 for connection, the power cable 2 and the control cable 3 can be easily branched. Furthermore, since the branched power cable 2 is covered with the braided shield 6 in the vehicle conductive path 1, it is not necessary to provide a separate shield or the like at the branch portion, and the connection of the power cable 2 to the device is facilitated.

  In the vehicle conductive path 1, the control cable 3 extending from the metal pipe 5 can be connected to the device as it is, and the control cable 3 can be easily connected to the device. In this embodiment, the case where the shield wire 9 is provided at the end of the metal pipe 5 has been described. However, the metal pipe 5 is extended to the vicinity of the device to be connected, and the control cable 3 is exposed. It is also possible to omit the shield wire 9 by shortening the distance. When the shield wire 9 is omitted, the metal pipe 5 may be grounded using a separately prepared electric wire or the like.

  A configuration in which the metal pipe 5 and the power cable 2 are collectively covered with the braided shield 6 is also conceivable, but in this case, it becomes difficult to branch the power cable 2 and the control cable 3 as described above. Since the relationship between the power cable 2 and the metal pipe 5 is relatively free, the power cables 2 may come into contact with each other due to vibration, and problems such as wear and disconnection may occur remarkably. In the vehicle conductive path 1, the power cable 2 is collectively surrounded by the braided shield 6 and firmly fixed to the metal pipe 5 by the tape material 8, thereby reducing problems such as wear and disconnection due to vibration. be able to.

  Further, in the vehicle conductive path 1, the diameter of the metal pipe 5 can be reduced, so that even if the metal pipe 5 is bent with a small bending radius, the metal pipe 5 is made of metal compared to the conventional one surrounded by a thick metal pipe. The pipe 5 is difficult to buckle. Therefore, it is possible to reduce the thickness of the metal pipe 5 and reduce the waste of the material used for the metal pipe 5.

  Further, in the vehicle conductive path, there are cases where it is desired to make the length of either the height direction or the width direction smaller due to restrictions on the installation space. Since it is formed in a shape, the length of either the width-height direction or the width direction can be further reduced, and various layouts can be accommodated depending on the vehicle type.

  The present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the case where one control cable 3 is accommodated in the metal pipe 5 has been described, but there are two or more control cables 3 accommodated in the metal pipe 5. Alternatively, in addition to the control cable 3, a cable other than the control cable 3 such as an auxiliary power line may be accommodated in the metal pipe 5.

  In the above embodiment, the case where three power cables 2 are used assuming three-phase alternating current has been described. However, the number of power cables 2 is not limited to this. For example, two power cables 2 are assumed assuming two-phase alternating current. You may make it use the power cable 2 of a book.

  In the above embodiment, in the plate-like member 27, only one of the two holes 30 and 31 for engaging the projection 28 of the holder 26 is the slide hole 31, but both may be slide holes.

  Moreover, you may form uneven | corrugated shape which fits the unevenness | corrugation of the corrugated tube 4 in the part which contacts the corrugated tube 4 of the holder 26. FIG. By doing so, it is possible to reduce the movement of the holder 26 on the corrugated tube 4 or the removal of the holder 26 from the corrugated tube 4 when the shape of the flexible portion 22 is maintained. .

DESCRIPTION OF SYMBOLS 1 Vehicle electric circuit 2 Power cable 3 Control cable 4 Corrugated tube (resin tube)
5 Metal pipe 6 Braided shield (shield member)
7 Power cable bundle 21 Braided shield for connection (connection shield member)
22 Flexible part 25 Shape holding member

Claims (6)

Multiple power cables,
A flexible shielding member for collectively enclosing and shielding the plurality of power cables;
At least one control cable;
A plurality of metal pipes that can be formed into a desired shape in which the control cable is accommodated;
A connecting shield member having flexibility to connect the metal pipes adjacent in the longitudinal direction of the control cable;
Surrounding the metal pipe, the connection shield member, and the plurality of power cables arranged along the metal pipe and the connection shield member and collectively surrounded by the shield member A tube made of resin having flexibility,
The bending direction of the flexible portion which is provided in the resin tube and is a portion between the metal pipes adjacent in the longitudinal direction of the control cable is regulated, and the shape of the flexible portion is arbitrary. A shape holding member that holds the bent shape of
A conductive path for a vehicle, comprising: The shape holding member is
Two cylindrical holders provided on the outer periphery of the resin tube so as to sandwich the flexible portion;
Two plate-like members provided between the two holders, rotatably fixed to the two holders, and provided so as to sandwich the flexible portion from both sides;
The electrically conductive path for vehicles of Claim 1 provided with. The both holders have protrusions protruding outward of the resin tube,
The plate-like member rotatably engages the projection of one of the holders, and rotatably engages the projection of the other holder, and slidably accommodates the projection. The vehicle conductive path according to claim 2, further comprising: a slide hole.   The slide hole is formed so that the protrusion can be held at an arbitrary position of the slide hole by friction between the protrusion and the slide hole, and the shape of the flexible portion can be held in an arbitrary bent shape. The vehicle conductive path according to claim 3.   The vehicle conductive path according to claim 1, wherein the resin tube is divided into at least two in the longitudinal direction. The electrically conductive path for vehicles in any one of Claims 1-5 which provided the coating layer which has a flexibility in the outer periphery of the said shield member, or at least one of the outer periphery of the said metal pipe and the said connection shield member.

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