JP5459121B2 - Conductive path for vehicles - Google Patents

Description

  The present invention relates to a conductive path for a vehicle.

  A vehicle conductive path used for an electric vehicle or the like is routed from a device (for example, an inverter) provided in an engine room at the front of the vehicle body to a device (for example, a battery) disposed at the rear of the vehicle body.

  In order to shape this conductive path in advance along a predetermined routing route, a structure in which an electric wire is inserted inside a pipe (protector) having a wire protection function and the pipe through which the electric wire is inserted is bent along the routing route Has been put into practical use (for example, see Patent Document 1).

  However, since the conductive path for vehicles has a long overall length and is three-dimensionally bent, the conductive path using pipes has poor space efficiency during transportation and storage.

  One solution to this problem is disclosed in Patent Documents 2 and 3. This is because pipes that are difficult to bend are divided in the length direction, and the ends of adjacent pipes are connected by a flexible shield member, and the conductive path is folded at the location of the flexible shield member during transportation to the vehicle. This is a structure in which a separate protection member is attached so as to cover the flexible shield member when assembled.

JP 2004-171952 A JP 2006-302819 A JP 2006-302820 A

  However, in the structure disclosed in Patent Documents 2 and 3, it is necessary to prepare a protective member and a conductive path separately in the process of assembling a pre-made conductive path to the vehicle body, and a bolt tightening operation for attaching the protective member Is required, which complicates the work and increases the number of assembly steps.

  The present invention has been completed in view of the circumstances as described above, and improves the space efficiency during transportation and storage by bending the conductive path, and improves the efficiency of the work of assembling the conductive path to the vehicle. An object of the present invention is to provide a possible vehicle conductive path.

  In order to achieve the above object, the present invention provides a flexible electric wire and a plurality of electric wires that are accommodated to be separated from each other so that the electric wire is accommodated and a part of the accommodated electric wire is exposed. A non-flexible protective pipe, and a non-flexible joint member that is formed with a slit in the longitudinal direction, accommodates the exposed electric wire, and connects the adjacent protective pipes together. In the state where the adjacent wires are attracted so as to face each other so that the electric wires accommodated in the joint member cannot be accommodated in the joint member and are exposed, one end of the joint member is one of the protective pipes. It is the conductive path for vehicles characterized by holding.

  The joint member has a holding portion that holds an end portion of the protective pipe, and the holding portion is formed in a part of the slit in the longitudinal direction, and has a width smaller than the outer diameter of the protective pipe, and It is preferable to have a narrow part having a narrower slit width than the other part of the slit.

  The joint member is inserted into the holding portion so that an end portion of the protective pipe pushes the narrow portion, and after the end portion of the protective pipe is inserted into the holding portion, the joint member is pushed and widened. It is preferable that the holding portion holds the end portion of the protective pipe by returning the narrow portion to the original state by the spring property of the holding portion.

  The holding portion may include an inclined portion that is formed from the outside of the joint member toward the narrow portion, and is formed so that the width gradually decreases in a direction in which an end portion of the protective pipe is inserted.

  The inclined portion may be formed so that a part of the holding portion is bent and deformed so that a portion of the holding portion forming the narrow portion is rounded.

  A convex portion is formed on the outer periphery of the end portion of the protective pipe, and the holding portion is formed with a fitting groove that fits into the convex portion. When the joint member holds the protective pipe, The convex portion and the fitting groove are preferably fitted.

  A bent portion that is bent at a predetermined bending angle may be formed at an end portion of the protective pipe held by the joint member.

  ADVANTAGE OF THE INVENTION According to this invention, a conductive path can be bent, the space efficiency at the time of conveyance and storage can be improved, and the conductive path for vehicles which can improve the efficiency of the operation | work which attaches a conductive path to a vehicle can be provided.

It is a figure which shows the electrically conductive path for vehicles which concerns on this invention, (a) is a perspective view which shows the state when routed, (b) is a perspective view which shows a state when carrying and storing. It is a figure which shows an example of the electric wire used for this invention. It is sectional drawing which shows the structure of the routing member which concerns on this invention. It is a figure which shows the joint member which concerns on this invention, (a) is a front view, (b) is the sectional view on the AA line of (a).

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

  1 (a) and 1 (b) are diagrams showing a vehicle conductive path according to a preferred embodiment of the present invention, (a) is a perspective view showing a state when routed, and (b) is transporting. It is a perspective view which shows the state at the time of storing.

  As shown in FIGS. 1 and 2, the vehicle conductive path 1 according to the present embodiment accommodates a flexible electric wire 2 and the electric wire 2 so that a part of the accommodated electric wire 2 is exposed. A plurality of inflexible protective pipes 8 that are spaced apart from each other and slits 9 are formed in the longitudinal direction to accommodate the exposed electric wires 2 and to connect adjacent protective pipes 8 together. In the state where the flexible joint member 10 and the adjacent protection pipes 8 are attracted so as to face each other, the electric wires 2 accommodated in the joint member 10 cannot be accommodated in the joint member 10 and are exposed. One end of the joint member 10 holds one of the protective pipes 8. In addition, flexibility generally refers to a property that allows an operator to bend in the longitudinal direction by hand.

  The vehicle conductive path 1 according to the present embodiment electrically connects a device (for example, an inverter) and a device (for example, a battery), and accommodates the flexible wire 2 and the wire 2 inserted therethrough. And a routing member 3 that is rigid and bent in advance along the routing path in order to form the electric wire 2 along a predetermined routing path.

  As shown in FIG. 2, the electric wire 2 surrounds the outer periphery of a conductor 4 made of copper or aluminum alloy stranded wire with a synthetic resin insulating coating 5, and the outer periphery of the insulating coating 5 is made of a copper shield braid 6. The outer periphery of the shield braid 6 is surrounded by a synthetic resin sheath 7.

  All of the cross-sectional shapes of the conductor 4, the insulating coating 5, the shield braid 6, and the sheath 7 are substantially circular. Moreover, since the conductor 4, the insulation coating 5, the shield braid 6, and the sheath 7 constituting the electric wire 2 are all flexible, the electric wire 2 can be bent and deformed to the extent that it can be folded.

  In addition, the number of the electric wires 2 may be one or plural. Moreover, when the shield function is not required for the vehicle conductive path 1, the shield braid 6 and the sheath 7 may be eliminated. A plurality of conductors 4 and insulating coatings 5 may be arranged inside the shield braid 6.

  The routing member 3 includes a plurality of protective pipes 8 that are arranged apart from each other so that a part of the accommodated electric wire 2 is exposed, and a joint member 10 that connects the adjacent protective pipes 8 together. The

  The protective pipe 8 is made of a metal such as an aluminum alloy, and its cross-sectional shape is substantially circular. The protection pipe 8 is three-dimensionally bent so as to follow a predetermined routing route of the vehicle in a state where the electric wire 2 is inserted inside, that is, in a state where it is accommodated. As shown in FIGS. 1A and 1B, a bent portion 11 bent at a predetermined bending angle is formed on the end side of the protective pipe 8. By configuring in this way, there is an effect that a frictional force is generated between the electric wire 2 and the protective pipe 8 at the bent portion 11, and the protective pipe 8 is difficult to move with respect to the electric wire 2.

  Further, as shown in FIG. 3, a convex portion 12 formed by buckling the protective pipe 8 at a position on the end side of the protective pipe 8, more specifically on a tip side of the bent portion 11, is formed over the entire circumference. ing. A holding groove 14 is formed along the circumferential surface of the holding portion 13 on the distal end side of the joint member 10 described later, and the convex portion 12 of the protective pipe 8 described above attaches the joint member 10 to the protective pipe 8. In the mounted state, it is configured to be fitted with the holding groove 14. By configuring in this way, there is an effect that the joint member 10 becomes difficult to move with respect to the protective pipe 8. In addition, positioning at the time of connection is facilitated, and displacement of the protective pipe 8 and the joint member 10 due to vehicle vibration can be reduced. In the present embodiment, the convex portion 12 is formed on the entire outer periphery of the protective pipe 8, but only on a part of the outer periphery of the protective pipe 8 so as to fit only a part of the holding groove 14. It may be formed.

  As shown in FIGS. 4A and 4B, the joint member 10 includes a main body 15 and a holding portion 13 formed at the tip of the main body 15, and is made of stainless steel, brass, or the like. It is made of metal that has elasticity and is elastically deformable. The joint member 10 has a holding portion 13 that holds an end portion of the protective pipe 8, and the holding portion 13 is formed with a slit 9 in the longitudinal direction and formed in a part of the slit 9 in the longitudinal direction, A narrow portion 16 having a narrower width than the outer diameter of the protective pipe 8 and a narrower slit width than the other portion of the slit (the slit 9a of the main body portion 15) is provided. The main body portion 15 is formed in a substantially U shape in a sectional view, and the holding portion 13 is formed in a substantially Ω shape in a sectional view. That is, the slit width of the slit 9a of the main body portion 15 and the slit 9b of the holding portion 13 are different, and the slit 9b of the holding portion 13 is formed narrower. That is, the slit 9 b constitutes the narrow portion 16 of the slit 9. With this configuration, the holding portion 13 can hold the end of the protective pipe 8.

  The width of the narrow portion 16 may be about 20 to 80% of the outer diameter of the protective pipe 8. In the present embodiment, the outer diameter of the protective pipe 8 is φ30 mm and the width of the narrow portion 16 is the same. It was 15 mm. Moreover, the joint member 10 can hold | maintain one edge part of the adjacent protection pipe 8 only by forming the slit whose width | variety is narrower than the outer diameter of the protection pipe 8 over a longitudinal direction.

  Moreover, the slit 9 a of the main body 15 has a slit width larger than the diameter of the electric wire 2, and prevents the electric wire 2 from being damaged when the electric wire 2 is stored in the joint member 10. Further, when connected to the protective pipe 8, as described above, the holding groove 14 formed on the circumferential surface of the holding portion 13 and the convex portion 12 of the protective pipe 8 are configured to be fitted. .

  The joint member 10 was inserted into the holding portion 13 so that the end portion of the protective pipe 8 spreads the narrow portion 16, and the end portion of the protective pipe 8 was inserted after being inserted into the holding portion 13. The holding portion 13 holds the end portion of the protective pipe 8 by returning the narrow portion 16 to the original state by the spring property of the holding portion 13.

  In the present embodiment, the holding portion 13 of the joint member 10 is formed from the outside of the joint member 10 toward the narrow portion 16 and the direction in which the end of the protective pipe 8 is inserted (hereinafter referred to as the insertion direction as necessary). Also has an inclined portion 17 formed so that the width gradually decreases. By having the inclined portion 17, one end portion of the adjacent protective pipe 8 can be easily guided to the narrow portion 16, and insertion is facilitated. Further, it is possible to reduce the collapse of the holding portion 13 in the insertion direction due to the insertion force when one end portion of the adjacent protective pipe 8 is inserted into the narrow portion 16.

  Further, the inclined portion 17 is preferably formed so that a part of the holding portion 13 is bent and deformed so that a portion of the holding portion 13 forming the narrow portion 16 is rounded. By doing in this way, the durability of the electrically conductive path 1 for vehicles can be improved. This will be described below.

  Since a high-voltage current flows through the vehicle conductive path, international standards stipulate that orange paint is applied to the outer periphery of the conductive path. The application of this paint also serves to prevent corrosion caused by rainwater, snow melting agent, etc. (hereinafter, rainwater) of the protective pipe. Therefore, when this paint is peeled off, rainwater or the like comes into contact with the peeled portion, and the protective pipe is corroded. In the present invention, when the end portion of the protective pipe 8 is held by the holding portion 13, the portion forming the narrow portion 16 of the holding portion 13 and the end portion of the protective pipe 8 are in contact with each other. For this reason, when the part which forms the narrow part 16 of the holding | maintenance part 13 is formed sharply, said coating material may peel in the contact part. As a result, when rainwater or the like comes into contact with the portion of the holding portion 13 where the paint is peeled off, the protective pipe 8 is likely to corrode, and the durability may be reduced. Therefore, it is possible to reduce the possibility that the paint is peeled off by forming a portion that forms the narrow portion 16 of the holding portion 13 so as to bend and deform a part of the holding portion 13. Thus, the durability of the vehicle conductive path 1 can be improved.

  Even when only a slit having a width smaller than the outer diameter of the protective pipe 8 is formed in the longitudinal direction, the slit may be provided with an inclined portion, and the inclined portion is formed with the slit of the holding portion 13. You may form so that the part to do may be rounded.

  Next, the operation of the vehicle conductive path 1 according to the present embodiment will be described.

  When transporting or storing the vehicle conductive path 1, the joint member 10 is connected to only one of the adjacent protective pipes 8 (the adjacent protective pipes 8 are not connected to each other). Then, the protective pipes 8 are relatively displaced by bending and deforming the exposed electric wires 2. That is, one of the adjacent protective pipes 8 is detached from the holding portion 13 of the joint member 10, the adjacent protective pipes 8 are relatively displaced, and the routing member 3 is folded. As an example, as shown in FIG. 1 (b), by deforming the electric wire 2 into a substantially semicircular arc shape, the adjacent protective pipes 8 can be arranged so as to be arranged in parallel with each other. It is possible to reduce the space required for storage.

  When routing the vehicle conductive path 1 to the vehicle body, as shown in FIG. 1A, the bent electric wire 2 is substantially straight along the joint member 10 connected in advance to the protective pipe 8. By returning to the state, the protective pipe 8 on the side that is not connected to the joint member 10 is fitted into the holding portion 13 of the joint member 10, and the vehicle conductive path 1 has a shape along a predetermined route. At this time, the end of the protection pipe 8 is guided to the end of the joint member 10 by deforming the electric wire 2 along the joint member 10. Further, the protective pipe 8 is fitted inside the joint member 10 while expanding the slit 9 of the joint member 10, and the slit 9 that has been expanded at the same time as the fitting is completely restored by the spring property of the joint member 10. Thus, since the protective pipe 8 is held inside the joint member 10 and relative displacement is limited, a separate member such as a bolt or a lid is not required, and the protective pipe 8 and the joint member 10 are easily connected. be able to.

  As described above, according to the vehicle conductive path 1 according to this embodiment, the conductive path is bent to improve the space efficiency during transportation and storage, and the efficiency of the work for assembling the conductive path to the vehicle. Can be achieved.

  In the present embodiment, the slit width of the slit 9a of the main body portion 15 is made larger than the diameter of the electric wire 2 in consideration of preventing damage to the electric wire 2, but the sheath 7 has sufficient strength. When it exists, the slit width of the slit 9 a may be smaller than the diameter of the electric wire 2. By doing in this way, when the electric wire 2 is accommodated in the joint member 10 with slack and the vehicle conductive path 1 is disposed with the slit 9a facing downward, it is possible to prevent the electric wire 2 from drooping. is there.

  In the present embodiment, the straight joint member 10 is used. However, a bent one may be used according to the layout of the arrangement.

DESCRIPTION OF SYMBOLS 1 Vehicle conductive path 2 Electric wire 3 Arrangement member 8 Protection pipe 9 Slit 10 Joint member

Claims (7)

A flexible wire;
A plurality of inflexible protective pipes that are arranged to be spaced apart from each other so that a part of the accommodated electric wires are exposed while accommodating the electric wires;
A non-flexible joint member that is formed with a slit in the longitudinal direction, accommodates the exposed wire, and connects the adjacent protection pipes;
Have
By drawing the adjacent protective pipes so as to oppose each other, the one end of the joint member is connected to one side of the protective pipe in a state where the electric wires accommodated in the joint member cannot be accommodated in the joint member and are exposed. A conductive path for a vehicle characterized by being held. The joint member has a holding portion that holds an end portion of the protective pipe,
The holding part is formed in a part in the longitudinal direction of the slit, and has a narrow part whose width is narrower than the outer diameter of the protective pipe and whose slit width is narrower than other parts of the slit. The vehicle conductive path according to claim 1.   The joint member is inserted into the holding portion so that an end portion of the protective pipe pushes the narrow portion, and after the end portion of the protective pipe is inserted into the holding portion, the joint member is pushed and widened. 3. The vehicle conductive path according to claim 2, wherein the holding portion holds the end portion of the protective pipe by returning the narrow portion to the original state by the spring property of the holding portion.   The holding portion includes an inclined portion that is formed from the outside of the joint member toward the narrow portion, and is formed so that the width gradually decreases in a direction in which an end portion of the protective pipe is inserted. The vehicle conductive path according to claim 3.   5. The inclined portion according to claim 4, wherein the inclined portion is formed so as to bend and deform a part of the holding portion so that a portion of the holding portion forming the narrow portion is rounded. Conductive path for vehicles. A convex portion is formed on the outer periphery of the end portion of the protective pipe,
The holding portion is formed with a fitting groove that fits into the convex portion,
The vehicle conductive path according to claim 2, wherein when the joint member holds the protective pipe, the convex portion and the fitting groove are fitted.   The vehicle conductive body according to claim 1, wherein a bent portion that is bent at a predetermined bending angle is formed at an end portion of the protective pipe held by the joint member. Road.

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