WO2012086686A1 - シールド導電体 - Google Patents
シールド導電体 Download PDFInfo
- Publication number
- WO2012086686A1 WO2012086686A1 PCT/JP2011/079638 JP2011079638W WO2012086686A1 WO 2012086686 A1 WO2012086686 A1 WO 2012086686A1 JP 2011079638 W JP2011079638 W JP 2011079638W WO 2012086686 A1 WO2012086686 A1 WO 2012086686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- shield conductor
- shield
- deformed
- electric wire
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0487—Tubings, i.e. having a closed section with a non-circular cross-section
Definitions
- the present invention relates to a shield conductor.
- a shield conductor having a shield function is used when connecting devices such as an inverter device, a motor, and a battery.
- a shield conductor for example, the one described in Patent Document 1 is known.
- This shield conductor is configured by housing a plurality of electric wires in a metal pipe having a true circular outer periphery. The pipe is bent along the routing route. JP 2004-171952 A
- a shield conductor when a shield conductor is attached to a vehicle, there is a request that the space be used effectively. More specifically, when a metal pipe whose outer periphery is a perfect circle is disposed, for example, under the floor of a vehicle, at least a dimension corresponding to the outer diameter of the metal pipe is required in the height direction. There are restrictions on the height of the vehicle under the floor. For this reason, considerable arrangement is required to arrange the metal pipe. On the other hand, the side of the metal pipe may have a wider space than the space required to accommodate the metal pipe. Thus, according to the prior art, there is a problem that it is difficult to arrange the shield conductor in the vehicle by effectively using the space.
- the present invention has been completed based on the above circumstances, and an object of the present invention is to provide a shield conductor that can be arranged using space effectively.
- the present invention is a shield conductor, a metal pipe, an electric wire inserted through the pipe, a circular portion formed in the pipe and having a constant outer diameter in the circumferential direction of the pipe, and the pipe And a deformed portion formed in a position different from the circular portion in the extending direction of the pipe and having a short diameter portion and a long diameter portion having different outer diameters in the circumferential direction, and the circular portion includes the extending portion. Bent about direction.
- the shield conductor when the shield conductor is disposed, the side where the accommodation space of the shield conductor is relatively narrow is arranged so as to be in the radial direction (thickness direction) of the short diameter portion, and the space is relatively The wide side is arranged so as to be in the radial direction (thickness direction) of the long diameter portion.
- the shield conductor can be accommodated in a narrow space in the radial direction (thickness direction) of the short diameter portion, and the radial direction (thickness direction) space of the long diameter portion can be used.
- the shield conductor can be arranged by effectively using the space.
- the pipe when bending the deformed portion, the pipe can be bent relatively easily in the short diameter direction in the short diameter portion, but it is not easy to bend the pipe in the long diameter direction in the long diameter portion. For this reason, it seems that the degree of freedom of routing is restricted when routing shield conductors.
- the circular portion in this configuration, is bent in the extending direction of the pipe. Since it is easier to bend the circular portion in a three-dimensional direction than the deformed portion, the circular portion can increase the degree of freedom of routing while effectively using the deformed portion.
- the shield conductor can be arranged by effectively using the space.
- FIG. 1 is a plan view showing a shield conductor according to the first embodiment.
- FIG. 2 is a side view showing the shield conductor.
- FIG. 3 is a view showing a DD section and a FF section in FIG.
- FIG. 4 is a view showing a cross section taken along line EE of FIG.
- FIG. 5 is a plan view showing the molding apparatus.
- FIG. 6 is a side sectional view showing the molding apparatus.
- FIG. 7 is a front view showing the molding apparatus.
- FIG. 8 is a plan view showing a shield conductor according to the second embodiment.
- FIG. 9 is a view showing a state where the shield conductor is passed through the heat shrinkable tube.
- FIG. 10 is a diagram illustrating a state in which a braided wire is connected to the shield conductor according to the third embodiment.
- FIG. 11 is a cross-sectional view showing a flat electric wire used in the shield conductor according to the fourth embodiment.
- the shield conductor 10 of the present embodiment is routed between devices (not shown) such as a battery, an inverter, and a motor that constitute a power source for traveling in a vehicle such as an electric vehicle, for example.
- devices not shown
- Two wires 11 are provided between the battery and the inverter, and three wires 11 are provided between the inverter and the motor.
- positioned under the floor of the vehicle W between an inverter and a motor is demonstrated.
- FIG. 2 is used as a reference for the up and down direction, and for the left and right direction, the upper side of FIG.
- the shield conductor 10 includes three electric wires 11 and a pipe 20 through which the three electric wires 11 are inserted and having a shielding function.
- Each electric wire 11 is a covered electric wire having a round shape (circular cross section), and includes a core wire 11A and an insulating coating 11B covering the periphery of the core wire 11A, and no shield layer is provided.
- the core wire 11A is made of copper or a copper alloy, and a stranded wire obtained by twisting a large number of metal strands is used.
- the three electric wires 11 are led out of the pipe 20 with the terminal fittings 12 connected to the respective terminals.
- the terminal fitting 12 has a terminal connection part connected to the terminal on the other side and a wire connection part connected to the electric wire 11 integrally connected to the terminal connection part.
- the terminal connecting portion has a through hole, and a bolt shaft portion or the like can be inserted into the through hole.
- the electric wire connecting portion has a wire barrel that crimps and crimps the core wire 11A that is peeled off and exposed at the end of the electric wire 11 and an insulation barrel that is held from above the insulating coating 11B.
- the pipe 20 is made of metal (for example, aluminum, aluminum alloy, copper, copper alloy, etc.), and is formed to be elongated.
- the pipe 20 extends linearly and has a deformed portion 21 whose outer diameter is not constant, and a circular portion 24 having a constant outer dimension and curved in the extending direction of the pipe 20 (left and right direction in FIG. 1) ( 1 (range C in FIG. 1).
- the deformed portion 21 is formed on the front end side and the rear end side of the pipe 20. That is, the deformed portion 21 is formed at a position different from the circular portion 24 in the extending direction of the pipe 20.
- the deformed portion 21 includes a uniform portion 22 having a flat and flat cross-sectional shape (range of A1 and A2 in FIG. 1) and a deformed portion that is provided at a position continuous from the regular portion 22 to the circular portion 24 and whose cross-sectional shape gradually changes. 23 (range of B1 and B2 in FIG. 1).
- the shape of the fixed portion 22 is a generally flat shape (oval shape), and a portion having the shortest outer diameter in the cross section of the pipe 20 is a short diameter portion 22 ⁇ / b> A.
- a portion having a longest outer diameter dimension (a portion having an outer diameter different from the short diameter portion 22A) that is formed at a position orthogonal to the short diameter portion 22A in the circumferential direction of the pipe 20 is defined as a long diameter portion 22B.
- the outer diameter of the short diameter portion 22A is larger than the dimension obtained by adding the thickness of the short diameter portion 22A (upper and lower two sheets) to the diameter of the electric wire 11.
- the outer diameter of the long diameter portion 22B is a diameter that allows the three electric wires 11 to be inserted side by side, and the thickness of the long diameter portion 22B (two on the left and right sides) is adjusted to the size of the three electric wires 11 combined.
- the dimensions are slightly larger than the added dimensions.
- the deformed portion 23 is a portion formed when the cylindrical pipe is plastically deformed to the shape of the fixed portion 22, and is smoothly connected to the circular portion 24 from the fixed portion 22.
- the circular portion 24 is a portion in which the outer periphery has a perfect circular shape and a cylindrical (circular cross section) metal pipe is left without being deformed.
- the three electric wires 11 are arranged side by side in the fixed portion 22, and the arrangement of the three electric wires 11 gradually changes in the deformable portion 23 to reach the circular portion 24. Then, as shown in FIG. 4, the arrangement is such that an equilateral triangle is drawn when the centers of the electric wires 11 are connected.
- the end of the braided wire is connected to the end of the pipe 20 so as to be fitted.
- the pipe 20 and the braided wire can be connected by welding, soldering, caulking with a caulking ring, or the like.
- the pipe 20 is molded by cold rolling using the molding apparatus 30.
- the molding apparatus 30 includes a pair of rollers 31, 32, support members 33, 34 that pivotally support the rollers 31, 32, and one roller 32 that moves between the pair of rollers 31, 32.
- An adjustment mechanism 35 that adjusts the distance between the support member 33, 34 and the adjustment mechanism 35, a base portion 39 made of a thick plate material, and a drive unit (not shown) that rotates the rollers 31, 32, And an input unit (not shown) for driving the drive unit.
- Each of the rollers 31 and 32 has a cylindrical shape, and a concave surface 31A, 32A formed in a recess is formed in a groove shape over the entire circumference in the axial intermediate portion of the circular outer peripheral surface of each of the rollers 31 and 32.
- the concave surfaces 31A and 32A are curved with such a curvature that when the pair of rollers 31 and 32 are brought close to each other, the outer surface of the cylindrical pipe 20 is plastically deformed to form the deformed portion 21 (the deformed portion 23 and the shaped portion 22). is doing.
- Support members 33 and 34 are provided on the rollers 31 and 32, respectively, and rotatably support shafts protruding from both sides of the rollers 31 and 32.
- the lower end of one support member 33 is fixed to the base 39, and the other support member 34 (on the adjustment mechanism 35 side) is fixed to the adjustment mechanism 35.
- the adjustment mechanism 35 includes a fixed portion 36 fixed to the base portion 39, a movable portion 37 movable in the direction in which the rollers 31 and 32 are arranged with respect to the base portion 39, and a movable portion 37. And a roller position adjusting unit 38 that performs a rotation operation for moving the lens.
- the roller position adjusting unit 38 includes a shaft portion and a polygonal head, and the shaft portion is formed with a thread groove on the proximal end side, whereas the tip portion is not formed with a thread groove.
- the fixing portion 36 is formed with a screw hole portion, and the screw groove of the shaft portion of the roller position adjusting portion 38 is screwed therein.
- the movable portion 37 is formed with a circular through hole without a thread groove on the inner periphery, and the tip end portion of the shaft portion is rotatable in this through hole and fixed so as not to be relatively movable in the direction in which the rollers 31 and 32 are arranged.
- the movable portion 37 is integrated with the support member 34 on the near side. Accordingly, when the roller position adjusting unit 38 is rotated, the movable unit 37 is moved, and the roller 32 is also moved in the arrangement direction of the rollers 31 and 32 in conjunction with the movable unit 37.
- the base portion 39 is formed with an insertion hole 39A for the pipe 20 and serves as a passage for the pipe 20 passing between the concave surfaces 31A and 32A of the rollers 31 and 32.
- a metal pipe (not shown) that has a straight line over the entire length and has a constant outer diameter is prepared, and the roller position adjusting unit 38 of the forming device 30 is operated to oppose the rollers 31 and 32 (facing each other).
- the distance between the concave surfaces 31 ⁇ / b> A and 32 ⁇ / b> A) is increased to a length that allows the metal pipe to be inserted.
- the roller position adjusting portion 38 is operated to turn the concave surfaces 31A and 32A into the metal. Contact the pipe.
- the pair of rollers 31 and 32 rotate in a direction in which the metal pipe is wound around each other.
- the metal pipe is plastically deformed to form the deformed portion 23.
- the rotation of the roller position adjusting portion 38 is stopped, and the rollers 31 and 32 are rotated as they are to the end of the metal pipe to form the fixed portion 22.
- the deformed portion 21 (the deformed portion 23 and the fixed portion 22) in the same procedure on the opposite side of the metal pipe, the deformed portion 21 of the pipe 20 is formed, and the portion not plastically deformed is the circular portion 24. It is said.
- another molding machine may be provided in the lower stage and plastically deformed step by step.
- the bending process of the circular portion 24 will be described.
- the end portion on the circular portion 24 side is held and fixed by an arm (not shown), and the other deformed portion is fixed.
- the end on the circular portion 24 side is gripped by an arm (not shown), and one arm is moved to a position corresponding to the curvature (or inclination angle) of the circular portion 24 so that the circular portion 24 is curved.
- the pipe 20 is formed.
- the bending process of the circular portion 24 in the extending direction is not limited to this method, and the bending process can be performed by another known method.
- the pipe 20 formed in this way becomes the shield conductor 10 through which the three electric wires 11 are inserted.
- the electric wire 11 can be inserted either before or after the pipe 20 is processed.
- the radial direction of the short diameter portion 22A is the vertical direction
- the radial direction (thickness direction) of the long diameter portion 22B and the bending direction of the circular portion 24 are the horizontal direction (horizontal).
- the vehicle W is disposed (routed) under the floor of the vehicle W (a position exposed downward (opposite the road surface) on the lower surface side of the underfloor panel).
- the terminal fitting 12 at the end of each electric wire 11 is connected to a terminal such as another electric wire that extends into the vehicle W on the upper side.
- the shield conductor 10 includes a metal pipe 20, an electric wire 11 inserted through the pipe 20, a circular portion that is formed on the pipe 20 and has a constant outer diameter in the circumferential direction of the pipe 20. 24, and a deformed portion 21 which is formed at a position different from the circular portion 24 in the extending direction of the pipe 20 in the pipe 20 and has a short diameter portion 22A and a long diameter portion 22B having different outer diameters in the circumferential direction of the pipe 20.
- the circular portion 24 is bent in the extending direction of the pipe 20 (left and right direction in FIG. 1). In other words, the axis passing through the center of the circular portion 24 is bent.
- the side where the accommodation space of the shield conductor 10 is relatively narrow is arranged so as to be in the radial direction (thickness direction) of the short diameter portion 22A, and the space is relatively small.
- the shield conductor 10 is placed in a narrow space in the radial direction (thickness direction) of the short diameter portion 22A.
- the space in the radial direction (thickness direction) of the long diameter portion 22B can be used. Therefore, the shield conductor 10 can be disposed by effectively using the space.
- the pipe 20 when the deformed portion 21 is bent, the pipe 20 can be bent relatively easily in the short diameter direction of the short diameter portion 22A, but the pipe is bent 20 times in the long diameter direction of the long diameter portion 22B. Is not easy. For this reason, when routing the shield conductor 10, it seems that the freedom degree of routing is restricted.
- the circular portion 24 is bent in the extending direction of the pipe 20. Since the circular portion 24 is easier to bend in the three-dimensional direction than the deformed portion 21, the circular portion 24 increases the degree of freedom of routing while effectively using the deformed portion 21. Can do.
- the deformed portion 21 has a flat shape, a plurality of electric wires can be easily accommodated in the deformed portion, and can be arranged relatively compactly.
- the deformed portion 21 is formed by deforming the cylindrical pipe 20, the deformed portion 21 is deformed as compared with the case where the deformed portion 21 is formed using a mold or the like corresponding to the shape of the deformed portion 21.
- the part 21 can be easily formed.
- FIGS. 1 and 2 A second embodiment of the present invention will be described with reference to FIGS.
- the outer surface of the shield conductor 10 is covered with a heat shrinkable tube 40 as shown in FIG.
- the same components as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted.
- the heat shrinkable tube 40 is contracted by heating. Thereby, the heat shrinkable tube 40 is in close contact with the outer peripheral surface of the pipe 20.
- the heat shrinkable tube 40 is in close contact with the outer surface of the pipe 20, the outer surface of the pipe 20 can be protected by the heat shrinkable tube 40.
- the pipe 20 is made of one material such as an aluminum alloy.
- the pipe 50 includes the first member 51 on the inner surface side and the outer surface side.
- the second member 52 is made of a clad material superimposed.
- the material of the first member 51 is aluminum or an aluminum alloy, and the material of the second member 52 is iron or an iron alloy.
- the braided wire 53 is a copper alloy wire that is tin-plated, and is placed on the outer periphery of the second member 52 at the end of the pipe 50.
- the end of the pipe 50 (second member 52) and the braided wire 53 are connected by connection means such as soldering, welding, or caulking by caulking ring.
- the braided wire 53 is made of copper plated with tin. For this reason, when the end part of the pipe 50 made of aluminum or aluminum alloy is connected to the braided wire 53, electrolytic corrosion is relatively likely to occur.
- the braided wire 53 is connected to the second member 52 made of iron or iron alloy, which is less likely to cause electrolytic corrosion with respect to tin plating than aluminum or aluminum alloy, in the pipe 50. Therefore, compared to the case where the braided wire 53 and the first member 51 (aluminum or aluminum alloy) are connected, the occurrence of electrolytic corrosion can be suppressed.
- the flat electric wire 60 includes a flat conductor that has a generally flat shape by arranging a plurality of core wires 61 in parallel with each other in contact with each other, and a synthetic resin insulating coating 62 that covers the periphery of the flat conductor.
- the shield layer is not provided.
- the core wire 61 is formed by spirally twisting a large number of copper or copper alloy metal strands.
- the flat electric wire 60 having such a shape has a substantially rectangular cross section, the dead current is small, the surface area is large, and the heat dissipation is good, so that the energization current can be increased.
- the flat electric wire 60 has a short diameter side of the flat electric wire 60 arranged in the short diameter portion of the deformed portion and a long diameter side of the flat electric wire 60 arranged in the long diameter portion of the deformed portion in a pipe (not shown). Therefore, the pipe (not shown) has a longer diameter portion having a diameter corresponding to the cross-sectional shape and the number of the flat electric wires 60 and has a flatter shape.
- the place where the shield conductor 10 is disposed is under the floor of the vehicle W, it is not limited thereto, and may be another place in the vehicle W different from the under floor. Further, the present invention is not limited to the vehicle W, and may be applied to a device in which a shield conductor is arranged in addition to the vehicle W.
- the number of the deformed portions 21 and the circular portions 24 in the pipes 20 and 50, the length in the extending direction, the position in the total length, and the like are the routing paths of the electric wires 11 under the floor of the vehicle W in this embodiment.
- the number of the deformed portions 21 and the circular portions 24 according to the route, the length in the extending direction, and the total length It can be a position or the like.
- the pipe 20 is formed by deforming a cylindrical metal pipe by the forming apparatus 30, but is not limited thereto.
- the plate material may be bent in an annular shape and the end portions may be connected by welding or the like.
- the deformed portion 21 has a flat shape.
- the deformed portion 21 is not limited to a flat shape, and may be an oval shape that is not flat, a shape having a partially recessed portion, or the like. What is necessary is just the shape which has a diameter part and a long diameter part.
- the axis of the circular portion 24 is curved.
- the present invention is not limited to this, and the axis of the circular portion 24 may be bent.
- the technology disclosed in the present specification has been completed based on the above-described circumstances, and an object thereof is to provide a shield conductor that can be arranged using space effectively.
- the technology disclosed in this specification is a shield conductor, which is formed of a metal pipe, an electric wire inserted through the pipe, the pipe, and a constant outer diameter in the circumferential direction of the pipe.
- a circular portion, and a deformed portion formed in a position different from the circular portion in the extending direction of the pipe in the pipe and having a short diameter portion and a long diameter portion having different outer diameters in the circumferential direction, The circular portion is bent in the extending direction.
- the side where the accommodation space of the shield conductor is relatively narrow is arranged so as to be in the radial direction (thickness direction) of the short diameter portion, and the space is relatively
- the wide side is arranged so as to be in the radial direction (thickness direction) of the long diameter portion.
- the pipe when bending the deformed portion, the pipe can be bent relatively easily in the short diameter direction in the short diameter portion, but it is not easy to bend the pipe in the long diameter direction in the long diameter portion. For this reason, it seems that the degree of freedom of routing is restricted when routing shield conductors.
- the circular portion in this configuration, is bent in the extending direction of the pipe. Since it is easier to bend the circular portion in a three-dimensional direction than the deformed portion, the circular portion can increase the degree of freedom of routing while effectively using the deformed portion.
- the deformed portion has a flat shape. If it does in this way, in addition to being able to accommodate a plurality of electric wires easily in a deformed part, a shield conductor can be arranged comparatively compactly.
- the deformed portion is formed by deforming a cylindrical pipe. In this way, the deformed portion can be easily formed as compared with the case where the deformed portion is formed using a mold or the like corresponding to the shape of the deformed portion.
- the heat shrink tube is in close contact with the outer surface of the pipe. In this way, the outer surface of the pipe can be protected by the heat shrinkable tube.
- the end of the pipe is connected to a shield member connected to the pipe, and the pipe is made of a clad material in which a first member on the inner surface side and a second member on the outer surface side are overlapped,
- the second member is made of a material that is less likely to cause electrolytic corrosion with respect to the shield member than the first member, and the shield member covers the outer periphery of the second member at the end of the pipe. .
- electrolytic corrosion occurs when different types of metals are connected.
- the second member made of a material that is less likely to cause electrolytic corrosion with respect to the shield member than the first member. Therefore, the generation of electrolytic corrosion can be suppressed as compared with the case where the shield member and the first member are connected.
- the shield member is a braided wire
- the material of the first member is aluminum or aluminum alloy
- the material of the second member is iron or iron alloy.
- a braided wire is obtained by applying tin plating to copper, and therefore, when the end of an aluminum or aluminum alloy pipe is connected to the braided wire, electric corrosion tends to occur.
- the braided wire is connected to the outer surface side iron or iron alloy of the pipe. Therefore, compared with the case where the braided wire and aluminum or aluminum alloy are connected, the electric wire is connected. The occurrence of food can be suppressed.
- the electric wire is a flat electric wire configured by covering a flat conductor having a flat shape with an insulating coating, a short diameter side of the flat electric wire being arranged in a short diameter portion of the deformed portion, and a long diameter side of the flat electric wire being the deformed shape. It is arranged on the long diameter part of the part. In this way, it is possible to route the shield conductor using the space effectively while having the characteristics of a flat electric wire that has a large surface area and good heat dissipation and thus good power transmission characteristics.
- the shield conductor is disposed under the floor of the vehicle.
- the shield conductor can be arranged by effectively using the space.
Abstract
Description
11...電線
20,50...パイプ
21...異形部
22...定形部
22A...短径部
22B...長径部
23...変形部
24...円形部
30...成形装置
31,32...ローラ
31A,32A...凹状面
33,34...支持部材
35...調整機構
36...固定部
37...可動部
38...ローラ位置調整部
39...基台部
40...熱収縮チューブ
51...第1部材
52...第2部材
53...編組線
60...フラット電線
W...車両
本発明の実施形態1を図1ないし図7を参照して説明する。本実施形態のシールド導電体10は、例えば電気自動車等の車両内における走行用の動力源を構成するバッテリ、インバータ、モータなどの装置(図示せず)の間に配索されるものであり、バッテリとインバータ間では2本、インバータとモータ間では3本の電線11を備えて構成される。以下、本実施形態では、インバータとモータ間において車両Wの床下に配置(配索)される3本の電線11を備えたシールド導電体10について説明する。なお、上下方向については図2を基準とし、左右方向については、図1の上方を左方、下方を右方として説明する。
本発明の実施形態2を図8及び図9を参照して説明する。実施形態2は、図8に示すように、シールド導電体10の外面を熱収縮チューブ40で覆ってなる。上記実施形態と同一の構成については同一の符号を付して説明を省略する。
本発明の実施形態3を、図10を参照して説明する。上記実施形態と同一の構成については同一の符号を付して説明を省略する。
本発明の実施形態を、図11を参照して説明する。上記実施形態と同一の構成については同一の符号を付して説明を省略する。上記実施形態では、パイプ20,50には、丸形の電線11が挿通されるものであったが、実施形態4では、パイプに挿通される電線を扁平なフラット電線60としたものである。
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
(1)上記実施形態では、3本の電線11がパイプ20に挿通されることとしたが、これに限られず、2本又は4本以上であってもよい。
例えば車両にシールド導電体を取り付ける場合、スペースを有効に利用して配置したいという要請がある。詳細に説明すると、外周が真円形をなす金属製パイプを、例えば車両の床下などに配置する場合、高さ方向については少なくとも金属製パイプの外径分の寸法が必要になる。車両の床下においては高さ寸法に制約がある。このため、金属製パイプを配置するためには相当の工夫を要する。一方、金属製パイプの側方については、金属パイプを収容するために必要とされるスペースよりも、広いスペースが広がっている場合がある。このように、従来技術によると、スペースを有効に利用して、車両にシールド導電体を配置することが難しいという問題があった。
本明細書に開示された技術は、シールド導電体であって、金属製のパイプと、前記パイプに挿通される電線と、前記パイプに形成されると共に前記パイプの周方向について外径が一定の円形部と、前記パイプのうち前記パイプの延びる延び方向について前記円形部とは異なる位置に形成されると共に前記周方向について外径の異なる短径部及び長径部を有する異形部と、を備え、前記円形部は前記延び方向について曲がっている。
前記異形部は、扁平な形状である。このようにすれば、複数本の電線を異形部内に容易に収容できるのに加えて、比較的コンパクトにシールド導電体を配置することができる。
(本明細書に開示された技術の効果)
Claims (8)
- シールド導電体であって、
金属製のパイプと、
前記パイプに挿通される電線と、
前記パイプに形成されると共に前記パイプの周方向について外径が一定の円形部と、
前記パイプのうち前記パイプの延びる延び方向について前記円形部とは異なる位置に形成されると共に前記周方向について外径の異なる短径部及び長径部を有する異形部と、を備え、
前記円形部は前記延び方向について曲がっているシールド導電体。 - 前記異形部は、扁平な形状である請求の範囲第1項に記載のシールド導電体。
- 前記異形部は、円筒形状のパイプを変形させて形成されている請求の範囲第1項又は請求の範囲第2項に記載のシールド導電体。
- 前記パイプの外面には、熱収縮チューブが密着している請求の範囲第1項ないし請求の範囲第3項のいずれか一項に記載のシールド導電体。
- 前記パイプは、内面側の第1部材と外面側の第2部材とを重ね合わせたクラッド材からなり、
前記第2部材は、前記シールド部材に対して前記第1部材よりも電食が生じにくい材質が用いられており、
前記パイプの端部にはシールド部材に接続されており、
前記シールド部材は、前記パイプの端部にて前記第2部材の外周に被せられている請求の範囲第1項ないし請求の範囲第4項のいずれか一項に記載のシールド導電体。 - 前記シールド部材は編組線であり、前記第1部材の材質は、アルミニウム又はアルミニウム合金であるとともに、前記第2部材の材質は、鉄又は鉄合金である請求の範囲第5項に記載のシールド導電体。
- 前記電線は、扁平な形状のフラット導体を絶縁被覆により覆って構成されたフラット電線であり、
前記フラット電線の短径側が前記異形部の短径部に配され、前記フラット電線の長径側が前記異形部の長径部に配される請求の範囲第1項ないし請求の範囲第6項のいずれか一項に記載のシールド導電体。 - 請求の範囲第1項ないし請求の範囲第7項のいずれか一項に記載のシールド導電体は、車両の床下に配されているシールド導電体。
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RU2013128372/07A RU2013128372A (ru) | 2010-12-24 | 2011-12-21 | Экранированный проводник |
US13/991,480 US20130248038A1 (en) | 2010-12-24 | 2011-12-21 | Shield conductor |
CN2011800621834A CN103282974A (zh) | 2010-12-24 | 2011-12-21 | 屏蔽导体 |
EP11851473.6A EP2657946A4 (en) | 2010-12-24 | 2011-12-21 | SHIELDING LADDER |
KR1020137016039A KR20130088181A (ko) | 2010-12-24 | 2011-12-21 | 쉴드 도전체 |
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JP2010288003A JP2012138179A (ja) | 2010-12-24 | 2010-12-24 | シールド導電体 |
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EP (1) | EP2657946A4 (ja) |
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JP6772999B2 (ja) * | 2017-10-06 | 2020-10-21 | 株式会社オートネットワーク技術研究所 | シールド接続構造及びワイヤーハーネス |
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EP2657946A1 (en) | 2013-10-30 |
US20130248038A1 (en) | 2013-09-26 |
KR20130088181A (ko) | 2013-08-07 |
RU2013128372A (ru) | 2015-01-27 |
CN103282974A (zh) | 2013-09-04 |
EP2657946A4 (en) | 2014-05-28 |
JP2012138179A (ja) | 2012-07-19 |
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