WO2012086687A1 - シールド導電体 - Google Patents
シールド導電体 Download PDFInfo
- Publication number
- WO2012086687A1 WO2012086687A1 PCT/JP2011/079641 JP2011079641W WO2012086687A1 WO 2012086687 A1 WO2012086687 A1 WO 2012086687A1 JP 2011079641 W JP2011079641 W JP 2011079641W WO 2012086687 A1 WO2012086687 A1 WO 2012086687A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- diameter portion
- shield conductor
- deformed
- short diameter
- Prior art date
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 71
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000000465 moulding Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- 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
- H01B7/16—Rigid-tube cables
-
- 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
-
- 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
-
- 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
-
- 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
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.
- the shield conductor is configured by accommodating a plurality of electric wires in a metal pipe which is bent along a wiring path and whose outer periphery forms a true circle.
- JP 2004-171952 A 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 first short-diameter portion having a different outer diameter in the circumferential direction of the pipe,
- the first deformed portion having one long diameter portion and the first deformed portion of the pipe are formed at different positions in the extending direction of the pipe, and the second short diameter portion having a different outer diameter in the circumferential direction.
- a second deformed portion having a second long diameter portion wherein the first short diameter portion is formed at a position different from the second short diameter portion in the circumferential direction, and the first long diameter portion is The circumferential direction is formed at a position different from the second long diameter portion.
- the shield conductor when the shield conductor is arranged, for each deformed portion, the side where the space for accommodating the shield conductor is relatively narrow is arranged so as to be in the radial direction (thickness direction) of each short diameter portion. If the side where the space is relatively wide is arranged so as to be in the radial direction (thickness direction) of each major axis part, the radial direction (thickness direction) of each minor axis part is accommodated in the narrow space, and each major axis part The space in the radial direction (thickness direction) can be used. Therefore, the shield conductor can be arranged using the space effectively.
- each deformed portion can be bent relatively easily in the radial direction of each short diameter portion.
- the degree of freedom of wiring is less than that of a pipe having a circular outer periphery.
- the first short diameter portion is formed at a position different from the second short diameter portion in the circumferential direction of the pipe, and the first long diameter portion is different from the second long diameter portion in the circumferential direction of the pipe. They are formed at different positions.
- 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.
- the left side of FIG. 1 is made into the front, and the diagonally right lower side is made into back, and the up-down direction is demonstrated on the basis 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 terminal fittings 12 connected to the respective terminals.
- the terminal fitting 12 has a terminal connection portion connected to the counterpart terminal and a wire connection portion connected to the electric wire 11 integrally connected to the terminal connection portion.
- 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.), is provided on the front end side and the rear end side, extends linearly, and the first deformed portion 21 whose outer diameter is not constant. , 21 (range of A1 and A2 in FIG. 1) and a second deformed portion 24 (C in FIG. 1) that is provided on the intermediate portion side of the pipe 20 and extends in a curved (bent) direction and has a constant outer diameter. And a deformed portion 23 (range of B1 and B2 in FIG. 1) provided between the first deformed portion 21 and the second deformed portion 24 and having a shape whose cross-sectional shape is gradually deformed.
- metal for example, aluminum, aluminum alloy, copper, copper alloy, etc.
- the first deformed portion 21 has a flat (oval) cross-sectional shape. Specifically, as shown in FIG. 3, the shape of the first deformed portion 21 is a generally flat shape (oval shape), and the portion with the shortest outer diameter dimension in the cross section of the pipe 20 is the first.
- the short diameter portion 21A is formed at a position orthogonal to the first short diameter portion 21A in the circumferential direction of the pipe, and the portion having the longest outer diameter dimension (the outer diameter portion different from the first short diameter portion 21A) is the first.
- One major axis portion 21B is provided.
- the outer diameter of the first short diameter portion 21A is larger than the dimension of the diameter of the electric wire 11 plus the thickness of the first short diameter portion 21A (two top and bottom), and the first long diameter portion
- the outer diameter of 21B is a diameter through which the three electric wires 11 can be inserted side by side, and the thickness of the first long diameter portion 21B (two left and right) is added to the dimension of the three electric wires 11 combined.
- the dimensions are slightly larger than the dimensions.
- the second deformed portion 24 is formed in the middle portion of the pipe 20. Specifically, the second deformed portion 24 is formed at a position different from the first deformed portion 21 in the extending direction of the pipe 20 (left and right direction in FIG. 1).
- the second deformed portion 24 has a flat (oval) cross-sectional shape, while the flat (oval) orientation is at a position (angle) that is substantially orthogonal to the first deformed portion 21 in the circumferential direction of the pipe. Is formed.
- the shape of the second deformed portion 24 is a generally flat shape (oval shape), and the portion with the shortest outer diameter dimension in the cross section of the pipe 20 is the second.
- the short diameter portion 24A is used, and the portion having the longest outer diameter dimension is the second long diameter portion 24B (with an outer diameter different from that of the second short diameter portion 24A).
- the outer diameter of the second short diameter portion 24A is larger than the dimension obtained by adding the thickness of the second short diameter portion 24A (two left and right) to the diameter of the electric wire 11, and the second long diameter portion
- the outer diameter of 24B is slightly larger than the dimension that allows the three electric wires 11 to be inserted side by side (the dimension obtained by adding the thicknesses of the second long diameter portions 24B to the dimension obtained by adding the diameters of the three electric wires 11).
- the upper and lower end portions (intermediate portion in the left-right direction) curved in an arc shape.
- the deformed portion 23 is a portion formed when plastically deforming between the shape of the first deformed portion 21 and the shape of the second deformed portion 21, and smoothly from the first deformed portion 21.
- the second deformed portion 24 range of B1
- it smoothly continues from the second deformed portion 24 to the first deformed portion 21 range of B2.
- the three electric wires 11 are arranged side by side in the first deformed portion 21, and the arrangement of the three electric wires 11 is gradually changed in the deformable portion 23, and the second deformed portion 21.
- reaching part 24 as shown in FIG.
- 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 first deformed portion 21 and the second deformed portion 24. ing.
- 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.
- 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, while 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) having a straight line over the entire length and having a constant outer diameter (circular shape on the outer periphery) is prepared, and a roller is operated by operating the roller position adjusting unit 38 of the forming apparatus 30.
- the distance between 31 and 32 (between opposing concave surfaces 31A and 32A) is increased to a length that allows the metal pipe to be inserted.
- the roller position adjusting unit 38 is operated to bring the concave surfaces 31 ⁇ / b> A and 32 ⁇ / b> A into contact with the metal pipe 20.
- 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, and the concave surfaces 31A and 31A are further formed.
- the dimension between 32A is gradually narrowed, the first deformed portion 21 is formed.
- the dimension between the concave surfaces 31A and 32A is gradually narrowed toward the opposite side with respect to the deformed portion 23, the metal pipe is plastically deformed to form the remaining deformed portion 23, and further the concave surface.
- the second deformed portion 24 is formed.
- the deformed portions 21 and 24 are formed in the same procedure for the position of the other deformed portion 23.
- another molding machine may be provided in the lower stage and plastically deformed step by step.
- Both deformed portions 23 and 23 are gripped by arms (not shown), and one arm is moved in the direction of the short diameter portion 24A of the second deformed portion 24.
- the second deformed portion 24 is moved to a position corresponding to the curvature (or inclination angle) and plastically deformed so that the second deformed portion 24 is curved, the pipe 20 is formed.
- the bending of the second deformed portion 24 (in the axial direction) is not limited to this method, and bending can be performed by other known methods.
- 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 first major axis 21B is the vertical direction of the first minor axis 21A of the first deformed part 21 (the thickness direction of the first minor axis).
- the bending direction of the second deformed portion 24 is directed in the left-right direction (horizontal direction), and is arranged (routed) under the floor of the vehicle W (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, and a first short diameter portion that is provided in the pipe 20 and has different outer diameters in the circumferential direction of the pipe 20.
- the first deformed portion 21 having 21A and the first long diameter portion 21B and the first deformed portion 21 of the pipe 20 are formed at different positions in the extending direction of the pipe 20, and the outer diameter in the circumferential direction of the pipe 20.
- the second deformed portion 24 having the second short diameter portion 24A and the second long diameter portion 24B different from each other, and the first short diameter portion 21A is located at a position different from the second short diameter portion 24A in the circumferential direction of the pipe 20.
- the first long diameter portion 21 ⁇ / b> B is formed at a position different from the second long diameter portion 24 ⁇ / b> B in the circumferential direction of the pipe 20.
- the diameter of the first deformed portion 21 on the side where the accommodation space is relatively narrow is defined as the radial direction (thickness direction) of the first short diameter portion 22A. If the side where the accommodation space is relatively wide is arranged so as to be in the radial direction (thickness direction) of the first long diameter portion 22B, the radial direction (thickness direction) of the first short diameter portion 22A is narrow. The space in the radial direction (thickness direction) of the first long diameter portion 22B can be used effectively by being accommodated in the space. Therefore, the shield conductor can be arranged using the space effectively.
- the shield conductor can be arranged by effectively using the space, but on the other hand, the first deformed portion 21 is compared in the radial direction of the first short diameter portion 22A. It can be bent easily, but the radial direction of the first long diameter portion 22B is not easy to bend, so the degree of freedom in the wiring direction is less than that of a pipe having a circular outer periphery. There's a problem.
- the first deformed portion 21 and the second deformed portion 24 are configured such that the short-diameter portions 21A and 24A are formed at different positions (angles) in the circumferential direction of the pipe 20, and Are formed in different positions (angles) in the circumferential direction of the pipe 20.
- the second deformed portion 24 can be bent in a direction that is difficult to bend. For this reason, the freedom degree of routing can be enlarged. Therefore, it is possible to increase the degree of freedom of routing for the shield conductor 10 while effectively using the space.
- the 1st variant part 21 is a flat shape, in addition to being able to accommodate the several electric wire 11 in a 1st variant part easily, arrange
- the first deformed portion 21 and the second deformed portion 24 are formed at positions (angles) orthogonal to each other in the circumferential direction of the pipe 20. For this reason, the major axis direction of the first major axis part 21B is the minor axis direction of the second minor axis part 24A.
- the major axis direction of the first major axis portion 21B is the minor axis direction of the second minor axis portion 24A
- the major axis direction of the first major axis portion 21B is relatively easily bent by the second minor axis portion 24A. It becomes possible. Therefore, the freedom degree of a wiring direction can be enlarged, using a space more effectively.
- the second deformed portion 24 is bent in the minor axis direction of the second minor axis portion 24 ⁇ / b> A in the extending direction of the pipe 20.
- the second deformed portion 24 is bent in the minor axis direction of the second minor axis portion 24 ⁇ / b> A with respect to the central axis of the pipe 20. Since the radial direction of each short diameter part 21A, 24A is easily bent as compared with the radial direction of each long diameter part 21B, 24B, the pipe 20 can be easily formed.
- each of the deformed portions 21 and 24 is formed by deforming a cylindrical metal pipe, it is formed using a mold or the like corresponding to the shape of each of the deformed portions 21 and 24. Compared with the case where it does, etc., shaping
- Embodiment 2 is one in which the outer surface of the shield conductor 10 is covered with a heat shrinkable tube 40 as shown in FIG.
- 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 outer surface of the pipe 20 can be protected by the heat shrinkable tube 40 if the heat shrinkable tube 40 is in close contact with the outer surface of the pipe 20.
- 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
- 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 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 short diameter side of the flat wire 60 is arranged in the first short diameter portion of the first deformed portion, and the long diameter side of the flat wire 60 is arranged in the first long diameter portion of the first deformed portion. Is done. Therefore, the pipe (not shown) has a first long 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, but is not limited to this, and may be another place in the vehicle W. 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 first deformed portions 21 and the second deformed portions 24, the length in the axial direction (extending direction), the position in the total length of the pipe, and the like are below the floor of the vehicle W in the present embodiment.
- the first deformed portion 21 and the second deformed portion 24 according to the route are set.
- 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.
- transformation part 23 it does not need to have the deformation
- each of the deformed portions 21 and 24 has a flat shape, but is not limited to a flat shape, and may be an oval shape that is not flat or a shape having a partially recessed portion. Any shape that has at least a short diameter portion and a long diameter portion may be used.
- the first deformed portion 21 and the second deformed portion 24 have different shapes only at positions (angles) around the axis, but the present invention is not limited to this, and the first deformed portion and the second deformed portion have different shapes. There may be.
- the second deformed portion 24 (the axis thereof) is curved in the radial direction of the short diameter portion 24A.
- the present invention is not limited to this, and the second deformed portion 24 (the axis thereof) is the short diameter portion. It may be bent in the radial direction of 24A.
- the second deformed portion 24 is bent in the radial direction of the short diameter portion 24A.
- the present invention is not limited to this, and the first deformed portion 21 depends on the location of the shield conductor. May be bent in the radial direction of the short-diameter portion 21A, and both the first deformed portion 21 and the second deformed portion 24 may be bent in the radial direction of the short-diameter portions 21A and 24A.
- 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 technique disclosed in this specification is a shield conductor, and is provided with a metal pipe, an electric wire inserted through the pipe, and a pipe having a different outer diameter in the circumferential direction of the pipe.
- the first deformed portion having one short diameter portion and the first long diameter portion and the first deformed portion of the pipe are formed at different positions in the extending direction of the pipe, and have an outer diameter in the circumferential direction.
- a second deformed portion having a different second short diameter portion and a second long diameter portion, and the first short diameter portion is formed at a position different from the second short diameter portion in the circumferential direction,
- the first long diameter portion is formed at a position different from the second long diameter portion in the circumferential direction.
- the shield conductor when the shield conductor is arranged, for each deformed portion, the side where the space for accommodating the shield conductor is relatively narrow is arranged so as to be in the radial direction (thickness direction) of each short diameter portion. If the side where the space is relatively wide is arranged so as to be in the radial direction (thickness direction) of each major axis part, the radial direction (thickness direction) of each minor axis part is accommodated in the narrow space, and each major axis part The space in the radial direction (thickness direction) can be used. Therefore, the shield conductor can be arranged using the space effectively.
- each deformed portion can be bent relatively easily in the radial direction of each short diameter portion.
- the degree of freedom of wiring is less than that of a pipe having a circular outer periphery.
- the first short diameter portion is formed at a position different from the second short diameter portion in the circumferential direction of the pipe, and the first long diameter portion is different from the second long diameter portion in the circumferential direction of the pipe. They are formed at different positions.
- Each of the deformed portions 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 major axis direction of the first major axis part and the minor axis direction of the second minor axis part are parallel.
- the radial direction of the long diameter portion of the first deformed portion is the radial direction of the short diameter portion of the second deformed portion
- the radial direction of the long diameter portion of the first deformed portion is the same as that of the second deformed portion. It becomes possible to bend by the short diameter part. Therefore, the freedom degree of a wiring direction can be enlarged, using a space more effectively.
- At least one of the first short diameter portion and the second short diameter portion is bent in the short diameter direction of each short diameter portion. Since the radial direction of the short diameter portion is easily bent as compared with the radial direction of the long diameter portion, the pipe can be easily formed.
- Each of the deformed portions is formed by deforming a cylindrical pipe. Compared to the case where the deformed portion is formed using a mold corresponding to the shape of the deformed portion, the deformed portion can be easily formed.
- the heat shrink tube is in close contact with the outer surface of the pipe.
- the outer surface of the pipe can be protected by the heat shrinkable tube.
- 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, and the second member is less likely to cause electrolytic corrosion on the shield member than the first member.
- a material is used, and an end portion of the pipe is connected to a shield member, and the shield member covers the outer periphery of the second member at the end portion of the pipe.
- the shield member against the second member of the pipe is less likely to cause electrolytic corrosion than the first member. Therefore, compared with the case where the shield member and the first member are connected, the occurrence of electrolytic corrosion can be suppressed.
- the shield member is a braided wire, the first member is aluminum or an aluminum alloy, and the second member is iron or an iron alloy.
- a braided wire made of copper plated with tin is used. Therefore, when the end of a pipe made of aluminum or aluminum alloy 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, the short diameter side of the flat wire is arranged in the short diameter portion of the deformed portion, and the long diameter side of the flat wire is arranged in the long diameter portion of the deformed portion. It is possible to route the shield conductor using the space effectively while having the characteristics of a flat electric wire with good characteristics.
- the shield conductor is arranged 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...第1異形部
21A...第1短径部
21B...第1長径部
23...変形部
24...第2異形部
24A...第2短径部
24B...第2長径部
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、前後方向については、図1の左方を前方、右斜め下方を後方とし、上下方向については図2を基準として説明する。
同様に変形部23に対して反対側に向けて凹状面31A,32A間の寸法を徐々に狭めていくと、金属パイプが塑性変形して残りの変形部23が形成されていき、更に凹状面31A,32A間の寸法を徐々に狭めていくと第2異形部24が形成される。
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。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。上記実施形態では、パイプ20は、アルミニウム合金等の一つの材質からなるものであったが、実施形態3では、パイプ50は、図10に示すように、内面側の第1部材51と外面側の第2部材52とを重ね合わせたクラッド材からなることとしたものである。
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、前記パイプに設けられて、前記パイプの周方向について外径の異なる第1短径部及び第1長径部を有する第1異形部と、前記パイプのうち前記第1異形部とは前記パイプの延びる延び方向について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第2短径部及び第2長径部を有する第2異形部と、を備え、前記第1短径部は、前記周方向について前記第2短径部と異なる位置に形成されており、前記第1長径部は、前記周方向について前記第2長径部と異なる位置に形成されている。
前記各異形部は、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 (10)
- 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、
前記パイプに設けられて、前記パイプの周方向について外径の異なる第1短径部及び第1長径部を有する第1異形部と、
前記パイプのうち前記第1異形部とは前記パイプの延びる延び方向について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第2短径部及び第2長径部を有する第2異形部と、を備え、
前記第1短径部は、前記周方向について前記第2短径部と異なる位置に形成されており、
前記第1長径部は、前記周方向について前記第2長径部と異なる位置に形成されているシールド導電体。 - 前記第1異形部及び前記第2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。
- 前記第1長径部の長径方向と、前記第2短径部の短径方向とが平行である請求の範囲第1項又は請求の範囲第2項に記載のシールド導電体。
- 前記第1短径部及び前記第2短径部の少なくとも一方は、前記各短径部の短径方向について曲がっ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。
- 前記各異形部は、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。
- 前記パイプの外面には、熱収縮チューブが密着していることを特徴とする請求項1ないし請求項5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6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7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第1短径部及び前記第2短径部の双方又は一方に配され、前記フラット電線の長径側が前記第1長径部及び前記第2長径部の双方又は一方に配される請求項1ないし請求項8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9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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RU2013128368/07A RU2013128368A (ru) | 2010-12-24 | 2011-12-21 | Экранированный проводник |
US13/991,595 US20130269972A1 (en) | 2010-12-24 | 2011-12-21 | Shield conductor |
KR1020137016044A KR101476079B1 (ko) | 2010-12-24 | 2011-12-21 | 쉴드 도전체 |
CN2011800622127A CN103270557A (zh) | 2010-12-24 | 2011-12-21 | 屏蔽导体 |
EP11850913.2A EP2657945B1 (en) | 2010-12-24 | 2011-12-21 | Shield conductor |
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JP2010-288004 | 2010-12-24 | ||
JP2010288004A JP5724371B2 (ja) | 2010-12-24 | 2010-12-24 | シールド導電体 |
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US (1) | US20130269972A1 (ja) |
EP (1) | EP2657945B1 (ja) |
JP (1) | JP5724371B2 (ja) |
CN (1) | CN103270557A (ja) |
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DE102016121168B3 (de) * | 2016-11-07 | 2018-03-15 | Lisa Dräxlmaier GmbH | Geschirmte elektrische leitungsanordnung |
CN106803447A (zh) * | 2016-12-09 | 2017-06-06 | 晋源电气集团股份有限公司 | 一种安全性高的电力电缆 |
JP6642409B2 (ja) * | 2016-12-19 | 2020-02-05 | 住友電装株式会社 | ワイヤハーネスにおける保護部材の保持構造 |
WO2023189982A1 (ja) * | 2022-03-30 | 2023-10-05 | 株式会社オートネットワーク技術研究所 | 絶縁電線、ワイヤーハーネス、および絶縁電線の製造方法 |
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Also Published As
Publication number | Publication date |
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EP2657945A4 (en) | 2014-05-28 |
JP5724371B2 (ja) | 2015-05-27 |
KR20130095810A (ko) | 2013-08-28 |
JP2012138180A (ja) | 2012-07-19 |
US20130269972A1 (en) | 2013-10-17 |
EP2657945A1 (en) | 2013-10-30 |
EP2657945B1 (en) | 2016-04-06 |
CN103270557A (zh) | 2013-08-28 |
RU2013128368A (ru) | 2015-01-27 |
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