WO2015041243A1 - Bus ring and electrical-power-distribution member provided therewith - Google Patents

Bus ring and electrical-power-distribution member provided therewith Download PDF

Info

Publication number
WO2015041243A1
WO2015041243A1 PCT/JP2014/074544 JP2014074544W WO2015041243A1 WO 2015041243 A1 WO2015041243 A1 WO 2015041243A1 JP 2014074544 W JP2014074544 W JP 2014074544W WO 2015041243 A1 WO2015041243 A1 WO 2015041243A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus ring
terminal
wire
main body
base
Prior art date
Application number
PCT/JP2014/074544
Other languages
French (fr)
Japanese (ja)
Inventor
梅村晴之
片平達司
Original Assignee
株式会社パイオラックス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社パイオラックス filed Critical 株式会社パイオラックス
Priority to JP2015537940A priority Critical patent/JP6178422B2/en
Publication of WO2015041243A1 publication Critical patent/WO2015041243A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles

Definitions

  • the present invention relates to a power distribution bus ring and a power distribution member including the same.
  • the power distribution member is provided with three bus rings as paths through which a three-phase current flows.
  • Patent Document 1 discloses an annular connection conductor holder in which a plurality of storage grooves are provided in the radial direction and a plurality of connection conductors respectively stored in the storage grooves.
  • the connection conductor is formed of a conducting wire having a round cross section, and has an annular storage portion that is stored in the storage groove, and a coil connection terminal portion that protrudes from the storage portion to the outer diameter side.
  • the connecting conductor is formed by bending a conducting wire, and a small-diameter annular portion is formed at the tip.
  • the annular portion of the coil connection terminal portion is formed by bending a conducting wire.
  • the annular portion has a round cross section when the annular portion and the coil lead wire are joined, contact with the lead wire is made. It is difficult to secure an area and it is not easy to connect by fusing.
  • the present invention has been made in view of such problems, and an object of the present invention is to provide a bus ring that can be easily connected to a conductor member while suppressing the manufacturing cost of the bus ring.
  • an aspect of the present invention is a power distribution bus ring formed of a conductive wire, and is formed by bending an annular main body portion and projecting from the main body portion.
  • a plurality of terminals The terminal has a connecting portion that is formed on the distal end side and that defines an insertion hole for inserting a conducting wire member drawn from the coil, and a base portion that is formed on the main body portion side and supports the connecting portion.
  • the connecting portion has a contact surface that can be brought into surface contact with the outer peripheral surface of the conductor member, and the contact surface is formed by flattening the wire.
  • the manufacturing cost can be suppressed by forming the bus ring with the wire.
  • the connecting portion has a contact surface that can be brought into surface contact with the conducting wire member of the coil, the connecting portion and the conducting wire member can be easily connected by being brought into surface contact.
  • a power distribution member including a power distribution bus ring formed of a conductive wire and an annular case member that holds the bus ring.
  • the bus ring has an annular main body portion and a plurality of terminals formed by bending so as to protrude from the main body portion.
  • the case member is formed in a housing part that houses the bus ring, a wall part that defines the housing part, a plurality of cutout parts that respectively project a plurality of terminals, and an inner side of the housing part from an end of the cutout part in the wall part And a projecting portion projecting into the surface.
  • the bus ring is formed by bending a flattened portion of the wire from the terminal to a part of the main body.
  • the inner peripheral surface of the connecting portion is formed flat by flattening. The protrusion comes into contact with the main body that is flattened.
  • FIG. 2A is a top view of the power distribution member
  • FIG. 2B is a side view of the power distribution member.
  • It is a top view of a 1st bus ring.
  • It is a figure for demonstrating the 1st terminal of a 1st bus ring.
  • It is a figure for demonstrating shaping
  • It is a figure for demonstrating the connection of the connection part and conducting wire member by fusing.
  • It is a figure for demonstrating the bus ring of a 2nd modification.
  • FIG. 1 is a perspective view of a power distribution member 10 according to the embodiment.
  • the power distribution member 10 is provided, for example, in a hybrid vehicle, and supplies the regenerated power to the motor.
  • the power distribution member 10 receives three-phase AC currents from an external drive circuit, and supplies the AC currents of the respective phases to the motor coil.
  • the motor and the power distribution member 10 are formed thin due to restrictions on the space in the engine room, the current for driving the vehicle is very large, and it is necessary to appropriately insulate the power supply path of each phase.
  • the power supply path of each phase is insulated by applying an insulating material to the bus ring.
  • the terminals projecting outward in the radial direction are arranged at equal intervals in the circumferential direction.
  • the motor coil has a plurality of coils provided at equal intervals in the circumferential direction and projecting radially inward. In-out terminals of the power distribution member are connected to the coil.
  • the power distribution member 10 includes a first bus ring 12, a second bus ring 14, and a third bus ring 16, and is formed by assembling three bus rings.
  • the power distribution member 10 further includes a case 18 having an accommodation groove 18a that accommodates three bus rings, and a plurality of fasteners 20 that close the openings of the accommodation groove 18a from the outside of the case 18 at a plurality of locations.
  • the configuration of the bus ring will be described in detail with reference to another drawing.
  • FIG. 2A is a top view of the power distribution member 10
  • FIG. 2B is a side view of the power distribution member 10.
  • FIG. 3 is a top view of the first bus ring 12.
  • the case 18 is formed in an annular shape by a resin member.
  • the case 18 is formed around the entire circumference and accommodates each bus ring, a first cutout portion 18b, a second cutout portion 18c, and a third cutout portion 18d formed on the outer peripheral surface of the case 18 in the radial direction.
  • the case 18 is formed with openings for exposing the first connection portion 22, the second connection portion 24, and the third connection portion 26 to the outside in the radial direction.
  • the first cutout portion 18b, the second cutout portion 18c, and the third cutout portion 18d are formed so as to have different depths of cutouts in the axial direction.
  • the first notch 18b, the second notch 18c, and the third notch 18d are formed in order of increasing depth. Thereby, the position of the axial direction of each bus ring can be set.
  • the axial direction is a direction along the central axis of the case 18.
  • the first bus ring 12 includes an annular first body portion 34, a plurality of first terminals 28, and a first connection portion 22.
  • the plurality of first terminals 28 are formed to be bent so as to protrude from the first main body 34 and are arranged at equal intervals in the circumferential direction. Since the first main body 34 is coated with an insulating material over the entire circumference and the first terminal 28 is electrically connected, at least the tip portion is exposed.
  • the second bus ring 14 has a second main body portion 36, a second terminal 30 and a second connection portion 24, and the third bus ring 16 has a third main body portion 38, a third terminal 32 and a third connection portion 26.
  • the first bus ring 12, the second bus ring 14, and the third bus ring 16 are formed in the same size and shape, detailed description of the second bus ring 14 and the third bus ring 16 is omitted.
  • each bus ring has the same shape and can be manufactured in the same process, the manufacturing cost can be reduced as compared with the case where bus rings having different shapes are formed.
  • Each bus ring is formed of a conductive wire having a circular cross section. A wire having a circular cross section can be obtained at low cost, and the manufacturing cost can be reduced.
  • FIG. 4 is a diagram for explaining the first terminal 28 of the first bus ring 12.
  • 4A is a perspective view focusing on the first terminal 28 in the power distribution member 10
  • FIG. 4B is a top view focusing on the first terminal 28 in the power distribution member 10.
  • the first terminal 28 is formed on the distal end side, and is formed on the first body portion 34 side with a connecting portion 42 that defines an insertion hole 46 for inserting the conducting wire member 50 drawn from the coil.
  • a first base portion 40a and a second base portion 40b to be supported (referred to as “base portion 40” when these are not distinguished).
  • the insulating material is applied to the base portion of the base portion 40, and the distal end side of the first terminal 28 is exposed from the boundary 44.
  • the connecting portion 42 is formed in an annular shape and is electrically connected to the coil conductor member 50.
  • the first base portion 40 a extends from one end of the connecting portion 42 and is connected to the first main body portion 34, and the second base portion 40 b extends from the other end of the connecting portion 42 and is connected to the first main body portion 34.
  • the first terminal 28 is formed to be bent and is formed in a protruding shape so as to protrude from the first main body 34.
  • the conducting wire member 50 is a lead wire of the coil and is formed of a wire having a rectangular cross section.
  • the conducting wire member 50 is inserted through the connecting portion 42 and joined by fusing.
  • the molding of the first bus ring 12 will be described with reference to FIG.
  • FIG. 5 is a view for explaining the molding of the first bus ring 12.
  • FIG. 5A is a partial top view of the first bus ring 12
  • FIG. 5B is a cross-sectional view showing the wire 52 in the middle of forming the first bus ring 12.
  • the wire 52 shown in FIG.5 (b) is a cross section which passes along a central axis.
  • the wire 52 having a circular cross section is partially flattened by pressing.
  • the wire 52 has a flat part 54 and a circular part 56.
  • the flat part 54 has a flat plate shape and has a flat surface on the front and back.
  • the axial width of the flat surface of the flat portion 54 is more than half the wire diameter of the circular portion 56.
  • the axial direction is the central axial direction of the first main body 34 or the central axial direction of the insertion hole 46.
  • the first wire 28 is formed by bending the pressed wire 52.
  • the wire 52 is pressed with a predetermined pressing instrument in a state where it is placed on a flat base.
  • the surface that does not contact the press device, that is, the surface that contacts the pedestal is flatter than the surface pressed by the press device.
  • the flat portion 54 is lower in rigidity in a direction perpendicular to the plane than the circular portion 56.
  • the points A, B, and C of the wire 52 shown in FIG. 5B are positioned at the points A, B, and C of the first terminal 28 shown in FIG.
  • the flat surface and the back surface of the flat portion 54 become the outer peripheral surface and the inner peripheral surface of the connecting portion 42.
  • the surface pressed by the pressing device becomes the outer peripheral surface of the connecting portion 42.
  • the inner peripheral surface of the connection part 42 can be made further flat.
  • the flat portion 54 is easier to bend than the circular portion 56, and the first terminal 28 can be easily bent.
  • the point C is located in the middle of the base 40. That is, the base portion 40 has a circular portion 56 on the first main body portion 34 side from the flat portion 54. A part of the base 40 has a circular cross section, and the rigidity of the base 40 can be secured.
  • FIG. 6 is a view for explaining the connection between the connecting portion 42 and the conductor member 50 by fusing.
  • the conducting wire member 50 is inserted into the insertion hole 46 and joined to the inner peripheral surface of the connecting portion 42 by fusing.
  • the connecting portion 42 contacts the conductor member 50 inserted through the insertion hole 46 and has a contact surface 58 formed by flattening the wire 52, that is, an inner peripheral surface of the connecting portion 42.
  • the pair of electrodes 100 are brought into contact with the first outer peripheral surface 42a of the connecting portion 42 and the second outer peripheral surface 42b parallel to the first outer peripheral surface 42a, and the electrode 100 is energized.
  • the inner peripheral surface of the connecting portion 42 and the outer peripheral surface of the conducting wire member 50 are welded by heat generated by energization. Since the inner peripheral surface of the connecting portion 42 and the outer peripheral surface of the conducting wire member 50 have flat surfaces, they can be brought into surface contact with each other, and the connecting portion 42 is thinned so that fusing can be easily performed. Moreover, compared with the case where the connection part 42 is circular in cross section, a contact area can be enlarged and joining can be strengthened.
  • the first base portion 40a and the second base portion 40b each have a flat portion 54 flattened on the connecting portion 42 side.
  • the first base portion 40a has a flat first opposing surface 48a
  • the second base portion 40b has a flat second opposing surface 48b.
  • the first facing surface 48a and the second facing surface 48b are formed to face each other and come into contact with each other.
  • the shape of the first bus ring 12 can be stabilized and manufacturing errors can be reduced.
  • the first opposed surface 48a and the second opposed surface 48b that are in contact with each other are slightly separated from each other by the spring back after molding, and are brought into close proximity.
  • the base 40 can be conducted by bringing the first facing surface 48a and the second facing surface 48b into contact with each other.
  • FIG. 7 is a diagram for explaining the bus ring 112 of the first modification.
  • FIG. 7A is a perspective view of the bus ring 112
  • FIG. 7B is a top view of the bus ring 112.
  • the terminal 128 of the bus ring 112 and its peripheral portion are shown, and other terminals 128 of the bus ring 112 not shown have the same shape.
  • the bus ring 112 of the first modified example is different from the first bus ring 12 shown in FIG. 5A in that the entire region of the terminal 128 is formed of a flattened wire.
  • the bus ring 112 according to the first modification is flattened from the base of the terminal 128 to a part of the main body 134.
  • the terminal 128 includes a connecting portion 142 that defines an insertion hole 146 for inserting a conductive wire member drawn from the coil, and a first base portion 148 a and a second base portion that are connected to the main body portion 134 and support the connecting portion 142.
  • 148b (referred to as “base 148” when these are not distinguished).
  • the wire for forming the bus ring 112 originally has a circular cross section, and as shown in FIG. 7 (a), the portion away from the terminal 128 of the main body 134 has a circular cross section. is there.
  • the wire 128 is partially pressed and flattened, and the flattened wire portion is bent to form the terminal 128.
  • the terminal 128 is formed by bending a flattened portion of the wire material over at least the entire region of the terminal 128. Only the terminal 128 may be formed over the entire region of the terminal 128, and the terminal 128 and a part of the main body 134 may be included.
  • the inner peripheral surface of the connecting portion 142 of the terminal 128 is formed flat by flattening. That is, it is formed in a planar shape along the axial direction of the insertion hole 146.
  • the coil conductor member 50 protrudes according to the number of terminals 128 and passes through the insertion holes 146. At that time, there is a possibility that any one of the conductor members 50 hits the base portion 148 or the connecting portion 142 to deform the terminal 128 in the axial direction.
  • deformation of the terminal 128 in the axial direction can be suppressed when the conductor members 50 are inserted into the insertion holes 146 of the plurality of terminals 128, respectively.
  • FIG. 7B is a boundary between the terminal 128 and the main body 134, and a part of the main body 134 connected to the base 148 of the terminal 128 is also formed of a flattened wire.
  • a circumscribed circle 156 of the main body part 134 and a contact point of the main body part 134 become a flat end 154 of the flat part.
  • FIG. 7 (b) shows a state in which the flat portion 134a of the main body 134 is formed in a straight line, but is not limited to this aspect, and may be curved along the circumscribed circle 156.
  • the axial length L1 is formed to be larger than the radial length L2.
  • the area of the internal peripheral surface of the connection part 142 can be enlarged, and the area which can contact the conducting wire member 50 can be increased.
  • the flatness L1 / L2 is obtained by dividing the axial length L1 shown in FIG. 7A by the radial length L2.
  • FIG. 8 is a diagram for explaining the flatness of the flattened wire.
  • shaft shown in FIG. 8 shows the cross-sectional secondary moment Iz, and a horizontal axis shows flatness L1 / L2.
  • the flatness of the wire rod for forming the terminal 128 is preferably such that the moment of inertia of the cross section is equal to or greater than a predetermined value Iza.
  • the predetermined value Iza of the cross-sectional secondary moment is the cross-sectional secondary moment of the wire having a circular cross section before flattening, and is 1.66.
  • the terminal 128 is formed by the portion of the wire having a flatness ratio of 1.5 or more. Accordingly, the terminal 128 can be thickened in the axial direction to increase the axial rigidity of the terminal 128, and deformation of the terminal 128 when the coil conductor member 50 is inserted into the terminal 128 can be suppressed. More preferably, the terminal 128 is formed by the portion of the wire having an aspect ratio of 1.66 or more. Further, the flatness ratio may be 3 or less, whereby an excessive decrease in the radial rigidity of the terminal 128 can be suppressed.
  • FIG. 9 is a diagram for explaining the bus ring 212 of the second modified example.
  • the bus ring 212 includes an annular main body 234 and a terminal 228 formed so as to protrude from the main body 234.
  • the terminal 228 includes a connecting portion 242, and a first base portion 248a and a second base portion 248b (referred to as “base portion 248” if they are not distinguished from each other).
  • the bus ring 212 of the second modified example is formed so that the length in the axial direction is different between the base portion 248 and the connecting portion 242 as compared with the bus ring 112 of the first modified example shown in FIG.
  • An axial length L3 of the connecting portion 242 is formed to be longer than an axial length L1 of the base portion 248.
  • FIG. 10 is a diagram for explaining a power distribution member of a third modification.
  • the power distribution member of the third modified example includes a power distribution bus ring 312 formed from a conductive wire, and an annular case 118 that holds the bus ring 312.
  • the bus ring 312 includes an annular main body 334 and a terminal 328 formed by bending so as to protrude from the main body 334.
  • the terminal 328 includes a connecting portion 342 that defines an insertion hole 346 for inserting the conducting wire member 50, and a first base portion 348a and a second base portion 348b that are connected to the main body portion 334 and support the connecting portion 342. Case "base 348").
  • the bus ring 312 is formed by bending a flattened portion of the wire from the terminal 328 to a part of the main body 334. On the terminal 328 side from the flat end 354, a part of the main body portion 334 is formed of a flattened wire.
  • the case member 118 is formed in an accommodating portion 164 that accommodates the bus ring 312, an outer wall portion 160 that defines the accommodating portion 164, a plurality of notches 166 that respectively project a plurality of terminals 328, and a notch portion in the outer wall portion 160. And a protrusion 170 protruding radially from the edge 168 of the 166 to the inside of the accommodating portion 164.
  • the projecting portion 170 abuts on the main body portion 334 that is flattened.
  • a part of the main body portion 334 is thinner than the interval between the outer wall portion 160 and the inner wall portion 162 of the accommodating portion 164, that is, the groove width, due to flattening. Therefore, the radial position of the main body 334 is restricted by the protrusion 170, and the main body 334 is prevented from being deformed or moved by the accommodating portion 164 and the terminal 328 is prevented from moving. Thereby, rattling of the terminal 328 can be suppressed, and the operation of inserting each of the plurality of terminals 328 into the plurality of conductor members 50 can be facilitated.
  • the protrusion 170 protrudes inward in the radial direction.
  • the protrusion 170 may be formed so as to protrude by the amount that the main body 334 is thinned in the radial direction by flattening the wire.
  • the terminal 328 protrudes radially outward from the main body 334 in the third modification, when the terminal 328 protrudes radially inward, the notch 166 from which the terminal 328 protrudes is formed on the inner wall 162.
  • the protrusion 170 is formed and protrudes radially outward from the edge 168 of the notch 166 of the inner wall 162.
  • FIG. 11 is a diagram for explaining the bus ring 412 of the fourth modified example.
  • FIG. 11A is a perspective view of the bus ring 412
  • FIG. 11B is a top view of the bus ring 412
  • FIG. 11C is an enlarged partial cross-sectional view of the bus ring 412.
  • the terminal 428 of the bus ring 412 and its peripheral part are shown, and other terminals 428 of the bus ring 412 not shown have the same shape.
  • the bus ring 412 of the fourth modified example is different from the first bus ring 12 shown in FIG. 5A in that the entire region of the terminal 428 is formed of a flattened wire.
  • the bus ring 412 of the fourth modification is flattened from the base of the terminal 428 to a part of the main body 434. Further, the bus ring 412 of the fourth modification is formed using a conductive wire to which an insulating coating 456 has been applied in advance, and the main body 434 of the bus ring 412 has an insulating coating 456 applied thereto.
  • the bus ring 412 includes an annular main body 434 and a plurality of terminals 428 formed by bending a flattened wire portion so as to protrude from the main body 434.
  • the terminal 428 includes a connecting portion 442 that defines an insertion hole 446 for inserting a conductive wire member drawn from the coil, and a first base portion 448 a and a second base portion that are connected to the main body portion 434 and support the connecting portion 442. 448b (referred to as “base 448” if these are not distinguished).
  • the wire rod for forming the bus ring 412 originally has a circular cross section, and a portion of the main body 434 away from the terminal 428 has a shape having a circular cross section.
  • the terminal 428 is formed by partially pressing the wire to flatten it, and bending the flattened wire.
  • the terminal 428 is formed by bending a flattened portion of the wire material over the entire area of the terminal 428.
  • the inner peripheral surface of the connecting portion 442 of the terminal 428 is formed flat by flattening. That is, it is formed in a planar shape along the axial direction of the insertion hole 446. Thereby, when joining the conducting wire member 50 and the connection part 442 of a coil by fusing, surface contact can be made easy, a contact area can be enlarged, and joining can be strengthened. Further, by forming the entire terminal 428 with a flattened wire, the rigidity of the terminal 428 in the axial direction can be increased.
  • the coil conductor member 50 protrudes in accordance with the number of terminals 428 and passes through the respective insertion holes 446. At that time, there is a possibility that any one of the conducting wire members 50 hits the base portion 448 or the connecting portion 442 to deform the terminal 428 in the axial direction.
  • By increasing the rigidity of the terminal 428 in the axial direction it is possible to suppress deformation of the terminal 428 in the axial direction when the conductive wire members 50 are respectively inserted into the insertion holes 446 of the plurality of terminals 428.
  • 11B is a boundary between the terminal 428 and the main body 434, and a part of the main body 434 connected to the base 448 of the terminal 428 is also formed by a flattened wire. It becomes the flat end 454 of the flat portion.
  • the bus ring 412 is laminated as it is by the insulating coating 456, and insulation is ensured even if the main body portions 434 are in contact with each other.
  • the insulating film 456 peels off and the conducting wire part 457 is exposed.
  • the insulating coating 456 is not peeled off from the circular cross-sectional portion 434 b of the main body 434 that is not flattened in the bus ring 412. Between the circular cross-section portion 434b and the flat portion 434a, an inclined portion 434c reaching the flat shape is formed. The inclined portion 434c is also exposed when the insulating film 456 is peeled off.
  • the axial length L1 is formed to be larger than the radial length L2.
  • the area of the internal peripheral surface of the connection part 442 can be enlarged, and the area which can contact the conducting wire member 50 can be increased.
  • the axial direction length L1 shown to Fig.11 (a) by the radial direction length L2 is set to flatness L1 / L2.
  • FIG. 12 is a diagram for explaining a process in the middle of forming the bus ring 412 of the fourth modified example.
  • FIG. 12A shows a state before the bus ring 412 is formed, and shows a cross section along the central axis of the wire 470.
  • FIG. 12B shows a state where the wire rod 470 is pressed.
  • FIG.12 (c) shows the state before a bending process in the state in which the insulating film of the wire 470 was peeled off.
  • the wire 470 is obtained by applying an insulating coating 456 to the conducting wire portion 457 in advance.
  • the manufacturing cost can be reduced by using the conductive wire portion 457 to which the insulating coating 456 has been applied in advance.
  • the wire rod 470 is partially pressed to flatten the wire rod 470, and a flat portion 476 is formed.
  • the insulating coating 456 can suppress damage to the conductive wire portion 457.
  • the portion that is not pressed remains the initial circular cross section, and the wire 470 is divided into a flat portion 476 and a circular cross sectional portion 478.
  • a notch 474 is formed in the insulating coating 456 simultaneously with the pressing by a predetermined pressing device.
  • the notch 474 is formed to peel off the insulating film 456 of the terminal 428 to be exposed, and is formed in the insulating film 456 of the wire 470 so as not to damage the conductor portion 457.
  • the notch 474 is formed in the boundary portion between the flat portion 476 and the circular cross section 478 or in the vicinity of the flat portion 476 in the circular cross section 478. Cuts 474 are formed on both sides of the flat portion 476.
  • the notch 474 may be formed in a part in the circumferential direction of the circular cross section of the insulating coating 456, and the insulating coating 456 may be partially connected in the central axis direction of the wire 470.
  • an inclined portion 480 reaching the flat shape is formed.
  • the inclined portion 480 is also exposed when the insulating coating 456 is peeled off.
  • the notch 474 may be formed by laser cutting before press working.
  • the insulating coating 456 of the flat portion 476 between the notches 474 is peeled off.
  • the insulating coating 456 of the flat portion 476 is pressed, the insulating coating 456 is partially lifted from the conductive wire portion 457 and easily peeled off, and can be easily peeled off from the cut 474.
  • the step of peeling the insulating coating 456 may be performed using a press device during the press working step, or may be performed by a predetermined jig or manually after the press working step.
  • the terminal 428 and the annular main body 434 are bent using the wire 470 that is partially flattened and the insulating coating 456 is peeled off to form the bus ring 412.
  • the mode in which the first terminal 28 of the first bus ring 12 protrudes outward in the radial direction from the first main body 34 is shown, but the present invention is not limited to this mode.
  • the first terminal 28 is formed so as to protrude radially inward from the first main body 34 of the bus ring.
  • the terminal of a coil can be arrange
  • a mode in which the flat contact surface 58 is formed by flattening the wire 52 having a circular cross section is not limited to this mode.
  • the contact surface 58 of the connection part 42 is formed according to the shape of the outer peripheral surface of the coil conductor member, and is formed so as to be able to come into surface contact with the outer periphery surface of the conductor member.
  • the contact surface 58 is formed in a cylindrical shape according to the conductor member.
  • the present invention relates to a power distribution bus ring and a power distribution member including the same.

Abstract

A first bus ring (12) for distributing electrical power. Said first bus ring (12), which is made from a conductive wire rod, comprises a ring-shaped first body section (34) and a plurality of first terminals (28) that are formed by being bent so as to protrude from the first body section (34). Each first terminal (28) comprises the following: a connecting section (42) that is formed on the tip side of said first terminal (28) and defines an insertion hole (46) through which an electrical-lead member (50) coming from a coil is inserted; and a base section (40) that is formed on the first-body-section (34) side of that first terminal (28) and supports the aforementioned connecting section (42). Each connecting section (42) has a contact surface that can make surface contact with the outside surface of the corresponding electrical-lead member (50) and is formed by flattening a wire rod.

Description

バスリングおよびそれを備える配電用部材Bus ring and power distribution member comprising the same
　本発明は、配電用のバスリングおよびそれを備える配電用部材に関する。 The present invention relates to a power distribution bus ring and a power distribution member including the same.
　近年、駆動源としてモータを搭載した車両が開発されている。このモータには配電用部材を介して非常に大きな３相の電流が流される。配電用部材には３相の電流が流れる経路として３つのバスリングがそれぞれ設けられる。 In recent years, vehicles equipped with motors as drive sources have been developed. A very large three-phase current flows through the motor through the power distribution member. The power distribution member is provided with three bus rings as paths through which a three-phase current flows.
　特許文献１には、収納溝が径方向に複数設けられた環状の接続導体ホルダと、収納溝にそれぞれ収納される複数の接続導体とが開示される。この接続導体は、断面丸型の導線により形成され、収納溝に収納される環状の収納部と、収納部から外径側に突出して設けられたコイル結線用端子部と、を有する。接続導体は、導線を曲げて形成され、先端部に小径の環状部が形成される。 Patent Document 1 discloses an annular connection conductor holder in which a plurality of storage grooves are provided in the radial direction and a plurality of connection conductors respectively stored in the storage grooves. The connection conductor is formed of a conducting wire having a round cross section, and has an annular storage portion that is stored in the storage groove, and a coil connection terminal portion that protrudes from the storage portion to the outer diameter side. The connecting conductor is formed by bending a conducting wire, and a small-diameter annular portion is formed at the tip.
特開２００３－３２４８８７号公報Japanese Patent Laid-Open No. 2003-324887
　特許文献１に記載の技術では、コイル結線用端子部の環状部を導線を折り曲げて形成するが、環状部とコイルの引き出し線の接合において、環状部の断面が丸型なので引き出し線との接触面積を確保しづらく、ヒュージングでの連結が容易でない。 In the technique described in Patent Document 1, the annular portion of the coil connection terminal portion is formed by bending a conducting wire. However, since the annular portion has a round cross section when the annular portion and the coil lead wire are joined, contact with the lead wire is made. It is difficult to secure an area and it is not easy to connect by fusing.
　本発明はこのような課題に鑑みてなされたものであり、その目的は、バスリングの製造コストを抑えつつ、導線部材と容易に連結できるバスリングを提供することにある。 The present invention has been made in view of such problems, and an object of the present invention is to provide a bus ring that can be easily connected to a conductor member while suppressing the manufacturing cost of the bus ring.
　上記課題を解決するために、本発明のある態様は、導電性の線材から形成される配電用のバスリングであって、環状の本体部と、本体部から突出するように屈曲して形成される複数の端子と、を備える。端子は、先端側に形成され、コイルから引き出された導線部材を挿通するための挿通孔を画成する連結部と、本体部側に形成され、連結部を支持する基部と、を有する。連結部は、導線部材の外周面に面接触可能な接触面を有し、その接触面は、線材を扁平化されて形成される。 In order to solve the above problems, an aspect of the present invention is a power distribution bus ring formed of a conductive wire, and is formed by bending an annular main body portion and projecting from the main body portion. A plurality of terminals. The terminal has a connecting portion that is formed on the distal end side and that defines an insertion hole for inserting a conducting wire member drawn from the coil, and a base portion that is formed on the main body portion side and supports the connecting portion. The connecting portion has a contact surface that can be brought into surface contact with the outer peripheral surface of the conductor member, and the contact surface is formed by flattening the wire.
　この態様によると、線材によりバスリングを形成することで製造コストを抑えることができる。また、連結部がコイルの導線部材に面接触可能な接触面を有するため、連結部と導線部材とを面接触させて容易に連結することができる。 According to this aspect, the manufacturing cost can be suppressed by forming the bus ring with the wire. In addition, since the connecting portion has a contact surface that can be brought into surface contact with the conducting wire member of the coil, the connecting portion and the conducting wire member can be easily connected by being brought into surface contact.
　また、本発明の別の態様は、導電性の線材から形成される配電用のバスリングと、バスリングを保持する環状のケース部材と、を備える配電用部材である。バスリングは、環状の本体部と、本体部から突出するように屈曲して形成される複数の端子と、を有する。ケース部材は、バスリングを収容する収容部と、収容部を画成する壁部に形成され、複数の端子をそれぞれ出す複数の切欠部と、壁部における切欠部の端部から収容部の内側に突出する突部と、を有する。バスリングは、端子から本体部の一部に亘って、扁平化された線材の部分を屈曲することで形成される。連結部の内周面は、扁平化により平らに形成される。突部は、扁平化がおよぶ本体部に当接する。 Another aspect of the present invention is a power distribution member including a power distribution bus ring formed of a conductive wire and an annular case member that holds the bus ring. The bus ring has an annular main body portion and a plurality of terminals formed by bending so as to protrude from the main body portion. The case member is formed in a housing part that houses the bus ring, a wall part that defines the housing part, a plurality of cutout parts that respectively project a plurality of terminals, and an inner side of the housing part from an end of the cutout part in the wall part And a projecting portion projecting into the surface. The bus ring is formed by bending a flattened portion of the wire from the terminal to a part of the main body. The inner peripheral surface of the connecting portion is formed flat by flattening. The protrusion comes into contact with the main body that is flattened.
　本発明によれば、バスリングの製造コストを抑えつつ、導線部材と容易に連結できる。 According to the present invention, it is possible to easily connect with the conductor member while suppressing the manufacturing cost of the bus ring.
実施形態に係る配電用部材の斜視図である。It is a perspective view of the member for electric power distribution concerning an embodiment. 図２（ａ）は、配電用部材の上面図であり、図２（ｂ）は、配電用部材の側面図である。FIG. 2A is a top view of the power distribution member, and FIG. 2B is a side view of the power distribution member. 第１バスリングの上面図である。It is a top view of a 1st bus ring. 第１バスリングの第１端子について説明するための図である。It is a figure for demonstrating the 1st terminal of a 1st bus ring. 第１バスリングの成形について説明するための図である。It is a figure for demonstrating shaping | molding of a 1st bus ring. ヒュージングによる連結部と導線部材の連結について説明するための図である。It is a figure for demonstrating the connection of the connection part and conducting wire member by fusing. 第１変形例のバスリングについて説明するための図である。It is a figure for demonstrating the bus ring of a 1st modification. 扁平化された線材の扁平率について説明するための図である。It is a figure for demonstrating the flat rate of the flattened wire. 第２変形例のバスリングについて説明するための図である。It is a figure for demonstrating the bus ring of a 2nd modification. 第３変形例の配電用部材について説明するための図である。It is a figure for demonstrating the member for power distribution of a 3rd modification. 第４変形例のバスリングについて説明するための図である。It is a figure for demonstrating the bus ring of a 4th modification. 第４変形例のバスリングの成形途中の工程について説明するための図である。It is a figure for demonstrating the process in the middle of shaping | molding of the bus ring of a 4th modification.
　図１は、実施形態に係る配電用部材１０の斜視図である。配電用部材１０は、たとえばハイブリッドの車両に設けられ、回生した電力をモータに給電する。配電用部材１０は外部の駆動回路から３相の交流電流をそれぞれ受け取り、各相の交流電流をモータのコイルに供給する。このモータおよび配電用部材１０は、エンジンルームのスペースの制約上、薄型に形成されるが、車両を駆動するための電流は非常に大きく、各相の給電経路を適切に絶縁する必要がある。実施形態の配電用部材１０ではバスリングに絶縁材料を塗布することで各相の給電経路を絶縁している。径方向外向きに張り出している各端子は、周方向に均等な間隔で配置される。たとえばモータのコイルは周方向に等間隔で複数設けられて径方向内向きに突出する部分を有する。そのコイルに配電用部材のイン・アウトの各端子が接続される。 FIG. 1 is a perspective view of a power distribution member 10 according to the embodiment. The power distribution member 10 is provided, for example, in a hybrid vehicle, and supplies the regenerated power to the motor. The power distribution member 10 receives three-phase AC currents from an external drive circuit, and supplies the AC currents of the respective phases to the motor coil. Although the motor and the power distribution member 10 are formed thin due to restrictions on the space in the engine room, the current for driving the vehicle is very large, and it is necessary to appropriately insulate the power supply path of each phase. In the power distribution member 10 of the embodiment, the power supply path of each phase is insulated by applying an insulating material to the bus ring. The terminals projecting outward in the radial direction are arranged at equal intervals in the circumferential direction. For example, the motor coil has a plurality of coils provided at equal intervals in the circumferential direction and projecting radially inward. In-out terminals of the power distribution member are connected to the coil.
　配電用部材１０は、第１バスリング１２、第２バスリング１４および第３バスリング１６を備え、３つのバスリングを組み立てて形成される。また、配電用部材１０は、３つのバスリングを収容する収容溝１８ａを有するケース１８と、ケース１８の外側から収容溝１８ａの開口を複数箇所で塞ぐ複数の留め具２０と、をさらに備える。このバスリングの構成について別の図面を参照しつつ、詳細に説明する。 The power distribution member 10 includes a first bus ring 12, a second bus ring 14, and a third bus ring 16, and is formed by assembling three bus rings. In addition, the power distribution member 10 further includes a case 18 having an accommodation groove 18a that accommodates three bus rings, and a plurality of fasteners 20 that close the openings of the accommodation groove 18a from the outside of the case 18 at a plurality of locations. The configuration of the bus ring will be described in detail with reference to another drawing.
　図２（ａ）は、配電用部材１０の上面図であり、図２（ｂ）は、配電用部材１０の側面図である。また、図３は、第１バスリング１２の上面図である。なお各図面に示される同一または同等の構成要素、部材には、同一の符号を付するものとし、適宜重複した説明は省略する。 FIG. 2A is a top view of the power distribution member 10, and FIG. 2B is a side view of the power distribution member 10. FIG. 3 is a top view of the first bus ring 12. It should be noted that the same or equivalent components and members shown in the drawings are denoted by the same reference numerals, and redundant description will be omitted as appropriate.
　ケース１８は、樹脂部材により環状に形成される。ケース１８は、全周に形成されて各バスリングを収容する収容溝１８ａ、ケース１８の径方向外側の外周面に形成される第１切欠部１８ｂ、第２切欠部１８ｃおよび第３切欠部１８ｄを有する。第１バスリング１２の第１端子２８は第１切欠部１８ｂから突出し、第２バスリング１４の第２端子３０は第２切欠部１８ｃから突出し、第３バスリング１６の第３端子３２は第３切欠部１８ｄから突出する。ケース１８には、第１接続部２２、第２接続部２４および第３接続部２６を径方向外側に露出させるための開口がそれぞれ形成される。 The case 18 is formed in an annular shape by a resin member. The case 18 is formed around the entire circumference and accommodates each bus ring, a first cutout portion 18b, a second cutout portion 18c, and a third cutout portion 18d formed on the outer peripheral surface of the case 18 in the radial direction. Have The first terminal 28 of the first bus ring 12 protrudes from the first notch 18b, the second terminal 30 of the second bus ring 14 protrudes from the second notch 18c, and the third terminal 32 of the third bus ring 16 is the second terminal 32. It protrudes from the 3 notch 18d. The case 18 is formed with openings for exposing the first connection portion 22, the second connection portion 24, and the third connection portion 26 to the outside in the radial direction.
　第１切欠部１８ｂ、第２切欠部１８ｃおよび第３切欠部１８ｄは、それぞれ軸方向の切り欠きの深さが異なるように形成される。第１切欠部１８ｂ、第２切欠部１８ｃおよび第３切欠部１８ｄの順に切り欠きの深さは大きくなるように形成される。これにより、各バスリングの軸方向の位置を設定することができる。なお、軸方向とは、ケース１８の中心軸に沿う方向である。 The first cutout portion 18b, the second cutout portion 18c, and the third cutout portion 18d are formed so as to have different depths of cutouts in the axial direction. The first notch 18b, the second notch 18c, and the third notch 18d are formed in order of increasing depth. Thereby, the position of the axial direction of each bus ring can be set. The axial direction is a direction along the central axis of the case 18.
　図３に示すように、第１バスリング１２は、環状の第１本体部３４、複数の第１端子２８および第１接続部２２を有する。複数の第１端子２８は、第１本体部３４から突出するように屈曲して形成され、周方向に等間隔に配置される。第１本体部３４は、絶縁材料が全周に渡って塗布され、第１端子２８は電気的に接続されるため、少なくとも先端部分が露出されている。 As shown in FIG. 3, the first bus ring 12 includes an annular first body portion 34, a plurality of first terminals 28, and a first connection portion 22. The plurality of first terminals 28 are formed to be bent so as to protrude from the first main body 34 and are arranged at equal intervals in the circumferential direction. Since the first main body 34 is coated with an insulating material over the entire circumference and the first terminal 28 is electrically connected, at least the tip portion is exposed.
　第２バスリング１４は、第２本体部３６、第２端子３０および第２接続部２４を有し、第３バスリング１６は、第３本体部３８、第３端子３２および第３接続部２６を有する。第１バスリング１２、第２バスリング１４および第３バスリング１６は、同じ大きさおよび形状に形成されるため、第２バスリング１４および第３バスリング１６の詳細な説明は省略する。 The second bus ring 14 has a second main body portion 36, a second terminal 30 and a second connection portion 24, and the third bus ring 16 has a third main body portion 38, a third terminal 32 and a third connection portion 26. Have Since the first bus ring 12, the second bus ring 14, and the third bus ring 16 are formed in the same size and shape, detailed description of the second bus ring 14 and the third bus ring 16 is omitted.
　各バスリングを同形状にすることで、全て同じ工程で製造できるため、異なる形状のバスリングを形成する場合と比べて、製造コストを抑えることができる。各バスリングは、円形断面を有する導電性の線材から形成される。円形断面を有する線材は安価に入手でき、製造コストを抑えることができる。 Since each bus ring has the same shape and can be manufactured in the same process, the manufacturing cost can be reduced as compared with the case where bus rings having different shapes are formed. Each bus ring is formed of a conductive wire having a circular cross section. A wire having a circular cross section can be obtained at low cost, and the manufacturing cost can be reduced.
　図４は、第１バスリング１２の第１端子２８について説明するための図である。図４（ａ）は、配電用部材１０において第１端子２８に着目した斜視図であり、図４（ｂ）は、配電用部材１０において第１端子２８に着目した上面図である。 FIG. 4 is a diagram for explaining the first terminal 28 of the first bus ring 12. 4A is a perspective view focusing on the first terminal 28 in the power distribution member 10, and FIG. 4B is a top view focusing on the first terminal 28 in the power distribution member 10.
　第１端子２８は、先端側に形成され、コイルから引き出された導線部材５０を挿通するための挿通孔４６を画成する連結部４２と、第１本体部３４側に形成され、連結部を支持する第１基部４０ａおよび第２基部４０ｂ（これらを区別しない場合、「基部４０」という）と、を有する。図４（ａ）に示すように絶縁材料は、基部４０の根元部分まで塗布され、境界４４から第１端子２８の先端側は露出する。 The first terminal 28 is formed on the distal end side, and is formed on the first body portion 34 side with a connecting portion 42 that defines an insertion hole 46 for inserting the conducting wire member 50 drawn from the coil. A first base portion 40a and a second base portion 40b to be supported (referred to as “base portion 40” when these are not distinguished). As shown in FIG. 4A, the insulating material is applied to the base portion of the base portion 40, and the distal end side of the first terminal 28 is exposed from the boundary 44.
　連結部４２は、環状に形成され、コイルの導線部材５０に電気的に接続される。第１基部４０ａは、連結部４２の一端から延出され、第１本体部３４に連結し、第２基部４０ｂは、連結部４２の他端から延出され、第１本体部３４に連結する。第１端子２８は、屈曲して形成され、第１本体部３４から突出するように突起状に形成される。 The connecting portion 42 is formed in an annular shape and is electrically connected to the coil conductor member 50. The first base portion 40 a extends from one end of the connecting portion 42 and is connected to the first main body portion 34, and the second base portion 40 b extends from the other end of the connecting portion 42 and is connected to the first main body portion 34. . The first terminal 28 is formed to be bent and is formed in a protruding shape so as to protrude from the first main body 34.
　導線部材５０は、コイルの引き出し線であって、断面が矩形の線材により形成される。導線部材５０は、連結部４２に挿通されてヒュージングにより接合される。ここで、図５を参照しつつ、第１バスリング１２の成形について説明する。 The conducting wire member 50 is a lead wire of the coil and is formed of a wire having a rectangular cross section. The conducting wire member 50 is inserted through the connecting portion 42 and joined by fusing. Here, the molding of the first bus ring 12 will be described with reference to FIG.
　図５は、第１バスリング１２の成形について説明するための図である。図５（ａ）は、第１バスリング１２の部分上面図であり、図５（ｂ）は、第１バスリング１２を成形途中の線材５２を示す断面図である。図５（ｂ）に示す線材５２は、中心軸を通る断面である。 FIG. 5 is a view for explaining the molding of the first bus ring 12. FIG. 5A is a partial top view of the first bus ring 12, and FIG. 5B is a cross-sectional view showing the wire 52 in the middle of forming the first bus ring 12. The wire 52 shown in FIG.5 (b) is a cross section which passes along a central axis.
　断面が円形の線材５２は、プレスによって部分的に扁平化される。図５（ｂ）に示すように、線材５２は扁平部５４および円形部５６を有する。扁平部５４は、平板状であり、表裏に平面を有する。扁平部５４の平面の軸方向幅は、円形部５６の線径の半分以上の大きさである。軸方向とは、第１本体部３４の中心軸方向、または挿通孔４６の中心軸方向である。プレスを施した線材５２を屈曲させて第１端子２８を形成する。線材５２は、平らな台座に載せた状態で、所定のプレス器具で押圧する。プレス器具に接触しない面、つまり台座に当接した面は、プレス器具に押圧された面より平らになる。扁平部５４は、平面に垂直な方向の剛性が円形部５６より低くなる。 The wire 52 having a circular cross section is partially flattened by pressing. As shown in FIG. 5B, the wire 52 has a flat part 54 and a circular part 56. The flat part 54 has a flat plate shape and has a flat surface on the front and back. The axial width of the flat surface of the flat portion 54 is more than half the wire diameter of the circular portion 56. The axial direction is the central axial direction of the first main body 34 or the central axial direction of the insertion hole 46. The first wire 28 is formed by bending the pressed wire 52. The wire 52 is pressed with a predetermined pressing instrument in a state where it is placed on a flat base. The surface that does not contact the press device, that is, the surface that contacts the pedestal is flatter than the surface pressed by the press device. The flat portion 54 is lower in rigidity in a direction perpendicular to the plane than the circular portion 56.
　図５（ｂ）に示す線材５２の点Ａ、点Ｂ、点Ｃは、成形後に図５（ａ）に示す第１端子２８の点Ａ、点Ｂ、点Ｃにそれぞれ位置する。扁平部５４の平らな表面および裏面が連結部４２の外周面および内周面となる。プレス器具に押圧された面は、連結部４２の外周面になる。これにより、連結部４２の内周面をいっそう平らにすることができる。また、扁平部５４は、円形部５６より屈曲しやすく、第１端子２８を容易に屈曲形成することができる。 5A. The points A, B, and C of the wire 52 shown in FIG. 5B are positioned at the points A, B, and C of the first terminal 28 shown in FIG. The flat surface and the back surface of the flat portion 54 become the outer peripheral surface and the inner peripheral surface of the connecting portion 42. The surface pressed by the pressing device becomes the outer peripheral surface of the connecting portion 42. Thereby, the inner peripheral surface of the connection part 42 can be made further flat. Further, the flat portion 54 is easier to bend than the circular portion 56, and the first terminal 28 can be easily bent.
　図５（ａ）に示すように点Ｃが基部４０の中途に位置する。すなわち、基部４０は、扁平部５４より第１本体部３４側に円形部５６を有する。基部４０の一部は円形断面を有し、基部４０の剛性を確保できる。 As shown in FIG. 5A, the point C is located in the middle of the base 40. That is, the base portion 40 has a circular portion 56 on the first main body portion 34 side from the flat portion 54. A part of the base 40 has a circular cross section, and the rigidity of the base 40 can be secured.
　図６は、ヒュージングによる連結部４２と導線部材５０の連結について説明するための図である。導線部材５０は、挿通孔４６に挿入され、ヒュージングにより連結部４２の内周面と接合される。連結部４２は、挿通孔４６に挿通された導線部材５０と接触し、線材５２を扁平化されて形成された接触面５８、すなわち連結部４２の内周面を有する。 FIG. 6 is a view for explaining the connection between the connecting portion 42 and the conductor member 50 by fusing. The conducting wire member 50 is inserted into the insertion hole 46 and joined to the inner peripheral surface of the connecting portion 42 by fusing. The connecting portion 42 contacts the conductor member 50 inserted through the insertion hole 46 and has a contact surface 58 formed by flattening the wire 52, that is, an inner peripheral surface of the connecting portion 42.
　連結部４２の第１外周面４２ａと、第１外周面４２ａと平行な第２外周面４２ｂとに一対の電極１００を接触させて、電極１００を通電させる。通電による熱によって連結部４２の内周面と導線部材５０の外周面が溶着する。連結部４２の内周面と導線部材５０の外周面とは、それぞれ平面を有するため面接触をさせやすく、連結部４２が薄くなっているため、容易にヒュージングをすることができる。また、連結部４２が断面円形である場合と比べて、接触面積を大きくでき接合を強固にすることができる。 The pair of electrodes 100 are brought into contact with the first outer peripheral surface 42a of the connecting portion 42 and the second outer peripheral surface 42b parallel to the first outer peripheral surface 42a, and the electrode 100 is energized. The inner peripheral surface of the connecting portion 42 and the outer peripheral surface of the conducting wire member 50 are welded by heat generated by energization. Since the inner peripheral surface of the connecting portion 42 and the outer peripheral surface of the conducting wire member 50 have flat surfaces, they can be brought into surface contact with each other, and the connecting portion 42 is thinned so that fusing can be easily performed. Moreover, compared with the case where the connection part 42 is circular in cross section, a contact area can be enlarged and joining can be strengthened.
　図５に戻る。第１基部４０ａおよび第２基部４０ｂは、連結部４２側にて扁平化された扁平部５４をそれぞれ有する。扁平部５４にて第１基部４０ａは、平らな第１対向面４８ａを有し、扁平部５４にて第２基部４０ｂは平らな第２対向面４８ｂを有する。第１対向面４８ａおよび第２対向面４８ｂは、互いに対向し、当接するように形成される。これにより、第１バスリング１２の形状を安定させ、製造誤差を少なくすることができる。なお、成形後のスプリングバックにより、当接した第１対向面４８ａおよび第２対向面４８ｂが微少に離間して、近接した状態となる。第１対向面４８ａおよび第２対向面４８ｂを当接させることで、基部４０を導通させることができる。 Return to FIG. The first base portion 40a and the second base portion 40b each have a flat portion 54 flattened on the connecting portion 42 side. In the flat portion 54, the first base portion 40a has a flat first opposing surface 48a, and in the flat portion 54, the second base portion 40b has a flat second opposing surface 48b. The first facing surface 48a and the second facing surface 48b are formed to face each other and come into contact with each other. As a result, the shape of the first bus ring 12 can be stabilized and manufacturing errors can be reduced. It should be noted that the first opposed surface 48a and the second opposed surface 48b that are in contact with each other are slightly separated from each other by the spring back after molding, and are brought into close proximity. The base 40 can be conducted by bringing the first facing surface 48a and the second facing surface 48b into contact with each other.
　図７は、第１変形例のバスリング１１２を説明するための図である。図７（ａ）はバスリング１１２の斜視図であり、図７（ｂ）はバスリング１１２の上面図である。バスリング１１２の端子１２８およびその周辺部分を示しており、図示されていないバスリング１１２の他の端子１２８も同様の形状を有する。 FIG. 7 is a diagram for explaining the bus ring 112 of the first modification. FIG. 7A is a perspective view of the bus ring 112, and FIG. 7B is a top view of the bus ring 112. The terminal 128 of the bus ring 112 and its peripheral portion are shown, and other terminals 128 of the bus ring 112 not shown have the same shape.
　第１変形例のバスリング１１２は、図５（ａ）に示す第１バスリング１２と比べて、端子１２８の全域が扁平化された線材で形成されている点で異なる。また、第１変形例のバスリング１１２は、端子１２８の根元から本体部１３４の一部に亘って扁平化されている。 The bus ring 112 of the first modified example is different from the first bus ring 12 shown in FIG. 5A in that the entire region of the terminal 128 is formed of a flattened wire. The bus ring 112 according to the first modification is flattened from the base of the terminal 128 to a part of the main body 134.
　端子１２８は、コイルから引き出された導線部材を挿通するための挿通孔１４６を画成する連結部１４２と、本体部１３４に連設され、連結部１４２を支持する第１基部１４８ａおよび第２基部１４８ｂ（これらを区別しない場合「基部１４８」という）と、を有する。 The terminal 128 includes a connecting portion 142 that defines an insertion hole 146 for inserting a conductive wire member drawn from the coil, and a first base portion 148 a and a second base portion that are connected to the main body portion 134 and support the connecting portion 142. 148b (referred to as “base 148” when these are not distinguished).
　バスリング１１２を形成するための線材は、もとは円形断面を有しており、図７（ａ）に示すように、本体部１３４の端子１２８から離れた部分は、円形断面を有する形状である。線材を部分的にプレスして扁平化させ、扁平化された線材の部分を屈曲することで、端子１２８を形成する。端子１２８は、少なくとも端子１２８の全域に亘って、扁平化された線材の部分を屈曲することで形成される。少なくとも端子１２８の全域に亘って形成されるとは、端子１２８だけであってよく、端子１２８および本体部１３４の一部も含んで形成されてよい。 The wire for forming the bus ring 112 originally has a circular cross section, and as shown in FIG. 7 (a), the portion away from the terminal 128 of the main body 134 has a circular cross section. is there. The wire 128 is partially pressed and flattened, and the flattened wire portion is bent to form the terminal 128. The terminal 128 is formed by bending a flattened portion of the wire material over at least the entire region of the terminal 128. Only the terminal 128 may be formed over the entire region of the terminal 128, and the terminal 128 and a part of the main body 134 may be included.
　端子１２８の連結部１４２の内周面は、扁平化により平らに形成される。つまり、挿通孔１４６の軸方向に沿って平面状に形成される。これにより、コイルの導線部材５０と連結部１４２をヒュージングにより接合する際、面接触をさせやすく、接触面積を大きくでき、接合を強固にできる。また、端子１２８全体を扁平化された線材で形成することで、軸方向に対する端子１２８の剛性を高めることができる。 The inner peripheral surface of the connecting portion 142 of the terminal 128 is formed flat by flattening. That is, it is formed in a planar shape along the axial direction of the insertion hole 146. Thereby, when joining the conducting wire member 50 and the connection part 142 of a coil by fusing, surface contact can be made easy, a contact area can be enlarged, and joining can be strengthened. Moreover, the rigidity of the terminal 128 with respect to an axial direction can be improved by forming the whole terminal 128 with the flattened wire.
　コイルの導線部材５０は端子１２８の数に応じて突出しており、それぞれの挿通孔１４６に通される。その際、いずれかの導線部材５０が基部１４８や連結部１４２に当たって端子１２８を軸方向に変形させる可能性がある。端子１２８の軸方向の剛性を高めることで、複数の端子１２８の挿通孔１４６に導線部材５０をそれぞれ挿入する際に、端子１２８の軸方向の変形を抑えることができる。 The coil conductor member 50 protrudes according to the number of terminals 128 and passes through the insertion holes 146. At that time, there is a possibility that any one of the conductor members 50 hits the base portion 148 or the connecting portion 142 to deform the terminal 128 in the axial direction. By increasing the rigidity of the terminal 128 in the axial direction, deformation of the terminal 128 in the axial direction can be suppressed when the conductor members 50 are inserted into the insertion holes 146 of the plurality of terminals 128, respectively.
　図７（ｂ）に示すアール端１５２ａは端子１２８と本体部１３４の境界であり、端子１２８の基部１４８に連設する本体部１３４の一部も扁平化された線材により形成される。本体部１３４の外接円１５６と本体部１３４の接点が、扁平部分の扁平端１５４となる。端子１２８から本体部１３４の一部に亘って、扁平化された線材の部分を屈曲することで、端子１２８から本体部１３４に連なる屈曲部分であるアール１５２の曲げ加工を容易にできる。 7B is a boundary between the terminal 128 and the main body 134, and a part of the main body 134 connected to the base 148 of the terminal 128 is also formed of a flattened wire. A circumscribed circle 156 of the main body part 134 and a contact point of the main body part 134 become a flat end 154 of the flat part. By bending the flattened portion of the wire material from the terminal 128 to a part of the main body portion 134, it is possible to easily bend the round 152 that is a bent portion continuous from the terminal 128 to the main body portion 134.
　図７（ｂ）では、本体部１３４の扁平部分１３４ａが、直線状に形成された状態を示すが、この態様に限られず、外接円１５６に沿って湾曲されてよい。 7 (b) shows a state in which the flat portion 134a of the main body 134 is formed in a straight line, but is not limited to this aspect, and may be curved along the circumscribed circle 156.
　図７（ａ）に示すように、扁平化された線材で形成された本体部１３４の扁平部分１３４ａにおいて、軸方向長さＬ１は、径方向長さＬ２より大きくなるように形成される。これにより、連結部１４２の内周面の面積を大きくでき、導線部材５０と接触可能な面積を増すことができる。なお、図７（ａ）に示す軸方向長さＬ１を径方向長さＬ２で割ったものを扁平率Ｌ１／Ｌ２とする。 7A, in the flat portion 134a of the main body 134 formed of a flattened wire, the axial length L1 is formed to be larger than the radial length L2. Thereby, the area of the internal peripheral surface of the connection part 142 can be enlarged, and the area which can contact the conducting wire member 50 can be increased. Note that the flatness L1 / L2 is obtained by dividing the axial length L1 shown in FIG. 7A by the radial length L2.
　図８は、扁平化された線材の扁平率について説明するための図である。図８に示す縦軸は、断面２次モーメントＩｚを示し、横軸は扁平率Ｌ１／Ｌ２を示す。 FIG. 8 is a diagram for explaining the flatness of the flattened wire. The vertical axis | shaft shown in FIG. 8 shows the cross-sectional secondary moment Iz, and a horizontal axis shows flatness L1 / L2.
　端子１２８を成形するための線材の扁平率は、断面２次モーメントが所定値Ｉｚａ以上となるが好ましい。例えば断面２次モーメントの所定値Ｉｚａは、扁平化する前の円形断面の線材の断面２次モーメントであり、１．６６である。 The flatness of the wire rod for forming the terminal 128 is preferably such that the moment of inertia of the cross section is equal to or greater than a predetermined value Iza. For example, the predetermined value Iza of the cross-sectional secondary moment is the cross-sectional secondary moment of the wire having a circular cross section before flattening, and is 1.66.
　そこで製造誤差も含めて、扁平率が１．５以上となる線材の部分により、端子１２８が形成される。これにより、端子１２８を軸方向に分厚くして端子１２８の軸方向の剛性を高めることができ、端子１２８にコイルの導線部材５０を挿入する際の端子１２８の変形を抑えることができる。より好ましくは、扁平率が１．６６以上となる線材の部分により、端子１２８が形成される。また、扁平率は、３以下であってよく、これにより、端子１２８の径方向の剛性の過剰な低下を抑えることができる。 Therefore, including the manufacturing error, the terminal 128 is formed by the portion of the wire having a flatness ratio of 1.5 or more. Accordingly, the terminal 128 can be thickened in the axial direction to increase the axial rigidity of the terminal 128, and deformation of the terminal 128 when the coil conductor member 50 is inserted into the terminal 128 can be suppressed. More preferably, the terminal 128 is formed by the portion of the wire having an aspect ratio of 1.66 or more. Further, the flatness ratio may be 3 or less, whereby an excessive decrease in the radial rigidity of the terminal 128 can be suppressed.
　図９は、第２変形例のバスリング２１２について説明するための図である。バスリング２１２は、環状の本体部２３４と、本体部２３４から突出するように形成される端子２２８とを有する。端子２２８は、連結部２４２と、第１基部２４８ａおよび第２基部２４８ｂ（これらを区別しない場合「基部２４８」という）とを有する。 FIG. 9 is a diagram for explaining the bus ring 212 of the second modified example. The bus ring 212 includes an annular main body 234 and a terminal 228 formed so as to protrude from the main body 234. The terminal 228 includes a connecting portion 242, and a first base portion 248a and a second base portion 248b (referred to as “base portion 248” if they are not distinguished from each other).
　第２変形例のバスリング２１２は、図７に示す第１変形例のバスリング１１２と比べて、基部２４８と連結部２４２で軸方向の長さが異なるように形成される。連結部２４２の軸方向長さＬ３は、基部２４８の軸方向長さＬ１より長くなるように形成される。これにより、連結部２４２の内周面の面積を大きくでき、挿通孔２４６に挿入される導線部材５０との接触面積を大きくすることができる。 The bus ring 212 of the second modified example is formed so that the length in the axial direction is different between the base portion 248 and the connecting portion 242 as compared with the bus ring 112 of the first modified example shown in FIG. An axial length L3 of the connecting portion 242 is formed to be longer than an axial length L1 of the base portion 248. Thereby, the area of the internal peripheral surface of the connection part 242 can be enlarged, and a contact area with the conducting wire member 50 inserted in the insertion hole 246 can be enlarged.
　図１０は、第３変形例の配電用部材について説明するための図である。第３変形例の配電用部材は、導電性の線材から形成される配電用のバスリング３１２と、バスリング３１２を保持する環状のケース１１８と、を備える。図１０では、配電用部材の一部を示すため、バスリング３１２は一つであるが、ケース１１８内で積層されてよい。 FIG. 10 is a diagram for explaining a power distribution member of a third modification. The power distribution member of the third modified example includes a power distribution bus ring 312 formed from a conductive wire, and an annular case 118 that holds the bus ring 312. In FIG. 10, there is one bus ring 312 to show a part of the power distribution member, but they may be stacked in the case 118.
　バスリング３１２は、環状の本体部３３４と、本体部３３４から突出するように屈曲して形成される端子３２８と、を有する。端子３２８は　導線部材５０を挿通するための挿通孔３４６を画成する連結部３４２と、本体部３３４に連結され、連結部３４２を支持する第１基部３４８ａおよび第２基部３４８ｂ（これらを区別しない場合「基部３４８」という）とを有する。バスリング３１２は、端子３２８から本体部３３４の一部に亘って、扁平化された線材の部分を屈曲することで形成される。扁平端３５４より端子３２８側にて、本体部３３４の一部が扁平化された線材により形成される。 The bus ring 312 includes an annular main body 334 and a terminal 328 formed by bending so as to protrude from the main body 334. The terminal 328 includes a connecting portion 342 that defines an insertion hole 346 for inserting the conducting wire member 50, and a first base portion 348a and a second base portion 348b that are connected to the main body portion 334 and support the connecting portion 342. Case "base 348"). The bus ring 312 is formed by bending a flattened portion of the wire from the terminal 328 to a part of the main body 334. On the terminal 328 side from the flat end 354, a part of the main body portion 334 is formed of a flattened wire.
　ケース部材１１８は、バスリング３１２を収容する収容部１６４と、収容部１６４を画成する外壁部１６０に形成され、複数の端子３２８をそれぞれ出す複数の切欠部１６６と、外壁部１６０における切欠部１６６の縁部１６８から収容部１６４の内側に径方向に突出する突部１７０と、を有する。 The case member 118 is formed in an accommodating portion 164 that accommodates the bus ring 312, an outer wall portion 160 that defines the accommodating portion 164, a plurality of notches 166 that respectively project a plurality of terminals 328, and a notch portion in the outer wall portion 160. And a protrusion 170 protruding radially from the edge 168 of the 166 to the inside of the accommodating portion 164.
　突部１７０は、扁平化がおよぶ本体部３３４に当接する。本体部３３４の一部は、扁平化により収容部１６４の外壁部１６０および内壁部１６２の間隔、つまり溝幅より薄くなっている。そこで突部１７０により本体部３３４の径方向の位置規制をし、収容部１６４で本体部３３４が変形または移動して端子３２８が移動することを抑える。これにより、端子３２８のガタツキを抑え、複数の端子３２８のそれぞれを複数の導線部材５０に挿入する作業を容易にできる。 The projecting portion 170 abuts on the main body portion 334 that is flattened. A part of the main body portion 334 is thinner than the interval between the outer wall portion 160 and the inner wall portion 162 of the accommodating portion 164, that is, the groove width, due to flattening. Therefore, the radial position of the main body 334 is restricted by the protrusion 170, and the main body 334 is prevented from being deformed or moved by the accommodating portion 164 and the terminal 328 is prevented from moving. Thereby, rattling of the terminal 328 can be suppressed, and the operation of inserting each of the plurality of terminals 328 into the plurality of conductor members 50 can be facilitated.
　突部１７０は径方向内向きに突出する。突部１７０は、線材の扁平化により本体部３３４が径方向に薄くなった量だけ突出するように形成されてよい。第３変形例では端子３２８が本体部３３４から径方向外向きに突出する態様を示すが、端子３２８が径方向内向きに突出する場合には、端子３２８が出る切欠部１６６は内壁部１６２に形成され、突部１７０は、内壁部１６２の切欠部１６６の縁部１６８から径方向外向きに突出する。 The protrusion 170 protrudes inward in the radial direction. The protrusion 170 may be formed so as to protrude by the amount that the main body 334 is thinned in the radial direction by flattening the wire. Although the terminal 328 protrudes radially outward from the main body 334 in the third modification, when the terminal 328 protrudes radially inward, the notch 166 from which the terminal 328 protrudes is formed on the inner wall 162. The protrusion 170 is formed and protrudes radially outward from the edge 168 of the notch 166 of the inner wall 162.
　図１１は、第４変形例のバスリング４１２について説明するための図である。図１１（ａ）はバスリング４１２の斜視図であり、図１１（ｂ）はバスリング４１２の上面図であり、図１１（ｃ）はバスリング４１２の拡大部分断面図である。バスリング４１２の端子４２８およびその周辺部分を示しており、図示されていないバスリング４１２の他の端子４２８も同様の形状を有する。 FIG. 11 is a diagram for explaining the bus ring 412 of the fourth modified example. FIG. 11A is a perspective view of the bus ring 412, FIG. 11B is a top view of the bus ring 412, and FIG. 11C is an enlarged partial cross-sectional view of the bus ring 412. The terminal 428 of the bus ring 412 and its peripheral part are shown, and other terminals 428 of the bus ring 412 not shown have the same shape.
　第４変形例のバスリング４１２は、図５（ａ）に示す第１バスリング１２と比べて、端子４２８の全域が扁平化された線材で形成されている点で異なる。また、第４変形例のバスリング４１２は、端子４２８の根元から本体部４３４の一部に亘って扁平化されている。また、第４変形例のバスリング４１２は、絶縁被膜４５６が予め施された導電性の線材を用いて形成され、バスリング４１２の本体部４３４には絶縁被膜４５６が施されている。 The bus ring 412 of the fourth modified example is different from the first bus ring 12 shown in FIG. 5A in that the entire region of the terminal 428 is formed of a flattened wire. The bus ring 412 of the fourth modification is flattened from the base of the terminal 428 to a part of the main body 434. Further, the bus ring 412 of the fourth modification is formed using a conductive wire to which an insulating coating 456 has been applied in advance, and the main body 434 of the bus ring 412 has an insulating coating 456 applied thereto.
　バスリング４１２は、環状の本体部４３４と、扁平化された線材の部分を本体部４３４から突出するように屈曲して形成される複数の端子４２８と、を備える。端子４２８は、コイルから引き出された導線部材を挿通するための挿通孔４４６を画成する連結部４４２と、本体部４３４に連設し、連結部４４２を支持する第１基部４４８ａおよび第２基部４４８ｂ（これらを区別しない場合「基部４４８」という）と、を有する。 The bus ring 412 includes an annular main body 434 and a plurality of terminals 428 formed by bending a flattened wire portion so as to protrude from the main body 434. The terminal 428 includes a connecting portion 442 that defines an insertion hole 446 for inserting a conductive wire member drawn from the coil, and a first base portion 448 a and a second base portion that are connected to the main body portion 434 and support the connecting portion 442. 448b (referred to as “base 448” if these are not distinguished).
　バスリング４１２を形成するための線材は、もとは円形断面を有しており、本体部４３４の端子４２８から離れた部分は、円形断面を有する形状である。線材を部分的にプレスして扁平化させ、扁平化された線材の部分を屈曲することで、端子４２８を形成する。端子４２８は、端子４２８の全域に亘って、扁平化された線材の部分を屈曲することで形成される。 The wire rod for forming the bus ring 412 originally has a circular cross section, and a portion of the main body 434 away from the terminal 428 has a shape having a circular cross section. The terminal 428 is formed by partially pressing the wire to flatten it, and bending the flattened wire. The terminal 428 is formed by bending a flattened portion of the wire material over the entire area of the terminal 428.
　端子４２８の連結部４４２の内周面は、扁平化により平らに形成される。つまり、挿通孔４４６の軸方向に沿って平面状に形成される。これにより、コイルの導線部材５０と連結部４４２をヒュージングにより接合する際、面接触をさせやすく、接触面積を大きくでき、接合を強固にできる。また、端子４２８全体を扁平化された線材で形成することで、軸方向に対する端子４２８の剛性を高めることができる。 The inner peripheral surface of the connecting portion 442 of the terminal 428 is formed flat by flattening. That is, it is formed in a planar shape along the axial direction of the insertion hole 446. Thereby, when joining the conducting wire member 50 and the connection part 442 of a coil by fusing, surface contact can be made easy, a contact area can be enlarged, and joining can be strengthened. Further, by forming the entire terminal 428 with a flattened wire, the rigidity of the terminal 428 in the axial direction can be increased.
　コイルの導線部材５０は端子４２８の数に応じて突出しており、それぞれの挿通孔４４６に通される。その際、いずれかの導線部材５０が基部４４８や連結部４４２に当たって端子４２８を軸方向に変形させる可能性がある。端子４２８の軸方向の剛性を高めることで、複数の端子４２８の挿通孔４４６に導線部材５０をそれぞれ挿入する際に、端子４２８の軸方向の変形を抑えることができる。 The coil conductor member 50 protrudes in accordance with the number of terminals 428 and passes through the respective insertion holes 446. At that time, there is a possibility that any one of the conducting wire members 50 hits the base portion 448 or the connecting portion 442 to deform the terminal 428 in the axial direction. By increasing the rigidity of the terminal 428 in the axial direction, it is possible to suppress deformation of the terminal 428 in the axial direction when the conductive wire members 50 are respectively inserted into the insertion holes 446 of the plurality of terminals 428.
　図１１（ｂ）に示すアール端４５２ａは端子４２８と本体部４３４の境界であり、端子４２８の基部４４８に連設する本体部４３４の一部も扁平化された線材により形成される。扁平部分の扁平端４５４となる。端子４２８から本体部４３４の扁平部分４３４ａに亘って、扁平化された線材の部分を屈曲することで、端子４２８から本体部４３４に連なる屈曲部分であるアール４５２の曲げ加工を容易にできる。 11B is a boundary between the terminal 428 and the main body 434, and a part of the main body 434 connected to the base 448 of the terminal 428 is also formed by a flattened wire. It becomes the flat end 454 of the flat portion. By bending the flattened portion of the wire rod from the terminal 428 to the flat portion 434a of the main body portion 434, it is possible to easily bend the round 452, which is a bent portion continuous from the terminal 428 to the main body portion 434.
　また、絶縁被膜４５６により、バスリング４１２をそのまま積層して、本体部４３４同士が接触しても絶縁性が確保される。また、図１１（ｃ）に示すように、扁平化された線材で形成された部分は、絶縁被膜４５６が剥がれて導線部４５７が露出している。バスリング４１２において扁平化されていない本体部４３４の円形断面部分４３４ｂは、絶縁被膜４５６が剥がれていない。円形断面部分４３４ｂと扁平部分４３４ａの間には扁平に至る傾斜部分４３４ｃが形成される。傾斜部分４３４ｃも絶縁被膜４５６が剥がされて露出する。 In addition, the bus ring 412 is laminated as it is by the insulating coating 456, and insulation is ensured even if the main body portions 434 are in contact with each other. Moreover, as shown in FIG.11 (c), as for the part formed with the flattened wire, the insulating film 456 peels off and the conducting wire part 457 is exposed. The insulating coating 456 is not peeled off from the circular cross-sectional portion 434 b of the main body 434 that is not flattened in the bus ring 412. Between the circular cross-section portion 434b and the flat portion 434a, an inclined portion 434c reaching the flat shape is formed. The inclined portion 434c is also exposed when the insulating film 456 is peeled off.
　図１１（ａ）に示すように、扁平化された線材で形成された本体部４３４の扁平部分４３４ａにおいて、軸方向長さＬ１は、径方向長さＬ２より大きくなるように形成される。これにより、連結部４４２の内周面の面積を大きくでき、導線部材５０と接触可能な面積を増すことができる。なお、図１１（ａ）に示す軸方向長さＬ１を径方向長さＬ２で割ったものを扁平率Ｌ１／Ｌ２とする。 As shown in FIG. 11A, in the flat portion 434a of the main body portion 434 formed of a flattened wire, the axial length L1 is formed to be larger than the radial length L2. Thereby, the area of the internal peripheral surface of the connection part 442 can be enlarged, and the area which can contact the conducting wire member 50 can be increased. In addition, what divided the axial direction length L1 shown to Fig.11 (a) by the radial direction length L2 is set to flatness L1 / L2.
　図１２は、第４変形例のバスリング４１２の成形途中の工程について説明するための図である。図１２（ａ）は、バスリング４１２を形成する前の状態を示し、線材４７０の中心軸に沿った断面を示す。図１２（ｂ）は、線材４７０に対してプレス加工を施した状態を示す。図１２（ｃ）は、線材４７０の絶縁被膜が剥がされた状態で、屈曲加工前の状態を示す。 FIG. 12 is a diagram for explaining a process in the middle of forming the bus ring 412 of the fourth modified example. FIG. 12A shows a state before the bus ring 412 is formed, and shows a cross section along the central axis of the wire 470. FIG. 12B shows a state where the wire rod 470 is pressed. FIG.12 (c) shows the state before a bending process in the state in which the insulating film of the wire 470 was peeled off.
　図１２（ａ）に示すように、線材４７０は、導線部４５７に予め絶縁被膜４５６が施されたものである。絶縁被膜４５６がついていな線材を成形して本体部４３４に絶縁処理を施すコストと比べて、予め絶縁被膜４５６が施された導線部４５７を用いることで製造コストを低減できる。 As shown in FIG. 12 (a), the wire 470 is obtained by applying an insulating coating 456 to the conducting wire portion 457 in advance. Compared with the cost of forming a wire without an insulating coating 456 and performing an insulation treatment on the main body 434, the manufacturing cost can be reduced by using the conductive wire portion 457 to which the insulating coating 456 has been applied in advance.
　図１２（ｂ）に示すように、線材４７０に対して部分的にプレス加工を行い、線材４７０を扁平化させて扁平部４７６が形成される。絶縁被膜４５６を有する線材４７０がプレス機により押圧される際、導線部４５７に傷がつくことを絶縁被膜４５６により抑えることができる。プレスされない部分は、初期の円形断面のままであり、線材４７０は、扁平部４７６と円形断面部４７８とに区分される。プレス加工の際、所定のプレス機器によってプレス加工と同時に絶縁被膜４５６に切り込み４７４が形成される。 As shown in FIG. 12B, the wire rod 470 is partially pressed to flatten the wire rod 470, and a flat portion 476 is formed. When the wire 470 having the insulating coating 456 is pressed by a press, the insulating coating 456 can suppress damage to the conductive wire portion 457. The portion that is not pressed remains the initial circular cross section, and the wire 470 is divided into a flat portion 476 and a circular cross sectional portion 478. At the time of pressing, a notch 474 is formed in the insulating coating 456 simultaneously with the pressing by a predetermined pressing device.
　切り込み４７４は、露出させるべき端子４２８の絶縁被膜４５６を剥がすために形成され、導線部４５７を傷つけないように線材４７０のうち絶縁被膜４５６に形成される。切り込み４７４は、扁平部４７６と円形断面部４７８の境界部分や、円形断面部４７８のうち扁平部４７６の近傍に形成される。扁平部４７６の両側に切り込み４７４が形成される。切り込み４７４は絶縁被膜４５６の円形断面のうち周方向の一部に形成され、絶縁被膜４５６が線材４７０の中心軸方向に部分的に連結してよい。円形断面部４７８と扁平部４７６の間には扁平に至る傾斜部４８０が形成される。傾斜部４８０も絶縁被膜４５６が剥がされて露出する。プレス加工工程と同時に絶縁被膜４５６に剥がすための切り込み４７４を形成することで、製造コストを抑えることができる。なお、切り込み４７４はレーザ切断によりプレス加工前に形成されてよい。 The notch 474 is formed to peel off the insulating film 456 of the terminal 428 to be exposed, and is formed in the insulating film 456 of the wire 470 so as not to damage the conductor portion 457. The notch 474 is formed in the boundary portion between the flat portion 476 and the circular cross section 478 or in the vicinity of the flat portion 476 in the circular cross section 478. Cuts 474 are formed on both sides of the flat portion 476. The notch 474 may be formed in a part in the circumferential direction of the circular cross section of the insulating coating 456, and the insulating coating 456 may be partially connected in the central axis direction of the wire 470. Between the circular cross section 478 and the flat portion 476, an inclined portion 480 reaching the flat shape is formed. The inclined portion 480 is also exposed when the insulating coating 456 is peeled off. By forming the cut 474 for peeling off the insulating coating 456 at the same time as the pressing process, the manufacturing cost can be reduced. Note that the notch 474 may be formed by laser cutting before press working.
　図１２（ｃ）に示すように、切り込み４７４間の扁平部４７６の絶縁被膜４５６が剥がされている。扁平部４７６の絶縁被膜４５６はプレス加工を施すことで、導線部４５７から部分的に浮いて剥がれやすくなり、切り込み４７４から容易に剥がすことができる。このように、プレス加工を利用して絶縁被膜４５６を剥がすことで製造コストを抑えることができる。絶縁被膜４５６を剥がす工程は、プレス加工工程中にプレス機器を用いて実行してもよく、プレス加工工程後に、所定の治具や人手により実行してもよい。 As shown in FIG. 12C, the insulating coating 456 of the flat portion 476 between the notches 474 is peeled off. When the insulating coating 456 of the flat portion 476 is pressed, the insulating coating 456 is partially lifted from the conductive wire portion 457 and easily peeled off, and can be easily peeled off from the cut 474. In this manner, the manufacturing cost can be suppressed by removing the insulating coating 456 using press working. The step of peeling the insulating coating 456 may be performed using a press device during the press working step, or may be performed by a predetermined jig or manually after the press working step.
　一部を扁平化して絶縁被膜４５６を剥がした線材４７０を用いて、端子４２８および環状の本体部４３４を屈曲加工をして、バスリング４１２を成形する。 The terminal 428 and the annular main body 434 are bent using the wire 470 that is partially flattened and the insulating coating 456 is peeled off to form the bus ring 412.
　本発明は上述の実施形態に限定されるものではなく、当業者の知識に基づいて各種の設計変更等の変形を実施形態に対して加えることも可能であり、そのような変形が加えられた実施形態も本発明の範囲に含まれうる。 The present invention is not limited to the above-described embodiments, and various modifications such as design changes can be added to the embodiments based on the knowledge of those skilled in the art, and such modifications have been added. Embodiments may also be included within the scope of the present invention.
　実施形態では、第１バスリング１２の第１端子２８が第１本体部３４から径方向外向きに突出する態様を示したが、この態様に限られない。例えば、バスリングの第１本体部３４から第１端子２８を径方向内向きに突出するように形成する。これにより、コイルの端子を内側に配置することができる。 In the embodiment, the mode in which the first terminal 28 of the first bus ring 12 protrudes outward in the radial direction from the first main body 34 is shown, but the present invention is not limited to this mode. For example, the first terminal 28 is formed so as to protrude radially inward from the first main body 34 of the bus ring. Thereby, the terminal of a coil can be arrange | positioned inside.
　実施形態では、円形断面を有する線材５２を扁平化して平面状の接触面５８を形成する態様を示したが、この態様に限られない。例えば、連結部４２の接触面５８は、コイルの導線部材の外周面の形状に応じて形成され、導線部材の外周面に面接触可能に形成される。コイルの導線部材が円形断面を有する場合、接触面５８はその導線部材に応じて円筒形状に形成される。 In the embodiment, a mode in which the flat contact surface 58 is formed by flattening the wire 52 having a circular cross section is not limited to this mode. For example, the contact surface 58 of the connection part 42 is formed according to the shape of the outer peripheral surface of the coil conductor member, and is formed so as to be able to come into surface contact with the outer periphery surface of the conductor member. When the conductor member of the coil has a circular cross section, the contact surface 58 is formed in a cylindrical shape according to the conductor member.
　１０　配電用部材、　１２　第１バスリング、　１４　第２バスリング、　１６　第３バスリング、　１８　ケース、　１８ａ　収容溝、　１８ｂ　第１切欠部、　１８ｃ　第２切欠部、　１８ｄ　第３切欠部、　２０　留め具、　２２　第１接続部、　２４　第２接続部、　２６　第３接続部、　２８　第１端子、　３０　第２端子、　３２　第３端子、　３４　第１本体部、　３６　第２本体部、　３８　第３本体部、　４０ａ　第１基部、　４０ｂ　第２基部、　４２　連結部、　４４　境界、　４６　挿通孔、　４８ａ　第１対向面、　４８ｂ　第２対向面、　５０　導線部材、　５２　線材、　５４　扁平部、　５６　円形部、　５８　接触面、　１００　電極。 10 Distribution members, 12 1st bus ring, 14 2nd bus ring, 16 3rd bus ring, 18 case, 18a receiving groove, 18b 1st notch, 18c 2nd notch, 18d 3rd notch, 20 Tool, 22 1st connection part, 24 2nd connection part, 26 3rd connection part, 28 1st terminal, 30 2nd terminal, 32 3rd terminal, 34 1st body part, 36 2nd body part, 38 3rd part Main part, 40a 1st base, 40b 2nd base, 42 connecting part, 44 boundary, 46 insertion hole, 48a 1st opposing surface, 48b 2nd opposing surface, 50 conductor member, 52 wire rod, 54 flat part, 56 circular part , 58 contact surface, 100 electrodes.
　本発明は、配電用のバスリングおよびそれを備える配電用部材に関する。 The present invention relates to a power distribution bus ring and a power distribution member including the same.

Claims (12)

  1. 　導電性の線材から形成される配電用のバスリングであって、
    　環状の本体部と、
    　本体部から突出するように屈曲して形成される複数の端子と、を備え、
    　前記端子は、
    　先端側に形成され、コイルから引き出された導線部材を挿通するための挿通孔を画成する連結部と、
    　前記本体部側に形成され、前記連結部を支持する基部と、を有し、
    　前記連結部は、前記導線部材の外周面に面接触可能な接触面を有し、
    　前記接触面は、前記線材を扁平化されて形成されることを特徴とするバスリング。     A power distribution bus ring formed from a conductive wire,
    An annular body,
    A plurality of terminals formed by bending so as to protrude from the main body, and
    The terminal is
    A connecting portion that is formed on the distal end side and that defines an insertion hole for inserting a conducting wire member drawn from the coil;
    A base portion formed on the main body portion side and supporting the connecting portion;
    The connecting portion has a contact surface capable of surface contact with the outer peripheral surface of the conducting wire member
    The bus ring according to claim 1, wherein the contact surface is formed by flattening the wire.
  2. 　前記連結部は、前記導線部材の外周面の形状に応じて形成されることを特徴とする請求項１に記載のバスリング。 The bus ring according to claim 1, wherein the connecting portion is formed according to a shape of an outer peripheral surface of the conducting wire member.
  3. 　前記基部は、前記連結部の一端から延出され、前記本体部に連結する第１基部と、前記連結部の他端から延出され、前記本体部に連結する第２基部と、を有し、
    　前記第１基部および前記第２基部は、前記連結部側にて扁平化され、互いに対向する平らな対向面を含む扁平部をそれぞれ有することを特徴とする請求項１または２に記載のバスリング。     The base includes a first base extending from one end of the connecting portion and connected to the main body, and a second base extending from the other end of the connecting portion and connected to the main body. ,
    The said 1st base and the said 2nd base are flattened by the said connection part side, respectively, and have a flat part containing the flat opposing surface which mutually opposes, The bus ring of Claim 1 or 2 characterized by the above-mentioned. .
  4. 　前記第１基部および前記第２基部の対向面は、互いに当接または近接することを特徴とする請求項３に記載のバスリング。 The bus ring according to claim 3, wherein the opposing surfaces of the first base and the second base are in contact with or close to each other.
  5. 　前記第１基部および前記第２基部は、前記扁平部より前記本体部側に断面が円形に形成される円形部をさらに有することを特徴とする請求項３または４に記載のバスリング。 The bus ring according to claim 3 or 4, wherein the first base part and the second base part further include a circular part having a circular cross section formed on the main body part side from the flat part.
  6. 　前記端子は、少なくとも前記端子の全域に亘って扁平化された前記線材の部分を屈曲することで形成されたことを特徴とする請求項１または２に記載のバスリング。 The bus ring according to claim 1 or 2, wherein the terminal is formed by bending a portion of the wire material flattened over at least the entire area of the terminal.
  7. 　前記連結部は、前記挿通孔の軸方向の長さが前記基部より長くなるように形成されていることを特徴とする請求項６に記載のバスリング。 The bus ring according to claim 6, wherein the connecting portion is formed so that an axial length of the insertion hole is longer than the base portion.
  8. 　前記端子から前記本体部の一部に亘って扁平化された前記線材の部分を屈曲することで形成されることを特徴とする請求項６または７に記載のバスリング。 The bus ring according to claim 6 or 7, wherein the bus ring is formed by bending a portion of the wire material flattened from the terminal to a part of the main body.
  9. 　絶縁被膜が施された前記線材を用いて形成されることを特徴とする請求項１から８のいずれかに記載のバスリング。 The bus ring according to any one of claims 1 to 8, wherein the bus ring is formed by using the wire having an insulating coating.
  10. 　前記線材の絶縁被膜は、前記線材を扁平化する際のプレス加工により剥がすための切り込みを形成されることを特徴とする請求項９に記載のバスリング。 The bus ring according to claim 9, wherein the insulating coating of the wire is formed with a notch for peeling off by pressing when the wire is flattened.
  11. 　扁平化された前記線材の部分は、前記線材の絶縁被膜が剥がれていることを特徴とする請求項１０に記載のバスリング。 The bus ring according to claim 10, wherein the flattened portion of the wire material has an insulating coating of the wire material peeled off.
  12. 　導電性の線材から形成される配電用のバスリングと、
    　前記バスリングを保持する環状のケース部材と、を備え、
    　前記バスリングは、
    　環状の本体部と、
    　前記本体部から突出するように屈曲して形成される複数の端子と、を有し、
    　前記ケース部材は、
    　前記バスリングを収容する収容部と、
    　前記収容部を画成する壁部に形成され、複数の前記端子をそれぞれ出す複数の切欠部と、
    　前記壁部における前記切欠部の縁部から前記収容部の内側に突出する突部と、を有し、
    　前記バスリングは、前記端子から前記本体部の一部に亘って、扁平化された前記線材の部分を屈曲することで形成され、
    　前記連結部の内周面は、扁平化により平らに形成され、
    　前記突部は、扁平化がおよぶ前記本体部に当接することを特徴とする配電用部材。     A power distribution bus ring formed from conductive wire;
    An annular case member for holding the bus ring,
    The bus ring is
    An annular body,
    A plurality of terminals formed by bending so as to protrude from the main body,
    The case member is
    An accommodating portion for accommodating the bus ring;
    A plurality of notches that are formed in the wall portion defining the housing portion, and respectively project the plurality of terminals;
    A protrusion projecting from the edge of the notch in the wall to the inside of the housing,
    The bus ring is formed by bending the flattened portion of the wire material over a part of the main body from the terminal,
    The inner peripheral surface of the connecting portion is formed flat by flattening,
    The power distribution member according to claim 1, wherein the protrusion comes into contact with the main body that is flattened.
PCT/JP2014/074544 2013-09-19 2014-09-17 Bus ring and electrical-power-distribution member provided therewith WO2015041243A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015537940A JP6178422B2 (en) 2013-09-19 2014-09-17 Bus ring and power distribution member comprising the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2013-194280 2013-09-19
JP2013194280 2013-09-19
PCT/JP2014/068823 WO2015040943A1 (en) 2013-09-19 2014-07-15 Bus ring
JPPCT/JP2014/068823 2014-07-15

Publications (1)

Publication Number Publication Date
WO2015041243A1 true WO2015041243A1 (en) 2015-03-26

Family

ID=52688603

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2014/068823 WO2015040943A1 (en) 2013-09-19 2014-07-15 Bus ring
PCT/JP2014/074544 WO2015041243A1 (en) 2013-09-19 2014-09-17 Bus ring and electrical-power-distribution member provided therewith

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/068823 WO2015040943A1 (en) 2013-09-19 2014-07-15 Bus ring

Country Status (2)

Country Link
JP (1) JP6178422B2 (en)
WO (2) WO2015040943A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016201858A (en) * 2015-04-07 2016-12-01 日産自動車株式会社 Manufacturing method of bus ring, and bus ring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6585395B2 (en) * 2015-06-18 2019-10-02 矢崎総業株式会社 FEEDING RING AND METHOD FOR MANUFACTURING FEEDING RING
JP2019068558A (en) * 2017-09-29 2019-04-25 日本電産株式会社 Motor, and manufacturing method of motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003324887A (en) * 2002-05-07 2003-11-14 Mitsubishi Electric Corp Rotary electric machine
JP2004080962A (en) * 2002-08-21 2004-03-11 Hitachi Cable Ltd Distribution component and manufacturing method thereof
JP2005176423A (en) * 2003-12-08 2005-06-30 Denso Corp Alternator for vehicle, and its manufacturing method
JP2009124927A (en) * 2007-11-19 2009-06-04 Asmo Co Ltd Bus bar device and brushless motor
JP2010057240A (en) * 2008-08-27 2010-03-11 Aisin Seiki Co Ltd Bus bar structure
JP2012135176A (en) * 2010-12-24 2012-07-12 Asmo Co Ltd Bus bar device, stator, brushless motor, and method of manufacturing bus bar device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003324887A (en) * 2002-05-07 2003-11-14 Mitsubishi Electric Corp Rotary electric machine
JP2004080962A (en) * 2002-08-21 2004-03-11 Hitachi Cable Ltd Distribution component and manufacturing method thereof
JP2005176423A (en) * 2003-12-08 2005-06-30 Denso Corp Alternator for vehicle, and its manufacturing method
JP2009124927A (en) * 2007-11-19 2009-06-04 Asmo Co Ltd Bus bar device and brushless motor
JP2010057240A (en) * 2008-08-27 2010-03-11 Aisin Seiki Co Ltd Bus bar structure
JP2012135176A (en) * 2010-12-24 2012-07-12 Asmo Co Ltd Bus bar device, stator, brushless motor, and method of manufacturing bus bar device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016201858A (en) * 2015-04-07 2016-12-01 日産自動車株式会社 Manufacturing method of bus ring, and bus ring

Also Published As

Publication number Publication date
WO2015040943A1 (en) 2015-03-26
JP6178422B2 (en) 2017-08-09
JPWO2015041243A1 (en) 2017-03-02

Similar Documents

Publication Publication Date Title
JP5333996B2 (en) Stator and rotating electric machine using the same
JP5991172B2 (en) Manufacturing method of electric motor
US11277047B2 (en) Busbar apparatus, motor, and method of manufacturing busbar apparatus
US20190386535A1 (en) Stator manufacturing method and motor
JP2008278555A (en) Power distribution component of rotary electric machine
JP6232449B2 (en) Rotating electric machine
JP2010110144A (en) Wiring component for motor coil
JP2019140821A (en) Manufacturing method of stator, stator and flexure processing device
JP2004056873A (en) Rotary electric machine
JP6178422B2 (en) Bus ring and power distribution member comprising the same
JP4493652B2 (en) Motor stator
JP6598923B1 (en) Motor stator and method of manufacturing the same
JP4913538B2 (en) Centralized power distribution parts
JP2019140823A (en) Manufacturing method of stator
JP2019134539A (en) Stator coil of rotary electric machine
JP2010183660A (en) Stator, brushless motor, method of manufacturing the stator, and method of manufacturing the brushless motor
JP5237767B2 (en) Commutator, armature and motor including the commutator, method for manufacturing the armature, and method for manufacturing the motor
JP6973055B2 (en) Conductor joining method
JP2008301597A (en) Armature and direct-current motor
JP3977138B2 (en) Rotating electric machine
JP2019140819A (en) Manufacturing method of stator
JP2019140822A (en) Flexure processing device
JP7205479B2 (en) Motor and motor manufacturing method
JP2015126616A (en) Bus ring and power distribution member with the same
JP4112292B2 (en) Stator and manufacturing method thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14845411

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015537940

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14845411

Country of ref document: EP

Kind code of ref document: A1