WO2019159579A1 - Moteur et dispositif moteur - Google Patents

Moteur et dispositif moteur Download PDF

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Publication number
WO2019159579A1
WO2019159579A1 PCT/JP2019/000827 JP2019000827W WO2019159579A1 WO 2019159579 A1 WO2019159579 A1 WO 2019159579A1 JP 2019000827 W JP2019000827 W JP 2019000827W WO 2019159579 A1 WO2019159579 A1 WO 2019159579A1
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WIPO (PCT)
Prior art keywords
winding
slot
windings
peripheral side
coil end
Prior art date
Application number
PCT/JP2019/000827
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English (en)
Japanese (ja)
Inventor
金澤　宏至
貴行 近岡
崚登 千石
省三 川崎
一農 田子
裕司 辻
大祐 郡
高野　靖
孝 石上
佐藤　英樹
Original Assignee
日立オートモティブシステムズ株式会社
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 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Priority to CN201980008480.7A priority Critical patent/CN111699613B/zh
Priority to JP2020500328A priority patent/JP7013560B2/ja
Publication of WO2019159579A1 publication Critical patent/WO2019159579A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings

Definitions

  • the present invention relates to a motor and a motor device.
  • Patent Document 1 discloses a motor having two windings.
  • first system windings and second system windings constituted by distributed windings are alternately arranged in the slots of the stator.
  • the motor is arranged in a distributed manner on the stator core and is independently connected to a plurality of inverters, and a plurality of independent system windings are provided in the slots of the stator core.
  • An in-slot insulating member disposed between the plurality of system windings, and the plurality of system windings are disposed on the inner peripheral side of the slots formed on the stator core and on the inner peripheral side.
  • the coil end portion of the system winding arranged on the outer peripheral side is a coil of the system winding arranged on the inner peripheral side. It arrange
  • a motor device includes a motor of the above aspect, a plurality of inverters individually connected to the plurality of system windings of the motor, and each of the plurality of system windings.
  • a switching unit provided and connected to a neutral point of the phase winding of the system winding to connect and disconnect the neutral points, and connected by the switching unit in response to a short circuit between different system windings And a control unit for controlling the separation.
  • a motor device includes a motor of the above aspect and a plurality of drives that are individually connected to the plurality of system windings of the motor and supply power to the plurality of system windings.
  • a plurality of inverters connected in parallel to the system winding.
  • FIG. 1 is a diagram showing an embodiment of a motor of the present invention.
  • FIG. 2 is a sectional view of the motor.
  • FIG. 3 is a perspective view of a stator in which two system windings are arranged.
  • FIG. 4 is a diagram for explaining the arrangement of the conductors in the slot.
  • FIG. 5 is a diagram schematically showing two winding coils arranged in the slot. 6 is an enlarged view of a part of the stator shown in FIG.
  • FIG. 7 is a diagram illustrating the shape of the coil end insulating member.
  • FIG. 8 is a diagram illustrating an example of an installation method of the coil end insulating member.
  • FIG. 9 is a view showing a modification of the coil end insulating member.
  • FIG. 1 is a diagram showing an embodiment of a motor of the present invention.
  • FIG. 2 is a sectional view of the motor.
  • FIG. 3 is a perspective view of a stator in which two system windings are arranged
  • FIG. 10 is a diagram in which the coil end insulating member of FIG. 9 is arranged in the coil end portion.
  • FIG. 11 is a diagram illustrating another example of the shape of the coil end portion.
  • FIG. 12 shows the shape of the in-slot insulating member.
  • FIG. 13 is a view showing another example of the in-slot insulating member.
  • FIG. 14 is a diagram illustrating a comparative example.
  • FIG. 15 is a diagram illustrating an example of the in-slot insulating member in the comparative example.
  • FIG. 16 is a diagram showing a coil connection circuit of the two-system winding shown in FIG.
  • FIG. 17 is a slot arrangement diagram in the case where the second system winding is arranged in a state shifted by one slot with respect to the first system winding.
  • FIG. 16 is a diagram showing a coil connection circuit of the two-system winding shown in FIG.
  • FIG. 17 is a slot arrangement diagram in the case where the second system winding is
  • FIG. 18 is a diagram showing a coil connection circuit in the case of the slot arrangement shown in FIG.
  • FIG. 19 is a diagram for explaining torque waveforms in the case of the configuration shown in FIGS.
  • FIG. 20 is a circuit block diagram illustrating an example of a drive device that drives a dual winding motor.
  • FIG. 21 is a diagram illustrating another example of a driving device that drives a dual winding motor.
  • FIG. 22 is a diagram showing still another example of a drive device that drives a dual winding motor.
  • FIG. 23 is a slot layout diagram in the case of three-system winding.
  • FIG. 24 shows the coil connection circuit of the first to third system windings shown in FIG.
  • FIG. 25 is a diagram for explaining the torque of the motor constituted by the first to third system windings shown in FIG.
  • FIG. 26 is a coil arrangement diagram in the case of four systems.
  • FIG. 27 is a coil arrangement diagram in the case of six systems.
  • FIG. 28 is a schematic diagram showing a coil arrangement in a case where four system windings are arranged concentrically around the entire circumference.
  • FIG. 29 is a schematic diagram showing a coil arrangement in the case where one circuit is divided into two and different system windings are arranged in each.
  • FIG. 30 is a diagram for explaining the torque of the motor constituted by the first to fourth system windings shown in FIG.
  • FIG. 31 is a diagram illustrating a case where the torque of the second system winding in FIG. 29 is stopped.
  • FIG. 32 is a diagram showing a coil arrangement when the two system windings shown in FIG.
  • FIG. 33 is a perspective view of a stator in which two windings of overlapping winding are arranged.
  • FIG. 34 is a view showing an example of the in-slot insulating member in the arrangement shown in FIG.
  • FIG. 35 is a perspective view of the steering device.
  • FIG. 36 is a flowchart for explaining the operation of the steering device.
  • FIG. 37 is a diagram illustrating a switching unit provided in the drive circuit.
  • FIG. 1 is a diagram showing an embodiment of a motor according to the present invention, and shows an external view of an auxiliary motor for a vehicle, for example, a motor 100 used for electric power steering.
  • a drive circuit (not shown) is disposed on the opposite side of the shaft 3.
  • the motor 100 includes a housing 1 and a bracket 2, and a shaft 3 that is an output shaft protrudes from the bracket 2.
  • a plurality of coil lead wires 50 extend from the opposite side of the housing 1 (that is, the side opposite to the bracket mounting side).
  • FIG. 2 is a sectional view of the motor 100.
  • An O-ring 6 is provided between the housing 1 and the bracket 2.
  • a front bearing 5 that supports one end side of the shaft 3 is fixed to the bracket 2 by a bevel-type thumber 4.
  • the housing 1 is provided with a rear bearing 10 that supports the other end of the shaft 3.
  • the shaft 3 is rotatably supported by these bearings 5 and 10.
  • the rotor 16 provided on the shaft 3 has an embedded structure in which the permanent magnet 7 is provided in the rotor core 8.
  • a stator core 9 is provided on the inner peripheral side of the housing 1, and electrically independent three-phase first system windings 20 and second system windings 21 are arranged in the slots of the stator core 9.
  • the first system winding 20 is arranged on the inner peripheral side of the slot
  • the second system winding 21 is arranged on the outer peripheral side of the first system winding 20.
  • a cylindrical coil end insulating member between the coil end portion of the first system winding 20 on the inner peripheral side and the coil end portion of the second system winding 21 on the outer peripheral side for the purpose of preventing a short circuit between the systems. 11 is provided.
  • the coil end insulating member 11 is provided at both coil end portions on the output shaft side (bracket 2 side) and the non-output side (coil lead wire 50 side).
  • the plurality of coil lead wires 50 are drawn out to the coil end portion side on the opposite side to the output side, and project from the housing 1 to the control circuit side on the right side in the figure.
  • FIG. 3 is a perspective view of the stator in which the first system winding 20 and the second system winding 21 are arranged.
  • a plurality of coil lead wires 50 (50a, 50b) are led out from the coil end portion arranged on the upper side in the axial direction of the stator core 9.
  • a cylindrical coil end insulating member 11 is disposed between the coil end portion of the first system winding 20 and the coil end portion of the second system winding 21 disposed on the upper side in the axial direction of the stator core 9. .
  • a coil end insulating member 11 is disposed on the opposite side (that is, the lower side in the axial direction) of the stator core 9.
  • a segment coil connecting portion 17 constituting a winding is provided on the opposite side of the stator core 9.
  • Twelve coil lead wires 50 are provided, six coil lead wires 50a related to the UVW input wires and neutral wires of the first system winding 20, and the UVW input wires and neutral wires of the second system winding 21. 6 coil lead wires 50b. Further, the connecting wire 18a of the first system winding 20 and the connecting wire 18b of the second system winding 21 are arranged on the coil end portion side from which the coil lead wire 50 is drawn.
  • Each of the first system winding 20 and the second system winding 21 shown in FIG. 3 is a distributed winding three-phase winding in which a plurality of segment coils are connected by wave winding.
  • the first and second system windings 20 and 21 having a wave winding structure are formed by a circular coil formed by connecting a plurality of segment coils in series.
  • Each segment coil is inserted into the slot from the upper side in the axial direction of the stator core 9, and the end of the inserted segment coil protrudes from the opposite side (the lower side in the axial direction) of the slot.
  • the ends of the segment coils protruding from the opposite side (the lower side in the axial direction) of the slot are connected by soldering, Tig welding, laser welding, or the like to form a connecting portion 17.
  • FIG. 4 is a diagram for explaining the arrangement of the conductors in the slot.
  • the conductor portion arranged in the slot in the system winding is referred to as an in-slot conductor.
  • FIG. 4 shows the arrangement of conductors in the slot in the case of 10 poles and 60 slots. In one slot, four in-slot conductors are inserted from the inner peripheral side to the outer peripheral side.
  • the upper diagram shows slot numbers 1 to 24, the middle diagram shows slot numbers 25 to 48, and the lower diagram shows slot numbers 49 to 60.
  • the numbers shown in the lower part of each figure indicate the slot numbers.
  • the upper side in the figure is the outer peripheral side of the slot, and the lower side in the figure is the inner peripheral side.
  • the slot four in-slot conductors are arranged.
  • the positions of the in-slot conductors in the slot are referred to as layer 1, layer 2, layer 3, and layer 4 from the inner periphery side.
  • Each of the first system winding 20 and the second system winding 21 has a configuration in which four circulation coils formed by connecting a plurality of segment coils in the circumferential direction of the stator core 9 are connected in series.
  • the first circulating coil having the coil lead wire 50a on the input side (the circulating coil indicated by reference numeral 1U14 in FIG. 16 described later) is Ten in-slot conductors indicated by reference numerals 1U14, 1u12, 1U24, 1u22, 1U34, 1u32, 1U44, 1u42, 1U54, and 1u52 in FIG. 4 are sequentially connected, and are drawn out of the slot 1U14.
  • the winding constitutes the coil lead wire 50a.
  • the numbers in parentheses shown in FIG. 4 indicate the connection order.
  • a second circular coil (circular coil indicated by reference numeral 1U13 in FIG. 16 described later) connected to the circular coil 1U14 is indicated by reference numerals 1U13, 1u11, 1U23, 1u21, 1U33, 1u31, 1U43, 1u41, 1U53, 1u51.
  • In-slot conductors are connected in order, and the in-slot conductor 1U13 is connected to the in-slot conductor 1u52 of the coil 1U14.
  • a third coil (circular coil indicated by reference numeral 1U11 in FIG. 16 described later) connected to the circular coil 1U13 is indicated by reference numerals 1U11, 1u53, 1U51, 1u43, 1U41, 1u33, 1U31, 1u23, 1U21, 1u13.
  • the in-slot conductors 1U11 are connected to the in-slot conductor 1u51 of the coil 1U13.
  • a fourth coil connected to the coil 1U11 (circular coil indicated by reference numeral 1U12 in FIG. 16 described later) is indicated by reference numerals 1U12, 1u54, 1U52, 1u44, 1U42, 1u34, 1U32, 1u24, 1U22, 1u14.
  • In-slot conductors are sequentially connected, and the in-slot conductor 1U12 is connected to the in-slot conductor 1u13 of the coil 1U11.
  • the symbols U and u in the U-phase winding are replaced with the symbols V and v in the case of the V phase, and the symbols W and U in the case of the W phase. Replaced with w.
  • the second system winding 21 has the same configuration. In the configuration shown in FIG. 4, the U-phase of the first system winding 20 and the U-phase of the second system winding 21 have the in-slot conductors arranged at the same slot number. There is no electrical phase difference between the phase and the U phase of the second system winding 21. The same applies to the V phase and the W phase.
  • the first system winding 20 is disposed on the inner peripheral layer 1 and layer 2, and the second system winding 21 is disposed on the outer peripheral layer 3 and layer 4. Therefore, the coil end portion of the first system winding 20 and the coil end portion of the second system winding 21 are separated into an inner peripheral side and an outer peripheral side, and a cylindrical coil end (see FIG. 3) is formed in the gap therebetween.
  • An insulating member 11 can be disposed. That is, it can be set as the structure which prevents the contact with the 1st system
  • FIG. 5 is a diagram schematically showing the circular coils 1U14 and 1U13 arranged in the slot.
  • the number enclosed in a round frame indicates the slot number.
  • the segment coil of the circular coil 1U14 denoted by reference character SC is inserted into the slot with slot number 8 and the slot with slot number 14 from the upper side in the figure.
  • the conductor portions protruding to the opposite side of the slot are bent in the direction of the adjacent segment coil, and the bent conductor connecting portions 17 are connected to the adjacent segment coil connecting portions 17, respectively.
  • those arranged in the layer 1 are indicated by solid lines
  • those arranged in the layer 2 are indicated by broken lines.
  • the segment coil SC includes two in-slot conductors 1u12 and 1U24.
  • the in-slot conductor 1u12 is arranged in the layer 1 of the slot of slot number 8
  • the in-slot conductor 1U24 is arranged in the layer 2 of the slot of slot number 14. Has been.
  • Circulating coil 1U14 is wound in a wave winding so as to circulate in the direction from slot number 2 to slot number 56, and circulating coil 1U13 is wound in a wave winding so as to circulate in the direction from slot number 1 to slot number 55.
  • the 20 in-slot conductors 1U14 to 1u51 of the winding coils 1U14 and 1U13 are alternately arranged in the layer 2 and the layer 1.
  • the first in-slot conductor 1U11 of the third winding coil 1U11 is arranged in the layer 1 of slot number 1, and the connecting wire 18a connects the in-slot conductor 1u51 of the winding coil 1U13 and the in-slot conductor 1U11 of the winding coil 1U11.
  • the ten in-slot conductors 1U11 to 1u13 of the circular coil 1U11 are alternately arranged in the layers 1 and 2, and the circular coil 1U11 is wound so as to circulate in the opposite direction to the circular coils 1U14 and 1U13.
  • the fourth coil 1U12 is also wound so as to circulate in the opposite direction, similar to the coil 1U11.
  • each of the U-phase, V-phase, and W-phase windings of the first system winding 20 and the second system winding 21 has two connection coils connected in series. It is the structure connected by 18a, 18b.
  • n system windings formed by separating four series of winding coils arranged on the inner peripheral side of the slot into n pieces, and four series of winding coils arranged on the outer peripheral side of the slot are represented by m.
  • the number of systems can be increased by using m system windings formed separately.
  • n and m are integers of 2 to 4.
  • the first winding 20 and the first winding can be newly made into two systems. That is, with the configuration of the in-slot conductor shown in FIG. Furthermore, if the connecting part of the two series winding coils is disconnected, it is possible to obtain a maximum of eight windings.
  • the in-slot conductors of the first system winding 20 are arranged on the layers 1 and 2 on the inner peripheral side of the slot, and the in-slot conductors of the second system winding 21 are arranged on the layer 3 on the outer peripheral side of the slot.
  • different system windings 20, 21 can be arranged separately on the inner peripheral side and the outer peripheral side of the stator core 9.
  • the coil end portion of the first system winding 20 and the coil end portion of the second system winding 21 can be arranged separately on the inner peripheral side and the outer peripheral side through a gap.
  • FIG. 6 is an enlarged view of a part of the stator shown in FIG.
  • a slot 9b into which the in-slot conductor of the segment coil is inserted is formed between the teeth 9a of the stator core 9 and the adjacent teeth 9a.
  • the two in-slot conductors on the inner peripheral side of each slot 9 b are the in-slot conductors of the segment coil constituting the first system winding 20.
  • the two in-slot conductors on the outer peripheral side of each slot 9 b are the in-slot conductors of the segment coil constituting the second system winding 21.
  • an in-slot insulating member 15 is provided in order to improve insulation between the inserted in-slot conductor and the stator core 9.
  • the in-slot insulating member 15 also functions as a member for improving insulation between the in-slot conductor of the first system winding 20 and the in-slot conductor of the second system winding 21.
  • the first system winding 20 and the second system winding 21 are provided at the coil end portions of the first system winding 20 and the second system winding 21 that protrude from both axial ends of the stator core 9.
  • a coil end insulating member 11 (see also FIG. 2) is provided so that they do not contact with each other mechanically or electrically.
  • the coil lead wire 50 a of the first system winding 20 is drawn from the inner peripheral side of the coil end insulating member 11, and the coil lead wire 50 b of the second system winding 21 is drawn from the outer peripheral side of the coil end insulating member 11.
  • a coil lead wire 50a and a coil lead wire as shown in FIG. 50b is designed to be taken out from the left and right opposite sides.
  • the connecting wire 18 a of the first system winding 20 is located on the inner peripheral side of the coil end insulating member 11, and the connecting wire 18 b of the second system winding 21 is located on the outer peripheral side of the coil end insulating member 11. ing.
  • the crossover line 18a connects the conductors in the slots of the layer 1 to each other, and the crossover line 18b connects the conductors in the slots of the layer 3 to each other.
  • FIG. 7A and 7B are diagrams for explaining the shape of the coil end insulating member 11.
  • FIG. 7A is a plan view
  • FIG. 7B is a cross-sectional view taken along the line AA
  • the coil end insulating member 11 includes a cylindrical portion 110 on the inner peripheral side and a folded portion 111 formed on the lower end portion of the cylindrical portion 110 (that is, the end portion on the stator core side).
  • the folded portion 111 is folded in a V shape, but may be folded in a substantially circular shape as shown in FIG. 7 (c).
  • the radial dimension L1 of the folded portion 111 is preferably set to be larger than the radial gap dimension of the first system winding 20 and the second system winding 21.
  • the coil end insulating member 11 is made of, for example, insulating paper.
  • the folded portion 111 is formed by folding one long side of the strip-shaped insulating paper. Thereafter, the strip-shaped insulating paper on which the folded portion 111 is formed is rounded into a cylindrical shape so that the insulating paper end 114 is abutted as shown in FIG.
  • FIG. 8 is a diagram illustrating an example of a method of installing the coil end insulating member 11 in the gap between the first and second system windings 20 and 21.
  • a thin plate-like jig 170 as shown in FIG. 11 is pushed into the gap.
  • the folded portion 111 is deformed to the inner peripheral side as indicated by an arrow, and the folded portion 111 is in contact with the inner peripheral side of the second system winding 21 as shown in FIG.
  • the folded portion 111 has a shape as shown in FIG. 7C, the cross-sectional shape is deformed so as to be crushed in a radial direction from a substantially circular shape, and comes into contact with the inner peripheral side of the second system winding 21. It becomes a state.
  • the folded portion 111 comes into contact with and catches on the inner peripheral side of the second system winding 21, and the coil end insulating member 11 becomes the first. It becomes difficult to come off from the gap between the system winding 20 and the second system winding 21. Further, the coil end insulating member 11 can be easily inserted into the gap between the first system winding 20 and the second system winding 21 by pushing in with the jig 170 as shown in FIG. Can be inserted.
  • the coil end insulating member 11 between the coil end portion of the first system winding 20 and the coil end portion of the second system winding 21 separated on the inner peripheral side and the outer peripheral side. Further, it is possible to completely prevent the contact of different system windings in the coil end portion, and to further improve the insulation performance between the system windings in the coil end portion.
  • FIGS. 9 and 10 are views showing a modification of the coil end insulating member arranged in the coil end portion on the coil lead-out line drawing side.
  • the coil end insulating member on the coil lead-out line drawing side is represented by reference numeral 11R.
  • 9A and 9B are diagrams showing the shape of the coil end insulating member 11R, where FIG. 9A is a plan view and FIG. 9B is a cross-sectional view along BB.
  • FIG. 10 is a diagram in which the coil end insulating member 11R is arranged in the coil end portion on the coil lead-out line drawing side. As shown in FIG.
  • the coil end insulating member 11R has a plurality of flanges at the upper end of the cylindrical portion 110, that is, at the end opposite to the folded portion 111 of the cylindrical portion 110. Parts 115a and 115b.
  • the flange portion 115a is bent toward the inner peripheral side, and the flange portion 115b is bent toward the outer peripheral side.
  • the coil end insulating member 11 ⁇ / b> R is inserted from the folded portion 111 into the gap between the first system winding 20 and the second system winding 21 as in the case of the coil end insulating member 11.
  • the flange portion 115a bent to the inner peripheral side is arranged below the connecting wire 18a of the first system winding 20 disposed on the inner peripheral side (that is, the coil end portion of the connecting wire 18a and the first system winding 20). Insert it into the gap.
  • the flange portion 115b bent to the outer peripheral side is below the connecting wire 18b of the second system winding 21 disposed on the outer peripheral side (that is, a gap between the connecting wire 18b and the coil end portion of the second system winding 21). Insert into.
  • the winding-turning shape of the first system winding 20 in the coil end portion and the winding-turning shape of the second system winding 21 are the same form. It was shown to.
  • the winding-turning shape of the first system winding 20 and the winding-turning shape of the second system winding 21 are positions of the coil end insulating member 11R (between system windings).
  • the winding shape of the first system winding 20 may be changed so as to have a symmetrical shape with respect to the first winding 20.
  • the in-slot conductor 2U14 arranged in the layer 4 of the slot number 2 of the second winding 21 on the outer peripheral side is arranged in the layer 3 of the slot number 8 in the replaced arrangement diagram. It is connected to the in-slot conductor 2 u 12, while the in-slot conductor 1 U 14 of the layer 1 of slot number 2 of the first winding 20 on the inner peripheral side is connected to the in-slot conductor 1 u 12 of layer 2 of slot number 8.
  • the winding arrangement shape connecting the conductors in the slot becomes symmetrical with respect to the coil end insulating members 11 and 11R, and the coil end insulating members 11 and 11R can be easily inserted into the gaps of the coil end portions.
  • FIG. 12 is a diagram for explaining the insulation in the slot 9b, and is a schematic diagram in the case where the slot 9b is sectioned perpendicularly to the slot core axis direction.
  • the slot number 1 in FIG. 4 is illustrated.
  • Two in-slot conductors of the first system winding 20 are arranged on the inner peripheral side of the slot 9b, and two in-slot conductors of the second system winding 21 are arranged on the outer peripheral side of the slot 9b. .
  • the in-slot insulating member 15 is formed so as to surround the two in-slot conductors 1U11 and 1U13 of the first system winding 20 and the two in-slot conductors 2U11 and 2U13 of the second system winding 21, respectively. 9b.
  • insulating paper obtained by bending the insulating paper into the shape of FIG. 12 is used.
  • both ends of the in-slot insulating member 15 are inserted between the in-slot conductor 1U13 of the first system winding 20 and the in-slot conductor 2U11 of the second system winding 21, and the in-slot insulating member 15 is inserted.
  • this insertion portion is referred to as an insulating member insertion portion 15a. That is, in the configuration of FIG. 12, two insulating member insertion portions 15 a are arranged between the first system winding 20 and the second system winding 21.
  • only one of the upper and lower insulating member insertion portions 15a may be provided, but the insulation between the systems in the slot 9b can be further improved by arranging the insulating member insertion portions 15a in double. Can be planned.
  • the thickness dimension of the coil end insulating members 11 and 11R disposed between the systems of the coil end portion is Tz2
  • the thickness dimension of the in-slot insulating member 15 disposed in the slot 9b is Tz1
  • the thickness dimension 2Tz1 of the portion of the in-slot insulating member 15 between the system windings 20 and 21 and the total thickness dimension 2Tz2 of the portion where the folded portion 111 of the coil end insulating members 11 and 11R is provided are 2Tz1 ⁇ 2Tz2.
  • an insulating member insertion portion 15a on the system winding 20 side and an insulating member insertion portion 15a on the system winding 21 side are provided between the system windings 20 and 21, so that the insulating members are in two layers.
  • the insulating member insertion portion 15a is provided only on one side (not shown)
  • conductors in the slots of different system windings in the slot 9b The distance between them can be made wider.
  • FIG. 13 is a view showing another example of the in-slot insulating member 15.
  • the folded back 150 is formed in the insulating member insertion portion 15a and the number of layers of the insulating member in the insulating member insertion portion 15a is two.
  • four (four layers) insulating members are arranged.
  • FIG. 14 is a diagram showing a comparative example, and shows a case where the conductors in the slots of the same system winding are arranged in all layers from the layer 1 to the layer 4 of the slot as in the prior art.
  • the slot number 1 has the in-slot conductors 1U11, 1U12, 1U13, 1U14 of the first system winding 20, and the slot number 2 has the in-slot conductors 2U11, 2U12, 2U13 of the second system winding 21. 2U14 is arranged.
  • FIG. 15 is a diagram showing an example of the in-slot insulating member 25 in the comparative example.
  • the slot 9b of slot number 1 is illustrated.
  • in-slot conductors of the same system winding are arranged in the slot 9b, and in-slot conductors 1U11, 1U12, 1U13, 1U14 of the first system winding 20 are arranged in the slot number 1. Yes. Therefore, an insulating paper that integrally surrounds the four in-slot conductors 1U11 to 1U14 as shown in FIG. 15 is used for the in-slot insulating member 25 disposed in the slot 9b.
  • the in-slot conductors of the same system winding are arranged in the slots, so there is no need to consider the insulation between the systems with respect to the in-slot conductors.
  • FIG. 15 it was possible to obtain a shape considering only the insulation between the conductor in the slot and the stator core 9.
  • the first system winding and the second system winding cannot be arranged separately on the inner peripheral side and the outer peripheral side as in the present embodiment, so that the insulation by the insulating member is difficult. Met. Therefore, the first system winding 20 and the second system winding 21 are likely to come into contact with each other at the coil end portion, and there is a possibility that a short circuit may occur when the coils of different systems are rubbed due to vibration or the like.
  • FIG. 16 is a diagram showing a coil connection circuit of the two-system winding shown in FIG.
  • the in-slot conductors 1U11, 1U13 at the beginning of winding (that is, the input side) are arranged in the slot number 1.
  • the in-slot conductors 1U12 and 1U14 at the beginning of winding of the winding coils 1U12 and 1U14 are arranged at slot number 2, and in the case of 10 poles and 60 slots, the electrical angle 360 degrees for 2 poles corresponds to 6 slots.
  • the electrical angle for one slot is 30 degrees. Therefore, with slot number 1 as a reference, the phase of the U-phase coil (U1 phase in FIG. 16) is 15 degrees in electrical angle as shown in FIG.
  • the first system winding is shown as a winding diagram.
  • the phase shift is 15 degrees, which is the same as 20 U phases.
  • Other phases other than the U phase are electrically 120 degrees out of phase, and detailed description thereof is omitted.
  • FIG. 17 shows a slot arrangement diagram in the case where the second system winding 21 is arranged with one slot shifted from the first system winding 20.
  • the in-slot conductors 1U11 and 1U13 of the circulating coils 1U11 and 1U13 are disposed in the layers 1 and 2 of the slot number 1
  • the slots of the circulating coils 1U12 and 1U14 are disposed in the layers 1 and 2 of the slot number 2.
  • Inner conductors 1U12 and 1U14 are arranged.
  • the in-slot conductors 2U11 and 2U13 of the circulation coils 2U11 and 2U13 are arranged in the layers 3 and 4 of the slot number 2, and the circulation coils 2U12 and 2U14 are arranged in the layers 3 and 4 of the slot number 3.
  • In-slot conductors 2U12 and 2U14 are arranged.
  • FIG. 18 is a diagram showing a coil connection circuit in the case of the slot arrangement shown in FIG.
  • the first system winding 20 is the same as that shown in FIG. 16, but the second system winding 21 is shifted by one slot with respect to the first system winding 20 as shown in FIG. 17.
  • an electrical phase difference of 30 degrees is provided.
  • Other phases other than the U phase are electrically shifted by 120 degrees, and detailed description thereof is omitted.
  • FIG. 19 shows torque waveforms (first system torque) when current is supplied to each of the first and second system windings 20 and 21 configured as shown in FIGS.
  • FIG. 6 is a diagram showing T1, a second system torque T2), and a waveform of a combined torque Tout obtained by superimposing the torque T1 and the torque T2. Since the torque ripple of the three-phase motor is a sixth-order component of the fundamental wave, the torque ripple period is 60 degrees in electrical angle.
  • the second system winding 21 Since the second system winding 21 has a phase difference of 30 degrees in electrical angle with respect to the first system winding 20 (see FIG. 18), the second system winding with respect to the torque T1 generated by the first system winding 20
  • the torque T2 generated by the line 21 is electrically 30 degrees out of phase.
  • FIG. 20 is a circuit block diagram illustrating an example of a driving device that drives a motor having two windings.
  • the structure (For example, the structure shown in FIG. 17, 18) which provided the phase difference which can make a torque ripple small between the 1st system winding 20 and the 2nd system winding 21 is demonstrated to an example.
  • a drive circuit 40 is connected to the first system winding 20, and a drive circuit 41 is connected to the second system winding 21 configured with a phase difference of 30 degrees in electrical angle with respect to the first system winding 20. Connected.
  • the drive circuit 40 includes an inverter 61 and a control ECU (Electronic Control Unit) 81 that generates a gate signal 71 of the inverter 61.
  • the drive circuit 41 includes an inverter 64 and an ECU 82 that generates a gate signal 74 of the inverter 64.
  • the drive circuits 40 and 41 have phase current detectors CtU1 to CtW2 so that the current of each phase can be fed back, and two systems can be obtained by measuring the current actually flowing in response to the current command. The imbalance between them is corrected. Since the drive circuits 40 and 41 are energized basically with a phase difference of 30 degrees as described above, the torque ripple is minimized.
  • the torque ripple is adjusted by adjusting the current phase of the second winding. Can be minimized.
  • the battery Bat1 is connected to the drive circuit 40, and the battery Bat2 is connected to the drive circuit 41. Furthermore, the generator 42 for charging the batteries Bat1 and Bat2 has independent system terminals. That is, the drive circuits 40 and 41 are configured to be able to supply power independently to the system windings 20 and 21. In FIG. 20, the generator 42 is configured to supply a power generation voltage independent from one housing, but two generators may be provided so that two systems can be completely separated.
  • a communication means 43 is provided between the drive circuit 40 and the drive circuit 41, and the drive circuits 40 and 41 can grasp each other's situation with the communication means 43.
  • the drive circuits 40 and 41 can operate so as to assist the decrease in motor drive on the trouble side when an abnormality occurs.
  • FIG. 21 is a diagram showing another example of a driving apparatus for driving a dual winding motor, and shows a circuit configuration in the case where a means capable of boosting the motor output is incorporated.
  • the difference from the configuration shown in FIG. 20 is that the two independent batteries Bat1 and Bat2 are unified into one battery Bat1, and that the power generation command voltage Vref can be output from the drive circuit 40 to the generator 42. ing.
  • the generator 42 generates electricity at a voltage slightly higher than the nominal voltage of the battery Bat1 used. For example, for a 12V battery, the generator generates electricity at about 14V.
  • the power generation voltage command Vref of the generator 42 is increased before the mode is generated, and the battery voltage is charged to be higher. By increasing the voltage that can be used by the motor in this way, power can be increased in a short time.
  • FIG. 21 it was set as the structure which charges electric power only with battery Bat1, However Since charging with battery Bat1 takes time in order to raise a charging voltage, by connecting a capacitor and a capacitor in parallel and once separating from a battery, A configuration in which the voltage is increased in a short time may be employed.
  • FIG. 22 is a diagram showing still another example of a drive device for driving a dual winding motor.
  • the motor is composed of two winding structures composed of a first system winding 20 and a second system winding 21 having a phase difference in electrical angle.
  • the drive circuit 40 connected to the first system winding 20 includes three inverters 61 to 63 connected in parallel to the first system winding 20, and an ECU 81 that generates gate signals 71 to 73 of the inverters 61 to 63. Is provided.
  • the drive circuit 41 connected to the second system winding 21 includes three inverters 64, 65, 66 connected in parallel to the second system winding 21 and gate signals 74 to 66 of the inverters 64 to 66.
  • An ECU 82 for generating 76 is provided.
  • the ECUs 81 and 82 individually output gate signals to a plurality of inverters.
  • a communication unit 43 is provided between the drive circuit 40 and the drive circuit 41.
  • FIG. 23 is a slot layout diagram in the case of a three-system winding.
  • the torque ripple of the three-phase motor is the sixth-order component of the fundamental wave, one cycle is 60 degrees in electrical angle.
  • the phase difference for canceling the torque ripple is 20 degrees in electrical angle.
  • the electrical angle 360 degrees for two poles is 18 slots, so the number of slots in the case of a 10 pole motor is 90 slots. In addition, since there are three windings, the number of layers in the slot is six.
  • the in-slot conductors of the first system winding 20 are arranged in the layers 1 and 2, and the in-slot conductors of the second system winding 21 are arranged in the layers 3 and 4.
  • the 22 in-slot conductors are arranged in layers 5 and 6.
  • the 1U + phase of the first system winding 20 is arranged in the layers 1 and 2 of the slot numbers 1, 2 and 3
  • the 2U + phase of the second system winding 21 is the layers 3 and 4 of the slot numbers 2, 3 and 4
  • the 3U + phase of the third system winding 22 is arranged in the layers 5 and 6 of the slot numbers 3 and 4 and 5. That is, with respect to the first system winding 20, the second system winding 21 is shifted to the right by one slot, and the third system winding 22 is shifted to the right by two slots.
  • FIG. 24 is a diagram showing a coil connection circuit of the first to third system windings 20 to 22 shown in FIG.
  • Six winding coils 1U11 to 1U16 are connected in series to the 1U phase of the first system winding 20.
  • the circular coils 1U12 and 1U15 are electrically displaced by 20 degrees with respect to the circular coils 1U11 and 1U14, and the circular coils 1U13 and 1U16 are displaced by 40 degrees.
  • the average electrical angle is 20 degrees with reference to slot number 1.
  • the result is an electrical addition of 20 degrees to the first system winding 20, so the U2-phase winding has an electrical phase of 40 degrees.
  • the U3-phase winding has a phase difference of 60 degrees.
  • Other phases other than the U phase are electrically shifted by 120 degrees, and detailed description thereof is omitted.
  • FIG. 25 shows the torque generated by each phase winding of the motor constituted by the first to third system windings 20 to 22 shown in FIG. 24 (the first system torque T1, the second system torque T2, It is a figure which shows the waveform of the composite torque Tout which is the torque T3 of 3 systems
  • the torque ripple of the combined torque Tout can be reduced. Since the torque ripple of the combined torque increases when the torque balance of the three systems breaks down, reducing the torque ripple in each system as a winding system across multiple slots as in this embodiment is effective in reducing torque ripple. is there.
  • an electrical angle is 30 degrees (see FIG. 19)
  • a torque ripple is generated with a phase difference of an electrical angle of 20 degrees (see FIG. 25). It is important to consider the phase as it can be minimized.
  • a value obtained by dividing the value by the number of systems is an appropriate phase difference. That is, 15 degrees in the case of 4 systems, 12 degrees in the case of 5 systems, and 10 degrees in the case of 6 systems. By setting the phase difference in this way, torque ripple can be minimized.
  • the same phase difference (electrical angle 30 degrees) as in the case of 2 systems can be obtained by arranging as shown in FIG.
  • the same phase difference (electrical angle 20 degrees) as in the case of 3 systems can be obtained by arranging as shown in FIG.
  • FIGS. 4, 17, 23, 26 and 27 a plurality of system windings are arranged sequentially from the inner peripheral side of the stator core 9 toward the outer peripheral side.
  • FIG. 28 schematically shows the coil arrangement in the case of four-system winding.
  • the first system winding 20, the second system winding 21, the third system winding 22 and the fourth system winding 23 are provided over the entire circumference of the stator core 9, and a gap between adjacent system windings
  • a cylindrical coil end insulating member 11 is disposed on the surface.
  • one round may be divided into two and different system windings may be arranged for each.
  • the example shown in FIG. 29 is a case of four system windings, and the first system winding 20 and the second system winding 21 are arranged separately on the inner circumference side, and the third system winding 22 is arranged on the outer circumference side.
  • the fourth system winding 23 is arranged separately on the left and right.
  • the number of layers of radial windings can be reduced.
  • the number of layers can be reduced to two.
  • the torque imbalance generated in the first system winding 20 and the second system winding 21 is shifted by shifting the inner peripheral side switching portion and the outer peripheral side switching portion to the third system winding. It is possible to alleviate the torque imbalance generated in the wire 22 and the fourth system winding 23.
  • FIG. 30 shows the torque T12 generated by the first system winding 20 and the second system winding 21, and the third system in the motor constituted by the first to fourth system windings 20 to 23 shown in FIG. It is a figure which shows the waveform of the synthetic torque Tout which is the torque T34 which generate
  • the torque T12 in FIG. 30 is the torque T1 of only the first system winding as shown by the solid line in FIG.
  • the period of the waveform of the torque T1 is the same as that of the torque T12, but the amplitude and the average value level are reduced to half of the torque T12. Therefore, the torque T34 generated by the third system winding 22 and the fourth system winding 23 is the same as that in FIG. 29, but the combined torque changes as Tout1 and is more torque ripple than the combined torque Tout in FIG. Becomes larger.
  • the plurality of system windings are separated from each other and the insulating member is disposed in the separated gap.
  • a part of the plurality of system windings is separated and the insulating member is disposed in the gap. You may do it.
  • the four system windings shown in FIG. 14 are arranged on the inner peripheral side and the outer peripheral side to form four system windings, the four system windings configured as shown in FIG. It becomes.
  • the in-slot conductors of the first system winding 20 and the in-slot conductors of the second system winding 21 are shifted by one slot. ing.
  • the in-slot conductor of the third system winding 22 and the in-slot conductor of the fourth system winding 23 are arranged so as to be shifted by one slot.
  • the windings arranged in the stator core include an inner peripheral side where the first system winding 20 and the second system winding 21 are arranged, a third system winding 22 and a fourth system winding 23. It is separated from the outer peripheral side to be arranged.
  • the coil end insulating members 11 and 11R can be disposed between the separated system gaps. As a result, by disposing the coil end insulating members 11 and 11R, the insulation performance between the first and second system windings 20 and 21 and the third and fourth system windings 22 and 23 can be improved.
  • the layout of the conductor in the slot shown in FIG. 14 is shown for the conventional two-system winding of wave winding, but the arrangement of the conductor in the slot is also shown in FIG. It will be the same as that.
  • the shapes of the coil end portions of the first system winding 20 and the second system winding 21 are as shown in FIG. 33, and the coil end portion of the first system winding 20 and the second system winding
  • the coil end portions 21 are alternately arranged in the circumferential direction.
  • the two system windings shown in FIGS. 14 and 33 are arranged on the inner peripheral side and the outer peripheral side to form four system windings. It is possible to arrange the two windings on the side separately.
  • FIG. 34 is a diagram showing an example of the in-slot insulating member 15 in the arrangement shown in FIG.
  • the inner conductors 1U11 to 1U14 of the first system winding 20 on the inner peripheral side are integrally surrounded and the inner conductors 3U11 to 3U14 of the third system winding 22 on the outer peripheral side are surrounded.
  • An in-slot insulating member 15 is provided so as to integrally surround the periphery.
  • the slot 9b of slot number 2 integrally surrounds the periphery of the inner conductors 2U11 to 2U14 of the second system winding 21 on the inner peripheral side, and the inner conductor 4U11 of the fourth system winding 23 on the outer peripheral side.
  • An in-slot insulating member 15 is provided so as to integrally surround 4U14. Between the in-slot conductor 1U14 and the in-slot conductor 3U11 of different systems, and between the in-slot conductor 2U14 and the in-slot conductor 4U11, two insulating member insertion portions 15a of the in-slot insulating member 15 are arranged.
  • the arrangement of the in-slot insulating member 15 in FIG. 34 is the same as that in FIG. 12, but in the case of FIG. 12, there are two conductors in the slot that are integrally enclosed, and in the case of FIG. It has become. Between the in-slot conductor 1U14 and the in-slot conductor 3U11 of different systems, two insulating member insertion portions 15a of the in-slot insulating member 15 are arranged. Note that the in-slot insulating member 15 shown in FIG. 13 may be similarly applied.
  • FIG. 35 is a perspective view of a steering device 200 using the motor 100 (see FIGS. 1 and 2) of the present embodiment.
  • a pinion (not shown) is provided at the lower end of the steering shaft 202 connected to the steering wheel 201, and this pinion meshes with a rack (not shown) that is long in the left-right direction of the vehicle body.
  • Tie rods 203 for steering the front wheels in the left-right direction are connected to both ends of the rack, and the rack is covered with a rack housing 204.
  • a rubber boot 205 is provided between the rack housing 204 and the tie rod 203.
  • An electric power steering device 206 is provided to assist the torque when the steering wheel 201 is rotated. That is, a sensor 207 that detects the rotation direction and torque of the steering shaft 202 is provided, and a motor 100 that applies a steering assist force to the rack via the gear 210 based on the detection value of the sensor 207, and the motor 100 And a control ECU 209 for controlling the control.
  • control ECU 209 detects the steering start from the rate of change of the steering angle detected by the sensor 207, and controls to use the motor output of the inner peripheral system as a steering assist force at the start of steering. can do.
  • FIG. 36 is an example of a flowchart for explaining the operation of the steering device 200.
  • the control ECU 209 detects the steering start from the rate of change of the steering angle detected by the sensor 207 (S301), the control ECU 209 sets to use the motor output of the inner peripheral system as the steering assisting force at the start of steering (S302). ).
  • the inner peripheral side system is, for example, the first system winding 20. This utilizes the characteristic that the inner circumference side system has a lower electrical time constant and better responsiveness, and normal control is performed after an arbitrary time has elapsed since the start of steering.
  • the control ECU 209 sets to use the motor output of the outer peripheral system as the steering assist force at the start of steering. (S303).
  • This outer peripheral side system is, for example, the second system winding 21.
  • the response of applying the steering assist force immediately after the start of steering is improved, and the steering performance can be improved.
  • the above is particularly suitable for sudden steering or high speed driving.
  • the motor is arranged in a distributed manner on the stator core 9, and is connected to a plurality of independent system windings 20, 21 individually connected to a plurality of inverters, and a slot 9 b of the stator core 9.
  • an in-slot insulating member 15 disposed between the different system windings 20 and 21, and the plurality of system windings 20 and 21 are disposed on the inner peripheral side of the slot 9 b formed in the stator core 9.
  • the first system winding 20 and the second system winding 21 disposed on the outer peripheral side of the slot 9b relative to the first system winding 20 disposed on the inner peripheral side.
  • both the first system winding 20 and the coil end portion are arranged in the slot and the coil end portion.
  • the second system winding 21 can be arranged separately.
  • the in-slot insulating member 15 is disposed between the system windings 20 and 21 in the slot, the system windings 20 and 21 are separated by the thickness of the in-slot insulating member 15 and the system ends at the coil end portion.
  • a gap can be formed between the windings 20 and 21. As a result, the insulation performance between the system windings 20 and 21 at the coil end portion can be improved.
  • the in-slot insulating member 15 is formed of insulating paper, and the folded-back 150 is formed in the insulating member insertion portion 15 a between the different system windings 20, 21, thereby different system windings 20. , 21, the insulating paper forms a plurality of layers.
  • the insulation performance between the system windings 20 and 21 in the slot can be further improved, the distance between the system windings 20 and 21 in the slot is further increased, and the system winding 20 in the coil end portion. , 21 can be made larger.
  • FIG. 3 it is inserted between the coil end portion of the first system winding 20 disposed on the inner peripheral side and the coil end portion of the second system winding 21 disposed on the outer peripheral side.
  • the folded portion 111 is formed at the end of the coil end insulating member 11 on the stator core side, so that the folded portion 111 comes into contact with the inner peripheral side of the second system winding 21 and is easily caught. .
  • the coil end insulating member 11 is less likely to fall out of the gap between the first system winding 20 and the second system winding 21.
  • the first system winding 20 disposed on the inner peripheral side and the second system winding 21 disposed on the outer peripheral side are coil ends so as to straddle between different slots.
  • the coil end insulating member 11R has flange portions 115a and 115b sandwiched between the crossover wires 18a and 18b and the coil end portion. In this way, by sandwiching the flanges 115a and 115b between the crossover wires 18a and 18b and the coil end portion, the coil end insulating member 11R is detached from the gap between the first system winding 20 and the second system winding 21. There is an effect that it becomes difficult.
  • the thickness dimension Tz2 of the coil end insulating members 11 and 11R is larger than the thickness dimension Tz1 of the in-slot insulating member 15, the distance between the in-slot conductors of different system windings 20 and 21 in the slot. Can be made wider.
  • the first system winding 20 adjacent to the inner peripheral side of the coil end insulating member 11R and the second system winding 21 adjacent to the outer peripheral side have winding winding shapes in the coil end portion.
  • the shape is symmetrical with respect to the boundary between the system windings. This facilitates the insertion of the coil end insulating members 11 and 11R into the gap between the coil ends.
  • each of the plurality of system windings is a distributed winding of wave windings, so that each system winding arranged in order from the inner peripheral side to the outer peripheral side of the slot is radially It can be placed separately.
  • torque ripple can be reduced by shifting the second system winding 21 and the fourth system winding 23 by one slot.
  • the distributed winding system windings 20 and 21 are arranged on the same circumference on the inner peripheral side with a 180 degree phase separation, and the distributed winding system winding 22 , 23 may be arranged on the same circumference on the outer circumference side with a 180 degree phase separation. With this configuration, the number of radial system windings can be reduced.
  • the motor device includes a motor including a plurality of system windings 20, 21, a drive circuit 40 having an inverter 61 connected to the first system winding 20, and a second system winding 21. And a drive circuit 41 having an inverter 64 connected thereto.
  • the drive circuit 40 is connected to the neutral points of the phase windings U1, V1, and W1 of the first system winding 20, and is connected to and disconnected from the neutral points.
  • Unit 400 and ECU 81 that controls connection and disconnection by switching unit 400 according to a short circuit between different system windings may be provided.
  • the drive circuit 41 has the same configuration.
  • neutral points are connected by the switching unit 400.
  • the driving of the system winding is stopped.
  • the neutral point of the phase winding that is short-circuited by controlling the switching unit 400 Separate each other. If the neutral points of the short-circuited system windings are connected to each other, there arises a problem that a current due to the induced voltage always flows and brake torque is generated for a normal system winding. Therefore, the occurrence of such break torque can be prevented by separating the neutral points by the switching unit 400.
  • a plurality of drive circuits 40 and 41 that are individually connected to the first system winding 20 and the second system winding 21 and supply power to the first system winding 20 are provided.
  • the drive circuit 40 may be provided with a plurality of inverters 61, 62, 63 connected in parallel to the first system winding 20.
  • the drive circuit 41 has the same configuration. With this configuration, even if a failure occurs in any of the inverters 61 to 63 connected in parallel to the first system winding 20, it is possible to continue motor operation by disconnecting only the failed inverter. It becomes.
  • the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.
  • the present invention can be applied to a motor configured by distributed winding even in the case of using a continuous line instead of the segment coil. .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

La présente invention aborde le problème de la réalisation d'un moteur qui comporte une pluralité d'enroulements de système, et dans lequel il est possible d'améliorer les propriétés d'isolation entre différents enroulements de système. Ce moteur comprend: une pluralité d'enroulements de système indépendants (20, 21) qui sont disposés sur un noyau statorique (9) selon un enroulement réparti de façon à être raccordés à des onduleurs respectifs; et un élément d'isolation dans une fente (15) qui est placé dans une fente (9b) du noyau statorique (9) de façon à être disposé entre les différents enroulements de système (20, 21). Les enroulements de système (20, 21) sont constitués d'un premier enroulement de système (20) disposé sur un côté périphérique interne de la fente (9b) formée dans le noyau statorique, et d'un second enroulement de système (21) disposé sur un côté périphérique externe de la fente (9b) par rapport au premier enroulement de système (20) disposé sur le côté périphérique interne. Le second enroulement de système (21) comporte une extrémité de bobine qui est disposée à distance d'une extrémité de bobine du premier enroulement de système ( 20), un espace étant ménagé entre elles.
PCT/JP2019/000827 2018-02-15 2019-01-15 Moteur et dispositif moteur WO2019159579A1 (fr)

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JP2022156662A (ja) * 2021-03-31 2022-10-14 本田技研工業株式会社 回転電機装置
WO2022249568A1 (fr) * 2021-05-25 2022-12-01 日立Astemo株式会社 Système d'excitation électrique

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WO2016132450A1 (fr) * 2015-02-17 2016-08-25 三菱電機株式会社 Moteur duplex triphasé à aimant permanent et dispositif de direction assistée électrique
WO2018003436A1 (fr) * 2016-06-28 2018-01-04 日立オートモティブシステムズ株式会社 Stator pour une machine dynamo-électrique

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JPH04208098A (ja) * 1990-11-30 1992-07-29 Meidensha Corp 大容量可変速装置
JP2001169490A (ja) * 1999-12-09 2001-06-22 Denso Corp 車両用回転電機
JP2003264952A (ja) * 2002-03-07 2003-09-19 Mitsubishi Heavy Ind Ltd 冗長電機、及び、冗長機械装置
JP2004289930A (ja) * 2003-03-20 2004-10-14 Aisin Aw Co Ltd 電動機用絶縁紙及び電動機
JP2007312563A (ja) * 2006-05-22 2007-11-29 Toyota Motor Corp 集中巻線方式電動機用相間絶縁部材
JP2012223049A (ja) * 2011-04-13 2012-11-12 Hitachi Automotive Systems Ltd 固定子および回転電機
JP2014096915A (ja) * 2012-11-09 2014-05-22 Hitachi Automotive Systems Ltd 自動車用電動アクチュエータ
WO2016035783A1 (fr) * 2014-09-04 2016-03-10 日本精工株式会社 Dispositif de commande de moteur, procédé de détection de défaillance, dispositif de direction assistée électrique équipé de celui-ci, et véhicule
WO2016132450A1 (fr) * 2015-02-17 2016-08-25 三菱電機株式会社 Moteur duplex triphasé à aimant permanent et dispositif de direction assistée électrique
WO2018003436A1 (fr) * 2016-06-28 2018-01-04 日立オートモティブシステムズ株式会社 Stator pour une machine dynamo-électrique

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Publication number Priority date Publication date Assignee Title
JP2022156662A (ja) * 2021-03-31 2022-10-14 本田技研工業株式会社 回転電機装置
WO2022249568A1 (fr) * 2021-05-25 2022-12-01 日立Astemo株式会社 Système d'excitation électrique

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