WO2008150035A1 - Machine électrique rotative - Google Patents

Machine électrique rotative Download PDF

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Publication number
WO2008150035A1
WO2008150035A1 PCT/JP2008/060815 JP2008060815W WO2008150035A1 WO 2008150035 A1 WO2008150035 A1 WO 2008150035A1 JP 2008060815 W JP2008060815 W JP 2008060815W WO 2008150035 A1 WO2008150035 A1 WO 2008150035A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating electrical
rotor
electrical machine
degrees
magnet
Prior art date
Application number
PCT/JP2008/060815
Other languages
English (en)
Japanese (ja)
Inventor
Yoshiyuki Hisamatsu
Original Assignee
Toyota Jidosha Kabushiki Kaisha
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 Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2008150035A1 publication Critical patent/WO2008150035A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Definitions

  • the present invention relates to a rotating electrical machine, and more particularly, to a rotating electrical machine in which noise is reduced.
  • motors have been designed to reduce noise, reduce size, and improve drive efficiency.
  • the angle (polar arc degree) of two points on the outer peripheral side of each permanent magnet of the rotor is electrically Driving efficiency is improved by setting the angle to 96 degrees.
  • permanent magnets are not arranged at equally divided positions, but are shifted back and forth by 30 degrees in electrical angle. It is arranged at the position. By arranging the permanent magnets in this way, the back electromotive force generated in the coil is brought close to a sine wave, and control characteristics and efficiency are improved.
  • the angle formed by the circumferential width of the outer peripheral surface of the stator side of each permanent magnet and the axis of the rotor is determined. The cogging torque is reduced by setting the angle to a predetermined value.
  • the circumferential length on the stator side of the permanent magnet is set to a predetermined length to induce The peak value of the induced voltage is suppressed by approximating the voltage waveform to a sine wave.
  • the magnet shaft center opening is set to a predetermined angle in terms of electrical angle, and the width of the slot opening is set to a predetermined value. Within the range, the motor efficiency is improved.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a rotating electrical machine in which noise is reduced by reducing a counter electromotive voltage of a specific order. It is.
  • a rotating electrical machine includes a stator tooth formed at an interval and projecting radially inward, a stator defined between the stator teeth, and a slot in which a coil is housed.
  • a plurality of magnetic poles arranged at equal intervals, and a rotor facing the stator.
  • each said magnetic pole is prescribed
  • the virtual straight line which connects the circumferential direction edge part of each said magnet group, and the center of the said rotor, The centerline of the said magnetic pole of the said magnet group
  • the crossing angle defined by a virtual reference line that is orthogonal to the rotor and passes through the center of the rotor is set to be not less than 70.0 degrees and not more than 72.5 degrees. Further, when the center line of the magnetic pole coincides with the center line of the stator teeth, the virtual straight line passes through the slot. Preferably, the crossing angle is set to 71.0 ° or more and 71.5 ° or less.
  • the crossing angle is set to 7 1.2 5 degrees.
  • the magnet group includes a first permanent magnet located on a center line of the magnetic pole, and second and third permanent magnets arranged symmetrically across the center line of the magnetic pole.
  • the second and third permanent magnets are inclined so that a distance between the second permanent magnet and the third permanent magnet becomes smaller inward in the radial direction of the rotor. Arranged.
  • the rotating electrical machine of the present invention it is possible to reduce noise by reducing the back electromotive voltage of a specific order.
  • FIG. 1 is a partial cross-sectional view of a rotating electrical machine according to an embodiment of the present invention.
  • FIG. 2 is an enlarged view of a part of the rotating electrical machine shown in FIG.
  • Fig. 3 is a plan view of the stator.
  • Fig. 4 is a graph showing the rotation angle of the rotor (unit: electrical angle) on the horizontal axis and the back electromotive force (V) generated on each coil on the vertical axis.
  • Fig. 5 shows the frequency components of the counter electromotive voltage generated in the rotating electrical machine set to various crossing angles ⁇ 1 shown in Fig. 2, and the 5th, 7th, 1 1st, 1 3rd order components of the back electromotive voltage. It is a graph which shows.
  • FIG. 6 is a cross-sectional view of the rotating electrical machine when the crossing angle 01 is 70.0 degrees.
  • FIG. 7 is a cross-sectional view of the rotating electrical machine when the intersection angle ⁇ 1 is 72.5 °.
  • the horizontal axis shows the crossing angle ⁇ 1 of the rotating electrical machine, and the vertical axis shows the fifth-order component of the back electromotive voltage.
  • the horizontal axis represents the crossing angle ⁇ 1 of the rotating electrical machine, and the vertical axis represents the seventh-order component of the back electromotive voltage.
  • the horizontal axis represents the crossing angle ⁇ 1 of the rotating electrical machine, and the horizontal axis is a graph illustrating the 11th-order component of the back electromotive voltage.
  • FIG. 1 is a cross-sectional view of a part of a rotating electrical machine 100 according to an embodiment of the present invention
  • FIG. 2 is an enlarged view of a part of the rotating electrical machine 100 0 shown in FIG. is there.
  • the rotating electrical machine 1 00 0 has a U-phase coil (coiled phase) 1 1 0 U formed by distributed winding, a V-phase coil 1 1 0 V, Peripheral surface having a stator 1 0 0 having a W-phase coil 1 1 0 W and a plurality of magnet groups 30 A to 30 C defining a plurality of magnetic poles and facing the stator 1 0 0 A rotor 10 having 1 3.
  • the stator 100 has an annular core body 103, for example, a plurality of magnetic steel plates. It is composed of layers. A plurality of stator teeth 101 projecting inward in the radial direction is formed on the inner peripheral surface of the core body 103. Slots (concave portions) 102 are formed between the stator teeth 101, and each slot 102 opens toward the inner peripheral side of the core body 103.
  • Stator teeth 101 are wound with U-phase coil 1 10 U, V-phase coil 1 10 V, and W-phase coil 1 10 W as winding phases by distributed winding.
  • the U-phase coil 110U is located closest to the outer periphery of the core body 103, and the V-phase coil 110V is located radially inward from the U-phase coil 110U.
  • the W-phase coil 1 1 OW is located radially inward with respect to the V-phase coil 1 1 OV.
  • each coil is wound directly around the stator teeth 101.
  • each coil may be mounted using an insulator. '
  • Each U-phase coil 1 10U, V-phase coil 1 10 V, and W-phase coil 1 10W wound in this way is supplied with AC power having a phase shift. This generates a magnetic flux that passes through each coinore 1 10U, 1 10V, 1 1 OW.
  • the rotor 10 includes an annular core body 20 formed by laminating electromagnetic steel plates made of iron or iron metal.
  • the inside of the annular core body 20 is fixed to a cylindrical rotary shaft 130.
  • the rotor 10 includes a group of magnets 30 A, 30 B, 30 C each having a plurality of permanent magnets 3 1A, 32 A, 33 A, 3 1 B, 32 B, 33 B, 3 1 C, 32 C, 33 C. Is provided.
  • a plurality of magnetic poles are formed on the rotor 10 by the magnet groups 30A, 30B, and 30C.
  • the magnet groups 3 OA, 30 B, and 30 C are arranged at equal intervals in the circumferential direction of the rotor 10. For example, in Fig. 1, the smaller one of the crossing angles defined by the virtual straight line P 2 C and the virtual straight line P 2 A in the magnet group 3 OA is an electrical angle of 180 degrees. The machine angle is 45 degrees.
  • the other magnet groups 30 B and 30 C are similarly arranged.
  • the center lines P 1 A, P 1 B, and P 1 C of the adjacent magnet groups 3 OA, 30 B, and 30 C are arranged so as to be shifted from each other by 45 degrees in mechanical angle.
  • the magnetic poles on the surface of the 33C stator 100 side are the same.
  • the magnetic poles on the surface on the stator 100 side of the permanent magnets 31 A, 32 A, 33 A constituting the magnet group 3 OA are N magnetic poles.
  • the magnetic poles on the stator 100 side of the magnet groups 3 OA, 30 B, and 30 C adjacent to each other in the circumferential direction of the rotor 10 are arranged to be different from each other, and are arranged so that the magnetic poles are alternately different in the circumferential direction.
  • the magnetic pole on the stator 100 side of the magnet group 3 OA is an N pole
  • the magnetic pole on the stator 100 side of the magnet group 30 B is an S pole.
  • magnetic poles having different polarities are formed at equal intervals in the circumferential direction on the surface of the rotor 10.
  • each magnetic pole (magnet group 30A, 30B, 30C) is pulled when being sequentially pulled by the magnetic poles generated in the coils of the stator 100. Variations in the suction force applied to the rotor 10 can be suppressed, and vibrations in the rotor 10 can be suppressed.
  • Each magnet group 3 OA, 30 B, 30C includes three permanent magnets. For this reason, the amount of magnetic flux generated from each magnet group 30A, 30B, 3OC is sufficiently secured, and a large torque can be generated.
  • center lines P 1A, P 1 B, and P 1 C passing through the centers of the magnetic poles are shown.
  • the center line P 1A passes through the center of the magnetic pole defined by the magnet group 3 OA and the center O of the rotor 10.
  • the permanent magnet (first permanent magnet) 33 A is accommodated in a magnet accommodation hole 43 A formed on the outer peripheral edge side of the rotor 10 and is located on the center line P 1 A. Yes.
  • Permanent magnets (second and third permanent magnets) 3 1A and 32A are housed in magnet housing holes 41 A and 4 2 A ⁇ formed at positions adjacent to the permanent magnet 33 A in the circumferential direction of the rotor 10 Has been.
  • the permanent magnets 31 A and 32 A are provided apart from each other in the circumferential direction of the rotor 10, and the permanent magnet 31 A and the permanent magnet 32 A are arranged in the radial direction of the rotor 10. It is inclined so as to approach each other. For this reason, in FIG. 1, the distance between the adjacent magnet groups 30A to 30C can be secured even on the radially inner side of the rotor 10, and the strength can be secured. Further, the distance between the permanent magnets 31A and 32A is secured on the outer peripheral side of the rotor 10, and even if the permanent magnet 33A is accommodated between the permanent magnets 31A and 32A, each permanent magnet 31A , 32 A, 33 A can be secured, and the rigidity of the rotor 10 can be secured.
  • the permanent magnet 33 A is located on the magnetic pole center line P 1 A of the magnet group 3 OA.
  • the other two permanent magnets 32 A and 33 A are arranged symmetrically with respect to the center line P I A.
  • the virtual straight line P 3 A is a straight line passing through the circumferential end QA of the magnet group 3 OA located in the circumferential direction of the rotor 10 and the center O of the rotor 10.
  • the virtual reference line L of the magnet group 3 OA is a straight line passing through the center 0 of the rotor 10 and extending so as to be orthogonal to the center line PIA.
  • the virtual reference line L passes through the center of the magnetic pole of the magnet group located on the opposite side of the magnet group 3 OA with respect to the magnet group 3 OB.
  • the smaller crossing angle ⁇ 1 is set to a mechanical angle of 70.00 degrees or more and 72.50 degrees or less. .
  • the intersection angle 03 between the extending direction of each permanent magnet 3 1 A, 31 B and the parallel reference line LA parallel to the virtual reference line L is, for example, a machine The angle ranges from 30 degrees to 40 degrees, and preferably 35 degrees. In the rotating electrical machine 1000 shown in FIGS. 1 and 2, the intersection angle S 3 is set to 35 degrees.
  • Fig. 3 is a plan view of the stator.
  • coils 510 to 5 1 7 constitute a U-phase coil 1 10U of stator coil 22
  • coils 520 to 527 constitute a V-phase coil 1 10 V of stator coil 22
  • a coil 530 to 537 constitute a W phase coil 110W of the stator coil 22.
  • Each of 520 to 527 and 530 to 537 has a substantially arc shape.
  • the coils 510 to 517 are arranged on the outermost periphery.
  • the coils 520 to 527 are disposed inside the coils 510 to 517, and are disposed at positions shifted by a certain distance in the circumferential direction with respect to the coils 510 to 517, respectively.
  • the coils 530 to 537 are disposed inside the coils 520 to 527 and are respectively displaced from the coils 520 to 527 by a certain distance in the circumferential direction.
  • Each of the coils 5 10 to 51 7, 520 to 527, 530 to 537 is wound around each of a plurality of corresponding teeth.
  • the coin 510 corresponds to the teeth 1 to 5 and is formed by being wound around the entire teeth 1 to 5 a predetermined number of times from the outer periphery.
  • Coils 5 1 1 to 51 7, 520 to 527, and 530 to 537 are also formed on the corresponding teeth in the same manner as coil 510.
  • Coils 510 to 513 are connected in series, one end is a terminal U1, and the other end is a neutral point UN1.
  • Coils 5 14 to 5 17 are connected in series, and one end is a terminal U 2 and the other end is a neutral point UN 2.
  • Coils 520 to 523 are connected in series, one end is a terminal V I and the other end is a neutral point VN 1.
  • Coils 524 to 527 are connected in series, and one end is a terminal V 2 and the other end is a neutral point VN 2.
  • Coils 530 to 533 are connected in series, with one end being a terminal W1 and the other end being a neutral point WN1.
  • Coils 534 to 537 are connected in series, and one end is a terminal W2 and the other end is a neutral point WN2.
  • an alternating current with a phase shift is supplied to the coils 510 to 5 1 7, 520 to 527, and 530 to 537, thereby rotating the rotor 10 in a predetermined direction.
  • permanent magnets 31 A, 32 A, 33 A, 3 1 B, 32 B, 33 B passing through the coils 510 to 51 7, 520 to 52 7, 530 to 537, 3
  • the amount of magnetic flux from 1 C, 32 C, and 33 C fluctuates.
  • Fig. 4 the horizontal axis shows the rotation angle (unit: electrical angle) of the rotor 10, and the vertical axis 6 is a graph showing the counter electromotive voltage (V) generated in each coil 5 10 to 5 1 7, 5 2 0 to 5 2 7, and 5 3 0 to 5 3 7.
  • Fig. 5 shows the frequency components of the counter electromotive voltage generated in the rotating electrical machine set at various crossing angles ⁇ 1 shown in Fig. 2, and the 5th, 7th, 1 1st, 1 3rd order components of the back electromotive voltage are shown. It is a graph to show.
  • the characteristics of the counter electromotive voltage shown at the right end of the graph are the characteristics of the rotating electrical machine as a comparative example.
  • each magnet group is composed of permanent magnets in which two permanent magnets are arranged in a V shape.
  • the rotating electrical machine of the comparative example has a permanent magnet 3 3 shown in FIG. It is a rotating electric machine with A, 3 3 B and 3 3 C removed.
  • the waveforms indicating the counter electromotive voltages generated in the respective coins 5 1 0 to 5 1 7, 5 2 0 to 5 2 7, 5 3 0 to 5 3 7 are overlapped with each other.
  • the shape approximates a sine wave.
  • the fifth component of the back electromotive voltage obtained by frequency decomposition of the back electromotive voltage wave shown in FIG. 4 has a frequency five times the frequency of the back electromotive voltage wave shown in FIG. It is a wave.
  • the 7th, 1 1st and 1 3rd order components are waves having frequencies 7 times, 11 times and 13 times the frequency of the back electromotive force wave shown in FIG.
  • the order component of the least common multiple of the number of poles and the number of phases of the coil and the order component of the number of slots are large evaluation items.
  • the rotating electrical machine 100 according to the present embodiment is an 8-pole 3-phase motor and has a number of openings of 48. Therefore, noise generated by driving the rotating electrical machine 100 Among them, the main evaluation item is to reduce the 2nd and 4th order components and the 48th order components.
  • the 5th and 7th order components of the back electromotive voltage affect the 2nd and 4th order components of the noise
  • the 1st and 1st order components of the back electromotive force and the 1st and 3rd order components affect the 4th and 8th order components of the noise. Sounds.
  • the angle in the width direction (circumferential direction of the rotor 10) of each slot 10 2 around the center O is 2.5 degrees (mechanical angle).
  • the angle in the width direction of the stator teeth 100 around O is set to 5.0 degrees (mechanical angle).
  • the total of the 5th, 7th, 1st, 1st, 3rd order components is smaller than the total of the rotating electrical machine of the comparative example I understand that. That is, it can be seen that the waveform of the counter electromotive voltage generated in the rotating electrical machine can be approximated to a sine wave, and noise generated in the rotating electrical machine can be reduced.
  • the crossing angle is larger than 72.5 °, the sum of the order components of the counter electromotive voltage becomes larger than the total of the rotating electrical machines of the comparative example.
  • FIG. 6 is a cross-sectional view of the rotating electrical machine when the crossing angle is 0 1 force 70.0 degrees.
  • FIG. 6 when the center line P 1 A of the magnetic poles of the magnet group 3 OA is aligned with the center line of the stator teeth 10 0 1 A extending in the radial direction, Two teeth adjacent to each other in the circumferential direction 1 0 1 C, and the stator teeth 1 0 1 D located on the opposite side of the stator teeth 1 0 1 A with respect to this stator teeth 1 0 1 C
  • the virtual straight line P 3 A passes through the slot 1 0 2 C.
  • the virtual straight line! 5 3 A extends along the side surface of the stator teeth 1 0 1 D defining the slot 1 0 2 C.
  • FIG. 7 is a cross-sectional view of the rotating electric machine when the crossing angle ⁇ 1 is 72.5 °.
  • the virtual straight line P 3 A extends along the side surface of the stator teeth 1 0 1 C that defines the slot 1 0 2 C.
  • the crossing angle 0 1 is not less than 70.0 ° and not more than 72.5 °
  • the virtual straight line P 3 A passes through the slot 1 0 2 C, and the generated noise is removed from the magnet.
  • the motor noise is smaller than that of a rotating electrical machine with a V-shaped arrangement that defines the magnetic pole.
  • the horizontal axis shows the crossing angle 0 1 of the rotating electrical machine
  • the vertical axis is a graph showing the fifth-order component of the back electromotive force
  • FIG. 9 shows the crossing angle 0 1 of the rotating electrical machine
  • the vertical axis is a graph showing the 7th-order component of the back electromotive force
  • FIG. 10 is a graph in which the horizontal axis indicates the crossing angle 0 1 of the rotating electrical machine, and the horizontal axis indicates the first-order component of the back electromotive voltage.
  • the solid lines indicate the fifth-order component, seventh-order component, and first-order component of the back electromotive voltage of the rotating electrical machine as the comparative example.
  • the rotating electrical machine 1 00 0 0 is a comparative example at any crossing angle ⁇ 1 of not less than 70.0 degrees and not more than 73.0 degrees. It can be seen that the fifth-order component of the back electromotive voltage is smaller than that of
  • the crossing angle 0 1 when the crossing angle 0 1 is in the range of 70.0 to 0.degree. It can be seen that the 7th-order component of the back electromotive force is smaller than that of the electric machine.
  • the rotating electrical machine 1000 according to the present embodiment when the crossing angle ⁇ 1 is within the range of 70.00 degrees or more and 72.00 degrees or less, the rotating electrical machine 1000 according to the present embodiment has a counter electromotive voltage higher than that of the rotating electrical machine of the comparative example. It can be seen that the first-order component of is small.
  • the 13th-order component of the counter electromotive voltage generated in the rotating electrical machine 1000 according to the present embodiment is sufficiently smaller than the 13th-order component of the counter electromotive voltage 13 generated in the rotating electrical machine of the comparative example.
  • the rotating electrical machine 1000 when the crossing angle 0 1 is within the range of 70.00 degrees or more and 71.50 degrees or less, the rotating electrical machine 1000 is more reverse than the rotating electrical machine of the comparative example. It can be seen that the fifth-order, 1 1st-order, and 1 3rd-order components of the electromotive voltage are small, and the 7th-order component of the rotating electrical machine 1000 approximates the rotating electrical machine of the comparative example. For this reason, in the rotating electrical machine 1000 according to the present embodiment set to the intersection angle 61 as described above, any of the 24th-order component and 48th-order component of the generated noise occurs in the rotating electrical machine of the comparative example. It can be seen that it can be reduced from the 24th and 48th components. When the crossing angle 0 1 is larger than 71.50 degrees, the seventh-order component of the back electromotive voltage becomes larger than that of the rotating electric machine of the comparative example.
  • the first-order component of the back electromotive voltage is particularly small, and the 48th-order component of noise generated in rotating machine 1000 Can be particularly reduced.
  • the crossing angle 0 1 is smaller than 71.00 degrees, the 1st-order component of the back electromotive voltage increases, and when the crossing angle 0 1 is greater than 71.50 degrees, the 1st-order of the back electromotive voltage is increased. Ingredients become larger. Furthermore, as shown in Fig.
  • the crossing angle 6 1 by setting the crossing angle 6 1 to 71.25 degrees, the first-order component of the back electromotive voltage can be minimized, and the 48th-order noise generated in the rotating electrical machine 1000 can be minimized.
  • the component can be reduced.
  • the crossing angle 0 1 is 71.25 degrees
  • the virtual straight line P 3 A coincides with the center line of the slot 102 C extending in the radial direction as shown in FIG.
  • the sum of the components of each back electromotive voltage generated in the rotating electrical machine 1000 can be reduced, and the motor noise generated in the rotating electrical machine 1000 can be reduced.
  • the results shown in FIGS. 4 to 10 are calculated by electromagnetic field simulation such as J1 MAG (manufactured by Japan Research Institute, Ltd.).
  • the present invention can be applied to a rotating electrical machine, and is particularly suitable for a rotating electrical machine in which noise is reduced.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Cette invention se rapporte à une machine électrique rotative (1000) comprenant un stator (100) comportant des phases hélicoïdales (110U, 110V, 110W) et comprenant également un rotor (10) comportant des pôles magnétiques qui sont disposés à intervalles égaux et face au stator (100). Chaque pôle magnétique est défini par des groupes d'aimants (30A, 30B, 30C) comprenant des aimants permanents (31A, 31B, 31C). L'angle de croisement entre une ligne imaginaire qui croise une extrémité circonférentielle d'un groupe d'aimants (30A) situé dans la direction circonférentielle du rotor (10) et le centre (O) du rotor (10) et une ligne de référence imaginaire (L) qui est perpendiculaire à la ligne centrale (P1A) du pôle magnétique du groupe d'aimants (30A) et traverse le centre (O) du rotor (10) ne fait pas moins de 70,00 degrés mais ne dépasse pas 72,50 degrés.
PCT/JP2008/060815 2007-06-07 2008-06-06 Machine électrique rotative WO2008150035A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007151725A JP2008306849A (ja) 2007-06-07 2007-06-07 回転電機
JP2007-151725 2007-06-07

Publications (1)

Publication Number Publication Date
WO2008150035A1 true WO2008150035A1 (fr) 2008-12-11

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WO (1) WO2008150035A1 (fr)

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CN102214963A (zh) * 2010-04-01 2011-10-12 天津市松正电动科技有限公司 一种新型转子铁心的多层结构
WO2012014728A1 (fr) * 2010-07-27 2012-02-02 日産自動車株式会社 Rotor pour moteur électrique
US20120200187A1 (en) * 2011-02-03 2012-08-09 Aisin Seiki Kabushiki Kaisha Rotor for rotary electric machine
GB2551537A (en) * 2016-06-21 2017-12-27 Jaguar Land Rover Ltd Electrical machine
CN113809849A (zh) * 2020-06-12 2021-12-17 日本电产株式会社 旋转电机

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CN102986116B (zh) * 2010-07-14 2015-11-25 株式会社丰田自动织机 永久磁铁埋入型转子以及旋转电机
JP5643127B2 (ja) 2011-02-03 2014-12-17 トヨタ自動車株式会社 回転電機用回転子
DE102016222398A1 (de) * 2016-11-15 2018-05-17 Robert Bosch Gmbh Optimierte elektrische Maschine
EP3611825A4 (fr) 2017-04-13 2020-12-23 Kabushiki Kaisha Toshiba Rotor destiné à une machine dynamo-électrique
CN108429375B (zh) 2018-05-08 2020-06-16 珠海格力电器股份有限公司 转子结构、永磁辅助同步磁阻电机及电动汽车
WO2022097322A1 (fr) * 2020-11-09 2022-05-12 日本電産株式会社 Machine tournante électrique
WO2022172478A1 (fr) * 2021-02-10 2022-08-18 日本電産株式会社 Machine électrique tournante

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JP2006014457A (ja) * 2004-06-24 2006-01-12 Fanuc Ltd 同期電動機
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JP2006254629A (ja) * 2005-03-11 2006-09-21 Toyota Motor Corp 回転電機のロータ、回転電機、車両駆動装置

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102214963A (zh) * 2010-04-01 2011-10-12 天津市松正电动科技有限公司 一种新型转子铁心的多层结构
US9083217B2 (en) 2010-07-27 2015-07-14 Nissan Motor Co., Ltd. Rotor for electric motor
CN103026586A (zh) * 2010-07-27 2013-04-03 日产自动车株式会社 电动机用转子
RU2533190C2 (ru) * 2010-07-27 2014-11-20 Ниссан Мотор Ко., Лтд. Ротор для электромотора
WO2012014728A1 (fr) * 2010-07-27 2012-02-02 日産自動車株式会社 Rotor pour moteur électrique
EP2600498A4 (fr) * 2010-07-27 2018-03-28 Nissan Motor Co., Ltd Rotor pour moteur électrique
US20120200187A1 (en) * 2011-02-03 2012-08-09 Aisin Seiki Kabushiki Kaisha Rotor for rotary electric machine
US8890385B2 (en) * 2011-02-03 2014-11-18 Toyota Jidosha Kabushiki Kaisha Rotor for rotary electric machine
GB2552741A (en) * 2016-06-21 2018-02-07 Jaguar Land Rover Ltd Electrical machine
GB2551537A (en) * 2016-06-21 2017-12-27 Jaguar Land Rover Ltd Electrical machine
GB2552741B (en) * 2016-06-21 2019-10-09 Jaguar Land Rover Ltd Electrical machine
US11223250B2 (en) 2016-06-21 2022-01-11 Jaguar Land Rover Limited Electrical machine
US11757316B2 (en) 2016-06-21 2023-09-12 Jaguar Land Rover Limited Electrical machine
CN113809849A (zh) * 2020-06-12 2021-12-17 日本电产株式会社 旋转电机
CN113809849B (zh) * 2020-06-12 2024-07-02 日本电产株式会社 旋转电机

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