WO2012086607A1 - Machine électrique rotative - Google Patents

Machine électrique rotative Download PDF

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Publication number
WO2012086607A1
WO2012086607A1 PCT/JP2011/079417 JP2011079417W WO2012086607A1 WO 2012086607 A1 WO2012086607 A1 WO 2012086607A1 JP 2011079417 W JP2011079417 W JP 2011079417W WO 2012086607 A1 WO2012086607 A1 WO 2012086607A1
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WO
WIPO (PCT)
Prior art keywords
rotor
magnetic
stator
core
rotor core
Prior art date
Application number
PCT/JP2011/079417
Other languages
English (en)
Japanese (ja)
Inventor
武輝 貴志
阿部　典行
大矢　聡義
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Publication of WO2012086607A1 publication Critical patent/WO2012086607A1/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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • 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
    • H02K1/278—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors

Definitions

  • the present invention relates to a rotating electrical machine that can be used as an electric motor or a generator, and more particularly to a multi-rotor rotating electrical machine that includes two rotors that can rotate independently.
  • a multi-rotor type rotating electrical machine is disposed between an annular stator, an inner rotor (first rotor) that can rotate inside the stator, and the stator and the inner rotor, and can rotate coaxially with the inner rotor.
  • An outer rotor (second rotor).
  • the stator includes an armature array that includes a plurality of armatures and generates a rotating magnetic field that rotates along the circumferential direction.
  • the inner rotor includes a magnetic pole array that includes a plurality of permanent magnets.
  • the rotor includes an induction magnetic pole row composed of a plurality of induction magnetic poles made of a soft magnetic material. Further, the armature row of the stator and the magnetic pole row of the inner rotor face each other on both sides in the radial direction of the induction magnetic pole row of the outer rotor (see, for example, Patent Document 1).
  • the outer periphery of the first flange and the second flange disposed so as to be rotatable around the axis is made of a weak magnetic material and disposed at predetermined intervals in the circumferential direction.
  • a configuration is adopted in which both end portions of the plurality of connecting members are fixed by two fastening members, and an induction magnetic pole made of a soft magnetic material is supported between the connecting members adjacent in the circumferential direction.
  • first flange and the second flange are made of a conductive material such as iron or steel.
  • the first flange and the second flange are made of iron or steel, there is a possibility that magnetic flux leakage occurs and the efficiency of the rotating electric machine deteriorates.
  • the first flange and the second flange are made of a nonmagnetic material such as stainless steel in order to prevent magnetic flux leakage.
  • nonmagnetic materials such as stainless steel are more expensive than iron or steel. There was a problem.
  • the present invention has been made in view of the above-described circumstances, and an object thereof is to provide a rotating electrical machine capable of suppressing magnetic flux leakage and reducing manufacturing costs.
  • annular stator for example, a stator 10 in an embodiment described later
  • a first rotor for example, an inner rotor 20 in an embodiment described later
  • the stator and the A second rotor for example, an outer rotor 30 in an embodiment described later
  • the first rotor includes a magnetic pole array configured by arranging a plurality of permanent magnets (for example, permanent magnets 23 in an embodiment described later) so as to have magnetic poles of different polarities alternately at a predetermined pitch in the circumferential direction
  • the stator is composed of a plurality of armatures arranged in the circumferential direction (for example, a plurality of armatures 12 in an embodiment described later), and is arranged to face the magnetic pole row, and the plurality of armatures
  • An armature array that generates a rotating magnetic field
  • the rotor core is constituted by a laminated body in which soft magnetic bodies (for example, electromagnetic steel sheets and silicon steel sheets in embodiments described later) are laminated in the axial direction,
  • the end plate includes a magnetic part (for example, a first flange 31 and a second flange 32 in a later-described embodiment) and a non-magnetic part (for example, non-magnetic rings 81 and 82 and a separate ring 39 in a later-described embodiment). )
  • the non-magnetic part is disposed at both axial ends of the rotor core.
  • the invention according to claim 2 is the rotating electrical machine according to claim 1,
  • the stator includes a cylindrical stator core (for example, a stator core 11 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the first rotor includes a cylindrical rotor core (for example, a rotor core 22 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the distance obtained by combining the shortest distance between the magnetic body portion of the end face plate and the stator core and the shortest distance between the magnetic body portion of the end face plate and the rotor core of the first rotor is the rotor core of the stator core and the first rotor.
  • the end face plate is configured to be longer than the shortest distance between
  • the invention according to claim 3 is the rotating electrical machine according to claim 1,
  • the stator includes a cylindrical stator core (for example, a stator core 11 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the first rotor includes a cylindrical rotor core (for example, a rotor core 22 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the end face plate is configured such that a distance double the shortest distance between the magnetic body portion of the end face plate and the stator core is longer than the shortest distance between the stator core and the rotor core of the first rotor.
  • the invention according to claim 4 is the rotary electric machine according to claim 1,
  • the stator includes a cylindrical stator core (for example, a stator core 11 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the first rotor includes a cylindrical rotor core (for example, a rotor core 22 in an embodiment described later) configured by a laminated body in which soft magnetic bodies are laminated in the axial direction.
  • the end face plate is configured such that a distance double the shortest distance between the magnetic body portion of the end face plate and the rotor core of the first rotor is longer than the shortest distance between the stator core and the rotor core of the first rotor. It is characterized by being.
  • the invention according to claim 5 is the rotating electrical machine according to any one of claims 1 to 4,
  • the end face plate is characterized in that the magnetic body part and the non-magnetic body part are connected at a position where the end face plate does not overlap the rotor core of the second rotor in the radial direction.
  • the invention according to claim 6 is the rotating electrical machine according to any one of claims 1 to 5,
  • the non-magnetic body portion is provided with a cylindrical portion extending to the magnetic body portion side (for example, small-diameter cylindrical portions 81c and 82c in embodiments described later),
  • the cylindrical portion is fitted to step portions (for example, step portions 31c and 32c in the embodiments described later) provided in the magnetic body portion.
  • the end face plate with the magnetic body part and the non-magnetic body part as compared with the case of configuring with only the non-magnetic body part. Further, since the nonmagnetic part is disposed at both axial ends of the rotor core of the second rotor, magnetic flux leakage from the stator and the first rotor to the magnetic part of the end face plate is effectively suppressed.
  • the magnetic resistance may be low and the magnetic flux may flow through the magnetic material portion having a high magnetic permeability.
  • the distance between the shortest distance and the shortest distance between the magnetic body portion of the end face plate and the rotor core of the first rotor is set to be longer than the shortest distance between the stator core and the rotor core of the first rotor. In the delivery of the magnetic flux, the leakage of the magnetic flux to the magnetic body portion is suppressed, and the loss of the rotating electrical machine can be reduced.
  • the magnetic resistance may be low and the magnetic flux may flow through the magnetic body portion having a high permeability.
  • the magnetic resistance is low and there is a possibility that the magnetic flux flows through the magnetic part having a high magnetic permeability.
  • the magnetic part of the end plate and the first rotor By making the distance twice as short as the shortest distance from the rotor core longer than the shortest distance between the stator core and the rotor core of the first rotor, the magnetic flux from the first rotor flows to the magnetic body portion and further returns to the first rotor. It is suppressed and the loss of the rotating electrical machine can be reduced.
  • the positioning member between the rotor core and the end face plate of the second rotor only needs to be positioned in the rotational direction. Can be reduced. Further, the magnetic path area can be increased by reducing the number of positioning members.
  • FIG. 3 is a sectional view taken along line III-III in FIG.
  • FIG. 4 is a half sectional view taken along line IV-IV in FIG. 3.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 3
  • FIG. 4 is a half sectional view taken along line IV-IV in FIG. 3.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 3
  • FIG. 4 is a half sectional view taken along line IV-IV in FIG. 3.
  • It is a partially expanded sectional view of FIG. 3 which shows the structure of the coupling
  • FIG. 4 is a partially enlarged cross-sectional view of FIG. 3 showing a configuration of a portion where the knock pin of the outer rotor is arranged. It is the elements on larger scale of the outer rotor. It is the elements on larger scale of the end faceplate concerning the 1st modification. It is the elements on larger scale of the end faceplate concerning the 2nd modification.
  • FIGS. 1 to 4 are views showing an electric motor as a rotating electric machine according to the first embodiment.
  • the electric motor includes a casing 1, an annular stator 10 fixed to the inner periphery of the casing 1, and an axis line that is housed on the inner periphery side of the stator 10 and is common to the stator 10.
  • second rotor that rotates around x
  • first rotor 20 that is housed concentrically inside the outer rotor 30 and rotates about the axis x.
  • the casing 1 includes a bottomed cylindrical main body 2 and a lid 3 fixed to the opening of the main body 2.
  • the stator 10 includes an annular stator core 11 in which electromagnetic steel plates are laminated.
  • a plurality (48 in this embodiment) of teeth 13 and a plurality (48 in this embodiment) are provided on the inner peripheral surface of the stator core 11.
  • the slots 14 are alternately formed in the circumferential direction.
  • a U-phase, V-phase, and W-phase coil is distributedly wound in the slot 14 of the stator core 11, and each tooth 13 and each coil constitute a plurality of armatures 12, and each armature 12 is constant in the circumferential direction.
  • An armature row is configured by being arranged at a pitch.
  • the armature row of the stator 10 faces a magnetic pole row of the inner rotor 20 described later.
  • a three-phase alternating current from three terminals (not shown) provided in the casing 1 to the U-phase, V-phase, and W-phase coils a plurality of predetermined virtual elements generated in the plurality of armatures 12 are provided.
  • a circumferential rotating magnetic field is generated by a typical armature magnetic pole.
  • the number of armature magnetic poles generated in the stator 10 is set to 16, and therefore the number of magnetic pole pairs of the armature magnetic poles is set to 8.
  • the outer rotor 30 that accommodates the inner rotor 20 therein supports a cylindrical rotor core 40 (outer rotor core) located in the axial center and the outer periphery of the rotor core 40.
  • the disk-shaped 1st flange 31 and the 2nd flange 32 which are arrange
  • the outer rotor shaft 33 is coupled to the radial center portion of the first flange 31, and the outer rotor shaft 33 is rotatably supported by the lid portion 3 of the casing 1 via a ball bearing 35.
  • the second flange 32 is integrally formed with a second outer rotor shaft 34 located radially inward of the first flange 31, and the central portion of the second outer rotor shaft 34 in the radial direction is a ball bearing 36.
  • the main body 2 of the casing 1 is rotatably supported via the.
  • An outer rotor shaft 33 serving as an output shaft of the outer rotor 30 extends through the lid portion 3 of the casing 1 to the outside.
  • the first flange 31, the second flange 32, and the outer rotor shaft 33 are made of a relatively inexpensive magnetic material (for example, carbon steel). Moreover, between the rotor core 40 and the 1st flange 31, and between the rotor core 40 and the 2nd flange 32, in order to suppress the leakage magnetic flux from the rotor core 40, it is comprised from nonmagnetic materials, such as stainless steel, for example. Nonmagnetic rings 81 and 82 are arranged, respectively.
  • the first flange 31 and the nonmagnetic ring 81 constitute one end face plate 91
  • the second flange 32 and the nonmagnetic ring 82 constitute the other end face plate 92
  • the rotor core 40 is composed of the nonmagnetic rings 81 and 82.
  • the nonmagnetic rings 81 and 82 are disposed so as to be in contact with both end portions in the axial direction of the rotor core 40 so as to be sandwiched.
  • the rotor core 40 of the outer rotor 30 has an induction magnetic pole array in which a plurality of induction magnetic poles made of soft magnetic material are arranged at a predetermined pitch in the circumferential direction.
  • the induction magnetic pole array includes a magnetic pole array of the inner rotor 20 described later, It is located between the armature rows of the stator 10 described above.
  • a soft magnetic material is a kind of magnetic material that generates a magnetic pole when a magnetic force is applied and disappears when the magnetic force is removed.
  • the rotor core 40 of the outer rotor 30 is configured by a laminated body in which an integral annular electromagnetic steel plate (for example, a silicon steel plate) is laminated in the axial direction by caulking or bonding.
  • the rotor core 40 includes a plurality of magnetic portions 41 that respectively constitute induction magnetic poles that extend in the axial direction with a constant pitch in the circumferential direction, and adjacent magnetic portions 41 that are adjacent to each other on the inner circumferential side and the outer circumferential side.
  • a plurality of connecting portions 43 to be connected, and the adjacent magnetic portions 41 and the connecting portions 43 on the inner peripheral side and the outer peripheral side define a substantially trapezoidal gap portion 42 that constitutes a non-magnetic body portion.
  • the rotor core 40, the first flange 31 and the second flange 32 are fastened to each other by fastening bolts 70 (fastening members) via nonmagnetic rings 81 and 82.
  • fastening bolts 70 fastening members
  • FIG. 6 after the fastening bolt 70 is inserted into the insertion hole 31 a of the first flange 31 and the insertion hole 81 a of the one nonmagnetic ring 81 via the washer 71, The male screw portion 72 provided at the front end portion of the fastening bolt 70 is screwed into the screw hole 32a of the second flange 32 by being inserted into the insertion hole 82a of the other nonmagnetic ring 82 through the gap portion 42. .
  • the fastening bolts 70 are provided with three sets of four sets arranged at a 90 ° pitch in the circumferential direction, and a total of 12 sets are provided.
  • the fastening bolt 70 is made of a nonmagnetic material such as stainless steel in order to reduce eddy current loss.
  • press-fitting holes 41 a are formed in two magnetic portions 41 with a 180 ° pitch in the circumferential direction among the plurality of magnetic portions 41 on one end surface in the axial direction of the rotor core 40.
  • press-fitting holes 41a (not shown) are formed in two magnetic portions 41 having a 180 ° pitch in the circumferential direction on the other axial end surface of the rotor core 40, and the press-fitting holes 41a on both end faces are formed. , They are formed at positions different from each other by 90 ° in the circumferential direction.
  • the nonmagnetic rings 81 and 82, the first flange 31 and the second flange 32 are also formed with through-holes 81b and 82b and insertion holes 31b and 32b at positions facing the press-fitting holes 41a of the rotor core 40. .
  • a knock pin 78 is press-fitted into each press-fitting hole 41 a of the rotor core 40, and the knock pin 78 is lightly press-fitted into the through holes 81 b and 82 b of the nonmagnetic rings 81 and 82, and then the first and second flanges 31 and 32 are pressed.
  • the rotor core 40, the nonmagnetic ring 81, and the first flange 31, and the rotor core 40, the nonmagnetic ring 82, and the second flange 32 are positioned in the rotational direction by inserting the insertion holes 31b and 32b with a gap. Is done.
  • small diameter cylindrical portions 81c, 82c extending in the axial direction are formed on the inner peripheral portions of the nonmagnetic rings 81, 82, and are provided on the inner peripheral surfaces of the first and second flanges 31, 32.
  • the stepped portions 31c and 32c are respectively fitted with inlays.
  • the inner rotor 20 includes a rotor body 21 formed in a cylindrical shape, an inner rotor shaft 25 fixed through the hub 21 a of the rotor body 21, and a laminated steel plate.
  • 21 is provided with an annular rotor core 22 (inner rotor core) disposed on the outer periphery of 21.
  • the inner rotor shaft 25 is rotatably supported by the ball bearing 38 inside the first outer rotor shaft 33 on the axial line on one end side (right side in the drawing) with respect to the hub 21a, and on the other end side with respect to the hub 21a.
  • the second outer rotor shaft 34 (on the left side in the figure), it is rotatably supported by a ball bearing 37.
  • the other end portion of the inner rotor shaft 25 extends through the main body 2 of the casing 1 and extends outside the casing 1 as an output shaft of the inner rotor 20.
  • the rotor core 22 press-fitted into the outer periphery of the rotor body 21 has a plurality of permanent magnet support holes 22a along the outer peripheral surface, and the permanent magnets 23 are inserted therein and fixed by adhesion.
  • the polarities of the adjacent permanent magnets 23 of the rotor core 22 are alternately reversed, whereby the inner rotor 20 has a plurality of permanent magnets 23 arranged so as to have magnetic poles having different polarities alternately at a predetermined pitch in the circumferential direction.
  • a magnetic pole array configured as described above.
  • the inner peripheral surface (armature) of the teeth 13 of the stator core 11 is opposed to the outer peripheral surface of the induction magnetic pole exposed on the outer peripheral surface of the outer rotor 30 through a slight air gap, and the inner peripheral surface of the outer rotor 30
  • the outer peripheral surface of the rotor core 22 of the inner rotor 20 is opposed to the inner peripheral surface of the induction magnetic pole exposed at a through a slight air gap.
  • a rotating magnetic field is generated by a plurality of armature magnetic poles between the magnetic pole array of the inner rotor 20 and the armature array of the stator 10, and the induction magnetic pole array of the outer rotor 30 is disposed. Therefore, each induction magnetic pole is magnetized by the armature magnetic pole and the magnetic pole. In addition, the spacing between the adjacent induction magnetic poles (magnetic portions 41) generates magnetic lines of force that connect the magnetic pole, the induction magnetic pole, and the armature magnetic pole.
  • the torque equivalent to the electric angular velocity of the electric power and the rotating magnetic field supplied to the armature and the transmission torque of the inner rotor 20 are set to T1.
  • end face plates 91 and 92 of the outer rotor 30 will be described in detail by taking the end face plate 92 constituted by the second flange 32 and the nonmagnetic ring 82 as an example.
  • the end face plate 91 comprised by the 1st flange 31 and the nonmagnetic ring 81 has the structure similar to the end face plate 92, description is abbreviate
  • the end face plate 92 includes the second flange 32 made of a magnetic material and the nonmagnetic ring 82 made of a nonmagnetic material fitted in the second flange 32 from the inside in the axial direction by the axial direction of the rotor core 40. One end side is supported.
  • the outer diameter of the second flange 32 and the nonmagnetic ring 82 is set to be substantially the same, and the outer peripheral surface is substantially flush.
  • the plate thickness of the nonmagnetic ring 82 that is, the axial distance, is the sum of the shortest distance between the stator core 11 of the stator 10 and the second flange 32 and the shortest distance between the second flange 32 and the rotor core 22 of the inner rotor 20. The distance is set to be longer than the shortest distance between the stator core 11 and the rotor core 22.
  • the shortest distance between the stator core 11 and the second flange 32 is indicated by b ⁇ b> 1 in FIG. 8, and the radially inner corner on the one axial end side of the stator core 11 and the other axial end side of the second flange 32.
  • the shortest distance between the second flange 32 and the rotor core 22 is indicated by b2 in FIG. 8, and the radially outer corner on the one end side in the axial direction of the rotor core 22 and the second flange. 32 is the distance from the radially inner corner on the other axial end side of 32.
  • the shortest distance between the stator core 11 and the rotor core 22 is a radial distance between the inner peripheral surface of the stator core 11 and the outer peripheral surface of the rotor core 20 shown by a in FIG.
  • the magnetic resistance when the magnetic flux flows from the stator 10 to the inner rotor 20 via the second flange 32 the magnetic flux becomes the stator 10 It becomes larger than the magnetic resistance when flowing directly from to the inner rotor 20.
  • the magnetic resistance when the magnetic flux flows from the inner rotor 20 to the stator 10 via the second flange 32 is also larger than the magnetic resistance when the magnetic flux flows directly from the inner rotor 20 to the stator 10. Therefore, magnetic flux leakage to the second flange 32 is suppressed.
  • the thickness of the nonmagnetic ring 82 is set to be twice the shortest distance b1 between the second flange 32 and the stator core 11.
  • the distance (2 ⁇ b1) is preferably set to be longer than the shortest distance a between the stator core 11 and the rotor core 22.
  • the thickness of the nonmagnetic ring 82 is set to the shortest distance b2 between the second flange 32 and the rotor core 22.
  • the double distance (2 ⁇ b2) is preferably set to be longer than the shortest distance a between the stator core 11 and the rotor core 22.
  • the end face plate 91 is composed of the first flange 31 made of a magnetic material and the nonmagnetic ring 81 made of a nonmagnetic material, and the end face plate 92 is made of a magnetic material. Since the second flange 32 and the nonmagnetic ring 82 made of a nonmagnetic material are used, the manufacturing cost can be reduced as compared with the case of using only the nonmagnetic material. Further, since the rotor core 40 is supported so as to be sandwiched between the nonmagnetic rings 81 and 82, magnetic flux leakage from the stator 10 and the inner rotor 20 to the first and second flanges 31 and 32 is effectively suppressed.
  • the thickness of the non-magnetic rings 81 and 82 is thin, the magnetic resistance of the non-magnetic rings 81 and 82 is lowered, and there is a possibility that magnetic flux flows through the first and second flanges 31 and 32 having high permeability.
  • the total distance of the shortest distance b1 between the stator core 11 and the first flange 31 and the shortest distance b2 between the first flange 31 and the rotor core 22 is longer than the shortest distance a between the stator core 11 and the rotor core 22.
  • the thickness of the nonmagnetic ring 81 is set, and the distance obtained by combining the shortest distance b1 between the stator core 11 and the second flange 32 and the shortest distance b2 between the second flange 32 and the rotor core 22 is the stator core 11 and the rotor core.
  • the thickness of the non-magnetic ring 82 is set so as to be longer than the shortest distance a between the stator 22 and the magnetic flux between the stator 10 and the outer rotor 30. Only the first, magnetic flux that leaks can be reduced loss is suppressed motor to the second flange 31 and 32 in passing.
  • the outer diameter dimension of the rotor core 40 is made smaller than the inner diameter dimension of the rotor core 40, and a separate ring 39 made of a non-magnetic material fastened with a bolt 95 is arranged on the outer diameter side of the second flange 32.
  • a stepped portion 32c provided on the inner peripheral surface of the second flange 32 may be fitted into the provided stepped portion 39a.
  • one magnetic pole is composed of a single permanent magnet, but may be composed of a plurality of permanent magnets.
  • one magnetic pole is formed, thereby increasing the directivity of the magnetic field lines. May be.
  • an electromagnet or an armature capable of generating a moving magnetic field may be used.
  • the U-phase to W-phase coils are wound around the slots by distributed winding.
  • the present invention is not limited to this, and concentrated winding may be used.
  • the coil is configured by a U-phase to W-phase three-phase coil.
  • the number of phases of the coil is not limited to this, and may be arbitrary as long as a rotating magnetic field can be generated.
  • the inner rotor 20 as the first rotor and the outer rotor 30 as the second rotor are arranged inside the stator 10.
  • the present invention is not limited to this, and the first rotor and the second rotor are connected to the stator. You may arrange
  • Stator 11 Stator Core 12 Armature 20 Inner Rotor (First Rotor) 22 Rotor core (inner rotor core) 23 Permanent magnet 30 Outer rotor (second rotor) 31 First flange (magnetic part) 32 Second flange (magnetic part) 40 Rotor core (outer rotor core) 41 Magnetic part (Induction magnetic pole) 81 Non-magnetic ring (non-magnetic part) 82 Non-magnetic ring (non-magnetic part)

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Un rotor extérieur (30), qui est disposé entre un stator et un rotor intérieur, et qui fait partie d'une rangée à pôle magnétique à induction, comprend un noyau de rotor cylindrique (40) et des plaques de face frontale (91, 92) qui sont disposées à ses deux extrémités. Les plaques de face frontale (91, 92) sont constituées de première et seconde brides (31, 32), chacune de ces brides étant constituée d'un matériau magnétique, et d'anneaux non magnétiques (81, 82) qui comprennent un matériau non magnétique, et lesdits anneaux non magnétiques (81, 82) sont disposés aux deux sections d'extrémité dans la direction axiale du noyau de rotor (40).
PCT/JP2011/079417 2010-12-24 2011-12-19 Machine électrique rotative WO2012086607A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010287540 2010-12-24
JP2010-287540 2010-12-24

Publications (1)

Publication Number Publication Date
WO2012086607A1 true WO2012086607A1 (fr) 2012-06-28

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Application Number Title Priority Date Filing Date
PCT/JP2011/079417 WO2012086607A1 (fr) 2010-12-24 2011-12-19 Machine électrique rotative

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WO (1) WO2012086607A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08111963A (ja) * 1994-10-11 1996-04-30 Nippondenso Co Ltd 二軸出力型電動機
JP2008289219A (ja) * 2007-05-15 2008-11-27 Honda Motor Co Ltd 電動機
JP2008289213A (ja) * 2007-05-15 2008-11-27 Honda Motor Co Ltd 電動機
JP2010017032A (ja) * 2008-07-04 2010-01-21 Honda Motor Co Ltd 回転電機用ステータおよび電動機
JP2010273521A (ja) * 2009-05-25 2010-12-02 Honda Motor Co Ltd 電動機の制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08111963A (ja) * 1994-10-11 1996-04-30 Nippondenso Co Ltd 二軸出力型電動機
JP2008289219A (ja) * 2007-05-15 2008-11-27 Honda Motor Co Ltd 電動機
JP2008289213A (ja) * 2007-05-15 2008-11-27 Honda Motor Co Ltd 電動機
JP2010017032A (ja) * 2008-07-04 2010-01-21 Honda Motor Co Ltd 回転電機用ステータおよび電動機
JP2010273521A (ja) * 2009-05-25 2010-12-02 Honda Motor Co Ltd 電動機の制御装置

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