WO2012086614A1 - Machine électrique tournante - Google Patents

Machine électrique tournante Download PDF

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Publication number
WO2012086614A1
WO2012086614A1 PCT/JP2011/079427 JP2011079427W WO2012086614A1 WO 2012086614 A1 WO2012086614 A1 WO 2012086614A1 JP 2011079427 W JP2011079427 W JP 2011079427W WO 2012086614 A1 WO2012086614 A1 WO 2012086614A1
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WO
WIPO (PCT)
Prior art keywords
rotor
rotor core
flange
magnetic pole
electrical machine
Prior art date
Application number
PCT/JP2011/079427
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English (en)
Japanese (ja)
Inventor
石川　聡
阿部　典行
重光 圷
大矢　聡義
新 青木
加藤　久
Original Assignee
本田技研工業株式会社
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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 WO2012086614A1 publication Critical patent/WO2012086614A1/fr

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    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K51/00—Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts

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 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 concentrically with the inner 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 ends of the plurality of connecting members are fixed and an induction magnetic pole made of a soft magnetic material is supported between the connecting members adjacent in the circumferential direction.
  • the present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a rotating electrical machine that can improve the assemblability by simplifying the configuration of the second rotor including the induction magnetic pole row.
  • 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 second rotor includes a cylindrical rotor core (for example, a rotor core 40 in an embodiment described later) positioned at the axial center of the second rotor, and axially opposite ends of the rotor core so as to support the rotor core.
  • a cylindrical rotor core for example, a rotor core 40 in an embodiment described later
  • a disc-shaped first flange for example, a first flange 31 in an embodiment described later
  • a second flange for example, a second flange 32 in an embodiment described later
  • the rotor core is composed of a laminate in which an integral annular soft magnetic material is laminated in the axial direction
  • the rotor core has a plurality of connecting portions (for example, connecting portions 43 in the embodiments described later) that respectively connect the adjacent induction magnetic poles (for example, magnetic portions 41 in the embodiments described later),
  • a torque transmission member for example, a torque transmission pin 60 in an embodiment described later
  • the invention according to claim 2 is the rotating electrical machine according to claim 1,
  • a member for example, a shoulder bolt 50 in an embodiment described later.
  • the invention according to claim 3 is the rotary electric machine according to claim 2,
  • the rotor core of the second rotor defines a space (for example, a space 42 in an embodiment described later) by the adjacent induction magnetic pole and the connecting portion,
  • the connecting member penetrates the space.
  • the invention according to claim 4 is the rotating electrical machine according to claim 2,
  • a pressure contact member that applies an axial force to the rotor core between the rotor core of the second rotor and at least one of the first flange and the second flange (for example, in an embodiment described later)
  • a wave washer 80 is provided.
  • the invention according to claim 5 is the rotating electrical machine according to claim 1,
  • the previous torque transmission member penetrates the induction magnetic pole of the rotor core of the second rotor.
  • the invention according to claim 6 is the rotating electrical machine according to claim 1,
  • the rotor core of the second rotor defines a space portion by the adjacent induction magnetic pole and the connecting portion,
  • the torque transmission member penetrates the space.
  • the invention according to claim 7 is the rotating electrical machine according to claim 6,
  • the elastic member 62) according to the embodiment is arranged.
  • the invention according to claim 8 is the rotating electrical machine according to any one of claims 5 to 7,
  • the torque transmission member is press-fitted and fixed to the first and second flanges.
  • the structure of the rotor core is simplified, the assembly is simplified, and the centrifugal rigidity of the second rotor with respect to the centrifugal force can be improved. Further, the torque generated in the rotor core can be reliably transmitted to the flange by the torque transmitting member disposed between the flanges.
  • the first flange and the second flange can be firmly coupled by the connecting member while effectively utilizing the space without adversely affecting the induction magnetic pole of the rotor core.
  • the rotor core can be positioned in the axial direction by the pressure contact member while suppressing the axial force for tightening from acting on the rotor core.
  • the radial direction and the circumferential direction positioning of the laminated body constituting the rotor core can be performed by the torque transmission member, and the dispersion of the electromagnetic steel plates constituting the laminated body is prevented by the torque transmission member. be able to.
  • the assembly of the rotor core can be performed easily. Further, it is not necessary to process a through hole in the induction magnetic pole of the rotor core, and the magnetic flux passage area can be increased and the motor performance can be improved.
  • radial vibration generated in the rotor core can be absorbed by the elastic member, and transmission of the vibration to the flange can be suppressed.
  • a radial displacement difference is generated between the rotor core and the flange depending on the difference in the constituent material and shape of the rotor core and the flange. Therefore, excessive stress can be suppressed from occurring in the rotor core, the torque transmission member, and the flange.
  • the number of connecting members connecting between both flanges can be reduced or the connecting members can be omitted.
  • 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.
  • 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.
  • FIG. 4 is a half sectional view taken along line IV-IV in FIG. 3.
  • FIG. 3A is a partially enlarged cross-sectional view of FIG. 3 showing a configuration of a portion where the torque transmission pin of the outer rotor is arranged
  • FIG. 3B is a cross-sectional view taken along the line VII-VII of FIG. FIG.
  • It is a figure for demonstrating the arrangement position of the slider in the circumferential direction of the outer rotor, and is a figure which shows a flange seeing from the inner side of an axial direction.
  • FIG. 6 is a view showing an example in which a screw pin is provided on a first flange as a first modification of the outer rotor, and is a view showing the flange as viewed from the outside in the axial direction.
  • FIG. 6 is a view showing an example in which shims are arranged on the inner surface of a first flange as a second modification of the outer rotor, and is a view showing the flange as viewed from the inside in the axial direction.
  • (A) is an expanded sectional view of the arrangement
  • (b) is an enlarged perspective view of a shim.
  • FIG. 4 shows the outer rotor and inner rotor of an electric motor as a rotary electric machine of 2nd Embodiment of this invention. It is a disassembled perspective view of the same outer rotor. It is sectional drawing of the part which has arrange
  • FIG. 4 shows the outer rotor and inner rotor of an electric motor as a rotary electric machine of 3rd Embodiment of this invention. It is a disassembled perspective view of the same outer rotor.
  • FIGS. 1 to 4 are views showing an electric motor as a rotating electrical 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 2 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 houses the inner rotor 20 includes a cylindrical rotor core 40 that is located in the center in the axial direction, and the rotor core 40 that supports the rotor core 40 at each outer peripheral portion.
  • Disc-shaped first flange 31 and second flange 32 disposed on both ends in the axial direction.
  • a first outer rotor shaft 33 is connected to the central portion of the first flange 31 in the radial direction, and the first outer rotor shaft 33 is rotatably supported by the lid portion 3 of the casing 1 via a ball bearing 35.
  • a second outer rotor shaft 34 is connected to the radial center portion of the second flange 32, and the second outer rotor shaft 34 is rotatable to the main body portion 2 of the casing 1 via a ball bearing 36. It is supported.
  • the 1st outer rotor shaft 33 used as the output shaft of the outer rotor 30 penetrates the cover part 3 of the casing 1, and is extended outside.
  • the first flange 31 and the second flange 32 are made of a nonmagnetic material (for example, stainless steel), and the first and second outer rotor shafts 33 and 34 are made of a magnetic material (carbon steel) that is less expensive than the nonmagnetic material. ).
  • the reason why the first flange 31 and the second flange 32 are made of a non-magnetic material is to suppress leakage magnetic flux from the rotor core 40.
  • 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 constituted by a laminated body in which electromagnetic steel plates (for example, silicon steel plates) that are soft magnetic bodies having an annular shape are laminated in the axial direction.
  • 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.
  • the adjacent magnetic part 41 and the inner peripheral side and outer peripheral side connection part 43 define a substantially trapezoidal space part 42 that constitutes a nonmagnetic part.
  • the number of the induction magnetic poles comprised by the magnetic part 41 is set to 20, Therefore, the number of the induction magnetic pole pairs is set to 10.
  • torque transmission for transmitting torque generated in the rotor core 40 to the first flange 31 and the second flange 32 is provided between the first flange 31 and the second flange 32 of the outer rotor 30.
  • a pin (torque transmission member) 60 is disposed.
  • (Connecting member) 50 is arranged.
  • four torque transmission pins 60 are provided at a 90 ° pitch in the circumferential direction.
  • three sets of four shoulder bolts 50 arranged at a 90 ° pitch in the circumferential direction are provided, and a total of 12 shoulder bolts 50 are provided.
  • the shoulder bolt 50 is a rod-shaped body having a shoulder portion (step portion) 51 with an enlarged outer diameter in the vicinity of both ends, and has male screw portions 52 and 53 on the outer side in the axial direction of the shoulder portion 51. ing.
  • the shoulder bolt 50 penetrates the space portion 42 of the rotor core 40 in a non-contact state, and a male screw portion 52 provided at one end is screwed into the screw hole 32a of the second flange 32 so that one end thereof is in the second flange 32.
  • the other end is coupled to the first flange 31 by passing the male threaded portion 53 provided at the other end through the threaded hole 31a of the first flange 31 and screwing the nut 54 from the outside of the first flange 31. is doing.
  • the shoulder bolt 50 is coupled to the first flange 31 and the second flange 32 in this manner, so that the inner surfaces of the first flange 31 and the second flange 32 abut on the shoulder portion 51 of the shoulder bolt 50.
  • the position is restricted.
  • the first flange 31 and the second flange 32 are firmly connected and integrated with each other in a state where a space slightly larger than the axial dimension of the rotor core 40 is secured between the inner surfaces of the flanges 31 and 32.
  • the shoulder bolt 50 is also made of a non-magnetic material in order to reduce eddy current loss.
  • a wave washer 80 is interposed between the shoulder portion 51 on the second flange 32 side and the side surface of the rotor core 40.
  • the wave washer 80 positions the rotor core 40 so that it does not rattle in the axial direction. Yes.
  • washers 55 are sandwiched between the contact surface of the shoulder portion 51 on the first flange 31 side and the contact surface of the first flange 31 and between the contact surface of the nut 54 and the first flange 31, respectively.
  • the torque transmission pin 60 is press-fitted into a through hole 41 a formed in the magnetic part 41 of the rotor core 40, and both ends protrude from both end surfaces of the rotor core 40.
  • the rotor core 40 is composed of a laminate of a large number of electromagnetic steel sheets
  • the torque transmission pin 60 is press-fitted into the magnetic part 41, so that the rotor core 40 is positioned mutually in the circumferential direction and the radial direction, and the whole They are joined together. Therefore, the electromagnetic steel sheets constituting the laminate may be bonded by caulking or bonding, and even if the bonding by caulking or bonding is omitted, the electromagnetic steel sheets can be prevented from being scattered.
  • each torque transmission pin 60 Both ends of each torque transmission pin 60 are fitted to a rectangular piece-like slider 65 when viewed from the front, and each slider 65 is radially formed on the inner surface of the outer peripheral portion of the first flange 31 and the second flange 32. It is possible to slide in the radial direction (in the direction of arrow A in FIG. 7B) by being engaged with the engaging grooves 39 formed along the guide grooves and guided to the opposite side surfaces of the engaging grooves 39 parallel to each other. ing.
  • the center line in the width direction of the engagement groove 39 is a radial line passing through the axial center of the outer rotor 30, and the opposite side surface of the engagement groove 39 is parallel to the center line in the width direction of the engagement groove 39. Is formed.
  • the opposing side surface that slides on the opposing side surface of the engagement groove 39 of the rectangular piece-shaped slider 65 is formed to be parallel to the center line in the width direction of the engagement groove 39.
  • a vibration absorbing mechanism that absorbs (vibration) is configured.
  • radial force such as centrifugal force accompanying rotation and magnetic force acting between the stator 10 and the inner rotor 20 acts on the rotor core 40. Due to the action of the radial force, a relative displacement in the radial direction is generated between the flanges 31 and 32 and the rotor core 40 due to factors such as a difference in material and a difference in shape. When this relative displacement is suppressed by rigidly connecting the flanges 31 and 32 and the rotor core 40, a large stress is generated in the rotor core 40 and the magnetic characteristics are impaired.
  • a vibration absorbing mechanism including the slider 65 and the engagement groove 39 is provided between the flanges 31 and 32 and the rotor core 40. It has been.
  • the combination of the slider 65 and the engagement groove 39 serves to transmit the circumferential torque transmitted from the rotor core 40 to the torque transmission pin 60 to the flanges 31 and 32.
  • Torque transmitted to the torque transmission pin 60 is transmitted to the slider 65, and is transmitted from the slider 65 to the flanges 31 and 32 through the opposing side surfaces of the engagement groove 39.
  • the surface that contributes to the transmission of force is a contact surface between the opposed side surface of the slider 65 and the opposed side surface of the engagement groove 39.
  • the rotor core 40 can be positioned in the X direction and the Y direction orthogonal to each other.
  • the inner rotor 20 includes a rotor body 21 that is formed in a cylindrical shape, an inner rotor shaft 25 that is fixed through the hub 21 a of the rotor body 21, and a laminated steel plate. 21 and an annular rotor core 22 disposed on the outer peripheral portion.
  • 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 has magnetism due to 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.
  • the rotor core 40 of the outer rotor 30 is configured by a laminated body of integral annular electromagnetic steel plates, the structure of the rotor core 40 is simplified and assembly is easy. At the same time, the centrifugal rigidity against the centrifugal force of the second rotor can be improved. In addition, the torque generated in the rotor core 40 can be reliably transmitted to both the flanges 31 and 32 by the torque transmission pin 60 disposed between the first and second flanges 31 and 32.
  • first flange 31 and the second flange 32 positioned on both sides of the rotor core 40 are interconnected with shoulder bolts 50 so as to maintain a constant distance between the flanges 31 and 32. It is possible to suppress the action of force, and as a result, it is possible to prevent the magnetic characteristics of the rotor core 40 from being deteriorated and to improve the motor characteristics. Further, since the shoulder bolt 50 does not tighten the rotor core 40 made of a laminate by using an axial force, the fastening force can be maintained without being affected by a decrease in the bolt axial force due to the familiarity of the laminate.
  • the shoulder bolt 50 penetrates the space portion 42 of the rotor core 40 formed in an integral annular shape, the space portion 42 can be effectively used without adversely affecting the magnetic portion 41 as the induction magnetic pole of the rotor core 40.
  • the first flange 31 and the second flange 32 can be firmly connected to provide integrity.
  • the wave washer 80 is interposed between the rotor core 40 of the outer rotor 30 and any one of the flanges 31 and 32, a large axial force for fastening is not applied to the rotor core 40, while the rotor core 40 is bent in the axial direction. It can be positioned so as not to connect.
  • the torque transmission pin 60 is penetrated through the magnetic portion 41 of the rotor core 40 of the outer rotor 30, the radial direction and circumferential positioning of the laminated body constituting the rotor core 40 can be performed by the torque transmission pin 60.
  • the torque transmission pin 60 can prevent the electromagnetic steel plates constituting the laminate from being scattered.
  • the magnetic steel sheets constituting the rotor core 40 are generally insulated from each other in contact with each other, eddy current cannot flow in the magnetic part 41 in the axial direction, but the shoulder bolt 50 and the torque transmission pin 60 Passes through the rotor core 40, there is a possibility that an eddy current flows along a route passing through the rotor core 40. Therefore, by disposing the shoulder bolt 50 and the torque transmission pin 60 at a specific circumferential pitch at which eddy current does not flow (or hardly flows), loss due to the eddy current loop can be greatly reduced. Of course, the route through which the loop current flows may be cut off by insulation.
  • the axial positioning of the rotor core 40 is performed by the wave washer 80.
  • the screw pin 91 is formed on one flange 32. It is possible to screw into the screw hole 92 and press the end face of the rotor core 40 with the tip of the screw pin 91.
  • a plurality of shims 93 having different thicknesses are prepared so as to fill a gap between the rotor core 40 and the flanges 31 and 32, and the shim 93 is attached to one flange. 32 and the end face of the rotor core 40 may be interposed.
  • a spring 94 may be interposed between the rotor core 40 and any of the flanges 31 and 32.
  • a spring seat 94a attached with a spring body 94b can be used as the spring 94.
  • the spring 94 it is possible to prevent fretting due to vibration of the rotor core 40 or the like.
  • a plurality of screw pins 91, shims 93, and springs 94 are preferably arranged at a constant pitch in the circumferential direction of the outer rotor 30.
  • Second Embodiment 15 to 18 are views showing an electric motor as a rotating electric machine according to the second embodiment. This electric motor differs from the first embodiment in the structure of the outer rotor 30.
  • the outer rotor 30 includes a rotor core 40, first and second flanges 31, 32, a shoulder bolt 50, and a torque transmission pin 60 that are different from the first embodiment in that the magnetic portion 41 does not have a through hole 41a.
  • the torque transmission pin 60 is provided so as to penetrate the space portion 42, and both ends thereof are inserted into insertion holes 31 h and 32 h formed in the flanges 31 and 32. Note that both ends of the torque transmission pin 60 inserted into the flanges 31 and 32 are subjected to ceramic spraying in order to ensure insulation from the flanges 31 and 32.
  • the outer peripheral surface of the torque transmission pin 60 that penetrates the space portion 42 of the rotor core 40 and the space portion 42.
  • An elastic member 62 such as rubber is disposed between the inner peripheral surface.
  • the elastic member 62 may be bonded to the space portion 42 of the rotor core 40 after being baked on the torque transmission pin 60, or may be press-fitted into the space portion 42.
  • the elastic member 62 and the torque transmission pin 60 may be assembled by bonding instead of being baked, and the elastic member 62 may be baked on the space 42 of the rotor core 40.
  • the elastic member 62 serves to absorb the relative displacement in the radial direction of the outer rotor 30 between the rotor core 40 and the torque transmission pin 60 inserted into the flanges 31 and 32.
  • a nonmagnetic ring 82 is interposed between the coupling surfaces of the rotor core 40 and the flanges 31 and 32.
  • the nonmagnetic ring 82 is provided with through holes 83 and 84 for the torque transmission pin 60 and the shoulder bolt 50.
  • the rotor core 40 can be easily assembled as compared with the case where the torque transmission pin 60 is press-fitted into the magnetic portion 41 of the rotor core 40. it can. Further, the magnetic path area of the magnetic part 41 is not reduced by the torque transmission pin 60.
  • an elastic member 62 that absorbs relative displacement between the rotor core 40 and the torque transmission pin 60 in the radial direction of the outer rotor 30 is provided between the torque transmission pin 60 that penetrates the space 42 of the rotor core 40 and the rotor core 40. Since they are arranged, the radial vibration generated in the rotor core 40 can be absorbed by the elastic member 62, and the transmission of the vibration to the flanges 31 and 32 can be suppressed.
  • the wave washer 80, the screw pin 91, and the shim are formed in the space between the rotor core 40 and any of the flanges 31 and 32 generated when the shoulder bolt 50 is fastened.
  • the rotor core 40 may be positioned in the axial direction by providing pressure contact members such as 93 and springs 94.
  • 19 and 20 are views showing an electric motor as a rotating electrical machine of the third embodiment.
  • the shoulder bolt 50 in the second embodiment is omitted.
  • the shoulder bolt 50 plays a role of fastening the first flange 31 and the second flange 32, and both ends of the torque transmission pin 60 are press-fitted into both the flanges 31, 32, so Since 31 and 32 can be connected together, the shoulder bolt 50 can be eliminated.
  • the shoulder bolt 50 is omitted, and both ends of the torque transmission pin 60 are press-fitted into the flanges 31 and 32, so that the rotor core 40 and the flanges 31 and 32 are axially connected via the nonmagnetic ring 82. Therefore, it is not necessary to provide a pressure contact member.
  • the shoulder bolt 50 is omitted, and both ends of the torque transmission pin 60 are inserted into the flanges 31 and 32, so that the rotor core 40 and the flanges 31 and 32 are connected to each other via the nonmagnetic ring 82.
  • the axial force management of the torque transmission pin 60 can be eliminated by press-contacting in the axial direction with a bearing or the like that is positioned in the direction and disposed outside the both flanges 31 and 32 in the axial direction. If the vibration absorbing function described above is not expected, the torque transmission pin 60 may be press-fitted and fixed to the magnetic portion 41 of the rotor core 40 and may be press-fitted and fixed to the first and second flanges 31 and 32. In such a case, the number of shoulder bolts 50 connecting the flanges 31 and 32 can be reduced, or the shoulder bolts 50 can be omitted as in the present embodiment.
  • 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.
  • 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

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

Abstract

Selon l'invention, un rotor externe (30) composant une rangée de pôles de magnétisme induit et disposé entre un stator et un rotor interne, possède : un noyau de rotor (40) de forme cylindrique; et une première bride (31) ainsi qu'une seconde bride (32) aux deux extrémités de ce noyau de rotor (40). Le noyau de rotor (40) se compose d'un corps stratifié dans lequel une feuille d'acier magnétique de forme circulaire d'un seul tenant est stratifiée dans la direction de l'axe, et possède une pluralité de parties raccordement (43) qui raccordent individuellement des parties magnétiques (41) adjacentes entre elles. En outre, une broche de transmission de couple (60) destinée à la transmission d'un couple généré par le noyau de rotor (40), est disposée entre la première bride (31) et la seconde bride (32). Par conséquent, les propriétés de montage sont améliorées du fait d'une simplification d'un second rotor équipé de la rangée de pôles de magnétisme induit.
PCT/JP2011/079427 2010-12-24 2011-12-19 Machine électrique tournante WO2012086614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-287538 2010-12-24
JP2010287538 2010-12-24

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WO2012086614A1 true WO2012086614A1 (fr) 2012-06-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019072447A1 (fr) * 2017-10-11 2019-04-18 Baumüller Nürnberg GmbH Rotor d'une machine électrique
CN112436621A (zh) * 2019-08-26 2021-03-02 东芝三菱电机产业系统株式会社 定子扭矩传递构造、电动机驱动系统及定子扭矩传递构造的组装方法
CN112436622A (zh) * 2019-08-26 2021-03-02 东芝三菱电机产业系统株式会社 定子扭矩传递构造及其组装/分解方法、定子扭矩传递构造的分解夹具及电动机驱动系统

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019072447A1 (fr) * 2017-10-11 2019-04-18 Baumüller Nürnberg GmbH Rotor d'une machine électrique
US11296564B2 (en) 2017-10-11 2022-04-05 Baumueller Nuernberg Gmbh Rotor of an electric machine
CN112436621A (zh) * 2019-08-26 2021-03-02 东芝三菱电机产业系统株式会社 定子扭矩传递构造、电动机驱动系统及定子扭矩传递构造的组装方法
CN112436622A (zh) * 2019-08-26 2021-03-02 东芝三菱电机产业系统株式会社 定子扭矩传递构造及其组装/分解方法、定子扭矩传递构造的分解夹具及电动机驱动系统
CN112436621B (zh) * 2019-08-26 2023-11-03 东芝三菱电机产业系统株式会社 定子扭矩传递构造、电动机驱动系统及定子扭矩传递构造的组装方法

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