WO2012160841A1 - Machine électrique rotative de type aimant permanent - Google Patents

Machine électrique rotative de type aimant permanent Download PDF

Info

Publication number
WO2012160841A1
WO2012160841A1 PCT/JP2012/051342 JP2012051342W WO2012160841A1 WO 2012160841 A1 WO2012160841 A1 WO 2012160841A1 JP 2012051342 W JP2012051342 W JP 2012051342W WO 2012160841 A1 WO2012160841 A1 WO 2012160841A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
cores
divided
teeth
iron core
Prior art date
Application number
PCT/JP2012/051342
Other languages
English (en)
Japanese (ja)
Inventor
信一 山口
詠吾 十時
敏則 田中
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201280019610.5A priority Critical patent/CN103493338B/zh
Priority to JP2013516224A priority patent/JP5791713B2/ja
Publication of WO2012160841A1 publication Critical patent/WO2012160841A1/fr

Links

Images

Classifications

    • 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
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H02K41/033—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type with armature and magnets on one member, the other member being a flux distributor

Definitions

  • the present invention relates to a permanent magnet type rotating electrical machine, and more particularly to a motor miniaturization by improving torque density and a method for manufacturing a stator of a permanent magnet type rotating electrical machine.
  • the present invention also relates to a permanent magnet linear motor and a method for manufacturing the movable element.
  • Rotating electrical machines such as industrial and in-vehicle motors are required to be smaller, faster, and wider in the operating speed range.
  • a motor that meets these requirements, there has been proposed a motor having a simple and robust rotor structure and a structure using armature windings and permanent magnets on the stator side.
  • motors with magnets embedded near the center of the teeth portion have been proposed in order to expand the operating speed range, i.e. to reduce armature inductance (for example, (See Patent Documents 1 to 3).
  • Patent Documents 2 and 3 the teeth are divided into two and the stator is formed using a U-shaped (or U-shaped) iron core.
  • the space factor of the winding cannot be improved and the torque density is lowered, and the slot opening width cannot be reduced, resulting in an increase in cogging torque.
  • the present invention has been made to solve the above-described problems, and in a motor capable of high-speed rotation, a permanent magnet type rotating electrical machine and its permanent magnet that can achieve high torque, low cogging torque, and the like. It aims at providing the manufacturing method of the stator of a rotary electric machine. Another object of the present invention is to provide a permanent magnet linear motor and a method of manufacturing a mover of the permanent magnet linear motor related thereto.
  • a plurality of divided iron cores each having a tooth facing the rotor are circumferentially adjacent to each other so that the divided iron cores can rotate around a common axis in the rotation axis direction of the permanent magnet type rotating electric machine.
  • a permanent magnet or a magnetic member is provided at a substantially central portion of the teeth of each of the divided iron cores, and each of the divided iron cores has an iron core on the opposite side to the radial rotor of the central portion of the teeth.
  • a permanent magnet type rotating electrical machine or the like having a magnetic structure with increased magnetic resistance in either a thin shape or a structure without an iron core.
  • the magnetic structure is such that the magnetic resistance on the radial counter-rotor side in the center of the teeth is increased, the short-circuit magnetic flux on the radial counter-rotor side of the permanent magnet is reduced, and the torque density is reduced. Can be improved. Moreover, by making the adjacent teeth into a connected structure, the workability of the winding is improved, a high-density winding is realized, and the cogging torque can be reduced.
  • Embodiment 1 of this invention It is sectional drawing of the permanent magnet type rotary electric machine by Embodiment 1 of this invention. It is sectional drawing of the stator core in Embodiment 1 of this invention. It is a partial cross section figure of the stator core in Embodiment 1 of this invention. It is a figure which shows the one part perspective view of the stator core in Embodiment 1 of this invention, and the lamination
  • Embodiment 1 of this invention It is a partial cross section figure of the stator core in Embodiment 1 of this invention. It is a partial cross section figure of the stator core in Embodiment 1 of this invention. It is a partial cross section figure of the stator core in Embodiment 1 of this invention. It is a figure for demonstrating the manufacturing method of the stator by Embodiment 1 of this invention (at the time of permanent magnet mounting
  • FIG. 1 is a cross-sectional view of a permanent magnet type rotating electrical machine according to Embodiment 1 of the present invention (a cross-sectional view of a plane orthogonal to the rotating shaft of the rotating electrical machine).
  • the figure shows a rotating electrical machine having 10 rotor salient poles, 12 stator teeth and 12 magnets.
  • 20 is a stator
  • 21 is a stator core obtained by dividing the stator 20 into a plurality of divided cores 21a
  • 22 is a tooth provided on each divided core 21a
  • 23 is a permanent magnet provided on the tooth
  • 24 Is a winding applied to the teeth
  • 25 is a caulking that is uneven in a direction perpendicular to the paper surface of the drawing (a stacking direction of iron core plates described later or a rotation axis direction of a rotating electrical machine).
  • the split iron core 21a is a split iron core in which the teeth are divided into two.
  • the caulking 25 (for example, circular caulking) connects the circumferentially adjacent divided cores 21a so as to be rotatable about a common axis (caulking 25) in a direction perpendicular to the paper surface (rotating axis direction of the permanent magnet type rotating electric machine).
  • the permanent magnet 23 is disposed at a substantially central portion or center of the tooth 22 with respect to the tooth 22 and is magnetized in a substantially circumferential direction or circumferential direction, and the magnetization directions of the permanent magnets adjacent in the circumferential direction are opposite to each other in the circumferential direction. It is installed so that it faces. Further, the winding 24 is applied to all teeth.
  • FIG. 2 is a view showing only the stator core 21
  • FIG. 3 is a cross-sectional view showing only a part of the stator core (a connecting half-piece split core 21 bb described later) ((a) and (b) are aligned left and right).
  • 4A is a perspective view showing only a part of the stator core (connected half-piece divided core 21bb), and FIG.
  • the stator core 21 is composed of divided cores 21a (here, twelve), and is connected rotatably by the concavo-convex shape of the caulking 25.
  • FIG. 4 (b) an articulated structure that can be freely opened and closed by alternately stacking iron core plates in which the left and right combinations are connected in reverse is crimped.
  • a convex portion (convex shape) 26 protruding in the circumferential direction was provided on the outer peripheral side (the side opposite to the radial rotor) of the arrangement surface of the permanent magnet 23. This is necessary for positioning the permanent magnet 23 and increasing the torque, and the reason will be described below.
  • the simulation of the generated torque was performed using the thickness t of the stator core on the outer periphery shown in FIG. 5 as a parameter.
  • a simulation result of the generated torque is shown in FIG.
  • the horizontal axis in FIG. 6 is the ratio of the thickness t of the outer peripheral core to the thickness of the electromagnetic steel sheet (iron core plate), and the vertical axis represents the torque ratio when the thickness of the outer peripheral core is zero.
  • FIG. 6 shows that the smaller the thickness t of the outer peripheral iron core, the larger the torque ratio. This is because a short-circuit magnetic flux is generated in the outer peripheral portion of the permanent magnet if the iron core is present in the outer peripheral portion of the stator core, thereby causing a reduction in torque.
  • the magnetic resistance of the outer peripheral portion of the stator core permanent magnet arrangement surface is increased as much as possible, and the outer peripheral side has a convex shape (convex portion 26) for positioning the permanent magnet.
  • the thickness ratio of an outer peripheral side iron core needs to be about 1.5 or less.
  • convex portions (convex shape) 27 projecting in the circumferential direction on both inner sides of the teeth 22 on the inner peripheral side (rotor side permanent magnet side) and both outer sides on the inner peripheral side (rotation) Protrusions (convex shapes) 28 projecting in the circumferential direction were provided on the side opposite to the permanent magnet on the child side, that is, on the winding side.
  • the convex portion 27 is for the purpose of positioning the permanent magnet and reducing the cogging torque
  • the convex portion 28 has a convex shape for reducing the cogging torque.
  • the details of the shape of the convex portions 27 and 28 on the inner peripheral side (rotor side) of the tooth 22 are determined by optimization considering cogging torque reduction, torque improvement, and the like.
  • each of the split cores 21a of the stator core 21 shown in FIG. 1 is composed of two half-piece split cores divided into two along the radial direction at the center or center of the tooth 22 in the circumferential direction.
  • the split iron core is fixed so as to sandwich the permanent magnet 23 between the teeth. 7, 8, and 9, the side ends of the half-piece divided iron core (core block) used in the first embodiment of the present invention and the adjacent half-piece divided iron cores of the adjacent divided iron cores are arranged around a common axis in the stacking direction.
  • FIG. 8 is a cross-sectional view of a connected half-piece split core 21bb in which side ends of adjacent half-piece split cores 21b are connected by caulking 25 so as to be rotatable around a common axis in the stacking direction.
  • segmentation iron core 21bb is connected is shown.
  • the terminal half piece split iron cores 21c and 21d have a concave portion and a convex portion which are fitted to each other at the side ends.
  • each adjacent connecting half-piece split iron core 21bb is fixed by sandwiching the permanent magnet 23 between the outer sides on the center side of the teeth as shown in FIG.
  • a plurality of connected half-piece divided iron cores 21bb are connected, and the permanent magnets 23 are sandwiched between the connected half-piece divided iron cores 21bb on both sides at the center side of the teeth at both ends.
  • the terminal half piece split iron cores 21c and 21d are connected.
  • the permanent magnet 23 and the iron cores 21bb, 21c, 21d are fixed (fixed) using the magnetic attractive force or adhesive of the permanent magnet 23 (the same applies hereinafter).
  • FIG. 11 shows a cross-sectional view after fixing the permanent magnet 23 and the iron cores 21bb, 21c, and 21d.
  • the iron cores 21bb, 21c, and 21d (stator iron cores) connected using the joint-type structure of the connecting half-piece divided iron core 21bb shown in FIG. 8 are set in a reverse warped state as shown in FIG.
  • the winding 24 is wound using a winding machine (not shown) in a state in which is opened.
  • the density of the winding can be increased by setting the reverse warping state.
  • FIG. 13 shows a cross-sectional shape when the stator after winding is made linear.
  • the stator of the rotating electric machine shown in FIG. 1 can be manufactured.
  • FIG. 14 is a cross-sectional view of a stator of a permanent magnet type rotating electrical machine according to Embodiment 2 of the present invention
  • FIG. 15 is a view of the outer peripheral side of the stator from a direction orthogonal to the rotation axis direction of the permanent magnet type rotating electrical machine.
  • FIG. The divided cores 21a and 21aa in the description of this embodiment correspond to the core plate (see FIG. 4) of the first embodiment.
  • a layer of a split iron core 21aa (related to FIGS. 32-34) configured such that the iron core on the side opposite to the radial rotor at the center of the teeth shown in FIG.
  • the layer of the split core 21a (same as FIG.
  • the divided cores adjacent to each other in the circumferential direction are connected so as to be rotatable around the rotation axis direction of the rotating electrical machine, so that the inner peripheral shape of the divided core is substantially after winding.
  • it is deformed to have a circular shape or a circular shape, it is important to ensure the roundness of the inner peripheral shape at this time. This is because when the roundness deteriorates, cogging torque and torque ripple corresponding to the roundness failure occur, causing vibration and noise.
  • the split core structure is changed at the end portion and the center portion in the stacking direction, but the same effect can be obtained by alternately stacking in the stacking direction as shown in FIG. Obtainable.
  • the features of this structure can also be applied to the configuration of another embodiment of the present invention.
  • a permanent magnet a neodymium sintered magnet having a strong magnetic force can be naturally obtained by a ferrite magnet having a weak magnetic force.
  • FIG. 16 and 17 are sectional views of a stator core of a permanent magnet type rotating electric machine according to Embodiment 3 of the present invention.
  • FIG. 16 is an overall view of the stator core
  • FIG. 17 is a view when the stator is linearly formed after the magnet is mounted.
  • the fixing in the stacking direction of the divided cores 21a is performed only by bonding or the concavo-convex portions of the caulking 25 of the connecting portion.
  • 22 portions of the teeth are used for improving the fixing strength.
  • a caulking 25a is provided on the surface.
  • FIG. 18 is a sectional view of a permanent magnet type rotating electrical machine according to Embodiment 4 of the present invention.
  • the winding 24 is applied to half of the teeth so that the teeth with and without the windings are alternated. Therefore, the number of the divided cores 21a and the connecting half-piece divided cores 21bb is, for example, an even number of 4 or more, or an even number of 6 or more in the case of three-phase driving.
  • FIG. 19 is a diagram showing only the stator core, and has an articulated structure as in the first embodiment. In this embodiment, the number of windings is halved compared to the first embodiment, and the cost can be reduced because it is configured by only the connecting half-piece split iron core 21bb shown in FIG.
  • FIG. 8 shows a cross-sectional view after fixing the permanent magnet 23 and the connecting half-piece divided iron core 21bb.
  • FIG. 22 shows a cross-sectional shape when the stator after winding is made linear.
  • the inner peripheral shape of the stator of FIG. 22 is deformed so as to be a substantially circular shape or a circular shape, and the connecting half piece split iron core 21bb at both ends is fixed by a permanent magnet 23.
  • a stator can be manufactured.
  • FIG. 23 and 24 are sectional views of a stator core of a permanent magnet type rotating electric machine according to Embodiment 5 of the present invention.
  • FIG. 23 is an overall view of the stator core
  • FIG. 24 shows one connecting half-piece split core 21bb.
  • the connected half-piece split core 21bb is connected to the half-piece split core 21b of the split core adjacent to the half-piece split core 21b by a plastic deformation portion 41 including a cutout portion 41a and a thin portion 41b.
  • the plastic deformation portion 41 is provided between the divided iron cores, that is, between the teeth.
  • the manufacturing method is the same as in the first to fourth embodiments, but a plurality of connecting half-piece divided iron cores 21bb shown in FIG. 24 are prepared, connected with a permanent magnet 23 interposed therebetween, and then wound. Then, the plastic deformation part 41 of each connection half piece division
  • segmentation iron cores by providing the plastic deformation part 41 between half piece division
  • FIG. 25 and 26 are sectional views of a stator core of a permanent magnet type rotating electric machine according to Embodiment 6 of the present invention.
  • FIG. 25 is an overall view of the stator core
  • FIG. 26 shows one connecting half-piece split core 21bb.
  • the connection half piece split iron core 21bb of this embodiment the convex portions 28 on both outer sides (rotor side winding side) of the teeth 22 in the first embodiment are eliminated. .
  • the winding 24 is applied to the reel 29 made of the nonmagnetic material shown in FIG. 27, and then the wound reel 29 can be directly inserted into the teeth 22 as shown in FIG. Become. This improves the productivity of the rotating electrical machine and enables high-density winding.
  • FIG. 29 and 30 are sectional views of a stator core of a permanent magnet type rotating electric machine according to Embodiment 7 of the present invention.
  • FIG. 29 is an overall view of the stator core
  • FIG. 30 shows one connecting half-piece split core 21bb.
  • the convex portions 27 on both inner inner sides (the permanent magnet side on the rotor side) of the teeth 22 in the first embodiment both outer sides on the inner peripheral side.
  • the protrusion 28 on the side opposite to the permanent magnet on the rotor side (that is, the winding side) and the protrusion 26 on the outer peripheral side (opposite side of the rotor) on the surface of the permanent magnet are eliminated.
  • the wound winding frame 29 shown in FIG. 27 can be used, the amount of magnets can be increased, and the torque density can be improved.
  • FIG. 31 is a cross-sectional view of a stator core of a permanent magnet type rotating electric machine according to Embodiment 8 of the present invention.
  • This embodiment is related to the stator iron core of FIG. 14A of the second embodiment, and each divided iron core 21aa is fitted with a permanent magnet (not shown) in a slit 21e formed in the tooth 22.
  • the iron core on the side opposite to the radial rotor at the center of the teeth 22 is formed into a thin-walled portion 21f by a slit 21e.
  • the thickness of the thin-walled portion 21f is 1.5 times or less of the thickness of the iron core plate laminated to form the split iron core 21a (to limit the range). For example, 1.5 times or less to 0 times or more).
  • FIG. 32 is a cross-sectional view of a stator of a permanent magnet type rotating electric machine according to Embodiment 9 of the present invention.
  • FIG. 33 is an overall view of the stator core of the stator of FIG. 32, and FIG. 33 is a view showing a connecting half-piece divided core that is a unit unit when the stator is manufactured.
  • the adjacent divided iron cores are divided iron cores 21a in which the teeth are divided into two, and the divided iron cores 21aa in which the teeth are not divided are connected.
  • the split iron core 21a into which the teeth according to the first embodiment and the like are divided is composed of two half-piece split cores 21b divided into two along the radial direction at the center of the teeth, and the two half-piece split iron cores 21b are teeth.
  • the permanent magnets 23 are fixed to each other on the center side.
  • the non-divided divided iron core 21aa according to the eighth embodiment the permanent magnet 23 is fitted in the slit 21e formed in the tooth 22, and the iron core on the opposite side to the radial rotor at the center of the tooth 22 is formed by the slit 21e.
  • the thin portion 21f is formed.
  • Each of the divided iron cores 21 a and 21 aa is connected by a joint type structure by caulking 25.
  • connection half piece split iron core 21bb which is the iron core for 2 teeth shown in FIG. 34 constitutes the non-divided split iron core 21aa constituting the first iron core and the second iron core connected to both sides of the divided iron core 21aa. It consists of a half-piece divided iron core 21b.
  • the connecting half-piece split iron core 21bb is formed by stacking the core plates for forming the split iron core 21aa (first iron core) and the half-piece split iron cores 21b (second iron core) on both sides for each connecting half-piece split iron core 21bb. And while being laminated, the split iron core 21aa and the half-piece split iron core 21b side ends on both sides are connected by caulking 25 so as to be rotatable around a common axis in the stacking direction.
  • each permanent magnet 23 and each connected half-piece divided iron core 21bb are fixed.
  • the magnetic attractive force of the permanent magnet 23 or an adhesive is used.
  • the permanent magnet 23 is attached to the slit 21e of the split iron core 21aa by insertion from the rotating shaft direction of the rotating electric machine, and the permanent magnet 23 is inserted between the connecting half piece split iron cores 21bb on the teeth side surface (the rotating shaft of the rotating electric machine). And the direction that goes straight.
  • positioning is performed by using a convex portion provided on the tooth 22.
  • FIG. 36 shows the stator in a connected state after the permanent magnet 23 and the connecting half-piece split iron core 21bb are fixed.
  • the iron core is placed in a reverse warped state (a state where adjacent teeth are opened), and windings similar to those in the fourth embodiment are applied.
  • the stator core after winding is completed that is, a plurality of connected half-piece divided cores 21bb are deformed into a substantially circular shape or a circular shape, and both ends are connected by permanent magnets 23, whereby the rotating electric machine according to this embodiment is connected.
  • a stator can be manufactured.
  • the number of divisions of the iron core is 1 ⁇ 2 compared to the fourth embodiment, and the number of core blocks to be used, that is, the connecting half-piece divided iron core 21bb is also halved. Man-hours can be greatly reduced.
  • a magnetic member before being magnetized may be used instead of the permanent magnet of each of the above embodiments.
  • an adhesive or the like is used for fixing between the iron cores.
  • This embodiment is also related to the second embodiment.
  • the divided iron core 21a in which the teeth are divided into two and the non-divided divided iron core 21aa are arranged separately in the layers at the time of lamination.
  • the divided core 21a in which the teeth are divided into two in one layer and the non-divided divided core 21aa are mixed.
  • the divided core 21a in which the teeth are divided into two and the non-divided divided core 21aa are arranged in the circumferential direction and the stacking direction of each layer according to the required conditions, so that the iron core can be balanced with a desired balance It is possible to ensure the roundness of the inner circumference and improve the torque.
  • FIG. 37 and 38 are schematic cross-sectional views of a permanent magnet linear motor according to Embodiment 10 of the present invention.
  • This permanent magnet type linear motor is obtained by applying the structure of the stator of the permanent magnet type rotating electric machine of each of the above-described embodiments and the manufacturing method thereof to the mover. However, the step of deforming the stator core into a circular shape and connecting both ends is excluded.
  • the permanent magnet type linear motor shown in FIGS. 37 and 38 is the case where the number of teeth of the mover 200 is 6, and the number of salient poles of the stator 300 is 5, and FIG. 37 has windings 240 applied to all the teeth.
  • FIG. 37 has windings 240 applied to all the teeth.
  • the movable element 200 is a permanent magnet type linear motor that moves along the opposed stator 300, and the movable core 210 of the movable element 200 is moved by a plurality of divided iron cores 210 a each having teeth facing the stator 300.
  • the segmented iron cores adjacent to each other are connected to each other, and a permanent magnet or a magnetic member (230) is provided at substantially the center of the teeth of each segmented iron core 210a.
  • Each segmented iron core 210a is arranged in the opposite direction of the center of the teeth. It has a magnetic structure in which the iron core on the side opposite to the stator 300 is at least one of a thin shape and a structure without the iron core to increase the magnetic resistance (FIGS. 37 and 38 show only the structure without the iron core. ).
  • Each split core 210a of the mover 200 may have the same configuration as the split core of the stator of each of the above embodiments.
  • the mover 200 is configured by first having teeth facing the stator 300 and being connected in the moving direction.
  • the half-piece divided iron core plates constituting the half-piece divided iron core divided into two along the opposing direction at the center of the teeth of the divided iron cores of the plurality of divided iron cores 210a are connected to the divided iron cores adjacent to each other in the moving direction.
  • Laminate each half-piece split core and stack the side edges of adjacent half-piece split cores in the stacking direction (perpendicular to the moving direction of the mover in the plane parallel to the surface facing the stator) ) are connected so as to be rotatable around a common axis, thereby forming a plurality of connected half-piece split iron cores.
  • a plurality of connected half-piece divided cores are formed so as to form a mover tooth with a permanent magnet or a magnetic member 230 sandwiched between the outsides of adjacent adjacent linked half-piece divided cores (between the connected half-piece divided cores). Connect. Then, winding (240) is performed on the teeth with a plurality of connected half-piece divided cores being connected with the adjacent teeth open.
  • mover 200 manufactures the needle
  • the winding may be applied to all the teeth, or there may be a tooth that has been wound and a tooth that has not been wound.
  • the manufacturing method of the permanent magnet type rotary electric machine, permanent magnet type linear motor and their stator or mover according to the present invention can be applied to permanent magnet type rotary electric machines and permanent magnet type linear motors in various fields.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Synchronous Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Linear Motors (AREA)

Abstract

L'invention concerne une machine électrique rotative de type aimant permanent dans laquelle un stator (20) est configuré de sorte qu'une pluralité de noyaux fendus (21a, 21aa) ayant chacun des dents (22) faisant face à un rotor (30) sont joints de sorte que les noyaux fendus adjacents entre eux dans la direction circonférentielle sont capables de tourner autour d'un axe commun dans la direction de l'axe de rotation de la machine électrique rotative de type aimant permanent, un aimant permanent ou un élément magnétique (23) est disposé dans une partie sensiblement centrale des dents des noyaux fendus, et chacun des noyaux fendus a une structure aimant de magnétorésistance accrue dans laquelle le noyau du côté opposé du rotor dans la direction radiale de la partie centrale des dents a une forme mince ou est éliminé.
PCT/JP2012/051342 2011-05-23 2012-01-23 Machine électrique rotative de type aimant permanent WO2012160841A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280019610.5A CN103493338B (zh) 2011-05-23 2012-01-23 永磁铁式旋转电机
JP2013516224A JP5791713B2 (ja) 2011-05-23 2012-01-23 永久磁石式回転電機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-114603 2011-05-23
JP2011114603 2011-05-23

Publications (1)

Publication Number Publication Date
WO2012160841A1 true WO2012160841A1 (fr) 2012-11-29

Family

ID=47216930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/051342 WO2012160841A1 (fr) 2011-05-23 2012-01-23 Machine électrique rotative de type aimant permanent

Country Status (3)

Country Link
JP (2) JP5791713B2 (fr)
CN (1) CN103493338B (fr)
WO (1) WO2012160841A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106664000A (zh) * 2014-06-17 2017-05-10 埃龙能量私人有限公司 电磁装置
WO2018083898A1 (fr) * 2016-11-01 2018-05-11 三菱電機株式会社 Moteur
US20180367013A1 (en) * 2015-12-01 2018-12-20 Lg Innotek Co., Ltd. Motor and vehicle including same
JP2021112039A (ja) * 2020-01-10 2021-08-02 日本製鉄株式会社 ステータ及び渦電流式減速装置の製造方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104242501A (zh) * 2014-09-28 2014-12-24 河北工业大学 混合永磁体在磁通切换永磁电机中的应用方法
GB2549448A (en) * 2016-01-13 2017-10-25 Magnomatics Ltd A magnetically geared apparatus
WO2017169046A1 (fr) * 2016-03-29 2017-10-05 三菱電機株式会社 Moteur linéaire synchrone
WO2017216995A1 (fr) * 2016-06-17 2017-12-21 三菱電機株式会社 Machine synchrone à aimants permanents et procédé de fabrication d'un stator de machine synchrone à aimant permanent
JP2018207632A (ja) * 2017-06-01 2018-12-27 株式会社東芝 電動機
DE102018217211A1 (de) * 2018-10-09 2020-04-09 Siemens Aktiengesellschaft Drohne zur Auslösung von Seeminen mit elektrischem Antrieb
US20220085674A1 (en) * 2019-03-27 2022-03-17 Mitsubishi Electric Corporation Rotary electric machine
WO2020213971A1 (fr) 2019-04-18 2020-10-22 삼성전자주식회사 Moteur d'entraînement et aspirateur le comprenant
JP6780905B1 (ja) * 2019-07-12 2020-11-04 三菱電機株式会社 回転電機の積層鉄心製造方法及び積層鉄心製造装置
JP7368207B2 (ja) 2019-12-10 2023-10-24 三星電子株式会社 フラックススイッチングモータ、ファンモータ、およびスティック型の掃除機
CN113113982A (zh) * 2021-04-02 2021-07-13 南京师范大学 一种抑制永磁体退磁的磁通切换永磁电机结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002199679A (ja) * 2000-12-28 2002-07-12 Denso Corp 磁石装備電機子をもつ誘導子型電気機械
US20090091198A1 (en) * 2007-10-05 2009-04-09 Rolls-Royce Plc Flux-switching machine
WO2009144946A1 (fr) * 2008-05-30 2009-12-03 パナソニック株式会社 Système de commande de moteur synchrone
US20100072832A1 (en) * 2008-09-24 2010-03-25 Rolls-Royce Plc Flux-switching magnetic machine
JP2010081782A (ja) * 2008-08-25 2010-04-08 Suri-Ai:Kk スイッチドリラクタンスモータ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9009A (en) * 1852-06-08 Bat-trap
CN1707907A (zh) * 2004-06-09 2005-12-14 乐金电子(天津)电器有限公司 电动机的断开铁芯的连接结构
CN201188558Y (zh) * 2008-05-13 2009-01-28 东南大学 适于高速运行的磁通切换电机
CN201298801Y (zh) * 2008-09-09 2009-08-26 浙江大学 一种模块化容错型永磁开关磁链直线电机
CN201656740U (zh) * 2010-05-12 2010-11-24 东南大学 互补型磁通切换永磁直线电机及由其构成的电机模组
JP2013017374A (ja) * 2011-06-08 2013-01-24 Mitsubishi Electric Corp 回転電機
JP5644880B2 (ja) * 2013-02-19 2014-12-24 三菱電機株式会社 回転電機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002199679A (ja) * 2000-12-28 2002-07-12 Denso Corp 磁石装備電機子をもつ誘導子型電気機械
US20090091198A1 (en) * 2007-10-05 2009-04-09 Rolls-Royce Plc Flux-switching machine
WO2009144946A1 (fr) * 2008-05-30 2009-12-03 パナソニック株式会社 Système de commande de moteur synchrone
JP2010081782A (ja) * 2008-08-25 2010-04-08 Suri-Ai:Kk スイッチドリラクタンスモータ
US20100072832A1 (en) * 2008-09-24 2010-03-25 Rolls-Royce Plc Flux-switching magnetic machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106664000A (zh) * 2014-06-17 2017-05-10 埃龙能量私人有限公司 电磁装置
JP2017518730A (ja) * 2014-06-17 2017-07-06 ヘロン エナジー ピーティーイー リミテッド 電磁デバイス
US10063119B2 (en) 2014-06-17 2018-08-28 Heron Energy Pte Ltd Electromagnetic device
US20180367013A1 (en) * 2015-12-01 2018-12-20 Lg Innotek Co., Ltd. Motor and vehicle including same
WO2018083898A1 (fr) * 2016-11-01 2018-05-11 三菱電機株式会社 Moteur
JPWO2018083898A1 (ja) * 2016-11-01 2018-11-08 三菱電機株式会社 モータ
JP2021112039A (ja) * 2020-01-10 2021-08-02 日本製鉄株式会社 ステータ及び渦電流式減速装置の製造方法
JP7295432B2 (ja) 2020-01-10 2023-06-21 日本製鉄株式会社 ステータ及び渦電流式減速装置の製造方法

Also Published As

Publication number Publication date
JP2016007132A (ja) 2016-01-14
JP5975154B2 (ja) 2016-08-23
CN103493338B (zh) 2016-05-18
JPWO2012160841A1 (ja) 2014-07-31
JP5791713B2 (ja) 2015-10-07
CN103493338A (zh) 2014-01-01

Similar Documents

Publication Publication Date Title
JP5975154B2 (ja) 永久磁石式回転電機
JP5542423B2 (ja) 回転電機の回転子、および回転電機
JP5502571B2 (ja) 永久磁石式回転電機
US11088577B2 (en) Permanent magnet synchronous machine and method for manufacturing permanent magnet synchronous machine stator
WO2011114574A1 (fr) Moteur synchrone à aimant permanent
WO2012160692A1 (fr) Moteur à aimant permanent
WO2014038062A1 (fr) Moteur électrique à aimant permanent incorporé
JP5677622B2 (ja) 永久磁石式回転電機、及びその製造方法
JP6661939B2 (ja) ロータ
JP4687687B2 (ja) アキシャルギャップ型回転電機及び界磁子
JP2014155415A (ja) 磁石埋込型ロータ及び磁石埋込型ロータの製造方法
JP5066863B2 (ja) 回転電機
JP4984347B2 (ja) 電動機
WO2018008328A1 (fr) Stator de moteur, procédé de fabrication d'un stator de moteur, et moteur
WO2014175009A1 (fr) Moteur électrique à aimant permanent
US11594946B2 (en) Axial gap motor
WO2013111301A1 (fr) Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone
JP5041415B2 (ja) アキシャルギャップ型モータ
JP2012023879A (ja) 電機子用磁芯及び回転電機
JP5793948B2 (ja) 同期電動機
JP5309609B2 (ja) アキシャルギャップ型回転電機及び界磁子用コア
TW202406270A (zh) 轉子及具備該轉子的ipm馬達
WO2018230436A1 (fr) Machine électrique rotative
JP4872608B2 (ja) 磁石埋め込み型回転子
JP2013179765A (ja) 回転電気機械

Legal Events

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

Ref document number: 12789306

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2013516224

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12789306

Country of ref document: EP

Kind code of ref document: A1