WO2013111301A1 - Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone - Google Patents

Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone Download PDF

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Publication number
WO2013111301A1
WO2013111301A1 PCT/JP2012/051672 JP2012051672W WO2013111301A1 WO 2013111301 A1 WO2013111301 A1 WO 2013111301A1 JP 2012051672 W JP2012051672 W JP 2012051672W WO 2013111301 A1 WO2013111301 A1 WO 2013111301A1
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WO
WIPO (PCT)
Prior art keywords
permanent magnet
magnet
rotor
rotation axis
peripheral surface
Prior art date
Application number
PCT/JP2012/051672
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English (en)
Japanese (ja)
Inventor
松岡　篤
馬場　和彦
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 JP2013555060A priority Critical patent/JP6121914B2/ja
Priority to PCT/JP2012/051672 priority patent/WO2013111301A1/fr
Priority to CN201280067884.1A priority patent/CN104067483B/zh
Publication of WO2013111301A1 publication Critical patent/WO2013111301A1/fr

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    • 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
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets

Definitions

  • the present invention relates to a rotor of a synchronous motor, a manufacturing method thereof, and a synchronous motor.
  • rare earth magnets are very expensive materials, so in order to reduce the amount of use, they are often used in the form of as thin a wall as possible.
  • SPM Surface Permanent Magnet
  • IPM Interior Permanent Magnet
  • the rotor in this case generally has a structure in which a soft magnetic material such as iron is used as a back yoke and a thin ring magnet or an arc-shaped roof magnet is disposed on the rotor surface (for example, Patent Document 1). 2).
  • the rotor faces the stator core when the axial length of the rotor is larger than the thickness of the stator core. Since the amount of magnetic flux interlinked with the stator on the stator has a great influence on the motor characteristics, the axial dimension of the permanent magnet of the rotor is often larger than the thickness of the stator core.
  • the axial dimension of the permanent magnet is made larger than that of the stator core, there will be a lot of non-magnetic space (air) on the magnet surface in the part that does not face the stator core, resulting in a decrease in magnet permeance. As a result, the magnetic force generated by the magnet decreases.
  • the reduction in magnetic force due to the reduction in permeance becomes larger. For this reason, even if the rotor axial direction length of the permanent magnet is increased with respect to the thickness of the stator, the effect on the increase in material cost is reduced.
  • rotors composed of a plurality of different structures or magnet materials in the axial direction, and there are rotors using rare earth sintered magnets and ferrite sintered magnets with high magnetic force (for example, Patent Documents 3 and 4).
  • Sintered rare earth magnets are often used in the form of flat plates in order to reduce the manufacturing cost of the magnet because the manufacturing method is often a method in which a large magnet block is sintered and then cut into a predetermined shape.
  • an IPM is often used in which a magnet insertion hole is provided in a soft magnetic core and a permanent magnet is disposed inside the rotor.
  • the structure in the form of IPM is often used in the same manner in order to prevent scattering of the magnet due to centrifugal force.
  • the magnetic flux that is short-circuited between the magnetic poles inside the rotor is not greatly affected by the presence or absence of the stator core, so there is little change in the amount of magnetic flux that is short-circuited.
  • the proportion of the amount increases, making it difficult to effectively use the magnetic force of the magnet.
  • a rare earth magnet having a higher magnetic force may be used.
  • the material is expensive, there is a method of incorporating a rare earth magnet in a part of the rotor composed of a low magnetic force magnet. (For example, Patent Documents 5 and 6).
  • Patent Document 7 describes a rotor that achieves high performance by combining a low magnetic force magnet and a high magnetic force magnet.
  • a magnet with a low magnetic force is used inside the rotor, but this magnet has an anisotropic orientation, and even if the magnet has a low magnetic force due to the effect of concentrating the magnetic flux near the center of the magnetic pole.
  • a relatively high magnetic force can be obtained.
  • a magnet having a high magnetic force is arranged on the outer surface of the magnet and on the surface of the rotor.
  • magnets with high magnetic force such as rare earth magnets are expensive, they are often used with a thin wall to reduce the amount used, but in the case of this rotor, the inside of the magnet is a magnetic material with low magnetic force, A magnet having a high magnetic force has low permeance, and a sufficient magnetic force may not be obtained.
  • this rotor by arranging a polar anisotropic magnet on the inner side, it is possible to compensate for the decrease in the magnetic force of the high magnetic force magnet and obtain a high magnetic force.
  • the present invention has been made in view of the above, and it is possible to obtain a sufficient amount of magnetic flux even if the amount of expensive high-magnetism magnets is reduced, a method for manufacturing the same, and a synchronous motor.
  • the purpose is to provide.
  • the rotor of the synchronous motor according to the present invention is arranged on the rotor surface, and an annular first permanent magnet whose outer peripheral surface faces the stator core;
  • the first permanent magnet has a magnetic property lower than that of the first permanent magnet and has an anisotropic orientation, and the first permanent magnet surrounds both ends and the inner peripheral surface of the first permanent magnet in the rotation axis direction.
  • an annular second permanent magnet embedded in an outer peripheral surface and having a length in the direction of the rotation axis longer than that of the stator core.
  • the anisotropic orientation that allows the magnetic flux to be concentrated at the center of the magnetic pole with respect to the second permanent magnet it is possible to obtain more magnetic flux while having a low magnetic force. Further, by increasing the thickness of the second permanent magnet, it is possible to more effectively obtain the magnetic flux while suppressing the decrease in the magnetic flux density even when the distance from the stator is increased.
  • FIG. 1 is a longitudinal sectional view showing a configuration of a synchronous motor using the rotor according to the first embodiment.
  • 2 is a cross-sectional view taken along the line AA of the rotor in FIG.
  • FIG. 3 is a BB cross-sectional view of the rotor in FIG.
  • FIG. 4 is a diagram comparing the induced voltage of the rotor 6 according to the first embodiment and the induced voltage of the rotor according to the conventional configuration.
  • FIG. 5 is a diagram illustrating a method for manufacturing the rotor according to the second embodiment.
  • FIG. 6 is a diagram illustrating a method for manufacturing the rotor according to the third embodiment.
  • FIG. 7 is a diagram illustrating a method for manufacturing the rotor according to the fourth embodiment.
  • FIG. 1 is a longitudinal sectional view showing a configuration of a synchronous motor using a rotor according to the present embodiment.
  • 2 is an AA cross-sectional view of the rotor in FIG. 1
  • FIG. 3 is a BB cross-sectional view of the rotor in FIG.
  • the AA cross section and the BB cross section are cross sections perpendicular to the rotation axis direction of the rotor.
  • the synchronous motor according to the present embodiment includes an annular stator 3 and a rotor 6 that is rotatably arranged inside the stator 3 and that is provided with a rotation shaft 7 at the center. .
  • the stator 3 includes an annular stator core 4 formed by laminating electromagnetic steel plates and a winding 5 wound around the stator core 4.
  • a rotor 6 is rotatably disposed inside the stator core 4.
  • the stator core 4 is provided with teeth portions (not shown) as a plurality of protruding iron core portions on the inner peripheral side thereof in the circumferential direction, and slot portions (not shown) that are spaces between the teeth portions.
  • a winding 5 for applying a current from the outside is wound.
  • winding 5 is wound intensively for every teeth part.
  • the rotor 6 includes two types of permanent magnets 1 and 2 having different magnetic characteristics.
  • the permanent magnet 1 (first permanent magnet) is a high-magnetism permanent magnet, for example, a bonded magnet in which a rare earth magnet and a resin are mixed, and a material such as NdFeB or SmFeN is used for the rare earth magnet. It is done.
  • the resin material nylon, PPS (polyphenylene sulfide), epoxy, or the like is used.
  • the permanent magnet 2 (second permanent magnet) is a low-magnetism permanent magnet.
  • a bonded magnet in which a ferrite magnet and a resin are mixed is used. The resin material used for this is the same as described above.
  • the axial length of the rotor 6 (the axial length of the rotary shaft 7) is larger than the thickness of the stator 3 (the axial length of the stator core 4).
  • the permanent magnet 1 has an annular shape, and its outer peripheral surface faces the stator core 4.
  • the axial length of the permanent magnet 1 is shorter than the axial length of the stator core 4.
  • the permanent magnet 1 is surrounded by the permanent magnet 2 at both axial end surfaces and the inner peripheral surface thereof. That is, a groove for incorporating the permanent magnet 1 is formed over the entire circumference in the vicinity of the center in the axial direction of the outer peripheral surface of the permanent magnet 2, and the permanent magnet 1 is disposed in this groove and the outer circumference of the permanent magnet 2.
  • the shape is embedded in the surface.
  • the permanent magnet 1 is disposed coaxially with the permanent magnet 2.
  • the permanent magnet 1 is disposed on the outer peripheral side of the annular permanent magnet 2 and in the vicinity of the center in the axial direction, and the permanent magnet 2 is disposed on both ends and the inner peripheral surface side of the permanent magnet 1 in the axial direction. It has a configuration.
  • the permanent magnets 1 and 2 form the same cylindrical outer peripheral surface of the rotor 6, and the outer peripheral surface of the rotor 6 sandwiches the outer peripheral surface of the permanent magnet 1 in the axial direction and the outer peripheral surface in the axial direction. It is comprised with the outer peripheral surface of the permanent magnet 2.
  • the permanent magnet 1 has an uneven shape in which the thickness of the magnet is changed according to the magnetic pole of the rotor 6, for example. That is, by increasing the thickness (in the radial direction) in the vicinity of the center P of the magnetic pole to increase the magnetic force and reducing the thickness of the gap Q, a larger amount of magnetic flux can be obtained compared with a ring magnet having a uniform thickness. I am doing so. Further, the orientation of the permanent magnet 1 inside the magnet is, for example, an orientation close to polar anisotropy.
  • the outer periphery of the permanent magnet 2 has a shape corresponding to the shape of the inner periphery of the permanent magnet 1.
  • the permanent magnet 2 has, for example, polar anisotropic orientation in accordance with the magnetic poles of the rotor 6.
  • the permanent magnet 1 is a thin magnet as compared with the permanent magnet 2 and does not use a soft magnetic iron core for the back yoke. Therefore, the permeance of the magnet is low. In comparison, the amount of magnetic flux generated on the rotor surface is low.
  • the permanent magnet 2 since the permanent magnet 2 is present on the inner surface of the permanent magnet 1, the amount of magnetic flux actually obtained on the rotor surface is the sum of the amount of magnetic flux generated by the permanent magnet 1 and the permanent magnet 2, respectively. Therefore, it is possible to obtain performance close to the configuration using the permanent magnet 1 alone and the back yoke.
  • the thickness of the magnet constituting the magnetic pole in the magnet is larger than the dimensional thickness (outer diameter-inner diameter). Even if the distance from the stator core 4 is long, the decrease in the magnet permeance is small, and the decrease in the amount of magnetic flux is small even though the distance from the stator core 4 is long.
  • the permanent magnet 1 is disposed at a position that does not face the stator core 4, the outside of the permanent magnet 1 is surrounded by a nonmagnetic material and air, so that the magnetic resistance increases, the permeance decreases, and the magnetic flux that appears on the surface is reduced. Decrease significantly. For this reason, when the axial direction dimension of the permanent magnet 1 is expanded, the increase in the dimension results in a small increase in the amount of magnetic flux and poor cost performance.
  • a structure composed of only the permanent magnet 2 as shown in FIG. 3 is used at the axial end of the rotor 6.
  • a ferrite bonded magnet is used as the permanent magnet 2
  • the anisotropic orientation according to the magnetic pole of the rotor 6 is made.
  • polar anisotropic orientation directions are indicated by arrows.
  • a portion facing the stator core 4 in the vicinity of the center in the axial direction of the rotor 6 where the permeance of the magnet can be increased is provided in the permanent magnet of high magnetic force.
  • the magnet 1 is disposed, and the permanent magnet 2 having a low magnetic force but having an anisotropic orientation is disposed near the axial end of the stator core 4 where the permeance is likely to be low. It is possible to obtain a synchronous motor that suppresses deterioration of characteristics while reducing the amount of permanent magnet 1 used.
  • FIG. 4 is a diagram comparing the induced voltage of the rotor 6 according to the present embodiment and the induced voltage of the rotor according to the conventional configuration.
  • the induced voltage obtained by the synchronous motor including the rotor 6 having a combination of the structures of FIGS. 2 and 3 and FIG. It compares with the induced voltage obtained with the conventional synchronous motor provided with the rotor which consists only of these structures. That is, the rotor according to the conventional configuration has an arbitrary transverse cross section perpendicular to the axial direction as shown in FIG. 2, and the axial length of the permanent magnet 1 and the axial length of the permanent magnet 2 are equal. Has been.
  • the horizontal axis indicates the axial dimension of the structural portion shown in FIG. 2, that is, the axial length of the permanent magnet.
  • the total length in the axial direction of the rotor 6 is fixed (18 mm), and curves (L1, L2) are shown when the axial length of the permanent magnet is taken on the horizontal axis.
  • L1 shows the rotor 6 of this Embodiment
  • L2 has shown the rotor which concerns on the conventional structure. Since the axial dimension of the rotor is fixed, the dimension obtained by subtracting the axial dimension of the structural part of FIG. 2 (that is, the length of one permanent magnet) from the fixed dimension is the same as that of the structural part of FIG. It becomes a dimension.
  • the induced voltage obtained when the stator core stack thickness (L3) and the axial length of the rotor according to the conventional configuration are the same (that is, the intersection of L2 and L3) is 100%,
  • the vertical axis represents the induced voltage ratio.
  • the induced voltage ratio is 100% when the axial length of the rare earth permanent magnet 1 is 15 mm, which is the same as that of the stator core 4.
  • the induced voltage ratio becomes 100% when the axial length of the rare earth permanent magnet 1 is set to be slightly less than 11 mm. Is 3 mm longer, but the volume of the permanent magnet 1 is about 30% smaller than that of the conventional configuration.
  • the axial length of the rotor 6 becomes longer and the use of the ferrite magnet Although the amount is increased, the cost reduction effect seen from the whole material cost is sufficiently large.
  • a high-magnetic permanent magnet 1 for example, a rare earth magnet
  • Permanent magnet 2 for example, a ferrite magnet
  • the permanent magnet 1 is arranged in the axial center on the outer peripheral surface of the permanent magnet 2 so that the permanent magnet 2 is arranged outside and radially inward of both ends of the permanent magnet 1 in the axial direction.
  • the shape is embedded in the vicinity, and the permanent magnet 2 is subjected to polar anisotropic orientation.
  • the rotation of a synchronous motor capable of obtaining a sufficient amount of magnetic flux while reducing the amount of expensive high magnetic permanent magnet 1 (rare earth magnet) used and suppressing the material cost of the motor. A child can be realized.
  • the permanent magnet 2 more magnetic flux can be obtained from the low-magnetism magnet by performing the anisotropic orientation that can concentrate the magnetic flux at the magnetic pole center. Further, by increasing the thickness of the permanent magnet 2, even if the distance from the stator 3 is increased, the magnetic flux of the permanent magnet 2 can be obtained more effectively by suppressing the decrease of the magnetic flux density.
  • FIG. FIG. 5 shows a method for manufacturing a rotor according to the present embodiment.
  • the rotor of the present embodiment has the same configuration as the rotor 6 of the first embodiment. That is, the rotor of the present embodiment is a rotor 6 having a combination of the structures shown in FIGS.
  • the permanent magnets 1 and 2 are the same as those described in the first embodiment, and can be, for example, bonded magnets.
  • the permanent magnet 2 in FIG. 2 and the permanent magnet 2 in FIG. 3 may be made of the same material, and it is only necessary that they can be formed integrally.
  • the permanent magnet 2 has a concave shape in which the permanent magnet 1 is disposed near the center in the axial direction. Since the structure has a space, a portion (concave portion) having a small outer diameter exists. In this case, since the permanent magnet 2 cannot be taken out from the molding die, it is difficult to mold the permanent magnet 2 as a whole. Further, when the permanent magnet 1 is formed first and then the permanent magnet 2 is formed integrally by insert molding, the thin permanent magnet 1 is highly likely to crack due to the molding pressure from the inner diameter side during molding.
  • the shape portion of the rotor 6 in FIG. 2 and the shape portion in FIG. 3 are separately formed.
  • the details are as follows.
  • the permanent magnet 1 and the annular permanent magnet 2a disposed inside thereof are integrally formed by, for example, injection molding (FIG. 5A).
  • the permanent magnet 2a is made of the same material as the permanent magnet 2 and has the same magnetic characteristics.
  • the permanent magnet 2a corresponds to a portion of the permanent magnet 2 on the inner peripheral surface side of the permanent magnet 1 and where the arrangement position overlaps with the permanent magnet 1 in the axial direction.
  • annular permanent magnets 2b and 2c are separately molded by, for example, injection molding (FIG. 5 (a)).
  • the permanent magnets 2b and 2c are made of the same material as the permanent magnet 2 and have the same magnetic characteristics.
  • the permanent magnets 2b and 2c have the same cross-sectional shape, and the inner diameter thereof is equal to the inner diameter of the permanent magnet 2a, and the outer diameter thereof is equal to the outer diameter of the permanent magnet 1.
  • the permanent magnet 2 b corresponds to a portion of the permanent magnet 2 that is disposed outside one end of the permanent magnet 1 in the axial direction, and the permanent magnet 2 c is the outside of the other end of the permanent magnet 1 in the axial direction of the permanent magnet 2. It corresponds to the part arranged in
  • the permanent magnet 2a (1st magnet component) integrally molded with the permanent magnet 1 from the axial direction both sides by the permanent magnet 2b (2nd magnet component) and the permanent magnet 2c (3rd magnet component)
  • a rotor having the same configuration as that of the rotor 6 of the first embodiment can be manufactured by stacking them in the axial direction so as to be sandwiched and joining them together (FIG. 5B).
  • the permanent magnet 2 is configured by joining three permanent magnets 2a to 2c in the axial direction.
  • the permanent magnet 2 is divided into a permanent magnet 2a, a permanent magnet 2b, and a permanent magnet 2c, and the permanent magnet 1, the permanent magnet 2a, the permanent magnet 2b, and the permanent magnet 2c are separately molded.
  • the rotor 6 of the first embodiment can be manufactured.
  • each of the permanent magnets 2a to 2c can be molded separately, polar orientation suitable for each can be applied, and the orientation magnetic field of the mold to be molded can be adjusted accordingly.
  • FIG. 6 is a diagram illustrating a method for manufacturing the rotor according to the present embodiment.
  • the rotor of the present embodiment has the same configuration as the rotor 6 of the first embodiment. That is, the rotor of the present embodiment is a rotor 6 having a combination of the structures shown in FIGS.
  • the permanent magnets 1 and 2 are the same as those described in the first embodiment, and can be, for example, bonded magnets.
  • the permanent magnet 2d corresponding to the permanent magnet 2a and the permanent magnet 2c described in the second embodiment are integrally formed by, for example, injection molding (FIG. 6A).
  • the permanent magnet 2d is made of the same material as the permanent magnet 2 and has the same magnetic characteristics. That is, the permanent magnet 2d includes a portion (first portion) of the permanent magnet 2 of the first embodiment that overlaps with the permanent magnet 1 on the inner peripheral surface side and in the axial direction (first portion), and the axial direction.
  • a part (second part) disposed outside one end of the permanent magnet 1 is integrally formed.
  • the permanent magnet 1 is formed integrally with the permanent magnet 2d by insert molding so that the permanent magnet 1 is fitted into the first portion of the permanent magnet 2d (FIG. 6B).
  • the annular permanent magnet 2e is molded by, for example, injection molding (FIG. 6B).
  • the permanent magnet 2e is made of the same material as the permanent magnet 2 and has the same magnetic characteristics.
  • the permanent magnet 2 e has an inner diameter equal to the inner diameter of the permanent magnet 2 d and an outer diameter equal to the maximum outer diameter of the permanent magnet 1.
  • the permanent magnet 2d (first magnet component) and the permanent magnet 2e (second magnet component) formed integrally with the permanent magnet 1 are arranged so that the permanent magnet 1 is disposed on the connection surface.
  • a rotor having the same configuration as the rotor 6 of the first embodiment can be manufactured (FIG. 6B).
  • the rotor 6 can be manufactured from two parts, a permanent magnet 2d formed integrally with the permanent magnet 1 and a permanent magnet 2e.
  • the permanent magnet 2 includes a permanent magnet 2d and a permanent magnet 2e.
  • the number of parts constituting the permanent magnets 1 and 2 of the rotor 6 can be reduced to two, so that the number of parts can be reduced and the manufacturing processing cost can be reduced. is there.
  • FIG. 7 is a diagram illustrating a method for manufacturing the rotor according to the present embodiment.
  • the rotor of the present embodiment has the same configuration as the rotor 6 of the first embodiment. That is, the rotor of the present embodiment is a rotor 6 having a combination of the structures shown in FIGS.
  • the permanent magnets 1 and 2 are the same as those described in the first embodiment, and can be, for example, bonded magnets.
  • a permanent magnet 2f corresponding to one obtained by integrally molding one of the permanent magnets 2a described in the second embodiment in the axial direction and the permanent magnet 2c is integrally formed by, for example, injection molding (FIG. 7).
  • the permanent magnet 2f is made of the same material as the permanent magnet 2 and has the same magnetic characteristics. That is, the permanent magnet 2f is a permanent magnet 2 according to the first embodiment in which the portion where the permanent magnet 1 and the arrangement position overlap in the axial direction on the inner peripheral surface side of the permanent magnet 1 is halved in the axial direction.
  • the axial direction is combined with a portion arranged outside one end of the permanent magnet 1.
  • the permanent magnet 1a is integrally formed with the permanent magnet 2f by insert molding so that the permanent magnet 1a, which is one of the permanent magnets 1 equally divided in the axial direction, is fitted into the permanent magnet 2f.
  • the two permanent magnets 2f into which the permanent magnets 1a thus obtained are fitted are prepared, and these are stacked in the axial direction and joined to each other so that the permanent magnets 1a serve as joint surfaces, so that A rotor having the same configuration as that of the rotor 6 can be manufactured (FIG. 7). In this case, the rotor 6 can be manufactured from two parts.
  • the permanent magnet 2 is composed of two permanent magnets 2f
  • the permanent magnet 1 is composed of two permanent magnets 1a.
  • the number of parts constituting the permanent magnets 1 and 2 of the rotor 6 can be reduced to two, it is possible to reduce the manufacturing processing cost. Further, since two parts having the same shape are combined, the molds for molding these parts may be the same, the types of molds can be reduced, and the cost of the molds can be reduced.
  • the present invention is useful as a rotor of a synchronous motor.

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

Abstract

La présente invention concerne un rotor de moteur électrique synchrone équipé : d'un aimant permanent circulaire hautement magnétique (1) qui est disposé sur la surface du rotor et dont la surface circonférentielle extérieure fait face au noyau de stator (4) ; et d'un aimant permanent circulaire (2) dont la longueur, dans le sens de rotation de l'axe, est supérieure à celle du noyau de stator (4), dont la force magnétique est inférieure à celle de l'aimant permanent (1), qui présente une orientation anisotrope polaire et dans la surface circonférentielle extérieure duquel l'aimant permanent (1) est intégré de façon à confiner les deux extrémités de l'aimant permanent (1), dans le sens de rotation de l'axe ainsi que son côté circonférentiel intérieur.
PCT/JP2012/051672 2012-01-26 2012-01-26 Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone WO2013111301A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013555060A JP6121914B2 (ja) 2012-01-26 2012-01-26 同期電動機
PCT/JP2012/051672 WO2013111301A1 (fr) 2012-01-26 2012-01-26 Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone
CN201280067884.1A CN104067483B (zh) 2012-01-26 同步电动机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/051672 WO2013111301A1 (fr) 2012-01-26 2012-01-26 Rotor de moteur électrique synchrone, procédé de fabrication de celui-ci et moteur électrique synchrone

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015181323A (ja) * 2014-03-06 2015-10-15 アスモ株式会社 ロータ、及びモータ
WO2016203524A1 (fr) * 2015-06-15 2016-12-22 三菱電機株式会社 Moteur électrique à aimant permanent
WO2020261420A1 (fr) * 2019-06-26 2020-12-30 三菱電機株式会社 Rotor, moteur, ventilateur, climatiseur et procédé de fabrication d'un rotor
WO2022054149A1 (fr) * 2020-09-09 2022-03-17 三菱電機株式会社 Rotor, moteur électrique, soufflante et dispositif de climatisation
WO2023157131A1 (fr) * 2022-02-16 2023-08-24 三菱電機株式会社 Rotor à aimant permanent et procédé de fabrication de rotor à aimant permanent

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993842A (ja) * 1995-09-28 1997-04-04 Sankyo Seiki Mfg Co Ltd 小型モータのロータ
JP2009189155A (ja) * 2008-02-06 2009-08-20 Mitsubishi Electric Corp 同期電動機の回転子及び送風機用電動機及び空気調和機及びポンプ及び給湯機
JP2011087393A (ja) * 2009-10-14 2011-04-28 Mitsubishi Electric Corp 同期電動機の回転子

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09205746A (ja) * 1996-01-25 1997-08-05 Shibaura Eng Works Co Ltd 電動機
JP2000134882A (ja) * 1998-10-21 2000-05-12 Matsushita Electric Ind Co Ltd 永久磁石モータのロータ及びそれを搭載したコンプレッサ
JP2009027842A (ja) * 2007-07-19 2009-02-05 Toshiba Corp 永久磁石同期電動機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993842A (ja) * 1995-09-28 1997-04-04 Sankyo Seiki Mfg Co Ltd 小型モータのロータ
JP2009189155A (ja) * 2008-02-06 2009-08-20 Mitsubishi Electric Corp 同期電動機の回転子及び送風機用電動機及び空気調和機及びポンプ及び給湯機
JP2011087393A (ja) * 2009-10-14 2011-04-28 Mitsubishi Electric Corp 同期電動機の回転子

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015181323A (ja) * 2014-03-06 2015-10-15 アスモ株式会社 ロータ、及びモータ
WO2016203524A1 (fr) * 2015-06-15 2016-12-22 三菱電機株式会社 Moteur électrique à aimant permanent
JPWO2016203524A1 (ja) * 2015-06-15 2017-08-24 三菱電機株式会社 永久磁石電動機
US10491082B2 (en) 2015-06-15 2019-11-26 Mitsubishi Electric Corporation Permanent-magnet electric motor
WO2020261420A1 (fr) * 2019-06-26 2020-12-30 三菱電機株式会社 Rotor, moteur, ventilateur, climatiseur et procédé de fabrication d'un rotor
JPWO2020261420A1 (ja) * 2019-06-26 2021-10-21 三菱電機株式会社 回転子、電動機、送風機、空気調和機、及び回転子の製造方法
JP7072726B2 (ja) 2019-06-26 2022-05-20 三菱電機株式会社 回転子、電動機、送風機、空気調和機、及び回転子の製造方法
WO2022054149A1 (fr) * 2020-09-09 2022-03-17 三菱電機株式会社 Rotor, moteur électrique, soufflante et dispositif de climatisation
JPWO2022054149A1 (fr) * 2020-09-09 2022-03-17
JP7415024B2 (ja) 2020-09-09 2024-01-16 三菱電機株式会社 電動機、送風機及び空気調和装置
WO2023157131A1 (fr) * 2022-02-16 2023-08-24 三菱電機株式会社 Rotor à aimant permanent et procédé de fabrication de rotor à aimant permanent

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