WO2012026003A1 - Rotor - Google Patents

Rotor Download PDF

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Publication number
WO2012026003A1
WO2012026003A1 PCT/JP2010/064377 JP2010064377W WO2012026003A1 WO 2012026003 A1 WO2012026003 A1 WO 2012026003A1 JP 2010064377 W JP2010064377 W JP 2010064377W WO 2012026003 A1 WO2012026003 A1 WO 2012026003A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
rotor
laminated
iron core
core
Prior art date
Application number
PCT/JP2010/064377
Other languages
English (en)
Japanese (ja)
Inventor
竜彦 水谷
勝秀 北川
雅志 松本
Original Assignee
トヨタ自動車株式会社
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 トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to PCT/JP2010/064377 priority Critical patent/WO2012026003A1/fr
Publication of WO2012026003A1 publication Critical patent/WO2012026003A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect

Definitions

  • the present invention relates to a rotor of a motor generator, and more particularly to a rotor in which permanent magnets are embedded in a laminated iron core in a balanced manner.
  • the motor generator mounted on such an electric vehicle can accelerate the vehicle by generating a driving force with electric power from the battery when starting or running. Further, at the time of braking, it can be used as a regenerative brake in which the motor generator is used as a generator to convert the kinetic energy of the vehicle into electric energy and charge the battery.
  • a permanent magnet As a motor generator mounted on such an electric vehicle, a permanent magnet is used so that a driving torque (reluctance torque) generated by the asymmetry of the magnetic resistance can be used due to the high density of field magnetic flux and the ease of regenerative braking.
  • An IPM type Interior / Permanent / Magnet
  • An SPM type Surface Permanent Magnet
  • a permanent magnet is attached to the surface of a rotor.
  • Patent Document 1 discloses a technique in which a through hole is provided in a laminated iron core formed by laminating plate-like magnetic bodies, and a permanent magnet is attached to the through hole. This technique prevents the laminated iron core and the permanent magnet from cracking or chipping when the permanent magnet is mounted in the through hole, and realizes the positioning of the permanent magnet in the through hole.
  • the rotor of Patent Document 1 is a through hole in which a permanent magnet is mounted and an injection hole that extends along the center side of the laminated core of the through hole, and communicates with the through hole at a position corresponding to the permanent magnet. And a resin member that is injected through the injection hole and filled between the through hole and the permanent magnet. Furthermore, in Patent Document 1, a permanent magnet is fixed in a well-balanced manner inside the rotor by providing a protrusion for placing the permanent magnet on a jig for fixing the permanent magnet at a predetermined position of the rotor. Technology is disclosed.
  • Patent Document 2 discloses a rotor for the purpose of securely fixing and protecting the permanent magnet of the rotor with a simple device.
  • the rotor of Patent Document 2 includes a laminated iron core provided with a through hole for mounting a permanent magnet, a plate member that covers the end surface of the laminated iron core, and a plate portion and a permanent magnet for setting the axial position of the permanent magnet. And a resin spacer provided between and a resin member for fixing the permanent magnet to the rotor. With such a configuration, the position of the permanent magnet in the rotor can be fixed in a balanced manner by the spacer provided between the permanent magnet and the plate member without exposing the permanent magnet by the plate member.
  • Patent Document 1 in order to fix the permanent magnet to the laminated steel plate of the rotor, a resin member injection hole is provided on the central axis side of the through hole into which the permanent magnet is inserted, and the through hole and the resin member injection hole are communicated with each other. The filling of the members is facilitated.
  • the resin member injection hole in the laminated steel sheet the formation of the magnetic field is hindered, which may increase so-called iron loss such as eddy current loss and hysteresis loss in the laminated steel sheet of the rotor.
  • Patent Document 2 discloses a structure in which a laminated iron core is pressed from both sides by two plate members.
  • the laminated steel plates and permanent magnets cannot be covered, and it is impossible to prevent the end of the laminated steel plates from being turned up. Protection and positioning become difficult.
  • eddy current loss occurs in the permanent magnets due to the two plates protecting the permanent magnets provided on the rotor, which is a concern particularly in motor generators that require a high rotational speed to improve vehicle running performance. Matters.
  • the rotor according to the present invention provides a magnet-embedded rotor that can fix a permanent magnet to a laminated iron core in a balanced manner without providing a resin member injection hole or a plate member, and can be reduced in weight and size. With the goal.
  • a rotor according to the present invention includes a laminated core formed by laminating plate-like magnetic bodies in the axial direction, and a plurality of hole portions penetrating in the axial direction from the end face of the laminated core.
  • a permanent magnet inserted into each of the holes disposed at predetermined intervals in the circumferential direction, and the axial length of the laminated iron core is longer than that of the permanent magnet, and the central portion in the axial direction of the laminated iron core
  • a permanent magnet is arranged by setting a predetermined pull-in amount so as to be positioned at a position, and the permanent magnet is fixed to the hole by a resin member, thereby preventing the end of the laminated core from being turned up.
  • the permanent magnets are arranged at positions where the number of plate-like magnetic bodies from the laminated core end surface to the permanent magnet end surface is the same from the front surface and the back surface. Since the amount of pull-in is from one to several sheets of plate-like magnetic material, it is also preferable to use the number of plate-like magnetic materials as a guide.
  • a negative repulsive force acts on the plate-like magnetic body in the region sandwiched between two adjacent permanent magnets on the plate-like magnetic body located from the laminated core end surface to the permanent magnet end surface. It is characterized by that. Although it is difficult to actually measure the negative repulsive force, it is clear that no repulsive force is generated from the result that the turning up of the laminated iron core is reduced by setting an appropriate pull-in amount.
  • the resin member is filled so as to close both end surfaces of the permanent magnet inserted into the hole formed through the end surface of the laminated core in the axial direction. And Furthermore, in order to balance the magnetic field, it is also important to equalize the filling state of the resin members on both end faces.
  • two permanent magnets among the plurality of permanent magnets are arranged in a substantially V shape so that the opposing distance increases toward the radially outer side of the laminated core, and the resin member is It is characterized in that a gap between the holes provided at both ends in the circumferential direction of each permanent magnet and a gap provided in the radial direction are filled.
  • a permanent magnet can be fixed to the laminated core in a well-balanced manner, and a magnet-embedded type that can be reduced in weight and size by reducing the diameter of the end plate that protects both end portions of the laminated core.
  • FIG. 1 is a configuration diagram of a motor generator system according to an embodiment of the present invention. It is a front view of the motor generator concerning the embodiment of the present invention. It is explanatory drawing explaining the winding of the stator core which concerns on embodiment of this invention. It is explanatory drawing explaining the relationship between the position of the permanent magnet which concerns on embodiment of this invention, and the deformation amount of a laminated iron core. It is a characteristic view of the pop-out amount and repulsion of the permanent magnet according to the embodiment of the present invention. It is explanatory drawing explaining the permanent magnet part of the rotor which concerns on embodiment of this invention.
  • FIG. 1 shows a cross-sectional view of the rotor 15, and FIG. 2 shows a configuration of the motor generator system 10 having the rotor 15 of FIG. 1 includes a hollow shaft 11 rotatably supported by a bearing 13 fixed to a case, a laminated core 12 in which thin plate-like magnetic bodies are laminated, and an end plate that holds the laminated iron core 12 from both sides.
  • 16 plate member
  • a permanent magnet 14 inserted in a through hole provided in the laminated core 12 with a predetermined pull-in amount (G), and a mold filled between the through hole and the permanent magnet 14
  • the resin 17 and the mold hole 18 formed in the manufacturing process of the rotor 15 described later are included.
  • the end plate 16 is reduced in diameter so as not to cover the permanent magnet 14 in order to reduce eddy current loss.
  • the motor generator system 10 of FIG. 2 includes a motor generator 20 and a control device 31 connected via a U-phase, V-phase, and W-phase cable 24 connected to a three-phase coil 22 provided in the motor generator 20. And an ECU 30 for instructing the control device 31 of a speed and a torque value. Further, the motor generator 20 includes the rotor 15 shown in FIG. 1 and a stator 23 (stator) that rotatably accommodates the rotor 15 therein.
  • One of the characteristic features of the rotor 15 according to the present invention is to reduce the eddy current loss by reducing the diameter of the end plate 16 that covers the laminated core 12 of the rotor 15 as shown in FIG. This is to reduce the weight of the rotor 15.
  • the rotor 15 of the motor generator 20 is exposed to heat generated by energization, centrifugal force and vibration during high rotation, etc., and therefore, cracking of the mold resin due to heat generation and aging occurs. For this reason, in a state where there is no protection by the end plate 16, it is necessary to firmly fix the permanent magnet to the laminated iron core by taking measures such as separately providing a mold resin injection hole as in Patent Document 1.
  • one of the characteristic features of the rotor 15 according to the present invention is that the permanent magnet 14 having a predetermined pull-in amount is set in order to eliminate the protection by the end plate 16 and omit the strong fixing by the mold resin 17.
  • the repulsive force repulsive force
  • suction force negative repulsive force
  • FIG. 3 shows a front view of the motor generator 20 and shows a stator core 21 having a plurality of teeth 25 and a rotor 15 having a plurality of permanent magnets 14.
  • the number of teeth 25 is provided to be an integral multiple of the number of permanent magnets 14 embedded in the rotor 15.
  • the V-shaped permanent magnet 14 opened in the outer circumferential direction is arranged so that the outer circumference of the rotor 15 is an N pole or an S pole, and an S pole or an N pole having an opposite polarity is arranged on the inner pole.
  • the permanent magnet 14 is magnetized in the radial direction around the central axis, and is arranged so that the polarity of the permanent magnet is repelled between adjacent magnets.
  • substantially triangular cavities are provided on both sides of the permanent magnet 14, and a resin or the like to be described later is enclosed.
  • the end plate 16 avoids the permanent magnet 14 and covers the central portion of the laminated core 12, and the outer peripheral portion of the laminated core 12 is open.
  • FIG. 4 shows the winding of the stator core 21.
  • the stator core 21 is wound with U-phase coils 101 to 108 disposed on the outermost periphery, V-phase coils 111 to 118 disposed on the inner periphery, and W-phase coils 121 to 128 disposed on the innermost periphery. It has been turned. These coils are arranged at positions shifted by a certain phase in the circumferential direction.
  • the outermost U-phase coils 101 to 104 are connected in series with the U1 terminal as one end, and the other end is a neutral point UN1 terminal.
  • the outermost U-phase coils 105 to 108 are connected in series with the U2 terminal as one end, and the other end is a neutral point UN2 terminal.
  • the V-phase coils 111 to 114 on the inner periphery are connected in series with the V1 terminal as one end, and the other end is a neutral point VN1 terminal.
  • the V-phase coils 115 to 118 are connected in series with the V2 terminal as one end, and the other end is a neutral point VN2 terminal.
  • the innermost W-phase coils 121 to 124 are connected in series with the W1 terminal as one end, and the other end is a neutral point WN1 terminal.
  • the innermost W-phase coils 125 to 128 are connected in series with the W2 terminal as one end, and the other end is a neutral point WN2 terminal.
  • the neutral points UN1, UN2, VN1, VN2, WN1, and WN2 are commonly connected to one point.
  • the U1 terminal and U2 terminal are connected to a U-phase cable, the V1 terminal and V2 terminal are connected to a V-phase cable, and the W1 terminal and W2 terminal are connected to a W-phase cable.
  • the above is the configuration of the motor generator system 10.
  • the evaluation test uses a testing machine that operates for a long time, (A) when a permanent magnet is arranged inside the laminated core, (B) when the end face of the laminated core and the end face of the permanent magnet are matched, (C) The change of the laminated thickness (referred to as the stack thickness) of the laminated iron core 12 was measured when the permanent magnet was popped out from the end face of the laminated iron core.
  • FIG. 5 shows an example of the position of the permanent magnet in the rotor and the deformation amount (stack thickness deformation amount) of the laminated core.
  • A Center position: Since the permanent magnets are arranged inside the laminated iron core, the permanent magnets are arranged, for example, about 2 mm inside from the both end faces of the laminated iron core. For example, it decreased by about -0.1 mm.
  • B end face coincidence: When the end face of the laminated core and the end face of the permanent magnet are made coincident, for example, the stack thickness increases by about 0.2 mm (turning occurs), and
  • C jumps out. : For example, when a permanent magnet was protruded from the end face of the laminated iron core by about 5 mm, for example, the result increased by about 0.4 mm (turning occurred).
  • the end face of the permanent magnet so as to be inside the end face of the laminated core, and more preferably, the end face of the permanent magnet is arranged to be inside by an equal distance from both ends of the laminated core. It is good to arrange. According to a plurality of experimental results with various conditions changed, for example, about 0.2 mm to about 1 mm is preferable from the end face of the laminated core. If it is arranged too deep, the permanent magnet is shortened, and the motor generator The output is reduced.
  • the rotor according to the present invention includes a hollow shaft 11 that is rotatably supported by a bearing 13 fixed to a case, a laminated iron core 12 in which thin plate-like magnetic bodies are laminated, An end plate 16 (plate member) that holds down the laminated core 12 from both sides, a permanent magnet 14 inserted into a through hole provided in the laminated core 12, and a mold resin 17 filled between the through hole and the permanent magnet 14 And a mold hole 18.
  • the mold hole 18 is formed with a stopper (installed to set a predetermined pull-in amount) of about 0.2 mm to about 1 mm from the end face of the laminated iron core.
  • the said numerical result is an example, and it cannot be overemphasized that the amount of thickness deformation is set to the optimal value.
  • a description will be given of the result of calculating the repulsive force applied to the laminated iron core, which is difficult to measure by experiments, by simulation.
  • FIG. 6 shows the relationship between the amount of protrusion of the permanent magnet and the repulsive force in the rotor 15 by simulation in consideration of changes in the current applied to the stator (stator) in the operating state of the testing machine.
  • the repulsive force tends to increase as the amount of the permanent magnet popping out from the laminated iron core indicated by the magnet positions (A) to (C) increases, but the end face of the laminated iron core and the permanent magnet In the case where the end faces are matched (B), a negative repulsion occurs as the current decreases.
  • FIG. 7 shows the rotor 15 of FIG. 3 and the enlarged permanent magnet portion.
  • the rotor 15 includes a laminated iron core 12, a permanent magnet 14 that is provided in the laminated iron core 12 and has a through-hole having a substantially triangular corner, and an end plate 16 that holds the inside of the laminated iron core 12. Since the two permanent magnets 14a and 14b are arranged in a substantially V shape so that the facing distance increases toward the outer side in the radial direction of the laminated iron core, the plate-like magnetic body is formed in the V-shaped a region. It's turned over.
  • the mold resin 17 is filled in the gap between the laminated core 12 and the permanent magnet 14 by the injection piston 35. As shown in FIG. The mold resin 17 is filled in a substantially triangular space in the longitudinal direction of the permanent magnet 14. 7B, the mold resin 17 covers the end surface of the permanent magnet 14, and a stopper supporting the permanent magnet 14 is formed as the mold hole 18. As shown in FIG. Next, the process (1st fixing method) which fixes the permanent magnet 14 to the laminated iron core 12 is demonstrated.
  • the forming jig 30 in FIG. 8A includes a base portion 38 that supports the laminated core 12, an extrusion rod 33 that extrudes the molded laminated core 12, and an iron core holder 41 that supports the side surface of the laminated core 12. ,have. Further, the base portion 38 is provided with a stopper 32 for supporting the permanent magnet 14 at the center position of the laminated core 12.
  • FIG. 8B shows a state where the permanent magnet 14 is inserted into the forming jig 30.
  • the end face of the permanent magnet 14 is positioned by the stopper 32 so as to enter the inside at an equal distance from the end face of the laminated core 12.
  • a lid body 34 having an injection piston for injecting a mold resin is installed on the iron core holder 41, and thereafter, the mold resin 36 stored in the injection piston 35 is placed on the laminated core 12.
  • the permanent magnet 14 The injected mold resin 36 flows from the top to the bottom around the permanent magnet 14, and the air around the permanent magnet 14 is discharged from the gap between the base portion 38 and the iron core holder 41.
  • the stopper 32 is provided.
  • the present invention is not limited to this, and a protruding portion that exhibits the same function as the stopper 32 provided on the base portion 38 may be provided below the laminated core 12 itself.
  • the protruding portion uses one or two plate-like magnetic bodies of about 0.2 mm, so that the stopper 32 of the base portion 38 becomes unnecessary.
  • FIG. 10 and 11 show another process for fixing the permanent magnet of the rotor 15.
  • the end face of the permanent magnet 14 is arranged on the inner side than the end face of the laminated core 12 and the permanent magnets are arranged at equal distances from both end faces of the laminated core 12. From this, pressure was applied to hold the laminated core at an intermediate position, and mold holes 18 formed only on the bottom surface were formed on the bottom surface and the top surface. By providing the mold holes 18 on both sides, a uniform magnetic field can be formed on both sides.
  • the 10A includes a base portion 38 that supports the laminated core 12, an extrusion bar 33 for extruding the molded laminated core 12, extrusion means 51 for extruding a permanent magnet, and the laminated core 12.
  • An iron core holder 41 that supports the side surfaces of the iron core.
  • the push-out means 51 includes a slide hole and an O-ring 43 provided in the base portion 38, a pin 42 that fits into the O-ring and is displaced by being pressed by a spring 44, and a plug 45 that presses the spring 44. Yes.
  • FIG. 10B shows a state in which the permanent magnet 14 is inserted into the forming jig 40.
  • the end face of the permanent magnet 14 is pushed out by the pushing means 51.
  • FIG. 11C when a lid 46 having an injection piston 35 for injecting mold resin and an extruding means 52 is installed on the iron core holder 41, a position where equal pressure is applied from above and below. That is, it is positioned so as to enter the inside by an equal distance from the end face of the laminated core 12.
  • the pushing means 51 and 52 have the same pushing force and operate so that the positions where the pressures are balanced are equal distances.
  • the mold resin 36 stored in the injection piston 35 of the lid 46 is injected into the gap between the laminated iron core 12 and the permanent magnet 14.
  • the injected mold resin 36 flows from the top to the bottom around the permanent magnet 14, and the air around the permanent magnet 14 is discharged from the gap between the base portion 38 and the iron core holder 41.
  • the periphery of the permanent magnet 14 is filled with the mold resin 36, and the permanent magnet 14 is fixed to the laminated core 12 as shown in FIG.
  • the pin 42 of the push-out means 51 and the pin 42 of the push-out means 52 move so as to hold the permanent magnet 14 and push out.
  • the laminated iron core 12 is taken out by the rod 33. In this way, the pin 42 can hold the permanent magnet 14 at the center position of the laminated core 12.
  • the permanent magnets are fixed to the laminated core in a balanced manner, and the end plate that protects both end portions of the laminated core is reduced in size and reduced in size and weight. Can be realized.
  • the present embodiment has been described using specific numerical values, these numerical values are affected by the design dimensions of the rotor, and are not limited to these values.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

L'invention vise à proposer un rotor incorporant un aimant qui, sans comporter de trou d'injection d'élément en résine ni d'élément plaque, fixe un aimant permanent à un noyau feuilleté d'une manière bien équilibrée, et qui peut être plus léger et plus compact. À cet effet, l'invention concerne un rotor (15) qui comporte : un arbre creux (11) qui est supporté rotatif par un palier (13) qui est fixé à une carcasse ; un noyau feuilleté (12) dans lequel des corps magnétiques minces en forme de plaque sont empilés ; une plaque d'extrémité (16) (élément plaque) qui presse le noyau feuilleté (12) sur les deux faces ; un aimant permanent (14) qui est inséré dans un trou débouchant ménagé dans le noyau feuilleté (12) ; une résine de moulage (17) qui remplit l'espace entre le trou débouchant et l'aimant permanent (14) ; et un trou de moulage (18) formé sur une face du noyau feuilleté. Le trou de moulage (18) est formé à l'aide d'un bouchon (monté pour fixer une profondeur d'enfoncement prédéterminée qui est de l'ordre d'environ 0,2 mm à environ 1 mm à partir de la surface latérale du noyau feuilleté).
PCT/JP2010/064377 2010-08-25 2010-08-25 Rotor WO2012026003A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2010/064377 WO2012026003A1 (fr) 2010-08-25 2010-08-25 Rotor

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Application Number Priority Date Filing Date Title
PCT/JP2010/064377 WO2012026003A1 (fr) 2010-08-25 2010-08-25 Rotor

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WO2012026003A1 true WO2012026003A1 (fr) 2012-03-01

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014220911A (ja) * 2013-05-08 2014-11-20 株式会社三井ハイテック 回転子積層鉄心および回転子積層鉄心の製造方法
JP2017022886A (ja) * 2015-07-10 2017-01-26 株式会社三井ハイテック 永久磁石固定方法、金型、及び電機子
JPWO2017090150A1 (ja) * 2015-11-26 2018-06-07 三菱電機株式会社 ロータ
EP3457544A1 (fr) * 2017-09-19 2019-03-20 Mitsui High-Tec, Inc. Procédé de fabrication d'un noyau de rotor
DE102017217937A1 (de) * 2017-10-09 2019-04-11 Zf Friedrichshafen Ag Sekundärelement für eine elektrische Maschine
JP2019134566A (ja) * 2018-01-30 2019-08-08 本田技研工業株式会社 回転電機のロータの製造方法
EP3664263A4 (fr) * 2018-10-11 2020-06-10 Kuroda Precision Industries Ltd. Gabarit de support de noyau de rotor, et dispositif et procédé de production de noyau intégré à un aimant
JP2020127294A (ja) * 2019-02-05 2020-08-20 ファナック株式会社 ロータコアの製造装置及びロータコアの製造方法
JP2020127293A (ja) * 2019-02-05 2020-08-20 ファナック株式会社 ロータコアの製造装置及びロータコアの製造方法、並びにロータ構造
CN113489193A (zh) * 2021-08-03 2021-10-08 珠海格力电器股份有限公司 电机转子、电机、空调器
US11515770B2 (en) * 2019-02-12 2022-11-29 Fanuc Corporation Device for manufacturing rotor core and method for manufacturing rotor core

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Publication number Priority date Publication date Assignee Title
JP2002034187A (ja) * 2000-07-13 2002-01-31 Mitsubishi Electric Corp 磁石埋込型回転子
WO2007091692A1 (fr) * 2006-02-08 2007-08-16 Toyota Jidosha Kabushiki Kaisha Procede de fabrication de rotor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002034187A (ja) * 2000-07-13 2002-01-31 Mitsubishi Electric Corp 磁石埋込型回転子
WO2007091692A1 (fr) * 2006-02-08 2007-08-16 Toyota Jidosha Kabushiki Kaisha Procede de fabrication de rotor

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014220911A (ja) * 2013-05-08 2014-11-20 株式会社三井ハイテック 回転子積層鉄心および回転子積層鉄心の製造方法
JP2017022886A (ja) * 2015-07-10 2017-01-26 株式会社三井ハイテック 永久磁石固定方法、金型、及び電機子
JPWO2017090150A1 (ja) * 2015-11-26 2018-06-07 三菱電機株式会社 ロータ
US11088600B2 (en) 2017-09-19 2021-08-10 Mitsui High-Tec, Inc. Method for manufacturing rotor core
EP3457544A1 (fr) * 2017-09-19 2019-03-20 Mitsui High-Tec, Inc. Procédé de fabrication d'un noyau de rotor
CN109525080A (zh) * 2017-09-19 2019-03-26 株式会社三井高科技 转子铁芯的制造方法
JP2019054680A (ja) * 2017-09-19 2019-04-04 株式会社三井ハイテック 回転子鉄心の製造方法
US11646644B2 (en) 2017-09-19 2023-05-09 Mitsui High-Tec, Inc. Method for manufacturing rotor core
DE102017217937A1 (de) * 2017-10-09 2019-04-11 Zf Friedrichshafen Ag Sekundärelement für eine elektrische Maschine
JP2019134566A (ja) * 2018-01-30 2019-08-08 本田技研工業株式会社 回転電機のロータの製造方法
EP3664263A4 (fr) * 2018-10-11 2020-06-10 Kuroda Precision Industries Ltd. Gabarit de support de noyau de rotor, et dispositif et procédé de production de noyau intégré à un aimant
US11264872B2 (en) 2018-10-11 2022-03-01 Kuroda Precision Industries Ltd. Setting device for rotor core retaining jig
JP2020127293A (ja) * 2019-02-05 2020-08-20 ファナック株式会社 ロータコアの製造装置及びロータコアの製造方法、並びにロータ構造
JP7132143B2 (ja) 2019-02-05 2022-09-06 ファナック株式会社 ロータコアの製造装置及びロータコアの製造方法
US11532960B2 (en) 2019-02-05 2022-12-20 Fanuc Corporation Device for manufacturing rotor core, method for manufacturing rotor core, and rotor structure
JP2020127294A (ja) * 2019-02-05 2020-08-20 ファナック株式会社 ロータコアの製造装置及びロータコアの製造方法
US11515770B2 (en) * 2019-02-12 2022-11-29 Fanuc Corporation Device for manufacturing rotor core and method for manufacturing rotor core
CN113489193A (zh) * 2021-08-03 2021-10-08 珠海格力电器股份有限公司 电机转子、电机、空调器

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