WO2013175541A1 - Rotor de type à aimant permanent intégré pour moteur - Google Patents

Rotor de type à aimant permanent intégré pour moteur Download PDF

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Publication number
WO2013175541A1
WO2013175541A1 PCT/JP2012/003422 JP2012003422W WO2013175541A1 WO 2013175541 A1 WO2013175541 A1 WO 2013175541A1 JP 2012003422 W JP2012003422 W JP 2012003422W WO 2013175541 A1 WO2013175541 A1 WO 2013175541A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
adhesive
rotor
hole
embedded
Prior art date
Application number
PCT/JP2012/003422
Other languages
English (en)
Japanese (ja)
Inventor
昂史 井手下
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 CN201280072665.2A priority Critical patent/CN104247215B/zh
Priority to PCT/JP2012/003422 priority patent/WO2013175541A1/fr
Priority to JP2014516518A priority patent/JP5748911B2/ja
Publication of WO2013175541A1 publication Critical patent/WO2013175541A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—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]

Definitions

  • the present invention relates to a rotor used in a permanent magnet motor, and more particularly to a permanent magnet embedded rotor of a motor provided with a plurality of permanent magnets inside a rotor core.
  • a rotating shaft is fitted in the central portion of the rotor core, and a plurality of permanent magnet embedded holes are formed in the vicinity of the outer periphery along the circumferential direction of the rotor core.
  • a configuration is adopted in which a permanent magnet formed in a size that can be stored in the permanent magnet embedded hole is embedded in the permanent magnet embedded hole.
  • an adhesive is applied to both surfaces of the permanent magnet along the rotation axis direction facing the permanent magnet embedding hole, and the permanent magnet is embedded in the permanent magnet embedding hole by this adhesive. Is fixed (for example, refer to Patent Document 1).
  • the conventional permanent magnet embedded rotor is configured as described above, for example, when the permanent magnet is embedded in the permanent magnet embedded hole, an adhesive applied to the permanent magnet at the edge of the permanent magnet embedded hole is used. As a result, the adhesive capacity and the adhesive area are not fixed, and the unbalance amount of the rotor increases. In addition, because the adhesive capacity and the adhesive area cannot be secured stably, and the adhesive strength is not secured, the permanent magnet is peeled off on both surfaces coated with adhesive by the torque and centrifugal force when the rotor is started and stopped. There have been problems such as damage to the rotor core and, consequently, the rotor due to repeated contact with the thin portions of the rotor core on both sides in the circumferential direction inside the embedded hole.
  • the bonding capacity and bonding area on the inner surface side of the rotor core radial direction of the permanent magnet are small, the bonding strength on the inner surface side becomes weak, and the torque and centrifugal force at the time of starting and stopping the rotor act to rotate the permanent magnet.
  • the bonded part on the inner surface side of the core of the core is peeled off and fixed only on the outer surface of the core of the rotor core in the radial direction.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a permanent magnet motor having a structure in which the amount of rotor unbalance is suppressed and the permanent magnet is stably fixed. It is to obtain a magnet embedded rotor.
  • the rotation shaft is fitted in the center of the rotor core, provided at equal intervals in the rotor core circumferential direction by the number of poles of the rotor, and penetrated in the rotation axis direction.
  • the permanent magnet includes a rotating shaft.
  • An adhesive injection hole penetrating in the direction and an adhesive injection hole connected to the adhesive injection hole on the surface having the rotation axis direction as the long side and the rotor core circumferential direction as the short side are provided, and from the adhesive injection hole to the rotor
  • the adhesive that fixes the iron core and the permanent magnet is ejected.
  • the permanent magnet is arranged at a desired position of the permanent magnet embedding hole, and then the adhesive capacity and the adhesive area determined at the predetermined position are set.
  • Adhesive can be applied at the edge of the permanent magnet, so that the desired adhesive strength can be obtained without peeling off the adhesive at the edge of the permanent magnet embedding hole, the unbalance amount of the rotor is suppressed, and the permanent magnet is rotated by the rotor.
  • the rotor can be prevented from being broken without being peeled off from the core.
  • FIG. 1 is an axial cross-sectional view showing a configuration of a permanent magnet embedded rotor of a motor showing Embodiment 1 of the present invention. It is a three-plane figure of the permanent magnet of the permanent magnet embedded type rotor of the motor which shows Example 1 of this invention. It is an electromagnetic analysis result of the magnetic flux line of the permanent magnet embedding type
  • FIG. 1 is a front view showing the configuration of an embedded permanent magnet rotor of a motor showing Embodiment 1 of the present invention
  • FIG. 2 shows the configuration of the embedded permanent magnet rotor of the motor showing Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view in the axial direction, and is a cross-sectional view taken along line XX ′ in FIG.
  • FIG. 3 is a three-sided view of the permanent magnet of the embedded permanent magnet rotor of the motor showing Embodiment 1 of the present invention
  • FIG. 4 is a magnetic flux line of the embedded permanent magnet rotor of the motor showing Embodiment 1 of the present invention. It is an electromagnetic analysis result.
  • reference numeral 1 denotes a rotor core in which a plurality of silicon steel plates having the same shape are stacked and punched into a predetermined shape, for example, a shape having ten permanent magnet embedding holes as shown in FIG. 1.
  • Reference numeral 2 denotes a rotating shaft fitted in the central portion of the rotor core 1
  • 3 denotes a rotor core that is provided on the rotor core 1 at equal intervals corresponding to the number of poles. For example, as shown in FIG.
  • a permanent magnet embedding hole having a rectangular shape penetrating in the axial direction of the rotary shaft 2 with the circumferential direction of 1 as the long side and the radial direction as the short side, 4 is embedded in the permanent magnet embedding hole 3 for the number of poles, for example, As shown in FIG. 1, there are ten permanent magnets, and the permanent magnet 4 is composed of a neodymium rare earth magnet.
  • 5a is an inner surface side groove
  • 5b is an outer surface side groove
  • the inner surface side groove 5a and the outer surface side groove 5b are provided in the permanent magnet embedded hole 3 along the axial direction of the rotating shaft 2.
  • the adhesive injection hole 8b has an opening on the inner and outer surface along the radial direction of the rotor core 1 with the axial direction of the rotating shaft 2 of the permanent magnet 4 as the long side and the circumferential direction of the rotor core 1 as the short side.
  • the adhesive injection hole 7 in the vertical direction 9 is an iron powder mixed in the adhesive, and 10 is an adhesive for fixing the permanent magnet 4 to the permanent magnet embedding hole 3.
  • the permanent magnet 4 has a rectangular cross-sectional shape in the axial direction of the rotating shaft 2 and is formed in a size that can be accommodated in the permanent magnet embedded hole 3.
  • An adhesive injection hole 7 that penetrates along the axial direction of the rotary shaft 2 with the inlet 6 as an entrance and exit, and an inner surface side adhesive that is coupled to the adhesive injection hole 7 in the vertical direction and penetrates along the radial direction of the rotor core 1
  • Each has an agent ejection hole 8a and an outer surface side adhesive ejection hole 8b.
  • the adhesive injection hole 7, the inner surface side adhesive ejection hole 8 a, and the outer surface side adhesive ejection hole 8 b are provided in the central portion in the circumferential direction of the permanent magnet 4, the magnetic characteristics of the rotor can be prevented from being deteriorated.
  • the adhesive core of the adhesive 10 ejected from the inner surface side adhesive ejection hole 8 a and the outer surface side adhesive ejection hole 8 b is used as the center of the inner surface in the radial direction of the rotor core 1 of the permanent magnet embedded hole 3. That is, the inner surface side groove 5a and the outer surface side groove 5b, which are thin flat grooves, are provided at positions facing the inner surface side adhesive jet hole 8a and the outer surface side adhesive jet hole 8b along the axial direction of the rotary shaft 2, respectively. .
  • the adhesive 10 passes through the adhesive injection hole 7 and is bonded to the adhesive injection hole 7 in the vertical direction.
  • the adhesive 10 ejected from the inner surface side adhesive jetting hole 8a and the outer surface side adhesive jetting hole 8b is accumulated in the inner surface side groove 5a and the outer surface side groove 5b.
  • the permanent magnet 4 With the adhesive injection hole 7, the inner surface side adhesive ejection hole 8 a, and the outer surface side adhesive ejection hole 8 b, the permanent magnet 4 is placed at a desired position in the permanent magnet embedded hole 3.
  • the adhesive 10 can be applied to a predetermined position with a predetermined adhesive capacity and adhesive area, so that the adhesive 10 is not peeled off at the edge of the permanent magnet embedding hole 3 and is highly reliable. Adhesion becomes possible.
  • the inner surface side groove 5a and the outer surface side groove 5b serve as an adhesive reservoir for the adhesive 10, and the inner surface side adhesive ejection hole 8a and the outer surface side adhesive ejection hole.
  • the inner surface side adhesive ejection hole 8a If the diameter is designed to be larger than the diameter of the outer surface side adhesive ejection hole 8b, the inner surface side adhesive 10 is bonded in a larger amount than the outer surface side due to the area difference of the adhesive ejection hole. As a result, the adhesive strength of the surface facing the inner surface side adhesive ejection hole 8a of the permanent magnet 4 is increased, and only the surface facing the outer surface side adhesive ejection hole 8b of the permanent magnet 4 is bonded to the rotor core 1.
  • the adhesive 10 is used by filling the space of the adhesive injection hole 7, the inner surface side adhesive ejection hole 8 a, and the outer surface side adhesive ejection hole 8 b using a mixed material of iron powder 9 and the adhesive 10.
  • the magnetic properties of the rotor are improved by the influence of the iron powder 9 rather than filling the space, and the performance of the motor can be improved.
  • Example 2 In Example 1, the inner surface side adhesive ejection holes 8a and the outer surface side adhesive ejection holes 8b are arranged so as to be coaxial along the radial direction of the rotor core 1 of the permanent magnet 4, and the same number of adhesive ejection holes. However, the number of the adhesive ejection holes along the radial direction of the rotor core 1 may be different so as to be different between the inner surface side and the outer surface side.
  • FIG. 5 is an axial cross-sectional view showing a configuration of a permanent magnet embedded rotor of a motor according to Embodiment 2 of the present invention, a cross-sectional view taken along line XX ′ in FIG. 1, and FIG. It is a three-plane figure of the permanent magnet of the permanent magnet embedded type rotor of the motor which shows Example 2 of invention.
  • the number of adhesive ejection holes is changed between the inner surface side and the outer surface side so that the number of outer surface side adhesive ejection holes 81b is smaller than the inner surface side adhesive ejection holes 81a. Designed to.
  • the adhesive amount of the adhesive 10 on the surface facing the inner surface side adhesive ejecting hole 8a of the permanent magnet 4 is the surface facing the outer surface side adhesive ejecting hole 8b. More than.
  • the number of adhesive ejection holes is changed between the inner surface side and the outer surface side so that the number of outer surface side adhesive ejection holes 81b is smaller than the inner surface side adhesive ejection holes 81a, and the inner surface side adhesion is also performed. If the diameter of the agent ejection hole 81a is designed to be larger than the diameter of the outer surface side adhesive ejection hole 81b, the inner surface side adhesive 10 is larger than the outer surface side due to the area difference of the adhesive ejection hole. Glued.
  • Example 3 the inner surface side adhesion is performed at the center of the inner surface of the rotor core 1 in the radial direction of the permanent magnet embedded hole 3 provided in the rotor core 1 as a groove for storing the adhesive 10, that is, along the axial direction of the rotating shaft 2.
  • the case where the inner surface side groove 5a and the outer surface side groove 5b, which are thin flat grooves, are respectively provided at positions facing the agent ejection hole 8a and the outer surface side adhesive ejection hole 8b has been described. The same effect can be obtained by providing a flat groove for accumulation on the surface of the permanent magnet 4 side.
  • FIG. 7 is a front view showing a configuration of a permanent magnet embedded rotor of a motor according to Embodiment 3 of the present invention
  • FIG. 8 shows a configuration of a permanent magnet embedded rotor of the motor according to Embodiment 3 of the present invention
  • FIG. 8 is a cross-sectional view in the axial direction and shows a cross-sectional view along line YY ′ in FIG. 7.
  • FIG. 9 is a three-sided view of the permanent magnet of the embedded permanent magnet rotor of the motor showing Embodiment 3 of the present invention.
  • FIG. 9 is a three-sided view of the permanent magnet of the embedded permanent magnet rotor of the motor showing Embodiment 3 of the present invention.
  • a thin flat inner surface side groove 11a and an outer surface side groove 11b are provided so as to overlap the inner surface side adhesive jet hole 8a and the outer surface side adhesive jet hole 8b along the direction.
  • the inner surface side groove 11 a and the outer surface side groove 11 b are bonded to the inner surface side groove 11 b in the direction perpendicular to the adhesive injection hole 7, and penetrated along the radial direction of the rotor core 1.
  • Each agent ejection hole 8b is provided.
  • the inner surface side adhesive jetting hole 8a and the outer surface side adhesive jetting are performed at the center in the radial direction inner and outer surfaces of the rotor core 1 of the permanent magnet embedded hole 3 described in the first embodiment, that is, along the axial direction of the rotating shaft 2.
  • the adhesive 10 is stored in both the inner surface side groove 11a and the outer surface side groove 11b so as to be permanent.
  • the magnet 4 can be positioned and fixed in the permanent magnet embedded hole 3.
  • the adhesive injection hole 7 penetrates along the axial direction of the rotary shaft 2 with the adhesive injection port 6 provided at the center of both surfaces of the permanent magnet 4 along the axial direction of the rotary shaft 2.
  • the present invention is not limited to this, and one end of the penetrating adhesive injection hole 7 may be designed to be sealed.
  • FIG. 10 is a cross-sectional view in the axial direction showing the configuration of the permanent magnet embedded rotor of the motor according to the fourth embodiment of the present invention.
  • FIG. 10 is a cross-sectional view taken along line XX ′ in FIG. It is a front view of the steel plate without the permanent magnet embedding hole located in the edge part of the rotor core of the permanent magnet embedding type
  • the silicon steel plate 12 without the permanent magnet embedding hole 3 is provided at one end of the rotor core 1 so that the adhesive inlet 6 is formed. Only one direction can be determined.
  • the adhesive 10 that is ejected from the hole on the opposite side of the adhesive injection port 6 when the adhesive 10 is injected, and all the adhesive 10 injected from the adhesive injection port 6 is connected to the inner surface side adhesive ejection hole 8a. Since the ejection is performed from the outer surface side adhesive ejection hole 8b, the permanent magnet 4 can be positioned and fixed in the permanent magnet embedded hole 3.
  • FIG. 12 is a front view showing a configuration of a permanent magnet embedded rotor of a motor according to a fifth embodiment of the present invention.
  • FIG. 13 shows a permanent magnet embedded rotor of the motor according to the fifth embodiment of the present invention. It is a three-view figure of a permanent magnet.
  • 15 is a rotor core
  • 25 is a rotary shaft fitted in the center of the rotor core
  • 35 is provided in the rotor core 15 at equal intervals corresponding to the number of poles, for example, as shown in FIG. 12.
  • the ten permanent magnet embedded holes 35 are formed in a rectangular shape that penetrates in the axial direction of the rotary shaft 25 with the circumferential direction of the rotor core 15 as the short side and the radial direction as the long side.
  • ten permanent magnets as shown in FIG. 55 a is an inner surface side groove
  • 55 b is an outer surface side groove
  • the inner surface side groove 55 a and the outer surface side groove 55 b are provided in the permanent magnet embedded hole 35 along the axial direction of the rotating shaft 25.
  • the adhesive ejection hole 85b has an opening on the inner and outer surfaces along the radial direction of the rotor core 15 with the axial direction of the rotating shaft 25 of the permanent magnet 45 as the long side and the circumferential direction of the rotor core 15 as the short side. And bonded to the adhesive injection hole 75 in the vertical direction.
  • FIG. 14 is a front view showing a configuration of a permanent magnet embedded rotor of a motor according to Embodiment 6 of the present invention
  • FIG. 15 shows a permanent magnet of a permanent magnet embedded rotor of a motor according to Embodiment 6 of the present invention.
  • 16 is a rotor core
  • 26 is a rotating shaft fitted in the center of the rotor core
  • 36 is provided in the rotor core 16 at equal intervals corresponding to the number of poles.
  • the ten permanent magnet embedded holes 36 are formed in such a manner that the circumferential direction of the rotor core 16 is the long side and the radial direction is the short side and penetrates in the axial direction of the rotary shaft 26.
  • ten permanent magnets are embedded, as shown in FIG. 56 a is an inner surface side groove, 56 b is an outer surface side groove, and the inner surface side groove 56 a and the outer surface side groove 56 b are provided in the permanent magnet embedded hole 36 along the axial direction of the rotating shaft 26.
  • the agent ejection hole 86b has an opening on the inner and outer surface along the radial direction of the rotor core 16 with the axial direction of the rotating shaft 26 of the permanent magnet 46 as the long side and the circumferential direction of the rotor core 16 as the short side.
  • the adhesive injection holes 76 are connected to each other in the vertical direction.
  • Example 7 In the first embodiment, the case where the axial cross section of the permanent magnet 4 is a quadrangular shape has been described. However, one long side of the rotor core circumferential direction of the axial cross section is an arc, the other is a straight line, and the radial direction is A structure with a short side may be used.
  • FIG. 16 is a front view showing the configuration of a permanent magnet embedded rotor of a motor according to Embodiment 7 of the present invention
  • FIG. 17 shows the permanent magnet of the embedded permanent magnet rotor of the motor according to Embodiment 7 of the present invention.
  • FIG. 16 is a front view showing the configuration of a permanent magnet embedded rotor of a motor according to Embodiment 7 of the present invention
  • FIG. 17 shows the permanent magnet of the embedded permanent magnet rotor of the motor according to Embodiment 7 of the present invention.
  • 16 and 17, 17 is a rotor core
  • 27 is a rotating shaft fitted into the center of the rotor core 17
  • 37 is provided in the rotor core 17 at equal intervals corresponding to the number of poles, for example, as shown in FIG. 16.
  • 10 permanent magnet embedded holes having a shape penetrating in the axial direction of the rotating shaft 27 with one piece of the long side in the circumferential direction of the rotor core 17 being an arc, the other piece being a straight line, and the radial direction being a short side , 47 are the number of poles embedded in the permanent magnet embedded hole 37, for example, 10 permanent magnets as shown in FIG.
  • 57 a is an inner surface side groove
  • 57 b is an outer surface side groove
  • the inner surface side groove 57 a and the outer surface side groove 57 b are provided in the permanent magnet embedded hole 37 along the axial direction of the rotating shaft 27.
  • 67 is provided along the axial direction of the rotary shaft 27 at the center of both surfaces in a shape in which one piece of the circumferential long side of the rotor core 17 of the permanent magnet 47 is an arc, the other piece is a straight line, and the radial direction is a short side.
  • the adhesive injection port 77 is an adhesive injection hole penetrating the permanent magnet 47 with the adhesive injection port 67 as an entrance
  • 87a is an inner surface side adhesive jet hole
  • 87b is an outer surface side adhesive jet port
  • the inner surface side The adhesive ejection hole 87a and the outer surface side adhesive ejection hole 87b are along the radial direction of the rotor core 17 with the axial direction of the rotating shaft 27 of the permanent magnet 47 as the long side and the circumferential direction of the rotor core 17 as the short side.
  • the inner and outer surfaces have openings and are connected to the adhesive injection holes 77 in the vertical direction.

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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

Les rotors pour moteurs de l'art antérieur présentaient certains problèmes tels que le décollement d'un adhésif appliqué sur un aimant permanent au niveau d'une partie bord d'un orifice d'intégration d'aiment permanent, l'inconstance de la capacité et de la surface d'adhésion, l'augmentation de la valeur de déséquilibre d'un rotor de type à aimant permanent intégré pour moteur. L'invention a pour objectif de résoudre ces problèmes, et d'obtenir un rotor pour moteur possédant une structure dans laquelle un aimant permanent est fixé de manière stable. Dans cet aimant permanent (4), sont agencés : un orifice d'injection d'adhésif (7) qui traverse la partie centrale d'un noyau de rotor (1) dans la direction axiale d'un axe de rotation (2) ; et des orifices de rejet d'adhésif (8a, 8b) verticalement liés à l'orifice d'injection d'adhésif (7) au niveau d'une surface prenant la direction axiale d'un axe de rotation (2) pour longueur et la direction périphérique du noyau de rotor (1) pour largeur. Un adhésif (10) qui fixe l'aimant permanent (4) à la partie centrale d'un noyau de rotor (1), est rejeté par les orifices de rejet d'adhésif (8a, 8b).
PCT/JP2012/003422 2012-05-25 2012-05-25 Rotor de type à aimant permanent intégré pour moteur WO2013175541A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280072665.2A CN104247215B (zh) 2012-05-25 2012-05-25 电动机的永磁体埋入型转子
PCT/JP2012/003422 WO2013175541A1 (fr) 2012-05-25 2012-05-25 Rotor de type à aimant permanent intégré pour moteur
JP2014516518A JP5748911B2 (ja) 2012-05-25 2012-05-25 モータの永久磁石埋め込み型回転子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/003422 WO2013175541A1 (fr) 2012-05-25 2012-05-25 Rotor de type à aimant permanent intégré pour moteur

Publications (1)

Publication Number Publication Date
WO2013175541A1 true WO2013175541A1 (fr) 2013-11-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/003422 WO2013175541A1 (fr) 2012-05-25 2012-05-25 Rotor de type à aimant permanent intégré pour moteur

Country Status (3)

Country Link
JP (1) JP5748911B2 (fr)
CN (1) CN104247215B (fr)
WO (1) WO2013175541A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111697714A (zh) * 2019-03-12 2020-09-22 日本电产株式会社 层叠铁芯、定子以及转子

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110957827A (zh) * 2019-12-03 2020-04-03 重庆宝迪科技有限公司 一种有利于保证磁路对称的转子冲片结构
JP7565830B2 (ja) 2021-03-11 2024-10-11 本田技研工業株式会社 ロータ、回転電機、ロータの製造方法および磁石

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Publication number Priority date Publication date Assignee Title
JP2001346345A (ja) * 2000-05-31 2001-12-14 Sodick Co Ltd 同期機ロータ
JP2005269804A (ja) * 2004-03-19 2005-09-29 Toyota Motor Corp 回転電機
JP2006174655A (ja) * 2004-12-17 2006-06-29 Nidec Sankyo Corp モータおよびその製造方法

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Publication number Priority date Publication date Assignee Title
JP2007306726A (ja) * 2006-05-12 2007-11-22 Mitsubishi Electric Corp 磁石埋込型回転子及び成形金型
JP2009240109A (ja) * 2008-03-28 2009-10-15 Brother Ind Ltd 電動モータ
JP2009284720A (ja) * 2008-05-26 2009-12-03 Yaskawa Electric Corp 永久磁石形同期電動機

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Publication number Priority date Publication date Assignee Title
JP2001346345A (ja) * 2000-05-31 2001-12-14 Sodick Co Ltd 同期機ロータ
JP2005269804A (ja) * 2004-03-19 2005-09-29 Toyota Motor Corp 回転電機
JP2006174655A (ja) * 2004-12-17 2006-06-29 Nidec Sankyo Corp モータおよびその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111697714A (zh) * 2019-03-12 2020-09-22 日本电产株式会社 层叠铁芯、定子以及转子

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CN104247215B (zh) 2016-11-09
CN104247215A (zh) 2014-12-24
JPWO2013175541A1 (ja) 2016-01-12
JP5748911B2 (ja) 2015-07-15

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