WO2011070883A1 - Procédé de fabrication de rotor, et dispositif de fabrication à cet effet - Google Patents

Procédé de fabrication de rotor, et dispositif de fabrication à cet effet Download PDF

Info

Publication number
WO2011070883A1
WO2011070883A1 PCT/JP2010/069961 JP2010069961W WO2011070883A1 WO 2011070883 A1 WO2011070883 A1 WO 2011070883A1 JP 2010069961 W JP2010069961 W JP 2010069961W WO 2011070883 A1 WO2011070883 A1 WO 2011070883A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
manufacturing
resin
magnet insertion
insertion hole
Prior art date
Application number
PCT/JP2010/069961
Other languages
English (en)
Japanese (ja)
Inventor
浩敏 間普
吉田　康平
Original Assignee
株式会社三井ハイテック
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 株式会社三井ハイテック filed Critical 株式会社三井ハイテック
Priority to CN201080055919.0A priority Critical patent/CN102652389B/zh
Priority to US13/512,997 priority patent/US8869379B2/en
Publication of WO2011070883A1 publication Critical patent/WO2011070883A1/fr

Links

Images

Classifications

    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53143—Motor or generator

Definitions

  • the present invention relates to a method and apparatus for manufacturing a rotor in which permanent magnet pieces are respectively inserted into a plurality of magnet insertion holes formed in a rotor laminated core (rotor core) and fixed with a thermosetting resin (for example, epoxy resin). About.
  • Patent Document 1 discloses a technique (magnet molding method) in which a permanent magnet piece is inserted into a magnet insertion hole provided in a rotor laminated core and the permanent magnet piece is fixed with resin.
  • this magnet molding method at the time of resin molding, the rotor laminated iron core is sandwiched between the upper mold and the lower mold, and the resin is filled into the magnet insertion hole into which the permanent magnet piece is inserted from the surface of the rotor laminated iron core.
  • the surface of the rotor laminated core is deformed by 1) the press pressure when forming the caulking protrusions, 2) the pressure when the rotor laminated core is clamped with the lower and upper molds, and 3) the pressure when filling the resin.
  • there is a problem is generated between the rotor laminated iron core and the upper and lower molds, and the resin leaks from the gap.
  • the caulk connection part 51 has a bulge (or a depression) 52 above the caulking connection part 51.
  • the surface of the mold 53 cannot be adhered.
  • a slight gap is generated between the surface of the rotor laminated core 54 and the upper mold 53, and there is a risk of causing resin leakage during resin sealing.
  • symbols 55 and 56 in a figure show the runner (resin flow path) currently formed in the back surface of the upper mold
  • the present invention has been made in view of such circumstances, and the surface of the rotor laminated core is slightly affected by caulking connection portions (that is, caulking protrusions and bulges or depressions formed around the caulking projections) formed on the rotor laminated core.
  • An object of the present invention is to provide a method and an apparatus for manufacturing a rotor that does not cause resin leakage even when there is unevenness.
  • a plurality of iron core pieces are caulked and laminated via caulking connection portions to form a rotor laminated iron core having a magnet insertion hole, Inserting a permanent magnet piece into the magnet insertion hole; Sandwiching the rotor laminated core between the upper mold and the lower mold,
  • a rotor manufacturing method for manufacturing a rotor by filling the magnet insertion hole with resin from a resin reservoir pot formed in the upper mold or the lower mold, There is provided a method of manufacturing a rotor, wherein the caulking connection portion is arranged at the center of the resin reservoir pot to perform resin sealing on the magnet insertion hole.
  • the center of the caulking connection portion may coincide with the center of the resin reservoir pot.
  • the resin reservoir pot and the magnet insertion hole may be connected via a runner. Moreover, you may fill resin into a part of magnet insertion hole directly from a resin reservoir pot.
  • a plurality of pairs of magnet insertion holes in which the magnet insertion holes are paired are provided, Each of the magnet insertion hole pairs is formed such that the interval between the radially inner ends is wider than the interval between the radially outer ends when viewed from the axial direction of the rotor laminated core,
  • the caulking connection portion may be provided on the radially inner side of the center of the magnet insertion hole pair.
  • the diameter of the resin reservoir pot may be in the range of 3 to 10 times the maximum width of the caulking connection portion.
  • a recess due to the caulking connection portion may be formed on a surface of the rotor laminated core in contact with the upper die or the lower die on which the resin reservoir pot is formed. Good.
  • a plurality of iron core pieces are caulked and laminated via caulking connections, and a rotor laminated iron core with permanent magnet pieces inserted into each magnet insertion hole is sandwiched between the upper die and the lower die, and the upper die or the lower die is attached.
  • a rotor manufacturing apparatus for filling the magnet insertion hole with resin from the formed resin reservoir pot, A rotor manufacturing apparatus is provided in which the center of the caulking connection portion is aligned with the center of the resin reservoir pot to perform resin sealing on the magnet insertion hole.
  • the resin reservoir pot may be provided in the upper mold.
  • resin for example, thermosetting resin
  • the bulge or recess around the dowel can be positioned in the area of the resin reservoir pot by arranging the caulking connection portion at the center of the resin reservoir pot. . Since the upper mold or the lower mold in which the resin reservoir pot is formed can press a region having a high degree of parallelism on the surface of the rotor laminated core (that is, a region close to a flat surface with no difference in level), The gap generated between the upper mold or the lower mold in which the resin reservoir pot is formed is eliminated, and resin leakage can be prevented. Further, by arranging the resin reservoir pot so that the center of the caulking connection portion and the center of the resin reservoir pot coincide with each other, the bulge or the depression around the caulking connection portion can be positioned more securely in the resin reservoir pot. .
  • the center of the caulking connection area and the center of the resin accumulation pot are the same. Since the upper mold or the lower mold in which the resin reservoir pot is formed can press a region having a high degree of parallelism on the surface of the rotor laminated iron core, it is possible to prevent resin leakage. Become.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a partial longitudinal cross-sectional view of the manufacturing apparatus of the rotor which concerns on other embodiment of this invention. It is a fragmentary top view which shows the manufacturing method of the rotor which concerns on a prior art example.
  • FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5.
  • a rotor manufacturing apparatus 10 has a plurality of magnet insertion holes 12 provided around a central shaft hole of a rotor laminated core 11.
  • the inserted non-excited permanent magnet piece 13 can be sealed with resin.
  • the rotor laminated core 11 is arranged so that the protrusions of the caulking connection portions (caulking protrusions) 15 that connect the upper and lower iron core pieces 14 face the upper mold 17.
  • the rotor laminated iron core 11 is a cylindrical member in which a plurality of iron core pieces 14 are caulked and laminated via caulking connection portions 15.
  • the caulking connection portion 15 includes a protrusion protruding in one axial direction (upward in the present embodiment) of the rotor laminated core 11 and a recess formed on the back surface of the protrusion.
  • the plurality of iron core pieces 14 are in a state in which the protrusions of the caulking connection portions 15 provided on one iron core piece 14 match the concave portions of the caulking connection portions 15 of the iron core pieces 14 stacked on the iron core pieces 14.
  • the core pieces 14 are connected to each other by pressing up and down (in the axial direction of the rotor laminated core 11) and caulking the protrusions and recesses of the caulking connection portion 15.
  • the rotor laminated iron core 11 is formed in the upper die 17 with the upper die 17 and the lower die 18 being sandwiched.
  • An epoxy resin 21, which is an example of a sealing resin, is filled into the magnet insertion hole 12 from the resin reservoir pot (cal) 19 that is formed on the upper mold 17 through the runners 20 and 20 a, and the magnet insertion hole 12 is sealed. Is done.
  • the center of the resin reservoir pot 19 having a circular cross section formed in the upper die 17 is formed on the radially inner side of the center of each magnet insertion hole pair 22 of the rotor laminated core 11, and the caulking connection portion 15.
  • the magnet insertion hole pair 22 has two magnet insertion holes 12 in a "C" shape (inverted V shape with English bottom cut out, Chinese The distance between the radially inner ends is wider than the distance between the radially outer ends.
  • the caulking connection portion 15 is a bulge formed by V-shaped caulking when viewed from the axial direction and when viewed from the axial cross-section, or by circular half punching when viewed from the axial direction. Sometimes).
  • the diameter of the resin reservoir pot 19 is 3 to 10 times (more preferably 4 to 8 times) the maximum width of the caulking connection portion 15. As shown in FIG. 3, in the process of forming the caulking connection portion 15 on the hollow disk-shaped iron core piece 14, the surface of the rotor laminated iron core 11 around the caulking connection portion 15 is deformed so as to swell upward. Further, since the swelling around the caulking connection portion 15 is swelled symmetrically in the resin reservoir pot 19 with respect to the center of the resin reservoir pot 19, the swelling around the caulking connection portion 15 is the resin reservoir pot. It can be located in the area of the pot 19, and there is no gap for the resin to leak between the periphery of the resin reservoir pot 19 and the surface of the rotor laminated core 11.
  • the manufacturing method of the rotor which concerns on one embodiment of this invention is demonstrated.
  • the permanent magnet piece 13 is inserted into each magnet insertion hole 12 of the rotor laminated core 11, and the upper die 17 and the lower die 17 are
  • the rotor laminated iron core 11 is disposed between the molds 18 so that the center of the resin reservoir pot 19 provided in the upper mold 17 and the center position of the caulking connection portion 15 formed on the rotor laminated iron core 11 coincide with each other.
  • the laminated iron core 11 is positioned.
  • the rotor laminated core 11 is disposed between the upper die 17 and the lower die 18 so that the protrusions of the caulking connection portions 15 of the iron core pieces 14 face upward. It is also possible to place the iron core 11 between the upper mold 17 and the lower mold 18 with the iron core 11 placed on a transport tray (for example, described in Japanese Patent No. 3786946).
  • the transport tray has positioning means for the rotor laminated core 11.
  • the epoxy resin 21 is poured into the resin reservoir pot 19 of the upper mold 17 to be melted, and the melted epoxy resin 21 is pushed by the plunger 23 from above to runner 20. , 20a through the magnet insertion hole 12.
  • the resin reservoir pot 19 covers the bulge caused by the caulking connection portion 15.
  • the gap between the surfaces of the upper mold 17 and the rotor laminated core 11 is eliminated, and the occurrence of resin leakage is eliminated.
  • FIG. 4 shows a rotor manufacturing apparatus 26 according to another embodiment of the present invention. Note that the same constituent elements as those in FIG. In this embodiment, the rotor laminated core 27 is arranged so that the projections of the caulking connection portions 28 of the core pieces 14 face the lower mold, and around the caulking connection portion 28 on the upper surface of the rotor laminated core 27. Is formed with a depression (may be bulged in some cases).
  • the caulking connection portion 28 is disposed at the center of the resin reservoir pot 19, when the rotor laminated core 27 is clamped with the upper mold 17, the periphery of the resin reservoir pot 19 is flat. Thus, no resin leakage occurs when the resin is sealed after clamping.
  • the resin reservoir pot 19 is arranged on the surface (upper surface in this figure) of the rotor laminated iron core 27 on the side where the depression by the caulking connection portion 28 is formed. The surfaces of the child laminated iron cores 27 are easily adhered to each other, and a gap that causes resin leakage is unlikely to occur.
  • the swollenness due to the caulking connection portion 15 has high rigidity, but is less likely to be in close contact with the upper mold 17. Therefore, if the resin reservoir pot 19 is enlarged and the bulge generated around the caulking connection portion 15 is not positioned almost completely within the region of the resin accumulating pot 19, resin leakage is likely to occur. It is preferable that the recess generated by the formation of the caulking connection portion 15 is located in the resin reservoir pot 19 with the projecting direction of the resin facing the direction opposite to the resin sealing side.
  • the present invention is not limited to the above-described embodiment.
  • the resin storage pot can be directly used without providing a runner.
  • the present invention is applicable even when the magnet insertion hole is filled with resin.
  • the resin reservoir pot (cal) is provided in the upper mold, but the present invention is also applied to the case where the resin reservoir pot is provided in the lower mold and the resin is filled from the lower side of the magnet insertion hole.
  • the bulge or depression around the dowel can be positioned in the area of the resin reservoir pot by arranging the caulking connection portion at the center of the resin reservoir pot. it can. Since the upper mold or the lower mold in which the resin reservoir pot is formed can press a region having a high degree of parallelism on the surface of the rotor laminated core (that is, a region close to a flat surface with no difference in level), The gap generated between the upper mold or the lower mold in which the resin reservoir pot is formed is eliminated, and resin leakage can be prevented. Further, by arranging the resin reservoir pot so that the center of the caulking connection portion and the center of the resin reservoir pot coincide with each other, the bulge or the depression around the caulking connection portion can be positioned more securely in the resin reservoir pot. .

Abstract

La présente invention concerne un dispositif et un procédé de fabrication d'un rotor évitant les fuites de résine pendant le processus de prise de la résine, même cas d'un noyau rotorique en fer feuilleté dont la surface présente quelques bosses résultant des matages de liaison pratiqués sur le noyau rotorique en fer feuilleté. Le dispositif et le procédé de fabrication d'un rotor selon l'invention impliquent les opérations suivantes: formation d'un noyau rotorique en fer feuilleté (11) qui est un feuilletage maté, constitué d'une pluralité d'éléments de rotor en fer (14) matés (15) les uns aux autres; insertion d'un morceau d'aimant permanent (13) dans le trou d'insertion d'aimant (12) du noyau rotorique en fer feuilleté (11); prise en sandwich du noyau rotorique en fer feuilleté (11) entre un moule supérieur (17) et un moule inférieur (18); et comblement du trou d'insertion d'aimant (12) au moyen d'une résine que l'on introduit à partir d'un pot de transfert rempli de résine (culot de moulage) (19) réalisé dans le moule supérieur (17) ou dans le moule inférieur (18). Pour obturer avec la résine le trou d'insertion d'aimant (12), on aligne le centre du pot de transfert rempli de résine (19) sur le centre des matages (15).
PCT/JP2010/069961 2009-12-09 2010-11-09 Procédé de fabrication de rotor, et dispositif de fabrication à cet effet WO2011070883A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080055919.0A CN102652389B (zh) 2009-12-09 2010-11-09 用于制造转子的方法和装置
US13/512,997 US8869379B2 (en) 2009-12-09 2010-11-09 Method for producing rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009279690A JP5560031B2 (ja) 2009-12-09 2009-12-09 回転子の製造方法及び製造装置
JP2009-279690 2009-12-09

Publications (1)

Publication Number Publication Date
WO2011070883A1 true WO2011070883A1 (fr) 2011-06-16

Family

ID=44145436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/069961 WO2011070883A1 (fr) 2009-12-09 2010-11-09 Procédé de fabrication de rotor, et dispositif de fabrication à cet effet

Country Status (4)

Country Link
US (1) US8869379B2 (fr)
JP (1) JP5560031B2 (fr)
CN (1) CN102652389B (fr)
WO (1) WO2011070883A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10396641B2 (en) * 2013-02-28 2019-08-27 Mitsubishi Electric Corporation Resin injection method into laminated core, and rotating electric machine using the resin injection method
JP6301822B2 (ja) 2014-02-24 2018-03-28 株式会社三井ハイテック 鉄心片の打ち抜き方法
JP6213654B2 (ja) * 2015-11-12 2017-10-18 ダイキン工業株式会社 モータコア、およびそれを用いたモータならびに圧縮機
JP6597594B2 (ja) * 2016-12-27 2019-10-30 トヨタ自動車株式会社 回転子製造装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004357347A (ja) * 2003-05-27 2004-12-16 Toyota Motor Corp 回転電機用ロータ
JP2007215301A (ja) * 2006-02-08 2007-08-23 Toyota Motor Corp ロータの製造方法
JP2007236020A (ja) * 2006-02-27 2007-09-13 Toyota Motor Corp ロータおよび電動車両

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806169A (en) * 1995-04-03 1998-09-15 Trago; Bradley A. Method of fabricating an injected molded motor assembly
JP3786946B1 (ja) 2005-01-24 2006-06-21 株式会社三井ハイテック 永久磁石の樹脂封止方法
JP4143631B2 (ja) * 2005-09-01 2008-09-03 トヨタ自動車株式会社 ロータの製造方法
CN102598490B (zh) * 2010-05-18 2014-06-18 株式会社三井高科技 转子层叠铁心的制造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004357347A (ja) * 2003-05-27 2004-12-16 Toyota Motor Corp 回転電機用ロータ
JP2007215301A (ja) * 2006-02-08 2007-08-23 Toyota Motor Corp ロータの製造方法
JP2007236020A (ja) * 2006-02-27 2007-09-13 Toyota Motor Corp ロータおよび電動車両

Also Published As

Publication number Publication date
US8869379B2 (en) 2014-10-28
CN102652389A (zh) 2012-08-29
US20120227249A1 (en) 2012-09-13
JP2011125116A (ja) 2011-06-23
JP5560031B2 (ja) 2014-07-23
CN102652389B (zh) 2015-08-12

Similar Documents

Publication Publication Date Title
US8020280B2 (en) Rotor manufacturing method
JP5451934B1 (ja) 積層鉄心の製造方法
JP5981295B2 (ja) 積層鉄心の樹脂封止方法
US7854056B2 (en) Production method of a rotor
WO2012081316A1 (fr) Procédé de fabrication de noyau de fer laminé
WO2011070883A1 (fr) Procédé de fabrication de rotor, et dispositif de fabrication à cet effet
JP6069250B2 (ja) ロータ製造装置およびロータ製造方法
JP6206438B2 (ja) 積層型ロータ及びその製造方法
JP4948040B2 (ja) 回転子積層鉄心の樹脂封止方法
JP2016093006A (ja) 回転子の製造方法
JP5734148B2 (ja) 磁石埋込型回転子及びその製造方法
JP2015053764A (ja) 永久磁石付き回転子及びその製造方法
JP2007336718A (ja) 回転子積層鉄心及びその樹脂封止方法
CN105576914A (zh) 转子的制造方法
JP5981225B2 (ja) 積層鉄心の製造方法
JP6531168B2 (ja) 磁石埋め込み型コアの樹脂充填装置および樹脂充填方法
JP4968928B2 (ja) 永久磁石モータ及びその製造方法
JP5981536B2 (ja) コンタクトまたは眼内レンズを製造する鋳型および方法
JP2015097458A (ja) 永久磁石埋め込み型ロータ、その製造方法、及び樹脂封止装置
JP7172051B2 (ja) ロータコアの製造装置
JP2018501774A (ja) モーターのローター
JP5794848B2 (ja) 積層鉄心の製造方法
JP5911312B2 (ja) 回転子鉄心の製造方法
JP2013123316A (ja) ロータコアおよびその製造方法
JP7442957B2 (ja) ロータコアの製造装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080055919.0

Country of ref document: CN

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

Ref document number: 10835805

Country of ref document: EP

Kind code of ref document: A1

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

Ref document number: 10835805

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 13512997

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10835805

Country of ref document: EP

Kind code of ref document: A1