JP3723428B2 - 動圧軸受モータ - Google Patents

動圧軸受モータ Download PDF

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Publication number
JP3723428B2
JP3723428B2 JP2000239121A JP2000239121A JP3723428B2 JP 3723428 B2 JP3723428 B2 JP 3723428B2 JP 2000239121 A JP2000239121 A JP 2000239121A JP 2000239121 A JP2000239121 A JP 2000239121A JP 3723428 B2 JP3723428 B2 JP 3723428B2
Authority
JP
Japan
Prior art keywords
bearing
motor
dynamic pressure
fixed
holding member
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2000239121A
Other languages
English (en)
Japanese (ja)
Other versions
JP2002058198A5 (enExample
JP2002058198A (ja
Inventor
正義 斎地
岳彦 矢沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Instruments Corp
Original Assignee
Nidec Sankyo Corp
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 Nidec Sankyo Corp filed Critical Nidec Sankyo Corp
Priority to JP2000239121A priority Critical patent/JP3723428B2/ja
Priority to CNB011325399A priority patent/CN1188943C/zh
Priority to US09/919,370 priority patent/US6614139B2/en
Publication of JP2002058198A publication Critical patent/JP2002058198A/ja
Publication of JP2002058198A5 publication Critical patent/JP2002058198A5/ja
Application granted granted Critical
Publication of JP3723428B2 publication Critical patent/JP3723428B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Sliding-Contact Bearings (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Mounting Of Bearings Or Others (AREA)
JP2000239121A 2000-08-07 2000-08-07 動圧軸受モータ Expired - Fee Related JP3723428B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000239121A JP3723428B2 (ja) 2000-08-07 2000-08-07 動圧軸受モータ
CNB011325399A CN1188943C (zh) 2000-08-07 2001-07-20 动压式轴承电动机及其制造方法
US09/919,370 US6614139B2 (en) 2000-08-07 2001-07-30 Motor having a dynamic pressure bearing apparatus and a manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000239121A JP3723428B2 (ja) 2000-08-07 2000-08-07 動圧軸受モータ

Publications (3)

Publication Number Publication Date
JP2002058198A JP2002058198A (ja) 2002-02-22
JP2002058198A5 JP2002058198A5 (enExample) 2004-11-18
JP3723428B2 true JP3723428B2 (ja) 2005-12-07

Family

ID=18730712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000239121A Expired - Fee Related JP3723428B2 (ja) 2000-08-07 2000-08-07 動圧軸受モータ

Country Status (3)

Country Link
US (1) US6614139B2 (enExample)
JP (1) JP3723428B2 (enExample)
CN (1) CN1188943C (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200506A1 (de) * 2002-01-09 2003-07-24 Minebea Co Ltd Verfahren zum Herstellen eines Spindelmotors und Spindelmotor für ein Festplattenlaufwerk
US7059771B2 (en) * 2002-05-17 2006-06-13 Nidec Sankyo Corporation Motors with oil dynamic pressure bearing, oil dynamic pressure bearing devices and method for manufacturing the same
JP3921517B2 (ja) * 2002-05-27 2007-05-30 日本電産株式会社 オイル動圧軸受装置、およびそれを用いた軸回転型モータ
TW547869U (en) * 2002-07-10 2003-08-11 Hon Hai Prec Ind Co Ltd Bearing device for motor
JP4236891B2 (ja) 2002-09-26 2009-03-11 Ｎｔｎ株式会社 動圧軸受装置
JP2006022951A (ja) * 2004-06-11 2006-01-26 Minebea Co Ltd 流体動圧軸受、該流体動圧軸受を備えたスピンドルモータ並びに記録ディスク駆動装置
DE102007009996B4 (de) * 2007-03-01 2014-03-27 Minebea Co., Ltd. Elektromotor
US9093108B2 (en) 2007-09-22 2015-07-28 Seagate Technology Llc Fluid dynamic bearing and pumping seal
KR101063340B1 (ko) * 2010-06-18 2011-09-07 주식회사 삼홍사 모터
KR20130015157A (ko) * 2011-08-02 2013-02-13 삼성전기주식회사 스핀들 모터
GB2571556B (en) * 2018-03-01 2020-09-30 Dyson Technology Ltd A method of mounting a rotor assembly to a frame of an electric motor
JP6965228B2 (ja) 2018-10-30 2021-11-10 ミネベアミツミ株式会社 モータ
CN111987817B (zh) 2019-05-24 2023-11-24 北京金风科创风电设备有限公司 电机及电机的装配方法
JP2025054940A (ja) * 2023-09-27 2025-04-08 株式会社東芝 磁気ディスク装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3206191B2 (ja) * 1993-03-15 2001-09-04 松下電器産業株式会社 スピンドルモータおよびその組立方法
JPH0833268A (ja) * 1994-07-19 1996-02-02 Toshiba Corp アキシャルギャップ形モータ及びポリゴンミラー駆動用スキャナモータ
JPH099568A (ja) * 1995-06-23 1997-01-10 Matsushita Electric Ind Co Ltd ディスク駆動装置
US5998898A (en) * 1997-12-19 1999-12-07 Matsushita Electric Industrial Co., Ltd. Motor having hydrodynamic bearing

Also Published As

Publication number Publication date
US6614139B2 (en) 2003-09-02
CN1188943C (zh) 2005-02-09
JP2002058198A (ja) 2002-02-22
CN1337770A (zh) 2002-02-27
US20020047396A1 (en) 2002-04-25

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