JP2003018792A - モータ - Google Patents

モータ

Info

Publication number
JP2003018792A
JP2003018792A JP2002115035A JP2002115035A JP2003018792A JP 2003018792 A JP2003018792 A JP 2003018792A JP 2002115035 A JP2002115035 A JP 2002115035A JP 2002115035 A JP2002115035 A JP 2002115035A JP 2003018792 A JP2003018792 A JP 2003018792A
Authority
JP
Japan
Prior art keywords
shaft
surface portion
motor
annular body
end surface
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.)
Withdrawn
Application number
JP2002115035A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003018792A5 (enExample
Inventor
Rikuro Obara
陸郎 小原
Akio Okamiya
秋雄 岡宮
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.)
Minebea Co Ltd
Original Assignee
Minebea Co Ltd
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 Minebea Co Ltd filed Critical Minebea Co Ltd
Priority to EP02008203A priority Critical patent/EP1251626A3/en
Priority to JP2002115035A priority patent/JP2003018792A/ja
Priority to US10/123,228 priority patent/US6734590B2/en
Publication of JP2003018792A publication Critical patent/JP2003018792A/ja
Priority to US10/756,339 priority patent/US7176594B2/en
Publication of JP2003018792A5 publication Critical patent/JP2003018792A5/ja
Priority to US11/645,630 priority patent/US20070103020A1/en
Withdrawn legal-status Critical Current

Links

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
    • 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Sliding-Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
JP2002115035A 2001-04-17 2002-04-17 モータ Withdrawn JP2003018792A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP02008203A EP1251626A3 (en) 2001-04-17 2002-04-17 Bearing device and spindle motor provided with the bearing device
JP2002115035A JP2003018792A (ja) 2001-04-17 2002-04-17 モータ
US10/123,228 US6734590B2 (en) 2001-04-17 2002-04-17 Motor
US10/756,339 US7176594B2 (en) 2001-04-17 2004-01-14 Motor
US11/645,630 US20070103020A1 (en) 2001-04-17 2006-12-27 Motor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001118522 2001-04-17
JP2001-118522 2001-04-17
JP2002115035A JP2003018792A (ja) 2001-04-17 2002-04-17 モータ

Publications (2)

Publication Number Publication Date
JP2003018792A true JP2003018792A (ja) 2003-01-17
JP2003018792A5 JP2003018792A5 (enExample) 2005-09-22

Family

ID=26613709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002115035A Withdrawn JP2003018792A (ja) 2001-04-17 2002-04-17 モータ

Country Status (3)

Country Link
US (3) US6734590B2 (enExample)
EP (1) EP1251626A3 (enExample)
JP (1) JP2003018792A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013090429A (ja) * 2011-10-18 2013-05-13 Minebea Motor Manufacturing Corp モータのコイルアッシー構造、モータおよびモータのコイルアッシー構造の製造方法
JP2014181778A (ja) * 2013-03-21 2014-09-29 Kurimoto Ltd 回転制動装置

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6927515B2 (en) * 2002-07-17 2005-08-09 Seagate Technology, Llc Dynamic tilt limiter for fluid dynamic bearings
DE20211064U1 (de) 2002-07-22 2003-08-07 Minebea Co.,Ltd., Kitasaku, Nagano Hydrodynamisches Drucklager
JP2005304284A (ja) * 2004-03-17 2005-10-27 Nippon Densan Corp ディスク駆動用モータ及びこれを備えたディスク駆動装置
JP4797489B2 (ja) * 2005-07-26 2011-10-19 日本電産株式会社 カラーホイール回転用装置
US7679243B2 (en) * 2005-12-22 2010-03-16 Seagate Technology Llc Motor assembly with multifunctional components
US20070216239A1 (en) * 2006-03-14 2007-09-20 Sunonwealth Electric Machine Industry Co., Ltd. Tray assembly for spindle motor with aerodynamic bearing
CN101153632B (zh) * 2006-09-27 2010-05-26 富准精密工业(深圳)有限公司 保油轴承结构与风扇马达
JP2008291982A (ja) * 2007-05-28 2008-12-04 Panasonic Corp 流体軸受装置およびこれを備えたスピンドルモータ、記録再生装置
JP2008291983A (ja) * 2007-05-28 2008-12-04 Panasonic Corp 流体軸受装置およびこれを備えたスピンドルモータ、記録再生装置
JP2010281403A (ja) * 2009-06-05 2010-12-16 Minebea Co Ltd 流体動圧軸受、流体動圧軸受を備えるスピンドルモータ、並びにスピンドルモータを備える記録ディスク駆動装置
KR101135288B1 (ko) * 2010-09-15 2012-04-12 엘지이노텍 주식회사 스핀들 모터
JP6939079B2 (ja) * 2017-05-16 2021-09-22 日本電産株式会社 モータおよびディスク駆動装置

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Publication number Priority date Publication date Assignee Title
DE386864C (de) * 1920-03-14 1923-12-18 Friedrich Schneeberger Spurlager
CH356652A (de) * 1960-12-07 1961-08-31 Landis & Gyr Ag Feingerätelager
JPS5554718A (en) * 1978-10-16 1980-04-22 Matsushita Electric Ind Co Ltd Rotary transmission device
JPS5945844B2 (ja) * 1979-07-26 1984-11-09 松下電器産業株式会社 回転装置
US4604665A (en) * 1980-12-05 1986-08-05 Papst-Motoren Gmbh & Co. Kg Driving mechanism for magnetic hard disc
JPH02199318A (ja) * 1989-01-27 1990-08-07 Nippon Seiko Kk 動圧軸受装置
DE3928749A1 (de) * 1989-08-31 1991-03-07 Micronel Ag Axialsicherung der welle eines kleinmotors
JPH0686503A (ja) * 1992-09-03 1994-03-25 Hitachi Ltd モータ、ポリゴンミラーモータ、ディスク駆動モータ
JP2689834B2 (ja) * 1992-12-11 1997-12-10 株式会社日立製作所 モートル，ミラーモートルおよびレーザビームプリンター
JP2864941B2 (ja) * 1993-04-27 1999-03-08 株式会社日立製作所 回転体軸受装置，モータおよびポリゴンミラーモータ
JPH0712127A (ja) * 1993-06-28 1995-01-17 Sankyo Seiki Mfg Co Ltd 流体軸受装置
US5710678A (en) * 1994-07-22 1998-01-20 Seagate Technology, Inc. Disc drive with self-pressurizing fluid bearing and shaft-supporting-ball retaining element
IT1279208B1 (it) * 1995-05-16 1997-12-04 Bitron Spa Sistema di accoppiamento a gioco assiale minimo e controllato tra un albero ed un supporto in rotazione relativa, e relativi procedimenti
JP3768571B2 (ja) * 1995-10-06 2006-04-19 日本電産株式会社 スピンドルモータ
KR100224597B1 (ko) * 1996-10-29 1999-10-15 윤종용 유체베어링 장치
JPH11132225A (ja) * 1997-10-30 1999-05-18 Nippon Seiko Kk 軸受装置
JP2001187920A (ja) * 1998-12-24 2001-07-10 Nsk Ltd スピンドルモータ
JP3466945B2 (ja) * 1999-01-05 2003-11-17 日本電産株式会社 記録ディスク駆動用モータ及びこれを備えた記録ディスク駆動装置
JP2000260111A (ja) * 1999-03-09 2000-09-22 Sony Corp モータ
JP3961151B2 (ja) * 1999-04-28 2007-08-22 株式会社ジェイテクト 動圧軸受

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013090429A (ja) * 2011-10-18 2013-05-13 Minebea Motor Manufacturing Corp モータのコイルアッシー構造、モータおよびモータのコイルアッシー構造の製造方法
JP2014181778A (ja) * 2013-03-21 2014-09-29 Kurimoto Ltd 回転制動装置

Also Published As

Publication number Publication date
EP1251626A2 (en) 2002-10-23
US20040160137A1 (en) 2004-08-19
US20070103020A1 (en) 2007-05-10
US20020163268A1 (en) 2002-11-07
US6734590B2 (en) 2004-05-11
US7176594B2 (en) 2007-02-13
EP1251626A3 (en) 2005-11-16

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