TWI320622B - - Google Patents

Info

Publication number
TWI320622B
TWI320622B TW095143389A TW95143389A TWI320622B TW I320622 B TWI320622 B TW I320622B TW 095143389 A TW095143389 A TW 095143389A TW 95143389 A TW95143389 A TW 95143389A TW I320622 B TWI320622 B TW I320622B
Authority
TW
Taiwan
Prior art keywords
gap
thrust
circumferential surface
lubrication
dynamic pressure
Prior art date
Application number
TW095143389A
Other languages
English (en)
Other versions
TW200733519A (en
Inventor
Teruyuki Yajima
Original Assignee
Alphana Technology 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 Alphana Technology Co Ltd filed Critical Alphana Technology Co Ltd
Publication of TW200733519A publication Critical patent/TW200733519A/zh
Application granted granted Critical
Publication of TWI320622B publication Critical patent/TWI320622B/zh

Links

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
    • 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
    • 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
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/107—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one surface for radial load and at least one surface for axial load
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • F16C33/743—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap
    • F16C33/745—Sealings of sliding-contact bearings by means of a fluid retained in the sealing gap by capillary action
    • 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
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30—Angles, e.g. inclinations
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/30—Angles, e.g. inclinations
    • F16C2240/34—Contact angles
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Sealing Of Bearings (AREA)
TW095143389A 2006-01-30 2006-11-23 Motor mounted with improved dynamic pressure fluid bearing mechanism TW200733519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006020356A JP4571593B2 (ja) 2006-01-30 2006-01-30 モータ

Publications (2)

Publication Number Publication Date
TW200733519A TW200733519A (en) 2007-09-01
TWI320622B true TWI320622B (zh) 2010-02-11

Family

ID=38321362

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095143389A TW200733519A (en) 2006-01-30 2006-11-23 Motor mounted with improved dynamic pressure fluid bearing mechanism

Country Status (5)

Country Link
US (2) US7489059B2 (zh)
JP (1) JP4571593B2 (zh)
KR (1) KR100796538B1 (zh)
CN (1) CN101012851B (zh)
TW (1) TW200733519A (zh)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811201B1 (ko) * 2006-02-24 2008-03-07 (주)지엔더블유테크놀러지 유체동압베어링모터
DE102007032673A1 (de) * 2006-10-30 2008-05-08 Minebea Co., Ltd., Miyota Fluiddynamisches Lagersystem und Spindelmotor mit einem solchen Lagersystem
US20110019303A1 (en) * 2008-05-26 2011-01-27 Nidec Corporation Fluid dynamic bearing apparatus, spindle motor, and disk drive apparatus
US8743505B2 (en) * 2008-05-26 2014-06-03 Nidec Corporation Fluid dynamic bearing apparatus with specific minute gap structure with spindle motor and disk drive apparatus including same
JP4861441B2 (ja) * 2009-01-30 2012-01-25 アルファナテクノロジー株式会社 ディスク駆動装置
JP5289992B2 (ja) * 2009-01-30 2013-09-11 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
US8243383B2 (en) 2009-01-30 2012-08-14 Alphana Technology Co., Ltd. Disk drive device provided with fluid dynamic bearing
JP2010205324A (ja) 2009-03-02 2010-09-16 Alphana Technology Co Ltd ディスク駆動装置の製造方法、ディスク駆動装置及びディスク駆動装置のサブアッセンブリ
JP2010244626A (ja) 2009-04-07 2010-10-28 Alphana Technology Co Ltd ディスク駆動装置
JP5717953B2 (ja) * 2009-06-02 2015-05-13 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
JP5519196B2 (ja) 2009-06-24 2014-06-11 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
JP5674184B2 (ja) 2009-08-04 2015-02-25 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
US8213114B2 (en) 2009-08-21 2012-07-03 Alphana Technology Co., Ltd. Disk drive hub with motor coil wiring arrangement to reduce thickness and suppressed torque decrease
US8184396B2 (en) 2009-09-02 2012-05-22 Alphana Technology Co., Ltd. Disk drive device with hub having a rotational frequency of axial run-out smaller than 0.1 μm for improved shock resistance
JP5636181B2 (ja) * 2009-09-14 2014-12-03 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
JP5631575B2 (ja) 2009-11-10 2014-11-26 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ブラシレスモータ
US8345379B2 (en) 2009-11-18 2013-01-01 Alphana Technology Co., Ltd. Disk drive device equipped with a bearing unit relatively rotatably supporting a hub against base member
JP5606077B2 (ja) 2010-01-19 2014-10-15 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置
JP5519314B2 (ja) * 2010-02-12 2014-06-11 サムスン電機ジャパンアドバンスドテクノロジー株式会社 回転機器
TWI384724B (zh) * 2010-03-03 2013-02-01 Sunonwealth Electr Mach Ind Co 馬達轉動件
JP2011223820A (ja) 2010-04-14 2011-11-04 Alphana Technology Co Ltd ディスク駆動装置
JP5660704B2 (ja) * 2010-05-11 2015-01-28 サムスン電機ジャパンアドバンスドテクノロジー株式会社 回転機器および回転機器の製造方法
KR101124106B1 (ko) * 2010-07-12 2012-03-22 삼성전기주식회사 유체 동압 베어링 조립체 및 이를 포함하는 모터 장치
KR101101638B1 (ko) 2010-07-13 2012-01-02 삼성전기주식회사 모터 및 기록 디스크 구동장치
JP5455835B2 (ja) 2010-08-03 2014-03-26 サムスン電機ジャパンアドバンスドテクノロジー株式会社 流体動圧軸受用回転体および流体動圧軸受用回転体の製造方法
JP2012087861A (ja) 2010-10-19 2012-05-10 Nippon Densan Corp 流体動圧軸受機構、スピンドルモータ、およびディスク駆動装置
JP2012145157A (ja) 2011-01-11 2012-08-02 Alphana Technology Co Ltd 回転機器および回転機器を製造する方法
JP2012147629A (ja) * 2011-01-14 2012-08-02 Alphana Technology Co Ltd リングマグネットを製造する方法及びリングマグネットを備えたロータ
US8858084B2 (en) * 2011-01-17 2014-10-14 Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. Rotating device and component for fluid dynamic bearing unit thereof
JP2012165627A (ja) * 2011-01-17 2012-08-30 Alphana Technology Co Ltd 回転機器
JP2012175838A (ja) * 2011-02-22 2012-09-10 Alphana Technology Co Ltd 回転機器
KR20120138266A (ko) * 2011-06-14 2012-12-26 삼성전기주식회사 스핀들 모터
JP2013034373A (ja) * 2011-08-02 2013-02-14 Samsung Electro-Mechanics Co Ltd スピンドルモータ及びそれを含むハードディスクドライブ
JP2013066357A (ja) * 2011-08-31 2013-04-11 Nippon Densan Corp モータおよびディスク駆動装置
JP2013161501A (ja) * 2012-02-06 2013-08-19 Samsung Electromechanics Japan Advanced Technology Co Ltd 回転機器を製造する方法
KR101350586B1 (ko) * 2012-03-08 2014-01-14 삼성전기주식회사 유체 동압 베어링 어셈블리 및 이를 포함하는 모터
KR101275304B1 (ko) * 2012-03-29 2013-06-17 삼성전기주식회사 스핀들 모터
US20130266463A1 (en) * 2012-04-04 2013-10-10 Alphana Technology Co., Ltd. Fan motor
KR20130123253A (ko) * 2012-05-02 2013-11-12 삼성전기주식회사 동압 베어링 장치 및 이를 구비하는 스핀들 모터
KR101434020B1 (ko) * 2012-07-04 2014-08-25 삼성전기주식회사 스핀들 모터
KR101376946B1 (ko) * 2012-07-05 2014-03-21 삼성전기주식회사 스핀들 모터
KR101388808B1 (ko) * 2012-08-10 2014-04-23 삼성전기주식회사 스핀들 모터
US9438080B2 (en) 2013-03-08 2016-09-06 Regal Beloit America, Inc. Seal arrangement for a motor pump assembly and a motor for a pump including a seal arrangement
JP2015014370A (ja) * 2014-09-09 2015-01-22 サムスン電機ジャパンアドバンスドテクノロジー株式会社 ディスク駆動装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5956204A (en) * 1995-02-13 1999-09-21 Seagate Technology, Inc. Magnetic disc drive having magnetic particle trap for hydrodynamic bearing
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
JP4693948B2 (ja) * 1999-08-26 2011-06-01 日本電産株式会社 動圧軸受装置
US6980393B2 (en) * 2002-03-12 2005-12-27 Minebea Co., Ltd. Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter
DE10240634B4 (de) * 2002-03-12 2007-07-19 Minebea Co., Ltd. Hydrodynamisches Lager für einen Spindelmotor
KR20030074394A (ko) * 2002-03-12 2003-09-19 미네베아 가부시키가이샤 단축을 구비한 저동력 스핀들 모터
JP3930762B2 (ja) * 2002-04-19 2007-06-13 日本電産株式会社 動圧軸受装置及びこれを備えたスピンドルモータ
JP3955949B2 (ja) * 2002-09-13 2007-08-08 日本電産株式会社 スピンドルモータ及びこれを備えたディスク駆動装置
US7134792B2 (en) * 2002-11-05 2006-11-14 Seagate Technology Llc Single thrust-journal bearing cup fluid dynamic bearing motor
JP2004271820A (ja) 2003-03-07 2004-09-30 Seiko Epson Corp 基板保持方法、基板保持具、デバイス製造方法、デバイス製造装置及び電気光学装置並びに電子機器
JP4302413B2 (ja) 2003-03-10 2009-07-29 日本電産株式会社 流体動圧軸受、スピンドルモータ及び記録ディスクドライブ装置
JP2004316680A (ja) * 2003-04-11 2004-11-11 Nippon Densan Corp スピンドルモータ、及びこれを備えた記録ディスク駆動装置
JP2005127405A (ja) * 2003-10-23 2005-05-19 Victor Co Of Japan Ltd 動圧流体軸受モータ及びそれを備えたディスク駆動装置
JP2005291428A (ja) * 2004-04-02 2005-10-20 Nippon Densan Corp 流体動圧軸受、スピンドルモータおよび記録ディスク駆動装置
KR100477545B1 (ko) * 2004-07-29 2005-03-18 (주)지엔더블유테크놀러지 유체동압베어링 모터
JP4451771B2 (ja) * 2004-12-27 2010-04-14 アルファナテクノロジー株式会社 スピンドルモータ
JP2006194400A (ja) * 2005-01-17 2006-07-27 Matsushita Electric Ind Co Ltd スピンドルモータおよび回転装置
JP4567476B2 (ja) * 2005-01-28 2010-10-20 アルファナテクノロジー株式会社 モータ
JP4499615B2 (ja) * 2005-05-30 2010-07-07 アルファナテクノロジー株式会社 スピンドルモータ
KR100756575B1 (ko) * 2005-06-30 2007-09-07 닛뽕빅터 가부시키가이샤 모터
DE102005032630B4 (de) * 2005-07-13 2008-04-17 Minebea Co., Ltd. Fluiddynamisches Lagersystem
US7473034B2 (en) * 2005-07-28 2009-01-06 Panasonic Corporation Hydrodynamic bearing device, motor, and disk driving apparatus
US7679243B2 (en) * 2005-12-22 2010-03-16 Seagate Technology Llc Motor assembly with multifunctional components

Also Published As

Publication number Publication date
KR20070078780A (ko) 2007-08-02
US7489059B2 (en) 2009-02-10
JP4571593B2 (ja) 2010-10-27
US20070176503A1 (en) 2007-08-02
US20090115277A1 (en) 2009-05-07
KR100796538B1 (ko) 2008-01-21
TW200733519A (en) 2007-09-01
CN101012851B (zh) 2012-01-25
CN101012851A (zh) 2007-08-08
JP2007198555A (ja) 2007-08-09
US7608958B2 (en) 2009-10-27

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