ATE95349T1 - Spindelmotor. - Google Patents
Spindelmotor.Info
- Publication number
- ATE95349T1 ATE95349T1 AT90113790T AT90113790T ATE95349T1 AT E95349 T1 ATE95349 T1 AT E95349T1 AT 90113790 T AT90113790 T AT 90113790T AT 90113790 T AT90113790 T AT 90113790T AT E95349 T1 ATE95349 T1 AT E95349T1
- Authority
- AT
- Austria
- Prior art keywords
- peripheral surface
- support shaft
- rotor
- spindle motor
- center hole
- Prior art date
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
- F16C17/10—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
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/02—Sliding-contact bearings
- F16C25/04—Sliding-contact bearings self-adjusting
- F16C25/045—Sliding-contact bearings self-adjusting with magnetic means to preload the bearing
-
- 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
- F16C39/00—Relieving load on bearings
- F16C39/06—Relieving load on bearings using magnetic means
- F16C39/063—Permanent magnets
-
- 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
- H02K5/1677—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 rotor around a fixed spindle; radially supporting the rotor directly
-
- 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)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Turning (AREA)
- Motor Or Generator Frames (AREA)
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19088389 | 1989-07-24 | ||
EP90113790A EP0410293B1 (de) | 1989-07-24 | 1990-07-18 | Spindelmotor |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE95349T1 true ATE95349T1 (de) | 1993-10-15 |
Family
ID=16265331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90113790T ATE95349T1 (de) | 1989-07-24 | 1990-07-18 | Spindelmotor. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5089732A (de) |
EP (1) | EP0410293B1 (de) |
JP (1) | JPH03128650A (de) |
AT (1) | ATE95349T1 (de) |
DE (1) | DE69003619T2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04307108A (ja) * | 1991-04-04 | 1992-10-29 | Ebara Corp | 動圧軸受装置 |
DE69217769T2 (de) * | 1991-08-19 | 1997-10-02 | Sumitomo Electric Industries | Verbundlagerstruktur |
GB2266009B (en) * | 1992-04-08 | 1996-08-07 | Fluid Film Devices Limited | Improvements in or relating to electric motors |
JPH06346917A (ja) * | 1993-06-03 | 1994-12-20 | Shicoh Eng Co Ltd | 一方向性動圧軸受を用いた耐圧防水シ−ル機構 |
BE1007463A3 (nl) * | 1993-09-02 | 1995-07-04 | Philips Electronics Nv | Ondersteuningsinrichting met een uniform afdichtende sluitstukbevestiging, alsmede data-opslageenheid voorzien van een dergelijke ondersteuningsinrichting. |
US5729404A (en) * | 1993-09-30 | 1998-03-17 | Seagate Technology, Inc. | Disc drive spindle motor with rotor isolation and controlled resistance electrical pathway from disc to ground |
DE4420371A1 (de) * | 1994-06-10 | 1995-12-14 | Philips Patentverwaltung | Elektromotor, insbesondere für einen Festplattenantrieb, mit einem Stator und einem Rotor |
EP0670621B1 (de) * | 1994-03-04 | 2000-12-06 | Philips Patentverwaltung GmbH | Elektromotor mit einem Stator und einem Rotor |
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 |
JPH08223858A (ja) * | 1994-12-15 | 1996-08-30 | Canon Inc | インナーロータモータ |
JPH09149584A (ja) * | 1995-11-20 | 1997-06-06 | Matsushita Electric Ind Co Ltd | スピンドルモータ |
US6169354B1 (en) * | 1996-05-24 | 2001-01-02 | Halo Data Devices, Inc. | Thin film electric motors |
US5783886A (en) * | 1996-08-06 | 1998-07-21 | Samsung Electro-Mechanics Co., Ltd. | Spindle motor having magnetic bearing |
US5921731A (en) * | 1996-12-31 | 1999-07-13 | The Ingersoll Milling Machine Company | High speed hydrostatic spindle |
US6036413A (en) * | 1997-01-02 | 2000-03-14 | The Ingersoll Milling Machine Company | High speed hydrodynamic spindle |
DE69825506T2 (de) * | 1997-02-03 | 2005-01-05 | Hitachi, Ltd. | Plattengerät mit verbessertem Dämpfungsmittel |
US6025665A (en) * | 1997-02-21 | 2000-02-15 | Emerson Electric Co. | Rotating machine for use in a pressurized fluid system |
US6078121A (en) * | 1997-02-21 | 2000-06-20 | Emerson Electric Co. | Rotor assembly for a rotating machine |
US5957589A (en) * | 1997-12-10 | 1999-09-28 | International Business Machine Corporation | Fluid bearing seal and support structure |
US5998898A (en) * | 1997-12-19 | 1999-12-07 | Matsushita Electric Industrial Co., Ltd. | Motor having hydrodynamic bearing |
EP0957480A1 (de) * | 1998-05-15 | 1999-11-17 | Deutsche Thomson-Brandt Gmbh | Platten Laufwerk mit Kompensation der Exzentrizität einer Platte |
US6373655B1 (en) * | 1998-06-04 | 2002-04-16 | Seagate Technology, Llc | Low cost hydrodynamic spindle |
JP2000186716A (ja) * | 1998-10-08 | 2000-07-04 | Seiko Instruments Inc | 流体動圧軸受、スピンドルモ―タ、及び回転体装置 |
EP1024294A3 (de) * | 1999-01-29 | 2002-03-13 | Ibiden Co., Ltd. | Motor und Turbomolekularpumpe |
JP2000308318A (ja) * | 1999-04-20 | 2000-11-02 | Sony Corp | 鉄芯コイルモータ及びディスクドライブ装置 |
JP2000304033A (ja) * | 1999-04-22 | 2000-10-31 | Sumitomo Electric Ind Ltd | 動圧軸受 |
JP2000324778A (ja) | 1999-04-30 | 2000-11-24 | Sumitomo Electric Ind Ltd | スピンドルモータ |
US6204588B1 (en) | 1999-05-27 | 2001-03-20 | Halo Data Devices, Inc. | Rotor capable of being used as a recording media |
JP2003222124A (ja) * | 1999-07-14 | 2003-08-08 | Sumitomo Electric Ind Ltd | スピンドルモータ |
RU2193703C2 (ru) * | 1999-09-22 | 2002-11-27 | Общество с ограниченной ответственностью "ДКМ Венчурные проекты" | Опорно-приводное устройство |
JP2001245451A (ja) * | 2000-02-28 | 2001-09-07 | Pioneer Electronic Corp | モータ装置 |
US6457867B1 (en) | 2000-07-26 | 2002-10-01 | International Business Machines Corporation | Method and apparatus for replenishing oil in a fluid dynamic bearing using a sleeve groove |
JP2003176824A (ja) * | 2001-12-11 | 2003-06-27 | Minebea Co Ltd | 流体動圧軸受およびスピンドルモータ |
US6982510B1 (en) | 2001-12-20 | 2006-01-03 | Seagate Technology Llc | Low profile fluid dynamic bearing |
US20030185472A1 (en) * | 2002-03-13 | 2003-10-02 | Aiello Anthony Joseph | Single thrust bearing fluid dynamic bearing motor |
US6841902B2 (en) * | 2002-10-07 | 2005-01-11 | Seagate Technology Llc | Method and apparatus for minimization of magnetic bias force harmonics in a spindle motor |
DE10361183A1 (de) * | 2003-12-24 | 2005-07-28 | Minebea Co., Ltd. | Spindelmotor |
US7422371B2 (en) * | 2005-02-09 | 2008-09-09 | Seagate Technology Llc | Active hybrid FDB motor |
US7956499B2 (en) * | 2005-06-02 | 2011-06-07 | Seagate Technology Llc | Motor magnetic force attenuator |
US20090102300A1 (en) * | 2007-10-19 | 2009-04-23 | Thilo Rehm | Spindle motor for a hard disk drive |
US20090227412A1 (en) * | 2008-03-10 | 2009-09-10 | Din-Shan Chang | Modular gear train mechanism with an internal motor |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2278128A1 (fr) * | 1974-07-08 | 1976-02-06 | Lencot Gerard | Plateau d'entrainement de machine phonographique sur paliers aerostatiques |
JPS5928134B2 (ja) * | 1978-12-26 | 1984-07-11 | 松下電器産業株式会社 | 軸方向空隙型電動機 |
US4645960A (en) * | 1979-07-30 | 1987-02-24 | Litton Systems, Inc. | Ferro-fluid bearing |
US4535373A (en) * | 1980-12-29 | 1985-08-13 | Papst-Motoren Gmbh & Co. Kg | Labyrinth seal in disk storage drive |
CH654455A5 (de) * | 1980-05-10 | 1986-02-14 | Papst Motoren Gmbh & Co Kg | Buerstenlose gleichstrommotoranordnung, insbesondere fuer magnetplattenantriebe. |
JPS585518A (ja) * | 1981-07-01 | 1983-01-12 | Nippon Seiko Kk | 動圧形スピンドル装置 |
US4599664A (en) * | 1982-03-01 | 1986-07-08 | Papst-Motoren Gmbh & Co Kg | Disk storage drive |
US4553183A (en) * | 1982-06-28 | 1985-11-12 | Atasi Corporation | Memory storage apparatus having improved housing and base plate arrangement |
JPS5928757A (ja) * | 1982-08-11 | 1984-02-15 | Takahashi Yoshiteru | 回転多面鏡走査装置 |
JPS604617A (ja) * | 1983-06-24 | 1985-01-11 | Canon Inc | 動圧流体軸受 |
JPS6026676U (ja) * | 1983-07-28 | 1985-02-22 | 日本精工株式会社 | 磁気ディスク記憶装置 |
US4515486A (en) * | 1984-02-03 | 1985-05-07 | Ide Russell D | Elastomeric supported hydrodynamic bearing |
JPS61112547A (ja) * | 1984-11-07 | 1986-05-30 | Mitsubishi Electric Corp | デイスク駆動モ−タ |
EP0206516A3 (de) * | 1985-05-21 | 1988-08-10 | Ferrofluidics Corporation | Magnetische Flüssigkeit, Methode ihrer Herstellung und Apparat und Methode zu ihrer Anwendung |
JPH0691717B2 (ja) * | 1986-09-26 | 1994-11-14 | 株式会社荏原製作所 | 電動機械 |
JPS62140271A (ja) * | 1985-12-13 | 1987-06-23 | Matsushita Electric Ind Co Ltd | 流体軸受式デイスク駆動装置 |
JPS63100416A (ja) * | 1986-10-17 | 1988-05-02 | Ricoh Co Ltd | 光偏向装置 |
JPS63241516A (ja) * | 1987-03-30 | 1988-10-06 | Ebara Corp | ポリゴンミラ− |
JPS63241517A (ja) * | 1987-03-30 | 1988-10-06 | Ebara Corp | ポリゴンミラ− |
JPS63241515A (ja) * | 1987-03-30 | 1988-10-06 | Ebara Corp | ポリゴンミラ− |
JP2669549B2 (ja) * | 1988-12-14 | 1997-10-29 | 株式会社日立製作所 | 磁気デイスク装置 |
US4998033A (en) * | 1989-04-12 | 1991-03-05 | Ebara Corporation | Gas dynamic bearing for spindle motor |
-
1990
- 1990-07-18 DE DE90113790T patent/DE69003619T2/de not_active Expired - Fee Related
- 1990-07-18 AT AT90113790T patent/ATE95349T1/de not_active IP Right Cessation
- 1990-07-18 EP EP90113790A patent/EP0410293B1/de not_active Expired - Lifetime
- 1990-07-19 US US07/556,255 patent/US5089732A/en not_active Expired - Fee Related
- 1990-07-24 JP JP2195506A patent/JPH03128650A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0410293B1 (de) | 1993-09-29 |
DE69003619D1 (de) | 1993-11-04 |
US5089732A (en) | 1992-02-18 |
EP0410293A1 (de) | 1991-01-30 |
JPH03128650A (ja) | 1991-05-31 |
DE69003619T2 (de) | 1994-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |