DE69225722D1 - Aussenläuferspindelmotor - Google Patents
AussenläuferspindelmotorInfo
- Publication number
- DE69225722D1 DE69225722D1 DE69225722T DE69225722T DE69225722D1 DE 69225722 D1 DE69225722 D1 DE 69225722D1 DE 69225722 T DE69225722 T DE 69225722T DE 69225722 T DE69225722 T DE 69225722T DE 69225722 D1 DE69225722 D1 DE 69225722D1
- Authority
- DE
- Germany
- Prior art keywords
- spindle motor
- external rotor
- rotor spindle
- external
- motor
- 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
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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
-
- 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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- 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
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball 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
- 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
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball 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)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Rotational Drive Of Disk (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Packages (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991111731U JP2527020Y2 (ja) | 1991-12-20 | 1991-12-20 | スピンドルモ−タ |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69225722D1 true DE69225722D1 (de) | 1998-07-02 |
DE69225722T2 DE69225722T2 (de) | 1998-11-26 |
Family
ID=14568752
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69225722T Expired - Fee Related DE69225722T2 (de) | 1991-12-20 | 1992-12-18 | Aussenläuferspindelmotor |
DE69221842T Expired - Fee Related DE69221842T2 (de) | 1991-12-20 | 1992-12-18 | Aussenläuferspindelmotor |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69221842T Expired - Fee Related DE69221842T2 (de) | 1991-12-20 | 1992-12-18 | Aussenläuferspindelmotor |
Country Status (5)
Country | Link |
---|---|
US (2) | US5336955A (de) |
EP (2) | EP0549274B1 (de) |
JP (1) | JP2527020Y2 (de) |
CA (1) | CA2085794A1 (de) |
DE (2) | DE69225722T2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3297204B2 (ja) * | 1994-07-06 | 2002-07-02 | アルプス電気株式会社 | モータ、及びそのモータを用いた記録/再生装置 |
JP3534889B2 (ja) * | 1995-04-26 | 2004-06-07 | ミネベア株式会社 | 回転電機の固定子構造 |
TW434972B (en) * | 1998-05-15 | 2001-05-16 | Delta Electronics Inc | Improved method of motor stator |
DE19918461B4 (de) * | 1999-04-23 | 2004-03-18 | Precision Motors Deutsche Minebea Gmbh | Spindelmotor für Festplattenspeicher mit geringer Bauhöhe |
JP4144972B2 (ja) * | 1999-05-31 | 2008-09-03 | 山洋電気株式会社 | 一軸受型永久磁石電動機及び一軸受型ファンモータ |
JP2001258205A (ja) * | 2000-03-15 | 2001-09-21 | Minebea Co Ltd | モータ |
JP2002044903A (ja) * | 2000-07-21 | 2002-02-08 | Minebea Co Ltd | スピンドルモータ及びその製造方法 |
TW489953U (en) * | 2001-09-07 | 2002-06-01 | Asia Vital Components Co Ltd | Improved structure for bearing retaining device of bearing balls in a DC fan |
US6512315B1 (en) * | 2001-07-09 | 2003-01-28 | Tokyo Parts Industrial Co., Ltd. | Brushless motor having turntable |
US6747383B2 (en) * | 2002-04-09 | 2004-06-08 | Honeywell International, Inc. | Generator with hydraulically mounted stator rotor |
US7604174B2 (en) | 2003-10-24 | 2009-10-20 | Cognex Technology And Investment Corporation | Method and apparatus for providing omnidirectional lighting in a scanning device |
US7823789B2 (en) | 2004-12-21 | 2010-11-02 | Cognex Technology And Investment Corporation | Low profile illumination for direct part mark readers |
US7874487B2 (en) | 2005-10-24 | 2011-01-25 | Cognex Technology And Investment Corporation | Integrated illumination assembly for symbology reader |
DE102004041074A1 (de) | 2004-08-25 | 2006-03-02 | Robert Bosch Gmbh | Elektrische Maschine mit einem axialen Federelement |
US7617984B2 (en) | 2004-12-16 | 2009-11-17 | Cognex Technology And Investment Corporation | Hand held symbology reader illumination diffuser |
US9292724B1 (en) | 2004-12-16 | 2016-03-22 | Cognex Corporation | Hand held symbology reader illumination diffuser with aimer optics |
US7078837B1 (en) * | 2005-01-28 | 2006-07-18 | Remy International, Inc. | Method and apparatus for contamination protection for bearing assembly |
TW200703852A (en) * | 2005-07-12 | 2007-01-16 | Sunonwealth Electr Mach Ind Co | Pivoting structure of motor rotor |
JP2010041872A (ja) * | 2008-08-07 | 2010-02-18 | Panasonic Corp | モータおよびそれを備えた電子機器 |
JP7331356B2 (ja) * | 2018-12-14 | 2023-08-23 | Tdk株式会社 | 永久磁石および回転電機 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB311078A (en) * | 1928-04-26 | 1929-05-09 | Skefko Ball Bearing Company Lt | Improvements in or relating to anti-friction journal-bearings |
DE676392C (de) * | 1937-04-03 | 1939-06-02 | Julius Lindner & Co Maschinenf | Einrichtung zum Verschwenken der Drehachse von Getriebeteilen |
US3584159A (en) * | 1968-02-26 | 1971-06-08 | Matsushita Electric Ind Co Ltd | Magnetic head |
JPH0834030B2 (ja) * | 1987-04-13 | 1996-03-29 | 松下電器産業株式会社 | 記録円盤駆動装置 |
JPS6476454A (en) * | 1987-09-18 | 1989-03-22 | Hitachi Ltd | Disk driving device |
JPH0271461A (ja) * | 1988-09-05 | 1990-03-12 | Seiko Epson Corp | スピンドルモーター |
JPH02162566A (ja) * | 1988-12-15 | 1990-06-22 | Canon Electron Inc | ディスク装置 |
JPH0814286B2 (ja) * | 1990-08-11 | 1996-02-14 | ティアツク株式会社 | スピンドル軸の軸受構造 |
US5214326A (en) * | 1990-09-01 | 1993-05-25 | Nippon Densan Corporation | Spindle motor with magnetic shield for magnetic fluid seal |
US5317225A (en) * | 1990-12-29 | 1994-05-31 | Nippon Densan Corporation | Spindle motor and disk clamp mechanism used therein |
JP2516160Y2 (ja) * | 1991-05-08 | 1996-11-06 | ティアック株式会社 | ドライブ装置 |
-
1991
- 1991-12-20 JP JP1991111731U patent/JP2527020Y2/ja not_active Expired - Lifetime
-
1992
- 1992-12-18 EP EP92311583A patent/EP0549274B1/de not_active Expired - Lifetime
- 1992-12-18 DE DE69225722T patent/DE69225722T2/de not_active Expired - Fee Related
- 1992-12-18 CA CA002085794A patent/CA2085794A1/en not_active Abandoned
- 1992-12-18 DE DE69221842T patent/DE69221842T2/de not_active Expired - Fee Related
- 1992-12-18 EP EP96111908A patent/EP0750305B1/de not_active Expired - Lifetime
- 1992-12-18 US US07/992,662 patent/US5336955A/en not_active Expired - Fee Related
-
1994
- 1994-05-19 US US08/246,139 patent/US5442247A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0549274B1 (de) | 1997-08-27 |
EP0750305A1 (de) | 1996-12-27 |
DE69221842T2 (de) | 1998-01-22 |
EP0750305B1 (de) | 1998-05-27 |
EP0549274A1 (de) | 1993-06-30 |
CA2085794A1 (en) | 1993-06-21 |
DE69225722T2 (de) | 1998-11-26 |
JPH0555773U (ja) | 1993-07-23 |
JP2527020Y2 (ja) | 1997-02-26 |
US5336955A (en) | 1994-08-09 |
DE69221842D1 (de) | 1997-10-02 |
US5442247A (en) | 1995-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |