DE19918461B4 - Spindelmotor für Festplattenspeicher mit geringer Bauhöhe - Google Patents

Spindelmotor für Festplattenspeicher mit geringer Bauhöhe Download PDF

Info

Publication number
DE19918461B4
DE19918461B4 DE1999118461 DE19918461A DE19918461B4 DE 19918461 B4 DE19918461 B4 DE 19918461B4 DE 1999118461 DE1999118461 DE 1999118461 DE 19918461 A DE19918461 A DE 19918461A DE 19918461 B4 DE19918461 B4 DE 19918461B4
Authority
DE
Germany
Prior art keywords
base plate
stator
spindle motor
bearing
rotor
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
DE1999118461
Other languages
German (de)
English (en)
Other versions
DE19918461A1 (de
Inventor
Helmut Dr. Hans
Manfred Dipl.-Ing. Rauer (FH)
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
Precision Motors Deutsche Minebea GmbH
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 Precision Motors Deutsche Minebea GmbH filed Critical Precision Motors Deutsche Minebea GmbH
Priority to DE1999118461 priority Critical patent/DE19918461B4/de
Priority to JP2000120484A priority patent/JP2000350404A/ja
Publication of DE19918461A1 publication Critical patent/DE19918461A1/de
Application granted granted Critical
Publication of DE19918461B4 publication Critical patent/DE19918461B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rotational Drive Of Disk (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Support Of The Bearing (AREA)
  • Brushless Motors (AREA)
DE1999118461 1999-04-23 1999-04-23 Spindelmotor für Festplattenspeicher mit geringer Bauhöhe Expired - Fee Related DE19918461B4 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1999118461 DE19918461B4 (de) 1999-04-23 1999-04-23 Spindelmotor für Festplattenspeicher mit geringer Bauhöhe
JP2000120484A JP2000350404A (ja) 1999-04-23 2000-04-21 スピンドルモータ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999118461 DE19918461B4 (de) 1999-04-23 1999-04-23 Spindelmotor für Festplattenspeicher mit geringer Bauhöhe

Publications (2)

Publication Number Publication Date
DE19918461A1 DE19918461A1 (de) 2000-11-02
DE19918461B4 true DE19918461B4 (de) 2004-03-18

Family

ID=7905618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999118461 Expired - Fee Related DE19918461B4 (de) 1999-04-23 1999-04-23 Spindelmotor für Festplattenspeicher mit geringer Bauhöhe

Country Status (2)

Country Link
JP (1) JP2000350404A (ja)
DE (1) DE19918461B4 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1759521A (zh) * 2003-12-26 2006-04-12 松下电器产业株式会社 薄型电动机及其制造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266991A2 (en) * 1986-11-07 1988-05-11 Hewlett-Packard Company Magnetic preload for motor shaft bearing
EP0549274A1 (en) * 1991-12-20 1993-06-30 Minebea Kabushiki-Kaisha Outer-rotor type spindle motor
US5337374A (en) * 1991-07-04 1994-08-09 Matsushita Electric Industrial Co., Ltd. Disk drive apparatus
JPH06284663A (ja) * 1991-08-12 1994-10-07 Tokyo Parts Ind Co Ltd 偏平コア付きブラシレスモータ
US5434729A (en) * 1992-09-22 1995-07-18 Sankyo Seiki Mfg. Co., Ltd. Magnetic disc driving motor
US5528436A (en) * 1994-06-03 1996-06-18 Hewlett-Packard Company Low profile motor powered disk assembly for a recording/reproducing device
US5654597A (en) * 1995-09-08 1997-08-05 Kabushiki Kaisha Sankyo Seiki Seisakusho Magnetic disk drive motor
US5822150A (en) * 1995-02-22 1998-10-13 Integral Peripherals, Inc. Disk drive including a substantially monolithic stator assembly fabricated from low loss magnetic material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266991A2 (en) * 1986-11-07 1988-05-11 Hewlett-Packard Company Magnetic preload for motor shaft bearing
US5337374A (en) * 1991-07-04 1994-08-09 Matsushita Electric Industrial Co., Ltd. Disk drive apparatus
JPH06284663A (ja) * 1991-08-12 1994-10-07 Tokyo Parts Ind Co Ltd 偏平コア付きブラシレスモータ
EP0549274A1 (en) * 1991-12-20 1993-06-30 Minebea Kabushiki-Kaisha Outer-rotor type spindle motor
US5434729A (en) * 1992-09-22 1995-07-18 Sankyo Seiki Mfg. Co., Ltd. Magnetic disc driving motor
US5528436A (en) * 1994-06-03 1996-06-18 Hewlett-Packard Company Low profile motor powered disk assembly for a recording/reproducing device
US5822150A (en) * 1995-02-22 1998-10-13 Integral Peripherals, Inc. Disk drive including a substantially monolithic stator assembly fabricated from low loss magnetic material
US5654597A (en) * 1995-09-08 1997-08-05 Kabushiki Kaisha Sankyo Seiki Seisakusho Magnetic disk drive motor

Also Published As

Publication number Publication date
JP2000350404A (ja) 2000-12-15
DE19918461A1 (de) 2000-11-02

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: PRECISION MOTORS DEUTSCHE MINEBEA GMBH, 78052 VILL

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MINEBEA CO., LTD., NAGANO, JP

8339 Ceased/non-payment of the annual fee