DE3839731C2 - - Google Patents

Info

Publication number
DE3839731C2
DE3839731C2 DE3839731A DE3839731A DE3839731C2 DE 3839731 C2 DE3839731 C2 DE 3839731C2 DE 3839731 A DE3839731 A DE 3839731A DE 3839731 A DE3839731 A DE 3839731A DE 3839731 C2 DE3839731 C2 DE 3839731C2
Authority
DE
Germany
Prior art keywords
bearing
spindle motor
motor according
stator
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
DE3839731A
Other languages
German (de)
English (en)
Other versions
DE3839731A1 (de
Inventor
Noriaki Kyoto Jp Hishida
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.)
Nidec Corp
Original Assignee
Nidec Corp
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 Nidec Corp filed Critical Nidec Corp
Publication of DE3839731A1 publication Critical patent/DE3839731A1/de
Application granted granted Critical
Publication of DE3839731C2 publication Critical patent/DE3839731C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/406—Sealings between relatively-moving surfaces by means of fluid by at least one pump
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Rotational Drive Of Disk (AREA)
DE3839731A 1987-11-25 1988-11-24 Spindelmotor Granted DE3839731A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987179170U JP2544710Y2 (ja) 1987-11-25 1987-11-25 スピンドルモータ

Publications (2)

Publication Number Publication Date
DE3839731A1 DE3839731A1 (de) 1989-06-08
DE3839731C2 true DE3839731C2 (en18) 1993-01-14

Family

ID=16061163

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3839731A Granted DE3839731A1 (de) 1987-11-25 1988-11-24 Spindelmotor

Country Status (3)

Country Link
US (1) US4996613A (en18)
JP (1) JP2544710Y2 (en18)
DE (1) DE3839731A1 (en18)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5552650A (en) * 1988-06-09 1996-09-03 Papst Licensing Gmbh Disk storage device with motor with axially deep flange
JP2726518B2 (ja) * 1989-10-07 1998-03-11 株式会社日立製作所 ポリゴンミラーモートル
DE4103825B4 (de) * 1990-02-09 2010-09-02 Papst Licensing Gmbh & Co. Kg Antriebsvorrichtung
US5155640A (en) * 1990-05-03 1992-10-13 Microscience International Corp. Disk spindle motor cap
US5214326A (en) * 1990-09-01 1993-05-25 Nippon Densan Corporation Spindle motor with magnetic shield for magnetic fluid seal
US5305163A (en) * 1990-12-31 1994-04-19 Seagate Technology, Inc. Stationary angularly aligned stationary spindle shaft
US5483113A (en) * 1992-06-09 1996-01-09 Matsushita Electric Industrial Co., Ltd. Electric motor for driving a magnetic disk
US5519270A (en) * 1992-08-19 1996-05-21 Fujitsu Limited Spindle motor and disk drive having the same
US5596235A (en) * 1993-02-22 1997-01-21 Nidec Corporation Spindle motor with seal structure
US5521349A (en) * 1993-04-12 1996-05-28 Nippon Corporation Projection welding method
US5859745A (en) * 1993-11-02 1999-01-12 Seagate Technology, Inc. Split ring mounting for disk drive spindle and actuator shafts
DE69428670T2 (de) * 1994-01-28 2002-07-11 International Business Machines Corp., Armonk Aufprallvermeidungsschockring zum Schutz von Plattenantriebsmotorlagerungen
US6282053B1 (en) * 1994-08-05 2001-08-28 Seagate Technology, Inc. Adhesiveless disc drive spindle assembly
US5880545A (en) * 1995-03-22 1999-03-09 Nidec Corporation Spindle motor with bearing system having fluid sealing and leakage prevention
GB2304756B (en) * 1995-09-08 1999-09-08 Camco Drilling Group Ltd Improvement in or relating to electrical machines
DE19709996A1 (de) * 1997-03-12 1998-09-17 Pm Dm Gmbh Antriebsvorrichtung für Festplattenspeicher mit integrierter Labyrinthdichtung
DE19733565A1 (de) * 1997-08-02 1999-02-04 Pm Dm Gmbh Spindelmotor für Festplatten mit topfförmiger Hülse
JPH11299151A (ja) * 1998-04-13 1999-10-29 Sankyo Seiki Mfg Co Ltd モータ
JP2001054268A (ja) * 1999-08-06 2001-02-23 Hitachi Ltd ディスク装置のシャフトとハブの結合方法とその結合体
JP2002227841A (ja) * 2001-01-30 2002-08-14 Namiki Precision Jewel Co Ltd 小型扁平モータ用流体動圧軸受、小型扁平モータ、ファンモータ、空気強制供給型空気電池
JP4616632B2 (ja) * 2004-12-16 2011-01-19 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 磁気ディスク装置
JP2007282374A (ja) * 2006-04-06 2007-10-25 Nippon Densan Corp ロータ部品、モータおよび記録ディスク駆動装置
US7567003B2 (en) * 2006-05-02 2009-07-28 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Cooling fan
JP2014095397A (ja) * 2012-11-07 2014-05-22 Seiko Instruments Inc 軸受、軸受装置及び記録装置
DE102014110602A1 (de) * 2014-02-28 2015-09-03 Johnson Electric Germany GmbH & Co. KG Gerät mit einem beweglichen Bauteil

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843628A (en) * 1927-09-03 1932-02-02 Domestic Electric Company Motor bearing oiler
US2479349A (en) * 1944-09-14 1949-08-16 Westinghouse Electric Corp Bearing
US2633393A (en) * 1950-05-31 1953-03-31 Gen Electric Double flow lubricated unit bearing
US3004782A (en) * 1957-11-13 1961-10-17 Garrett Corp Shaft seal
US3688140A (en) * 1970-09-18 1972-08-29 Franklin Electric Co Inc Leakage control means for a submersible motor assembly
US3702704A (en) * 1970-12-21 1972-11-14 Exxon Research Engineering Co Noncontacting seal for centrifuge inlet
US3975026A (en) * 1975-02-14 1976-08-17 Johns-Manville Corporation Sealing cartridge for rotating shafts
US4209722A (en) * 1978-09-21 1980-06-24 Emerson Electric Co. Die cast rotor with cast-in-place oil return member
US4535373A (en) * 1980-12-29 1985-08-13 Papst-Motoren Gmbh & Co. Kg Labyrinth seal in disk storage drive
US4519010A (en) * 1980-12-05 1985-05-21 Papst-Motoren Gmbh & Co. Kg Driving mechanism for magnetic hard disc memories
JPS6216767Y2 (en18) * 1980-08-22 1987-04-27
JPS5755256U (en18) * 1980-09-18 1982-03-31
DE3153746C2 (de) * 1980-12-05 1995-04-13 Papst Motoren Gmbh & Co Kg Antriebsvorrichtung für magnetische Festplattenspeicher
DE3303499A1 (de) * 1982-02-05 1983-08-25 Nippon Seiko K.K., Tokyo Dynamische druckgaslagerung
JPS5922273A (ja) * 1982-07-29 1984-02-04 Toshiba Corp 磁気デイスク装置
JPS59188351A (ja) * 1983-04-09 1984-10-25 Canon Inc 動圧型軸受モ−タ
JPS605490A (ja) * 1983-06-22 1985-01-12 Fujitsu Ltd 磁気デイスク装置
JPS60139147A (ja) * 1983-12-26 1985-07-23 Hitachi Ltd 回転ドラム装置
IT207979Z2 (it) * 1986-08-26 1988-03-14 S I S M E Societa Italiana Sta Motore elettrico, particolarmente per ventilatori.
US4717977A (en) * 1986-09-25 1988-01-05 Micropolis Corporation High capacity Winchester disk drive

Also Published As

Publication number Publication date
DE3839731A1 (de) 1989-06-08
US4996613A (en) 1991-02-26
JPH0186454U (en18) 1989-06-08
JP2544710Y2 (ja) 1997-08-20

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee