GB2278737B - Miniature motor having bearing device and method for securing bearing device - Google Patents

Miniature motor having bearing device and method for securing bearing device

Info

Publication number
GB2278737B
GB2278737B GB9404369A GB9404369A GB2278737B GB 2278737 B GB2278737 B GB 2278737B GB 9404369 A GB9404369 A GB 9404369A GB 9404369 A GB9404369 A GB 9404369A GB 2278737 B GB2278737 B GB 2278737B
Authority
GB
United Kingdom
Prior art keywords
bearing device
miniature motor
bearing
securing
casing
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
GB9404369A
Other versions
GB9404369D0 (en
GB2278737A (en
Inventor
Keisuke Ebihara
Youichirou Hama
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.)
Mabuchi Motor Co Ltd
Original Assignee
Mabuchi Motor 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 Mabuchi Motor Co Ltd filed Critical Mabuchi Motor Co Ltd
Publication of GB9404369D0 publication Critical patent/GB9404369D0/en
Publication of GB2278737A publication Critical patent/GB2278737A/en
Application granted granted Critical
Publication of GB2278737B publication Critical patent/GB2278737B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports
    • 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
    • H02K5/1672—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 rotary shaft at both ends 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
    • F16C2370/00—Apparatus relating to physics, e.g. instruments
    • F16C2370/12—Hard disk drives or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A miniature motor has a rotor (13, 68, 83) disposed inside a casing (12, 61, 82) having an inner surface on which a stator (11, 65, 81) is mounted. A bearing device supporting a rotation shaft (16, 71, 86) of the rotor comprises a bearing (14, 72, 84, 85) for supporting the rotation shaft in a radial direction thereof. The bearing device also comprises a flat portion (19, 64, 88, 89) formed by the casing and to which the bearing is welded by a laser beam welding method. A motor having a bearing device of the defined structure has a reduced axial length and a compact structure and may be used for a compact disc player. <IMAGE>
GB9404369A 1993-05-27 1994-03-07 Miniature motor having bearing device and method for securing bearing device Expired - Fee Related GB2278737B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5148460A JPH06339246A (en) 1993-05-27 1993-05-27 Bearing device for miniature motor and its fixing method

Publications (3)

Publication Number Publication Date
GB9404369D0 GB9404369D0 (en) 1994-04-20
GB2278737A GB2278737A (en) 1994-12-07
GB2278737B true GB2278737B (en) 1996-05-15

Family

ID=15453255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9404369A Expired - Fee Related GB2278737B (en) 1993-05-27 1994-03-07 Miniature motor having bearing device and method for securing bearing device

Country Status (5)

Country Link
JP (1) JPH06339246A (en)
CN (1) CN1031909C (en)
GB (1) GB2278737B (en)
MY (1) MY131571A (en)
TW (1) TW228022B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002177884A (en) 2000-12-15 2002-06-25 Matsushita Electric Ind Co Ltd Miniature motor for vibration
JP2006254663A (en) * 2005-03-14 2006-09-21 Nidec Sankyo Corp Motor
KR100707783B1 (en) * 2005-10-10 2007-04-17 삼성전기주식회사 Color Wheel Unit and Fabricating Method therefore
KR101077977B1 (en) * 2009-06-22 2011-10-28 주식회사 모아텍 Rotor supporting structure for slim step motor
SE537562C2 (en) * 2011-03-26 2015-06-16 Indexator Rotator Sys Ab Device at a rotator
CN110286364B (en) * 2019-07-04 2023-07-18 金华市蓝海光电技术有限公司 Axial locking bearing device of rotary laser radar

Also Published As

Publication number Publication date
CN1031909C (en) 1996-05-29
GB9404369D0 (en) 1994-04-20
TW228022B (en) 1994-08-11
CN1095869A (en) 1994-11-30
JPH06339246A (en) 1994-12-06
MY131571A (en) 2007-08-30
GB2278737A (en) 1994-12-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980307