SG193667A1 - Brushless motor and disk drive apparatus - Google Patents
Brushless motor and disk drive apparatus Download PDFInfo
- Publication number
- SG193667A1 SG193667A1 SG2012023453A SG2012023453A SG193667A1 SG 193667 A1 SG193667 A1 SG 193667A1 SG 2012023453 A SG2012023453 A SG 2012023453A SG 2012023453 A SG2012023453 A SG 2012023453A SG 193667 A1 SG193667 A1 SG 193667A1
- Authority
- SG
- Singapore
- Prior art keywords
- brushless motor
- magnetic member
- ere
- armature
- eee
- Prior art date
Links
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- LKPZQKREAUELRB-UHFFFAOYSA-N 4,5-dihydroxy-3-methoxy-6-[(3,4,5,6-tetrahydroxyoxan-2-yl)methoxy]oxane-2-carboxylic acid Chemical compound COC1C(O)C(O)C(OCC2OC(O)C(O)C(O)C2O)OC1C(=O)O LKPZQKREAUELRB-UHFFFAOYSA-N 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
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- RKFCDGOVCBYSEW-AUUKWEANSA-N tmeg Chemical compound COC=1C(OC)=CC(C(OC(C=2OC)=C34)=O)=C3C=1OC(=O)C4=CC=2O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O RKFCDGOVCBYSEW-AUUKWEANSA-N 0.000 description 1
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- NLVFBUXFDBBNBW-PBSUHMDJSA-N tobramycin Chemical compound N[C@@H]1C[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N NLVFBUXFDBBNBW-PBSUHMDJSA-N 0.000 description 1
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields 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
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
- Rotational Drive Of Disk (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Windings For Motors And Generators (AREA)
Abstract
A stationary unit of a brushless motor incihdes a flat armature having a plurality of coil patterns and a flat magnetic member surrounding a center axis. The magnetic member makes contact with an upper surface of the armature. Further, a rotarv unit of the brushless motor includes a magnet opposed to the upper surface of the armature. In the brushless motor, the magnetic flux generated between the10 armature and the magnets is supplied from being leaked radially outward beyond the magnetic member. The magnetic member has an outer peripheral port ion arranged radially outward of an outer circumferential surface of the magnet and the coil patterns. This restrains magnetic flux from15 being absorbed by the magnetic member itself. As a result, it becomes possible to increase the driving efficiency of the brushless motor.(Fig, 1)
Description
TIT RAE—HBLIORT 4 AV EFHEE
BRUSHLESS MOTOR AND DISK DRIVE APPARATUS
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The ahove and other elements, features, steps, characteristics and advantages . of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention with reference to the attached drawings.
BRIEF DESCRIPTON OF DRAWINGS
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Features of the above-described preferred embodiments and the modifications thereof may be combined appropriately as long as no conflict arises.
While preferred embodiments of the present invention have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present invention. The scope of the present invention, therefore, is to be determined solely by the following claims.
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Claims (14)
1. 793 RE—FTHh-T, FILE & ARC EF Ext LUCENE 4 I LU Cel Ex FT AE 72 [Bl En Eh & BAEZ. AFC ER IE BRL. RIDE SBE ORFRAEIICE NT, EFICECD PLEIIEART 2 FRISIAN SK ROEHL T & RIFE F236 — REHM &. RIFE To LEC EAL . Fit LEA Ee RR OBIE & HE Fr CIE EL Ee : EEO REELS I ORI E RELL THAR ABME EO ANT WEST E AiR 7ICEES Nn, RE To LtEmicdmT sv ry b&, = HIFLEME FIT, AAFmcEF an EHO aA vd — 0 hGH, RIES OA REN., fv 22 yy FOAREBIUMEZ aA LF —0 Lh, & FRANCE E ETH,
2. BRE IWREHDO TI LAE —FITBWT, FIFE TI. Bie A ANY — ERB ER THY. RIC RAE ERAT 1, RIGERIES EAR & IBID EM THY AIRLEEMEERAT 1X, BIE — AMA 0 bm CBRE EE DO FEE ORFITE -> T, JAH STD,
3. BAREILIZZLEHO IV RAE—HFIBWT, AEH FIL. ERAN — AS DEBRERTHY AEE EMIT. AIRE BERGE DAT TVS,
4. BHREI1ICHEBEO TIL RAET—FIZBWT, BIC ANT HL. gift 7 FR y bO LEE EHRT LE 1L THE. AIEEE 1 TEHOREFMAAB LE REFANMO DRC Eb —FIUBT HE 2 Fl & BB Fh TECH 2 Foi, ss 1 FEL» FANALE LL. Aife~ ZF OTHE, FIRE 2 TE LY TANCE L. FIRE 2 THERE 7 2 y hE DORIC, EBHEHRBRAETS,
5. BRELIIZLHFOT FLV AE—HFITBWNT, Aife~ 7 Fy POTHEEBIEBEEEMO EEE OREO R/NMEE, it~ Ry POT HERE 2ANNRNE OEE EOEBOR/NMELY., EU,
6. BREILILEEBRDODT IV LV AE—FIZBWT, AIRC AT IE, MB THY. RIERPLE EEE ICEE SNL TNA,
7. BBRELIEZHEO TFL AE—Z ZB, AEC HS HEHE IT, AIRCER IEEE OBA & |, ATRESIA OE LE ofic, BEKELE HH ARLE LEB LURES Eb —F0, miniEEREICEFmOBE ZH — g —
THELEN EST,
8. TF 4 AVBEEEIIB WT, FHRELEZEO TT VL AREF & Bist 7 7 LAT —F ORIG EIEEC EH IW Tc A27Cx LL, EHRoFAL LEB X PEEXRAHLDOLRELEL—FEITHI>IT 7 ERE LE, J sX—= EO Bist — 2 EH EAR NL CHESS EFONEC, aiftEESE LOHR TT 2 AEB, WEEN TNA
9. TIL LAE—F THT. BEE ATER Eo LCoS 42 0 L CRIS 2 ERE & BE I BEC 5% 1k E61 AEE MEORFAARICBNT, ETCHED PLENCER TS FRIED DH WOEHET &. ATL EMF & FFT 2 — XH LE, EE IR aise EEE ER i. HEE ORE EB LCR REAL FEE ALEEE DO AAT HEHE ETT & Ait EM To Emicsmi a7 52y bE, iE FO TEIIm TT 2e—F3—7 Lb = FIECEE SE HEARS. ARLE oA &, mE ESA OEM -ofic, BiEEEES Hr AREA LURE EL —FR, files E+ F RT HEE BA 55, AEC 3 A EBHT IL, FIRE TF OTRAS NT, MRS LEICEART HHMI 2 ERE & BEATE Io EFERANCIE NT, BIER» > EF ~mi TEC A KHER DAR — A THE mite —# 2-7 OFFRAMICAET 2H RE & BE I AIEEE MAEOEES., fim 7 OEE 0 BF mAMICALE L. BEC SINE, Aide —& 3 — 7 BEE Ih. AE _N—AMEOAREE., fic 7 NE ERA Fa 27 0, B1REEAEZN LCEFRIZEME LL, iE E SE, Ae — X37 OAFE ER, FH2WMMAE NL CEFMmIZHML MEH 1IEMOoRFHOBER, MEE 2EBEORFMOBRLY. ha,
10. BREQICFHEEB OT I VAE—HIZBWNT, Hi E LEMom RoE S EE, MEE2BEMOBFFROES LY, Eu,
11. BREW TF LV LRE—ZIZBWT, BIEN —AMEoARmE. Bim AZ EORNEE ES, ARF LEBEL TRIER WRmd 5,
12. FREQ FTV ILAE—FIZBWT,
AIRC EERE Ase 7 EOE F ENA ALET DRIER EE HITHL, AIEEE MAE ORIEEmS., ABR REH ED BFMARIZAE LL. BEE 1 ERE. aie EosAmL va FimaAalifirgss7 7 vv AT—#,
13. FREQILHEFO TTL LAT HIZB, FE IREORFmMOEREE, 0. 2mm TFT THD,
14. F4 A7REERIZB WT, ARBORMDT 7 VV AEF b Bist 7 7 VAT — 2 Om aERSICEFEESNZT 4 AZ L, BEOoEABE LBL NEE RALDLRS EL —FHETHIT 72 AEE. brs ACN
HL. HIE — AE ERICA NN —& THRE ENHIEEROATIC, AiREETERL XL UHIEET 7 TAEB, WEIL TWAS,
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG2012023453A SG193667A1 (en) | 2012-03-30 | 2012-03-30 | Brushless motor and disk drive apparatus |
| CN201310090813XA CN103368347A (en) | 2012-03-30 | 2013-03-21 | Brushless motor and disc driving apparatus |
| CN201510237460.0A CN104852503A (en) | 2012-03-30 | 2013-03-21 | Brushless motor and disk drive apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG2012023453A SG193667A1 (en) | 2012-03-30 | 2012-03-30 | Brushless motor and disk drive apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG193667A1 true SG193667A1 (en) | 2013-10-30 |
Family
ID=49369078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2012023453A SG193667A1 (en) | 2012-03-30 | 2012-03-30 | Brushless motor and disk drive apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103368347A (en) |
| SG (1) | SG193667A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9318928B2 (en) | 2012-04-03 | 2016-04-19 | Nidec Corporation | Brushless motor, disk drive apparatus and brushless motor manufacturing method |
| US9209656B2 (en) | 2012-05-22 | 2015-12-08 | Nidec Corporation | Brushless motor and disk drive apparatus |
| CN106655683B (en) * | 2015-10-30 | 2019-02-22 | 王晓春 | A kind of disk permanent magnet generator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07308058A (en) * | 1994-05-11 | 1995-11-21 | Tokyo Parts Ind Co Ltd | Spindle motor for driving disc |
| US5598048A (en) * | 1994-08-12 | 1997-01-28 | Seagate Technology, Inc. | Integrated passive magnetic bearing system and spindle magnet for use in an axial magnet spindle motor |
| US7265939B2 (en) * | 2003-03-31 | 2007-09-04 | Matsushita Electric Industrial Co., Ltd. | Spindle motor and disk drive unit |
| JP2006105177A (en) * | 2004-09-30 | 2006-04-20 | Matsushita Electric Ind Co Ltd | Fluid bearing device, spindle motor, and disk recording and reproducing device |
| JP2007252167A (en) * | 2006-03-20 | 2007-09-27 | Matsushita Electric Ind Co Ltd | Disk drive motor and information recording/reproducing device |
| KR101130628B1 (en) * | 2010-04-07 | 2012-04-02 | 니혼 덴산 가부시키가이샤 | Spindle motor and storage disk drive having the same |
| JP2012193840A (en) * | 2010-08-09 | 2012-10-11 | Nippon Densan Corp | Spindle motor and disk drive |
| CN201947136U (en) * | 2011-03-11 | 2011-08-24 | 珠海格力电器股份有限公司 | Axial air gap motor |
-
2012
- 2012-03-30 SG SG2012023453A patent/SG193667A1/en unknown
-
2013
- 2013-03-21 CN CN201310090813XA patent/CN103368347A/en active Pending
- 2013-03-21 CN CN201510237460.0A patent/CN104852503A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN104852503A (en) | 2015-08-19 |
| CN103368347A (en) | 2013-10-23 |
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