GB2201843B - An electric motor - Google Patents
An electric motorInfo
- Publication number
- GB2201843B GB2201843B GB8720741A GB8720741A GB2201843B GB 2201843 B GB2201843 B GB 2201843B GB 8720741 A GB8720741 A GB 8720741A GB 8720741 A GB8720741 A GB 8720741A GB 2201843 B GB2201843 B GB 2201843B
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- armature
- electric motor
- motor frame
- magnet
- 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
- F16C39/00—Relieving load on bearings
- F16C39/06—Relieving load on bearings using magnetic means
- F16C39/063—Permanent magnets
-
- 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
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/02—Sliding-contact bearings
- F16C25/04—Sliding-contact bearings self-adjusting
- F16C25/045—Sliding-contact bearings self-adjusting with magnetic means to preload the bearing
-
- 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
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/54—Disc armature motors or generators
-
- 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
- H02K7/09—Structural association with bearings with magnetic bearings
-
- 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)
- Dc Machiner (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A motor comprising a motor frame (10, 11, 12), a moving coil armature (18, 19, 22) having a shaft (18) which is supported for rotation in the motor frame, and a thrust face (17) on one side of the armature, first and second magnets (33, 34) are mounted with like poles adjacent on the other side of the armature, magnet (33) with respect 10 the shaft and magnet (34) with respect to the motor frame so that repulsion forces between the magnets urge an end of the shaft 18a into contact with the thrust face 17. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8704827A GB2201841A (en) | 1987-03-02 | 1987-03-02 | An electric motor thrust bearing basing arrangement |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8720741D0 GB8720741D0 (en) | 1987-10-07 |
GB2201843A GB2201843A (en) | 1988-09-07 |
GB2201843B true GB2201843B (en) | 1990-12-12 |
Family
ID=10613175
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8704827A Withdrawn GB2201841A (en) | 1987-03-02 | 1987-03-02 | An electric motor thrust bearing basing arrangement |
GB8720741A Expired - Fee Related GB2201843B (en) | 1987-03-02 | 1987-09-03 | An electric motor |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8704827A Withdrawn GB2201841A (en) | 1987-03-02 | 1987-03-02 | An electric motor thrust bearing basing arrangement |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2201841A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219427B (en) * | 1988-05-04 | 1992-11-18 | M4 Data Ltd | Electric motors |
CA2463149C (en) * | 2002-08-30 | 2010-05-25 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Arrangement with a plain bearing |
EP3270490B1 (en) * | 2016-07-13 | 2020-04-29 | Schwarzer Precision GmbH & Co. KG | Pump and method for reducing or eliminating noise and/or vibrations for pumps |
CN109199153A (en) * | 2017-07-07 | 2019-01-15 | 广东美的生活电器制造有限公司 | food processor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1034733B (en) * | 1974-04-11 | 1979-10-10 | Teldix Gmbh | ELECTRIC MACHINE |
NL8502058A (en) * | 1985-07-17 | 1987-02-16 | Philips Nv | ELECTRICAL MACHINE WITH MAGNETIC BEARING FEATURES. |
-
1987
- 1987-03-02 GB GB8704827A patent/GB2201841A/en not_active Withdrawn
- 1987-09-03 GB GB8720741A patent/GB2201843B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2201843A (en) | 1988-09-07 |
GB8704827D0 (en) | 1987-04-08 |
GB8720741D0 (en) | 1987-10-07 |
GB2201841A (en) | 1988-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |