CH653521GA3 - - Google Patents
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- Publication number
- CH653521GA3 CH653521GA3 CH504983A CH504983A CH653521GA3 CH 653521G A3 CH653521G A3 CH 653521GA3 CH 504983 A CH504983 A CH 504983A CH 504983 A CH504983 A CH 504983A CH 653521G A3 CH653521G A3 CH 653521GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- sense
- opposite
- motor
- fluxes
- phi
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C13/00—Driving mechanisms for clocks by master-clocks
- G04C13/08—Slave-clocks actuated intermittently
- G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
- G04C13/11—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
Abstract
The electromagnetic stepping motor of the invention comprises two rotors coupled to a common transmission wheel. The magnetic circuit of the stator is arranged so as to subject the respective rotors to fluxes of opposite senses phi 1, phi 2 when the winding is energized. The magnetization sense of the first rotor is opposite to the magnetization sense of the second rotor in a manner such that they turn in the same sense when subjected to said opposite sense fluxes. This arrangement permits either a diminution of the volume or a decrease in energy consumption of the motor and at the same time increases the security of running thereof in the presence of external magnetic fields. Such a motor is particularly adapted to small volume horological applications.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH504983A CH653521GA3 (en) | 1983-09-16 | 1983-09-16 | |
US06/649,347 US4563604A (en) | 1983-09-16 | 1984-09-11 | Electromagnetic stepping motor with two coupled rotors |
DE8484110853T DE3464419D1 (en) | 1983-09-16 | 1984-09-12 | Electro-magnetic stepping motor with two coupled rotors |
EP84110853A EP0143227B1 (en) | 1983-09-16 | 1984-09-12 | Electro-magnetic stepping motor with two coupled rotors |
JP59190732A JPS6087657A (en) | 1983-09-16 | 1984-09-13 | Single phase electromagnetic step motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH504983A CH653521GA3 (en) | 1983-09-16 | 1983-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH653521GA3 true CH653521GA3 (en) | 1986-01-15 |
Family
ID=4287092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH504983A CH653521GA3 (en) | 1983-09-16 | 1983-09-16 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4563604A (en) |
EP (1) | EP0143227B1 (en) |
JP (1) | JPS6087657A (en) |
CH (1) | CH653521GA3 (en) |
DE (1) | DE3464419D1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5057726A (en) * | 1990-10-10 | 1991-10-15 | Westinghouse Electric Corp. | Structureborne vibration-compensated motor arrangement having back-to-back twin AC motors |
EP0568751B1 (en) * | 1992-05-04 | 1995-04-05 | Detra Sa | Driving means for time pieces |
EP0679970B1 (en) * | 1994-04-25 | 1998-06-17 | Detra Sa | Multiphase-type stepping motor |
FR2724271B1 (en) * | 1994-09-02 | 1996-10-25 | Ebauchesfabrik Eta Ag | ELECTROMECHANICAL TRANSDUCER HAVING TWO ROTORS |
TW288222B (en) * | 1994-08-26 | 1996-10-11 | Ebauchesfabrik Eta Ag | |
EP0698957B1 (en) * | 1994-08-26 | 1998-01-07 | Eta SA Fabriques d'Ebauches | Electromechanical transducer having two rotors |
FR2743216B1 (en) * | 1995-12-28 | 1998-02-06 | Ebauchesfabrik Eta Ag | MULTIROTOR ELECTROMECHANICAL TRANSDUCER |
FR2752496B1 (en) * | 1996-08-14 | 1998-10-23 | Ebauchesfabrik Eta Ag | ELECTROMECHANICAL TRANSDUCER HAVING TWO PERMANENT MAGNET ROTORS |
CH690881A5 (en) | 1996-12-04 | 2001-02-15 | Ebauchesfabrik Eta Ag | and electromechanical phase electromechanical transducer device comprising at least one such transducer. |
EP0848480B1 (en) * | 1996-12-04 | 2003-02-19 | Eta SA Fabriques d'Ebauches | Single-phase electromechanical transducer and electromechanical device with at least one of such transducer |
GB2324956A (en) | 1997-05-06 | 1998-11-11 | Notetry Ltd | Motor for domestic appliance |
JP2001258227A (en) * | 2000-01-06 | 2001-09-21 | Seiko Epson Corp | Power generation equipment, clocking device and electronic equipment provided therewith, and adjusting method for cogging torque of power generation equipment |
US6975049B2 (en) * | 2003-10-29 | 2005-12-13 | A. O. Smith Corporation | Electrical machine and method of manufacturing the same |
EP1903364A1 (en) * | 2006-09-25 | 2008-03-26 | Dialog Imaging Systems GmbH | Compact camera module with stationary actutor for zoom modules with movable shutter and aperture mechanism |
ATE461466T1 (en) * | 2006-09-25 | 2010-04-15 | Dialog Imaging Systems Gmbh | COMPACT CAMERA MODULE WITH CLOCK MOVEMENT STEPPER MOTOR |
FR2928501B1 (en) * | 2008-03-04 | 2011-04-01 | Schneider Electric Ind Sas | DEVICE FOR GENERATING ENERGY WITH TWO MOVING PARTS |
US9197117B2 (en) * | 2012-04-20 | 2015-11-24 | Healey Magnetics, Llc | Electromagnetic system with magnetically coupled rotors |
JP2014082808A (en) * | 2012-10-12 | 2014-05-08 | Kaneko:Kk | Electromagnetic rotary drive unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116577A (en) * | 1981-01-12 | 1982-07-20 | Seikosha Co Ltd | Small-sized motor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1734941A (en) * | 1928-01-05 | 1929-11-05 | George P Cowles | Electrical actuating means for clocks and other instruments |
US3757149A (en) * | 1972-02-16 | 1973-09-04 | Molon Motor & Coil Corp | Shading coil motor assembly |
JPS4977117A (en) * | 1972-11-30 | 1974-07-25 | ||
JPS50136609A (en) * | 1974-04-19 | 1975-10-30 | ||
JPS5380510A (en) * | 1976-12-24 | 1978-07-17 | Seiko Instr & Electronics Ltd | Convertors |
JPS57149686U (en) * | 1981-03-16 | 1982-09-20 | ||
JPS5812561A (en) * | 1981-07-15 | 1983-01-24 | Seikosha Co Ltd | Miniature synchronous motor |
CH647382GA3 (en) * | 1982-04-21 | 1985-01-31 |
-
1983
- 1983-09-16 CH CH504983A patent/CH653521GA3/fr unknown
-
1984
- 1984-09-11 US US06/649,347 patent/US4563604A/en not_active Expired - Fee Related
- 1984-09-12 EP EP84110853A patent/EP0143227B1/en not_active Expired
- 1984-09-12 DE DE8484110853T patent/DE3464419D1/en not_active Expired
- 1984-09-13 JP JP59190732A patent/JPS6087657A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116577A (en) * | 1981-01-12 | 1982-07-20 | Seikosha Co Ltd | Small-sized motor |
Non-Patent Citations (1)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 211 (E-137) [1089], 23 octobre 1982 & JP - A - 57 116 577 (SEIKOUSHIYA K.K.) (20-07-1982) * |
Also Published As
Publication number | Publication date |
---|---|
EP0143227A1 (en) | 1985-06-05 |
US4563604A (en) | 1986-01-07 |
JPH023392B2 (en) | 1990-01-23 |
DE3464419D1 (en) | 1987-07-30 |
EP0143227B1 (en) | 1987-06-24 |
JPS6087657A (en) | 1985-05-17 |
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