CH649438GA3 - - Google Patents

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Publication number
CH649438GA3
CH649438GA3 CH369983A CH369983A CH649438GA3 CH 649438G A3 CH649438G A3 CH 649438GA3 CH 369983 A CH369983 A CH 369983A CH 369983 A CH369983 A CH 369983A CH 649438G A3 CH649438G A3 CH 649438GA3
Authority
CH
Switzerland
Prior art keywords
winding
phi
rotor
separated
motor
Prior art date
Application number
CH369983A
Other languages
French (fr)
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 filed Critical
Priority to CH369983A priority Critical patent/CH649438GA3/fr
Priority to US06/625,148 priority patent/US4546278A/en
Priority to DE8484107699T priority patent/DE3464418D1/en
Priority to EP84107699A priority patent/EP0132633B1/en
Priority to JP59139245A priority patent/JPH082171B2/en
Publication of CH649438GA3 publication Critical patent/CH649438GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step-advancing mechanisms
    • G04C13/11—Secondary 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
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Stepping Motors (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromechanical Clocks (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The electromagnetic stepping motor comprises a first winding (g) and at least one second winding (p1). The stator (1) has four polar expansions (10, 11, 12, 13) surrounding the rotor (2) such expansions being separated by slots or saturable necks (6, 7, 8, 9). The flux generated by energization of the first winding is separated into two parts ( phi 1, phi 2) of which one ( phi 2) passes through the core of the second winding (p1) in order to subject the rotor to two magnetic fields which are substantially symmetric relative to two perpendicular axes (x, y). According to the connection of the windings and the signals applied, the motor may step forward or backward, or in either sense at an accelerated speed. Such a motor is particularly suited to drive a timepiece movement.
CH369983A 1983-07-06 1983-07-06 CH649438GA3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH369983A CH649438GA3 (en) 1983-07-06 1983-07-06
US06/625,148 US4546278A (en) 1983-07-06 1984-06-27 Winding for subjecting the rotor of a stepping motor to two magnetic fields symmetric to two perpendicular axes by energization of one winding
DE8484107699T DE3464418D1 (en) 1983-07-06 1984-07-03 Electromagnetic stepping motor
EP84107699A EP0132633B1 (en) 1983-07-06 1984-07-03 Electromagnetic stepping motor
JP59139245A JPH082171B2 (en) 1983-07-06 1984-07-06 Step motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH369983A CH649438GA3 (en) 1983-07-06 1983-07-06

Publications (1)

Publication Number Publication Date
CH649438GA3 true CH649438GA3 (en) 1985-05-31

Family

ID=4261622

Family Applications (1)

Application Number Title Priority Date Filing Date
CH369983A CH649438GA3 (en) 1983-07-06 1983-07-06

Country Status (5)

Country Link
US (1) US4546278A (en)
EP (1) EP0132633B1 (en)
JP (1) JPH082171B2 (en)
CH (1) CH649438GA3 (en)
DE (1) DE3464418D1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673751B5 (en) * 1988-05-11 1990-10-15 Asulab Sa
CH681500B5 (en) * 1991-04-19 1993-10-15 Ebauchesfabrik Eta Ag electromagnetic motor with two directions of rotation, in particular for a timepiece.
US5492509A (en) * 1994-06-06 1996-02-20 Ford Motor Company Operating range selection of an automatic transmission
TW288222B (en) * 1994-08-26 1996-10-11 Ebauchesfabrik Eta Ag
CH690882A5 (en) * 1996-12-04 2001-02-15 Ebauchesfabrik Eta Ag and two-phase electromechanical device electromechanical transducer comprising at least one such transducer.
DE19815230A1 (en) * 1998-04-04 1999-10-07 Mannesmann Vdo Ag Electric stepping motor for analogue display instrument
US6227822B1 (en) 1998-10-20 2001-05-08 Lakewood Engineering And Manufacturing Co. Fan with improved electric motor and mounting
JP4596762B2 (en) * 2003-09-11 2010-12-15 日本電産コパル株式会社 Stepping motor
US7372179B2 (en) * 2005-12-10 2008-05-13 Lee Chung Chiang Stepper motor having solenoid coils around end portions of stator poles
JP6349662B2 (en) * 2013-09-20 2018-07-04 カシオ計算機株式会社 Stepping motor and clock

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2010869A (en) * 1931-05-28 1935-08-13 Howard D Colman Induction motor
US2402380A (en) * 1944-03-02 1946-06-18 Oscar H Dicke Synchronous motor
US3052806A (en) * 1960-01-12 1962-09-04 Lee Royal Electric motors and stators therefor
CH597716A5 (en) * 1975-10-14 1978-04-14 Gretag Ag
SU811428A1 (en) * 1979-05-07 1981-03-07 Предприятие П/Я Г-4665 Method of control of synchronous pulse generator current shape
GB2054978B (en) * 1979-07-06 1984-06-13 Ebauches Sa Electromagnetic motor rotatable in either direction
FR2464516A2 (en) * 1979-08-27 1981-03-06 Lavet Marius Wrist-watch miniature stepping motor - has minimal drain current and extended coil carrying pole pieces

Also Published As

Publication number Publication date
EP0132633A1 (en) 1985-02-13
JPS6091855A (en) 1985-05-23
JPH082171B2 (en) 1996-01-10
US4546278A (en) 1985-10-08
EP0132633B1 (en) 1987-06-24
DE3464418D1 (en) 1987-07-30

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