FR2382127A1 - Single phase stepping motor for watches - has rotor of magnetically soft material with high coercive force, with tooth-shaped main and auxiliary poles - Google Patents

Single phase stepping motor for watches - has rotor of magnetically soft material with high coercive force, with tooth-shaped main and auxiliary poles

Info

Publication number
FR2382127A1
FR2382127A1 FR7802036A FR7802036A FR2382127A1 FR 2382127 A1 FR2382127 A1 FR 2382127A1 FR 7802036 A FR7802036 A FR 7802036A FR 7802036 A FR7802036 A FR 7802036A FR 2382127 A1 FR2382127 A1 FR 2382127A1
Authority
FR
France
Prior art keywords
rotor
soft material
coercive force
high coercive
magnetically soft
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.)
Granted
Application number
FR7802036A
Other languages
French (fr)
Other versions
FR2382127B3 (en
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.)
Quarz Zeit AG
Original Assignee
Quarz Zeit AG
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 Quarz Zeit AG filed Critical Quarz Zeit AG
Publication of FR2382127A1 publication Critical patent/FR2382127A1/en
Application granted granted Critical
Publication of FR2382127B3 publication Critical patent/FR2382127B3/fr
Granted legal-status Critical Current

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
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/02—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type
    • H02K37/04—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type with rotors situated within the stators

Abstract

The motor has a multipole rotor and a stator consisting of two parts joined by a bridging element carrying the excitation winding. Each part changes at its free end into a number of poles equal to or smaller than that of rotor poles, pointing towards rotor periphery. The rotor (1) is made of magnetically soft material with high coercive force, and each rotor pole is tooth shaped, with a main pole (11) and a formed on it auxiliary pole (12), facing the direction of rotation. A permanent magnet circuit (8) defines the rotor (1) rest position when the stator (2) is not energised.
FR7802036A 1977-02-23 1978-01-25 Single phase stepping motor for watches - has rotor of magnetically soft material with high coercive force, with tooth-shaped main and auxiliary poles Granted FR2382127A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772707684 DE2707684A1 (en) 1977-02-23 1977-02-23 SINGLE-PHASE STEPPER MOTOR

Publications (2)

Publication Number Publication Date
FR2382127A1 true FR2382127A1 (en) 1978-09-22
FR2382127B3 FR2382127B3 (en) 1980-10-10

Family

ID=6001925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802036A Granted FR2382127A1 (en) 1977-02-23 1978-01-25 Single phase stepping motor for watches - has rotor of magnetically soft material with high coercive force, with tooth-shaped main and auxiliary poles

Country Status (3)

Country Link
JP (1) JPS53106407A (en)
DE (1) DE2707684A1 (en)
FR (1) FR2382127A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520631A2 (en) * 1991-06-24 1992-12-30 Wisconsin Alumni Research Foundation Micromechanical magnetic devices and method of producing the same
EP0601818A1 (en) * 1992-12-10 1994-06-15 Switched Reluctance Drives Ltd Switched reluctance motors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420034A1 (en) * 1984-05-29 1985-12-05 Vdo Adolf Schindling Ag, 6000 Frankfurt ELECTRIC STEPPER MOTOR
DE3444146C1 (en) * 1984-12-04 1985-10-10 Pforzheimer Uhren-Rohwerke Porta Gmbh & Co, 7530 Pforzheim Electromechanical stepper motor
SE465696B (en) * 1988-08-25 1991-10-14 Vilmos Toeroek ELECTRICAL ENGINE AND DEVICE FOR SUPPLY OF SUCH AN ENGINE
SE467852B (en) * 1990-12-28 1992-09-21 Vilmos Toeroek ELECTRIC ENGINE
US5886442A (en) * 1995-09-26 1999-03-23 Ogino; Sanshiro Magnetic attraction driving engine using permanent magnet
EP0966004A3 (en) * 1995-09-27 2000-01-26 Sanshiro Ogino Propulsion magnetic field generator and energy converter having a propulsion magnetic field generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520631A2 (en) * 1991-06-24 1992-12-30 Wisconsin Alumni Research Foundation Micromechanical magnetic devices and method of producing the same
EP0520631A3 (en) * 1991-06-24 1993-03-03 Wisconsin Alumni Research Foundation Micromechanical magnetic devices and method of producing the same
US5327033A (en) * 1991-06-24 1994-07-05 Wisconsin Alumni Research Foundation Micromechanical magnetic devices
EP0601818A1 (en) * 1992-12-10 1994-06-15 Switched Reluctance Drives Ltd Switched reluctance motors
US5548173A (en) * 1992-12-10 1996-08-20 Switched Reluctance Drives Limited Switched reluctance motors

Also Published As

Publication number Publication date
FR2382127B3 (en) 1980-10-10
DE2707684A1 (en) 1978-08-24
JPS53106407A (en) 1978-09-16

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