FR2412103B1 - - Google Patents

Info

Publication number
FR2412103B1
FR2412103B1 FR7834914A FR7834914A FR2412103B1 FR 2412103 B1 FR2412103 B1 FR 2412103B1 FR 7834914 A FR7834914 A FR 7834914A FR 7834914 A FR7834914 A FR 7834914A FR 2412103 B1 FR2412103 B1 FR 2412103B1
Authority
FR
France
Prior art keywords
poles
joined
stators
interposed
elements
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
Application number
FR7834914A
Other languages
English (en)
French (fr)
Other versions
FR2412103A1 (fr
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of FR2412103A1 publication Critical patent/FR2412103A1/fr
Application granted granted Critical
Publication of FR2412103B1 publication Critical patent/FR2412103B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C15/00—Clocks driven by synchronous motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/141—Stator cores with salient poles consisting of C-shaped cores
    • H02K1/143—Stator cores with salient poles consisting of C-shaped cores of the horse-shoe type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/021—Magnetic cores
    • H02K15/022—Magnetic cores with salient poles
    • 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
    • H02K37/16—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 having horseshoe armature cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromechanical Clocks (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Electric Clocks (AREA)
FR7834914A 1977-12-13 1978-12-12 Dispositif moteur pour montre electronique et procede de fabrication de ce moteur Granted FR2412103A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1531677A CH625665B (fr) 1977-12-13 1977-12-13 Mouvement de montre electronique et procede de fabrication de ce mouvement.

Publications (2)

Publication Number Publication Date
FR2412103A1 FR2412103A1 (fr) 1979-07-13
FR2412103B1 true FR2412103B1 (enExample) 1983-08-26

Family

ID=4408112

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834914A Granted FR2412103A1 (fr) 1977-12-13 1978-12-12 Dispositif moteur pour montre electronique et procede de fabrication de ce moteur

Country Status (6)

Country Link
US (1) US4277704A (enExample)
JP (1) JPS5487812A (enExample)
CH (1) CH625665B (enExample)
DE (1) DE2853396B2 (enExample)
FR (1) FR2412103A1 (enExample)
GB (1) GB2010593B (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361772A (en) * 1974-03-07 1982-11-30 Kabushiki Kaisha Daini Seikosha Micro stepping motor for electronic watches
CH623712B (fr) * 1978-12-06 Ebauchesfabrik Eta Ag Stator monobloc pour moteur pas a pas d'horlogerie.
CH621916B (fr) * 1979-02-27 Ebauchesfabrik Eta Ag Procede de fabrication de stators pour moteurs pas a pas de montres electroniques, et moteur realise selon le procede.
CH629069B (fr) * 1979-05-11 Fontainemelon Horlogerie Moteur electromagnetique et procede pour sa fabrication.
US4437768A (en) 1980-04-11 1984-03-20 Citizen Watch Company Limited Movement structure for an electronic timepiece
DE3107283C2 (de) * 1981-02-26 1984-10-11 Naučno-issledovatel'skij institut časovoj promyšlennosti, Moskau/Moskva Einphasiger Kleinstschrittmotor
US4369385A (en) * 1981-03-17 1983-01-18 Malkin Daniel D Single-phase step micromotor
US4491751A (en) * 1981-04-09 1985-01-01 Moskovsky Energetichesky Institut Single-phase step motor
DE8521736U1 (de) * 1985-07-27 1985-09-26 Timex Corp., Waterbury, Conn. Stator für einen Schrittmotor einer Kleinuhr
DE4429259A1 (de) * 1994-08-18 1996-02-22 Moto Meter Gmbh Schrittmotor mit vorwiegend axialer Rotormagnetisierung
WO1999064937A1 (en) * 1998-06-11 1999-12-16 Citizen Watch Co., Ltd. 2-pole stepper motor for timepiece
US6975049B2 (en) * 2003-10-29 2005-12-13 A. O. Smith Corporation Electrical machine and method of manufacturing the same
GB2468297B (en) * 2009-03-03 2014-11-19 Dyson Technology Ltd Electric machine with an asymmetric stator core
GB2500580B (en) * 2012-03-23 2015-07-08 Dyson Technology Ltd Stator for an electrical machine
US10193425B2 (en) * 2015-01-20 2019-01-29 Seiko Instruments Inc. Stepping motor, timepiece movement, timepiece, and manufacturing method of stepping motor
CN106487109A (zh) * 2015-09-01 2017-03-08 德昌电机(深圳)有限公司 单相永磁电机及其定子磁芯
CN109586525B (zh) * 2017-09-29 2023-02-17 精工电子有限公司 电机用定子的制造方法以及电机用定子

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121699A (en) * 1936-02-17 1938-06-21 Janzen Otto Self-starting single-phase alternating current synchronous motor
CH259575A (de) 1946-10-12 1949-01-31 Ericsson Telefon Ab L M Verfahren zur Herstellung von Blechpaketen aus Blechbändern für elektrische Maschinen.
US2804680A (en) * 1954-10-22 1957-09-03 Nat Pneumatic Company Inc Motor field construction and method of making same
US3142774A (en) * 1960-12-22 1964-07-28 Gen Time Corp Synchronous timing motor assembly
FR1466452A (fr) * 1965-11-29 1967-01-20 Perfectionnements à la réalisation des stators pour moteurs électriques
US3457445A (en) * 1967-12-19 1969-07-22 Gen Electric Laminated rotors and stators with flux barriers for synchronous induction motors and method of making the same
JPS5049611U (enExample) * 1973-09-05 1975-05-15
JPS5842709B2 (ja) 1973-09-05 1983-09-21 セイコーエプソン株式会社 スイシヨウドケイヨウステツプモ−タ−
JPS5746301B2 (enExample) * 1974-05-14 1982-10-02
JPS5227509A (en) * 1975-08-28 1977-03-01 Seiko Epson Corp Stepping motor for timepieces
JPS5239111A (en) * 1975-09-25 1977-03-26 Citizen Watch Co Ltd Pulse motor for electronic clock
JPS52147713A (en) * 1976-06-04 1977-12-08 Citizen Watch Co Ltd Stepping motor

Also Published As

Publication number Publication date
CH625665B (fr)
JPS5487812A (en) 1979-07-12
GB2010593B (en) 1982-10-20
GB2010593A (en) 1979-06-27
US4277704A (en) 1981-07-07
DE2853396B2 (de) 1980-06-12
FR2412103A1 (fr) 1979-07-13
CH625665GA3 (enExample) 1981-10-15
DE2853396A1 (de) 1979-06-21

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