DE2725381C3 - Schrittmotor für eine elektronische Uhr - Google Patents

Schrittmotor für eine elektronische Uhr

Info

Publication number
DE2725381C3
DE2725381C3 DE2725381A DE2725381A DE2725381C3 DE 2725381 C3 DE2725381 C3 DE 2725381C3 DE 2725381 A DE2725381 A DE 2725381A DE 2725381 A DE2725381 A DE 2725381A DE 2725381 C3 DE2725381 C3 DE 2725381C3
Authority
DE
Germany
Prior art keywords
rotor
stator
protruding
pole
recessed
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
DE2725381A
Other languages
German (de)
English (en)
Other versions
DE2725381A1 (de
DE2725381B2 (de
Inventor
Shinya Kawasaki Kanagawa Inabe
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.)
NILES PARTS CO Ltd TOKYO JP
Original Assignee
NILES PARTS CO Ltd TOKYO JP
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 NILES PARTS CO Ltd TOKYO JP filed Critical NILES PARTS CO Ltd TOKYO JP
Publication of DE2725381A1 publication Critical patent/DE2725381A1/de
Publication of DE2725381B2 publication Critical patent/DE2725381B2/de
Application granted granted Critical
Publication of DE2725381C3 publication Critical patent/DE2725381C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
DE2725381A 1976-12-14 1977-06-04 Schrittmotor für eine elektronische Uhr Expired DE2725381C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16755176 1976-12-14

Publications (3)

Publication Number Publication Date
DE2725381A1 DE2725381A1 (de) 1978-06-15
DE2725381B2 DE2725381B2 (de) 1980-06-19
DE2725381C3 true DE2725381C3 (de) 1981-05-27

Family

ID=15851806

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2725381A Expired DE2725381C3 (de) 1976-12-14 1977-06-04 Schrittmotor für eine elektronische Uhr

Country Status (3)

Country Link
US (1) US4162418A (enExample)
DE (1) DE2725381C3 (enExample)
FR (1) FR2374767A1 (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274026A (en) * 1977-12-27 1981-06-16 Tri-Tech, Inc. Electric rotating machine
US4277841A (en) * 1979-03-14 1981-07-07 General Time Corporation Elapsed time indicator
CH647823A5 (de) * 1980-08-05 1985-02-15 Luwa Ag Vorrichtung zum verdichten von fasern.
AT373743B (de) * 1981-05-21 1984-02-10 Philips Nv Selbstanlaufender zweipoliger einphasensynchronmotor
CS232378B1 (en) * 1982-11-04 1985-01-16 Josef Vecer Stepping electric motor for electronic watch
US5130591A (en) * 1989-01-19 1992-07-14 Sanyo Electric Co., Ltd. Shaded pole motor
US6348752B1 (en) 1992-04-06 2002-02-19 General Electric Company Integral motor and control
GB2290911A (en) * 1994-06-28 1996-01-10 Dafydd Roberts Rotary electromagnetic actuator
US5982122A (en) * 1996-12-05 1999-11-09 General Electric Company Capacitively powered motor and constant speed control therefor
US6548922B1 (en) * 1998-06-11 2003-04-15 Citizen Watch Co., Ltd. 2-Pole stepper motor for timepiece
KR100429989B1 (ko) * 2001-05-26 2004-05-03 엘지전자 주식회사 스켈리턴 타입 무정류자 전동기
DE102006058143A1 (de) * 2006-12-09 2008-06-12 Wilo Ag Einphasige permanent-erregte Synchronmaschine
GB2468310B (en) * 2009-03-03 2015-01-07 Dyson Technology Ltd Stator core
JP6009960B2 (ja) * 2013-02-07 2016-10-19 ミネベア株式会社 アクチュエータ
CN104283335B (zh) * 2014-05-28 2017-08-18 莱克电气股份有限公司 一种无刷吸尘器电机的定子结构及其成型方法
EP3032722B1 (en) * 2014-12-11 2020-02-19 Johnson Electric International AG Rotor, motor, pump and cleaning apparatus
CN106487188B (zh) * 2015-09-01 2021-04-20 德昌电机(深圳)有限公司 单相永磁电机及其定子磁芯
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
CN106849601B (zh) * 2017-04-14 2018-10-12 大连碧蓝节能环保科技有限公司 单相多极永磁步进电动机
US20240421685A1 (en) * 2023-06-16 2024-12-19 Regal Beloit America, Inc. Non-axisymmetric motor with integrated magnetic gearing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311445C3 (de) * 1973-03-08 1985-03-14 Vdo Adolf Schindling Ag, 6000 Frankfurt Elektrische Uhr mit Einphasenschrittmotor
US3857053A (en) * 1973-04-09 1974-12-24 Controls Co Of America Synchronous motor stator pole arrangement
JPS505806U (enExample) * 1973-05-15 1975-01-22
US4004168A (en) * 1974-08-08 1977-01-18 Tri-Tech, Inc. Electric rotating machine
CH613359GA3 (en) * 1974-08-28 1979-09-28 Pulsed motor for horometrical apparatus
JPS5239111A (en) * 1975-09-25 1977-03-26 Citizen Watch Co Ltd Pulse motor for electronic clock
JPS5240712A (en) * 1975-09-27 1977-03-29 Citizen Watch Co Ltd Pulse motor for electronic clocks
US4055785A (en) * 1976-01-12 1977-10-25 Fumio Nakajima Stepping motor for electronic timepiece
US4088909A (en) * 1977-02-18 1978-05-09 Kanto Seiki Company, Limited Stepping motor for timekeeping mechanism

Also Published As

Publication number Publication date
FR2374767A1 (fr) 1978-07-13
FR2374767B3 (enExample) 1980-03-21
US4162418A (en) 1979-07-24
DE2725381A1 (de) 1978-06-15
DE2725381B2 (de) 1980-06-19

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee