IT1078748B - IMPROVEMENT IN MINIATURE ELECTRIC MOTORS - Google Patents

IMPROVEMENT IN MINIATURE ELECTRIC MOTORS

Info

Publication number
IT1078748B
IT1078748B IT5130476A IT5130476A IT1078748B IT 1078748 B IT1078748 B IT 1078748B IT 5130476 A IT5130476 A IT 5130476A IT 5130476 A IT5130476 A IT 5130476A IT 1078748 B IT1078748 B IT 1078748B
Authority
IT
Italy
Prior art keywords
improvement
electric motors
miniature electric
miniature
motors
Prior art date
Application number
IT5130476A
Other languages
Italian (it)
Original Assignee
Seikosha Kk
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
Priority claimed from JP50115199A external-priority patent/JPS5814144B2/en
Priority claimed from JP1761476A external-priority patent/JPS52101404A/en
Application filed by Seikosha Kk filed Critical Seikosha Kk
Application granted granted Critical
Publication of IT1078748B publication Critical patent/IT1078748B/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
    • 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
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores
    • H02K21/185—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores with the axis of the rotor perpendicular to the plane of the armature

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
IT5130476A 1975-09-23 1976-09-16 IMPROVEMENT IN MINIATURE ELECTRIC MOTORS IT1078748B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50115199A JPS5814144B2 (en) 1975-09-23 1975-09-23 Kogata motor
JP1761476A JPS52101404A (en) 1976-02-20 1976-02-20 Miniature motor

Publications (1)

Publication Number Publication Date
IT1078748B true IT1078748B (en) 1985-05-08

Family

ID=26354166

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5130476A IT1078748B (en) 1975-09-23 1976-09-16 IMPROVEMENT IN MINIATURE ELECTRIC MOTORS

Country Status (7)

Country Link
BR (1) BR7606235A (en)
CH (1) CH598712A5 (en)
DE (1) DE2642432C2 (en)
FR (1) FR2326069A1 (en)
GB (1) GB1559993A (en)
HK (1) HK27883A (en)
IT (1) IT1078748B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543953A (en) * 1978-09-20 1980-03-28 Rhythm Watch Co Ltd Miniature motor for watch
WO1982000929A1 (en) * 1980-08-29 1982-03-18 Sa Elessach Stepping motor,particularly for electronic watch
EP1544693A1 (en) * 2003-12-19 2005-06-22 ETA SA Manufacture Horlogère Suisse Single phase step motor for a wristwatch type mechanism

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US872873A (en) * 1906-08-20 1907-12-03 Frank L West Mounting for hooks and eyes.
FR972469A (en) * 1941-03-29 1951-01-30 Hatot Leon Ets Improvements to magneto-electric devices
GB687948A (en) * 1948-12-02 1953-02-25 Telefonbau Und Normalzeit Ges Improvements in or relating to electromagnetic secondary clocks
FR1033643A (en) * 1951-01-31 1953-07-13 Hatot Leon Ets Improvements to magneto-electric clocks and similar devices
DE1078678B (en) * 1953-09-17 1960-03-31 An Des Etablissements Leon Hat Circuit arrangement for brushless motors
CH334520A (en) * 1956-04-27 1958-11-30 Hatot Leon Ets Electromagnetic pulse motor device
CH354506A (en) * 1958-05-02 1961-05-31 Horstmann Magnetics Ltd Rotary electromagnetic device
NL6414624A (en) * 1964-12-16 1966-06-17
US3878414A (en) * 1972-11-22 1975-04-15 Star Mfg Co Electric motor arrangement
FR2263632B1 (en) * 1974-03-07 1980-08-14 Seiko Instr & Electronics

Also Published As

Publication number Publication date
FR2326069A1 (en) 1977-04-22
GB1559993A (en) 1980-01-30
CH598712A5 (en) 1978-05-12
FR2326069B1 (en) 1982-07-30
BR7606235A (en) 1977-06-14
HK27883A (en) 1983-08-26
DE2642432C2 (en) 1984-11-15
DE2642432A1 (en) 1977-03-31

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930929