JPS566661A - Small-sized motor for clock - Google Patents

Small-sized motor for clock

Info

Publication number
JPS566661A
JPS566661A JP8242279A JP8242279A JPS566661A JP S566661 A JPS566661 A JP S566661A JP 8242279 A JP8242279 A JP 8242279A JP 8242279 A JP8242279 A JP 8242279A JP S566661 A JPS566661 A JP S566661A
Authority
JP
Japan
Prior art keywords
stator
rotor
film
nonmagnetic plate
clock
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.)
Pending
Application number
JP8242279A
Other languages
Japanese (ja)
Inventor
Hideki Morishima
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.)
Rhythm Watch Co Ltd
Original Assignee
Rhythm Watch Co Ltd
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 Rhythm Watch Co Ltd filed Critical Rhythm Watch Co Ltd
Priority to JP8242279A priority Critical patent/JPS566661A/en
Publication of JPS566661A publication Critical patent/JPS566661A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

PURPOSE:To elevate the positioning accuracy of stator of a clock motor by a method wherein a magnetic metal film like a film of permalloy, etc., is formed in a stator- form on a nonmagnetic plate surface, and the nonmagnetic plate is made to be used as a shaft supporter of rotor. CONSTITUTION:Ferromagnetic metal films of Ni, Fe, Co, etc., or ferromagnetic compound films of alloy or ferrite, etc., are formed by vacuum evaporation, etc., to constitute stators 4a, 4b, and a hole 6 for supporting a shaft of rotor 30 and a hole 8 for positioning a coil 40 are formed on the nonmagnetic plate. As the stator 4 is constituted in a film-form by means of evaporation, etc., the positioning accuracy of stator poles 4c, 4d and the positoning accuracy of the stator poles 4c, 4d against a rotor magnet 36 can be highly elevated.
JP8242279A 1979-06-29 1979-06-29 Small-sized motor for clock Pending JPS566661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8242279A JPS566661A (en) 1979-06-29 1979-06-29 Small-sized motor for clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8242279A JPS566661A (en) 1979-06-29 1979-06-29 Small-sized motor for clock

Publications (1)

Publication Number Publication Date
JPS566661A true JPS566661A (en) 1981-01-23

Family

ID=13774146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8242279A Pending JPS566661A (en) 1979-06-29 1979-06-29 Small-sized motor for clock

Country Status (1)

Country Link
JP (1) JPS566661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120389U (en) * 1984-01-25 1985-08-14 株式会社精工舎 Protection devices for integrated circuits in watches, etc.
JPS6344186U (en) * 1986-09-08 1988-03-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120389U (en) * 1984-01-25 1985-08-14 株式会社精工舎 Protection devices for integrated circuits in watches, etc.
JPS6344186U (en) * 1986-09-08 1988-03-24

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