FR2276724A1 - LOW DIMENSIONS STEP MOTOR - Google Patents

LOW DIMENSIONS STEP MOTOR

Info

Publication number
FR2276724A1
FR2276724A1 FR7517726A FR7517726A FR2276724A1 FR 2276724 A1 FR2276724 A1 FR 2276724A1 FR 7517726 A FR7517726 A FR 7517726A FR 7517726 A FR7517726 A FR 7517726A FR 2276724 A1 FR2276724 A1 FR 2276724A1
Authority
FR
France
Prior art keywords
rotor
motor
pole faces
bush
step motor
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
FR7517726A
Other languages
French (fr)
Other versions
FR2276724B1 (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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of FR2276724A1 publication Critical patent/FR2276724A1/en
Application granted granted Critical
Publication of FR2276724B1 publication Critical patent/FR2276724B1/fr
Granted 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 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

Landscapes

  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromechanical Clocks (AREA)
  • Shutters For Cameras (AREA)
  • Motor Or Generator Frames (AREA)
  • Control Of Stepping Motors (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Seats For Vehicles (AREA)
  • Adornments (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

1463223 Stepping motors DAINI SEIKOSHA KK 19 May 1975 [25 June 1974] 21286/75 Heading H2A In a stepping motor comprising a permanently magnetized rotor 5 and a wound stator having a pair of pole pieces 3, 4 with part-cylindrical pole faces 3a, 4a, a recess 12a or 12b is provided in at least one of the pole faces 3a, 4a, and a bush 24 is used to locate the pole pieces 3, 4 on a mounting plate 22 so that the pole faces 3a, 4a are coaxial with the rotor 5. In the motor shown, the bush 24 is fixed in an aperture 23 in the plate 22, and supports one of two rotor bearings 20, 21, and as a consequence of the recesses 12a, 12b the rotor 5 can only rotate in one direction if a pulse train such as in Fig. 6 (not shown), is delivered to a stator winding 1. The recesses need not be opposite one another, and may have various other shapes, e.g. as in Figs. 7A-7F (not shown). The motor may be used in electric watches (no details).
FR7517726A 1974-06-25 1975-06-06 LOW DIMENSIONS STEP MOTOR Granted FR2276724A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49072506A JPS511907A (en) 1974-06-25 1974-06-25

Publications (2)

Publication Number Publication Date
FR2276724A1 true FR2276724A1 (en) 1976-01-23
FR2276724B1 FR2276724B1 (en) 1980-04-30

Family

ID=13491286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517726A Granted FR2276724A1 (en) 1974-06-25 1975-06-06 LOW DIMENSIONS STEP MOTOR

Country Status (5)

Country Link
JP (1) JPS511907A (en)
CH (1) CH611766GA3 (en)
DE (1) DE2528159A1 (en)
FR (1) FR2276724A1 (en)
GB (1) GB1463223A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433851A1 (en) * 1974-03-07 1980-03-14 Seiko Instr & Electronics STEP-BY-STEP MICROMOTOR
FR2500968A1 (en) * 1981-03-02 1982-09-03 Inst Chasovoi Promyshlennost Single-phase step micromotor - has ferromagnetic fixing rotor located between stator and double pole rotor providing variable gap
WO1982003928A1 (en) * 1981-04-24 1982-11-11 Mathys Pierre Stepping motor for quartz watch
DE3224501A1 (en) * 1982-07-01 1984-01-05 Vdo Adolf Schindling Ag, 6000 Frankfurt Electrical stepping motor
FR2553533A1 (en) * 1983-10-17 1985-04-19 Pons Amedee Fixing of the rotor of the motor of an electric movement of a watch

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53152111U (en) * 1977-05-09 1978-11-30
DE3107283C2 (en) * 1981-02-26 1984-10-11 Naučno-issledovatel'skij institut časovoj promyšlennosti, Moskau/Moskva Single-phase miniature stepper motor
US4369385A (en) * 1981-03-17 1983-01-18 Malkin Daniel D Single-phase step micromotor
JPH02228242A (en) * 1989-02-28 1990-09-11 Jeco Co Ltd Stepping motor for watch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433851A1 (en) * 1974-03-07 1980-03-14 Seiko Instr & Electronics STEP-BY-STEP MICROMOTOR
FR2500968A1 (en) * 1981-03-02 1982-09-03 Inst Chasovoi Promyshlennost Single-phase step micromotor - has ferromagnetic fixing rotor located between stator and double pole rotor providing variable gap
WO1982003928A1 (en) * 1981-04-24 1982-11-11 Mathys Pierre Stepping motor for quartz watch
DE3224501A1 (en) * 1982-07-01 1984-01-05 Vdo Adolf Schindling Ag, 6000 Frankfurt Electrical stepping motor
FR2553533A1 (en) * 1983-10-17 1985-04-19 Pons Amedee Fixing of the rotor of the motor of an electric movement of a watch

Also Published As

Publication number Publication date
DE2528159A1 (en) 1976-01-15
CH611766GA3 (en) 1979-06-29
FR2276724B1 (en) 1980-04-30
CH611766B (en)
GB1463223A (en) 1977-02-02
JPS511907A (en) 1976-01-09

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