CH680553GA3 - Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied - Google Patents

Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied Download PDF

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Publication number
CH680553GA3
CH680553GA3 CH185590A CH185590A CH680553GA3 CH 680553G A3 CH680553G A3 CH 680553GA3 CH 185590 A CH185590 A CH 185590A CH 185590 A CH185590 A CH 185590A CH 680553G A3 CH680553G A3 CH 680553GA3
Authority
CH
Switzerland
Prior art keywords
pole pieces
clock
current
stepping motor
good starting
Prior art date
Application number
CH185590A
Other languages
French (fr)
Other versions
CH680553B5 (en
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 filed Critical
Priority to CH185590A priority Critical patent/CH680553GA3/en
Publication of CH680553GA3 publication Critical patent/CH680553GA3/en
Publication of CH680553B5 publication Critical patent/CH680553B5/fr

Links

Classifications

    • 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
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • 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
    • H02K37/125—Magnet axially facing 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)

Abstract

The motor includes a rotor in the form of a disc turning in a first plane. A stator is formed by pole pieces (1, 2) arranged in a second plane. In addition there is a magnetic core (3) and a winding (4) formed around the core. The rotor has a number of poles which is equal to a sub-multiple of the number of steps to be made in one turn of the motor. The distribution of the normal rotor induction is such that there is a fundamental pattern with 2p poles and a clear 3rd order harmonic comprising 60 poles. ADVANTAGE - Motor has good starting characteristics.
CH185590A 1990-06-01 1990-06-01 Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied CH680553GA3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH185590A CH680553GA3 (en) 1990-06-01 1990-06-01 Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH185590A CH680553GA3 (en) 1990-06-01 1990-06-01 Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied

Publications (2)

Publication Number Publication Date
CH680553GA3 true CH680553GA3 (en) 1992-09-30
CH680553B5 CH680553B5 (en) 1993-03-31

Family

ID=4220185

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185590A CH680553GA3 (en) 1990-06-01 1990-06-01 Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied

Country Status (1)

Country Link
CH (1) CH680553GA3 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498905A (en) * 1978-01-20 1979-08-04 Matsushita Electric Ind Co Ltd Motor with frequency generator
GB2062367A (en) * 1979-04-12 1981-05-20 Portescap Stepping polyphased motor for a clockwork mechanism
JPH01185156A (en) * 1988-01-12 1989-07-24 Canon Inc stepper motor
EP0356396A1 (en) * 1988-08-25 1990-02-28 Scholer AG Multipolar step motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498905A (en) * 1978-01-20 1979-08-04 Matsushita Electric Ind Co Ltd Motor with frequency generator
GB2062367A (en) * 1979-04-12 1981-05-20 Portescap Stepping polyphased motor for a clockwork mechanism
JPH01185156A (en) * 1988-01-12 1989-07-24 Canon Inc stepper motor
EP0356396A1 (en) * 1988-08-25 1990-02-28 Scholer AG Multipolar step motor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 470 (E-835)(3818) 24 octobre 1989, & JP-A-1 185156 (CANON) 24 juillet 1989, *
PATENT ABSTRACTS OF JAPAN vol. 3, no. 121 (E-143)(99) 11 octobre 1979, & JP-A-54 98905 (MATSUSHITA) 04 août 1979, *

Also Published As

Publication number Publication date
CH680553B5 (en) 1993-03-31

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