CH685527GA3 - Multipolar stepper motor e.g. for clock movement - Google Patents

Multipolar stepper motor e.g. for clock movement

Info

Publication number
CH685527GA3
CH685527GA3 CH431/93A CH43193A CH685527GA3 CH 685527G A3 CH685527G A3 CH 685527GA3 CH 431/93 A CH431/93 A CH 431/93A CH 43193 A CH43193 A CH 43193A CH 685527G A3 CH685527G A3 CH 685527GA3
Authority
CH
Switzerland
Prior art keywords
stepper motor
multipolar
clock movement
stator
polar
Prior art date
Application number
CH431/93A
Other languages
French (fr)
Other versions
CH685527B5 (en
Inventor
Mai Xuan Tu
Michel Schwab
Original Assignee
Detra S A Fabrique D Ebauches
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 Detra S A Fabrique D Ebauches filed Critical Detra S A Fabrique D Ebauches
Priority to CH43193A priority Critical patent/CH685527B5/en
Publication of CH685527GA3 publication Critical patent/CH685527GA3/en
Publication of CH685527B5 publication Critical patent/CH685527B5/en

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
    • 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
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • 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
    • 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)
  • Linear Motors (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The stepper motor has a permanent magnet rotor comprising a thin disc having N pairs of magnetic poles, and a magnetic stator circuit. The stator includes a coil winding around a ferromagnetic core, and two polar pieces each magnetically connected to one of the ends of the winding. Each polar piece has three toothed zones which are distributed around a central axis, with the end zones of each stator part overlapping each other.
CH43193A 1993-02-12 1993-02-12 Stepper no multipolar. CH685527B5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH43193A CH685527B5 (en) 1993-02-12 1993-02-12 Stepper no multipolar.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH43193A CH685527B5 (en) 1993-02-12 1993-02-12 Stepper no multipolar.

Publications (2)

Publication Number Publication Date
CH685527GA3 true CH685527GA3 (en) 1995-08-15
CH685527B5 CH685527B5 (en) 1996-02-15

Family

ID=4186871

Family Applications (1)

Application Number Title Priority Date Filing Date
CH43193A CH685527B5 (en) 1993-02-12 1993-02-12 Stepper no multipolar.

Country Status (1)

Country Link
CH (1) CH685527B5 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296691A1 (en) * 1987-06-26 1988-12-28 Kinetron B.V. Electro-mechanical timepiece with stepper motor
EP0356396A1 (en) * 1988-08-25 1990-02-28 Scholer AG Multipolar step motor
EP0452252A1 (en) * 1990-04-11 1991-10-16 Silcon Enterprises Ltd. Step motor for a time piece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296691A1 (en) * 1987-06-26 1988-12-28 Kinetron B.V. Electro-mechanical timepiece with stepper motor
EP0356396A1 (en) * 1988-08-25 1990-02-28 Scholer AG Multipolar step motor
EP0452252A1 (en) * 1990-04-11 1991-10-16 Silcon Enterprises Ltd. Step motor for a time piece

Also Published As

Publication number Publication date
CH685527B5 (en) 1996-02-15

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Legal Events

Date Code Title Description
NV New agent

Representative=s name: DETRA S.A.

PL Patent ceased