CH662035GA3 - Monophase stepper motor with rotor with diametral magnetisation - Google Patents

Monophase stepper motor with rotor with diametral magnetisation Download PDF

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Publication number
CH662035GA3
CH662035GA3 CH318785A CH318785A CH662035GA3 CH 662035G A3 CH662035G A3 CH 662035GA3 CH 318785 A CH318785 A CH 318785A CH 318785 A CH318785 A CH 318785A CH 662035G A3 CH662035G A3 CH 662035GA3
Authority
CH
Switzerland
Prior art keywords
rotor
magnetisation
diametral
bore hole
radial axes
Prior art date
Application number
CH318785A
Other languages
French (fr)
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 CH318785A priority Critical patent/CH662035GA3/en
Publication of CH662035GA3 publication Critical patent/CH662035GA3/en

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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
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The rotor (1) with diametral magnetisation is engaged in the concentric bore hole (2), circular over the major part of its perimeter, of a stator (3) having two poles (4), each of the latter being connected to one end of a coiled core (5). The stator has two narrowed zones (6) placed symmetrically on either side of the axis (7) of the magnetic field of the coil in the bore hole. The bore hole has two notches (8) situated on radial axes (9). The radial axes (9) make an included angle differing substantially from 180 DEG . The notches (8) are of asymmetric shape with respect to the radial axes. The motor thus described makes it possible to increase the insensitivity to manufacturing tolerances, to improve the wheelwork meshing conditions and to reduce the angular offset of the rotor under a type of load. <IMAGE>
CH318785A 1985-07-23 1985-07-23 Monophase stepper motor with rotor with diametral magnetisation CH662035GA3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH318785A CH662035GA3 (en) 1985-07-23 1985-07-23 Monophase stepper motor with rotor with diametral magnetisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH318785A CH662035GA3 (en) 1985-07-23 1985-07-23 Monophase stepper motor with rotor with diametral magnetisation

Publications (1)

Publication Number Publication Date
CH662035GA3 true CH662035GA3 (en) 1987-09-15

Family

ID=4250518

Family Applications (1)

Application Number Title Priority Date Filing Date
CH318785A CH662035GA3 (en) 1985-07-23 1985-07-23 Monophase stepper motor with rotor with diametral magnetisation

Country Status (1)

Country Link
CH (1) CH662035GA3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1020315A (en) * 1950-04-13 1953-02-04 Telefonbau & Normalzeit Gmbh Electromagnetic secondary clock
DE1163956B (en) * 1959-09-18 1964-02-27 Solari & C Spa Stepper motor, especially for display devices
DE2736431A1 (en) * 1977-06-02 1978-12-14 Fontainemelon Horlogerie Electromagnetic motor with asymmetrical air gap flux - has asymmetry produced by areas of differing reluctance in pole shoe iron
GB2071429A (en) * 1980-02-06 1981-09-16 Asulab Sa Electromagnetic motor
US4398107A (en) * 1974-03-07 1983-08-09 Kabushiki Kaisha Daini Seikosha Micro stepping motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1020315A (en) * 1950-04-13 1953-02-04 Telefonbau & Normalzeit Gmbh Electromagnetic secondary clock
DE1163956B (en) * 1959-09-18 1964-02-27 Solari & C Spa Stepper motor, especially for display devices
US4398107A (en) * 1974-03-07 1983-08-09 Kabushiki Kaisha Daini Seikosha Micro stepping motor
DE2736431A1 (en) * 1977-06-02 1978-12-14 Fontainemelon Horlogerie Electromagnetic motor with asymmetrical air gap flux - has asymmetry produced by areas of differing reluctance in pole shoe iron
GB2071429A (en) * 1980-02-06 1981-09-16 Asulab Sa Electromagnetic motor

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