YU217983A - Step motor for electronic clocks - Google Patents

Step motor for electronic clocks

Info

Publication number
YU217983A
YU217983A YU02179/83A YU217983A YU217983A YU 217983 A YU217983 A YU 217983A YU 02179/83 A YU02179/83 A YU 02179/83A YU 217983 A YU217983 A YU 217983A YU 217983 A YU217983 A YU 217983A
Authority
YU
Yugoslavia
Prior art keywords
rotor
recesses
stator
axis
thickness
Prior art date
Application number
YU02179/83A
Inventor
J Vecer
Original Assignee
Tesla Kp
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 Tesla Kp filed Critical Tesla Kp
Publication of YU217983A publication Critical patent/YU217983A/en

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 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Control Of Stepping Motors (AREA)
  • Adornments (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Gyroscopes (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

The stepping motor for electronic clocks according to the invention supplies a higher load torque with a lower power consumption at the same time, and makes it possible to use cheaper permanent-magnet materials, primarily ferrite, for the rotor. The pole pieces of the stator laminates 1a, 1b are designed to be non-concentric with respect to the rotor 2 and have diametrically opposite recesses 11b whose height corresponds either to the thickness of a stator laminate layer 1c, 1d, at least two laminate layers being provided, or whose height is less than the thickness of the stator laminates, and only a single laminate layer need be provided. The recesses 11d are bounded by two straight lines X' and X'', the straight line X'' running through the rotor axis dividing the air gap 4 into two halves and enclosing an angle beta , which is greater than 15 DEG , with the Z-Z' axis. The straight line X' encloses an angle alpha of less than 130 DEG with the Z-Z' axis. Stator laminates without and with both types of recesses may be of different thickness. The invention can be used in all types of crystal-controlled electronic clocks having an analogue time display. <IMAGE>
YU02179/83A 1982-11-04 1983-11-01 Step motor for electronic clocks YU217983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS827875A CS232378B1 (en) 1982-11-04 1982-11-04 Stepping electric motor for electronic watch

Publications (1)

Publication Number Publication Date
YU217983A true YU217983A (en) 1985-12-31

Family

ID=5428637

Family Applications (1)

Application Number Title Priority Date Filing Date
YU02179/83A YU217983A (en) 1982-11-04 1983-11-01 Step motor for electronic clocks

Country Status (9)

Country Link
JP (1) JPS59106869A (en)
CH (1) CH656506GA3 (en)
CS (1) CS232378B1 (en)
DD (1) DD243412A3 (en)
DE (1) DE3339807A1 (en)
HU (1) HU191891B (en)
IN (1) IN159686B (en)
PL (1) PL244402A2 (en)
YU (1) YU217983A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9201423U1 (en) * 1992-02-03 1992-04-16 Berliner TT-Bahnen, O-1055 Berlin Actuator for models
JP3597467B2 (en) * 1998-06-11 2004-12-08 シチズン時計株式会社 2-pole step motor for watches

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2263632B1 (en) * 1974-03-07 1980-08-14 Seiko Instr & Electronics
DE2747209A1 (en) * 1976-12-10 1978-06-15 Niles Parts Co Ltd STEPPER MOTOR FOR AN ELECTRONIC WATCH
US4162418A (en) * 1976-12-14 1979-07-24 Niles Parts Co., Ltd. Stepping motor for electronic clock
JPS53107611A (en) * 1977-03-01 1978-09-19 Seiko Epson Corp Step motor

Also Published As

Publication number Publication date
DD243412A3 (en) 1987-03-04
DE3339807A1 (en) 1984-05-10
JPS59106869A (en) 1984-06-20
HU191891B (en) 1987-04-28
PL244402A2 (en) 1984-05-21
CS787582A1 (en) 1984-06-18
CH656506GA3 (en) 1986-07-15
CS232378B1 (en) 1985-01-16
IN159686B (en) 1987-05-30

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