GB2007035A - Supporting rotor bearings in a single-phase stepping motor - Google Patents

Supporting rotor bearings in a single-phase stepping motor

Info

Publication number
GB2007035A
GB2007035A GB7840221A GB7840221A GB2007035A GB 2007035 A GB2007035 A GB 2007035A GB 7840221 A GB7840221 A GB 7840221A GB 7840221 A GB7840221 A GB 7840221A GB 2007035 A GB2007035 A GB 2007035A
Authority
GB
United Kingdom
Prior art keywords
rotor
stator
stepping motor
phase stepping
pole faces
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
GB7840221A
Other versions
GB2007035B (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.)
Quarz Zeit AG
Original Assignee
Quarz Zeit AG
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 Quarz Zeit AG filed Critical Quarz Zeit AG
Publication of GB2007035A publication Critical patent/GB2007035A/en
Application granted granted Critical
Publication of GB2007035B publication Critical patent/GB2007035B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1675—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at only one end of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Electromechanical Clocks (AREA)

Abstract

In a single-phase stepping motor for use in clocks having a rotor 1 with a flat, multi-pole, disc-like body rotating in a first plane, and a stator 2 comprising two stator elements 3, 4 connected with each other by a bridge element 5 carrying the energizing winding 6, lying in a second plane parallel to the first plane, a bearing 8a for the rotor shaft 9 is formed on at least one of the pole faces 7 to ensure accurate concentricity of the rotor 1 with the stator 2. A further bearing is housed in a leaning pedestal (not shown). Each of the two stator elements 3, 4 merges into a number of pole faces 7 directed towards the end face of the rotor 1 and the number of stator pole faces 7 is smaller than the number of rotor poles 10. In another embodiment the second bearing bush is housed in a soft-magnetic plate which also acts to screen extraneous fields. <IMAGE>
GB7840221A 1977-10-24 1978-10-12 Single-phase stepping motor Expired GB2007035B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772747644 DE2747644A1 (en) 1977-10-24 1977-10-24 SINGLE PHASE MOTOR, IN PARTICULAR FOR WATCHES

Publications (2)

Publication Number Publication Date
GB2007035A true GB2007035A (en) 1979-05-10
GB2007035B GB2007035B (en) 1982-03-31

Family

ID=6022113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7840221A Expired GB2007035B (en) 1977-10-24 1978-10-12 Single-phase stepping motor

Country Status (11)

Country Link
JP (1) JPS5466414A (en)
AR (1) AR226998A1 (en)
AU (1) AU524967B2 (en)
BR (1) BR7806885A (en)
CH (1) CH622162GA3 (en)
DE (1) DE2747644A1 (en)
ES (1) ES474037A1 (en)
FR (1) FR2406907A1 (en)
GB (1) GB2007035B (en)
MX (1) MX144499A (en)
ZA (1) ZA785652B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5051633A (en) * 1988-08-25 1991-09-24 Matthias Scholer Multipolar stepping motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149943C2 (en) * 1981-12-17 1986-02-06 Vdo Adolf Schindling Ag, 6000 Frankfurt Two-phase stepper motor
DE69401665T2 (en) * 1994-12-12 1997-07-31 Detra Sa Multi-phase multi-pole cutting motor
US8278803B2 (en) * 2009-08-14 2012-10-02 Lin Engineering Motor end cap positioning element for maintaining rotor-stator concentricity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5051633A (en) * 1988-08-25 1991-09-24 Matthias Scholer Multipolar stepping motor

Also Published As

Publication number Publication date
ES474037A1 (en) 1979-05-01
JPS5466414A (en) 1979-05-29
FR2406907B3 (en) 1981-05-22
AU524967B2 (en) 1982-10-14
CH622162GA3 (en) 1981-03-31
GB2007035B (en) 1982-03-31
DE2747644A1 (en) 1979-05-03
AU4078278A (en) 1980-04-24
AR226998A1 (en) 1982-09-15
FR2406907A1 (en) 1979-05-18
BR7806885A (en) 1979-05-15
MX144499A (en) 1981-10-20
ZA785652B (en) 1979-10-31

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Legal Events

Date Code Title Description
PG Patent granted