GB888462A - Improvements relating to step-by-step motors - Google Patents

Improvements relating to step-by-step motors

Info

Publication number
GB888462A
GB888462A GB1147157A GB1147157A GB888462A GB 888462 A GB888462 A GB 888462A GB 1147157 A GB1147157 A GB 1147157A GB 1147157 A GB1147157 A GB 1147157A GB 888462 A GB888462 A GB 888462A
Authority
GB
United Kingdom
Prior art keywords
poles
housing
april
projecting
ring
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.)
Expired
Application number
GB1147157A
Inventor
Geoffrey Ross
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB1147157A priority Critical patent/GB888462A/en
Publication of GB888462A publication Critical patent/GB888462A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)

Abstract

888,462. Electric motors. FERRANTI Ltd. April 8, 1958 [April 9, 1957], No. 11471/57. Class 35. In a step-by-step motor having interdigitated rotor poles excited by a permanent magnet, alternate stator poles c are shaded by means of a laminated copper shading-ring d, the unshaded poles h projecting from a disc e,f lying under the shading-ring and being a press-fit in the magnetic housing a. The stator is completed by a second dish-shaped housing (not shown) interfitting with housing a and having similar poles projecting in the opposite direction. The poles may be radially instead of cylindrically arranged, and may be irregularly spaced.
GB1147157A 1957-04-09 1957-04-09 Improvements relating to step-by-step motors Expired GB888462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1147157A GB888462A (en) 1957-04-09 1957-04-09 Improvements relating to step-by-step motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1147157A GB888462A (en) 1957-04-09 1957-04-09 Improvements relating to step-by-step motors

Publications (1)

Publication Number Publication Date
GB888462A true GB888462A (en) 1962-01-31

Family

ID=9986874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1147157A Expired GB888462A (en) 1957-04-09 1957-04-09 Improvements relating to step-by-step motors

Country Status (1)

Country Link
GB (1) GB888462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416619A1 (en) * 2001-07-09 2004-05-06 Harmonic Drive Systems Inc. Hybrid synchronous electric machine
CN109802542A (en) * 2019-01-08 2019-05-24 南京一体科技有限公司 A kind of outer rotor desk permanent-magnet switched reluctance motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416619A1 (en) * 2001-07-09 2004-05-06 Harmonic Drive Systems Inc. Hybrid synchronous electric machine
EP1416619A4 (en) * 2001-07-09 2008-02-27 Harmonic Drive Systems Hybrid synchronous electric machine
EP2061140A3 (en) * 2001-07-09 2011-08-10 Harmonic Drive Systems Inc. Synchronous hybrid electric machine
CN109802542A (en) * 2019-01-08 2019-05-24 南京一体科技有限公司 A kind of outer rotor desk permanent-magnet switched reluctance motor

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