GB876576A - Improvements in or relating to unidirectionally self-starting synchronous motors - Google Patents

Improvements in or relating to unidirectionally self-starting synchronous motors

Info

Publication number
GB876576A
GB876576A GB36485/57A GB3648557A GB876576A GB 876576 A GB876576 A GB 876576A GB 36485/57 A GB36485/57 A GB 36485/57A GB 3648557 A GB3648557 A GB 3648557A GB 876576 A GB876576 A GB 876576A
Authority
GB
United Kingdom
Prior art keywords
poles
main
starting synchronous
nov
surrounded
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
GB36485/57A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB876576A publication Critical patent/GB876576A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Brushless Motors (AREA)

Abstract

876,576. A.C. motors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 22, 1957 [Nov. 26, 1956], No. 36485/67. Class 35. In a unidirectionally self-starting synchronous motor suitable for clocks and time-switches and comprising a permanent magnet, e.g. ferrite rotor, not shown, having alternate poles around its periphery, the stator comprises an annular excitation coil 10 surrounded by a magnetic core formed into two halves each having pole teeth all of the same polarity and so extending inside the coil as to interdigitate with those of the other half, each half having groups of main poles 3, 4 alternating with groups of auxiliary poles 4 ... 6, 12 . . . 14 surrounded by a common short-circuit winding 7 and which produce fluxes phase-shifted from those produced by the main poles. The rotor has 24 poles, and whilst one stator half has 6 main and 6 auxiliary poles 3 ... 6, the other has only 4 main and 6 auxiliary poles 11 ... 14. Specification 642,477 is referred to.
GB36485/57A 1956-11-26 1957-11-22 Improvements in or relating to unidirectionally self-starting synchronous motors Expired GB876576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL876576X 1956-11-26

Publications (1)

Publication Number Publication Date
GB876576A true GB876576A (en) 1961-09-06

Family

ID=19851414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36485/57A Expired GB876576A (en) 1956-11-26 1957-11-22 Improvements in or relating to unidirectionally self-starting synchronous motors

Country Status (3)

Country Link
BE (1) BE562667A (en)
FR (1) FR1200762A (en)
GB (1) GB876576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808491A (en) * 1972-11-15 1974-04-30 Philips Corp Shaded pole synchronous motor
FR2458170A1 (en) * 1979-05-30 1980-12-26 Landis & Gyr Ag PERMANENT MAGNET SYNCHRONOUS MOTOR STARTING IN A DETERMINED SENSE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287199B (en) * 1962-09-21 1969-01-16 Licentia Gmbh Synchronous micro motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808491A (en) * 1972-11-15 1974-04-30 Philips Corp Shaded pole synchronous motor
FR2458170A1 (en) * 1979-05-30 1980-12-26 Landis & Gyr Ag PERMANENT MAGNET SYNCHRONOUS MOTOR STARTING IN A DETERMINED SENSE

Also Published As

Publication number Publication date
FR1200762A (en) 1959-12-24
BE562667A (en) 1960-06-03

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