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GB1119492A - Improvements in and relating to synchronous electric motors - Google Patents

Improvements in and relating to synchronous electric motors

Info

Publication number
GB1119492A
GB1119492A GB2936765A GB2936765A GB1119492A GB 1119492 A GB1119492 A GB 1119492A GB 2936765 A GB2936765 A GB 2936765A GB 2936765 A GB2936765 A GB 2936765A GB 1119492 A GB1119492 A GB 1119492A
Authority
GB
United Kingdom
Prior art keywords
rotor
degrees
parts
synchronous electric
field
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
GB2936765A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1119492A publication Critical patent/GB1119492A/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
    • H02K21/02—Details
    • 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
    • H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores

Landscapes

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

Abstract

1,119,492. A.C. motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 July, 1965 [15 July, 1964], No. 29367/65. Heading H2A. In a synchronous electric motor, having a stator 1 energized by a coil and a permanent magnet rotor 2, the rotor is axially divided into at least two parts 3, 4 each having North and South poles and the angle subtended between like poles of adjacent parts is 90 degrees. Selfstarting may be provided by arranging the resultant magnetic field of the rotor in the rest position to be at least 5 degrees, preferably 90 degrees to the direction of the stator field. As shown this is obtained by auxiliary magnets 5, 6 connected to axial projections on the rotor. In an alternative arrangement (Fig. 2, not shown), the rotor consists of three parts, the outer two (12, 14) having, a magnetic field at 90 degrees to the field of the central part (13). An auxiliary magnet (15) is attached to the rotor and an iron yoke (18) surrounds the auxiliary magnet (15) so as to provide the starting arrangement.
GB2936765A 1964-07-15 1965-07-12 Improvements in and relating to synchronous electric motors Expired GB1119492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN0025256 1964-07-15

Publications (1)

Publication Number Publication Date
GB1119492A true GB1119492A (en) 1968-07-10

Family

ID=7343357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2936765A Expired GB1119492A (en) 1964-07-15 1965-07-12 Improvements in and relating to synchronous electric motors

Country Status (9)

Country Link
JP (1) JPS503481B1 (en)
AT (1) AT256972B (en)
BE (1) BE666835A (en)
CH (1) CH442504A (en)
DE (1) DE1488267B2 (en)
ES (1) ES315294A1 (en)
GB (1) GB1119492A (en)
NL (1) NL6508997A (en)
SE (1) SE310907B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087845A (en) * 1990-02-16 1992-02-11 Festo Kg Series electric motor with permanent magnet brake

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503649A (en) * 1973-05-14 1975-01-16
JPS5027910A (en) * 1973-06-27 1975-03-22
JPS5656162A (en) * 1979-10-09 1981-05-18 Matsushita Electric Ind Co Ltd Dc rotary motor
AT377871B (en) * 1982-09-07 1985-05-10 Philips Nv ELECTRICALLY DRIVEN DEVICE
DE3403041C1 (en) * 1984-01-30 1985-08-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Single-phase synchronous motor with a two-pole permanent magnetic rotor
US5097162A (en) * 1989-09-26 1992-03-17 North American Philips Corporation Variable angle stepper motor with spring magnet
DE4427337A1 (en) * 1994-08-02 1996-02-08 Ako Werke Gmbh & Co Single-phase sync motor e.g. domestic washing machine, dryer of dish washer
DE102009005430A1 (en) * 2009-01-19 2010-07-22 Wilo Se Single-phase synchronous motor with auxiliary magnet
CN114421656B (en) * 2021-12-31 2023-09-29 歌尔股份有限公司 Rotating device, force feedback device and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087845A (en) * 1990-02-16 1992-02-11 Festo Kg Series electric motor with permanent magnet brake

Also Published As

Publication number Publication date
NL6508997A (en) 1966-01-17
ES315294A1 (en) 1966-02-01
SE310907B (en) 1969-05-19
BE666835A (en)
AT256972B (en) 1967-09-11
CH442504A (en) 1967-08-31
DE1488267A1 (en) 1968-12-12
JPS503481B1 (en) 1975-02-05
DE1488267B2 (en) 1974-07-18

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