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GB989228A - Improvements in electrical rotating machines - Google Patents

Improvements in electrical rotating machines

Info

Publication number
GB989228A
GB989228A GB2830461A GB2830461A GB989228A GB 989228 A GB989228 A GB 989228A GB 2830461 A GB2830461 A GB 2830461A GB 2830461 A GB2830461 A GB 2830461A GB 989228 A GB989228 A GB 989228A
Authority
GB
United Kingdom
Prior art keywords
air
gap
ring
shoes
winding
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
GB2830461A
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.)
Societe dElectronique et dAutomatisme SA
Original Assignee
Societe dElectronique et dAutomatisme SA
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 Societe dElectronique et dAutomatisme SA filed Critical Societe dElectronique et dAutomatisme SA
Publication of GB989228A publication Critical patent/GB989228A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/54—Disc armature motors or generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Dc Machiner (AREA)

Abstract

989,228. Dynamo-electric machines having planar airgaps and printed windings. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 3, 1961 [Aug. 3, 1960], No. 28304/61. Heading H2A. In an electrical rotating machine, e.g. D.C. motor, of the flat annular air-gap type having a stator member carrying a ring 5 of permanent magnet poles, and a discoidal rotor member 1 carrying a printed circuit winding having active portions 11 extended at each end by either inclined or curved inactive portions 12, 13, the magnetic flux in the air-gap is increased by giving the ring 5 a greater radial extent than that of the winding active portions and providing the poles with shoes 7 protruding into the air-gap to form one boundary surface thereof, the radial extent of the shoes at such surface equalling that of the winding active portions. In the embodiment shown, the ring 5 is an axially magnetized integral ring of coercive material to the air-gap face of which the magnetically soft shoes 7 are applied, but in another embodiment, not shown, the ring comprises an assembly of alternate sector-shaped pole shoes and circumferentially magnetized magnets. The air-gap faces of the pole shoes may be shaped to correspond with that of the winding active portion, and the stator is completed by yokes 4, 6, mounting plates 8, 10, and brushes 9. Suitable winding and core dimensions are described. Specifications 874,394, 902,295, 931,654 and 948,923 are referred to.
GB2830461A 1960-08-03 1961-08-03 Improvements in electrical rotating machines Expired GB989228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR835050A FR1272082A (en) 1960-08-03 1960-08-03 Improvements made to rotating electrical machines with axial airgap and lamellar windings

Publications (1)

Publication Number Publication Date
GB989228A true GB989228A (en) 1965-04-14

Family

ID=8736935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2830461A Expired GB989228A (en) 1960-08-03 1961-08-03 Improvements in electrical rotating machines

Country Status (3)

Country Link
CH (1) CH371834A (en)
FR (1) FR1272082A (en)
GB (1) GB989228A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213653A (en) * 1987-12-14 1989-08-16 Johnson Electric Ind Mfg A permanent magnet D.C. motor with flux concentrator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213653A (en) * 1987-12-14 1989-08-16 Johnson Electric Ind Mfg A permanent magnet D.C. motor with flux concentrator

Also Published As

Publication number Publication date
CH371834A (en) 1963-09-15
FR1272082A (en) 1961-09-22

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