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GB325056A - Field magnet construction for dynamo electric machines - Google Patents

Field magnet construction for dynamo electric machines

Info

Publication number
GB325056A
GB325056A GB3781528A GB3781528A GB325056A GB 325056 A GB325056 A GB 325056A GB 3781528 A GB3781528 A GB 3781528A GB 3781528 A GB3781528 A GB 3781528A GB 325056 A GB325056 A GB 325056A
Authority
GB
United Kingdom
Prior art keywords
laminations
field magnet
arcs
yokes
electric machines
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
GB3781528A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3781528A priority Critical patent/GB325056A/en
Publication of GB325056A publication Critical patent/GB325056A/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

Landscapes

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

Abstract

325,056. Newton, F. Dec. 21, 1928. Cores and yokes. - A field magnet for a dynamo-electric machine is built up of laminations 1 of a material of low reluctance formed with straight edges nearly tangential to the polar arcs and having interpolar yokes 2 bounded by arcs concentric with the polar arcs, together with one or more plates 3 of similar form composed of material of high remanence. The plate 3 may be placed at one end of the laminations or among them, and is preferably of the thickness of several laminations. After assembly the field magnet is submitted to a high magneto-motive force with the magnetic circuit completed by a temporary armature and when this is removed the soft steel or iron laminations serve as a keeper for the permanently magnetized part. Specification 196,048 is referred to. According to the Provisional Specification, the permanent magnet is separated from the laminations by a spacer of non-magnetic material, for example, brass.
GB3781528A 1928-12-21 1928-12-21 Field magnet construction for dynamo electric machines Expired GB325056A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3781528A GB325056A (en) 1928-12-21 1928-12-21 Field magnet construction for dynamo electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3781528A GB325056A (en) 1928-12-21 1928-12-21 Field magnet construction for dynamo electric machines

Publications (1)

Publication Number Publication Date
GB325056A true GB325056A (en) 1930-02-13

Family

ID=10399197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3781528A Expired GB325056A (en) 1928-12-21 1928-12-21 Field magnet construction for dynamo electric machines

Country Status (1)

Country Link
GB (1) GB325056A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816240A (en) * 1956-03-09 1957-12-10 American Mach & Foundry High speed composite electro-magnet and permanent magnet generator
US2990508A (en) * 1956-12-10 1961-06-27 Fidelity Electric Company Inc Synchronous alternator system
US3471730A (en) * 1966-12-30 1969-10-07 Texas Instruments Inc D.c. series motor with laminated field structure of diverse materials
GB2417615A (en) * 2004-08-27 2006-03-01 Delta Electronics Inc Stator structure for a brushless dc motor including permanent magnet stator and rotor poles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816240A (en) * 1956-03-09 1957-12-10 American Mach & Foundry High speed composite electro-magnet and permanent magnet generator
US2990508A (en) * 1956-12-10 1961-06-27 Fidelity Electric Company Inc Synchronous alternator system
US3471730A (en) * 1966-12-30 1969-10-07 Texas Instruments Inc D.c. series motor with laminated field structure of diverse materials
GB2417615A (en) * 2004-08-27 2006-03-01 Delta Electronics Inc Stator structure for a brushless dc motor including permanent magnet stator and rotor poles
GB2417615B (en) * 2004-08-27 2007-01-31 Delta Electronics Inc Stator structures

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