GB456206A - Improvements in and relating to permanent magnet dynamo electric machines - Google Patents

Improvements in and relating to permanent magnet dynamo electric machines

Info

Publication number
GB456206A
GB456206A GB3809/36A GB380936A GB456206A GB 456206 A GB456206 A GB 456206A GB 3809/36 A GB3809/36 A GB 3809/36A GB 380936 A GB380936 A GB 380936A GB 456206 A GB456206 A GB 456206A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
electric machines
feb
relating
self
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
GB3809/36A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB456206A publication Critical patent/GB456206A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/278—Surface mounted magnets; Inset magnets
    • 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
    • H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H02K21/042—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

456,206. Magnets; magneto-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 7, 1936, No. 3809. Convention date, Feb. 7, 1935. [Class 35] A rotary permanent magnet is formed by casting metal symmetrically about a tube of metal which can easily be machined. In the form shown, alloy is cast about a tube 14 and has salient polepieces 11 of shorter axial length. Damping windings may be provided on the poles to reduce the tendency to become de-magnetized. The stator 16 is provided with a distributed winding. Such a machine may be used as a generator or as a non-self-starting motor. The magnet may be enclosed in annular laminµ and used in conjunction with a shaded bi-polar stator as a self-starting synchronous motor. Specifications 385,470 ; 423,987 and 424,746, [both in Group II], are referred to.
GB3809/36A 1935-02-07 1936-02-07 Improvements in and relating to permanent magnet dynamo electric machines Expired GB456206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US456206XA 1935-02-07 1935-02-07

Publications (1)

Publication Number Publication Date
GB456206A true GB456206A (en) 1936-11-04

Family

ID=21938964

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3809/36A Expired GB456206A (en) 1935-02-07 1936-02-07 Improvements in and relating to permanent magnet dynamo electric machines

Country Status (1)

Country Link
GB (1) GB456206A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749590C (en) * 1939-02-11 1944-11-27 Runner of synchronous machines, especially those seated on the same shaft as main machines
EP1653587A2 (en) * 2004-10-29 2006-05-03 Hitachi, Ltd. Rotating electrical machine and manufacturing method thereof
JP2006158174A (en) * 2004-10-29 2006-06-15 Hitachi Ltd Rotary electric machine and manufacturing method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749590C (en) * 1939-02-11 1944-11-27 Runner of synchronous machines, especially those seated on the same shaft as main machines
EP1653587A2 (en) * 2004-10-29 2006-05-03 Hitachi, Ltd. Rotating electrical machine and manufacturing method thereof
JP2006158174A (en) * 2004-10-29 2006-06-15 Hitachi Ltd Rotary electric machine and manufacturing method thereof
EP1653587A3 (en) * 2004-10-29 2007-08-08 Hitachi, Ltd. Rotating electrical machine and manufacturing method thereof
US7557483B2 (en) 2004-10-29 2009-07-07 Hitachi, Ltd. Rotating electrical machine and manufacturing method thereof
JP4522901B2 (en) * 2004-10-29 2010-08-11 日立オートモティブシステムズ株式会社 Rotating electric machine and manufacturing method thereof

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