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GB924347A - A direct-current miniature motor - Google Patents

A direct-current miniature motor

Info

Publication number
GB924347A
GB924347A GB604262A GB604262A GB924347A GB 924347 A GB924347 A GB 924347A GB 604262 A GB604262 A GB 604262A GB 604262 A GB604262 A GB 604262A GB 924347 A GB924347 A GB 924347A
Authority
GB
United Kingdom
Prior art keywords
reluctance
feb
turns
stator
permanent magnet
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
GB604262A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB924347A publication Critical patent/GB924347A/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

Landscapes

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

Abstract

924,347. Cores for electric motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 16, 1962 [Feb. 23, 1961], No. 6042/62. Class 35. The performances of miniature motors are made consistent in spite of manufacturing tolerances by adjusting the reluctance of the permanent magnet stator core. The stator comprises endshields (not shown) joined by longitudinal stays 5 to permanent magnet polepieces 9, 10. The flux return yoke 11 consists of a magnetically soft cylinder which is obliquely gapped either longitudinally or peripherally, so that its physical position determines the reluctance. Alternatively the yoke 11 may consist of turns of magnetic wire round the stator, the number of turns being selected to give the desired reluctance. In addition, an inner soft magnetic sleeve 13 is obliquely cut off at C at one end and may be rotated to vary the pole-face reluctance.
GB604262A 1961-02-23 1962-02-16 A direct-current miniature motor Expired GB924347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL38280A DE1147674B (en) 1961-02-23 1961-02-23 Process for the production of magnetic stands for small direct current motors

Publications (1)

Publication Number Publication Date
GB924347A true GB924347A (en) 1963-04-24

Family

ID=7268226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB604262A Expired GB924347A (en) 1961-02-23 1962-02-16 A direct-current miniature motor

Country Status (6)

Country Link
BE (1) BE614301A (en)
CH (1) CH391070A (en)
DE (1) DE1147674B (en)
FR (1) FR1315526A (en)
GB (1) GB924347A (en)
NL (1) NL275137A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510407A (en) * 1982-06-11 1985-04-09 Hitachi, Ltd. Permanent magnet type motor having improved pole structure
GB2161992A (en) * 1984-07-17 1986-01-22 Rolls Royce & Ass Rotary actuator
EP1879280A1 (en) 2006-07-14 2008-01-16 OpenHydro Group Limited A hydroelectric turbine
US8308422B2 (en) 2006-07-14 2012-11-13 Openhydro Group Limited Submerged hydroelectric turbines having buoyancy chambers
US8596964B2 (en) 2006-07-14 2013-12-03 Openhydro Group Limited Turbines having a debris release chute
US8690526B2 (en) 2008-12-18 2014-04-08 Openhydro Ip Limited Hydroelectric turbine with passive braking
US8754540B2 (en) 2008-02-05 2014-06-17 James Ives Hydroelectric turbine with floating rotor
US8784005B2 (en) 2008-04-17 2014-07-22 Openhydro Group Limited Turbine installation method
US8864439B2 (en) 2006-07-14 2014-10-21 Openhydro Ip Limited Tidal flow hydroelectric turbine
US8872371B2 (en) 2009-04-17 2014-10-28 OpenHydro IP Liminted Enhanced method of controlling the output of a hydroelectric turbine generator
US8933598B2 (en) 2009-09-29 2015-01-13 Openhydro Ip Limited Hydroelectric turbine with coil cooling
US9054512B2 (en) 2008-12-19 2015-06-09 Openhydro Ip Limited Method of installing a hydroelectric turbine generator
US9234492B2 (en) 2010-12-23 2016-01-12 Openhydro Ip Limited Hydroelectric turbine testing method
US9236725B2 (en) 2009-09-29 2016-01-12 Openhydro Ip Limited Hydroelectric turbine cabling system
US9284709B2 (en) 2007-04-11 2016-03-15 Openhydro Group Limited Method of installing a hydroelectric turbine
US9473046B2 (en) 2009-09-29 2016-10-18 Openhydro Ip Limited Electrical power conversion system and method
US9765647B2 (en) 2010-11-09 2017-09-19 Openhydro Ip Limited Hydroelectric turbine recovery system and a method therefor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2834099C2 (en) * 1978-08-03 1987-03-19 Siemens AG, 1000 Berlin und 8000 München Permanently magnetically excited DC micromotor for driving a connectable dental hand instrument
GB8411534D0 (en) * 1984-05-04 1984-06-13 Workman J Electric motors and stators
EP0179963A1 (en) * 1984-10-27 1986-05-07 ROBERT KRUPS STIFTUNG & CO. KG. Electric motor for driving apparatuses, in particular household appliances
JP3638056B2 (en) * 1996-05-21 2005-04-13 株式会社デンソー Fuel pump and manufacturing method thereof
DE19808550C1 (en) * 1998-02-28 1999-07-29 Bosch Gmbh Robert Electric motor, esp. a permanent magnet stimulated electric motor
US6737780B1 (en) * 2003-02-12 2004-05-18 Siemens Vdo Automotive Inc. Electric motor magnetic flux path structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325364C (en) * 1919-06-15 1920-09-13 Siemens & Halske Akt Ges Eddy current gear
CH233027A (en) * 1942-05-16 1944-06-30 Loewe Opta Gmbh Ground core for a coil.
DE1046168B (en) * 1957-04-13 1958-12-11 Deutsche Edelstahlwerke Ag Adjustment device on the brake magnet assembly for disk-shaped runners, in particular for electricity meters
DE1053656B (en) * 1957-10-18 1959-03-26 Licentia Gmbh Multi-track brake magnet system for electricity meters

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510407A (en) * 1982-06-11 1985-04-09 Hitachi, Ltd. Permanent magnet type motor having improved pole structure
GB2161992A (en) * 1984-07-17 1986-01-22 Rolls Royce & Ass Rotary actuator
EP1879280A1 (en) 2006-07-14 2008-01-16 OpenHydro Group Limited A hydroelectric turbine
AU2007271907B2 (en) * 2006-07-14 2010-09-09 Openhydro Group Limited A hydroelectric turbine
US8308422B2 (en) 2006-07-14 2012-11-13 Openhydro Group Limited Submerged hydroelectric turbines having buoyancy chambers
US8466595B2 (en) 2006-07-14 2013-06-18 Openhydro Group Limited Hydroelectric turbine
US8596964B2 (en) 2006-07-14 2013-12-03 Openhydro Group Limited Turbines having a debris release chute
EP1879280B1 (en) * 2006-07-14 2014-03-05 OpenHydro Group Limited A hydroelectric turbine
NO338368B1 (en) * 2006-07-14 2016-08-15 Openhydro Group Ltd Hydroelectric turbine
US8864439B2 (en) 2006-07-14 2014-10-21 Openhydro Ip Limited Tidal flow hydroelectric turbine
US9284709B2 (en) 2007-04-11 2016-03-15 Openhydro Group Limited Method of installing a hydroelectric turbine
US8754540B2 (en) 2008-02-05 2014-06-17 James Ives Hydroelectric turbine with floating rotor
US8784005B2 (en) 2008-04-17 2014-07-22 Openhydro Group Limited Turbine installation method
US8690526B2 (en) 2008-12-18 2014-04-08 Openhydro Ip Limited Hydroelectric turbine with passive braking
US9054512B2 (en) 2008-12-19 2015-06-09 Openhydro Ip Limited Method of installing a hydroelectric turbine generator
US8872371B2 (en) 2009-04-17 2014-10-28 OpenHydro IP Liminted Enhanced method of controlling the output of a hydroelectric turbine generator
US8933598B2 (en) 2009-09-29 2015-01-13 Openhydro Ip Limited Hydroelectric turbine with coil cooling
US9236725B2 (en) 2009-09-29 2016-01-12 Openhydro Ip Limited Hydroelectric turbine cabling system
US9473046B2 (en) 2009-09-29 2016-10-18 Openhydro Ip Limited Electrical power conversion system and method
US9765647B2 (en) 2010-11-09 2017-09-19 Openhydro Ip Limited Hydroelectric turbine recovery system and a method therefor
US9234492B2 (en) 2010-12-23 2016-01-12 Openhydro Ip Limited Hydroelectric turbine testing method

Also Published As

Publication number Publication date
BE614301A (en) 1962-06-18
CH391070A (en) 1965-04-30
FR1315526A (en) 1963-01-18
NL275137A (en) 1964-09-25
DE1147674B (en) 1963-04-25

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