FR2316783A1 - Single phase or multiphase AC bicycle dynamo - has controlled excitation using split rotor whose parts function in unison with common stator poles - Google Patents

Single phase or multiphase AC bicycle dynamo - has controlled excitation using split rotor whose parts function in unison with common stator poles

Info

Publication number
FR2316783A1
FR2316783A1 FR7620353A FR7620353A FR2316783A1 FR 2316783 A1 FR2316783 A1 FR 2316783A1 FR 7620353 A FR7620353 A FR 7620353A FR 7620353 A FR7620353 A FR 7620353A FR 2316783 A1 FR2316783 A1 FR 2316783A1
Authority
FR
France
Prior art keywords
unison
stator poles
multiphase
single phase
rotor
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.)
Withdrawn
Application number
FR7620353A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2316783A1 publication Critical patent/FR2316783A1/en
Withdrawn legal-status Critical Current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
    • H02K21/021—Means for mechanical adjustment of the excitation flux
    • H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
    • H02K21/029—Vectorial combination of the fluxes generated by a plurality of field sections or of the voltages induced in a plurality of armature sections
    • 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
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular 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
    • H02K21/12—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A generator produces single-phase or multi-phase AC. It has a permanent magnet rotor that has "p" pole-pairs and is divided axially into at least two parts that work in unison with the same stator poles. The generator may be used as a bicycle dynamo. To overcome the difficulty in providing regulated excitation, so as to avoid excess voltages when the totor speed is sharply increased, one of the rotor parts is connected in locked-rotation relationship with the rotor shaft. The other part of the rotor is arranged on the rotor shaft such that the part can be rotatably displaced by a maximum of two pole divisions.
FR7620353A 1975-07-04 1976-07-02 Single phase or multiphase AC bicycle dynamo - has controlled excitation using split rotor whose parts function in unison with common stator poles Withdrawn FR2316783A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752529874 DE2529874A1 (en) 1975-07-04 1975-07-04 GENERATOR FOR SINGLE- OR MULTI-PHASE AC VOLTAGE WITH PERMANENT MAGNETIC RUNNER

Publications (1)

Publication Number Publication Date
FR2316783A1 true FR2316783A1 (en) 1977-01-28

Family

ID=5950660

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7620353A Withdrawn FR2316783A1 (en) 1975-07-04 1976-07-02 Single phase or multiphase AC bicycle dynamo - has controlled excitation using split rotor whose parts function in unison with common stator poles

Country Status (7)

Country Link
JP (1) JPS526912A (en)
BR (1) BR7604354A (en)
DE (1) DE2529874A1 (en)
ES (1) ES449495A1 (en)
FR (1) FR2316783A1 (en)
IT (1) IT1066328B (en)
SE (1) SE7607486L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936785A3 (en) * 2006-12-06 2008-07-02 Hamilton Sundstrand Corporation Self-regulating permanent magnet device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102170211B (en) * 2011-04-22 2012-11-21 徐州工业职业技术学院 Variable excitation permanent magnet synchronous motor
DE102023102214A1 (en) 2023-01-31 2024-08-01 Schaeffler Technologies AG & Co. KG Electric machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936785A3 (en) * 2006-12-06 2008-07-02 Hamilton Sundstrand Corporation Self-regulating permanent magnet device
US7642683B2 (en) 2006-12-06 2010-01-05 Hamilton Sundstrand Corporation Self-regulating permanent magnet device

Also Published As

Publication number Publication date
IT1066328B (en) 1985-03-04
ES449495A1 (en) 1977-07-16
SE7607486L (en) 1977-01-05
DE2529874A1 (en) 1977-01-20
JPS526912A (en) 1977-01-19
BR7604354A (en) 1977-07-26

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Legal Events

Date Code Title Description
ST Notification of lapse