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FR2443760A1 - Brushless dynamo for motor vehicle - has combined excitation field produced by excitation winding and permanent magnet - Google Patents

Brushless dynamo for motor vehicle - has combined excitation field produced by excitation winding and permanent magnet

Info

Publication number
FR2443760A1
FR2443760A1 FR7930167A FR7930167A FR2443760A1 FR 2443760 A1 FR2443760 A1 FR 2443760A1 FR 7930167 A FR7930167 A FR 7930167A FR 7930167 A FR7930167 A FR 7930167A FR 2443760 A1 FR2443760 A1 FR 2443760A1
Authority
FR
France
Prior art keywords
permanent magnet
excitation
excitation winding
magnetic
motor vehicle
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.)
Granted
Application number
FR7930167A
Other languages
French (fr)
Other versions
FR2443760B3 (en
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of FR2443760A1 publication Critical patent/FR2443760A1/en
Application granted granted Critical
Publication of FR2443760B3 publication Critical patent/FR2443760B3/fr
Granted 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
    • H02K21/04—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
    • H02K21/044—Rotor of the claw pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
    • H02K19/24—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators with variable-reluctance soft-iron rotors without winding
    • 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)

Abstract

The brushless dynamo has its magnetic excitation circuit in combination with the corresponding excitation winding provided with a permanent magnet in order to produce a hybrid excitation system. The magnetic flux generated by the excitation winding (20) cooperates with the magnetic flux (F3) from the permanent magnet forming part of a ring of magnetic material so that the permanent magnet is connected to the magnetic circuit of the rotor. The excitation winding is held by a hollow drum (28) open at one end and partly enclosing the rotor so that an air gap is formed between the two. The advantage lies in the constant magnetic properties of the excitation circuit and little maintenance.
FR7930167A 1978-12-06 1979-12-04 Brushless dynamo for motor vehicle - has combined excitation field produced by excitation winding and permanent magnet Granted FR2443760A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30591/78A IT1101391B (en) 1978-12-06 1978-12-06 ALTERNATOR WITHOUT BRUSHES, PARTICULARLY FOR VEHICLES

Publications (2)

Publication Number Publication Date
FR2443760A1 true FR2443760A1 (en) 1980-07-04
FR2443760B3 FR2443760B3 (en) 1981-10-02

Family

ID=11230016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930167A Granted FR2443760A1 (en) 1978-12-06 1979-12-04 Brushless dynamo for motor vehicle - has combined excitation field produced by excitation winding and permanent magnet

Country Status (3)

Country Link
DE (1) DE2948980A1 (en)
FR (1) FR2443760A1 (en)
IT (1) IT1101391B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58903360D1 (en) * 1989-04-27 1993-03-04 Siemens Ag SYNCHRONOUS MACHINE.
DE29921874U1 (en) * 1999-12-13 2000-04-13 Müller, Michael, 51377 Leverkusen Electromagnetic machine for a vehicle, especially a bicycle

Also Published As

Publication number Publication date
FR2443760B3 (en) 1981-10-02
IT1101391B (en) 1985-09-28
DE2948980A1 (en) 1980-06-26
IT7830591A0 (en) 1978-12-06

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