WO2008093031A3 - Rotor for a rotary electric machine including at least one member defining a magnetic barrier carried by a holder including a ventilation or noise reduction member - Google Patents

Rotor for a rotary electric machine including at least one member defining a magnetic barrier carried by a holder including a ventilation or noise reduction member Download PDF

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Publication number
WO2008093031A3
WO2008093031A3 PCT/FR2007/052615 FR2007052615W WO2008093031A3 WO 2008093031 A3 WO2008093031 A3 WO 2008093031A3 FR 2007052615 W FR2007052615 W FR 2007052615W WO 2008093031 A3 WO2008093031 A3 WO 2008093031A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
electric machine
noise reduction
ventilation
rotary electric
Prior art date
Application number
PCT/FR2007/052615
Other languages
French (fr)
Other versions
WO2008093031A2 (en
Inventor
Alexandre Pfleger
Olivier Gas
Original Assignee
Valeo Equipements Electriques Moteur
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 Valeo Equipements Electriques Moteur filed Critical Valeo Equipements Electriques Moteur
Publication of WO2008093031A2 publication Critical patent/WO2008093031A2/en
Publication of WO2008093031A3 publication Critical patent/WO2008093031A3/en

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
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • 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
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H02K1/325—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium between salient poles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The invention relates to a rotor (24) for a rotary electric machine (20) mainly for the automotive industry, that comprises a front polar wheel (46N) and a rear polar wheel (46S), each polar wheel (46N, 46S) including claws (52) extending axially towards the other polar wheel (46S, 46N), each claw (52) of a polar wheel (46S, 46N) being circumferentially interleaved between two claws (52) of the other polar wheel (46S, 46N), at least one interpolar gap (62) being provided between the side faces (60) opposite two successive claws (52), and at least one member (68) defining a magnetic barrier being provided in the interpolar gap (62), characterised in that said member (68) is carried by a holder (90, 120) that comprises a ventilation member or a noise reduction member.
PCT/FR2007/052615 2007-01-30 2007-12-21 Rotor for a rotary electric machine including at least one member defining a magnetic barrier carried by a holder including a ventilation or noise reduction member WO2008093031A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0752971A FR2912008B1 (en) 2007-01-30 2007-01-30 ROTOR OF ROTATING ELECTRIC MACHINE EQUIPPED WITH AT LEAST ONE MEMBER FORMING A MAGNETIC BARRIER CARRIED BY A SUPPORT COMPRISING A VENTILATION OR NOISE REDUCTION ELEMENT
FR0752971 2007-01-30

Publications (2)

Publication Number Publication Date
WO2008093031A2 WO2008093031A2 (en) 2008-08-07
WO2008093031A3 true WO2008093031A3 (en) 2009-11-26

Family

ID=38432912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/052615 WO2008093031A2 (en) 2007-01-30 2007-12-21 Rotor for a rotary electric machine including at least one member defining a magnetic barrier carried by a holder including a ventilation or noise reduction member

Country Status (2)

Country Link
FR (1) FR2912008B1 (en)
WO (1) WO2008093031A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8629597B2 (en) 2010-03-03 2014-01-14 Remy Technologies, Llc Airflow passage arrangement for claw-pole electric machines

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178146A (en) * 1990-11-08 1992-06-25 Nippondenso Co Ltd Ac generator
US5483116A (en) * 1993-08-30 1996-01-09 Nippondenso Co., Ltd. Rotor for a rotating electric machine
JPH0998556A (en) * 1995-10-03 1997-04-08 Hitachi Ltd Ac generator for vehicle
EP0866542A2 (en) * 1997-03-21 1998-09-23 Denso Corporation Rotor of rotary machine having claw poles and auxiliary permanent magnets
US5969459A (en) * 1997-01-14 1999-10-19 Denso Corporation Rotary electric machine having Lundell type core
US6013967A (en) * 1998-01-26 2000-01-11 Robert Bosch Gmbh Synchronous machine, in particular generator for motor vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178146A (en) * 1990-11-08 1992-06-25 Nippondenso Co Ltd Ac generator
US5483116A (en) * 1993-08-30 1996-01-09 Nippondenso Co., Ltd. Rotor for a rotating electric machine
JPH0998556A (en) * 1995-10-03 1997-04-08 Hitachi Ltd Ac generator for vehicle
US5969459A (en) * 1997-01-14 1999-10-19 Denso Corporation Rotary electric machine having Lundell type core
EP0866542A2 (en) * 1997-03-21 1998-09-23 Denso Corporation Rotor of rotary machine having claw poles and auxiliary permanent magnets
US6013967A (en) * 1998-01-26 2000-01-11 Robert Bosch Gmbh Synchronous machine, in particular generator for motor vehicle

Also Published As

Publication number Publication date
FR2912008B1 (en) 2015-04-24
WO2008093031A2 (en) 2008-08-07
FR2912008A1 (en) 2008-08-01

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