Title:
FLUX-CONCENTRATING ROTOR WITH PERMANENT MAGNETS FOR ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2015/185847
Kind Code:
A3
Abstract:
The present invention relates to a rotor (1) with permanent magnets (3) for a rotary electric machine including a plurality of alternating north poles (N) and south poles (S) and made up of a plurality of permanent magnets (3) arranged in first recesses (4) extending axially and distributed regularly between a circumferential portion (5) and a central portion (6) of the magnetic mass (2) of said rotor (1) such as to define a plurality of circumferential polar sections (10), said first recesses (4) being separated by central tabs (9) with a thickness E, said permanent magnets (3) having a polygonal radial section that comprises a substantially rectangular portion (8) next to said circumferential portion (5) adjacent to a substantially trapezoidal portion (7) next to said central portion (6). Said rotor (1) is characterised in that a ratio R0 (h/E) of a first height h of said trapezoidal portion (7) to the thickness E of a central tab (9) is predetermined such as to maximise the efficiency of said electric machine.
Inventors:
BOUARROUDJ LILYA (FR)
LEROY VIRGINIE (FR)
KIM NAM-GOOK (FR)
LEROY VIRGINIE (FR)
KIM NAM-GOOK (FR)
Application Number:
PCT/FR2015/051450
Publication Date:
February 04, 2016
Filing Date:
June 02, 2015
Export Citation:
Assignee:
VALEO EQUIP ELECTR MOTEUR (FR)
International Classes:
H02K1/27
Foreign References:
| US20130009505A1 | 2013-01-10 | |||
| US20130278105A1 | 2013-10-24 | |||
| FR2982093A1 | 2013-05-03 | |||
| FR2983658A1 | 2013-06-07 |
Attorney, Agent or Firm:
CONDEMINE, Olivier (2 rue André Boulle, Creteil Cedex, FR)
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