US 12,155,287 B2
Rotary electrical machine and rotor for such machine
Francis Bienaime, Mont Saint-Aignan (FR); Eduardo Carrasco, Saint Etienne sous Bailleul (FR); Julien Boisson, Gaillon (FR); and Alain Boulier, Villegats (FR)
Assigned to SKF Magnetic Mechatronics, Saint-Marcel (FR)
Filed by SKF Magnetic Mechatronics, Saint-Marcel (FR)
Filed on Sep. 2, 2022, as Appl. No. 17/902,514.
Prior Publication US 2023/0072259 A1, Mar. 9, 2023
Int. Cl. H02K 5/08 (2006.01); H01F 7/02 (2006.01); H02K 1/04 (2006.01); H02K 5/02 (2006.01)
CPC H02K 5/08 (2013.01) [H01F 7/0221 (2013.01); H02K 1/04 (2013.01); H02K 5/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rotor for a rotary electrical machine, the rotor comprising:
a shaft,
magnets supported by the shaft and delineated at one end by a first ring and at the opposite end by a second ring,
a hoop sleeve which extends between the first ring and the second ring, and
an annular protecting sleeve positioned on a radially outer side of the hoop sleeve, the annular protecting sleeve having first and second protective sleeve axial ends, wherein
the first and second annular protecting sleeve axial ends each extend axially outwardly past the first and second rings, respectively, and wherein
the annular protecting sleeve is at least partially made of polyetheretherketone (PEEK) resin.