US 12,294,247 B2
Rotor for a rotating electric machine, and rotating electric machine
Thomas Squitiero, Creteil (FR); Alexis Rivals, Creteil (FR); and Pascal Tournaire, Creteil (FR)
Assigned to VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, Creteil (FR)
Appl. No. 17/906,578
Filed by VALEO EQUIPEMENTS ELECTRIQUES MOTEUR, Creteil (FR)
PCT Filed Mar. 18, 2021, PCT No. PCT/EP2021/057005
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/191052, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2002831 (FR), filed on Mar. 24, 2020.
Prior Publication US 2023/0146846 A1, May 11, 2023
Int. Cl. H02K 1/28 (2006.01); H02K 1/27 (2022.01); H02K 1/274 (2022.01)
CPC H02K 1/28 (2013.01) [H02K 1/27 (2013.01); H02K 1/274 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A rotor comprising:
a body,
permanent magnets,
the body comprising a plurality of rotor teeth defining cavities in which the permanent magnets are accommodated,
each rotor tooth comprising at least one holding part, the holding part comprising:
a holding portion comprising a holding face against which a radially outermost face of the permanent magnet bears,
a wing remote from the radially outermost face and in the circumferential continuation of the holding portion,
wherein the radially outermost face has a first plane of symmetry parallel to the axis of rotation, and wherein
the holding portion has a first end, with a first thickness, on a second plane parallel to the first plane and passing through an end part of the holding face, and wherein
the wing extends circumferentially between the first end and a free second end, the second end being at a first distance from the radially outermost face of the permanent magnet,
the first end being at a second distance from the first plane,
the first end and the second end being at a third distance from one another,
the ratio between the third distance and the second distance being between 0.09 and 0.45, and the ratio between the first thickness and the first distance being between 0.04 and 0.86.