US 11,955,856 B2
Rotary electric machine having insulating structure for rotor poles
Takeshi Kitayama, Shizuoka-ken (JP); and Hiroyuki Hattori, Okazaki (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Sep. 22, 2022, as Appl. No. 17/950,509.
Claims priority of application No. 2021-157056 (JP), filed on Sep. 27, 2021.
Prior Publication US 2023/0094290 A1, Mar. 30, 2023
Int. Cl. H02K 3/32 (2006.01); H02K 1/24 (2006.01); H02K 3/52 (2006.01)
CPC H02K 3/325 (2013.01) [H02K 1/24 (2013.01); H02K 3/527 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A rotary electric machine comprising
a stator; and
a rotor that is disposed so as to face the stator and that rotates together with a rotation shaft, the rotor including:
a rotor core including a plurality of rotor salient poles and a slot formed between adjacent rotor salient poles; and
a rotor coil wound around each of the rotor salient poles via an insulating member through the slot, the rotor coil includes:
a slot coil portion located inside the slot; and
a coil end portion protruding from an end surface of the rotor core in an axial direction,
wherein the insulating member includes:
a slot insulating portion provided between the slot coil portion and each of the rotor salient poles in a peripheral direction of the rotor core; and an end insulating portion provided between the coil end portion and each of the rotor salient poles in the axial direction of the rotor core, and the slot insulating portion and the end insulating portion are integrated; and
a first flange-shaped portion integrated with the slot insulating portion, the first flange-shaped portion being provided on an outer side of the coil end portion in the peripheral direction of the rotor core, the first flange-shaped portion is provided between the rotor salient pole and the slot coil portion.