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Rotating electrical machine

專利號(hào)
US11177721B2
公開日期
2021-11-16
申請(qǐng)人
HONDA MOTOR CO., LTD.(JP Tokyo)
發(fā)明人
Tadashi Yamaguchi; Takuro Kamada; Masahiko Mizuguchi; Kojiro Ohsaki
IPC分類
H02K1/32; H02K9/00; H02K1/22
技術(shù)領(lǐng)域
hole,rotor,path,flow,discharge,second,first,end,core,plate
地域: Tokyo

摘要

A rotating electrical machine includes a rotor and a stator. A first end plate includes a first refrigerant discharge hole which communicates with a second refrigerant flow path hole and supplies refrigerant to a first coil end and a first groove portion which supplies the refrigerant supplied from a refrigerant flow path to a first refrigerant flow path hole and does not supply the refrigerant to the first refrigerant discharge hole and the second refrigerant flow path hole. A second end plate includes a second refrigerant discharge hole which supplies the refrigerant to a second coil end and a second groove portion which supplies the refrigerant supplied from the first refrigerant flow path hole to the second refrigerant flow path hole and supplies the refrigerant to the second refrigerant discharge hole.

說明書

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The specification describes at least the following matters. Although the components or the likes which correspond in the embodiment described above are shown in a parenthesis, it is not limited to this.

(1) A rotating electrical machine (rotating electrical machine 50) which includes a rotor (rotor 51) and a stator (stator 52) arranged radially outside of the rotor in which

the rotor includes

a rotor shaft (rotor shaft 10) including a refrigerant flow path (refrigerant flow path 11) inside of the rotor shaft,

a rotor core (rotor core 20) including a rotor shaft hole (rotor shaft hole 21) through which the rotor shaft is inserted, a plurality of magnet insertion holes (magnet insertion holes 24) provided along a circumferential direction, and a first refrigerant flow path hole (first refrigerant flow path hole 25) and a second refrigerant flow path hole (second refrigerant flow path hole 26) penetrating in an axial direction,

a plurality of magnetic pole portions (magnetic pole portions 30) constituted of magnets (magnets 31) inserted into the magnet insertion holes,

a first end plate (first end plate 40a) arranged on a first axial end side of the rotor core, and

a second end plate (second end plate 40b) arranged on a second axial end side of the rotor core, opposite to the first axial end side,

the stator includes

a first coil end (first coil end 98a) located radially outward of the first end plate, and

a second coil end (second coil end 98b) located radially outward of the second end plate,

權(quán)利要求

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