ROTARY ELECTRIC MACHINE

An object of the present invention is to provide a rotary electric machine in which damage of a magnet is suppressed and cooling performance of the magnet is improved.The present invention includes a rotation shaft 21, a rotor 20, and core end members 204 and 205 connected to end portions of the rot...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ITAYA, Takaki, GOTO, Hideaki, SAWAHATA, Masanori, HORI, Masahiro
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An object of the present invention is to provide a rotary electric machine in which damage of a magnet is suppressed and cooling performance of the magnet is improved.The present invention includes a rotation shaft 21, a rotor 20, and core end members 204 and 205 connected to end portions of the rotor 20. The rotor 20 includes a magnet 201, a rotor core 200, and interposed members 301a and 301b interposed between the magnet 201 and the rotor core 200. In the rotor core 200, a magnet insertion hole 202 for disposing the magnet 201 and flux barriers 203a and 203b are formed. The rotation shaft 21 is provided with a first flow path 21a through which a refrigerant flows. The core end members 204 and 205 are provided with a second flow path 504a joining the first flow path 21a and the flux barrier 203a. The interposed members 301a and 301b are provided along the axial direction such that a cooling flow path for the refrigerant is formed on both facing surfaces of the central portion of the magnet 201 in the axial direction, which are long sides of a rectangular cross section.