ROTOR, ROTATING ELECTRICAL MACHINE, AND DRIVE DEVICE

A rotor includes: a rotor core having first and second vent holes penetrating in an axial direction; and a fan disposed to face at least one end surface on an axial side of the rotor core, and having an outflow path connected to the first vent hole and an inflow path connected to the second vent hol...

Full description

Saved in:
Bibliographic Details
Main Authors OGAWA, Kosuke, YANAGITA, Yuki, SUGINO, Masami, IWASAKI, Shuji
Format Patent
LanguageEnglish
Published 03.10.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
Online AccessGet full text

Cover

More Information
Summary:A rotor includes: a rotor core having first and second vent holes penetrating in an axial direction; and a fan disposed to face at least one end surface on an axial side of the rotor core, and having an outflow path connected to the first vent hole and an inflow path connected to the second vent hole. The fan includes a first surface facing the end surface, an outer surface positioned radially outside the first surface, and a first recess portion in the first surface and axially overlapping the first vent hole. The first recess portion includes a first opening portion opening to the outer surface. At least a part of the outflow path is surrounded by the end surface and the first recess portion. A cross-sectional area of the outflow path in the first opening portion is smaller than a minimum cross-sectional area of the inflow path.
Bibliography:Application Number: US202418621098