Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadashi Maeda0
Hideyuki Yoshizawa0
Kazushi Horie0
Date of Patent
October 19, 2010
0Patent Application Number
120650400
Date Filed
April 14, 2006
0Patent Primary Examiner
Patent abstract
A cooling device of an electric motor for a vehicle for receiving cooling air into the electric motor through a suction port according to the rotation of a rotor shaft on which a rotor core, which is disposed opposite to a stator core, is installed. The cooling device includes an air volume regulating mechanism regulating a cooling air volume received therein through the suction port according to an ambient temperature. Since the cooling air volume received in the cooling device through the suction port is regulated according to the ambient temperature, the cooling of the electric motor can be optimized, and noise generated can be efficiently reduced according to the ambient temperature.
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