H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 9/06 (2006.01)
Patent
CA 2620733
A cooling device of an electric motor for a vehicle for taking cooling air into the electric motor through a suction port (7) according to the rotation of a rotor shaft (4) on which a rotor core (2) which is disposed oppositely to a stator core (1) is installed. The cooling device comprises an air volume regulating mechanism (WM) regulating a cooling air volume taken therein through the suction port (7) according to an ambient temperature. Since the cooling air volume taken 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.
La présente invention concerne un dispositif de refroidissement de moteur électrique pour véhicule, amenant l~air de refroidissement dans le moteur électrique à travers un orifice d~aspiration (7) selon la rotation d~un arbre rotor (4) sur lequel est installée une couronne rotor (2) disposée en face d~une couronne stator (1). Le dispositif de refroidissement comprend un mécanisme de régulation du volume d~air (WM) qui régule le volume d~air de refroidissement amené à l~intérieur de celui-ci à travers l~orifice d~aspiration (7) en fonction d~une température ambiante. Le volume d~air de refroidissement amené dans le dispositif de refroidissement à travers l~orifice d~aspiration étant régulé en fonction de la température ambiante, le refroidissement du moteur électrique peut être optimisé et le bruit généré efficacement réduit en fonction de la température ambiante.
Horie Kazushi
Maeda Tadashi
Yoshizawa Hideyuki
Marks & Clerk
Mitsubishi Electric Corporation
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