FIELD: electricity.
SUBSTANCE: proposed electric machine (1) consists of stator (4) and rotor (3), note that rotor (3) has some cooling channels (8) arranged in radial direction and first (5a) and second end surface (5b). Each end surface has a ventilation unit (6) that consists of at least two ventilating segments (7). Note that one ventilating segment (7) corresponds to one cooling channel (8) and alternately is located at the first (5a) and the second end surface (5b). Also, according to the present invention the said ventilating segment (7) has at least one air supply channel (7a) and two air guide louvers (7b, 7c) that are located at both sides of the air supply channel (7a). The said air guide louvers (7b, 7c) of two adjacent ventilating segments (7), at least in some areas overlap and contact each other.
EFFECT: improvement of electric machine cooling via provision of possibility to use fans for inner cooling of electric machines of different sizes, and improvement of electric machine cooling uniformity.
10 cl, 5 dwg
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