FIELD: machine building.
SUBSTANCE: invention relates to devices and accessories of power plants related to cooling. Electric vehicle comprises power control unit, drive motor, first and second heat exchangers, first and second pumps, first and second cooling channels. Power control unit converts direct current from accumulator to alternating current. First cooling channel is equipped with the first pump which forces the first cooling liquid cooled in the first heat exchanger to flow through the power control unit and the second heat exchanger in that order and to return to the first heat exchanger. Second cooling channel is equipped with the second pump, which forces the second cooling liquid cooled by means of the first cooling liquid in the second heat exchanger, to flow through the drive motor and to return to the second heat exchanger. Second pump is an electric pump. Besides, the second pump controls circulation or circulating volume of the second cooling liquid on the basis of one or both temperature of the unit of power and temperature control of the first cooling liquid.
EFFECT: technical result consists in improvement of cooling efficiency of control unit and drive motor.
5 cl, 6 dwg
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