Air conditioning system for electric vehicle

The utility model discloses an air conditioning system for an electric vehicle. The air conditioning system for the electric vehicle comprises a vehicle-mounted air conditioning controller, a variable-frequency vortex compressor, a condensation fan and an air blower, wherein the driver control input end of the compressor is connected with a first control output interface of the controller. A control signal input interface of the controller is respectively connected with the signal output end of a cold and heat change-over switch. The air blower power supply input end is correspondingly connected with multiple stationary contacts of an air speed knob switch through a speed regulating resistor. Movable contacts of the air speed knob switch are two linkage contacts connected with an alternating current power supply. A second control output interface of the vehicle-mounted air conditioning controller is connected with a condensation fan starting relay. A third control output interface of the vehicle-mounted air c