Disclosed is cooling plate for frequency converter

The utility model relates to a cooling plate for a frequency converter, which is characterized in that a liquid storage chamber and a cooling liquid conveying pipeline are arranged in the cooling plate, cooling liquid is arranged in the liquid storage chamber, a cooling liquid inlet and a cooling liquid outlet are respectively arranged at two ends of the cooling liquid conveying pipeline, and an inclined screw rod is further arranged in the liquid storage chamber. The spiral blade at the upper end of the screw rod is arranged corresponding to the position of the cooling liquid inlet, so that cooling liquid in the liquid storage chamber is conveyed to the cooling liquid inlet through the spiral blade of the screw rod, and the top end of the screw rod is in transmission connection with an output shaft of the motor through a coupler; the centrifugal machine is compact in structure, small in occupied space and high in universality, can correspondingly work only when the centrifugal machineworks, does not need ext