Cooling structure of high-pressure electronic water pump controller

The utility model relates to a high-pressure electronic water pump controller cooling structure which comprises a motor stator, a rotor, a front bearing cover, a rear bearing cover, a volute, an impeller, a bearing, a machine shell, a cooling block, a rear cover, a controller, a water pump inlet and a water pump outlet. The volute cavity is communicated with the impeller flow channel, the impeller flow channel is communicated with the transition flow channel, the transition flow channel is communicated with the rotor cavity flow channel, the rotor cavity flow channel is communicated with the rear bearing cover flow channel and the rotor center flow channel, the rear bearing cover flow channel is connected with a water inlet of the cooling block flow channel, and a water outlet of the cooling block flow channel is communicated with the rotor cavity flow channel. According to the utility model, the contact area between the power module of the controller and the cooling liquid is increased, and the pipe wall of