2 results about "Motor test" patented technology

The cooling waterway automatic switching device for the motor test comprises a circulating waterway device and a control device, and the circulating waterway device comprises a high-temperature water tank, a low-temperature water tank, a first electromagnetic valve, a second electromagnetic valve, a first water pipe, a second water pipe, a third water pipe, a fourth water pipe, a fifth water pipe, a sixth water pipe and a seventh water pipe. A water outlet of the high-temperature water tank is connected with a P port of the first electromagnetic valve through a fourth water pipe; an A port of the second electromagnetic valve is connected with a water return port of the high-temperature water tank through a third water pipe; the control device comprises a motor controller, an electromagnetic valve driver, a first low-voltage power supply and a second low-voltage power supply; the motor controller outputs different signals to the electromagnetic valve driver according to different motor rotating speeds, the electromagnetic valve driver carries out corresponding driving control on the first electromagnetic valve and the second electromagnetic valve according to the obtained signals, linkage of the working condition of the motor and the cooling water channel is achieved, and the working efficiency of the motor is improved. And rapid and automatic switching of high-temperature and low-temperature cooling water of the motor is realized.