Magnetic-suspension high-energy density motor

The utility model discloses a magnetic-suspension high-energy density motor comprising a rotor assembly arranged in a stator assembly and a liquid cooling device communicated with the stator assembly. Two cooling liquid channels are arranged in a stator assembly housing; the inlet and the outlet of each cooling liquid channel are respectively arranged at the two ends of the stator assembly housing; and the inlets and outlets f the two cooling liquid channels have opposite setting directions. The liquid cooling device is provided with a cooling liquid box and two cooling liquid driving circulating channels communicated to the inside of the cooling liquid box; the outlet of the cooling liquid driving circulating channel I is connected with the inlet of the cooling liquid channel I in a sealing mode; the inlet of the cooling liquid driving circulating channel I is connected with the outlet of the cooling liquid channel I in a sealing mode; the outlet of the cooling liquid driving circulating channel II is connected with the inlet of the cooling liquid channel II in a sealing mode; and the outlet of the cooling liquid driving circulating channel I is connected with the inlet of the cooling liquid channel II in a sealing mode. On the basis of bidirectional cooling, a problem of large motor temperature gradient is effectively solved.