Heat pipe cooling device of motor

The utility model discloses a heat pipe cooling device of a motor, which belongs to the technical field of motor cooling and comprises an outer sleeve, a heat pipe assembly and a fixing rod, the heat pipe assembly comprises a first heat pipe, a second heat pipe and two third heat pipes, the third heat pipes are of U-shaped structures and are symmetrically arranged, and the fixing rod is arranged on the outer sleeve. The two third heat pipes and the outer sleeve are in arc symmetry, fixing columns are fixed to the two ends of each third heat pipe correspondingly, the bottom end faces of the fixing columns are fixedly connected with adjusting rings, the adjusting rings are arranged outside fixing rods in a sleeving mode, and the fixing rods are vertically and fixedly arranged on the upper surface of the fixing plate. The fixing plates are symmetrically distributed at the two ends of the outer sleeve and fixedly connected with the outer sleeve respectively, and bolts are vertically installed on the fixing plates