Cooled permanent-magnet machine for compressor

The utility model relates to a permanent-magnet machine. Cooled permanent-magnet machine for compressor including a permanent-magnet machine main part, is equipped with a cooling system in the permanent-magnet machine main part, cooling system includes a cylinder type cooling body, is equipped with coolant transmission in the cylinder type cooling body and uses transmission path, the permanent-magnet machine main part includes the rotor shaft, is equipped with a blind hole in the rotor shaft, is equipped with the cooling body in the blind hole, is equipped with the bearing between cooling body and the blind hole, and the bearing is equipped with at least two, and the direction of arranging of bearing is on a parallel with the the central axis direction of cooling body, still be equipped with a cooling oil reservoir between cooling body and the blind hole. The utility model discloses the cooling body passes through bearing and rotor shaft and links to each other, when the rotor shaft rotates, because it can not rotate in step to be equipped with the bearing cooling body, because of cooling body and the non- direct contact type of rotor shaft, can't the antitrochanter axle carries out direct cooling, the utility model discloses a cooling body and the transmission of rotor shaft temperature between them are realized as intermediary's medium to the cooling oil reservoir.