Compressor and refrigeration device

Abstract

A compressor includes a casing, a compression mechanism unit provided in the casing, and a motor provided in the casing to drive the compression mechanism unit. The motor include a rotor having a cylindrical shape, and a balance weight provided on an end surface of the rotor in an axial direction and having an annular outer peripheral surface. The balance weight includes an end surface facing the rotor, a recessed portion provided on the end surface, a wall portion provided between the recessed portion and the outer peripheral surface, and a communication path provided on the wall portion and allowing a space of the recessed portion and a space on an outer side of the wall portion in a radial direction to communicate with each other.

Dependencies are inferred from the claim text.