At the time of molding, in the stator, the resin material flows inside the vent channels that are formed on the terminal block. At this time, as the resin reservoirs which are formed by expanding cross-sections of the vent channels are provided on the mounting surface of the terminal block, the resin material can be retained in the resin reservoirs. This consequently prevents the resin material from flowing through the vent channels to the outside of the terminal block. When the resin leaked part, which is the resin material that has leaked from the vent channels to the outside and been hardened, falls while using the motor, there is an adverse effect on another piece of equipment. Thus, the resin reservoirs that are formed in the vent channels act effectively in terms of preventing the resin material from flowing to the outside.