Electric motor and method of manufacturing electric motor

A method of manufacturing an electric motor, which comprises a stator including a copper terminal with which a power supply wire for use in supplying electric power for rotating a rotator is connected, the method comprising:

• winding an aluminum wire covered with a resin coating around the stator,
• peeling the resin coating of a terminal wire of the aluminum wire to expose an aluminum core wire;
• threading the terminal wire with the copper terminal;
• and
• joining the terminal wire and the copper terminal by covering an entire surface of the aluminum core wire of the terminal wire with a first solder containing zinc at less than 0.1% in percent by mass and silver at less than 0.1% in percent by mass.

An electric motor, comprising:

• a stator around which an aluminum wire having a resin coating layer formed on a surface of the aluminum wire is wound;
• and
• a rotator arranged on an inner side of the stator to be rotatable,
• the aluminum wire comprising a terminal wire including an aluminum exposed portion, from which the resin coating layer is peeled off to expose an aluminum core wire,
• the stator comprising
• a terminal with which the aluminum exposed portion and a power supply wire for use in supplying electric power for rotating the rotator are connected, the terminal electrically conducting the aluminum exposed portion and the power supply wire, the terminal including a power supply wire connection portion with which the power supply wire is connected,
• a first solder layer formed on the terminal to cover an entire surface of the aluminum exposed portion, the first solder layer being configured to join the aluminum exposed portion and the terminal to each other, and
• a resin layer coating the stator except for the power supply wire connection portion of the terminal.