Claims:1. A rotary electromagnetic device (100), comprising:
a rotor (102);
a stator core (106);
a stator wire (302) made of aluminum and wound on the stator core (106) and wherein the stator wire (302) is insulated; and
a connection wire (304) connected to the stator wire (302), wherein the connection wire (304) is made of copper;
wherein the connection wire (304) is connected to the stator wire (302) by ultrasonic welding to form a mutually welded stator wire and connection wire portion (210), and
wherein the mutually welded stator (302) wire and connection wire portion (210) is to connect to a terminal (308).
2. The rotary electromagnetic device(100) as claimed in claim 1, wherein the mutually welded aluminum wire and connection wire portion (210) are connected to the terminal (308) through soldering.
3. The rotary electromagnetic device (100) as claimed in claim 1, wherein the electromagnetic rotary device (100) is one of an electrical generator and an electrical motor.
4. The rotary electromagnetic device (100) as claimed in claim 1, wherein the stator wire (302) is insulated with an electrical non-conductor coating comprising one of resin, polyvinylchloride and polytetrafluoroethylene.
5. The rotary electromagnetic device (100) as claimed in claim 1, wherein the electromagnetic device is an Alternating Current (AC) generator.
6. A method (400) of connecting a terminal (308) to a rotary electromagnetic device (100), comprising:
removing insulation at one of ends of a stator wire (302) to form a de-insulated portion of the stator wire (302), wherein the stator wire (302) being wound on a stator core (106) of the rotary electromagnetic device (100), and the stator wire (100) being made of aluminum;
connecting the de-insulated portion of the stator wire (302) to a connection wire (304) by ultrasonic welding to form a mutually welded stator wire and connection wire portion (210), wherein the connection wire (304) is made of copper; and
connecting the mutually welded stator wire and connection wire portion (210) to a terminal (308).
7. The method (400) as claimed in claim 6, wherein the method is performed without changing configuration of the stator (104).
8. The method (400) as claimed in claim 6, wherein removing the insulation comprises scrapping the insulation on the stator wire (302).
9. The method (400) as claimed in claim 6, wherein connecting comprises connecting the mutually welded stator wire and connection wire portion (210) to the terminal (308) by soldering.
, Description:As Attached