Motor using connection varying apparatus

摘要

A motor includes: a first slot and a second slot in which a first current having the same phase flows, the first slot including a first coil end portion in which a current flows in a first direction and a second coil end portion in which a current flows in the opposite direction of the first direction, and the second slot including a third coil end portion in which a current flows in the second direction and a fourth coil end portion in which a current flows in the first direction, a stator forming a fixed magnetic field by the first current, and a rotor forming a rotating field and rotated according to an interaction with the fixed magnetic field formed by the stator.

主权项

1. A motor comprising:
a first slot and a second slot in which a first current having the same phase flows, the first slot including a first coil end portion in which a current flows in a first direction and a second coil end portion in which a current flows in the opposite direction of the first direction, and the second slot including a third coil end portion in which a current flows in the second direction and a fourth coil end portion in which a current flows in the first direction; a stator forming a fixed magnetic field by the first current; a rotor forming a rotating field and rotated according to an interaction with the fixed magnetic field formed by the stator; and a connection varying apparatus configured to dispose a winding connected in series or in parallel by selectively connecting one or more of the first coil end portion and the second coil end portion of the first slot and the third coil end portion and the fourth coil end portion of the second slot, wherein the stator comprises: third and fourth slots in which a second current having a phase 120-degree faster than the first current, and fifth and sixth slots in which a third current having a phase 120-degree slower than the first current, wherein the third slot, the fourth slot, the fifth slot, and the sixth slot comprise a coil end portion in a first current direction in which a current flows in the first direction and a coil end portion in a second current direction in which a current flows in the second direction, respectively.