Motor

摘要

According to one embodiment, a motor includes at least two base units. The base units are arranged along an axis of rotation of the motor. The base units each includes a rotor unit and an armature unit. The rotor unit is formed cylindrical, rotatable about the axis of rotation, and provided with permanent magnets. The armature unit includes a plurality of tripolar armature cores, and a first annular coil and a second annular coil coaxial with respect to the axis of rotation. In each of the at least two base units, the first annular coil is provided in a first annular space, the second annular coil is provided in a second annular space, and opposite currents are applied to the first and second annular coils.

主权项

1. A motor comprising:
at least two base units arranged along an axis of rotation of the motor, the at least two base units each including a rotor unit and an armature unit,
the rotor unit being formed cylindrical, rotatable about the axis of rotation, and provided with permanent magnets,the armature unit including a plurality of tripolar armature cores, and a first annular coil and a second annular coil coaxial with respect to the axis of rotation, the tripolar armature cores each having a first stator magnetic pole portion, a second stator magnetic pole portion and a third stator magnetic pole portion, the first to third stator magnetic pole portions opposing a plurality of surfaces of the rotor unit with a space defined therebetween, wherein the first stator magnetic pole portion opposes an outer circumference side of the rotor unit, the second stator magnetic pole portion opposes an upper side of the rotor unit, the third stator magnetic pole portion opposes a lower side of the rotor unit, the tripolar armature cores of each of the at least two base units are arranged around a circumference of the rotor unit of the each of the at least two base units; and in each of the at least two base units, the first annular coil is provided in a first annular space provided around the first and second stator magnetic pole portions and the rotor unit, the second annular coil is provided in a second annular space provided around the first and third magnetic pole portions and the rotor unit, and opposite currents are applied to the first and second annular coils.