Rotor and motor

摘要

A rotor and a motor are provided in which the q-axis inductance is increased and the leakage of magnetic flux is prevented to ensure high power operation at high level driving speeds. The rotor includes a rotor core, which is formed at the center thereof with a hole coupled to a shaft, and a module configured to be coupled to the rotor core and comprises a pair of first permanent magnets, which are space apart from each other, and a first connection part connecting ends of the first permanent magnets to each other.

主权项

1. A rotor comprising:
a rotor core with a hole coupled to a shaft disposed at a center of the rotor; and first modules and second modules alternately disposed next to each other with a gap of a constant width in the rotor core, each module comprising:
a pair of first permanent magnets spaced apart from each other;a first connection part which connects ends of the first permanent magnets to each other;a pair of second permanent magnets spaced apart from the first permanent magnets; anda second connection part which connects the ends of the second permanent magnets to each other, wherein the first permanent magnets of the first modules have an N pole on their sides facing the gap, while the first permanent magnets of the second modules have an S pole on their sides facing the gap, and wherein the pair of second permanent magnets are magnetized with the same poles as the first permanent magnets.