Inner-rotor motor and rotor thereof

A rotor of the inner-rotor motor comprising:

• a shaft:
• an iron core comprising a magnetic yoke portion coupled with an outer periphery of the shaft, as well as a plurality of magnetic pole portions circumferentially coupled with an outer periphery of the magnetic yoke portion, wherein the iron core forms a plurality of receiving portions, and wherein each of the plurality of receiving portions is formed between adjacent tw of the plurality of magnetic pole portions:
• a plurality of permanent magnets received in the plurality of receiving portions, respectively;
• and
• a limiting member arranged at one side of the iron core in an axle direction of the shaft, wherein the limiting member comprises a covering face covering the plurality of permanent magnets in the axle direction of the shaft,
• wherein each of the plurality of permanent magnets comprises a first face facing and abutting against the outer periphery of the magnetic yoke portion, as well as a second face facing away from the magnetic yoke portion, wherein the limiting member comprises a plurality of engaging portions, and wherein each of the plurality of engaging portions extends towards a respective one of the plurality of receiving portions and abuts against the second face of a respective one of the plurality of permanent magnets.