ROTOR STRUCTURE

PROBLEM TO BE SOLVED: To provide a rotor structure using an adhesive agent for making a permanent magnet fixed in an insertion hole, thereby enhancing the rigidity of a rotor core.SOLUTION: A rotor structure comprises: a rotor core 1 including a plurality of magnetic plates 10 each having a plurality of insertion holes 2 therein in an axial direction, and laminated so that each of the plurality of insertion holes 2 is overlapped with each other; a permanent magnet 4 inserted in each of the insertion holes 2 from an end face of the rotor core 1 in the axial direction, and fixed to a prescribed position of each of the insertion hole 2 with an adhesive agent 5. A flux barrier 6, made of an air gap, is provided at each side of the permanent magnet 4 in the insertion hole 2 in circumferential direction. A notch 3 facing with both the permanent magnet 4 and the flux barrier 6, is formed at least some of the insertion holes 2 of at least some of the magnetic plates 10. The adhesive agent 5, contained in the notch 3 and the flux barrier 6, penetrates between the adjoining magnetic plates 10 so as to bond the magnetic plates 10, thereby enhancing the rigidity of the rotor core 1.