ROTOR AND METHOD FOR MANUFACTURING THE SAME AND ELECTRIC VEHICLE

摘要

A rotor comprising a rotor core (131) secured to a rotary shaft (120) and having a hole (131A) for inserting a magnet, a magnet (132) inserted into the hole (131A), and a resin portion (133) injected into the hole (131A) for inserting a magnet. The rotor core (131) is constituted by laminating a plurality of magnetic steel plates (1310) in the axial direction. The magnetic steel plates (1310) includes magnetic steel plate (1312) having the hole (131A) for inserting a magnet and a hole (131B) for reducing the weight provided separately from the hole (131A), and magnetic steel plates (1311, 1313) located at at least one axial end of the rotor core (131) and having a portion covering the hole (131B) formed in the magnetic steel plate (1312).