| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor laminated core capable of preventing motor torque reduction, fixing resin cracking, motor destruction and the like caused by biasing of a stress which is generated in a resin for fixing a permanent magnet, and a manufacturing method of the rotor laminated core.SOLUTION: A rotor laminated core 1 is formed by positioning at least one end face 3e of a permanent magnet 3 inside of axial end faces 2l and 2u of a laminated core body 2, exposing the one end face 3e oppositely to an opening 2o of a magnet accommodation hole 2O and opening an entire region of the opening. The manufacturing method includes the steps of: fitting a supporting protrusion of a jig into the magnet accommodation hole; mounting the laminated core body on the jig; and filling the magnet accommodation hole with a resin while supporting the permanent magnet within the magnet accommodation hole by means of the supporting protrusion. |
