| 摘要 |
PROBLEM TO BE SOLVED: To provide an air blowing fan capable of preventing a crack by a difference in a thermal expansion coefficient of an impeller being a mold, and capable of preventing deformation of a rotor yoke by insert molding. SOLUTION: The rotor yoke 1 and a rotor shaft 4 are inserted into a metal mold for molding the impeller, integrally molded, and joined so that the peripheral resin thickness of an impeller embedding part 19 of the rotor yoke 1 becomes equal on the inner-outer peripheral side in the axial direction and the height of resin becomes equal on the inner-outer peripheral side. COPYRIGHT: (C)2007,JPO&INPIT
|
