Patent ID: 11863025
Assignee: EBARA CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. A resin molded rotor, comprising:
a rotor configured to hold a magnet;
a main shaft provided with the rotor mounted thereto and configured to transmit power to outside; and
a resin mold configured to integrally cover the rotor and part of the main shaft on respective sides in an axial direction of the rotor;
one or more O-rings placed between the resin mold and the main shaft to seal between the resin mold and the main shaft;
one or more grooves formed in part of an outer circumferential surface of the main shaft covered with the resin mold,
wherein the one or more grooves comprise a first groove arranged to overlap with the rotor in the axial direction to extend over the end face of the rotor, and
the one or more O-rings comprise a first O-ring placed in the first groove to contact the end face of the rotor, the main shaft, and the resin mold, thereby sealing between the resin mold and the main shaft and between the resin mold and the rotor.