| 摘要 |
PROBLEM TO BE SOLVED: To enable easy injection of a sealing agent for coil sealing in a thrust magnetic bearing.SOLUTION: An annular core (12) is provided which has: a parallel surface (S) opposing to a disc part (210) provided coaxially with a rotary shaft (200); and a coil slot (100) in which a coil (13) is accommodated. The coil slot (100) is formed in a circumferential groove which opens to the parallel surface (S) side. At an outer peripheral side inner surface part (104) in the circumferential groove, a side part groove (103) is formed across the whole circumference, and an injection hole (105) for a sealing agent (106) is formed which is connected to the side part groove (103).SELECTED DRAWING: Figure 6 |
