| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the occurrence of a break in the connection wiring of a magnet bearing, a sensor, a motor, or the like. <P>SOLUTION: The electromagnet 8b of a radial magnet bearing portion 8 includes a core 81, a winding 82, and an insulator 83. The core 81 is hollow and cylindrical and has multiple protrusions protruded from its inner circumferential wall. The insulator 83 is constructed of an insulating portion 83a, an upper spacer portion 83b, and a lower spacer portion 83c. The insulating portion 83a insulates the winding 82 and the core 81 from each other. The upper spacer portion 83b is formed in the upper direction of the outer edge portion of the core 81, and the lower spacer portion 83c is formed in the lower direction. These parts of the insulator 83 are integrally formed by filling a predetermined mold with thermosetting epoxy resin material. Since the insulator 83 is constructed of an insulating material such as resin, lower in rigidity than metal, the rate of occurrence of a break is reduced when wiring or the like is pinched. <P>COPYRIGHT: (C)2008,JPO&INPIT |
