| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling bearing device with a power generator capable of improving power generation efficiency by a simple configuration. <P>SOLUTION: A magnetized part 9 and a non-magnetized part 36 are formed on a magnetized ring 3 across an equal interval toward the peripheral direction, and a guiding part 13 for guiding magnetic flux is provided on a magnetic ring 4 in a corresponding manner to the magnetized part 9. When the guiding part 13 opposes to the magnetized part 9, a first condition in which magnetic flux guided into a power generation coil 5 exists occurs. When the guiding part 13 opposes to the non-magnetized part 36, a second condition in which magnetic flux guided into the power generation coil 5 is reduced more than that in the first condition occurs. By switching these first and second conditions accompanying with relative rotation of inner and outer rings 32, 30, electromotive force is generated in the power generation coil 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
