| 摘要 |
<p>PURPOSE:To provide a rotation device which has an electrically driven drive means built in a rotor, has no electrical contact exposed, is free from spark discharge and the like, and has a structure capable of feeding in a non-contact condition. CONSTITUTION:In the rotation device where an electrically driven drive means is built in the inside of a rotor 1, and the drive means built in the rotor can be rotated by electric power fed from the outside of the rotor 1, a coaxially wound feeder coil 12 is fixed at a specified position on a trestle located on the extension line of the rotating shaft of the rotor 1, and a coaxially wound receiving coil 11 is fixed at a specified position on the inner side of an end surface normal to the rotating shaft of the rotor 1. The rotation device has a structure where the feeder coil 12 and the receiving coil 11 are coaxially faced to each other with a specified gap maintained, a batteray section and a control circuit are provided in the inside of the rotor 1, and magnetic bodies are arranged around the above two coils.</p> |
