| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance electromagnetic connection characteristic by widening a core confronting area in a restricted core volume, and make a channel necessary for high inductance and the core volume coexist with the other transmission channel, and obtain a mutually superior characteristics. SOLUTION: An edge part where a lower plane of a rotary core 110 joins with an outer peripheral plane is provided with a cutout annular groove 116B of a substantially L-shaped section, and a coil 118B is disposed. A stator core 120 is provided with a confronting annular groove 126B corresponding to the cutout annular groove 116B, and a coil 128B is disposed. A high inductance power transmission channel is constituted by such a cutout annular groove 116B, which confronts annular groove 126B, and respective coils 118B, 128B. In other words, the edge part is cut out into an L shape and the coil is disposed, whereby the magnitude of a core confronting area and the position of a magnetic gap are effectively established three-dimensionally, and space-saving and an increase in efficiency due to reduction in a magnetic path length are made compatible.</p> |
