| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary transformer capable of preventing the mutual interference of electric signals between coils for channels and also capable of suppressing the deterioration in an electromagnetic coupling characteristics as a rotary transformer to a minimum. SOLUTION: In a rotary transformer in which coils 11, 12 are wound around the outer peripheral surface of a cylindrical rotary side core 4, this rotary transformer is provided with plural winding grooves 13, 14 formed along the circumferencial direction of the outer peripheral surface of the cylindrical rotary side core 4, plural coils 11, 12 provided in the winding grooves 13, 14 by being wound around the grooves and the draw-out groove 17 of lead wires 20, 21 of the coils 11, 12 formed along the longitudinal direction of the outer peripheral surface of the cylindrical rotary side core 4 and is made to be a constitution in which the lead wires 20, 21 of the two coils 11, 12 sharing the draw-out groove 17 are respectively arranged so as to be drawn out to opposite directions such as they become distant each other in the longitudinal direction of the draw-out groove 17.</p> |
