| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device which transmits electric power or signals which non-contact and which hardly has a difference in induced power according to the location and has only a little damage on coils. SOLUTION: A non-contact transmission device has loop-like primary coils fastened to a base 21 and secondary coils 10 fastened to a table 1 which is so located as to face the base 21 with a space being formed between them. In this device, each of the primary coils 51 is wound round a non-magnetic winding frame 5 which has a square-shaped side face with a long hole 7L being formed in the center and an H-shaped cross section which has a loop-like groove 8 for burying the primary coil 51 and cores 9, each of which is constituted of a C-shaped core 91 and an I-shaped core 92, forms a closed magnetic path. Each of the secondary coils 10 is wound round the I-shaped core 92 and non- magnetic core installation stands 11, each of which has a groove for installing the side face of the secondary coil 10, are installed between the table 1 and the I-shaped cores 92. When the primary coils 51 are excited by AC current, current is induced in the secondary coils 10.</p> |
