| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling method of an electromagnetic induction circuit, and the electromagnetic induction circuit of improved cooling function, capable of propagation or conversion of electric power by applying electromagnetic induction that uses an alternating magnetic field. <P>SOLUTION: A part of an electrothermal conduction material 20, in which occurrence of an eddy current caused by an alternating magnetic field is suppressed, is arranged to abut with or to be close to a coil 12 in which an AC power flows to generate the alternating magnetic field. The heat generated by the coil 12 is discharged to the outside from other part of the electrothermal conduction material 20. The electrothermal conduction material 20 is formed by using a conducting wire 28. Here, it is assumed that the maximum cross-sectional width of the conducting wire 28 is D mm, the frequency of the alternating magnetic field is f Hz, the specific magnetic permeability of the conducting wire 28 is μs, and an intrinsic resistance value of the conducting wire 28 is ρ(μΩ cm), to satisfy a following formula: D<δ, here, δ=50.3×äρ/(f×μs)}<SP POS="POST">0.5</SP>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
