| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil module, power feeding device, power reception device and non-contact power transmission device capable of suppressing degradation in a power transmission efficiency by increasing an adjustable range of a resonance frequency in non-contact power feeding using a magnetic resonance system.SOLUTION: A coil module 10 includes: a resonator 20 having a power transmission coil (a power feeding coil L1) and a capacitor C1; a mobility magnetic substance 30 formed by dispersing, in fluid, magnetic particles arranged on the opposite side to the side on which power transmission of the power transmission coil (the power transmission coil L1) is performed; and a DC magnetic field generation part 40 for applying a DC magnetic field to the mobility magnetic substance 30.SELECTED DRAWING: Figure 2 |
