| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply device capable of suppressing a decrease in the transmission efficiency of power from a power feeding section to a power receiving section, when the relative position of a power receiving coil to a power feeding coil changes, without performing complex control.SOLUTION: A power supply device 1 includes a coil set 4 consisting of a power feeding coil 2 and a power receiving coil 3, and a coil set 7 consisting of a power feeding coil 5 and a power receiving coil 6. The power feeding coils 2, 5 are held by a power feeding coil holding part 11, and the power receiving coils 3, 6 are held by a power receiving coil holding part 10, the relative position of which to the power feeding coil holding part 11 changes with time in a certain direction. The power feeding coils 2, 5 and power receiving coils 3, 6 are arranged in the Z direction, i.e., the changing direction of the relative position of the power feeding coil holding part 10 to the power feeding coil holding part 11. When the axial center CL1 of the power feeding coil 2 matches the axial center CL2 of the power receiving coil 3, the axial center CL3 of the power feeding coil 5 is deviated from the axial center CL4 of the power receiving coil 6, in the Z direction.SELECTED DRAWING: Figure 1 |
