| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power transmission device capable of increasing the transmission distance.SOLUTION: A non-contact power transmission unit 1 includes: a washstand 10 which has a primary coil 24; and an electric toothbrush 30 which has a secondary coil 41, a rectification circuit 42 and power supply control section 43. The electric toothbrush 30 includes: a first auxiliary coil 45 that relays the flow of magnetic flux from the primary coil 24 to the secondary coil 41; and a second auxiliary coil 47 that relays the flow of magnetic flux from the primary coil 24 to the secondary coil 41. A central axis J12 of the second auxiliary coil 47 is perpendicular to a central axis J11 of the first auxiliary coil 45. |
