POWER SUPPLY DEVICE, POWER INCOMING DEVICE AND POWER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To decrease a magnetic flux passing through a foreign matter present on a housing surface so as to suppress the foreign matter from being heated to a high temperature during power supply.SOLUTION: A power supply unit 103 supplies a power incoming unit 153 disposed in a vehicle with power in a non-contact manner by using electromagnetic induction. A power supply coil 103a is ring-shaped and faces the power incoming unit 153 to supply the power incoming unit 153 with power. A housing 103b houses the power supply coil 103a. The housing 103b includes a tilt part 202 tilting at a portion on which the power supply coil 103a is projected when the power supply coil 103a is projected to the housing 103b in a direction toward the power incoming unit 153. The tilt part gradually comes close to the power supply coil 103a toward an outer periphery 212 of the power supply coil 103a in a radial direction of the power supply coil 103a.