ELECTRICITY SUPPLY DEVICE, ELECTRICITY RECEPTION DEVICE, AND ELECTRICITY SUPPLY SYSTEM

摘要

In the present invention, an electricity supply unit (103) contactlessly supplies electricity using electromagnetic induction to an electricity reception unit (153) provided to a vehicle. An electricity supply coil (103a) has a ring shape, and supplies electricity to the electricity reception unit (153) while facing the electricity reception unit (153). A casing (103b) houses the electricity supply coil (103a). The casing (103b) has an inclined section (202) that is inclined in a manner so as to approach the electricity supply coil (103a) gradually in the direction towards the outer periphery (212) of the electricity supply coil (103a) in the radial direction of the electricity supply coil (103a) at the portion at which the electricity supply coil (103a) is projected when the electricity supply coil (103a) is projected at the casing (103b) in the direction towards the electricity reception unit (153).