Contactless electricity supply system for vehicle
AssigneeNissan Motor Co., Ltd.
InventorKeishi OYAIZU
Life of this patent
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Abstract
A contactless electricity supply system for a vehicle includes a power transmitter coil unit provided on a ground-side and a lifting device for lifting up the power transmitter coil unit from the ground. The power transmitter coil unit supplies electricity to a power receiving coil unit by magnetic coupling therewith. The power transmitter coil unit includes a case that houses a power transmitter coil. A bulge is formed on an upper face of the case around a winding center axis of the power transmitter coil wounded in a planar manner in a plan view.
Claims6
-7. (canceled)
A contactless electricity supply system for a vehicle, the system comprising:
- a power transmitter coil unit provided on a ground-side;
- and
- a lifting device that lifts up the power transmitter coil unit from the ground, wherein
- the power transmitter coil unit includes a power transmitter coil that supplies electricity contactlessly to a power receiving coil unit provided on a vehicle-side by magnetically coupling with a power receiving coil housed in the power receiving coil unit, and a case that houses the power transmitter coil, a first foreign object detection coil and a second foreign object detection coil,
- the power transmitter coil is wound in a planar manner about a winding center axis,
- a bulge is formed around the winding center axis on an upper face of the case so as to bulge upward from a surrounding surface,
- the first foreign object detection coil is disposed on the power transmitter coil, and detects a foreign object above the power transmitter coil based on induction voltage generated in the first foreign object detection coil, and
- the second foreign object detection coil is disposed beneath the bulge, and detects a foreign object on the bulge based on induction voltage generated in the second foreign object detection coil.
Dependencies are inferred from the claim text.