POWER SUPPLYING DEVICE, POWER RECEIVING DEVICE, AND POWER SUPPLYING SYSTEM
1 Assignment
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Accused Products
Abstract
The purpose of the invention is to facilitate mounting of a power receiving coil on a vehicle and also extend the allowable range of the positional shift of the power receiving coil with respect to a power supplying coil to prevent a power supply efficiency from lowering. A power supplying device (100) uses electromagnetic force to supply power to a vehicle (130) having a power receiving coil (153a) and has a power supplying coil (103a) facing the power receiving coil (153a) and supplying power thereto. The power supplying coil (103a) has substantially the same shape as the power receiving coil (153a) and has a first length longer than a second length, said first length being the length in the right and left direction of the vehicle (130), said second length being the length in the front and rear direction of the vehicle (130).
7 Citations
14 Claims
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1-7. -7. (canceled)
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8. A power supply apparatus that supplies power to a vehicle including a power receiving coil, using an electromagnetic force, the power supply apparatus comprising a power supply coil that faces the power receiving coil and that supplies power, wherein
the power supply coil has a first length longer than a second length, the first length being a length of the vehicle in a left and right direction of the vehicle, the second length being a length of the vehicle in a front and rear direction of the vehicle, and when an assumed range of displacements from an assumed target stop position where the vehicle receives power supply is equal to or less than a third length in the left and right direction of the vehicle and is equal to or less than a fourth length in the front and rear direction of the vehicle, the first length is greater than at least twice the third length, and the second length is greater than at least twice the fourth length.
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12. A power receiving apparatus that is provided on a vehicle and that receives power supply from a power supply apparatus comprising a power supply coil, using an electromagnetic force, the power receiving apparatus comprising a power receiving coil that faces the power supply coil and receives power supply, wherein
the power receiving coil has a first length longer than a second length, the first length being a length of the vehicle in a left and right direction of the vehicle, the second length being a length of the vehicle in a front and rear direction of the vehicle, and when an assumed range of displacements from an assumed target stop position where the vehicle receives power supply is equal to or less than a third length in the left and right direction of the vehicle and is equal to or less than a fourth length in the front and rear direction of the vehicle, the first length is greater than at least twice the third length, and the second length is greater than at least twice the fourth length.
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14. A power supply system comprising:
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a power receiving apparatus provided on a vehicle; and a power supply apparatus that supplies power to the vehicle using an electromagnetic force, wherein the power receiving apparatus comprises a power receiving coil that faces the power supply apparatus and receives power supply, the power supply apparatus comprises a power supply coil that faces the power receiving coil and supplies power, wherein the power receiving coil and the power supply coil each have a first length longer than a second length, the first length being a length of the vehicle in a left and right direction of the vehicle, the second length being a length of the vehicle in a front and rear direction of the vehicle, and when an assumed range of displacements from an assumed target stop position where the vehicle receives power supply is equal to or less than a third length in the left and right direction of the vehicle and is equal to or less than a fourth length in the front and rear direction of the vehicle, the first length is greater than at least twice the third length, and the second length is greater than at least twice the fourth length.
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Specification