Power transmission device, power reception device and power transfer system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKoji Nakamura
Life of this patent
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Abstract
A power transmission device for use in a power transfer system in which resonance through an electromagnetic field is used includes a power-transmission-side electromagnetic induction coil, a power-transmission-side resonance unit, and a power-transmission-side shield unit surrounding the power-transmission-side electromagnetic induction coil and the power-transmission-side resonance unit. The power-transmission-side electromagnetic induction coil and the power-transmission-side resonance unit are disposed in an identical plane.
Claims20
A power transmission device for use in a power transfer system in which resonance through an electromagnetic field is used, comprising:
- a power-transmission-side electromagnetic induction coil;
- a power-transmission-side resonance unit;
- and
- a power-transmission-side shield unit surrounding said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit,
- said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit being disposed in an identical plane.
The power transmission device according to claim 4,
- comprising a plurality of slots recessed from said vehicle placement surface, wherein
- said power-transmission-side electromagnetic induction coil, said power-transmission-side resonance coil and said power-transmission-side shield unit are disposed in said slots, respectively.
The power transmission device according to claim 4, wherein
- said vehicle placement surface is a surface of a motor pool having a reinforcing member embedded in the ground, and
- said power-transmission-side shield unit is connected to said reinforcing member.
A power reception device for use in a power transfer system in which resonance through an electromagnetic field is used, comprising:
- a power-receiving-side electromagnetic induction coil;
- a power-receiving-side resonance unit;
- and
- a power-receiving-side shield unit surrounding said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit,
- said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit being disposed in an identical plane.
A power transfer system comprising a power transmission device and a power reception device,
- said power transmission device including
- a power-transmission-side electromagnetic induction coil,
- a power-transmission-side resonance unit, and
- a power-transmission-side shield unit surrounding said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit,
- said power reception device including
- a power-receiving-side electromagnetic induction coil,
- a power-receiving-side resonance unit configured to resonate with said power-transmission-side resonance unit through an electromagnetic field, and
- a power-receiving-side shield unit surrounding said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit, and
- said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit being disposed in an identical plane.
A power transfer system comprising a power transmission device and a power reception device,
- said power transmission device including
- a power-transmission-side electromagnetic induction coil,
- a power-transmission-side resonance unit, and
- a power-transmission-side shield unit surrounding said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit,
- said power reception device including
- a power-receiving-side electromagnetic induction coil,
- a power-receiving-side resonance unit configured to resonate with said power-transmission-side resonance unit through an electromagnetic field, and
- a power-receiving-side shield unit surrounding said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit, and
- said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit being disposed in an identical plane.
A power transfer system comprising a power transmission device and a power reception device,
- said power transmission device including
- a power-transmission-side electromagnetic induction coil,
- a power-transmission-side resonance unit, and
- a power-transmission-side shield unit surrounding said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit,
- said power reception device including
- a power-receiving-side electromagnetic induction coil,
- a power-receiving-side resonance unit configured to resonate with said power-transmission-side resonance unit through an electromagnetic field, and
- a power-receiving-side shield unit surrounding said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit,
- said power-transmission-side electromagnetic induction coil and said power-transmission-side resonance unit being disposed in an identical plane, and
- said power-receiving-side electromagnetic induction coil and said power-receiving-side resonance unit being disposed in an identical plane.
Dependencies are inferred from the claim text.