POWER TRANSMISSION DEVICE, WIRELESS POWER SUPPLY SYSTEM, AND WIRELESS POWER SUPPLY DEVICE
First Claim
1. A power transmission device comprising:
- a power supply unit configured to supply power by a resonance frequency for magnetic resonance;
a power transmission resonance coil capable of magnetic resonance with a power reception resonance coil in said resonance frequency, the power transmission resonance coil being configured to supply said power from said power supply unit as magnetic field energy caused by said magnetic resonance;
a temperature detector provided in said power transmission resonance coil; and
a control unit configured to refer to a table stored in a memory expressing an allowable temperature range, determine whether a detected temperature detected by said temperature detector at an elapsed time is within said allowable temperature range at said elapsed time, and stop an operation of said power supply unit when said detected temperature is not within said allowable temperature range.
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Accused Products
Abstract
A power transmission device includes a power supply unit configured to supply power by a resonance frequency for magnetic resonance; a power transmission resonance coil capable of magnetic resonance with a power reception resonance coil in the resonance frequency, the power transmission resonance coil being configured to supply the power from the power supply unit as magnetic field energy caused by the magnetic resonance; a temperature detector provided in the power transmission resonance coil; and a control unit configured to refer to a table stored in a memory expressing an allowable temperature range, determine whether a detected temperature detected by the temperature detector at an elapsed time is within the allowable temperature range at the elapsed time, and stop an operation of the power supply unit when the detected temperature is not within the allowable temperature range.
308 Citations
7 Claims
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1. A power transmission device comprising:
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a power supply unit configured to supply power by a resonance frequency for magnetic resonance; a power transmission resonance coil capable of magnetic resonance with a power reception resonance coil in said resonance frequency, the power transmission resonance coil being configured to supply said power from said power supply unit as magnetic field energy caused by said magnetic resonance; a temperature detector provided in said power transmission resonance coil; and a control unit configured to refer to a table stored in a memory expressing an allowable temperature range, determine whether a detected temperature detected by said temperature detector at an elapsed time is within said allowable temperature range at said elapsed time, and stop an operation of said power supply unit when said detected temperature is not within said allowable temperature range. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless power supply system comprising:
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a power supply unit configured to supply power by a resonance frequency for magnetic resonance; a power transmission resonance coil capable of magnetic resonance with a power reception resonance coil in said resonance frequency, the power transmission resonance coil being configured to supply said power from said power supply unit as magnetic field energy caused by said magnetic resonance; a temperature detector provided in said power transmission resonance coil; a control unit configured to determine whether a detected temperature detected by said temperature detector at an elapsed time is within an allowable temperature range at an elapsed time, and stop an operation of said power supply unit when said detected temperature is not within said allowable temperature range; and a power reception resonance coil capable of magnetic resonance with said power transmission resonance coil in said resonance frequency, the power reception resonance coil being configured to receive said magnetic field energy transmitted from said power transmission resonance coil by said magnetic resonance.
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7. A wireless power supply device comprising:
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a power supply unit configured to supply power by a resonance frequency for magnetic resonance; a power transmission resonance coil capable of magnetic resonance with a power reception resonance coil in said resonance frequency, the power transmission resonance coil being configured to supply said power from said power supply unit as magnetic field energy caused by said magnetic resonance; a temperature detector provided in said power transmission resonance coil; and a control unit configured to refer to a table stored in a memory expressing an allowable temperature range, determine whether a detected temperature detected by said temperature detector at an elapsed time is within said allowable temperature range at said elapsed time, and stop an operation of said power supply unit when said detected temperature is not within said allowable temperature range.
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Specification