COIL, POWER RECEIVING APPARATUS, AND POWER TRANSMITTING APPARATUS
First Claim
Patent Images
1. A coil comprising a magnetic core and a winding,wherein the magnetic core includes at least one block provided with a groove or an opening, andeach block is arranged so as to make the groove or the opening extend along a direction of magnetic flux.
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Abstract
In one embodiment, a coil includes a magnetic core and a winding. The magnetic core includes at least one block provided with a groove or an opening. Each block is arranged so as to make the groove or the opening extend along a direction of magnetic flux. The coil is used as a power transmitting coil or a power receiving coil.
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Citations
20 Claims
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1. A coil comprising a magnetic core and a winding,
wherein the magnetic core includes at least one block provided with a groove or an opening, and each block is arranged so as to make the groove or the opening extend along a direction of magnetic flux.
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10. A power receiving apparatus comprising:
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a power receiving coil receiving power wirelessly by mutual inductance from a power transmitting apparatus; a capacitor connected to the power receiving coil; a rectifier converting AC power received via the capacitor into DC power; a communication unit communicating a power transmitting status or a power receiving status with the power transmitting apparatus; a sensor performing at least one of detection of received power, detection of foreign object, and detection of temperature; and a control unit controlling the received power, based on received information of the communication unit or a detection result of the sensor, wherein the power receiving coil includes a magnetic core and a winding, the magnetic core includes at least one block provided with a groove or an opening, and the plurality of blocks are arranged so as to make the groove or the opening extend along a direction of magnetic flux. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A power transmitting apparatus comprising:
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a power supply unit supplying a high-frequency power; a power transmitting coil wirelessly transmitting the power from the power supply unit to a power receiving apparatus by mutual inductance; a communication unit communicating a power transmitting status or a power receiving status with the power receiving apparatus; a sensor performing at least one of detection of transmission power, detection of foreign object, and detection of temperature; and a control unit controlling the transmission power based on received information of the communication unit or a detection result of the sensor, wherein the power transmitting coil includes a magnetic core and a winding, the magnetic core includes at least one block provided with a groove or an opening, and each block is arranged so as to make the groove or the opening extend along a direction of magnetic flux. - View Dependent Claims (17, 18, 19, 20)
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Specification