Power receiving device and power transmitting device
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United States of America Patent
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Sep 5, 2017
Issued Date -
N/A
app pub date -
Feb 14, 2013
filing date -
Feb 14, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A power receiving device includes: a power receiving unit that receives electric power from an externally provided power transmitting unit contactlessly; and a casing having the power receiving unit accommodated therein, the casing including: a lid member located on the power transmitting unit's side and allowing a magnetic field to pass therethrough, and a plurality of temperature sensors provided at the lid member and sensing in temperature a foreign matter present between the power transmitting unit and the power receiving unit, the temperature sensors being spaced closer together at the location of a strong portion of an electromagnetic field strength generated from the power receiving unit than the location of a weak portion of the electromagnetic field strength generated from the power receiving unit.
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