POWER TRANSMISSION DEVICE, AND METHOD FOR CONTROLLING POWER TRANSMISSION DEVICE

This power transmission device (300) comprises: a power transmission coil (42) that supplies power without contact to a power receiving coil (22) provided on a vehicle (10); a cover (43) that covers at least the axial direction top surface of the power transmission coil (42); a foreign matter detect...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	TERADA KOTA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	This power transmission device (300) comprises: a power transmission coil (42) that supplies power without contact to a power receiving coil (22) provided on a vehicle (10); a cover (43) that covers at least the axial direction top surface of the power transmission coil (42); a foreign matter detection coil (41) that is placed between the power transmission coil (42) and the cover (43); and an elevating mechanism (17) that keeps an interval between the power transmission coil (42) and the foreign matter detection coil (41), and raises and lowers the power transmission coil (42) and the foreignmatter detection coil (41) with respect to the ground. The foreign matter detection coil (41) is placed separated a prescribed distance in the axial direction from the cover (43) before detecting foreign matter. When the foreign matter detection coil (41) detects foreign matter, the elevating mechanism (17) raises the foreign matter detection coil (41) so that the distance between the foreign matter detection coil (41) a