A non-contact power feeding device feeds electric power in a non-contact manner from a transmission coil 31 installed on ground to a reception coil 32 of a mobile object stopping at a feeding position. The device includes, on the ground, an inverter 20 that outputs a high-frequency alternate current to the transmission coil 31, and a metal detecting-determining unit 40 that detects a metallic foreign object on the transmission coil. The metal detecting-determining unit 40 monitors the phase of a voltage and a current output from the inverter 20 to the transmission coil 31 and detects a metallic foreign object having entered during power feeding, based on a variation in the phase. The non-contact power feeding device can detect metallic foreign objects according to only measured data from the ground while the mobile object stops at the feeding position and can be simplified in structure.
CONTACTLESS POWER SUPPLY DEVICE CAPABLE OF DETECTING METALLIC FOREIGN OBJECTS AND METALLIC FOREIGN OBJECT DETECTION METHOD THEREFOR
KONTAKTLOSE ENERGIEVERSORGUNGSVORRICHTUNG ZUR DETEKTION METALLISCHER FREMDKÖRPER UND DETEKTIONSVERFAHREN FÜR METALLISCHE FREMDOBJEKTE DAFÜR
DISPOSITIF D'ALIMENTATION ÉLECTRIQUE SANS CONTACT APTE À DÉTECTER DES CORPS ÉTRANGERS MÉTALLIQUES, ET SON PROCÉDÉ DE DÉTECTION DE CORPS ÉTRANGERS MÉTALLIQUES
2017-06-07
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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