PROBLEM TO BE SOLVED: To provide a non-contact power supply device capable of detecting the entry of not only a metal foreign substance but also a living thing.SOLUTION: In a non-contact power supply device in which non-contact power supply is performed in a state where a power transmission coil case having a built-in power transmitting coil of a non-contact power supply transformer and a power reception coil case having a built-in power receiving coil on the vehicle side face each other with a space therebetween, a plurality of foreign matter detection sensors 30 are disposed on the side of the power transmission coil case. The foreign matter detection sensor 30, having a detection electrode 31 and a ground electrode 32 arranged apart from each other on the same plane, detects the presence or absence of a foreign matter between the power transmission coil case and the power reception coil case on the basis of a change in the capacitance between the detection electrode 31 and the ground electrode 32. Since the electrostatic capacitance between the detection electrode 31 and the ground electrode 32 changes depending on the existence of metal or water, not only metal but also a living thing entered between the power transmission coil case and the power reception coil case can be detected.

    【課題】金物異物だけでなく、生物の侵入も検知可能な非接触給電装置を提供する。【解決手段】非接触給電トランスの送電コイルが内蔵された送電コイルケースと、車両側の受電コイルが内蔵された受電コイルケースとが間隔を空けて対向する状態で非接触給電が行われる非接触給電装置において、送電コイルケースの側に複数の異物検知センサー30が配置され、この異物検知センサー30が、同一平面上に離間して配置された検出電極31及び接地電極32を有し、検出電極31と接地電極32との間の容量の変化に基づいて、送電コイルケースと受電コイルケースとの間の異物の有無が検知される。検出電極31と接地電極32との間の静電容量は、金属や水分の有無により変化するため、金属だけでなく、送電コイルケースと受電コイルケースとの間に侵入した生物も検知できる。【選択図】図3


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    Title :

    NON-CONTACT POWER SUPPLY DEVICE WITH FOREIGN MATTER DETECTION FUNCTION


    Additional title:

    異物検知機能を備えた非接触給電装置


    Contributors:

    Publication date :

    2015-12-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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