PROBLEM TO BE SOLVED: To provide a non-contact power supply device of an external demagnetization type, which can firstly negate a magnetic field to be leaked and spread to an external part, and can secondly easily realize the leakage and the spread of the magnetic field.SOLUTION: In a non-contact power supply device 10, an electric power is supplied to a power incoming side power incoming coil 3 from a power transmission side power transmission coil 2 on the basis of a mutual induction operation of an electromagnetic induction while having an air gap G and setting at an adjacency corresponding position. Demagnetization coils 24 and 25 are arranged on an outer peripheral outside of the power transmission coil 2 and the power incoming coil 3. The demagnetization coils 24 and 25 generate a magnetic field Hthat may be cancelled each other to a magnetic field Hthat is externally leaked and discharged to an adjacent periphery at an electric power supply. The power transmission coil 2 and the power incoming coil 3 are formed by a loop coil, and flat-plate magnetic cores 4 and 5 and electromagnetic shield members 6 and 7 are arranged on a loop surface outer side. The demagnetization coils 24 and 25 are also formed by the loop coil and a setting that a current opposite to the power transmission coil 2 and the power incoming coil 3 flows at 5 to 15%.SELECTED DRAWING: Figure 1
【課題】第1に、外部漏洩拡散される磁界を打ち消すことができ、第2に、しかもこれが簡単容易に実現される、外部消磁式の非接触給電装置を提案する。【解決手段】非接触給電装置10では、電磁誘導の相互誘導作用に基づき、送電側の送電コイル2から受電側の受電コイル3に、エアギャップGを存し近接対応位置しつつ電力を供給する。そして、送電コイル2や受電コイル3の外周外側に、消磁コイル24,25が配されている。消磁コイル24,25は、給電に際し、近隣周辺へと外部漏洩放射される磁界H1に対し、互いに打ち消し合う磁界H2を生成する。送電コイル2や受電コイル3は、ループコイルよりなり、ループ面外側に平板状の磁心コア4,5そして電磁遮蔽材6,7が配設されている。消磁コイル24,25も、ループコイルよりなり、送電コイル2や受電コイル3とは逆向きの電流が、その5〜15%程度で流れる設定よりなる。【選択図】図1
NON-CONTACT POWER SUPPLY DEVICE OF EXTERNAL DEMAGNETIZATION TYPE
外部消磁式の非接触給電装置
2017-10-26
Patent
Electronic Resource
Japanese
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 / H01F MAGNETS , Magnete |
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