To provide a running non-contact power supply system capable of reducing magnetic leakage flux, without dropping power supply efficiency to a running vehicle.SOLUTION: A running non-contact power supply system comprises multiple transmission units consisting of a series connection of transmission coils 21-23 and a resonance capacitor, a high frequency power supply for supplying high frequency AC power to the multiple transmission units connected in series, switches 31-33 connected in parallel between the input terminals of respective transmission units, and control means for changing over open circuit/short circuit of the switches. When a power reception coil 40 approaches a transmission unit 22, the control means changes over the switch 32 of the transmission unit 22 from short circuit to open circuit at S3 point, and changes over the switch 32 to short circuit at S4 point, when keeping away from the transmission unit 22. The S3 point is farther than the S2 point of the transmission unit 21, and the S4 point is farther than the S5 point of the transmission unit 33. Even if the power reception coil is located in the middle of the transmission coil, both transmission coils never stop power supply simultaneously.SELECTED DRAWING: Figure 3
【課題】走行車両への給電効率を落とさずに漏洩磁束が削減できる走行中非接触給電システムを提供する。【解決手段】送電コイル21〜23と共振コンデンサとの直列接続から成る複数個の送電ユニットと、直列接続された複数の送電ユニットに高周波交流を供給する高周波電源と、各送電ユニットの入力端子間に並列接続されたスイッチ31〜,33と、スイッチの開放/短絡を切替る制御手段とを備える。制御手段は、受電コイル40が送電ユニット22に近づくとき、S3地点で送電ユニット22のスイッチ32を短絡から開放に切替え、送電ユニット22から遠ざかるとき、S4地点でスイッチ32を短絡に切り替える。S3地点は、送電ユニット21のS2地点よりも遠く、S4地点は、送電ユニット33のS5地点よりも遠い。受電コイルが送電コイルの中間に位置しても、送電コイルの両方が同時に給電を止めることは無い。【選択図】図3
RUNNING NON-CONTACT POWER SUPPLY SYSTEM
走行中非接触給電システム
2020-03-26
Patent
Elektronische Ressource
Japanisch
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 |
Semi-automatic tracking running electric vehicle matched with power supply contact road
Europäisches Patentamt | 2020
|Tramcar non-contact power supply and contact power supply coexisting power supply system
Europäisches Patentamt | 2020
|Europäisches Patentamt | 2015
|