To provide a radio power supply device which does not require a matching circuit and a switch part regardless of the number of power reception sides, and in which a structure is simplified, and provide plant equipment using the radio power supply device.SOLUTION: A radio power supply device 10 comprises: a high frequency power supply part 13; a power transmission electrode part 14; a power reception electrode part 21; a resonance coil 22; a rectification circuit part 23; a correction coil 24; a power storage part 25; and a control circuit part 26. The power transmission electrode part 14 outputs a high frequency having a constant voltage amplitude generated by the high frequency power supply part 13. The power reception electrode part 21 is provided so as to face the power transmission electrode part 14, and receives a power from the power transmission electrode part 14 in a non-contact manner by an electric field coupling. The rectification circuit part 23 is connected to the power reception electrode part 21 and rectifies a power received by the power reception electrode part 21. The correction coil 24 is provided between the power reception electrode part 21 and the rectification circuit part 23, and cancels an imaginary component generated in a rectification of a high frequency in the rectification circuit part 23. The control circuit part 26 maintains a voltage and the current supplied to the power storage part 25 in constant.SELECTED DRAWING: Figure 1
【課題】受電側の数にかかわらず、整合回路およびスイッチ部が不要となり、構造の簡略化が図られる無線給電装置およびこれを用いた工場設備を提供する。【解決手段】無線給電装置10は、高周波電源部13、送電電極部14、受電電極部21、共振コイル22、整流回路部23、補正コイル24、蓄電部25および制御回路部26を備える。送電電極部14は、高周波電源部13で生成した電圧の振幅が一定の高周波を出力する。受電電極部21は、送電電極部14と対向して設けられ、電界結合によって非接触で送電電極部14から電力を受け取る。整流回路部23は、受電電極部21に接続し、受電電極部21で受け取った電力を整流する。補正コイル24は、受電電極部21と整流回路部23との間に設けられ、整流回路部23における高周波の整流で生成する虚数成分を打ち消す。制御回路部26は、蓄電部25に供給する電圧および電流を一定に維持する。【選択図】図1
RADIO POWER SUPPLY DEVICE AND PLANT EQUIPMENT USING THE SAME
無線給電装置およびこれを用いた工場設備
2020-08-31
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 |
Power supply device, power supply system, and method using same
European Patent Office | 2020
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