To suppress a reduction of a power transmission efficiency when a misalignment between a power transmission coil and a power reception coil occurs.SOLUTION: In a wireless power transmission system, a wireless power supply unit has a power transmission coil 116 and a power reception coil 216 wirelessly receiving power from the power transmission coil. One of the power transmission coil and the power reception coil has a shape in which a central part is positioned in an inner part than a peripheral part, when viewed from the other one of the power transmission coil and the power reception coil, in use.SELECTED DRAWING: Figure 6A
【課題】送電コイルと受電コイルとの間で位置ずれが生じた場合における電力伝送効率の低下を抑制する。【解決手段】無線電力伝送システムにおいて、無線給電ユニットは、送電コイル116と、送電コイルから無線で電力を受け取る受電コイル216とを備える。送電コイルおよび受電コイルの一方は、使用時において、送電コイルおよび受電コイルの他方から見て、中央部が外周部よりも奥に位置する形状を有する。【選択図】図6A
WIRELESS POWER SUPPLY UNIT AND WIRELESS POWER TRANSMISSION SYSTEM
無線給電ユニットおよび無線電力伝送システム
2021-04-22
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 / H01F MAGNETS , Magnete |
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