WIRELESS POWER TRANSMISSION COIL, WIRELESS POWER SUPPLY SYSTEM, WIRELESS POWER RECEPTION SYSTEM AND WIRELESS POWER TRANSMISSION SYSTEM

PROBLEM TO BE SOLVED: To provide a wireless power transmission coil in which reduction of Q value is suppressed while ensuring excellent heat dissipation characteristics, and to provide a wireless power supply system, a wireless power reception system and a wireless power transmission system.SOLUTION: A wireless power transmission coil 100 includes a magnetic material 110, a winding 140 wound around the magnetic material 110, and a heat dissipation member 150 for dissipating heat generated from the magnetic material 110. The magnetic material 110 has a first magnetic material 120 and a second magnetic material 130 placed oppositely with the heat dissipation member 150 interposed therebetween, and the winding 140 is wound so that magnetic flux interlinks the direction substantially orthogonal to the opposite direction of the first and magnetic materials 120, 130.SELECTED DRAWING: Figure 2 【課題】放熱特性に優れ、インダクタンス値とＱ値の低下が抑制されたワイヤレス電力伝送用コイル、ワイヤレス給電システム、ワイヤレス受電システムおよびワイヤレス電力伝送システムを提供すること。【解決手段】ワイヤレス電力伝送用コイル１００は、磁性体１１０と、磁性体１１０に巻回される巻線１４０と、磁性体１１０から発生する熱を放熱する放熱部材１５０と、を備え、磁性体１１０は、間に放熱部材１５０を介して対向配置される第１の磁性体１２０と第２の磁性体１３０を有し、巻線１４０は、第１の磁性体１２０と第２の磁性体１３０の対向方向と略直交する方向に磁束が鎖交するように巻回されている。【選択図】図２