| 摘要 |
PROBLEM TO BE SOLVED: To provide a core unit and a power supply system, capable of suppressing the reduction of power transmission efficiency even when a core is divided.SOLUTION: A power supply system 1 supplies power in a non-contact manner through magnetic field resonance between a primary resonance coil C1 constituting a primary core unit 2 and a secondary resonance coil C2 constituting a secondary core unit 3. The primary and secondary resonance coils C1, C2 are wound round primary and secondary ferrite cores FC1, FC2, and face a direction orthogonal to the axial direction Y1 of the primary and secondary resonance coils at the time of power supply. The primary and secondary ferrite cores FC1, FC2 are divided into plurality along the axial direction Y1 of the primary and secondary resonance coils, and divided in such a manner that the width W11 of both end portions is shorter than the width W12 of the center portion. |
