Patent ID: 9601265
Date: 2017-03-21
CPC Classifications: H01F

Claim:
1. A direct drive type of system, comprising: a rail member; a movable member comprising a moving member held by the rail member and movable along the rail member and an electric motor driven by the moving member; a power transmission coil comprising a plurality of power transmission coil segments each composed of a planar coil and cascade-arranged along the rail member with a coil-less region provided between two of the mutually adjacent transmission coil segments, wherein high-frequency current is supplied to the power transmission coil segments from a power source; a power reception coil arranged in the movable member so as to be opposed to the power transmission coil via a gap, wherein the power reception coil is formed as a planar coil having an area opposed to each of the power transmission coil segments and the area of the power reception coil is smaller than an area of each of the power transmission segments, wherein power to be fed to the motor is non-contact transmitted from the power transmission coil to the power reception coil by a magnetic resonance phenomenon.