GENERATOR, ELECTRONIC APPARATUS AND ELECTRONIC TIME PIECE

摘要

PROBLEM TO BE SOLVED: To provide a generator with large generation capacity by eliminating the iron loss of a magnetic circuit and the coging torque. SOLUTION: For a generator device consisting of a rotor part consisting of a rotary shaft 22 and a permanent magnet 20 arranged in the vicinity of the rotary shaft and more than one york 21a and 21b and a stator part 26 arranged by a plurality of coils 25 in concentric circles around the rotary shaft in the center, the coil core 24 is constituted of an air core or non-magnetic material. By this, the iron loss and the cogging torque are eliminated and power generation coefficient is raised.