PROBLEM TO BE SOLVED: To provide a disk motor capable of suppressing rise in a temperature of a coil substrate of a rotor while suppressing a thickness of the rotor, and to provide an electric working machine having the disk motor.SOLUTION: A rotor of a disk motor is configured by laminating a plurality of coil substrates on which coil patterns are printed. Among these coil substrates, with respect to coil substrates 40Aa and 40Af provided at both ends in a lamination direction and having a relatively good heat radiation efficiency, coils are electrically connected in series. With respect to coil substrates 40Ab-40Ae provided on an inner side in the lamination direction and having a relatively bad heat radiation efficiency, at least a part of coils are electrically connected in parallel.COPYRIGHT: (C)2012,JPO&INPIT【課題】回転子の厚みを抑制しつつ回転子のコイル基板の温度上昇を抑制したディスクモータ及びディスクモータを備える電動作業機を提供する。【解決手段】ディスクモータの回転子は、コイルパターンが印刷された複数のコイル基板が積層されて構成される。このコイル基板のうち、比較的放熱効率の良い積層方向の両端のコイル基板40Aa,40Afについてはコイルが電気的に直列に接続されるように、比較的放熱効率の悪い積層方向の内側のコイル基板40Ab~40Aeについては少なくとも一部が電気的に並列に接続されるように構成する。【選択図】図7
