ROTATING MACHINE EQUIPPED WITH MAGNETS IN DUAL HALBACH ARRAY, METHOD FOR MANUFACTURING ROTATING MACHINE, SYSTEM FOR COOLING DRONE MOTOR BEARING

摘要

[Problem] To provide a rotating machine that is equipped with magnets in a dual Halbach array, and is easily assembled, lightweight, and easy to handle, in addition to exhibiting high electrical generator/motor efficiency. [Solution] The present invention relates to a rotating machine (permanent-magnet rotating electrical machine such as a generator or motor) that is equipped with magnets in a dual Halbach array. This rotating machine includes, for example: resin cylindrical members 11, 13; a plurality of permanent magnets 21, 31, each of which has a through hole for threaded engagement formed therein; and a plurality of screws 25, 35 for threadedly engaging the plurality of permanent magnets 21, 31 with the cylindrical members 11, 13. The plurality of permanent magnets 21, 31 threadedly engaged with the cylindrical members 11, 13 constitute a double-row permanent magnet array in a Halbach array (permanent magnet assembly in a dual Halbach array). The rotating machine includes a coreless coil that has no core and uses litz wire as the coil winding thereof.