FIELD: electricity.
SUBSTANCE: invention may be used in systems of automatics, as motor - wheels, motor - drums, starter - generators, electric power steering, direct drives in electrical appliances, electric drives of high and medium capacity of vessels, vehicles, concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for pumping of fluids, mechanisms with high torque on shaft and low frequencies of its rotation, and also as wind-powered generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Proposed contactless reducer electric machine with electromagnet excitation comprises geared stator with odd and even packs charged from insulated sheets of electric steel with high magnetic permeability with explicit poles, on inner surface of which there are elementary cogs, besides, packets of stator in tangential direction are arranged so that axes of their explicit poles of all stator packets arranged opposite to each other in axial direction match, and between odd and even packets of stator there is inductor excitation winding arranged in the form of circular coils with longitudinal axis, matching with longitudinal axis of machine, coil m-phase winding of anchor, each coil of which is arranged on according explicit poles of stator packets and covers one explicit pole of each packet, and winding-free ferromagnetic rotor, comprising non-magnet shaft and soft magnetic bush on it with odd and even packets charged from insulated sheets of electric steel with high magnetic permeability with identical number of teeth at each packet, besides, even packets of rotor are displaced relative to odd ones in tangential direction by half of gear division of rotor packet. At the same time certain ratios are maintained between number of explicit poles of each stator packet, number of elementary teeth on each explicit pole of stator packet, number of explicit poles of each stator packet in phase, number of teeth of each stator packet, number of teeth of each rotor packet and number of phases of m-phase winding of anchor of contactless reducer electric machine with electromagnetic excitation.
EFFECT: provision of high power and operational indices, high specific rotary torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, high specific capacity at high frequencies of electromotive force in mode of electric generator.
17 cl, 15 dwg, 1 tbl
