FIELD: electrical machines; electric drives of industrial robots, manipulators, and automatic- control systems. SUBSTANCE: dc motor stator has nonmagnetic frame, pole cores in the form of truncated tetragonal pyramids, flat permanent magnets, external magnetically soft yoke. The latter is, essentially, hollow cylinder with rectangular conical holes mounting pole cores turned about their axes so that one diagonal of bottom base of pole core is parallel to motor axis. EFFECT: enlarged functional capabilities. 2 dwg
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