ASYNCHRONOUS MOTOR WITH A PHASE ROTOR Russian patent published in 2022 - IPC H02P1/26 H02P1/04 H02P23/14 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to devices that allow contactless start of an asynchronous motor with a phase rotor. The stator of the proposed asynchronous motor has a well-known design. In Fig. 1 shows a circuit diagram of its rotor. The power part of this circuit contains the first (LA), second (LB) and third (LC) phase windings of the rotor, connected according to the "star" scheme, three diodes: (VD1), (VD2) and (VD3), as well as a thyristor (VS) and a starting resistor (Rs). The thyristor control circuit (VS) includes two optocouplers, (U1) and (U2), a single shot (G1) with a falling edge restart, and a NOR gate (1).

EFFECT: reduction in weight and size indicators.

1 cl, 3 dwg