AN ELECTRIC MOTOR STATOR

摘要

An electric motor stator, comprising a tubular lamination stack, including a plurality of annular laminations (1), each having a plurality of grooves (3) with a receiving opening (4) provided in a radially internal edge of the respective annular lamination (1); a coil defined by multiple coil turns (2) introduced in the grooves (3); and groove closing elements (6, 10), each groove (3) of each annular lamination (1) incorporating in a single piece, from at least one edge of the respective receiving opening (4), a closing element (4), which is deformable between an open position, unblocking the respective receiving opening (4) for introducing coil turns (2), and a closed position, reducing the width of the respective receiving opening (4) to a value which, during the operation of the motor in low currents, allows the magnetic field to consider said receiving opening (4) closed.