COMMUTATION MOTOR WITH SEVERAL GROUPS OF EXCITING WINDINGS Russian patent published in 2009 - IPC H02K27/04 H02K27/00 

FIELD: electricity.

SUBSTANCE: invention deals with commutation motor (1) capable of operating at series and parallel excitation and suitable for using as a drive motor for the washing machine drum. The invention considers commutation motor with series or parallel induction, which is suitable for using, in particular, as a drive motor for washing machine drum. The motor is provided with stator (4) having even number of poles (5, 6). Above poles, there are several exciting windings (W) placed one above the other and with the start (A) and end (E) terminals. According to the invention, the exciting winding (W_1.1a, W_2.1i, W_3.1a, W_4.1i), located on one pole (5) and exciting winding (W_1.2a, W_2.2i W_3.2a, W_4.2i) being opposite to the exciting winding (W_1.1a, W_2.1i W_3.1a, W_4.1i) and symmetrical to the plane of corresponding pole pair symmetry (7) have equal number of coils and form exciting winding group. In addition, the starts (A) of exciting windings (W) in one group are interconnected, while the ends (E) of exciting windings (W) in the same group are also interconnected. To make the commutation motor (1) operable within the several ranges of rotation speed, the exciting winding groups are actuated by the control unit one by one or all together.

EFFECT: possibility of commutation motor operation within different rotation frequency ranges at minimum losses during operation.

5 cl, 3 dwg