Communicator Motor Having Number of Field Winding Groups
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorsRainer Schach, Jorg Skrippek
Life of this patent
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Abstract
A commutator motor, which has a series excitation or shunt excitation and which, in particular, is suited for use as a drive motor for a washing drum of a laundry treatment device. The stator of a commutator motor of this type has a number of field winding groups with field windings that are arranged symmetric to the plane of symmetry of the pair of poles and whose starting points and end points are connected to one another. In order to operate the commutator motor in a number of rotational speed ranges, the field winding groups are individually or jointly activated by a control device.
Claims6
1-5. (canceled)
A commutator motor with at least one of series excitation shunt excitation for a drive motor of washing machine, the motor comprising a stator having an even number of poles, on each of which a plurality of field windings which each have a starting point and an end point are arranged one above the other, with a field winding of one pole and the field winding which is situated opposite the field winding symmetrically with respect to the respective plane of symmetry of the pole pair having an identical number of turns and forming one field winding group, wherein the starting points of the field windings of one field winding group are connected to one another, and the end points of the field windings of the same field winding group are connected to one another.
Dependencies are inferred from the claim text.