Electric direct current rotating machine
AssigneePortescap
InventorMarc Heyraud
Life of this patent
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Abstract
The rotor of an electric direct current rotating machine has at least one winding which cooperates with a stationary magnetic circuit. The winding is formed of several sections connected in series. The respective opposite ends of each section are connected to adjacent segments of a commutator associated with the winding. The sections are arranged on the rotor in such a manner that portions of different adjacent sections are disposed concurrently in the commutation zone so that currents flow through these portions in opposite directions. The invention finds application in particular to direct current motors and to motor-generators.
Claims11
In an electric rotating machine having a stationary magnetic circuit and a rotor bearing at least one winding, said winding comprising a plurality of sections connected in series, each said section being formed of at least two series-connected coil elements;
- means for connecting the opposite ends of a section to adjacent segments of a commutator associated with said winding;
- the winding sections being arranged on the rotor such that at least one of said coil elements of one section and at least one of said coil elements of a different section are rotated to be disposed concurrently in the commutation zone so that currents flow through the respective coil elements of said different sections in opposite directions.
An electric direct current rotating machine having a stationary magnetic circuit, a rotor having at least one winding thereon and a commutator associated with said winding and comprised of a plurality of commutator segments, said winding comprising a plurality of sections of coil elements, said coil elements in a section being connected in series and said sections being connected in series, at least one coil element of one section being in superposed relation with at least one coil element of an adjacent section;
- and connecting points located at the opposite ends of each section for connecting said section to adjacent commutator segments, the number of sections of said winding being equal to the number of commutator segments, such that currents of opposite direction flow through the superposed coil elements of adjacent sections when said rotor rotates to dispose said superposed coil elements of said adjacent sections concurrently in the commutation zone.
Dependencies are inferred from the claim text.