Motor and/or generator operating according to the reluctance principle
First Claim
1. An arrangement for use in a motor or generator, operating according to a reluctance principle, comprising:
- (a) a stator,(i) said stator having a plurality of sector stators, said sector stators being distributed around an outer circumference of a rotor and being magnetically, mutually separated, each of said sector stators including;
(A) a first toothed sector stator element and a second toothed sector stator element, said first toothed stator element being arranged behind said second toothed sector stator element at an axial distance from said second toothed stator element thereby forming an axial spacing chamber, said first and second toothed sector stator elements having common power windings, said first toothed sector stator element ending in a first radially projecting pole shank and said second toothed sector stator element ending in a second radially projecting pole shank, said first radially projecting pole shank being wrapped inside a first excitation winding adapted to excite said first radially projecting pole shank in a first direction, and said second radially projecting pole shank being wrapped inside a second excitation winding adapted to excite said second radially projecting pole shank in a second direction being opposite to said first direction; and
(b) a permanent magnet arrangement, said permanent magnet arrangement being axially magnetized perpendicular to the polarity of the winding excitations in said sector stator and opposite to a stray field of an exciting field generated by said first and second excitation windings, said permanent magnet arrangement having a yoke arch portion and a second portion, said second portion covering the stator teeth of said first and second toothed sector stator elements, and being provided in said axial spacing chamber between said first and second toothed sector stator elements.
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Accused Products
Abstract
In a stator-excited synchronous machine with laminated sector stator elements (SS1 or SS2), which are arranged one behind another at an axial distance and are winding-excited by in each case one excitation winding part (EW1 or EW2) of opposite polarity, the operating efficiency can be increased with low outlay when a permanent magnet arrangement (M) having a magnetization opposing the winding excitation in the sector stator elements is provided in the axial spacing chamber between the sector stator elements (SS1 or SS2); in order to lock the position of the magnet arrangement (M), the facing laminations of the magnet arrangement (M) have bent-away tongues (Z) gripping radially from below.
30 Citations
16 Claims
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1. An arrangement for use in a motor or generator, operating according to a reluctance principle, comprising:
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(a) a stator, (i) said stator having a plurality of sector stators, said sector stators being distributed around an outer circumference of a rotor and being magnetically, mutually separated, each of said sector stators including; (A) a first toothed sector stator element and a second toothed sector stator element, said first toothed stator element being arranged behind said second toothed sector stator element at an axial distance from said second toothed stator element thereby forming an axial spacing chamber, said first and second toothed sector stator elements having common power windings, said first toothed sector stator element ending in a first radially projecting pole shank and said second toothed sector stator element ending in a second radially projecting pole shank, said first radially projecting pole shank being wrapped inside a first excitation winding adapted to excite said first radially projecting pole shank in a first direction, and said second radially projecting pole shank being wrapped inside a second excitation winding adapted to excite said second radially projecting pole shank in a second direction being opposite to said first direction; and (b) a permanent magnet arrangement, said permanent magnet arrangement being axially magnetized perpendicular to the polarity of the winding excitations in said sector stator and opposite to a stray field of an exciting field generated by said first and second excitation windings, said permanent magnet arrangement having a yoke arch portion and a second portion, said second portion covering the stator teeth of said first and second toothed sector stator elements, and being provided in said axial spacing chamber between said first and second toothed sector stator elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification