STATOR CORE OF COLLECTOR ELECTRIC MACHINE Russian patent published in 2007 - IPC H02K1/14 H02K23/42 

FIELD: electric engineering, namely - features of structural realization of stator cores of collector electric machines.

SUBSTANCE: in accordance to the invention, core of stator of collector electric machine has narrowed parts of magnetic conductor in middle sections of main poles, where areas of normal longitudinal cross-sections are made based on condition where S_c - area of normal longitudinal cross-sections of narrowed sections in middle parts of main poles, cm²; S_y.s - average area of normal longitudinal cross-sections of yoke parts of stator, cm²; δ^* _c=δ_c/δ_c.max - relative length of narrowing sections in middle parts of main poles; δ_c - length of narrowing sections in middle parts of main poles, cm; δ_c.max=(b_n-2·h_y.s) - maximal length of narrowing sections in middle parts of main poles, cm; b_n - width of pole core, cm; h_y.s - average height of yoke parts of stator, cm; D_c - maximal diameter of circle, inscribed into stator recess, m.

EFFECT: reduction of magnetic field of anchor reaction.

12 dwg, 1 tbl