ROTOR FOR SYNCHRONOUS ELECTRIC MACHINE WITHOUT PREDETERMINED POLES (VARIANTS) Russian patent published in 2005 - IPC

FIELD: electric engineering.

SUBSTANCE: rotor has massive core 1 with hollow longitudinal grooves in large tooth 3 and longitudinal grooves 5 with coil winding 6, separated by lesser teeth 4. winding is fixed in grooves through sub-wedge isolation by means of groove wedges, and its frontal portions - through covering sub-bandage isolation by means of bandage rings 11. in the end portion of bandage ring 11, n touch with end portion of groove wedges and teeth, concentrically to cylindrical surface of bandage ring tangential channel 12 is positioned. On one side it is connected to space below bandage ring between frontal portions of coils by longitudinal channel 13, made in covering sub-bandage isolation, on the other side - to space outside the rotor by radial-tangential channel 15 in wedges of hollow grooves, positioned in end portions of large tooth of barrel. Also tangential channel 12 can be positioned in zone of placement of bandage ring 11 on rotor barrel, and longitudinal channel 14 - in lesser teeth of rotor barrel. In upper and lower portions of groove wedges, mounted in middle and end portions of rotor core, transversal slits are made, and in wedges of hollow grooves - slanting ventilation channels.

EFFECT: higher reliability, higher efficiency.

4 cl, 10 dwg