ROTOR OF HIGH-SPEED ELECTRIC MACHINE Russian patent published in 2006 - IPC H02K1/27 H02K1/28 H02K21/16 

FIELD: electric engineering and electric-mechanical engineering, in particular - constructions of rotors for high-speed electric machines.

SUBSTANCE: rotor of high-speed electric machine contains yoke 1 with permanent magnets 2 positioned thereupon, on which polar end pieces 3 are mounted. Yoke 1 is made in form of evenly alternating magnetic and non-magnetic circular plates 4,5. on external and internal surface of polar end pieces 3 concentrically to rotor axis internal and external circular grooves are made. Internal circular grooves are mounted on external rings 6, connected by links to non-magnetic plates 5. by selecting relation between number of external and internal circular grooves it is possible to provide for optimal thickness of measuring portion of yoke 1 and its radial size. Due to decreased loads of polar end pieces 3 and bandage 7, achieved by making circular and linear slit grooves 10 on external surface of polar end pieces, mechanical durability and operational reliability of device are increased.

EFFECT: improved reliability of presented rotor by increasing its mechanical durability and manufacturability.

5 cl, 4 dwg