ELECTRIC MACHINE Russian patent published in 1995 - IPC

FIELD: immersion electric machines. SUBSTANCE: device has housing 1 against which stator core is pressed. Faces of housing 1 have protection disks 3 which are made from aluminum-magnum-zinc alloy. Slots of stator core 2 have n-phase winding 4 which is made from single piece of wire and is connected in star connection. Rotor 5 with shaft 6 and bulges are made as whole. Active part of rotor 5 has permanent magnets 10 which are shaped as pieces of cylindrical tube. Magnets are positioned between bulges and their side walls are slanted. Number of magnets equals to number of poles and length of magnets equals to length of stator core. Sleeve 11 which is fixed by fastening rings 12 is mounted on segments with bulges. Housing 1, sleeve 11, bearing shields 13 and stator core 2 are made from materials excluding possibility of direct electric contact with large difference of electrode potentials. EFFECT: increased field of application, increased reliability, increased service life, decreased weight and size. 4 dwg