Patent ID: 7205689

Claim:
An electric motor having a multiphase winding with a neutral connection, comprising a rotor ( 18 ) and a stator ( 10 ), said stator having a stack ( 16 ) of slotted essentially planar laminations defining a plurality of slots that are separated by teeth, said teeth having free ends ( 153 ); partial windings ( 17 ) of said multiphase winding being arranged on said teeth; said laminations having at least one end face on which are arranged a plurality of jumper rings ( 11 , 12 , 13 ) and a ring ( 14 ) forming said neutral connection, said jumper rings and said ring ( 14 ) forming the neutral connection being made of flat conducting metal, extending in parallel with the laminations, and being insulated from the laminations and from each other, said ring forming said neutral connection ( 14 ) being formed with a plurality of radial extensions ( 141 ) which extend along predetermined stator teeth ( 151 ) substantially to the free ends ( 153 ) thereof and inside of the partial winding on the respective tooth, are insulated from said teeth, and are connected at their free ends ( 142 ) to one end ( 172 ) of a partial winding formed on a respective tooth.