Patent ID: 9362809
Filing Date: 2016-06-07
CPC Classification: H02K,Y10T

Claim Text:
1. A stator for an electric rotary machine, the stator including: a stator core having plural slots; segmented coils of plural phases; a pair of base plates provided at both ends of the stator core; and insulation material, wherein the segmented coils have wherein the base plates are made of a non-magnetic material, and include plural grooves that are formed on surfaces of the base plates facing axial end faces of the stator core, wherein the coil bars are respectively disposed in the slots in the stator core, and each of the coil bars have a radially outer coil bar and a radially inner coil bar, wherein the insulation material comprises the radially outer coil bar and the radially inner coil bar, wherein the radially outer coil bar and the radially inner coil bar are integrally covered by the insulation material, and wherein the insulation material is interposed between the radially outer coil and the radially inner coil bar, wherein the connection coils are disposed in the plural grooves formed on the surfaces of the base plates so that the connection coils of the same phase are connected together while the connection coils of the different phases are insulated from each other, wherein insulation sheets are provided between the axial end faces of the stator core and the surfaces of the base plates, wherein each of the insulation sheets define a plurality of holes which are penetrated by the coil bars, wherein the stator core and the coil bars make up a stator core assembly and the base plates and the connection coils make up base plate assemblies, so that the stator is made up of the stator core assembly and the base plate assemblies which are disposed at both ends of the stator core assembly, and wherein the radially outer coil bar and the radially inner coil bar of each of the coil bars are configured to connect the base plate assemblies disposed at both ends of the stator core assembly to the stator core assembly.