Patent ID: 9306421
Filing Date: 2016-04-05
CPC Classification: B22F,C22C,H02K

Claim Text:
1. A stator core for use in a motor for a vehicle, the core formed from metallic powder and comprising an outer part disposed at an inside of the motor, an inner part disposed at an inside of the motor, a winding part which connects the outer part and the inner part, wherein the winding part has rounded corners and a height less than a height of the inner part, and a connection part connecting the winding part and the inner part, the connection part extending obliquely between the winding part and the inner part, wherein the core is formed from metallic powder comprising pure iron particle having a size of about 50˜200 μm, and a phosphate coating having a thickness of grater than zero and up to 100 nm thereon, wherein the core has a density of about 7˜g/cc, and a partial density difference is greater than 0 g/cc and less than about 0.05 g/cc.