Patent ID: 9183985
Filing Date: 2015-11-10
Classification: F01P,F04D,F16D,H01F,H02K,Y10T

Abstract:
1. A method for winding a coil on an object, wherein the coil comprises a first coil and a second coil, cross-sectional area of the second coil being different from cross-sectional area of the first coil, the method comprising: winding the first coil on an exterior circumference of the object or the second coil such that cross-sectional centers of a plurality of first coils form a row; and winding the second coil on the first coil such that cross-sectional centers of a plurality of second coils form a row, wherein winding the first coil and winding the second coil are repeated by predetermined numbers such that a plurality of rows of the first coil and the second coil are wound on the object or the second coil, and wherein the cross-sectional centers of the first coil and the second coil are disposed to form a zigzag shape with each other.