Patent ID: 9208940
Filing Date: 2015-12-08
Classification: H01F

Abstract:
1. A coil winding, comprising: a first winding part formed by winding a flat wire; a second winding part formed by winding the flat wire continuing to the first winding part, the second winding part being wound in a same winding direction as a winding direction of the first winding part; and a connecting wire part located between the first winding part and the second winding part to connect the winding parts, wherein the connecting wire part has: an interval defining portion defining an interval between the first winding part and the second winding part; a first coupling portion with one end side continuing to the interval defining portion and another end side continuing to the first winding part on one side in a first axial that is an axial direction of the first winding part; and a second coupling portion with one end side continuing to the interval defining portion and another end side continuing to the second winding part on another side in a second axial that is an axial direction of the second winding part, at least one of the first coupling portion and the second coupling portion becomes a twisted portion by twisting by approximately 180 degrees in total, and a boundary portion between the first coupling portion and the first winding part is bent so that the first coupling portion extends in the first axial direction to depart from the first winding part, and a boundary portion between the second coupling portion and the second winding part is bent so that the second coupling portion extends in the second axial direction to depart from the second winding part.