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US 2014/0152414 A1Published application
Winding structure, coil winding, coil part, and coil winding manufacturing method
AssigneeSumida Corporation
InventorHiroshi KAWASHIMA
Life of this patent
Estimating the term…
Abstract
There is provided a winding structure, a coil winding, a coil part, and a coil winding manufacturing method, which are capable of preventing occurrence of an extra space due to existence of a connecting wire part when two winding parts and a connecting wire part connecting the winding parts are formed.
Claims10
A winding structure, 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 part to be connecting wire located between the first winding part and the second winding part to connect the winding parts, wherein
- the part to be connecting wire 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 by forming an edgewise bending and another end side continuing to the first winding part on one side in an axial direction of the first winding part;
- and
- a second coupling portion with one end side continuing to the interval defining portion by forming an edgewise bending and another end side continuing to the second winding part on another side in an axial direction of the second winding part.
6 more elements
A coil winding manufacturing method for forming a coil winding from a flat wire, the method comprising:
- a first winding step of winding the flat wire to form a first winding part;
- a part to be connecting wire forming step of forming a part to be connecting wire continuing to the first winding part;
- a second winding step of winding the flat wire in a same winding direction as a winding direction of the first winding part to form a second winding part continuing to the part to be connecting wire;
- and
- a connecting wire part forming step of forming a connecting wire part from the part to be connecting wire, wherein
- the part to be connecting wire forming step has:
- a first feeding step of feeding, after the first winding step and before the second winding step, the flat wire farther than a bending part to provide a first fed portion continuing to the first winding part;
- a first bending step of performing, at the bending part after the first feeding step, edgewise bending of the flat wire in the same direction as the winding direction of the first winding part to form a first coupling portion continuing to the first winding part;
- a second feeding step of feeding, after the first bending step, the flat wire to provide a second fed portion;
- a second bending step of performing, at the bending part after the second feeding step, edgewise bending of the flat wire in the same direction as is the winding direction of the first winding part to form an interval defining portion continuing to the first coupling portion and defining an interval between the first winding part and the second winding part;
- and
- a third feeding step of feeding, after the second bending step, the flat wire farther than the bending part to provide a third fed portion continuing to the interval defining portion and the second winding part.
9 more elements
Dependencies are inferred from the claim text.