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US 2014/0152415 A1Published application
Winding structure, coil winding, coil part, and coil winding manufacturing method
AssigneeSumida Corporation
InventorHiroshi KAWASHIMA
Life of this patent
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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.
Claims11
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 and another end side continuing to the first winding part on is 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 and another end side continuing to the second winding part on another side in an axial direction of the second winding part, and
- 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.
7 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 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;
- a part to be connecting wire forming step of forming, after the first winding step and before the second winding step, a part to be connecting wire having 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 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 an axial direction of the second winding part,
- a twisted portion forming step of twisting, by approximately 180 degrees in total, at least one of the first coupling portion and the second coupling portion after the part to be connecting wire forming step;
- and
- a connecting wire part forming step of bending a boundary portion between the first coupling portion and the first winding part and bending a boundary portion between the second coupling portion and the second winding part, to thereby form a connecting wire part from the part to be connecting wire.
3 more elements
Dependencies are inferred from the claim text.