Concentrated winding coil and method of manufacturing same

Abstract

A concentrated winding coil includes a plurality of coil layers each of which comprises a plurality of wire turns wound in alignment winding; and a bobbin including an inner flange, an outer flange and a bobbin body on which the wire is wound, wherein: each of the coil layers includes a turn shift portion where the wire is shifted from an n-th turn to an (n+1)-th turn; the turn shift portion is located only on a side of a coil end section of the coil; and the bobbin body has no guide grooves. A method of manufacturing the concentrated winding coil includes steps of: winding the wire on the bobbin; and pressing the wire by a wire guiding/holding member toward the inner flange or toward the outer flange.

What is claimed is: 
     
         1 . A method of manufacturing a concentrated winding coil in which a wire is wound on a bobbin having an inner flange, an outer flange and a bobbin body, comprising steps of:
 winding the wire on the bobbin; and   pressing the wire by a wire guiding/holding member toward the inner flange or toward the outer flange.   
     
     
         2 . The method of manufacturing a concentrated winding coil according to  claim 1 , wherein:
 during the step of winding the wire on the bobbin, the wire guiding/holding member stands ready at a position away from the wire.   
     
     
         3 . The method of manufacturing a concentrated winding coil according to  claim 1 , further comprising a step of:
 pressing the wire toward the bobbin body by the wire guiding/holding member.   
     
     
         4 . The method of manufacturing a concentrated winding coil according to  claim 1 , wherein:
 the wire is a round wire or a rectangular wire.   
     
     
         5 . A method of manufacturing a concentrated winding coil in which a wire is wound on a bobbin,
 wherein a position of the wire is adjusted inside the bobbin by a wire guiding/holding member.   
     
     
         6 . The method of manufacturing a concentrated winding coil according to  claim 5 , wherein:
 the wire is a round wire or a rectangular wire.   
     
     
         7 . The method of manufacturing a concentrated winding coil according to  claim 5 , wherein:
 the bobbin comprises an inner flange, an outer flange and a bobbin body; and the “inside the bobbin” means a space around the bobbin body and between the inner flange and the outer one.