Patent ID: 7626478
Filing Date: 2009-12-01
Classification: H01F

Abstract:
1. A multilayer aligned-winding coil, formed by winding, in alignment, a wire of wide width in the form of a multilayer tube, each layer having an obliquely crossing winding part extending obliquely with respect to a direction, which extends along a cross-section of the tube substantially perpendicular to a longitudinal axis thereof, in one continuous partial angular region of a virtual endless ring defined by the cross-section of the tube, and a transverse winding part extending transversely along the cross-section in an other partial angular region of the virtual endless ring, said multilayer aligned-winding coil including a plural pairs of consecutively superposed two layers meeting below-mentioned two conditions (1) and (2), (1) a first row of winding portion including a first transverse winding part having a progressively riding transverse winding part riding progressively on a last row of the obliquely crossing winding part of a lower layer of said two layers to reach from the lower layer to an upper layer situated thereover by one layer, and (2) a second row of winding portion including a riding and obliquely crossing winding part extending to obliquely cross from a riding start region, of said progressively riding transverse winding part, where the riding thereof on the obliquely crossing winding part is started, across a progressive riding region of sad progressively riding transverse winding part superposing at least partially on the obliquely crossing winding part, and descending at an extended end on the obliquely crossing winding part of the lower layer, said multilayer aligned-winding coil further comprising at least two pairs of said two layers among said plural pairs of said two layers including the riding and obliquely crossing winding parts of the second rows of winding portions having ride-over region parts obliquely riding over the progressively riding regions of the progressively riding transverse winding parts at mutually different angular regions of the endless ring.