Aligned multilayer wound coil

#The present invention relates to an aligned multilayer wound coil comprising not less than two winding layers, the winding layers having insulated electric wires, respectively, so as to be wound around in alignment, an apparatus for manufacturing the aligned multilayer wound coil, an electrical equipment and a non-inductive resistance, with the aligned multilayer wound coil applied thereto.

#A large number of coils, each thereof generally called a magnet wire, formed by winding an insulated electric wire, have thus far been used in a variety of electrical equipment. Those coils are for various applications including use in a transformer for generating a high voltage. For the generation of a high voltage, the number of windings on the secondary winding side of a transformer is increased. If a high potential difference occurs between adjacent insulated electric wires within the secondary wiring, the potential difference will exceed a dielectric breakdown voltage to thereby cause short circuiting, the so-called rare short, thereby damaging the equipment.

#In order to avoid such an event, a winding frame 500 was partitioned into a number of parts with an insulator interposed therebetween in the past such that sidewalls 510, and intermediate walls 520 are provided by stages, increasing the number of the intermediate walls 520 according to an application voltage, as shown in FIG. 13, thereby applying partial winding to the winding frame 500 with an insulated electric wire 540. However, since the winding frame 500 was separated by the insulator, it was difficult to achieve reduction in size, resulting in a high cost. That is, the coil became larger in volume, and was unsuitable for equipment of which miniaturization is required. Furthermore, for use in a HID (High Intensity Discharge Lamp), the demand for which is increasing because it is high in directivity and is capable of brightly and clearly illuminating a target away at a distance, the coil needs to have a large conductor cross sectional area since a high voltage temporarily occurs upon the lighting of a HID, and a large current flows after the lighting while miniaturization is required, so that a flat type electric wire has been often used. The flat-type electric wire, however, has had problems of a high cost and poor workability.

#FIG. 1 is a perspective view of a parallel-connected aligned multilayer wound coil according to one embodiment of the invention;

#FIG. 2 is a view showing three planes of a winding frame for the aligned multilayer wound coil according to one embodiment of the invention;

#FIG. 3 is a conceptual view showing operation of an apparatus for manufacturing the aligned multilayer wound coil according to one embodiment of the invention;

#10 insulated electric wires 111, 113 odd number layers of aligned wound coils 112, 114 even number layers of aligned wound coils 70 winding frame for the aligned multilayer wound coil

#Embodiments of the invention are described hereinafter with reference to the accompanying drawings. It is to be pointed out, however, that those are only for illustrative purposes, and that the technical scope of the invention is not limited thereto.

#A first embodiment of the invention is concerned with a parallel-connected aligned multilayer wound coil. FIG. 1 is a perspective view of the parallel-connected aligned multilayer wound coil according to the first embodiment of the invention. FIG. 2 is a view showing three planes of a winding frame for the aligned multilayer wound coil according to one embodiment of the invention. FIG. 3 is a conceptual view showing operation of an apparatus for manufacturing the aligned multilayer wound coil.