| 摘要 |
PURPOSE:To make it easy to manufacture and reduce the size of a transformer of such a type wherein a flat and square conductor is wound around a winding frame as it is being insulated and a sliding element is brought to contact with the sliding surface of the conductor by such an arrangement wherein 2 sides or 3 sides of the conductor including its side opposing to the winding frame are tightly and closely covered with an insulating member. CONSTITUTION:Two or three sides of a flat square conductor 5 including its side opposing to a winding frame are tightly covered with an insulating member 6 of which thickness is made larger. If the conventional resin coating such as formal enamel is used as the insulating member 6, its thickness cannot be made larger, therefore, resin particles are caused to melt and adhere to the surface of the conductor with such portions of the conductor that are to be exposed naked covered with masks. In this manner, a main winding 7 of which surge resistivity is raised by making the thickness of the member 6 larger is obtained, and this winding is tightly wound around a waiting frame 8. By this arrangement, the manufacture of a transformer becomes very easy and when the winding is wound around an iron core, insulation process is no longer required. |
