| 摘要 |
PURPOSE:To form a transformer of excellent efficiency by a method wherein a ?-shaped iron piece having a projection in one end and an indent in the other is laminated, /and two laminate components thus formed are fitted to each other to form a square laminate, while a transformed quadrilateral laminate core having a coil winding in the internal space is provided. CONSTITUTION:One end of each of the upper and lower end sides 2 and 3 of a ?-shaped iron piece 1 is formed in an indented shape 4, and the other end in a projecting shape 5, while the inner edge 7 of the central portion of the longitudinal side 6 thereof is formed in an inward-curved arc shape. for instance. A core component 17 is prepared by laminating the iron piece 1 thus formed. One square laminate core 8 is constructed by fitting two core components to each other. A core 9 ' prepared by laminating a necessary number of transformed quadrilateral iron pieces 9 each having an outward-curved-arc-shaped surface 7 ' fitted to the internal space of the core 8 is put in a bobbin 10, a coil 11 is constructed of a conductor, and the coil 11 thus constructed is fitted in the core 8, so as to construct a transformer. The joint of the core 8 is not separated at all since it is secured by the fitting of the indent and the projection to each other, and also a wide contact surface of the cores 8 and 9' formed by the arc shape brings about a large electric effect.
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