Manufacture of wound-core type transformer

Abstract

Abstract PURPOSE:To enable to mass-produce a wound-core type transformer in extremely high efficiency by a method wherein an auxiliary core, on which a belt steel same as a wound core was wound around, is used. CONSTITUTION:Two kinds of wound cores of the prescribed thickness is formed by annularly winding the belt steel which was formed by cutting an electromagnetic steel plate into the prescribed width, two wound cores 4 of one kind is formed, and then an auxiliary core 6 of other kind is formed. On the cross sectional area of the wound core 4 opposing each other and located between wound layer surface, two auxiliary cores 6 are interposed and arranged, and before the wound layer surface of the auxiliary cores 6 and the wound layer surface of the wound cores 4 are orthogonally joined together and fixed, a primary and a secondary coils are formed by performing a winding work, and they are fixed and formed in one body in-between the wound cores 4 through the intermediary of the auxiliary core 6. Through these procedures, the wound-core type transistor can be mass-produced in extremely high efficiency.

Inventors

• 👤 Yoshio Morimura
• 👤 森村　良夫

Bibliographic Details