Molded coil structure

摘要

An economical and light-weight molded coil structure wherein sheet-form electrical insulator layers containing a thermosetting resin are wrapped around the inner and outer peripheries of a coil to function as a casting mold, and end-enclosing resin layers are applied to the both end faces respectively of the coil not covered with the sheet-form insulator layers. A gas is charged to be sealed in the coil.