Transformer

Abstract

Abstract PURPOSE:To form the transformer, for which a cooling duct is easily manufactured and cost thereof is low, by constituting the cooling duct while heat transfer plates made of a metal are arranged in the longitudinal direction to both side sections of a pipe made of a metal, disposing the heat transfer plates between a metallic sheet and an insulating sheet and setting up the heat transfer plates into winding. CONSTITUTION:Each heat transfer plate 19 mounted to one side section of the pipe 18 is fast stuck to the circumferential surfaces of the metallic sheets 7 under the state in which the plates 19 are curved along the circumferential surfaces extending over the whole circumferential direction of the metallic sheets 7 in winding sections, and each heat transfer plate 19 mounted to the other side section of the pipe 18 is fast stuck to the circumferential surfaces of the insulating sheets 8 under the state in which the plates 19 are curved along the circumferential surfaces extending over the whole circumferential direction of the insulating sheets 8. Both end sections of the pipe 18 are connected to insulating pipes 14. Consequently, the cooling ducts 17 are curved in response to the diameters of the winding sections by the winding tension of the metallic sheets 7 and the insulating sheets 8, and wound among both sheets 7, 8 together with both sheets 7, 8 under fast stuck states. Accordingly, the cooling ducts 17 and both sheets 7, 8 are fixed positively by mutual frictional force, and have a large cooling effect to winding.

Inventors

• 👤 Shinya Ikeda
• 👤 池田　信也

Bibliographic Details