Patent Number: 6,297,593

Title: Boosting transformer for high-frequency heating device

Abstract: A boosting transformer for a high-frequency heating apparatus includes an insulation member, and a primary winding and a secondary winding formed at the insulation member and mutually isolated by the insulation member, each winding having a width and a thickness as measured when the winding is stacked, the width being smaller than the thickness. As such, the boosting transformer can be reduced in height to readily ensure a distance for insulating locations having therebetween a large potential difference from each other in the transformer's internal structure in designing a structure in which the transformer is attached to a high-frequency heating apparatus. Thus the boosting transformer can be attached to the high-frequency heating apparatus at a location less restrictively and such designing can be facilitated.

Inventors: Takashige; Yutaka (Kishiwada, JP), Masuda; Shinichi (Tondabayashi, JP)

Assignee: Sharp Kabushiki Kaisha

International Classification: H01F 19/00 (20060101); H01F 30/10 (20060101); H01F 27/26 (20060101); H01F 19/04 (20060101); H01F 30/06 (20060101); H01F 27/32 (20060101); H05B 6/36 (20060101); H05B 6/66 (20060101); H05B 6/02 (20060101); H01J 025/50 ()

Expiration Date: 10/02/2018