Novel thin heating coil structure with reduced copper loss for high frequency induction cookers

M. Hataya, Y. Oka, Kazuhiro Umetani, Eiji Hiraki, T. Hirokawa, M. Imai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Litz wire has been widely utilized for heating coils of high frequency induction cookers. However, these coils often suffer from large winding height due to low space factor of Litz wire. Certainly, rectangular wire may reduce the winding height of the coil owing to its high space factor. However, the rectangular wire tends to suffer from large copper loss caused by the skin effect and the proximity effect. In the conventional coil structure of the rectangular wire, these effects cause concentrated AC current distribution, which leads to excessive copper loss. This paper addresses this issue by proposing a novel heating coil structure of the rectangular wire that can homogenize the AC current distribution. This paper also presents the simulation results that successfully verified the effectiveness of the proposed structure.

Original languageEnglish
Title of host publication19th International Conference on Electrical Machines and Systems, ICEMS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9784886860989
Publication statusPublished - Jan 30 2017
Event19th International Conference on Electrical Machines and Systems, ICEMS 2016 - Chiba, Japan
Duration: Nov 13 2016Nov 16 2016

Other

Other19th International Conference on Electrical Machines and Systems, ICEMS 2016
CountryJapan
CityChiba
Period11/13/1611/16/16

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Keywords

  • ac resistance
  • induction heating
  • proximity effect
  • rectangular wire

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Hataya, M., Oka, Y., Umetani, K., Hiraki, E., Hirokawa, T., & Imai, M. (2017). Novel thin heating coil structure with reduced copper loss for high frequency induction cookers. In 19th International Conference on Electrical Machines and Systems, ICEMS 2016 [7837237] Institute of Electrical and Electronics Engineers Inc..