Examination of Coil Arrangement for Higher Quality Heating of the Induction Heating Cooker

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  • ＩＨ調理器の更なる高品質加熱のためのコイル配置設計に関する検討
  • IH チョウリキ ノ サラナル コウヒンシツ カネツ ノ タメ ノ コイル ハイチ セッケイ ニ カンスル ケントウ

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Abstract

This paper proposes effective and practical design method of higher quality heating for induction-heating cooker. The IH cooker which has the simple pancake-shaped coil arrangement produces slightly nonuniform temperature distribution along the heating plate. The object of this research is to achieve the better heating performance by adjusting the arrangement of the coil. Easiness of coil winding is added to the evaluation basis. Eddy current analysis is made by the finite element method for calculating the heat distribution of the heating plate. After this, heat transfer analysis is made by the finite element method for calculating the temperature distribution of the heating plate. Multi-objective genetic algorithm is employed for obtaining the optimum arrangement of the coil. The two objectives that mean the uniformity of temperature distribution and the easiness of coil winding are both evaluated. By using the proposed method, we could obtain the expected coil arrangement easily. The temperature distribution approaches closer to uniform distribution by using the obtained coil arrangement which is not difficult to wind.

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