Electromagnetic induction heating type electric cooker

Abstract

The invention provides an electrmagnetic induction heating-type rice cooker which can flexiblely taking the advantage of a nonconductive material as a material of inner pan, simultaneously avoiding the restricting of a heating force setting. In an IH rice cooker, an inner pan body 11 is formed by ceramic material, synchronously a ceramic coil support 25 is formed as the region of heat generating layer 14A, 14B which has large thermal value facing a heat generating layer 14 on an inner wall 22 of a container 21 for accommodating the inner pan 10. According to the structure, transmission of heat emitting from the heat generating layer 14A, 14B to a rice cooker body 20 is blocked by the coil support 25, thereby, the adverse influence is prevented, which is caused by heat passing to parts, etc., provided in the rice cooker body 20. The invention can also improve the heat resistance of part of the inner wall 22 oppositing to the heat generating layer 14A, 14B and can prevent fusion or deformation, and the like, of the inner wall 22 caused by heat.

Description

technical field [0001] The invention relates to an electromagnetic induction heating electric rice cooker. Background technique [0002] The electromagnetic induction heating cooker (IH cooker) generates magnetic force lines by energizing the ring-shaped heating coil, and the electromagnetic induction makes the bottom of the pot flow through an eddy current, causing the pot to heat up, thereby heating the food. Therefore, in order to cook using such an IH cooker, it is usually necessary to use a conductive metal pan. However, in terms of cooking, it is indeed better to use a pot made of a non-conductive material such as a casserole, in terms of flavor or heat retention. [0003] Therefore, as a casserole that can be used in an IH cooker, for example, there is one described in Patent Document 1. The scheme is to form a heating layer (thin film metal film layer) at the bottom of the casserole with a conductive material, and the heating layer generates heat for heating. [0...

AI Technical Summary

Problems solved by technology

[0007] However, if the inner pot of a non-conductive material with poor thermal conductivity such as ceramics is used, the heat generated by the heating layer is difficult to radiate to the ceramics, and more heat is radiated to the body of the rice cooker.

Therefore, it may have a bad influence on the electric parts for controlling the coil built in the rice cooker body.

If the inner wall of the rice cooker body is made of a material with low heat resistance such as plastic, it may also have a bad influence on the inner wall itself.

If these problems are to be avoided, the setting of the heating power of the rice cooker will be restricted.

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