rice cooker

Abstract

The invention provides an electric rice cooker and a producing method thereof, and aims to improve functionality and quality of products. The electric rice cooker comprises a top heating stainless steel plate, a pressure response working unit and a control frame. The top heating stainless steel plate is made of material of stainless steel and is combined with a part below a cover; the edge of the top heating stainless steel plate is bent integrally to form an inner cylinder gasket combining part and a locking ring combining part which are used for sealing the upper portion of the inner cylinder. The control frame is combined with one side of the upper surface of the top heating stainless steel plate, and a mounting part is formed for fixing and supporting the pressure response working unit.

Description

technical field [0001] The present invention relates to an electric rice cooker, and more particularly, to an electric rice cooker in which corrosion resistance and productivity are remarkably improved by improving the structure of a top heating plate. Background technique [0002] Generally, a rice cooker is an appliance for cooking food stored in an inner pot, and cooks food by sealing the upper portion of the inner pot to maintain a high temperature and high pressure inside. [0003] figure 1 It is a cross-sectional view showing a conventional rice cooker, figure 2 It is a perspective view showing a top heating plate combined with a pressure-responsive working unit of a conventional rice cooker, image 3 It is a cross-sectional view showing a top heating plate combined with a pressure handling unit of a conventional rice cooker. [0004] Such as Figure 1 to Figure 3 As shown, the conventional rice cooker 1 has a main body that accommodates a cooking object inside to...

AI Technical Summary

Problems solved by technology

[0007] However, the top heating plate 3 made of aluminum is easily corroded when exposed to high-temperature and high-pressure steam. When the corrosion-resistant surface treatment layer falls off, the corresponding part will be rapidly oxidized

Thus, although there is an auxiliary unit such as a cooker cover made of stainless steel attached to the lower surface of the above-mentioned top heating plate 3, there is the following problem: it is difficult to prevent the surface treatment coating from being produced during the disassembly process of the above-mentioned cooker cover. Damage caused by scratches, etc., the number of parts increases and the convenience, productivity and economy of use decrease

[0008] In addition, a through hole for installing a pressure regulating unit for adjusting the internal pressure of the inner tank 9 is formed on the above-mentioned top heating plate 3. Since the structure of the inner peripheral surface of this through-hole is difficult to carry out surface treatment, it is difficult to perform surface treatment at high temperatures. , During the process of high-pressure steam ejection, corrosion is prone to occur on the edge of the inner peripheral surface of the above-mentioned through hole

Moreover, if the degree of corrosion is severe, the above-mentioned through hole may be blocked to cause the malfunction of the above-mentioned pressure adjustment unit, and there is a disadvantage of causing serious problems in safety.

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