Inner pot of electric pressure pot

Abstract

The present invention relates to an inner cooker of Electric pressure cooker which is characterized in that the inner cooker comprises an inner part with container shape and made of non-metal material with the upper end provided with a hanging part composed of protrusion of groove; an outer part which is made of metal material and formed on the part outside the inner surface of the inner part to hang with the hanging part; and a magnet body part formed by magnet body and smelting-ejected on the outer surface of the outer part.

Description

technical field [0001] The present invention relates to an inner pot of a voltage cooker. More specifically, the present invention relates to an inner pot of a voltage cooker, which can improve gaps or gaps caused by different thermal expansion coefficients due to different materials used for the inner and outer parts of the inner pot. Fault. Background technique [0002] figure 1 It is a diagram showing an example of the cross-section of the inner pot of a conventional voltage cooker. The inner pot includes: a container-shaped inner portion 10 containing stone, carbon, and jade materials; and the magnetic body part 30, which is sprayed on the outer surface of the outer part 20 in order to conduct conduction heating to the inner pot. In addition, the surface of the exterior 20 exposed to the air includes a coating portion 40 for preventing oxidation. [0003] In addition, for the inner pot of the existing voltage cooker, in order to prevent the oxidation of the aluminum c...

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Problems solved by technology

[0003] In addition, for the inner pot of the existing voltage cooker, in order to prevent the oxidation of the aluminum constituting the exterior 20, after the casting process of the exterior 20, anodizing is performed to form an oxide film, but there are the following problems: At this time, the stone or carbon material constituting the interior 10 absorbs oxygen and releases it when cooking, which is quite harmful to the human body; in addition, if the anodic oxidation treatment is performed before the magnetic body part 30 is fused, the exterior 20 formed of aluminum and the molten The bondability of the sprayed magnetic body part 30 is reduced, and if the anodizing treatment is performed after spraying, there is a problem that the sprayed magnetic body part 30 peels off.

[0004] figure 2 and image 3 It is a diagram showing an example of a partial section of the inner pot of a conventional voltage cooker. Since it is difficult to accurately form the coating part 40 on the boundary surface between the inside 10 and the outside 20, it can only be partially coated on the inside 10.

In this case, the following problems exist: figure 2 Shown, when cooking or when forming coating portion 40, there is high-temperature heating, then because of the thermal expansion coefficient difference of the material that forms outer 20 and the material that forms inner 10, gap (G) is produced between inner 10 and outer 20. ), or if image 3 As shown, a fault (S) occurs, and the coating part 40 is damaged or peeled off.

Moreover, if the coating part 40 is damaged or peeled off from the exterior 20, the exterior 20 will be exposed to the air and corroded.

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