KR100812176B1 - Inner pot in electric pressure cooker - Google Patents

Abstract

An inner pot for an electric pressure cooker is provided to minimize loss of heat generated from a function plate by forming a stainless steel plate for preventing heat supplied into the inner pot from discharging to the outside. An inner pot for an electric pressure cooker comprises a stainless steel plate(110), at least one function plate for increasing heat radiation and transmission(120), a recessed part(200), a transparent coating layer(210), and plural dimples. The stainless steel plate is formed at the periphery to prevent loss of heat transferred inside. The at least one function plate for increasing heat radiation and transmission is formed inside of the stainless steel plate. The recessed part installed at the stainless steel plate exposes the function plate to the outside to be discriminated. The transparent coating layer is formed at the recessed part to prevent discoloration and corrosion of the function plate exposed to the outside by the recessed part. The plural dimples shaped in three-dimensional type are placed at the outside of the stainless steel plate to increase heat transfer area.

Description

Inner pot for electric pressure cooker {Inner pot in electric pressure cooker}

1 is a perspective view showing the inner pot for an electric pressure cooker according to the prior art,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a perspective view showing another embodiment of the inner pot for an electric pressure cooker according to the prior art,

4 is another cross-sectional view taken along line B-B of FIG. 3,

5 is a perspective view showing an inner pot for an electric pressure cooker according to the present invention;

6 is a partial cross-sectional view showing another embodiment of the inner pot for an electric pressure cooker according to the present invention;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 5.

Explanation of symbols on the main parts of the drawing

100; Inner pot 110; Stainless steel plate

120; Function plate 130; Aluminum plate

140; Inner coating layer 170; Stud Nut

180; Handle 190; Fastener

200; Lumbar 210; Transparent coating layer

220; Dimple

The present invention relates to an electric pressure cooker, and more particularly, it can prevent corrosion or damage even when used for a long time, can effectively prevent the loss of heat and heat transfer heat, and can have a beauty while giving reliability to consumers. It relates to an inner pot for an electric pressure cooker.

In general, an electric pressure cooker is a device that obtains a heat source using electricity and cooks while keeping the inside of the inner pot at a high pressure using the heat source, and is generally called an induction heating (IH) method. The box is a method of generating an induction current to heat the food while the inner pot generates heat by the generated induction current.

In particular, the inner pot in the electric pressure cooker is closely related to the calorific value according to its shape and material, and the taste, cooking time, and consumption of electricity are directly determined by the calorific value. The research is being actively conducted.

1 is a perspective view showing an inner pot for an electric pressure cooker according to the prior art, Figure 2 is a cross-sectional view taken along the line A-A of FIG.

As shown in Fig. 1 and 2, the inner pot 1 for the electric pressure cooker according to the prior art is made of two plies (Ply), that is, a stainless steel plate (2) and an aluminum plate (3).

This is produced by using the stainless steel plate 2 and the aluminum plate (3) by the press method, it is easy to manufacture and relatively excellent thermal conductivity is widely used.

However, in recent years, the research on the inner pot which is superior in heat generation and excellent thermal conductivity than the inner pot (1) is in progress, and as part of the research on the inner pot, the research of the inner pot for plating a metal having excellent heat generation is currently in progress. .

Specifically, research on the copper plating inner pot is actively underway. Usually, copper is a metal with low resistance, which allows electricity to pass well, but has a problem that is somewhat difficult to generate heat. However, if the copper is processed very thin, there is a property that the electric passage narrows and generates heat strongly. If copper plating is applied to the inner pot using this copper property, it is possible to produce an inner pot having excellent heat generation.

The present applicant has filed a method for manufacturing an inner pot for an electric pressure cooker and its inner pot (Patent Application No. 10-2005-0086792) on September 16, 2005 in relation to the above-described copper plating inner pot technology.

3 and 4, the conventional copper plating inner pot 10 has a disc layer 20 composed of a stainless steel layer 21 and an aluminum layer 22. As shown in FIG.

And on the stainless steel layer 21 side with respect to the disc layer 20 has a transparent coating layer 40 to protect the copper plating layer 30 and the copper plating layer (30).

On the other hand, the aluminum layer 22 has a primer coating layer 50 and a top coating layer 60 to prevent harmful components of the aluminum layer 22 from being discharged and to prevent adsorption of food.

A pair of stud nuts 70 are fixed to the outer surface of the stainless steel layer 21 so as to be symmetrical to each other. Handles 80 are fixed to the stud nuts 70 by fasteners 90.

However, in the conventional copper plating inner pot 10, since the copper plating layer 30 that increases heat generation and heat transfer is formed outside the stainless steel layer 21, the effect of heat generation and heat transfer by the copper plating layer 30 is excellent. There was a problem that the heat generation and the loss of heat transferred heat occurs.

The present invention has been made to solve the above problems, it can prevent corrosion or damage even long-term use, can effectively prevent the heat and heat loss of heat transfer, and have the beauty while giving reliability to consumers An object of the present invention is to provide an inner pot for an electric pressure cooker.

According to an aspect of the present invention for achieving the above object, as an inner pot for an electric pressure cooker, a stainless steel plate is formed on the edge to prevent the loss of heat transferred to the inside, at least one heat generation inside the stainless steel plate And a heat transfer increasing function plate, wherein the stainless steel plate has a recess for exposing the functional plate to the outside so that the functional plate can be identified from the outside, and the discoloration of the functional plate exposed to the outside due to the recess. And a transparent coating layer is formed on the recess to prevent corrosion, and an inner pot for an electric pressure cooker having a plurality of dimples having a three-dimensional shape to increase the heat transfer area on the outer surface of the stainless steel plate.

The main portion may have a shape of any one of a line, a figure, and a letter, or at least two or more shapes of the line, the figure, and a letter.

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The functional plate is any one of a copper plate, a gold plate, and a silver plate, or at least two plates of the copper plate, the gold plate, and the silver plate are joined.

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The aluminum plate side has an inner coating layer to prevent harmful components of the aluminum plate from being discharged and to prevent adsorption of food.

A pair of stud nuts are fixed to the outer surface of the stainless steel plate so as to be symmetrical to each other, and a handle is fixed to the stud nuts by fasteners.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the inner pot for an electric pressure cooker according to the present invention.

5 is a perspective view showing an inner pot for an electric pressure cooker according to the present invention, Figure 6 is a partial cross-sectional view showing another embodiment of the inner pot for electric pressure cooker according to the present invention, Figure 7 is a CC line of FIG. It is a cut section.

As shown in Figure 5 to 7, the inner pot 100 for the electric pressure cooker according to the present invention consists of a stainless steel plate 110, and a functional plate (120).

First, stainless steel (Stainless Steel: SUS, 110) plate is formed at the edge of the inner pot (100).

Since the stainless steel plate 110 is not only strong in hardness but also excellent in warmth, there is an effect of minimizing the loss of heat transferred into the inner pot 100.

In FIG. 6, the outer surface of the stainless steel plate 110 has a plurality of dimples 220 having a three-dimensional shape so as to increase a heat transfer area.

The shape of the dimple 220 may be formed in various shapes such as hexagonal, square, elliptical, and circular.

The dimple 220 may be formed on the entire outer surface of the stainless steel plate 110, and the dimple 220 may be formed only at a portion corresponding to the lower portion of the inner pot 100 in the stainless steel plate 110.

If the dimple 220 is formed on the outer surface of the stainless steel plate 110, the surface area for receiving heat generated from the heat source (not shown) of the electric pressure cooker is widened, the heat is easily supplied by the enlarged surface area Not only can it be received, but also an excellent effect such as shortening the cooking time of the food and increasing the calorific value is incidentally followed.

A pair of stud nuts 170 are fixed to the outer surface of the stainless steel plate 110 so as to be symmetrical to each other, and a handle 180 is fixed to the stud nuts 170 by fasteners 190.

However, if necessary, the stud nut 170 and the handle 180 may be removed from the outer surface of the stainless steel plate 110.

The functional plate 120 is formed inside the stainless steel plate 110.

This functional plate 120 increases heat generation and heat transfer.

In an embodiment, the functional plate 120 may be any one of a copper (Cu) plate, a gold plate (Au), and a silver (Ag) plate, or at least two of the copper plate, the gold plate, and the silver plate are bonded to each other. Preferably copper plate.

Specifically, copper constituting the copper plate is a metal with low resistance, but may pass electricity well, but as already mentioned in the prior art, it has a property of strongly generating heat and transferring heat depending on the degree of copper processing, and thus, the copper plate according to the present invention. If used as a functional plate 120 can produce an inner pot with excellent heat transfer and heat generation.

An aluminum (Al) plate 130 further includes an inner side of the functional plate 120.

However, in addition to the aluminum plate 130, other plates having excellent heat transfer may be used inside the functional plate 120.

The aluminum plate 130 is a material that is widely used as a material for manufacturing a general pot because of its relatively light weight and excellent heat transfer.

In an embodiment, the aluminum plate 130 has an inner coating layer 140 to prevent harmful components of the aluminum plate 130 from being discharged and to prevent adsorption of food.

The inner coating layer 140 may be, for example, a primer coating layer and a top coating layer made of Teflon, or may be a coating layer made of one or more layers as other materials other than Teflon.

The inner pot 100 for the electric pressure cooker according to the present invention is made of a stainless steel plate 110, a functional plate 120, and an aluminum plate 130, as described above, the stainless steel plate 110 The heat supplied to the inside of the inner pot 100 along the heat generating and heat transfer increasing function plate 120 and the aluminum plate 130 is not easily released to the outside by the stainless steel plate 110, the functional plate ( There is an advantage that can minimize the heat loss generated in 120 and to exhibit the same thermal efficiency or even better thermal efficiency even if less heat than the conventional.

On the other hand, in the present invention, the stainless steel plate 110 preferably has a recess 200 for exposing the functional plate 120 to the outside so that the functional plate 120 can be identified from the outside.

The recess 200 may have a shape of any one of a line, a figure, and a letter, or at least two or more shapes of the line, the figure, and a letter.

In an embodiment, the recess 200 consists of one line. However, the recess 200 may consist of a plurality of lines instead of one. In addition, the recess 200 may be formed in a shape such as a triangle or a square.

The recess 200 may be a logo or mark of a company that manufactures and sells. If the recess 200 is a letter, it may be the name of a company that manufactures and sells.

In the present invention, if the recessed part 200 exposing the functional plate 120 to the outside is formed on the stainless steel plate 110, the consumer can directly check the functional plate 120 to have a reliability for the product. But there is an advantage that can have a beauty due to the increase in visibility (視 認 性) of the functional plate (120).

The present invention preferably has a transparent coating layer 210 formed on the recess 200 to prevent discoloration and corrosion of the functional plate 120 exposed to the outside due to the recess 200.

The transparent coating layer 210 is, for example, a coating layer coated with a transparent ceramic coating agent.

In the present invention, when the functional plate 120 is a copper plate, when the copper plate is exposed to air, oxygen reacts and oxidizes (hereinafter referred to as rust), but in the present invention, the transparent coating layer 210 is formed on the main portion 200. Formation can effectively prevent rusting.

In addition, if the transparent coating layer 210 is a coating layer coated with a transparent ceramic coating agent, it is excellent in hardness, wear resistance, heat resistance, corrosion resistance, adhesiveness, acid resistance, and moisture resistance, so that the transparent coating layer 210 on the recess 200 If formed, not only can increase the life of the inner pot 100, but also high hydrophilicity does not form water droplets on the outer surface, because the transparency and glossiness is very excellent, the functional plate 120 can be identified very clearly and the inner pot The 100 itself has an excellent advantage that looks very beautiful.

In addition, if the transparent coating layer 210 is a coating layer coated with a transparent ceramic coating agent, it may have an excellent pollution resistance, environmentally friendly, and can emit far infrared rays by itself.

The present invention is an inner pot for an electric pressure cooker, consisting of a stainless steel plate and a functional plate (for example, copper plate.), The heat supplied to the inside of the inner pot along the heat generating and heat transfer increasing functional plate through the stainless steel plate Since the stainless steel sheet is not easily discharged to the outside, it is possible to minimize the loss of heat generated in the functional plate and to exert the same thermal efficiency or better thermal efficiency even with less heat than in the past. There is.

In addition, the inner pot for the electric pressure cooker according to the present invention is made of a stainless steel plate and a functional plate, and having a main portion on the stainless steel plate, the consumer can directly check the functional plate to have reliability on the product Not only can it have an excellent effect of having a beauty due to the increased visibility of the functional plate.

In particular, the inner pot for the electric pressure cooker according to the present invention, since the functional plate is accommodated inside the stainless steel plate and at the same time a transparent coating layer is formed in the recess, the functional plate can effectively block the corrosion or damage of the inner pot to significantly reduce the life of the inner pot It can be increased, and the functional plate can be identified very clearly by the transparent coating layer, which has an excellent effect of making the inner pot itself look very beautiful.

Claims (7)

As inner pot for electric pressure cooker, A stainless steel plate is formed at an edge to prevent loss of heat transferred to the inside, and at least one function plate for increasing heat generation and heat transfer is formed inside the stainless steel plate, and the stainless steel plate is identified from the outside even from the outside. The main part has a main part for exposing the functional plate to the outside, and the transparent part is formed on the main part to prevent discoloration and corrosion of the functional plate exposed to the outside due to the main part, and the outer surface of the stainless steel plate Inner pot for electric pressure cooker, characterized in that it has a plurality of dimples having a three-dimensional shape so that the heat transfer area is increased. The method of claim 1, The main portion has a shape of any one of a line, a figure, and a letter, or an inner pot for an electric pressure cooker, characterized in that it has at least two or more shapes of the line, figure, and letter. delete The method of claim 1, The functional plate is any one of a copper plate, a gold plate, a silver plate, or an inner pot for an electric pressure cooker, characterized in that at least two plates of the copper plate, gold plate, silver plate are bonded. delete The method of claim 1, An aluminum plate is sequentially formed inside the functional plate, and the inner side of the aluminum plate has an inner coating layer to prevent the harmful components of the aluminum plate from being discharged and to prevent adsorption of food. The method of claim 1, A pair of stud nuts are fixed to the outer surface of the stainless steel plate to be symmetrical to each other, the inner pot for the electric pressure cooker, characterized in that the handle is fixed to the stud nuts by fasteners.

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