KR200366218Y1 - Oven for Induction Heating Rice Cooker - Google Patents

Abstract

The present invention is not only beneficial to the human body, such as nature-friendly, far-infrared rays, high release of minerals, and smooth metabolism, but also maintains the unique taste and aroma of food when cooked and keeps food warm. Even when stored, it relates to an inner pot for an IH cooker which does not smell from food, especially rice.

According to the present invention, an inner container body of a natural stone material having an open upper surface, and an aluminum outer body molded on the outside of the inner container body, the surface of the aluminum outer body can generate heat by magnetic force lines due to induced currents There is provided an inner pot for IH cooker, characterized in that the magnetic film of the material is coated by a thermal spray coating.

Description

Oven for Induction Heating Rice Cooker

The present invention relates to an inner pot for a rice cooker of the electromagnetic induction heating method (hereinafter referred to as 'IH'), and more specifically, an electromagnetic induction heating composed of an inner container body made of natural stone and an aluminum outer body coated with a magnetic film. It relates to an inner pot for a rice cooker.

The existing electric rice cooker uses a 'hot plate heater' similar to an electric stove. There is a hot plate heater under the rice cooker, and a hotly heated hot plate heats the bottom of the inner pot. However, IH rice cooker cooks the whole inner pot in three dimensions like a wood fire.

When the IH cooker sends a high frequency current to the coil built in the cooker body, magnetic lines are generated around the coil and the magnetic lines pass through the pot. The magnetic wire passing through the pot induces secondary current, and Joule heat is generated by the secondary current and the resistance of the pot, and the pot is heated so that food can be cooked.

The inner pot for a conventional IH rice cooker has been manufactured using a single stainless steel plate or CLAD (stainless steel + aluminum) plate integrated as a whole. In this case, since most of the production by the press method, the production is very easy and the thermal conductivity has the advantage, but there is a problem that the food smells when the food is kept warm for a long time.

The present invention has been devised to solve the above problems, the purpose of the present invention is not only beneficial to the human body, such as nature-friendly and far-infrared, release of a large amount of minerals, metabolic smooth action, as well as the unique taste of food when cooking It is to provide the inner pot for the IH cooker that keeps the fragrance as it is and keeps food warm and does not smell well even in foods, especially rice, even when stored for a long time.

According to the present invention for achieving the above object, the upper surface includes an inner container body of a natural stone material, and an aluminum outer body cast on the outside of the inner container body, the surface of the aluminum outer body by the induced current There is provided an inner pot for an IH cooker, characterized in that a magnetic film of a material capable of generating heat by magnetic force lines is coated.

Other objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings.

1 is a cross-sectional view of the inner pot for an electric pressure cooker according to the first embodiment of the present invention.

Figure 2 is a partially cutaway perspective view showing a coupling state of the inner pot for IH rice cooker according to FIG.

Figure 3 is an enlarged partial cutaway view of the inner pot for IH cooker according to the second embodiment of the present invention.

4 is a cross-sectional view of the inner pot for the IH rice cooker according to the third embodiment of the present invention.

5 is a view showing the results of the far-infrared experiments when the inner pot is manufactured using the gobdol according to the present invention.

<Code Description of Main Parts of Drawing>

20: inner pot 21: inner container body

22: aluminum outer body 23: step

24: magnetic film 25: the handle

26: groove

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the inner pot for the IH rice cooker according to the first embodiment of the present invention, Figure 2 is a partially cut perspective view showing a coupling state of the inner pot for IH rice cooker according to FIG.

Referring to the drawings, the inner pot 20 for the IH rice cooker according to the present invention is composed of an inner container body 21 having an upper surface and an aluminum outer body 22 cast on the outside of the inner container body 21.

The inner container body 21 is made of a natural stone material, made of a material such as ganban stone, ceramics, gemstones, gallstones (kernel stone), preferably made of gemstones or gallstones.

This natural stone material is natural and is beneficial to the human body such that it emits large amounts of far infrared rays, minerals, etc. from natural stone to provide smooth metabolism, and it keeps the unique taste and aroma of food when cooking and has excellent heat retention. Food does not cool well, and even if it is stored for a long time, it provides a function such as not smelling food, especially rice.

As such, the inner pot according to the present invention has the advantage of being resistant to heat by using natural stones, having high thermal conductivity and preservation (that is, not quickly heating up and cooling down quickly), saving fuel, and preventing food from sticking to grease.

The surface of the aluminum outer body 22 is coated with a magnetic film 24 in order to enable the pot to generate heat by magnetic force lines caused by induced current. Preferably, the magnetic film 24 is coated from the bottom to the height (parts indicated by dotted lines in FIG. 2) from the bottom with respect to the entire height of the inner pot 20.

The coating of the magnetic layer 24 is performed by a spray coating method. A spray coating method is a type of arc-complete spraying, which uses electricity as a heat source and generates an arc using two metal wires as electrodes to form a reduced pressure formed by a spray compressed air. It is a method of forming a film by spraying the mist-like particulate metal melted into the layer to the base material along with the high speed airflow.

The material of the magnetic film 24 is made of a low cost general mild steel material made of carbon + silicon + Mn (manganese) + steel. Here, the content ratio of carbon, silicon, and manganese to steel is 0.15 to 0.23%, about 0.35%, and 1 to 1.5%, respectively.

The aluminum outer body 22 also has a step 23 for engaging the upper end of the inner container body 21. The step 23 may contribute to increasing the thermal conductivity of the inner pot than when the upper end of the inner container body 21 is exposed.

In addition, the inner container body 21 may be provided with a predetermined number of uneven grooves (not shown) in a portion where the aluminum outer body is cast, the uneven groove is the inner container body 21 and the metal made of natural stone material Providing a firm fusion of the aluminum outer body 22 made of a material, for example, so that the aluminum metal is filled in the concave-convex groove during the casting operation.

In addition, the inside of the inner container body may be marked with a grid marking (not shown) for water control. Such grid lines can be marked after drawing the grid lines, for example, using NC machines used in machining fields such as machine tools and molds.

On the other hand, in the present invention it will be understood that the inner container body 21 and the aluminum outer body 22 constituting the inner pot 20 should have a thickness enough to withstand a certain pressure generated during cooking. Preferably, the inner container body has a thickness of 4 ~ 4.5mm, the aluminum outer body has a thickness of 3.5 ~ 4mm.

3 is a partially cut-away enlarged cross-sectional view of the inner pot for the IH rice cooker according to the second embodiment of the present invention, except that the handle 25 is provided at the upper end of the inner container body 21, and has the same configuration as the inner pot described above. Has an element The handle 25 may be coupled to the inner container body using a variety of methods, such as welding, rivet joint according to the prior art.

Figure 4 is a cross-sectional view of the inner pot for the IH rice cooker according to a third embodiment of the present invention, the inner container body 21 inside the container in the center of the bottom surface for the purpose of promoting the diffusion of heat in the inner container body 21 It has the same components as the inner pot described above except that it further includes a concave recess 26. That is, the groove portion 26 allows the fluid flow in the inner pot during cooking to form a vortex, so that the diffusion of heat in the inside of the pot can proceed quickly, as a result of the cooker to cook evenly as a result of the cooker Help improve performance. Preferably, the recess 26 is formed at a height h of 5 to 10 mm from the bottom surface.

Figure 5 shows the results of the experiment of far-infrared infrared rays when the inner pot is manufactured using a multiply stone according to the present invention, the multiply (0.917㎛) is excellent far-infrared emission compared to other materials such as ceramics (0.9㎛), ceramics (0.824㎛) It can be seen that it provides an effect.

Referring to the manufacturing method of the inner pot for IH rice cooker according to the present invention, as follows.

First, the inner container body 21 is processed into a cylindrical shape.

Next, after casting the mold on the inner container body 21, aluminum casting is poured to form the aluminum outer body 22.

Next, after the aluminum outer body 22 is fused, the inner surface of the inner container body 21 is ground to have a predetermined thickness.

Finally, the magnetic film 24 is coated on the surface of the aluminum outer body 22 by a Stan spray coating method. After the magnetic film 24 is coated, surface coating may be additionally performed to improve durability.

As described above, according to the present invention, in the inner pot for the IH rice cooker, by constructing the inner container body made of natural stone material is not only beneficial to the human body, such as nature-friendly, far-infrared, release of mineral components, metabolic smoothness, etc. It offers the advantage that you can easily make foods that you have tasted at restaurants (bibimbap, nutrient stone rice, and multigrain rice) at home.

In addition, the heat penetrates deeply inside the food, causing heat generation, and since the outside is heated almost uniformly, the taste of the cooked food is improved, and the smell of the smell is eliminated even if it is kept warm for a long time due to the nature of the natural stone.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Therefore, the appended utility model registration claims will include any modifications or variations belonging to the subject matter of the present invention.

Claims (8)

In the inner pot for electromagnetic induction heating rice cooker, An inner container body of a natural stone material having an open top surface, and an aluminum outer body cast on the outside of the inner container body, and the surface of the aluminum outer body is coated with a magnetic film capable of generating heat by magnetic force lines caused by an induced current Inner pot for electromagnetic induction heating rice cooker characterized in that. The inner pot for an electromagnetic induction heating cooker according to claim 1, wherein the natural stone material forming the inner container body is a boulder or a stone. The inner pot of claim 2, wherein the inner container body has a thickness of 4 to 4.5 mm and the aluminum outer body has a thickness of 3.5 to 4 mm. The method according to claim 1, wherein the magnetic film is coated by a spray coating method from the bottom to 1/5 to 1/3 the height of the entire height of the inner pot, characterized in that using a mild steel material made of carbon, silicon, manganese and steel Inner pot for electromagnetic induction heating rice cooker to make. The inner pot for the electromagnetic induction cooker of claim 4, wherein the content ratio of carbon, silicon, and manganese to steel is 0.15 to 0.23%, about 0.35%, and 1 to 1.5%, respectively. The inner pot for an electromagnetic induction heating rice cooker of claim 1, wherein a handle is further provided at an upper end of the inner container body. The inner pot for an electromagnetic induction cooker of claim 1, wherein the inner container body further includes a recessed recess in the center of the bottom surface, wherein the recess is formed to have a thickness of 5 to 10 mm from the bottom surface. The inner pot for an electromagnetic induction heating rice cooker of claim 1, further comprising a grid line marking for adjusting water inside the inner container body.