KR20160115877A - Container for induction range and method formanufzcturing thereof - Google Patents

Abstract

The present invention relates to a cooking container for an induction range which can enable the cooking of food by being placed on an upper side of the induction range, and a producing method thereof. The cooking container for an induction range comprises: a container main body part for providing a predetermined cooking space; and a container heating part formed from a material containing iron and provided on one side of the container main body part facing the upper side of the induction range so as to be heated by a magnetic field induced from the induction range such that the container main body part is heated, wherein at least a part of one side of the container main body part facing the upper side of the induction range has an embossed portion and an engraved portion, and the container heating part is formed by being attached, by a plating method and a brazing method, to at least a part of the inner side forming the engraved portion.

Description

TECHNICAL FIELD [0001] The present invention relates to a cooking vessel for an induction cooking range and a manufacturing method thereof. BACKGROUND OF THE INVENTION [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking vessel for induction cooking and a method of manufacturing the same, and more particularly, to a cooking vessel for an induction cooking pot in which a material containing iron is provided on a lower surface of a cooking vessel through plating or brazing, .

Generally, the Induction Range is supplied with power and has a coil for generating a magnetic field by applying a high voltage. When a high voltage is applied to the coil, the induction field induces a magnetic field. In this induction range, The principle is that the metal body is heated.

These induction ranges do not cause fire because there is no flame or harmful gas, and there is no danger of fire, and there is no inevitable carbon monoxide generated when gas is used as a heat source. have.

In addition, the induction range does not cause burns even if the grill touches the grill while heating the container. There is no risk of fire or explosion because there is no flame, and the grill does not get burned when the body touches the grill. And it is a tendency to use it recently.

However, the container for use in such an induction cooking stove must be made of metal on the bottom surface of the container, which is a portion touching the grill, so as to be magnetically induced by the magnetic field generated in the induction cooking stove. That is, the bottom surface of the cooking vessel must contain an iron (Fe) component.

Therefore, the induction cooking stove can use only a container made of a metal material capable of magnetic field and magnetic response, and a container made of non-ferrous metal such as aluminum or stainless steel, which occupies most of the cooking container, There is a disadvantage that is impossible.

An object of the present invention is to provide a cooking vessel for an induction cooking stove which can be used for a cooking stove of nonferrous metal, stoneware, glass, and pottery by providing a material containing iron on the bottom surface of the cooking vessel, and a manufacturing method thereof .

According to an aspect of the present invention, there is provided a cooking vessel for an induction cooking stove which is seated on an upper surface of a cooking stove for cooking food, the cooking vessel comprising: a container body unit for providing a predetermined cooking space; And a container heating part formed on one surface of the container main body opposite to the top surface of the induction cooking range so as to be heated by the magnetic field induced from the induction cooking stove so as to be heated with the material containing iron, Wherein at least a part of one surface of the container main body facing the top surface of the induction cooking stove has an embossed portion and an engraved portion and the container heating portion is provided with at least one portion of the inner surface defining the engraved portion, And is formed to be adhered thereto.

The vessel heating unit of the cooking vessel for induction cooking according to an embodiment of the present invention includes an immersion plating method for immersing one surface of the container body portion facing the upper surface of the induction cooking stove into the plating solution containing the iron, And a spray plating method for spraying the plating solution containing the iron on one surface of the container main body opposite to the surface of the container main body.

The container heating unit of the cooking vessel for induction cooking according to an embodiment of the present invention may be configured such that a predetermined convection space is formed between the upper surfaces of the induction cooking stove so as to minimize transfer of heat generated by the magnetic field to the induction cooking stove The present invention is characterized in that it is provided.

The container heating portion of the cooking vessel for induction cooking according to an embodiment of the present invention may be characterized in that the engraved portion and the embossed portion are formed on one surface common to each other.

The container heating portion of the cooking vessel for induction cooking according to an embodiment of the present invention may be formed on one surface of the inner surface defining the engraved portion that is not shared with the embossed portion.

One surface of the relief portion facing the upper surface of the induction cooking range of the cooking vessel for induction cooking according to an embodiment of the present invention and one surface of the container heating portion facing the upper surface of the induction cooking range form the same plane can do.

The container heating portion of the cooking vessel for induction cooking according to an embodiment of the present invention may be characterized in that the inner surface of the vessel heating portion is inclined so as to increase the adhesive force with the inner surface defining the engraved portion.

The container heating unit of the cooking vessel for induction cooking according to an embodiment of the present invention may be formed of a material containing iron and nickel or copper.

The cooking vessel for induction cooking according to an embodiment of the present invention may further include a coating unit coated on at least a part of one surface of the vessel heating unit to protect one surface of the vessel heating unit exposed to the outside.

The coating portion of the cooking vessel for induction cooking according to an embodiment of the present invention may be formed of at least one of the heat-resistant paint, titanium, Teflon, fluorine, and ceramics.

The container heating portion of the cooking vessel for induction cooking according to an embodiment of the present invention may be formed in at least a part of the inner surface defining the engraved portion by removing a part of the embossed portion.

According to the cooking vessel for induction cooking and the method for manufacturing the same according to the present invention, a cooking vessel for high-quality induction cooking can be provided at low cost by forming a vessel heating unit through plating or brazing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic bottom perspective view of a cooking vessel for an induction cooking stove according to an embodiment of the present invention; FIG.
2 is a schematic exploded perspective view of a cooking container for an induction cooking stove according to an embodiment of the present invention;
3 is a schematic sectional view taken along the line AA of Fig.
4 is a schematic cross-sectional view along the line BB in Fig.
Fig. 5 is a view showing a first modification to A in Fig. 3; Fig.
Fig. 6 is a view showing a second modification to A in Fig. 3; Fig.
Fig. 7 is a view showing a third modification to A in Fig. 3; Fig.
Fig. 8 is a view showing a fourth modification to A in Fig. 3; Fig.
Fig. 9 is a view showing a fifth modification to A in Fig. 3; Fig.
10 is a view for explaining a method of manufacturing a cooking vessel for induction according to an embodiment of the present invention.
11 is a view for explaining another manufacturing method of the cooking vessel for induction according to the embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

When the magnetic field generated by the coil of the induction cooking stove passes through the bottom of the cooking vessel, the resistance of the material layer containing iron generates a swirling current, So that the cooking vessel itself can generate heat.

Hereinafter, a cooking vessel usable in an induction cooking stove will be described.

1 and 2 are a schematic bottom perspective view and a schematic exploded perspective view of a cooking container 1000 for an induction cooking stove according to an embodiment of the present invention, FIG. 3 is a schematic sectional view taken along line AA of FIG. 1, Sectional view taken along line BB of Fig.

1 to 4, a cooking vessel 1000 for an induction cooking stove includes a container body part 1200 for providing a predetermined cooking space 1240; And a container body 1200 provided with a material containing iron on one surface of the container main body 1200 facing the upper surface of the induction cooking range so that the container main body 1200 is heated by a magnetic field induced from the induction cooking range, At least a part of one surface of the container body part 1200 facing the upper surface of the induction cooking stove has an embossed part 1222 and a depressed part 1224, And at least a part of the inner surface defining the portion 1224 may be formed by at least one of plating and brazing methods.

And a coating portion 1600 in which a container exposed to the outside is coated and provided on at least a part of one surface of the heating portion 1400 so as to protect one surface of the heating portion 1400.

At this time, as the plating method, immersion plating and spray plating method may be provided.

In this case, one side of the container main body 1200 facing the upper surface of the induction cooking stove may mean container bottom 1220. Although the induction cooking stove is not shown in the drawing, the induction cooking stove has a flat upper surface, and the bottom surface 1220 of the induction cooking pot 1000 according to the present invention is seated on the flat surface.

The container body part 1200 may have a relief part 1222 and a relief part 1224 on at least a part of the bottom surface 1220 of the container which is exposed to the outside. At this time, the embossed portion 1222 and the engraved portion 1224 may be alternately formed. The outer surface defining the embossed portion 1222 may be provided as a first surface 1222a connecting the common surface S provided on both sides and the common surface S on both sides. Here, the first surface 1222a is a surface that contacts the upper surface of the induction cooking stove. And the common surface S and the first surface 1224a may be provided in various forms such as a plane and a curved surface.

The embossed portion 1222 may protrude in various patterns as a portion abutting the upper surface of the induction cooking stove. Such a pattern is formed in such a manner that the container body portion 1200 and the container thermal expansion portion 1400 are thermally expanded to protrude to the outside of the cooking container 1000 for induction cooking or the container body portion 1200 and the container open between the heating portion 1400 Or < / RTI > Specifically, such a pattern may be formed radially, and a predetermined shape may be repeated along the circumferential direction.

The inner surface defining the engraved portion 1224 may be provided on the second surface 1224a connecting the common surface S provided on both sides and the common surface S on both sides. Here, the second surface 1224a is a surface facing the upper surface of the induction cooking range. And the common surface S is a surface shared by the engraved portion 1224 and the embossed portion 1222. [ And the second surface 1224a and the common surface S may be provided in various forms such as a plane and a curved surface. However, in the present invention, the description will be made with reference to the shared surface S, the first surface 1222a, and the second surface 1224a provided in a planar shape.

The engraved portion 1224 is formed such that the container is recessed when the container 1420 is provided to be provided with the heating portion 1400 and the container provided in the engraved portion 1224 is heated by heat generated by the magnetic field in the heating portion 1400, So that a predetermined convection space C is formed between the upper surfaces of the induction cooking ranges.

On the other hand, the portion where the second surface 1224a of the engraved portion 1224 meets the common surface S and the portion where the first surface 1222a and the common surface S of the embossed portion 1222 meet can be rounded , Which may occur during the forming process of the engraved portion 1224, such as a pressing process.

The container body part 1200 may be provided with a material that does not contain iron and may be provided with a material such as aluminum, ilite, stainless steel, stoneware, glass, ceramics, and a non-ferrous alloy. Therefore, the container body portion 1200 is not heated by the magnetic field induced from the induction cooking stove.

The container heating portion 1400 may be provided on the inner surface defining the engraved portion 1224. That is, on the shared surface S and the second surface 1224a on both sides of the engraved portion 1224. [ Here, the overall height of the container 1400 may vary depending on the height of the container 1400 provided on the sharing surface S.

3, the container provided on one side of the inner surface defining the engraved portion 1224 facing the upper surface of the induction cooking stove is provided with the heating portion 1400 and the common surface S, and the container is provided with the heating portion 1400 But it is also possible that each of them is provided in a separate form.

The container 1400 may be provided to the engraved portion 1224 through plating or brazing.

As the plating method, immersion plating and spray plating method may be provided.

The immersion plating is a method in which the lower surface 1220 of the container body portion 1200 facing the upper surface of the induction cooking stove is immersed in a plating solution containing iron.

The spray plating is a method in which a plating solution containing iron is sprayed on the lower surface 1220 of the container main body 1200 facing the upper surface of the induction cooking stove.

In the present invention, immersion plating and spray plating are described as plating methods, but plating methods such as electroplating, electroless plating and vacuum plating may also be used.

Brazing is a method of joining a material containing iron to the bottom surface 1220 of the container main body 1200 facing the upper surface of the induction cooking stove.

At this time, as the material containing iron, a material such as Fe-Ni alloy and Fe-Cu alloy may be provided. In particular, copper (Cu) has a high thermal conductivity, so that the container can improve the heat transfer efficiency of the heat part 1400.

The coating portion 1600 may be provided to protect one side of the heating portion 1400 from being exposed to the outside, and may be formed of a material such as heat-resistant paint, titanium, Teflon, fluorine and ceramics.

The coating portion 1600 not only protects the container 1400 against the heating portion 1400, but also can beautify the appearance of the cooking container 1000 for the induction cooking stove, and can play various roles depending on the coating material.

The coating portion 1600 may be provided to the container body portion 1200 and is not limited to the case where the container is provided only to the heating portion 1400. Further, the coating portion 1600 may be omitted.

Hereinafter, a cooking vessel 1000 for induction cooking according to a modification of the present invention will be described.

5 is a view showing a first modification of A in Fig.

Referring to FIG. 5, a cooking vessel 1000 for induction cooking according to a first modification of the present invention includes a cooking vessel 1000 for cooking a beverage according to an embodiment of the present invention described with reference to FIGS. 1 to 4 except for a heating portion 1400 Explanation of the container other than the heating portion 1400 is omitted because the constitution and effects are the same as those of the cooking pot 1000 for the other induction cooking ranges.

The container 1400 according to the first modification of the present invention may be provided only on the entire second surface 1224a and a part of the common surface S on both sides of the inner surface defining the depressed portion. Therefore, in the part of the sharing surface S, the container is not provided with the heating portion 1400, and the sharing surface S itself can be exposed.

Fig. 6 is a view showing a second modification of A in Fig.

Referring to FIG. 6, a cooking vessel 1000 for induction cooking according to a second modification of the present invention includes a cooking vessel 1000 for cooking a beverage according to an embodiment of the present invention described with reference to FIGS. 1 to 4 except for the heating portion 1400. Explanation of the container other than the heating portion 1400 is omitted because the constitution and effects are the same as those of the cooking pot 1000 for the other induction cooking ranges.

The container 1400 according to the second modification of the present invention may be provided only on the second surface 1224a of the inner surface defining the engraved portion 1224. [ At this time, it is also possible to provide only the whole or a part of the second surface 1224a.

When the container is provided with the heating portion 1400 only on a part of the second surface 1224a, the container can be provided with the heating portion 1400 so as to be spaced apart from the common surface S at a constant interval. The space formed between the common surface S and the container portion 1400 may be a space where the container 1400 can expand when the container portion 1440 is heated and thermally expanded.

FIG. 7 is a view showing a third modification of FIG. 3A.

7, a cooking vessel 1000 for an induction cooking stove according to the third modification example of the present invention includes a raised portion 1222, a depressed portion 1224, and a container, except for the heating portion 1400, The embossing portion 1222, the engraved portion 1224, and the container are not described in the description other than the heating portion 1400 because the constitution and effects of the cooking pot 1000 are the same as those of the cooking pot 1000 for the induction cooking stove according to an embodiment of the present invention, Is omitted.

The engraved portion 1224 according to the third modified example of the present invention may be provided such that the angle formed by the shared surface S and the second surface 1224a forms an obtuse angle and thus the shape of the embossed portion 1222 is determined . Accordingly, the engraved portion 1224 may be provided in an isosceles trapezoidal shape whose entire upper side is shorter than the lower side. In this engraved portion 1224, the container heating portion 1400 can be provided.

The container 1400 provided in the engraved portion 1224 having an obtuse angle formed by the shared surface S and the second surface 1224a has a predetermined convection space C formed between itself and the upper surface of the induction cooking range ) Is enlarged, it is possible to minimize the transfer of heat generated by the magnetic field to the induction cooking stove.

Fig. 8 is a view showing a fourth modification of A in Fig. 3. Fig.

8, the cooking container 1000 for a cooking cavity according to the fourth variation of the present invention includes a raised portion 1222, a depressed portion 1224, and a container having a heating portion 1400, The embossing portion 1222, the engraved portion 1224, and the container are not described in the description other than the heating portion 1400 because the constitution and effects of the cooking pot 1000 are the same as those of the cooking pot 1000 for the induction cooking stove according to an embodiment of the present invention, Is omitted.

The engraved portion 1224 according to the fourth modified example of the present invention may be provided such that the angle formed by the shared surface S and the second surface 1224a forms an acute angle and thus the shape of the embossed portion 1222 is determined . Accordingly, the engraved portion 1224 may be provided in an isosceles trapezoidal shape whose entire upper side is longer than the lower side. In this engraved portion 1224, the container heating portion 1400 can be provided.

The container 1400 provided in the engraved portion 1224 having an acute angle formed by the shared surface S and the second surface 1224a can be increased in adhesion force with the inner surface defining the engraved portion 1224 have.

Therefore, even if the cooking vessel 1000 for induction cooking is used for a long time, the case where the heating section 1400 is separated from the container body part 1200 can be reduced.

FIG. 9 is a view showing a fifth modified example of A in FIG.

9, a cooking vessel 1000 for an induction cooking stove according to a fifth modified embodiment of the present invention includes a container 1000, Explanation of the container other than the heating portion 1400 is omitted because the constitution and effects are the same as those of the cooking pot 1000 for the other induction cooking ranges.

The heating portion 1400 according to the fifth modification of the present invention is configured such that the outer surface of the coating portion 1600 in which the container covers the heating portion 1400 faces the first surface 1222 of the relief portion 1222 facing the upper surface of the induction cooking stove 1222a may be provided to form the same plane.

The engraved portion 1224 may be provided so that the container has a depth equal to the total thickness of the heating portion 1400 and the coating portion 1600 and a portion of the embossed portion 1222 is cut so that the engraved portion 1224 It is also possible that the container is provided to have the same depth as the thickness of the heating portion 1400.

If the first surface 1222a of the embossing portion 1222 facing the upper surface of the induction cooking stove forms the same plane as the one surface of the coating portion 1600 and the surface of the induction cooking stove, the problem of foreign matter sticking to the engraved portion 1224 can be solved.

On the other hand, the container heating portion 1400 can be provided such that when the coating portion 1600 is omitted, the first surface 1222a of the boss portion 1222 and the outer surface of the heating portion 1400 form the same plane .

Hereinafter, a method of manufacturing the cooking vessel 1000 for induction cooking according to an embodiment of the present invention, which is applicable to the cooking vessel 1000 for induction cooking with reference to FIGS. 1 to 8, will be described.

10 is a view for explaining a method of manufacturing the cooking vessel 1000 for induction cooking according to an embodiment of the present invention.

Referring to FIG. 10, according to the method of manufacturing the cooking container 1000 for induction cooking according to the embodiment of the present invention, the heating portion 1400 can be formed by the plating method.

10A, the first step is to provide a predetermined cooking space 1240, and includes a container body 1220 having an embossed portion 1222 and a depressed portion 1224 formed on at least a part of one surface thereof facing the upper surface of the induction cooking stove, (1200). ≪ / RTI >

Referring to FIG. 10B, in the second step, the plating layer may be formed by plating the convex portion 1222 and the concave portion 1224 of the container main body 1200 with a material containing iron. At this time, the plating layer may be formed by a dip plating method in which one surface of the container main body 1200 facing the top surface of the induction cooking stove is immersed in a plating solution containing iron, and a method in which iron is contained on one surface of the main body portion 1200 facing the top surface of the induction cooking stove And a spray plating method for spraying a plating liquid.

Here, the plating method is not limited to immersion plating and spray plating, and other plating methods such as electroplating, electroless plating and vacuum plating may be provided.

The second step may include a step of corroding at least a part of the surface of the container body part 1200 before the plating process. When the surface of the container body part 1200 is corroded, The joining force of the part 1200 can be improved.

10C, in the third step, the plating layer formed on one surface of the embossed portion 1222 facing the upper surface of the induction cooking stove is removed, and the plating layer is formed only on at least a part of the inner surface defining the engraved portion 1224 At least a portion of the embossed portion 1222 can be cut so that the container is provided with the heating portion 1400. [

A method of cutting the embossed portion 1222 can be variously provided.

The first method is to cut a part of the embossed portion 1222 such that one surface of the embossed portion 1222 opposite to the upper surface of the induction cooking stove and the upper surface of the induction cooking stove face the same surface of the heated portion 1400, can do.

In the second method, a part of the embossed portion 1222 can be cut so that a predetermined convection space C is formed between the upper surface of the induction cooking stove and the heating portion 1400 of the container.

At this time, cutting of the embossed portion 1222 can be performed by a cutting machine such as a milling, a laser processing, and a water jet.

Between the second step and the third step, coating of the embossed portion 1222 and the engraved portion 1224 of the plated container main body 1200 may be included. The coating material may be at least one of heat-resistant paint, titanium, Teflon, fluorine, and ceramics, and the function of the induction cooking pot 1000 may vary depending on the coating material.

It is preferable to cut off the coating layer (not shown) remaining on the embossed portion 1222 when cutting the embossed portion 1222 after the coating process, and only a part of the inner surface defining the engraved portion 1224 Not shown).

In the third step, the cutting step and the coating treatment step of the embossing portion 1222 may be interchanged. When the coating process is last performed, a coating layer (not shown) may be formed on both the embossed portion 1222 and the depressed portion 1224, May be provided.

Hereinafter, another method of manufacturing the cooking vessel 1000 for induction cooking according to one embodiment of the present invention, which is applicable to the cooking vessel 1000 for induction cooking with reference to FIGS. 1 to 8, will be described.

11 is a view for explaining another manufacturing method of the cooking vessel 1000 for induction cooking according to an embodiment of the present invention.

Referring to FIG. 11, according to another manufacturing method of the cooking vessel 1000 for induction cooking according to an embodiment of the present invention, the heating part 1400 can be formed using the brazing method.

Referring to FIG. 11A, the first step may provide a container body part 1200 providing a predetermined cooking space 1240 and having one surface opposite to the upper surface of the induction cooking stove.

Referring to FIG. 11B, in the second step, the iron-containing material may be bonded to one surface of the steel sheet through the brazing method.

11C, in the third step, the iron-containing sheet bonded to one surface of the container body part 1200 is pressed by using the press P, 1222 and the engraved portion 1224 can be formed. The shape of the engraved portion 1224 and the embossed portion 1222 may be determined according to the shape of the press P and the ends of the engraved portion 1224 and the embossed portion 1222 may be rounded .

11D, in the fourth step, the sheet formed on one side of the embossed portion 1222 facing the upper surface of the induction cooking stove is removed so that the sheet remains only in at least part of the inner side defining the engraved portion 1224 At least a portion of the embossed portion 1222 can be cut so that the container is provided with the heating portion 1400. [

The cutting of the embossed portion 1222 can be performed by a cutting machine such as a milling, a laser processing, and a water jet.

Between the third step and the fourth step, a coating step may be provided on the embossed portion 1222 and the engraved portion 1224 of the container body portion 1200. The coating material may be at least one of heat-resistant paint, titanium, Teflon, fluorine, and ceramics, and the function of the induction cooking pot 1000 may vary depending on the coating material.

It is preferable to cut off the coating layer (not shown) remaining on the embossed portion 1222 when cutting the embossed portion 1222 after the coating process, and only a part of the inner surface defining the engraved portion 1224 Not shown).

In the fourth step, the cutting step and the coating treatment step of the embossing portion 1222 may be interchanged. When the coating treatment is last performed, a coating layer (not shown) is applied to both the embossing portion 1222 and the engraved portion 1224. [ May be provided.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those skilled in the art that such modifications or variations are within the scope of the appended claims.

1000: Cooking container for induction range
1200:
1220: When you are courageous
1222:
1222a: first side
1224:
1224a: second side
1240: Cooking space
1400:
1600: Coating portion
C: convection space
S: Shared side
P: Press

Claims (11)

A cooking vessel for an induction cooking stove which is seated on an upper surface of an induction cooking stove to enable cooking of food,
A container body part providing a predetermined cooking space; And
And a container heating part formed on one surface of the container main body opposite to the top surface of the induction cooking range so as to be heated by a magnetic field generated from the induction cooking appliance and heated by the magnetic field,
At least a part of one surface of the container main body opposed to the top surface of the induction cooking stove has an embossed portion and an engraved portion,
Wherein the container heating unit is formed by attaching at least one part of the inner surface defining the engraved portion by at least one of plating and brazing methods.
The method according to claim 1,
The container heating unit includes:
An immersion plating method for immersing one surface of the container main body opposite to the top surface of the induction cooking stove in a plating solution containing the iron and a spray plating for spraying the plating solution containing the iron on one surface of the main body portion of the container opposite to the top surface of the induction cooking stove Wherein the coating layer is provided as a plating layer by at least one of the methods.
The method according to claim 1,
The container heating unit includes:
Wherein a predetermined convection space is formed between the upper surfaces of the induction cooking ranges to minimize the heat generated by the magnetic field from being transmitted to the induction cooking ranges.
The method according to claim 1,
The container heating unit includes:
Wherein the engraved portion and the relief portion are formed on one surface common to each other.
The method according to claim 1,
The container heating unit includes:
Wherein the recessed portion is formed on one surface of the inner surface defining the engraved portion that is not shared with the embossed portion.
The method according to claim 1,
Wherein one surface of the relief portion facing the upper surface of the induction cooking stove and a surface of the container heating portion facing the upper surface of the induction cooking stove,
So that the same plane is formed.
The method according to claim 1,
The container heating unit includes:
Wherein the inner surface of the cooking cavity is inclined so as to increase the adhesive force with the inner surface defining the engraved portion.
The method according to claim 1,
The container heating unit includes:
Characterized in that the cooking cavity is formed of a material containing iron, nickel or copper.
The method according to claim 1,
And a coating part provided on at least a part of one surface of the container heating part so as to protect one surface of the container heating part exposed to the outside.
10. The method of claim 9,
The coating portion may include:
Wherein the heat-resistant paint is formed of at least one of the heat-resistant paint, titanium, Teflon, fluorine, and ceramics.
The method according to claim 1,
The container heating unit includes:
Wherein a part of the embossed portion is removed to form at least a part of the inner surface defining the engraved portion.

Images