KR101691204B1

KR101691204B1 - Double heating cooker

Info

Publication number: KR101691204B1
Application number: KR1020150108617A
Authority: KR
Inventors: 조관형
Original assignee: 조관형
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2016-12-30
Also published as: WO2017023025A1

Abstract

The present invention relates to a double-heating type cooling tool which comprises a main body part and a lower plate. The main body part comprise: a main body lower plate of which an upper side is used as a cooking side; a heating space part disposed on a lower side of the main body lower plate and concave upward; a heat transferring pin protruding from the upper side of the heating space part to the bottom; and a hanging edge protruding to the bottom on an edge of the main body lower plate. The lower plate covers an opened lower portion of the heating space part while the upper side touches the heat transferring pin, and includes a first having projection protruding from an upper portion of a lateral side so that the lateral side can form a multi-staged structure having an upper diameter greater than the lower diameter. According to the present invention, the cooking tool applies double-heating type including a direct heat transfer method and an indirect heat transfer method, and thus uniformly maintains overall temperature of the cooking side, while allowing a user to cook under an optimal temperature even using flat heating units such as induction ranges.

Description

A double heating cooker

The present invention relates to a dual heating cooker. More particularly, the present invention relates to a dual heating cooker that applies heat to both the direct heat transfer system and the indirect heat transfer system to uniformly transfer heat across the entire cooking area and maintains an optimal temperature condition suitable for cooking food.

In general, a device for cooking food such as meat or fish roasts or potatoes is provided in a relatively flat, low-profile fan shape in which foods are thinly spread so as to be cooked as quickly as possible.

Such a pan-type cooking apparatus is manufactured and used by various methods. For example, a manufacturing method using a casting method using cast iron or aluminum or a drawing process of a press using a metal plate material is widely performed.

The fan-type cooking apparatus manufactured by this manufacturing method directly feeds the combustion heat to the bottom surface of the cooking apparatus, and the food is cooked. At this time, the combustion heat directly transmitted to the bottom surface of the cooking apparatus is heated locally Therefore, the heat conduction is not uniform.

That is, since heat is concentrated only on a partial area of the conventional cookware of the direct heat transfer type, only the surface of the cooking utensil that is in contact with the cooking utensil is rapidly burned before the cooked food is cooked as a whole, There is a problem that the steam or the smoke is excessively generated and the efficiency of the cooking is lowered.

In recent years, a cooking apparatus has been developed in which a double wall structure in which a bottom portion is provided with a space in which air can be retained is provided, and the air heated in this space acts as a heat transfer medium to indirectly heat the cooking surface touched by the food .

Such an indirect heating method has the advantage that the cooking operation can be performed more efficiently and the burning of the food to be cooked can be prevented because the heat is evenly transmitted to the cooking device. However, It takes a long time to rise to a temperature and a considerable time is required to cook the food itself, which leads to an increase in the overall cooking time.

Korean Registered Patent No. 10-0610323 (2006.08.01.)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual heating cooking appliance in which heat is uniformly transferred from a heating means to a cooking surface by applying both a direct heat transfer method and an indirect heat transfer method.

It is another object of the present invention to further extend the service life of the double heating cooker because the lower plate coupled to the main body bottom plate of the double heating cooker is further firmly coupled to prevent it from being arbitrarily separated.

In order to achieve the above-mentioned object, the present invention provides a cooking apparatus comprising: a main body bottom plate having a top surface as a cooking surface; a heating space portion disposed on a bottom surface of the main body bottom plate and recessed toward the top; A body portion having a bottom edge protruding downward from the body bottom plate; And a lower surface of the lower plate covering the open lower portion of the heating space in a state in which the upper surface is in contact with the thermally conductive pin and having a first coupling protrusion protruding from the upper surface of the side surface so that the upper diameter of the side surface is larger than the lower diameter Wherein the main body and the lower plate are joined together by plastic deformation so that the joining rim is pressed against the first joining jaw in a state in which the side surface of the bottom plate faces the inside of the joining rim. Provide cooking utensils.

At this time, the main body has a binding pin protruding from the bottom surface of the main body bottom plate, the bottom plate has the binding pin penetrated, the second binding jaw protrudes inward in the upper side, And a pin through hole formed in a narrower multi-step structure, and the binding pin is plastically deformed to press the second binding jaw by press working.

In addition, the main body includes a central binding portion protruding from the center of the bottom of the main body bottom plate, the middle binding portion penetrates through the bottom plate, a third binding jaw protrudes inward in the upper side, And a central through hole formed in a multi-end structure narrower than the diameter, and the central binding portion is plastically deformed to press the third binding jaw by press working.

In addition, the bottom plate has an exhaust hole formed in an edge portion thereof in a vertical direction.

The main plate bottom plate has a bottom plate extending portion disposed on the outer side of the binding edge and protruding downward so that a lower end of the bottom plate is disposed at a lower position than a lower surface of the bottom plate, And an exhaust groove formed concavely toward the upper direction may be provided.

The bottom plate of the main body bottom plate has a plurality of position fixing grooves formed concaved in an upward direction, and a plurality of position fixing grooves formed in the top surface of the bottom plate so as to conform to the position fixing grooves, A position fixing protrusion may be provided.

Since the present invention is realized by the direct heat transfer method in which heat transmitted from the heating means is directly transferred by contact until the heat is transferred to the cooking surface and the indirect heat transfer type double heat transfer method in which heat transfer is performed without mechanical contact, Is uniformly maintained as a whole, and a flat plate type heating means such as an induction range can be cooked under optimum temperature conditions.

In addition, the lower plate coupled to the main body bottom plate is further firmly coupled to prevent any disconnection, thereby providing a long service life.

1 is a perspective view showing an upper part of a dual heating cooker according to a preferred embodiment of the present invention.
2 is a perspective view showing a lower part of a dual heating cooker according to a preferred embodiment of the present invention.
FIG. 3 is a perspective view of a dual heating cooker according to a preferred embodiment of the present invention in a state in which a lower plate is detached. FIG.
4 is a bottom view of the main body of the double heating cooker according to the preferred embodiment of the present invention.
FIG. 5 is a top view of a bottom plate of a dual heating cooker according to a preferred embodiment of the present invention.
6 is a cross-sectional view illustrating a state in which a lower plate of the double heating cooker according to a preferred embodiment of the present invention is in close contact with a heat conductive fin.
FIG. 7 is a cross-sectional view illustrating a main body and a lower plate of a dual heating cooker according to a preferred embodiment of the present invention in a separated state.
8 is a cross-sectional view showing a main portion in a state in which the main body portion and the lower plate of Fig. 7 are in close contact with each other.
Fig. 9 is an enlarged cross-sectional view of a portion of the portion A in Fig. 8;
Fig. 10 is an enlarged cross-sectional view of a portion of the portion B of Fig. 8;
Fig. 11 is an enlarged cross-sectional view of the portion C of Fig. 8;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. Further, if it is determined that the gist of the present invention may be blurred, detailed description thereof will be omitted. Further, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be practiced by those skilled in the art.

2 is a perspective view showing a lower part of a dual heating cooking apparatus according to a preferred embodiment of the present invention, and FIG. 3 is a perspective view of a double heating cooking apparatus according to a preferred embodiment of the present invention. 1 is a perspective view of a dual heating cooker according to a preferred embodiment of the present invention in a state in which a lower plate is detached; 4 is a bottom view of the main body of the double heating cooker according to a preferred embodiment of the present invention. FIG. 5 is a top view of the bottom plate of the dual heating cooker according to the preferred embodiment of the present invention. And FIG. 6 is a cross-sectional view illustrating a state in which a lower plate of the dual heating cooker according to a preferred embodiment of the present invention is in close contact with a heat conductive fin.

Hereinafter, a dual heating cooker 10 according to a preferred embodiment of the present invention will be described with reference to Figs. 1 to 6. Fig.

The dual heating cooker 10 according to the preferred embodiment of the present invention includes a main body 100, a lower plate 200, and a handle 300.

The main body 100 includes a main body bottom plate 110 having an upper surface serving as a cooking surface and a main body side plate 180 extending upward from a side edge of the main body bottom plate 110 and forming a side surface of the main body 100 ).

The bottom surface of the main body bottom plate 110 is provided with a thermally conductive pin 120 and a heating space part 130.

Specifically, the heating space 130 is disposed on the bottom surface of the main body bottom plate 110 and is concave toward the upper direction to form a space separated from the upper surface of the bottom plate 200.

The heat conduction fin 120 protrudes downward from the upper surface of the heating space part 130 and is in contact with the lower plate 200 as opposed to the heating space part 130 as shown in FIG. And directly transmits the heat conducted from the lower plate 200 to the cooking surface.

The lower plate 200 is coupled to the lower portion of the main body bottom plate 110 to receive heat directly from the heating means and to transmit the transferred heat to the main body bottom plate 110.

Specifically, the lower plate 200 is disposed so as to cover the opened lower portion of the heating space 130 in a state where the upper surface thereof is in contact with the heat conductive fin 120.

Air is retained in the heating space part 130 disposed between the main body bottom plate 110 and the bottom plate 200 and the heat of the bottom plate 200 is transmitted to the main body bottom plate 110 using air as a medium. The indirect heat transfer is achieved.

The plurality of heat conductive fins 120 may be arranged at a predetermined distance in the center of the body bottom plate 110, .

This is because the heating means, such as a gas range or the like, mainly concentrates heat to the edge portion of the cooking utensil, thereby generating a temperature difference between the central portion and the peripheral portion of the cooking surface. So as to more efficiently heat the central portion of the cooking surface so that the entire cooking surface can maintain a uniform temperature.

Although FIG. 4 illustrating the preferred embodiment of the present invention shows three heat conductive fins 120, it is needless to say that the number of heat conductive fins 120, the spacing distance, and the like can be adjusted according to the area of the cooking surface.

The handle 300 is attached to one side of the body side plate 180 and is formed of a material having a low thermal conductivity so that the user can easily grasp the food while cooking.

The main body 100 and the lower plate 200 are joined by pressing and deforming a part of the bottom surface of the main body bottom plate 110 so that the main body bottom plate 110 strongly presses the lower plate 200.

In order to engage the main body 100 and the lower plate 200, the main body 100 includes a binding edge 112, a binding pin 114, and a central binding portion 116 on the bottom surface of the main body bottom plate 110 And the lower plate 200 has a pin through hole 213 and a central through hole 215 at positions corresponding to the binding pin 114 and the central binding portion 116, respectively.

FIG. 7 is a cross-sectional view showing the main portion and the lower plate of the double heating cooker according to the preferred embodiment of the present invention, and FIG. 8 is a cross- Fig. Fig. 9 is an enlarged cross-sectional view of a portion A of Fig. 8, Fig. 10 is an enlarged cross-sectional view of a portion B of Fig. 8, and Fig. 11 is an enlarged cross- sectional view of a portion of a portion C of Fig.

Specifically, Figs. 9 (a), 10 (a) and 11 (a) are sectional views of the main body bottom plate 110 and the bottom plate 200 before press working, and Figs. 9 (b) is a cross-sectional view showing a state in which the main body bottom plate 110 and the bottom plate 200 are joined after the press working.

Hereinafter, the coupling structure of the main body 100 and the lower plate 200 will be described in detail with reference to FIGS.

First, as shown in FIG. 7, the binding rim 112 is formed to protrude downward at the rim of the main body bottom plate 110.

A first coupling step 212 is formed on the side surface of the lower plate 200 so as to form a multi-step structure having an upper diameter larger than the lower diameter.

9 (a), if the press processing is performed while the side surface of the lower plate 200 is disposed so as to face the inside of the binding edge 112, the binding edge 112 And the main body 100 and the lower plate 200 are coupled to each other.

The main body 100 includes a binding pin 114 protruding from the bottom surface of the main body bottom plate 110 to firmly connect the main body 100 and the bottom plate 200, And a pin through hole 213 through which the pin 114 passes.

At this time, as shown in FIG. 10, a second binding step 214 is protruded inward in the upper part of the side surface of the pin through hole 213 to form a multi-step structure in which the upper diameter of the pin through hole 213 is narrower than the lower diameter It accomplishes.

The binding pin 114 is plastically deformed to press the second binding step 214 by press working in a state of passing through the pin through hole 213 so that the lower plate 200 is more firmly coupled to the main body bottom plate 110 (See Fig. 10 (b)).

A plurality of the binding pins 114 may be disposed between the thermally conductive pins 120 and the binding edges 112 at regular intervals and the pin through holes 213 may be disposed at corresponding positions, It is preferable to supply the most heat energy from the means so as to be able to improve the bonding force of the portion where heat is likely to be deformed.

The main body 100 has a central binding portion 116 protruding from the center of the bottom of the main body bottom plate 110 as another means for more firmly coupling the main body 100 and the lower plate 200, The lower plate 200 has a central through hole 215 through which the central coupling part 116 passes.

At this time, as shown in FIG. 11, a third binding jaw 216 protrudes inward to form a multistage structure having an upper diameter narrower than a lower diameter at the upper side of the central through hole 215.

The central binding portion 116 is plastically deformed to press the third binding step 216 by press working in a state of passing through the central through hole 215 so that the lower plate 200 is more firmly fixed to the main body bottom plate 110 (See Fig. 11 (b)).

As described above, the double heating cooking apparatus 10 according to the preferred embodiment of the present invention has a multi-stage structure in the lower plate 200 for improving the coupling force between the main body 100 and the lower plate 200, 214 and 216 and the structures for engaging the main body bottom plate 110 are plastically deformed to strongly tighten the engaging shoulders 212, 214 and 216 so that a more firmly engaged state of the main body 100 and the lower plate 200 .

On the other hand, the lower plate 200 has an exhaust hole 230 formed in the rim portion in a vertical direction.

The exhaust hole 230 is a passage through which the heat transferred from the space between the lower plate 200 and the heating space 130 escapes to the outside. The heat transferred from the bottom plate 200 to the main body bottom plate 110 is reduced due to the heated heat exiting to the outside, thereby preventing the temperature of the cooking surface from rising excessively.

Therefore, the temperature of the cooking surface can be kept constant by the exhaust hole 230, for example, about 250 deg. C suitable for the cooking of the food. In this case, the temperature of the cooking surface may be controlled according to the type of the food or the food to be cooked.

8 and 9, the lower plate 200 has a drain hole 240 at a rim portion thereof.

The drain hole 240 is formed to drain water remaining in a space disposed between the main body bottom plate 110 and the bottom plate 200 like the heating space portion 130 during the cleaning of the double heating cookware 10 of the present invention do.

At this time, it is also possible to form a gradient on the upper surface of the lower plate 200 so as to be inclined downward toward the drain port 240 in order to allow the inner water to be drained more smoothly through the drain port 240.

It is needless to say that water drained in the space disposed between the main body bottom plate 110 and the bottom plate 200 can be drained through the exhaust hole 230 as well as the drain port 240.

7 to 9, the main body 100 includes a bottom plate extension part (not shown) disposed on the outer side of the binding edge 112 and protruding downward from a rim of the main body bottom plate 110 140). The bottom plate extending portion 140 is provided with an exhaust groove 142 formed to be concave toward the upper direction.

The bottom plate extension part 140 as described above takes into consideration the case where the double heating cooking utensil 10 of the present invention is heated by a heating unit having a flat heating surface on the upper side such as an induction range.

That is, when the double heating cooking apparatus 10 is mounted on the heating means having the upper flat plate, the lower surface of the lower plate 200 can be brought into close contact with the heating means to close the exhaust holes 230. In this case, 130 may not be discharged to the outside.

The bottom plate extension part 140 is provided to prevent such a case. The bottom plate extension part 140 is formed such that its lower end is disposed at a lower position than the lower face of the lower plate 200, so that when the double heating cooking appliance 10 is lifted up to the plate- So that the lower surface of the heating plate 200 can be kept apart from the heating means (see FIG. 9 (b)).

The exhaust groove 142 formed in the bottom plate extending portion 140 communicates the inside space between the flat plate type heating means and the bottom plate 200 with the outside so that the heat discharged into the exhaust hole 230 flows into the exhaust groove 142, So that it can be discharged to the outside.

The main body bottom plate 110 and the bottom plate 200 are fixed to the position fixing grooves 150 and the bottom plate 200 in order to prevent the bottom plate 200 from flowing during the process of joining the main body bottom plate 110 and the bottom plate 200, And fixing protrusions 250 may be respectively provided.

Specifically, the bottom surface of the main body bottom plate 110 is provided with a plurality of position fixing grooves 150 concaved in the upward direction, and the top surface of the bottom plate 200 is formed to conform to the position fixing grooves 150 A plurality of position fixing protrusions 250 inserted into the position fixing grooves 150 are provided.

The position fixing grooves 150 and the position fixing protrusions 250 are disposed at the edges and the center of the main body bottom plate 110 and the bottom plate 200 so that the space between the heating space 130 and the bottom plate 200 So as not to interfere with the flow of heated air remaining.

As described above, the dual heating cooking apparatus 10 according to the preferred embodiment of the present invention can uniformly maintain the temperature of the cooking surface as a whole by applying both the direct heat transfer type and the indirect heat transfer type double heat transfer type, The same flat plate type heating means can be cooked under the optimum temperature condition.

In addition, the bottom plate 200 coupled to the main body bottom plate 110 is further firmly coupled to prevent any disconnection, thereby providing a long service life.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and accompanying drawings. The scope of protection of the present invention should be construed according to the claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: Double heating cooker
100: main body 110: main body bottom plate
112: Bonding rim 114: Bond pin
116: central joint part 120: thermally conductive pin
130: heating space part 140: bottom plate extension part
142: exhaust groove 150: position fixing groove
180: main body side plate 200: bottom plate
212: first binding jaw 213: pin through hole
214: second binding jaw 215: central through hole
216: third binding jaw 230: exhaust hole
240: drain hole 250: position fixing projection
300: Handle

Claims

A main body bottom plate having an upper surface as a cooking surface,
A heating space portion disposed on the bottom surface of the main body bottom plate and recessed toward the upper direction,
A thermally conductive pin protruding downward from an upper surface of the heating space,
A main body part having a bottom edge and a bottom edge protruding downward from the main body bottom plate; And
And a bottom plate which covers the open lower portion of the heating space portion in a state where the upper surface is in contact with the heat conductive fin and has a first coupling protrusion protruded from the upper side of the side surface so that the upper diameter of the side surface is larger than the lower diameter However,
The main body portion and the lower plate are coupled with each other by plastic deformation so that the joining rim is pressed against the first joining jaw in a state in which the side surface of the bottom plate faces the inside of the joining rim,
The rim of the main body bottom plate
And a bottom plate extension portion disposed outside the binding edge and protruding downward so that a lower end thereof is disposed at a lower position than a lower surface of the lower plate,
Wherein the bottom plate extending portion is provided with an exhaust groove formed concavely toward the upper direction.

The method according to claim 1,
Wherein the main body includes a coupling pin protruding from a bottom surface of the main body bottom plate,
Wherein the lower plate has a pin through hole having a multi-step structure in which the fastening pin is penetrated, a second fastening protrusion protrudes inward in the upper side, and the upper diameter is narrower than the lower diameter,
And the binding pin is plastically deformed so as to press the second binding jaw.

The method according to claim 1,
Wherein the main body includes a central binding portion protruding from the center of the bottom of the main body bottom plate,
Wherein the lower plate has a central through hole having a multi-step structure in which the central connecting part is penetrated, a third binding step protrudes inward in the upper side, and the upper diameter is narrower than the lower diameter,
And the central binding portion is plastically deformed to press the third binding jaw.

The method according to claim 1,
Wherein the lower plate has an exhaust hole formed in an edge portion thereof in a vertical direction.

delete

The method according to claim 1,
A plurality of position fixing grooves formed in the bottom surface of the main body bottom plate so as to be concave upward,
Wherein the upper surface of the lower plate is provided with a plurality of position fixing projections formed in the position fixing grooves and inserted into the position fixing grooves.