KR101776550B1 - Cooking apparatus having a cavity divider for controlling radiant heat - Google Patents

Abstract

The present invention relates to a cooking apparatus having a compartment plate for controlling radiant heat, comprising: a heater installed in an inner portion of a cooking room; a combustion pipe surrounding the heater; and a combustion space formed between the heater and the combustion pipe. The heater is heating food and simultaneously pyrolyzes smoke caused by the heating for cooking, and an exhaustion pipe is connected in a middle of the combustion pipe. As such, the cooking apparatus connects the combustion space and an exterior portion so that the combustion space can be aerated. According to the present invention, the cooking room is divided by a compartment plate into two cooking rooms, an upper portion cooking room installed with the heater and the combustion pipe, and a lower portion cooking room accommodating food. An opening portion formed in a downward direction of the combustion pipe and a cover covering the opening portion are provided in the compartment plate. The opening portion is opened and radiant heat of the heater is transferred downward such that food is heated and simultaneously the smoke caused by the heating for cooking is pyrolyzed. In addition, the cover covers the opening portion so that radiant heat of the heater is blocked to be transferred downward and the smoke caused by the heating for cooking is pyrolyzed while the food is cooled down.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking apparatus having a radiating heat control plate,

There is provided a partition plate provided in a cooking chamber of a cooking device provided with a pyrolysis device for removing cooking soot. The partition plate divides the cooking chamber into an upper cooking chamber provided with a pyrolysis device and a lower cooking cavity accommodating food. This partition plate is capable of controlling the pyrolysis of the cooking soot while the food is being heated and the pyrolysis of the cooking soot is prevented, or the radiation of the pyrolysis unit is prevented from being transmitted downward, have.

Conventional cooking appliances do not have the function of removing cooking soot generated during cooking. Cooked soot from food does not only discomfort the people around it, but also seriously damages health. To solve this problem, a kitchen hood is installed in the kitchen. However, the range hood is located far from the place where the actual cooking is performed and does not prevent the cooking soot from diffusing into the kitchen, the living room or the room.

The oven is a cooking appliance that cooks food in a cooking chamber equipped with a heater. The oven simultaneously heats the surface and the interior of the food so that the bulky food can be efficiently cooked. Conventional ovens, however, do not have the ability to purify cooked soot that occurs while food is being cooked. Some ovens have a cleaning function to heat the cooking chamber to about 400 ° C to remove thermal contaminants accumulated on the wall of the cooking chamber. However, in this case, the cooking chamber is heated mainly without food, so that the problem that the cooking soot generated while the food is cooked is diffused into the room can not be solved.

It is also known to provide an oxidation catalyst on the top wall of the cooking chamber to reduce cooking soot. In order to effectively reduce the cooking odor, the oxidation catalyst must pass through the oxidation catalyst heated to 300 ° C to 500 ° C. Therefore, such an oven mainly includes a heater for heating the food and a heater for heating the oxidation catalyst, thereby consuming a large amount of electric energy. Oxidation catalysts are not only expensive in their own right but also need to be replaced if they lose activity.

Other techniques have been developed by the present applicant to remove cooking soot that occurs while food is being cooked. According to International Application WO 2013/187561 A1 and European Application EP 2,860,461 Al, an oven with a pyrolysis device is described in the cooking chamber. The pyrolysis apparatus includes heating means provided inside the cooking chamber, a combustion tube having a hollow formed therein to surround the heating means, a combustion space formed between the heating means and the combustion tube to allow the gas to flow, a fan for making a flow of air, And a connecting pipe connecting the middle part of the combustion tube and the fan.

The oven to which the pyrolysis device is attached is not thermally decomposed while staying in the combustion space heated by 700 ° C or more for 0.5 seconds or more without being diffused out of the cooking chamber. The heating means also serves to heat the food by providing radiant heat to the cooking chamber in addition to pyrolyzing the cooked soot.

An oven with a pyrolysis device is effective in pyrolyzing cooked soot that occurs during heating of food, but does not purify the cooking soot that occurs during food cooling. To cool cooked food, the pyrolysis unit must be stopped. However, when the pyrolysis apparatus stops operating, pyrolysis does not occur anymore, and thus the problem of the continuous cooking flue spreading out of the oven until the food is completely cooled occurs.

The present invention provides a partition plate installed in a cooking chamber of a cooking apparatus provided with a pyrolysis apparatus. The partition plate divides the cooking chamber into an upper cooking chamber provided with a pyrolysis device and a lower cooking cavity accommodating food. This partition plate can regulate the pyrolysis of the cooking soot during or while the food is heated, by allowing or blocking the radiant heat of the pyrolysis unit to be transmitted downward.

1. European application: EP 2,860,461 A1 (Oven hanving pyrolysis function). 2. International application: WO 2013/187561 (oven with pyrolysis function). 3. US Patent: US 6,316,749 (Self cleaning system for cooking appliance). 4. US Patent: US 6,318,245 (Cooking device with a catalyst). 5. US Patent: US 7,878,185 (Cooking apparatus with plasma cleaning). 6. US Patent: US 8,101,894 (Cooking device with deodorization).

A pyrolysis device for removing cooking soot generated when heating food is provided, and a cooking device provided with a partition plate in the cooking chamber. The partition plate divides the cooking chamber into an upper cooking chamber provided with a pyrolysis device and a lower cooking cavity accommodating food. The partition plate can control the pyrolysis of the cooking soot while the food is being cooked or cooled by allowing or blocking the radiant heat of the pyrolysis unit being fed down.

A body with a cooking chamber; A heater installed inside the cooking chamber; A tubular combustion tube having a hollow formed therein and surrounding the heater; A combustion space formed between the heater and the combustion tube and capable of gas flow; An exhaust pipe connected to the middle of the combustion pipe to connect the combustion space and the outside so as to allow air communication; And a partition plate installed inside the cooking chamber and dividing the cooking chamber into an upper cooking chamber provided with a heater and a combustion tube and a lower cooking chamber accommodating food, the partition plate having an opening formed on the lower side of the combustion tube and a lid closing the opening,

The heater heats the food, pyrolyzes the cooking soot passing through the combustion space,

The combustion tube is composed of a lower portion of a combustion tube through which light is transmitted and an upper portion of a combustion tube that reflects light,

The opening is opened so that the radiant heat of the heater is transmitted downward to heat the food while the cooked soot is pyrolyzed or the opening is closed by the lid to block the radiant heat of the heater from being transmitted down and the cooked soot is pyrolyzed And a cooking device.

Here, it is preferable that the lid is movable in the horizontal direction so that the closed area of the opening can be increased or decreased.

It is also preferable that a lid is disposed so that the cooking stove can move into a gap between the lid and the opening when the lid is closed by the lid.

Further, it is preferable that when the opening is closed by the lid, the lid is formed so as to reflect radiant heat of the heater upward.

In addition, the lower part of the combustion tube comprises a material selected from quartz, ceramic glass or heat-resistant glass, and the upper part of the combustion tube is made of a material which reflects light having a length corresponding to a sector arc having a central angle between 240 ° and 300 ° Or is covered with a material that reflects light.

Further, it is preferable that the cooking soot is not leaked to another place but is discharged to the outside only through the exhaust pipe.

Further, it is preferable to further include an auxiliary heater positioned below the lower cooking cavity.

To remove the cooking smoke, the windows must be vented or the air cleaner activated. Considering wasteful cooling / heating costs and other energy costs, cooking devices with a pyrolysis device that removes cooking soot from the cooking chamber have energy savings. The cooking device with partition plate keeps a comfortable indoor environment by pyrolyzing cooked soot which occurs during cooking and after food is cooled during cooking.

1 is a side sectional view of the cooking apparatus 10. Fig.
2 is a cross-sectional view of FIG.
FIG. 3A is an enlarged cross-sectional view showing the state in which the opening 62 is opened. FIG.
3B is an enlarged sectional view showing the state in which the opening portion 62 is closed by the cover 64. Fig.
4 is a perspective view showing the combined state of the heater 40, the combustion tube 50, and the exhaust pipe 52. Fig.
FIG. 5A is an enlarged sectional view of FIG.
5B is a sectional view of the combustion tube 50;

Other features and actions of the present invention will be described in detail with reference to the following examples.

1, 2 and 3, the cooking apparatus 10 includes a main body 20 provided with a cooking chamber 30; A heater (40) installed inside the cooking chamber (30); A combustion tube (50) surrounding the heater (40); An exhaust pipe 52 connected in the middle of the combustion pipe 50; And a partition plate 60 provided inside the cooking chamber 30 and dividing the cooking chamber 30 into two cooking chambers including an upper cooking chamber 32 provided with a heater 40 and a combustion tube 50 and a lower cooking chamber 34 containing food, .

A door 24 with a handle 26 is rotatably attached to the main body 20. The door 24 opens and closes the front portion of the cooking chamber 30 to facilitate the entry and exit of the food stored in the cooking chamber 30 and also to determine the degree of cooking of the food.

The cooking chamber 30 installed in the main body 20 is surrounded by the cooking chamber wall 22 and the front side is opened and closed by the door 24. A heater (40) for radiating heat is provided inside the cooking chamber (30), and an auxiliary heater (42) for radiating heat is provided inside the cooking chamber (30).

The heater (40) is surrounded by a hollow combustion tube (50). The heater 40 and the combustion tube 50 are spaced apart from each other by a predetermined distance to form a combustion space 44 through which gas can flow. The heater 40 may be adapted to radiate infrared rays by the electricity applied thereto, and the temperature of the combustion space 44 is maintained between 600 ° C. and 700 ° C., whereby pyrolysis of the cooking soot occurs. The heater 40 can also transfer the radiant heat downward to heat the food.

The combustion tube 50 has a structure in which both ends are opened in the form of a tube having a space formed therein. A combustion space 44 and an exhaust pipe 52 capable of air communication are connected to an intermediate portion of the combustion pipe 50. The end of the exhaust pipe (52) passes through the upper cooking chamber wall (22) and is exposed to the outside to connect the combustion space (44) to the outside in a gas communication manner. Therefore, the cooking soot of the cooking chamber 30 is not leaked to other places but is discharged to the outside through the exhaust pipe 52 only.

The cooking chamber 30 is provided with a partition plate 60 for dividing the cooking chamber 30 into two cooking chambers including a heater 40 and an upper cooking chamber 32 provided with a combustion tube 50 and a lower cooking chamber 34 containing food. The partition plate 60 is provided with an opening portion 62 formed on the lower side of the combustion tube 50 and a lid 64 closing the opening portion 62. The heater 40 supplies the radiant heat downward through the opening 62 (R1). The lid 64 is located on the side of the opening 62 and is arranged to be movable in the horizontal direction to increase or decrease the closed area of the opening 62. The cover 64 is made of a material that reflects light, or a material that reflects light. When the opening 62 is closed by the lid 64, the lid 64 is formed so as to reflect the radiant heat of the heater 40 upward. Therefore, the radiant heat of the heater 40 supplied downward through the opening 62 can be blocked by the cover 64 (R3).

The lid 64 can adjust the opening and closing of the opening 62 to adjust the radiant heat supplied downward while the heater 40 is on. As a result, the radiant heat of the heater 40 supplied downward can be controlled to control the heating or cooling of the food.

When the opening 62 is opened, the radiant heat of the heater 40 is transmitted downward, the food is heated and the cooked soot is pyrolyzed in the combustion space 44. When the opening 62 is closed by the lid 64, the radiation of the heater 40 is prevented from being transmitted downward (R3).

When the opening 62 is opened, the cooking soot generated from the food rises to the upper cooking chamber 32 through the opening 62 (F1). When the opening 62 is closed by the lid 64, the lid 64 is lifted up to the upper cooking chamber 32 through the gap formed between the lid 64 and the opening 62 .

Conventional ovens with pyrolysis devices are effective in pyrolyzing cooked soot while the food is being heated, but do not purify the cooking soot that occurs during the food's cooling. In order for the food to cool, the pyrolysis unit must be stopped. When the pyrolysis unit stops operating, the pyrolysis does not occur anymore, so the cooking soot that occurs until the food is completely cooled diffuses out of the oven.

The partition plate 60 of the present invention is designed to solve such a problem.

When the lid 64 closes the opening 62, the lower cooking chamber 34 can be operated independently from the upper cooking chamber 32. Even if the opening 62 is closed and the radiant heat of the heater 40 is not supplied downward, the cooked soot is generated from the already heated food for about 5 to 10 minutes. In this case, when the heater 40 is kept in the on state, the radiant heat of the heater 40 supplied to the lower cooking chamber 34 is blocked and the cooked soot is pyrolyzed in the combustion space 44 while the food is cooled.

The pyrolysis process of the cooked soot will be described with reference to FIGS. 3 and 4. FIG. The cooking soot of the lower cooking chamber 34 in which the food is accommodated rises to the upper cooking chamber 32 through the opening 62 or the upper cooking chamber 32 through the gap formed between the opening 62 and the lid 64, (F0) and flows into the combustion space 44 (F2). The cooking soot is pyrolyzed (F3) by the heater 40 during the movement in the combustion space 44. [ The purified gas in the combustion space 44 is discharged to the outside through the exhaust pipe 52 (F4).

5A is a cross-sectional view taken along line 5a-5a in FIG. Referring to FIG. 5A, the combustion tube 50 is composed of a lower portion 54 of a combustion tube that transmits light and a upper portion 56 of a combustion tube that reflects light. The radiant heat of the heater 40 is reflected by the upper portion 56 of the combustion tube and is concentratedly supplied in the downward direction R1 through the lower portion of the combustion tube (R2). The heater 40 not only efficiently heats food stored in the lower cooking chamber 34 but also pyrolyzes the cooking soot flowing into the combustion space 44.

5b, a lower portion of the combustion tube 54 having a length corresponding to a fan-shaped arc having a central angle (x °) between 60 ° and 120 ° and forming a lower portion of the combustion tube 50 is made of quartz, a ceramic glass, And a material that transmits light such as glass.

5B, the upper portion 56 of the combustion tube, which has a length corresponding to a sector arc having a central angle (y) of between 240 ° and 300 °, is formed above the combustion tube 50, It is preferable that it is made of a material or is covered with a material reflecting light.

According to the above description, the cooking apparatus 10 provided by the present invention can selectively control the partition plate 60 so that the lower cooking chamber 34 can be provided with a container for heating the food or a container for cooling the heated food, So that the lower cooking chamber 34 can be efficiently utilized.

Conventional cooking devices turn on / off the heater to start or stop the heating of the food. In the case of a cooking apparatus for pyrolyzing cooked soot generated at the same time as the heater heats the food, it is not possible to satisfactorily fulfill two functions by simply controlling the heater on / off.

The cooking apparatus 10 provided by the present invention serves as an independent regulating device in which the opening 62 and the lid 64 can start or end heating the food while the heater 40 is on . In particular, it is effective in pyrolyzing cooked soot resulting from hot food when cooling cooked food. The heater 40 can keep on when the lid 64 closes the opening 62 and the food is cooled so that the cooking soot generated until the food is completely cooled can be pyrolyzed in the combustion space 44 .

The scope of the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art. Accordingly, the invention is limited only by the following claims.

10: Cooking apparatus 20:
22: galley wall 24: door
26: handle 30: cooking chamber
32: upper cooking chamber 34: lower cooking chamber
40: heater 42: auxiliary heater
44: combustion space 50: combustion chamber
52: Exhaust pipe 54:
56: combustion tube upper portion 60: partition plate
62: opening 64: cover
F0: The flow of cooking soot passing through the gap between the opening portion (62) and the lid (64) and flowing into the upper cooking chamber (32).
Fl: Flow in which the cooking soot passes through the opening portion 62 and flows into the upper cooking chamber 32.
F2: the flow of cooking soot of the upper cooking chamber 32 into the combustion space 44;
F3: Movement of the gas which is pyrolyzed while passing through the combustion space (44).
F4: Flow in which the gas passed through the combustion space (44) escapes to the outside through the exhaust pipe (52).
R1: Flow in which the radiant heat of the heater 40 passing through the lower portion of the combustion tube 54 is transmitted downward.
R2: direction of movement of the radiant heat of the heater 40 reflected by the combustion tube upper portion 56;
R3: Direction in which the radiant heat of the heater 40 passed through the combustion tube lower portion 54 is reflected by the lid 64.

Claims (9)

A cooking chamber, a heater disposed inside the cooking cavity, a tube shaped combustion tube having a hollow formed therein and surrounding the heater, and a combustion space formed between the heater and the combustion tube, wherein the heater heats the food while pyrolyzing the cooked soot, 1. A cooking apparatus connected to an exhaust pipe in the middle of a combustion tube to connect the combustion space and the outside so as to allow air communication,
A partition plate provided inside the cooking chamber and dividing the cooking chamber into two cooking chambers each including an upper cooking chamber provided with the heater and the combustion tube and a lower cooking cavity accommodating food, the partition plate having an opening formed on the lower side of the combustion tube and a lid closing the opening Respectively,
When the opening is closed by the lid, the lid is disposed so that the cooking soot can rise to the upper cooking chamber through a gap between the lid and the opening. When the heater is on, the opening and the lid start heating the food Wherein the cooking device serves as an independent adjusting device capable of shutting down. The cooking apparatus according to claim 1, wherein the lid is movable in a horizontal direction. The cooking apparatus according to claim 1, wherein the lower cooking chamber is used for two purposes: a container for heating the food or a container for cooling the heated food by adjusting the partition plate. The cooking apparatus according to claim 1, wherein the lid is located on a side surface of the opening. delete delete delete The cooking apparatus according to claim 1, wherein the cooking soot does not leak to another place but is discharged to the outside only through the exhaust pipe. delete

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