WO2010131808A1

WO2010131808A1 - Cooking apparatus

Info

Publication number: WO2010131808A1
Application number: PCT/KR2009/004962
Authority: WO
Inventors: 윤민호; 김영수
Original assignee: 엘지전자 주식회사
Priority date: 2009-05-11
Filing date: 2009-09-03
Publication date: 2010-11-18
Also published as: KR20100122020A; KR101545750B1

Abstract

The present invention relates to a cooking apparatus comprising: a heating element which is positioned along the upper side of a cavity convexly rounded in the upper direction; and a heat storage unit which is positioned inside the cavity. Therefore, the cooking apparatus of the present invention can concentrate the heat generated from the heating element and enables the gradual heating of food.

Description

Cooker

The present invention relates to a cooking appliance.

In general, the cooking appliance is a home appliance for cooking food. Such a cooking apparatus cooks food by heating food using at least one of a heater heat, microwave, and steam.

The cooking apparatus includes a cooking chamber in which food is cooked. In addition, the main body is provided with a heating source such as at least one of a heater for generating heater heat, a magnetron for generating microwaves, and a steam generator for generating steam. The steam generator generates steam and supplies the steam to the cooking chamber.

On the other hand, the cooking appliance is provided with a door for opening and closing the cooking chamber. The door is provided with a door handle for holding by the user.

The present invention is to provide a cooking apparatus capable of gradually heating.

The present invention is to provide a cooking apparatus capable of adjusting the heating amount for the food.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

Embodiments of the cooking appliance according to the present invention proposed as described above, the cavity is formed with an upper surface to be convexly rounded upwards; And heaters spaced apart from the upper surface of the cavity at regular intervals.

Another embodiment of the cooking appliance according to the present invention, the cavity is formed so that the upper surface is convex round upward; And a heater mounted to the cavity and configured to discharge heat into the cavity, wherein the heater includes at least one heater unit that can be selectively assembled to have a variable number.

As described above, according to the cooking appliance according to the present invention, after the heat generated from the heater is stored in the heat storage unit, the heat discharged through the heat storage unit is transferred to the food. Therefore, there is an advantage that heating using heat storage, that is, gradual heating of the food.

In addition, as a method of controlling the number of heating plate units mounted in the cavity, there is an advantage in that the heating amount for the inside of the cavity can be selectively adjusted.

1 is a perspective view of a first embodiment of a cooking appliance according to the present invention;

Figure 2 is a partially exploded perspective view showing a cavity upper structure of a first embodiment of a cooking appliance according to the present invention.

3 is a view showing a tendency to transfer heat in the cavity of the first embodiment of the cooking appliance according to the present invention.

4 is a view showing a state in which the heater unit of the first embodiment of the cooking appliance according to the present invention is separated from the power source.

5 is a view showing a heater connected to the power source of the first embodiment of the cooking appliance according to the present invention.

Figure 6 is a perspective view showing a heating plate unit of a second embodiment of a cooking appliance according to the present invention.

7 is a cross-sectional view showing a combined state of the heating plate unit of the second embodiment of the cooking appliance according to the present invention.

8 is a sectional view showing a burner of a third embodiment of a cooking appliance according to the present invention;

9 is a sectional view showing a burner of a fourth embodiment of a cooking appliance according to the present invention;

Hereinafter, an embodiment of a cooking appliance according to the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view of a first embodiment of a cooking appliance according to the present invention, Figure 2 is a partially exploded perspective view showing a cavity upper structure of the first embodiment of the cooking appliance according to the present invention, Figure 3 is a cooking appliance according to the present invention FIG. 1 is a view showing a tendency for heat to be transferred inside the cavity of the first embodiment of FIG.

Referring to FIG. 1, the cooking apparatus 1 includes a main body 10 provided with a cooking chamber 120 and a door 20 for opening and closing the cooking chamber 120.

In detail, the upper surface 110 of the main body 10 is provided with a first cooking unit. In addition, the first cooking unit includes at least one heating unit 111 disposed on the upper surface 110 of the main body 10. The heating unit 111 may heat the food positioned above the heating unit 111 using at least one of electricity and gas. For example, when electricity is applied, the food is heated using a heater that emits heat, or induction heating is used to generate an induction current in a container containing the food using an electromagnetic field generated when electricity is applied. Various methods of heating the food are possible, such as heating the food directly using a flame when the gas is burned, or heating the combustion heat of the gas through the heat transfer member in a conductive heating manner.

The back guard 113 is provided at the rear of the first cooking unit. The back guard 113 may minimize a phenomenon in which heat generated by the first cooking unit is directly transmitted to a furniture or a wall located at the rear of the cooking apparatus 1.

The second cooking unit is provided below the first cooking unit. The second cooking unit includes a cavity 121 that forms a space for accommodating food therein. That is, the inside of the cavity 121 corresponds to the cooking chamber 120 for receiving and cooking food. In addition, a heating plate 13 is provided inside the cavity 121. Food may be seated on the upper surface of the heating plate 13.

The second cooking unit is provided with a heating unit for heating the food accommodated in the cooking chamber 120. The heating unit may include at least one of a heater using electricity and a burner for burning a gas. At least one of the heating units 140 is installed above the cavity 121.

However, the heating unit may be further installed at other positions such as the lower side and the rear side as well as the upper side of the cavity 121. However, when the food is directly heated by radiant heat of the heating unit, the heating unit is generally located at at least one of the upper side and the lower side of the cavity 121, and the cooking chamber heated by the heating unit ( In the case of heating the food indirectly through the air of 120, the heating unit is generally located at the rear of the cavity 121. However, in the case of an indirect heating method of heating the air of the cooking chamber 120, a fan may be further provided and the cooking efficiency may be further increased when the air of the cooking chamber 120 is convection.

In the present embodiment, the heating plate 13 is also included in the heating unit. The heating plate 13 includes a heater unit 133 that emits heat, and a heat storage unit 132 that stores and releases heat generated by the heater unit 133. A more detailed description of the heating plate 13 will be described later.

On the other hand, one side of the main body 10, an input unit for inputting a signal for controlling the operation of the first cooking unit and the second cooking unit, and the operation state and various information necessary for use of the first cooking unit and the second cooking unit An output unit for outputting is provided. The input unit is preferably located in the front or near the front of the cooking appliance 1, which is easily accessible by the user. In addition, the output unit may be located on the front of the back guard 113, which is easy for the user to recognize, or may be located on the front of the cooking appliance 1.

In addition, one side of the main body 10 is equipped with electrical components for the operation of the first cooking unit and the second cooking unit. In general, since the electrical component is heat sensitive, it is preferable to be located at a portion where the amount of heat transfer of the first cooking unit and the second cooking unit is relatively small. For example, the electrical component may be located on the back guard 113. This is because the temperature of the back guard 113 on the cooking appliance 1 is relatively low compared to other portions.

On the other hand, the door 20 is rotatably installed in front of the main body 10. The door 20 is rotated downward based on the lower end of the door 20 in a rotating direction, rotated upward based on the upper end of the door 20, and the door ( 20) can be installed in various ways, such as rotating in one side or both sides based on one side or both ends. However, in consideration of the weight of the door 20, a method of rotating downward based on the lower end of the door 20 is most preferable.

In addition, the door 20 may be provided with a viewing window for checking the cooking status of the food accommodated in the cavity 121.

Meanwhile, a brick pattern is formed on the front surface of the main body 10 and the rear surface of the door 20 in a shape of stacked bricks. The brick pattern may be formed by recessing or protruding a portion of the front surface of the main body 10 and the rear surface of the door 20. Due to the brick pattern, the user can feel aesthetics, and at the same time, there is an advantage in that a soft feeling such as a fireplace or a fireplace can be obtained.

Referring to FIG. 2, the upper surface of the cavity 121 is convexly rounded upward. In detail, the upper surface of the cavity 121 is rounded so that the center portion of the upper surface of the cavity 121 is positioned highest, and the lower end of both sides of the upper surface of the cavity 121 is positioned lowest. In this case, the upper surface of the cavity 121 may have various shapes such as an arc, an ellipse, or a parabola when viewed from the front.

In addition, the heating unit 140 is installed on the upper surface of the cavity 121 to be spaced apart by the same interval as the upper surface of the cavity 121. That is, the heating unit 140 is located along the upper surface of the cavity 121.

In addition, above the heating unit 140, a reflecting unit 141 is provided to reflect the heat emitted from the heating unit 140 toward the cooking chamber 120. In this case, the reflector 141 is also installed to be spaced apart from the upper surface of the cavity 121 by the same interval, that is, located along the upper surface of the cavity 121.

In addition, a portion of the upper surface of the cavity 121 corresponding to the lower portion of the heating unit 140 is opened, and the heat resistant glass 143 is installed at the opened portion. The heat-resistant glass 143 prevents the heating unit from being contaminated during the cooking of the food contained in the cavity 121, and debris is formed in the cavity 121 when the heating unit 140 is damaged. It plays a role of preventing the inflow into the inside. In addition, the heat-resistant glass 143 is formed of a transparent or semi-transparent material. Therefore, heat energy generated by the heating unit 140 may be directly radiated into the cavity 121 through the heat resistant glass 143.

Referring to FIG. 3, when the upper surface of the cavity 121 has a circular arc shape, that is, a shape spaced apart by an equal distance from an imaginary straight line placed forward and backward in the cavity 121, the heating part 140 may be disposed at the heating part 140. The emitted heat may be reflected by the reflector 141 and concentrated at a point where the virtual straight line is located.

That is, in FIG. 3, when food is cooked in a state A located near the point where the virtual straight line is located, heat emitted from the upper heating part 140 of the cavity 121 is the area A. FIG. Since it can be concentrated in the food, the cooking efficiency can be further improved.

In addition, the heating plate 13 on which the food is seated is formed in a 'c' shape opening upward. In detail, the heating plate 13 includes a horizontal flat plate-like mounting portion for mounting food, and two side portions extending upward from both end portions of the mounting portion. The side portion extends by the same length as the inner surface height of the cavity 121. Therefore, in the state in which the heating plate 13 is mounted to the cavity 121, the side surface portion shields the inner surface of the cavity 121.

In addition, the heating plate 13 includes a heater unit 133 for generating heat, and a heat storage unit 132 for storing and dissipating heat generated by the heater unit 133. The heater 133 is in contact with the inner surface of the cavity 121 in a state in which the heating plate 13 is mounted to the cavity 121. In addition, the heat storage unit 132 is located inside the heater unit 133, and the heat generated from the heater unit 133 in the state in which the heating plate 13 is mounted to the cavity 121 is It is transmitted to the center of the cavity 121 through the heat storage unit 132.

As a result, when the food is placed above the heating plate 13, particularly in the region A, heat may be transferred from all directions surrounding the food. That is, heat is transferred from the upper heating part of the cavity 121 to the upper side of the food, heat is transferred from the side part of the heating plate 13 to the side of the food, and the heating plate 13 is below the food. Heat may be transferred from the seat of the).

Therefore, the food can be cooked in a brick oven manner. In more detail, the brick oven cooking method includes a round paper where a heating source is located along an upper surface of the cavity 121 so that heat generated from the heating source can be concentrated and heat generated by the heater unit 133 is directly. This means that at least one of being gradually transmitted through the heat storage unit 132 is not transmitted to the food. However, according to the cooking apparatus 1, since the rounded portion of the upper portion of the cavity 121 is located along the upper surface of the cavity 121, heat generated from the upper portion of the upper portion of the cavity 121 may be concentrated. At the same time, the heating plate 13 allows gradual heating from both sides and the bottom of the food. That is, it becomes possible to cook by the brick oven system.

Suitable foods to be cooked by the brick oven cooking method may be various ones such as bread, for example. In the case of bread, when heated rapidly, the amount of moisture evaporates and is easy to burn.

Hereinafter, the state in which the heater unit is connected to and disconnected from the power source will be described in detail with reference to the accompanying drawings.

4 is a view showing a state in which the heater unit of the first embodiment of the cooking appliance according to the present invention is separated from the power source, and FIG. 5 is a view illustrating a state in which the heater unit of the first embodiment of the cooking appliance according to the present invention is connected to the power source.

4 and 5, the cooking appliance 1 includes a power connection unit for connecting the heater to a power source. The power connection part includes an electrode part 135, an electrode hole 122 formed in the cavity 121, an opening and closing part that opens and closes the electrode hole 122, and a power supply part provided behind the cavity 121. And 125.

In detail, in a state in which the heater unit 133 is mounted in the cavity 121, an electrode hole for selectively inserting the electrode unit 135 into the cavity 121 corresponding to the electrode unit 135. 122 is formed. In the state in which the electrode unit 135 is connected to a power source, the electrode hole 122 is formed to be larger than the diameter of the electrode unit 135 to prevent a short circuit of electricity to the cavity 121.

The opening and closing part selectively opens and closes the electrode hole 122 in front of the electrode hole 122. More specifically, the opening and closing portion, the shielding member 123 for shielding the electrode hole 122, and the elastic member 124 for pressing the shielding member 123 in the direction to shield the electrode hole 122 It includes. The shielding members 123 are provided one above and one below with respect to the electrode hole 122. At the end portions adjacent to each other in the two shielding members 123, an inclined surface for interfering with the electrode unit 135 is formed in the process of mounting the heating plate 13 to the cavity 121.

The shielding member 123 is installed in a forming part in which a part of the rear surface of the cavity 121 is formed rearward. The shielding member 123 is slidable up and down along the forming part. In addition, an upper portion of the shielding member 123 positioned above the electrode hole 122 is provided with an elastic member 124 that presses the shielding member 123 downward, and below the electrode hole 122. Below the shielding member 123 is provided is provided with an elastic member 124 for pressing the shielding member 123 upwards.

The power supply 125 is fixed to the rear plate 126 provided at the rear of the cavity 121. The power supply 125 is installed toward the front to allow the electrode 135 to be inserted. The power supply 125 is connected to a power supply for supplying electricity.

In addition, an insulation material 128 is provided between the rear surface of the cavity 121 and the rear plate 126 to insulate the cavity 121 from the outside of the cooking appliance 1. At this time, the heat insulator 128 is provided at a portion except for a portion overlapping with the power supply 125 in the front and rear. Therefore, in the process of coupling the electrode unit 135 to the power supply unit 125, the electrode unit 135 may be guided toward the power supply unit 125 by the heat insulating material 128.

Meanwhile, a process in which the heater is connected to a power source, that is, a process in which the electrode unit 135 is connected to the power source 125, is described. First, in order to mount the heating plate 13 to the cavity 121. When sliding backward, the electrode part 135 is also moved backward. When the electrode part 135 comes in contact with the inclined surface of the shielding member 123, the shielding member 123 moves in the vertical direction by the interference of the electrode part 135 and the inclined surface, and the electrode The hole 122 is opened. On the contrary, in the process of separating the heating plate 13 from the cavity 121, the heater is separated from the power source.

Hereinafter, a second embodiment of a cooking appliance according to the present invention will be described in detail with reference to the accompanying drawings. This embodiment differs from the first embodiment in that the heating plate is provided prefabricated.

Figure 6 is a perspective view showing a heating plate unit of a second embodiment of a cooking appliance according to the present invention, Figure 7 is a cross-sectional view showing a combined state of the heating plate unit of a second embodiment of the cooking appliance according to the present invention.

6 and 7, a plurality of at least removable units of the heating plate are included. In detail, the unit of the heating plate includes a coupling protrusion projecting laterally from the end of the unit for coupling with other units, and a coupling groove for receiving the coupling protrusion. More precisely, the first unit 23 and the second unit in such a manner that the engaging projection 334 of the first unit 23 of the plurality of units is received in the engaging groove 236 of the second unit 33. 33 is combined.

In more detail, the coupling protrusion 334 is formed so that the width gradually widens in the direction protruding to the end of the heater portion 233 of the heating plate 23. In addition, the coupling groove 236 is formed in a shape corresponding to the coupling protrusion 334 at an end corresponding to the side opposite to the coupling protrusion 334 on the heater portion of the heating plate 234. In addition, the coupling protrusion 334 and the coupling groove 236 is formed long along the ends of the heaters (233,333).

When the

heating plate units

23 and 33 are coupled to each other, one end of the coupling protrusion 334 of the first unit 33 of the plurality of units is coupled to the coupling groove 236 of the second unit 23. The first unit 33 and the second unit 23 may be coupled to each other by sliding toward one end of the coupling groove 236 of the second unit in a state accommodated at the other end of the second unit. In addition, the method of separating the first unit 33 and the second unit 23 is in the reverse order of the combined method.

Meanwhile, the coupling protrusions 334 and the coupling grooves 236 are provided with

connection parts

238 and 338 which are electrically connected to the

heaters

234 and 334 included in the

heating plates

23 and 33, respectively. The connecting

portions

238 and 338 are positioned at the inclined surfaces of the coupling protrusion 334 and the coupling groove 236. More precisely, in a state in which the first unit 33 including the coupling protrusion 334 and the second unit 23 including the coupling groove 236 are coupled, the connection portion of the coupling protrusion 334 ( 338 and the connecting portion 238 of the coupling groove 236 are in contact with each other at a position corresponding to. Therefore, the heater 334 of the first unit 33 and the heater 234 of the second unit 23 are electrically connected to each other through the

connection parts

238 and 338.

Therefore, by heating the plurality of heating plate units selectively, that is, by controlling the number of the heating plates connected to each other, the heating amount of the heating plate mounted in the cavity can be adjusted. In addition, according to the number of the heating plates connected to each other, the position at which the heating plates are mounted in the cavity may be varied.

Hereinafter, a third embodiment of a cooking appliance according to the present invention will be described in detail with reference to the accompanying drawings. This embodiment is different from the first embodiment in that a burner is provided as a cavity upper heating part.

8 is a sectional view showing a burner of a third embodiment of a cooking appliance according to the present invention.

Referring to FIG. 8, a burner 440 using gas combustion as a heating unit above the cavity 421 is provided.

In detail, the burner 440 is located along the upper surface of the cavity 421. In addition, a reflector 441 for reflecting heat emitted from the burner 440 into the cavity 421 is provided to correspond to the burner 440. At this time, the burner 440 and the reflector 441 are positioned on the same radiation with respect to the center of the arc formed by the upper surface of the cavity 421. In addition, the salt holes 444 formed in the burner 440 are formed in a direction parallel to the tangent of the upper surface of the cavity 421.

According to the above configuration, the heat generated by the burner 440 is uniformly reflected by the reflector 441 to face the inside of the cavity 421. That is, heat generated from the burner 440 may be uniformly radiated into the cavity 421.

However, as in the burner 440, when the food is heated using gas combustion, combustion gas is generated. Therefore, exhaust holes for discharging the combustion gas generated in the burner 440 is essential. At this time, considering that the combustion gas tends to move upward in a state of relatively high temperature, the exhaust hole is preferably formed at the highest position in the space in which the burner 440 is included.

Hereinafter, a fourth embodiment of a cooking appliance according to the present invention will be described in detail with reference to the accompanying drawings. This embodiment differs from the third embodiment in that the salt holes are formed in the horizontal direction and the reflecting portion is provided in a constant posture.

9 is a sectional view showing a burner of a fourth embodiment of a cooking appliance according to the present invention.

Referring to FIG. 9, a burner 540 that is heated by gas combustion is provided as an upper heating part of the cavity 521.

The flame holes 544 of the burner 540 are formed in a horizontal direction. In addition, the upper portion of the burner 540 is provided with a reflector 541 for reflecting heat generated from the burner 540 into the cavity 521 to have a 'V' shape in the vertical direction. Like the salt hole 544, the reflector 541 is fixed to a predetermined posture regardless of the position relative to the upper surface of the cavity 521.

According to the above configuration, the combustion gas generated by the burner 540 may be exhausted toward both sides of the reflector 541 through the reflector 541. In more detail, since the flame holes 544 of the burner 540 are formed in both sides with respect to the burner 540, the flame of the burner 540 also faces both sides of the burner 540. Accordingly, the combustion gas of the burner 540 is also directed to both sides of the burner 540, and the combustion gas which is in a relatively high temperature state rises, and thus the reflection part 541 of the burner 540 It can be exhausted to both sides. As a result, there is an advantage that the combustion gas of the burner 540 can be exhausted more smoothly.

As such, within the scope of the basic technical idea of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the appended claims. will be.

Claims

A cavity having an upper surface formed to be convexly rounded upward; And

And a heater spaced apart from the upper surface of the cavity at regular intervals.
The method of claim 1,

And a reflector provided above the heater and reflecting heat generated by the heater to the inside of the cavity.
The method of claim 2,

The reflector is spaced apart at regular intervals on the upper surface of the cavity.
The method of claim 1,

The cooking appliance provided below the heater, further comprising a heat-resistant glass formed of a transparent or translucent material.
The method of claim 1,

The heater is a cooker which is a burner including a salt hole is discharged gas for combustion.
The method of claim 5,

The salt hole is formed in a horizontal direction, or cooking apparatus is formed in a direction corresponding to the tangent of the upper surface of the cavity.
The method of claim 5,

And a gas discharge hole for discharging the gas at a point corresponding to an uppermost portion of the cavity.
A cavity having an upper surface formed to be convexly rounded upward; And

A heater mounted to the cavity and configured to discharge heat into the cavity;

The heater, cooking apparatus including at least one heater unit that can be selectively assembled so that the number is variable.
The method of claim 8,

At least one heating plate unit selectively mounted in the cavity such that the number is variable;

The heating plate unit,

A heater unit including the heater unit;

And a heat storage unit for storing and dissipating heat generated by the heater unit.
The method of claim 9,

The heating plate unit, cooking apparatus including a connection for connecting the heater unit to a power source.
The method of claim 10,

And a connection part of the first unit and a connection part of the second unit are connected to each other while a first unit and a second unit of the heating plate unit are coupled to each other.