KR101864493B1 - Cooking appliance and method for controlling thereof - Google Patents

Abstract

A cooking apparatus and a control method thereof are disclosed. The disclosed invention includes: a burner installed in a main body of a cooking apparatus, the burner burning a mixed gas of gas and air to form a flame; A gas supply unit for supplying gas to the burner side; A mixed gas supply unit which is provided between the burner and the gas supply unit and in which a premixed space in which the gas supplied from the gas supply unit stays is formed inside and a mixed gas formed by mixing gas staying in the premixed space with air is supplied to the burner, ; And an air supply unit for supplying air to the mixed gas supply unit such that air to be mixed with the gas staying in the preliminary mixed space flows into the preliminary mixing space and an air flow in which the mixed gas formed in the preliminary mixing space flows into the burner is formed .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooker,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooking apparatus and a control method thereof, and more particularly, to a cooking apparatus and a control method thereof provided to provide heat for heating a food in a cooking chamber of an oven or the like.

A cooking device is one of household appliances for cooking food, and is installed in a kitchen space to cook food according to a user's intention. Such cooking devices can be classified into various types according to the heat source or type used and the type of fuel.

Cooking equipment can be classified into open type and closed type cooking equipment depending on the type of space where food is placed. The closed cooking devices include an oven and a microwave oven, and open cooking devices include a cooktop and a hop.

A closed type cooking device is a cooking device that shields a space where food is placed and cooks food by heating a shielded space. The closed type cooking apparatus is provided with a cooking chamber, which is a space that is shielded when the food is placed and food is to be cooked. Such a cooking chamber becomes a space where food is substantially cooked.

In the closed type cooking apparatus, a door for selectively opening and closing the cooking chamber is rotatably provided. The door is rotatably installed in the main body by a main body having a cooking chamber formed therein and a door hinge provided between the main body and the door. The main body can be selectively opened and closed by rotating the main body through a door hinge.

A heat source is provided in the inner space of the cooking chamber opened and closed by the door to heat the cooking chamber. As such a heat source, a gas burner or an electric heater or the like may be used.

In the closed type cooking apparatus in which a gas burner is used as a heat source, a plurality of burners may be provided to heat the food inside the cooking chamber. For example, a broil burner is installed on the upper part of the cooking chamber, and a bake burner is installed on the lower or rear part of the cooking chamber.

Each of the burners is provided with a salt hole through which the mixed gas supplied to the inside of the burner is discharged. The gas mixture discharged from the flue gas is ignited by the ignition device to form a flame, and the gas oven can cook the food by heating the food inside the cooking chamber using the flame generated in this manner.

According to this, a part of air (hereinafter referred to as "primary air") necessary for combustion when gas is supplied into the burner is mixed together with the gas, and thus a mixed gas in which gas and air are mixed is burned in the blaze . Then, fresh air (referred to as "secondary air") flows into the flame side again around the flame at which the combustion is performed, thereby achieving complete combustion.

According to the burning of the burner as described above, only when a sufficient amount of the secondary air is supplied in the process of burning, the complete combustion can be performed, and the thermal efficiency of the burner can be increased.

On the other hand, a convection device may be further provided at the rear of the cooking chamber, and the convection device performs an operation of circulating the air inside the cooking chamber so that heat is uniformly distributed throughout the cooking chamber.

According to the closed type cooking device having the convection device, an inlet for introducing the secondary air supplied to the burner is formed on the rear surface of the cooking chamber, and secondary air is introduced into the vicinity of the burner through the inlet by the operation of the convection device An air flow is formed and the inflow of the secondary air is performed.

However, according to the closed-type cooker having the above-described configuration, even when the convection function is not used, the convection device is driven only for supplying the secondary air, regardless of whether a sufficient amount of the secondary air is supplied for complete combustion. So that not only unnecessary energy loss for driving the convection device is caused but also the external air having a relatively low temperature flows into the secondary air, thereby causing heat loss inside the cooking chamber.

It is an object of the present invention to provide a cooking apparatus and a control method thereof that can provide stable combustion while suppressing unnecessary loss of energy and occurrence of heat loss inside the cooking chamber.

According to an aspect of the present invention, there is provided a combustion apparatus, comprising: a burner installed in a main body of a cooking apparatus and burning a mixed gas of gas and air to form a flame; A gas supply unit for supplying gas to the burner side; A pre-mixed space provided between the burner and the gas supply unit, wherein a pre-mixed space in which the gas supplied from the gas supply unit stays, is formed, and a mixed gas formed by mixing gas staying in the pre- A mixed gas supply unit for supplying the mixed gas; And an air supply unit for supplying air to the mixed gas supply unit such that air for mixing with the gas staying in the preliminary mixing space flows into the preliminary mixing space and air flows through which the mixed gas formed in the preliminary mixing space flows into the burner, And a supply unit.

The mixed gas supply unit may include a surge tank in which the premixed space is formed; A gas inlet formed in the surge tank to form a passage between the surge tank and the gas supply unit, through which gas supplied from the gas supply unit flows into the premixed space; An air inlet formed to penetrate the surge tank and forming a path through which air supplied from the air supply unit flows into the premixed space between the surge tank and the air supply unit; And a mixed gas outlet formed in the surge tank to form a passage through which the mixed gas formed in the premixed space flows into the burner, between the surge tank and the burner.

Wherein the gas inlet, the air inlet, and the mixed gas outlet are arranged to be located on different surfaces of the surge tank, and the mixed gas outlet has a slanting direction from a passing direction of the gas inlet and a passing direction of the air inlet As shown in Fig.

Preferably, the air supply unit includes a blower fan that generates an air flow that sucks outside air and discharges the air into the premixed space.

The gas supply unit, the air supply unit, and the mixed gas supply unit may be disposed on an outer surface of the rear wall of the main body so as to be positioned outside the main body, .

A fan cover having an inlet port and an exhaust port formed in the main body and having a receiving space divided to receive the burner; And a convection fan for generating air circulation flow through which air in the main body is sucked into the accommodating space through the intake port and sucked into the accommodating space and heated air is discharged into the main body through the exhaust port .

The fan cover is disposed on the front surface of the fan cover facing the front of the cooking cavity formed in the main body. The fan cover has a side surface facing the side surface of the cooking chamber and a bottom surface of the fan cover facing the bottom surface of the cooking chamber It is preferable that the exhaust ports are respectively disposed.

According to another aspect of the present invention, there is provided a cooking apparatus comprising: a main body having a cooking chamber formed therein; And a burner installed in the main body to heat the inside of the cooking chamber, wherein the burner includes a burner installed inside the cooking chamber and burning a mixed gas of gas and air to form a flame; A gas supply unit for supplying gas to the burner side; And a pre-mixing space provided between the burner and the gas supply unit to receive a gas supplied from the gas supply unit, and a mixed gas formed by mixing gas contained in the pre-mixing space with air, A mixed gas supply unit for supplying the mixed gas; And an air supply unit for supplying air to the mixed gas supply unit so that air to be mixed with the gas accommodated in the preliminary mixing space flows into the preliminary mixing space and airflow through which the mixed gas formed in the preliminary mixing space flows into the burner is formed, .

It is preferable that the burner is a bake burner installed on the rear surface of the cooking chamber.

It is preferable that the present invention further includes a broiler burner installed on the upper portion of the cooking chamber.

The burner further includes a burner main body having a passage connected to the premixed space formed therein, and a passage formed through the burner main body to discharge air or mixed gas from the inside of the burner main body into the cooking chamber And air discharged into the cooking chamber through the air hole is supplied to the secondary air used for combustion of the blower burner.

According to still another aspect of the present invention, there is provided a control method for a cooking apparatus, wherein the operation of the air supply unit for supplying air to the premixed space is provided in association with opening and closing operations of the valve.

According to another aspect of the present invention, there is provided a control method of a cooking apparatus, the method comprising: opening and closing the valve depending on whether the flame is detected by the flame sensing unit.

In another aspect of the present invention, there is provided a control method of a cooking apparatus, comprising: controlling the operation of the valve and the air supply unit so that only the air is supplied to the preliminary mixing space and the burner body when the broiler burner operates; .

According to the cooking apparatus and the control method therefor of the present invention, the mixed gas in a sufficiently premixed state at a mixing ratio suitable for complete burning of the burner is supplied to the burner without supplying a separate secondary air, It is possible to improve the stability of combustion and to provide an improved thermal efficiency while suppressing the loss of energy and the occurrence of heat loss inside the cooking chamber.

In addition, since the present invention can include a fan cover in which a vent is formed on a side surface as well as a bottom surface, high-temperature air generated inside the convection device is discharged in various directions inside the cooking chamber, In addition, there is an effect that the heat transfer is made through the bottom surface of the cooking chamber, and cooking of the food requiring browning of the bottom can be performed more effectively.

Further, the present invention can provide a box-shaped fan cover that is smaller than the fan cover of the conventional cooking apparatus, thereby providing an effect of expanding the space inside the cooking chamber and improving the aesthetics inside the cooking chamber.

Further, according to the present invention, when the supply of gas to the premixed space through the gas supply unit is interrupted, the operation of the air supply unit is stopped and the air supply to the premixed space is interrupted through the air supply unit, It is possible to prevent occurrence of a phenomenon in which the thermal efficiency is lowered.

Further, according to the present invention, the supply of the secondary air required for burning the blower burner is performed by the air supply unit, so that the combustion stability and thermal efficiency of the blower burner can be improved.

1 is a perspective view schematically showing a cooking apparatus according to an embodiment of the present invention.
2 is a side cross-sectional view showing an internal configuration of a cooking apparatus according to an embodiment of the present invention.
3 is a front view showing an oven structure of a cooking apparatus according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view illustrating a structure of a cooking device according to an embodiment of the present invention.
5 is a rear perspective view showing a rear surface of the fan cover shown in FIG.
FIG. 6 is a rear perspective view illustrating a configuration of the cooking apparatus according to an embodiment of the present invention, which is located outside the cooking chamber.
7 is a perspective view illustrating the structure of a combustion apparatus according to an embodiment of the present invention.
FIG. 8 is a view showing a state of air flow in a cooking chamber generated by an operation of a combustion apparatus according to an embodiment of the present invention. FIG.
FIG. 9 is a schematic view showing a configuration of a cooking device according to an embodiment of the present invention.
FIG. 10 is a view schematically showing the state of supplying secondary air to the blower burner, which is induced by the operation of the cooking apparatus shown in FIG.

Hereinafter, an embodiment of a cooking apparatus and a control method thereof according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically showing a cooking device according to an embodiment of the present invention, and FIG. 2 is a side sectional view showing an internal configuration of a cooking device according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, a shelf support apparatus and a cooking apparatus having the shelf support apparatus according to an embodiment of the present invention are formed with an outer appearance by a main body 10. The main body 10 may be formed in a shape including a substantially rectangular parallelepiped shape and is formed of a material having a predetermined strength to protect a plurality of parts provided in the inner space.

At the upper end of the main body 10, there is a cooktop portion 20 provided for cooking food by heating the opened space, that is, the container containing the food or the food placed on the upper side.

The cook top part (20) is provided with a top plate (21) for supporting a container containing food or food to be cooked while forming an upper surface appearance.

At least one or more burners 22 for heating a container containing food or food to be cooked may be provided on the upper side of the upper plate 21, .

And an oven unit 30 is installed below the cooktop unit 20. In the inner space of the oven part (30), a cooking chamber (31) for providing space for cooking food is located.

The cooking chamber 31 is formed in the shape of a hexahedron having an open front face, and the inner space of the cooking chamber 31 is heated to cook the food while the cooking chamber 31 is shielded. That is, in the oven portion 30, the inner space of the cooking chamber 31 is a space where food is cooked substantially.

In the oven part (30), a door (32) for selectively opening and closing the cooking chamber (31) is rotatably provided. The door 32 can open and close the cooking chamber 31 in a pull-down manner in which the upper end of the door 32 rotates up and down around the lower end thereof.

The door 32 is formed in a hexahedron shape having a predetermined thickness as a whole. On the front surface of the door 32, a handle 33 is provided so that the user can grasp the door 32 when the door 32 is to be rotated. The user can easily rotate the door 32 by the handle 33. [

A control panel 51 is provided on the front surface of the cooktop portion 20, that is, above the door 32. The control panel 51 may be in the form of a hexahedron having a predetermined internal space and a control panel 51 may be provided on the front of the control panel 51. The control panel 51 may include an input unit for inputting operation signals for operating the cooktop unit 20 and the oven unit 30, (52) is provided.

The input unit 52 is provided with a plurality of operation switches through which a user can directly input operation signals.

Further, the control panel 51 may further include a display unit for providing operation information of the cooking appliance, cooking information of the food, and the like, and the user can confirm various information regarding the shelf support device and the cooking device equipped with the display device .

An electric field chamber 50 is provided in the space between the cooktop portion 20 and the oven portion 30 to provide a space in which electrical components are located. The control panel 51 is disposed on the front surface of the electrical component chamber 50 and the control panel 51 substantially shields the front surface of the electrical component chamber 50. [

FIG. 3 is a front view showing an oven structure of a cooking device according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of the cooking device according to an embodiment of the present invention, And FIG. 5 is a rear perspective view showing a rear surface of the fan cover shown in FIG. 6 is a rear perspective view illustrating a configuration of the cooking device according to an embodiment of the present invention, and FIG. 7 is a perspective view illustrating a configuration of a combustion device according to an embodiment of the present invention .

2 to 7, the oven unit 30 of the cooking apparatus according to the embodiment of the present invention is provided with a combustion apparatus 100. The combustion apparatus 100 is installed in the main body 10 and is adapted to heat the interior of the cooking chamber 31 inside the oven unit 30. The combustion apparatus 100 includes a burner 110, a gas supply unit 120, a mixed gas supply unit 130, And an air supply unit 140.

The burner 110 is installed inside the main body 10, more specifically, inside the cooking chamber 31, and is formed to burn a mixed gas of gas and air to form a flame.

In this embodiment, it is exemplified that the burner 110 is provided in the form of a bake burner installed on the rear surface of the cooking chamber 31.

According to this, the burner 110 may be provided in a form in which a plurality of air holes 113 are formed on the side of the burner main body 111, which is formed in such a manner that the hollow pipe is extended to form a curved line of "U" shape.

The air hole 113 forms a passage through which the gas supplied into the burner main body 111 is discharged to the outside of the burner main body 111.

A plurality of salt balls may be disposed on the side of the burner main body 111 at predetermined intervals along the extending direction of the burner main body 111, Gas discharge passages can be provided.

According to this embodiment, the burner main body 111 is supplied with the mixed gas from the mixed gas supply part 130 connected to the burner main body 111, and the mixed gas supplied to the flow path inside the burner main body 111, The flame is generated outside the burner main body 111 by burning.

On the other hand, the combustion apparatus of this embodiment may further include a convection device. The convection device is provided to circulate the air inside the cooking chamber so as to uniformly distribute heat throughout the cooking chamber, and may include a fan cover 150 and a convection fan 160.

The fan cover 150 is provided on the rear side of the main body 10, more specifically, on the inner side of the rear wall of the cooking chamber 31. The fan cover 150 defines a receiving space defined inside the cooking chamber 31. The fan cover 150 is provided with an air inlet 151 and an air outlet 153.

In this embodiment, the fan cover 150 is illustrated as being provided in the form of a polygonal, flat-shaped, open side facing the rear wall of the cooking chamber 31. According to the fan cover 150, the inlet port 151 is disposed on the front surface of the fan cover 150 facing the front of the main body 10, that is, facing the door 32. The outlet port 153 is disposed in the cooking chamber 31 on the side of the fan cover 150 facing the side surface and the bottom surface of the fan cover 150 facing the bottom surface of the cooking chamber 31.

The convection fan 160 is disposed in the receiving space inside the fan cover 150. The operation of the convection fan 160 may be such that the convection fan 160 connected to the convection fan 160 drives the convection fan 160 to generate the airflow. The air in the cooking chamber 31 is sucked into the receiving space inside the fan cover 150 through the inlet port 151 and sucked into the receiving space inside the fan cover 150 to be heated It is possible to generate an air circulation flow through which the air is exhausted to the cooking chamber 31 through the exhaust port 153. [

In addition, the cooking apparatus of the present embodiment may further include a burner cover 170. The burner cover 170 may be formed in a manner to be positioned in a receiving space inside the fan cover 150 and coupled to a pair of cover plates separated in the forward and backward directions. In the interior of the burner cover 170, a space is formed in which the burner 110 is accommodated and the flame generated in the burner 110 is surrounded from the outside.

The burner cover 170 thus provided stabilizes the flame generated in the burner 110 by limiting the area where the flame generated from the burner 110 is diffused and the flame is generated in the fan cover 150 and the cooking chamber 31 For example, to block direct contact with the wall surface.

In addition, the cooking apparatus of the present embodiment may further include a reflecting plate 175. The reflector plate 175 is provided to be positioned in the receiving space inside the fan cover 150 and positioned between the burner cover 170 and the rear wall of the cooking chamber 31. The reflector plate 175 is partially shielded from the heat generated by the flame generated in the burner 110 from being transmitted to the rear wall of the cooking chamber 31 so that a coating layer such as an enamel formed on the surface of the cooking chamber 31 It can be installed for protection against heat damage.

The gas supply unit 120 is provided to supply gas to the burner 110 side. The gas supply unit 120 is installed on the outer surface of the rear wall of the cooking chamber 31 so as to be located on the outside of the main body 10 and more specifically on the outside of the cooking chamber 31. The gas supply pipe 121 and the valve 123 ).

The gas supply pipe 121 is provided so as to form a passage for supplying the gas supplied from the gas supply source outside the cooking apparatus to the premixed space a in the mixed gas supply unit 130 to be described later. The valve 123 is provided to open and close the gas supply pipe 121 to intermit the gas supply to the premixed space a through the gas supply pipe 121.

In addition, the gas supply unit 120 may further include a regulator 125. The regulator 125 serves to reduce the pressure of the high-pressure gas supplied from the external gas supply source to the gas supply pipe 121 to a level suitable for burning the burner 110.

The mixed gas supply unit 130 is provided between the burner 110 and the gas supply unit 120 and installed on the rear wall of the cooking chamber 31 so as to be located outside the cooking chamber 31. A premixed space (a) in which the gas supplied from the gas supply unit (120) temporarily stays before being supplied to the burner (110) is formed in the mixed gas supply unit (130). The mixed gas supply unit 130 in which the premixed space a is formed is configured to mix the gas staying in the premixed space a with the air supplied by the air supply unit 140, The mixed gas can be supplied to the burner 110. The mixed gas supply unit 130 may include a surge tank 131, a gas inlet 133, an air inlet 135, and a mixed gas outlet 137.

The surge tank 131 is provided on the rear wall of the cooking chamber 31 so as to be located outside the cooking chamber 31, In this embodiment, it is exemplified that the surge tank 131 is formed in a hexahedron box shape in which a space is formed therein.

The surge tank 131 is provided with a premixed space a and a gas inlet 133, an air inlet 135 and a mixed gas outlet 137 are formed on a wall surface of the surge tank 131 . The surge tank 131 may be connected to the gas supply unit 120, the air supply unit 140, and the burner 110 through the gas inlet 133, the air inlet 135, and the mixed gas outlet 137 .

The gas inlet 133 is formed to penetrate the wall surface of the surge tank 131. The gas inlet 133 is connected to the gas supply pipe 121 of the gas supply unit 120 and supplies the gas supplied from the gas supply unit 120 to the surge tank 131 And the gas supply part 120.

The air inlet 135 is formed to penetrate the wall surface of the surge tank 131 at a position different from the gas inlet 133. The air inlet 135 is connected to the air supply unit 140 and connects a path through which the air supplied from the air supply unit 140 flows into the premixed space a between the surge tank 131 and the air supply unit 140 .

The mixed gas discharge port 137 is formed to penetrate the wall surface of the surge tank 131 at a position different from the gas inlet 133 and the air inlet 135. The mixed gas discharge port 137 is connected to the burner 110 and a path through which the mixed gas formed in the premixed space a flows into the burner 110 is formed between the surge tank 131 and the burner 110 do.

According to the present embodiment, the gas inlet 133, the air inlet 135, and the mixed gas outlet 137 are disposed on different surfaces of the surge tank 131. The mixed gas discharge port 137 is formed so as to penetrate in a direction deviated from the passing direction of the gas inlet 133 and the passing direction of the air inlet 135.

For example, if the gas inlet 133 is formed so as to pass through the bottom surface of the surge tank 131 in the vertical direction, the air inlet 135 is formed to penetrate laterally to the side surface of the surge tank 131, The discharge port 137 is formed so as to penetrate through the front surface of the surge tank 131, which faces the rear wall of the cooking chamber 31, in the forward and backward directions.

Accordingly, in the premixed space (a) inside the surge tank 131, the inflow of gas and the inflow of air are performed in different directions. Therefore, compared with the case where inflow of gas and inflow of air are performed in the same direction, The mixing of the air can be performed more smoothly.

In addition, since the direction of gas and air mixed in the premixed space (a) is different from the direction of discharge of the mixed gas mixed in the premixed space (a), the flow direction of the gas and air and the discharge direction The mixing time of the gas and the air can be further secured in the premixing space a. As a result, the generation of the mixed gas in the premixed space (a) can be more effectively performed, and the generation of the mixed gas at the desired mixing ratio can be performed with high accuracy.

The air supply unit 140 is configured to supply the air to be mixed with the gas staying in the premixed space a formed in the mixed gas supply unit 130 to the premixed space a and to mix the mixed gas formed in the premixed space a The air is supplied to the mixed gas supply unit 130 so that a gas flowed into the burner 110 is formed.

According to the present embodiment, the air supply unit 140 may include a blower fan that generates an air flow that sucks the outside air and discharges it to the premixed space side. The air supply unit 140 may be installed on the side of the surge tank 131 and may have a discharge port connected to an air inlet 135 formed on a side surface of the surge tank 131 .

In addition, the combustion apparatus 100 of the present embodiment may further include an igniter 180 and a flame detection unit 185 (see FIG. 8). The igniter 180 is provided at a position adjacent to the burner 110 and is provided to generate a flame or heat to ignite the mixed gas supplied to the burner 110. The flame detecting unit 185 is provided at a position adjacent to the burner 110 to detect a flame generated by the burning of the mixed gas of the burner 110. The flame detecting unit 185 may be provided in a form using a thermocouple or a thermistor.

FIG. 8 is a view showing a state of air flow in a cooking chamber generated by an operation of a combustion apparatus according to an embodiment of the present invention, and FIG. 9 is a schematic view showing a configuration of a cooking apparatus according to an embodiment of the present invention And is a diagram schematically showing a state of supplying secondary air to the blower burner induced by the operation of the cooking apparatus shown in FIG. 10, FIG.

Hereinafter, the control method of the cooking apparatus and the actions and effects according to the present embodiment will be described with reference to FIGS. 2 to 10. FIG.

2 to 7, a burner 110 in the form of a bake burner is provided in an oven 30 of a cooking apparatus according to an embodiment of the present invention. And a convection fan 160. The convection fan 160 is installed in the inside of the convection device.

The burner 110 installed as described above is configured such that the mixed gas supplied to the flow path inside the burner main body 111 provided to extend in a shape of a curve of a U shape flows out of the burner main body 111 through the air hole 113 So that it can be operated in the form of generating a flame in the space outside the burner main body 111, that is, in the inside of the fan cover 150. By the flame generated by the burning of the burner 110, the air is heated to a high temperature in the accommodation space formed inside the fan cover 150.

When the convection fan 160 is operated while air is being heated in the accommodation space formed inside the fan cover 150 as described above, the air in the cooking chamber 31 flows through the air inlet 151 to the inside of the fan cover 150 And the heated air sucked into the accommodating space inside the fan cover 150 is discharged to the cooking chamber 31 through the exhaust port 153. Thereby,

A forced circulation flow in which the heat generated by the burning of the burner 110 is uniformly transferred to the entire cooking chamber 31 is generated in the cooking chamber 31. As a result, The cooked food can be cooked in such a manner that the whole food is evenly heated and heated quickly.

The supply of the mixed gas necessary for the combustion of the burner 110 generating the heat used for the internal heating of the cooking chamber 31 as described above is performed by the operation of the gas supply unit 120 and the air supply unit 140, (130). ≪ / RTI >

The gas supply unit 120 supplies gas to the premixed space a in the mixed gas supply unit 130 and the air supply unit 140 supplies air to the premixed space a. The gases and air introduced into the premixed space (a) are mixed with each other in the premixed space (a) to form a mixed gas.

In this case, in the premixed space (a), the inflow of gas and the inflow of air are performed in different directions, and the inflow of gas and air into the premixed space (a) and the discharge of the mixed gas mixed in the premixed space The mixing of the gas and air can be performed more smoothly in the premixing space (a), and the mixing of the gas and air can be performed more smoothly.

The gas mixture in the premixing space a can be supplied to the burner 110 in such a manner that the mixed gas can be supplied to the burner 110 in a state where the mixing of gas and air is sufficiently performed by the mixture gas supply unit 130 do.

The mixing ratio of the mixed gas generated by mixing the gas and the air in the mixed gas supplying unit 130 may be appropriately adjusted by controlling the operation of the gas supplying unit 120 and the air supplying unit 140.

For example, the degree of pressure reduction of the gas produced by the regulator 125 is controlled to adjust the flow rate of the gas flowing into the premixing space a, while controlling the rotational speed of the blower fan to adjust the pre- The mixed gas is generated at a mixing ratio suitable for complete burning of the burner 110 in the mixed gas supply unit 130. By mixing the mixed gas in a state of sufficiently premixed at a mixing ratio suitable for complete combustion So that gas can be supplied to the burner 110.

As described above, the mixed gas introduced into the burner 110 is discharged to the outside of the burner 110 through the air hole 113. The mixed gas thus discharged is ignited by the spark generated by the igniter 180, And can be burned.

In the case of conventional cooking equipment, the burning of the burner is performed by injecting a part of the air (hereinafter referred to as "primary air") necessary for combustion when the gas is injected from the nozzle into the inside of the burner, , And the mixed gas in which the gas and the air are mixed is burned in the blaze. Then, fresh air (referred to as "secondary air") flows into the flame side again around the flame at which the combustion is performed, thereby achieving complete combustion.

The supply of the secondary air required for complete burning of the burner in the conventional cooking apparatus is carried out in such a manner that the outside air flows into the receiving space inside the fan cover, that is, around the burner. For this purpose, the cavity forming the skeleton of the cooking chamber is formed with an inlet port for introducing outside air into the surroundings.

In the burner of the conventional cooking apparatus having such a structure, when a mixed gas of gas and primary air is ignited and a flame is formed, the outside air is supplied to the periphery of the flame through the inlet port as secondary air, . At this time, the inflow of the secondary air through the inlet is induced by the airflow generated by the rotation of the convection fan.

However, according to the conventional cooking apparatus, even when the convection function is not used, it is necessary to drive the convection device only for supplying the secondary air, regardless of whether a sufficient amount of the secondary air is supplied for complete combustion Not only unnecessary energy loss for driving the convection device occurs but also a problem of generating heat loss inside the cooking chamber due to the introduction of the outside air having relatively low temperature into the secondary air.

Compared with this, the combustion apparatus 100 of the present embodiment uses the gas supply unit 120, the air supply unit 140, and the mixed gas supply unit 130 so that the mixed gas, which is sufficiently premixed at a mixing ratio suitable for complete combustion, (110), it is possible to provide stable combustion without additional additional secondary air supply.

Further, according to the conventional cooking apparatus, since a wall surface for guiding the flow of the secondary air introduced through the inlet port to the burner side is required, the fan cover has a shape in which the lower portion thereof extends to the bottom surface of the cooking chamber do. Therefore, the size of the fan cover of the conventional cooking appliance becomes larger than necessary, and the structure of the fan cover can not be formed on the bottom surface of the fan cover.

In contrast, in the cooking apparatus of the present embodiment, it is not necessary to form an inlet port in the cavity forming the skeleton of the cooking chamber 31. Accordingly, the fan cover 150 and the lower portion thereof are formed in a shape extending to the bottom surface of the cooking chamber 31 As shown in FIG.

The fan cover 150 of the present embodiment can be formed in a box shape that is smaller than the fan cover of the conventional cooking apparatus. The inside of the cooking chamber 31 in which the fan cover 150 formed in a compact box shape as described above is installed provides an effect of expanding the space and an improvement in aesthetics.

In addition, the fan cover 150 formed in a compact box shape as described above can be provided in a form having an exhaust port 153 formed on the bottom surface as well as the side surface thereof, as shown in FIGS. When the exhaust port 153 is formed on the bottom surface of the fan cover 150 as described above, the high temperature air generated in the convection device can be discharged into the cooking chamber 31 in various directions, resulting in burning of the burner 110 It is possible to more evenly distribute the heat generated by the convection function to the entire cooking chamber 31, so that the cooking of the food made by the convection function can be more effectively performed.

Also, since the fan cover 150 is provided on the bottom surface of the bottom of the cooking chamber 31 as described above, heat transfer is also performed through the bottom surface of the cooking chamber 31. Therefore, The cooking can be performed more effectively.

2 and 9, the operation of the air supply unit 140 for supplying air to the premixed space a in the course of the burning of the burner 110 is controlled by the operation of the valve 123 The control of the cooking device can be performed in a manner interlocked with the opening and closing operation.

When the valve 123 closes the gas supply pipe 121 and cuts off gas supply to the premixed space a through the gas supply unit 120, the operation of the air supply unit 140 is stopped, The supply of air to the premixing space (a) through the supply part 140 is cut off.

Thus, only external air is supplied to the inside of the cooking chamber 31 through the gas supply unit 120 when the gas supply and the burning of the burner 110 are not performed, It is possible to prevent the phenomenon in which the thermal efficiency of the combustion apparatus 100 is lowered.

According to the present embodiment, the operation of the gas supply unit 120 for supplying the gas into the premixed space a during the burning process of the burner 110 is dependent on the flame detection of the flame detection unit 185 The control of the cooking device can be performed.

When the flame of the burner 110 is not detected for a predetermined number of times or more despite the ignition operation of the igniter 180, the valve 123 closes the gas supply pipe 121, it is possible to prevent the unnecessary supply of gas and the risk of fire due to this by blocking the gas supply to the gas supply line (a).

The opening and closing operation of the valve 123 is controlled by detecting the flame of the flame detecting unit 185 and the operation of the air supplying unit 140 is linked to the opening and closing operation of the valve 123 controlled in this way Do.

In addition, the cooking apparatus of the present embodiment may be provided in a form further including a blower burner 110, as shown in Figs.

The broiler burner 110 is installed on the upper portion of the cooking chamber 31 to heat the internal space of the cooking chamber 31 from the upper portion and feeds and combusts the mixed gas in the same manner as the burner 110, In a state in which it is heated.

The cooking apparatus of this embodiment having such a broiler burner 110 may perform cooking using the combustion apparatus 100 or may perform cooking using the broiler burner 110. [

When cooking using the broiler burner 110 is performed in the cooking apparatus of the present embodiment, in the state where the gas supply through the gas supply unit 120 is stopped, the external air is supplied through the air supply unit 140, Can be controlled.

The operation of the valve 123 and the air supply unit 140 is controlled so that only the air is supplied to the premixing space a when the burning operation is performed according to the operation of the blower burner 110, Air supply can be made.

The air supplied to the burner 110 is discharged to the outside of the burner 110 through the air hole 113 It is possible to contribute to the complete combustion of the blower burner 110 and to stabilize the flame by being supplied to the secondary air used for combustion.

According to the above-described combustion apparatus, the cooking apparatus having the same, and the control method thereof, the mixed gas in a sufficiently premixed state at a mixing ratio suitable for complete burning of the burner 110 without supplying a separate secondary air, The supply of the secondary air can reduce the unnecessary energy loss and the occurrence of heat loss inside the cooking chamber, and can improve the stability of the combustion and provide the improved thermal efficiency.

Also, according to the combustion apparatus of the present embodiment, the cooking apparatus having the same, and the control method thereof, since the fan cover 150 having the vent 153 formed on the bottom surface as well as the side surface can be provided, The air of the cooking chamber 31 can be discharged in various directions inside the cooking chamber 31 and can be more evenly distributed to the entire cooking chamber 31 as well as allowing the heat to be transmitted through the bottom side of the cooking chamber 31, It is possible to more effectively carry out the cooking of the required food.

Also, according to the combustion apparatus of the present embodiment, the cooking apparatus having the same, and the control method thereof, the box-shaped fan cover 150, which is smaller than the fan cover of the conventional cooking apparatus, It is possible to obtain an effect of improving the feel of the inside of the cooking chamber 31 and improving the effect.

According to the combustion apparatus of the present embodiment and the cooking apparatus and the control method thereof, when the gas supply to the premixed space a through the gas supply unit 120 is interrupted, the operation of the air supply unit 140 is stopped, The supply of air to the premixed space a through the heat exchanger 140 is blocked so that the temperature inside the cooking chamber 31 is lowered and the thermal efficiency of the combustion apparatus 100 is lowered. have.

According to the combustion apparatus, the cooking apparatus having the same, and the control method of the present invention, the supply of the secondary air required for burning the blower 110 is performed by the air supply unit 140, The combustion stability and the thermal efficiency of the fuel cell can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

10: Body
20: cook top
30: oven part
34: Broiler Burner
50: battlefield room
100: Combustion device
110: Burner
111: Burner body
113:
120: gas supply unit
121: gas supply pipe
123: Valve
125: Regulator
130: Mixed gas supply part
131: Surge tank
133: gas inlet
135: Air inlet
137: Mixed gas outlet
140: Air supply
150: Fan cover
151: Intake port
153: Exhaust
160: Convection fan
165: Convection motor
170: Burner cover
175: Reflecting plate
180: igniter
185: Flame detection unit

Claims (14)

A body having a cooking chamber formed therein;
A broiler burner installed on the upper portion of the cooking chamber; And
And a combustion device installed in the main body and heating the inside of the cooking chamber,
The combustion apparatus includes:
A burner installed inside the main body of the cooking apparatus for burning a mixed gas of gas and air to form a flame;
A gas supply unit for supplying gas to the burner side;
A pre-mixed space provided between the burner and the gas supply unit, wherein a pre-mixed space in which the gas supplied from the gas supply unit stays, is formed, and a mixed gas formed by mixing gas staying in the pre- A mixed gas supply unit for supplying the mixed gas; And
An air supply unit for supplying air to the mixed gas supply unit so that air to be mixed with the gas staying in the premixed space flows into the premixed space and an air flow in which the mixed gas formed in the premixed space flows into the burner is formed, Lt; / RTI >
The burner includes a burner main body in which a flow path connected to the premixed space is formed, and a passage formed through the burner main body to discharge air or a mixed gas inside the burner main body into the cooking chamber Comprising:
And air discharged into the cooking chamber through the air hole is supplied as secondary air used for combustion of the blower burner.
2. The fuel cell system according to claim 1,
A surge tank having the premixed space formed therein;
A gas inlet formed to penetrate the surge tank and forming a passage between the surge tank and the gas supply unit, through which gas supplied from the gas supply unit flows into the premixed space;
An air inlet formed to penetrate the surge tank and forming a path through which air supplied from the air supply unit flows into the premixed space between the surge tank and the air supply unit; And
And a mixed gas outlet formed in the surge tank so as to form a passage through which the mixed gas formed in the premixed space flows into the burner, between the surge tank and the burner.
3. The method of claim 2,
The gas inlet, the air inlet, and the mixed gas outlet are arranged to be located on different surfaces of the surge tank,
Wherein the mixed gas discharge port is formed so as to penetrate in a direction deviated from a passing direction of the gas inlet and a passing direction of the air inlet.
The method according to claim 1,
Wherein the air supply unit includes a blower fan for generating an air flow sucking the outside air and discharging the outside air to the premixed space side.
The method according to claim 1,
Wherein the burner is installed on an inner surface of the rear wall of the main body so as to be positioned inside the main body,
Wherein the gas supply unit, the air supply unit, and the mixed gas supply unit are installed on the outer surface of the rear wall of the main body so as to be positioned outside the main body.
The method according to claim 1,
A fan cover having a housing space formed therein for housing the burner, the fan cover having an intake port and an exhaust port; And
And a convection fan for generating air circulation flow through which air in the main body is sucked into the accommodating space through the intake port and sucked into the accommodating space and heated air is discharged into the main body through the exhaust port Cooking appliances.
The method according to claim 6,
The fan cover is disposed on the front surface of the fan cover facing the front of the cooking cavity formed in the main body. The fan cover has a side surface facing the side surface of the cooking chamber and a bottom surface of the fan cover facing the bottom surface of the cooking chamber And the air outlets are respectively arranged.
delete The method according to claim 1,
Wherein the burner is a bake burner installed on a rear surface of the cooking chamber.
delete delete A control method of a cooking appliance for controlling operation of the cooking appliance according to claim 1,
The cooking apparatus further comprises a broiler burner installed on the upper portion of the cooking chamber and operated to burn the mixed gas and heat the inside of the cooking chamber,
The burner includes a burner main body in which a flow path connected to the premixed space is formed, and a passage formed through the burner main body to discharge air or a mixed gas inside the burner main body into the cooking chamber And < RTI ID = 0.0 >
Wherein the operation of the valve and the air supply unit is controlled so that only air is supplied to the premixed space and the inside of the burner body when the broiler burner operates.
13. The method of claim 12,
Wherein the gas supply unit includes a gas supply pipe forming a passage for supplying gas to the premixed space, and a valve for opening and closing the gas supply pipe,
Wherein the operation of the air supply unit for supplying air to the premixed space is interlocked with the opening and closing operation of the valve.
14. The method of claim 13,
The combustion apparatus may further include a flame detecting unit for detecting a flame generated by the combustion of the mixed gas in the burner,
Wherein the opening / closing operation of the valve is dependent on the flame detection of the flame sensing unit.

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