KR102245314B1 - Cooking appliance - Google Patents

Abstract

Disclosed is a cooking appliance. The disclosed invention includes: a main body having a cooking chamber formed therein and including a rear surface defining a rear boundary surface of the cooking chamber, a lower surface defining a lower boundary surface of the cooking chamber, and a side surface defining a lateral boundary surface of the cooking chamber; A lower case provided under the lower surface and having an accommodation space formed therein; A lower heating unit installed in the accommodation space to generate heat; A first discharge port defining a passage for opening the inside of the lower case in which the receiving space is formed to the outside; A second discharge port forming a lateral passage for opening the inside of the cooking chamber to the outside; And a flow path connecting member forming a guide flow path through which the heat discharged through the first discharge port flows toward the second discharge port.

Description

Cooking equipment{COOKING APPLIANCE}

The present invention relates to a cooking appliance, and more particularly, to a cooking appliance used to cook food.

A cooking appliance is an appliance that is installed in a kitchen space as one of household appliances for cooking food and cooks food according to a user's intention. These cooking appliances can be classified in various ways according to the type or type of heat used and the type of fuel.

When cooking appliances are classified according to the type of cooking food, they can be classified into open and closed cooking appliances according to the type of space in which food is placed. Closed cooking appliances include ovens and microwaves, and open cooking appliances include cooktops and hops.

A sealed cooking apparatus is a cooking apparatus that shields a space where food is located and heats the shielded space to cook food. In the sealed cooking appliance, a cooking chamber is provided, which is a space shielded when food is to be cooked while food is placed. Such a cooking chamber becomes a space in which food is substantially cooked.

In the sealed cooking appliance, a door for selectively opening and closing the cooking chamber is provided to be rotatable. The door is rotatably installed on the main body by a door hinge provided between the main body and the door in which the cooking chamber is formed, and can selectively open and close the cooking chamber by rotating around a portion coupled to the main body through the door hinge.

A heat source is provided in the interior 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 may be used.

Among them, a gas burner may be provided with a plurality of burners in order to heat the food in the cooking chamber in a closed cooking appliance in which a gas burner is used as a heat source. For example, a broil burner is installed in the upper portion of the cooking chamber, and a bake burner is installed in the lower or rear portion of the cooking chamber.

In addition, a convection device may be further provided at the rear of the cooking chamber. The convection device performs an operation of circulating air inside the cooking chamber so that heat is evenly transmitted to the entire cooking chamber, and may include a fan cover installed on the rear wall of the cooking chamber and a convection fan installed in the inner space of the fan cover.

The fan cover is provided with an intake port and a discharge port, of which the intake port is formed at the front center of the fan cover facing the door, and the discharge port is formed at the side of the fan cover facing the side of the cooking compartment.

In addition, the convection fan rotates inside the fan cover and is operated to generate airflow.In this way, the convection fan is operated so that air from the cooking chamber is sucked into the fan cover through the intake port, and the heated air inside the fan cover is sucked into the fan cover through the exhaust port. It can create a circulating flow of air discharged to the cooking compartment.

Meanwhile, the cooking apparatus including the bake burner may be divided into a probake type cooking apparatus and a bottom bake type cooking apparatus according to an installation type of the bake burner.

Among them, the pro bake type cooking apparatus is configured in a form in which a bake burner is installed at the rear of the cooking chamber, and a bake burner is disposed in a convection device. In such a pro bake type cooker, heat generated inside the convection device by combustion of the bake burner is rotated inside the pan cover and can be evenly transferred to the entire cooking chamber by the action of the convection pan that generates airflow.

That is, the pro bake type cooking apparatus has a characteristic of uniformly heating food in the cooking chamber by allowing heat generated from the bake burner to be evenly transmitted to the entire cooking chamber by the action of a convection pan installed inside the convection apparatus.

However, such a pro-baking type cooking device is advantageous for uniform heating of food in the cooking room, but has a function of intensively heating a portion of the food, for example, the bottom of the food is cooked in a more crispy shape. There is a disadvantage that it is difficult to implement the function of intensively heating the noodles.

In comparison, in the bottom bake type cooking appliance, a bake burner is installed in a lower portion of the cooking chamber. Such a bottom bake type cooking device is advantageous in implementing the function of intensively heating the bottom of the food by allowing heat generated by the bake burner to be transferred from the lower side of the food in the cooking chamber, but it is advantageous to heat the food in the cooking chamber evenly. There is a difficult drawback.

An object of the present invention is to provide a cooking apparatus capable of effectively shortening a cooking time as well as providing a uniform heating function and an intensive heating function.

The cooking appliance according to the present invention includes: a main body having a cooking chamber formed therein, a rear surface defining a rear boundary surface of the cooking chamber, a lower surface defining a lower boundary surface of the cooking chamber, and a side surface defining a lateral boundary surface of the cooking chamber, and ; A lower case provided below the lower surface and having an accommodation space formed therein; A lower heating unit installed in the receiving space to generate heat; A first discharge port defining a passage for opening the inside of the lower case in which the receiving space is formed to the outside; A second discharge port defining a lateral passage for opening the inside of the cooking chamber to the outside; And a flow path connecting member forming a guide flow path through which the heat discharged through the first discharge port flows toward the second discharge port.

In addition, the flow path connecting member includes a duct portion installed outside the cooking chamber to form an outer wall surrounding the guide flow passage from the outside, and a coupling portion coupling the duct portion to at least one of the lower case and the side portion. It is preferable that the guide flow passage forms a passage connecting the first discharge port and the second discharge port in a space surrounded by the duct part.

In addition, the duct part may include a first duct part forming an outer wall surrounding a periphery of the first discharge port; And a second duct part forming an outer wall surrounding the periphery of the second discharge port.

In addition, the main body may include a lower space portion provided under the main body and forming a space separated from the cooking chamber below the cooking chamber, and a lower space portion provided on a side of the main body and providing a space separated from the cooking chamber on a side of the cooking chamber. Further comprising a side space to form, the lower case is installed inside the lower space, and the first duct is inserted into a space formed between the lower case and the lower surface within the lower space, It is preferable that it is installed in close contact with the lower case, and the second duct part is installed in close contact with the side part inside the side space part.

In addition, the second discharge port is formed to pass through the side portion, and the lower case includes a side wall portion defining a lateral boundary surface of the accommodation space and through which the first discharge port passes, and the side wall portion is It is disposed to be located in the lateral direction, the duct portion is formed by connecting the first duct portion and the second duct portion to form a "b" shape, and the first duct portion is installed in close contact with the side wall portion, It is preferable that the second duct portion is installed in close contact with the side portion.

In addition, it is preferable that the present invention further includes a hot air guide unit for converting a flow direction of the hot air flowing upward through the guide flow path to a direction passing through the second discharge port.

In addition, the opening guide portion is formed to protrude laterally on the side portion, and it is preferable to form an inclined surface in which the distance with the side portion becomes narrower toward an upper portion.

In addition, the opening guide portion is formed by being bent in an outward direction of the side portion around an upper end connected to the side portion after a portion of the side portion is cut off, and the second discharge port is formed at a portion separated from the side portion from the side portion It is preferably formed.

In addition, the coupling portion protrudes from the edge of the duct portion in contact with the side portion or the side portion of the lower case, is formed to form a plane parallel to the side portion or the side portion of the lower case, and is in surface contact with the side portion or the lower case. It is desirable.

In addition, the present invention is provided on the outside of the side portion, it is preferable to further include a clip member for pressing the coupling portion toward the side portion in close contact with the side portion.

In addition, between the side portion and the clip member, a fitting groove is formed with an upper portion blocked and a lower portion open, and the clip member is coupled to the side portion such that an upper portion of the fitting groove is disposed above the second discharge port, and the fitting groove It is preferable that the upper end portion of the coupling portion fitted in the interfering portion interferes with the upper portion of the fitting groove to guide the vertical position of the flow path connecting member coupled to the side portion.

In addition, it is preferable that the present invention further includes a first heating unit provided inside the cooking chamber and generating a circulating flow of heat circulating inside the cooking chamber.

In addition, the first heating unit may include a fan cover installed on the rear surface to form a separate space inside the cooking chamber and provided with an intake port and an exhaust port; A rear heating unit installed in the space inside the fan cover to generate heat; And a fan in which the air from the cooking compartment is sucked into the fan cover through the intake port and the heated air is sucked into the fan cover to generate a circulation flow of hot air discharged to the cooking compartment through the exhaust port. desirable.

In addition, it is preferable that the heat discharged into the cooking compartment through the second discharge port merges with the circulation flow of the heat generated by the first heating unit to circulate the inside of the cooking compartment.

According to the cooking apparatus of the present invention, it is possible to effectively shorten the time required for cooking while reducing unnecessary consumption of energy, as well as a uniform heating function and food that can cook the whole food evenly by heating the entire cooking compartment evenly. There is an effect that can provide intensive heating function for the bottom of the floor.

In addition, the present invention makes it possible to easily manufacture parts necessary for manufacturing a cooking appliance such as a flow path connection member at a low cost, while taking a component installation structure that allows them to be easily assembled, thereby manufacturing a cooking appliance. You can reduce the cost and time required for the product.

In addition, the present invention has an advantage in that it is easy to store and handle parts required for manufacturing a cooking appliance by providing a flow path connecting member provided to stack a plurality of pieces.

1 is a perspective view schematically showing a cooking appliance according to an embodiment of the present invention.
FIG. 2 is a perspective view showing an oven part of the cooking appliance shown in FIG. 1 by separating.
3 is an exploded perspective view showing each configuration of an oven unit of the cooking appliance shown in FIG. 1 in an exploded manner.
4 is a cross-sectional view taken along the line "IV-IV" of FIG. 1.
5 is a cross-sectional view taken along line “V-V” of FIG. 1.
6 is a perspective view illustrating a state in which a side panel portion is separated from the cooking appliance shown in FIG. 1.
7 is a perspective view illustrating a state in which the flow path connecting member is separated from the cooking appliance shown in FIG. 6.
FIG. 8 is a perspective view illustrating a state in which the lower heating unit is partially withdrawn from the cooking appliance shown in FIG. 7.
9 is a perspective view illustrating a separate flow path connecting member of a cooking appliance according to an embodiment of the present invention.
10 is a cross-sectional perspective view showing an enlarged portion "X" of FIG. 5.
11 is a flowchart illustrating an example of a combustion control process of a cooking appliance according to an embodiment of the present invention.
12 is a view showing an example of a hot air flow formed inside the cooking apparatus according to an embodiment of the present invention.

Hereinafter, an embodiment of the cooking appliance according to the present invention will be described with reference to the accompanying drawings. For convenience of description, thicknesses of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

[Overall structure of cooking equipment]

1 is a perspective view illustrating a cooking appliance according to an embodiment of the present invention, and FIG. 2 is a perspective view illustrating an oven part of the cooking appliance illustrated in FIG. 1 by separating.

Referring to FIGS. 1 and 2, the cooking appliance according to an exemplary embodiment of the present invention has an external appearance formed by a main body 10. The main body 10 may be provided 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 installed in the inner space.

At the upper end of the main body 10, an open space, that is, a cooktop unit 20 provided to cook food by heating a food or a container containing food placed on the upper side is positioned.

At least one cooktop heating unit 21 for heating food to be cooked or a container containing food is positioned in the cooktop unit 20.

In addition, an oven unit 30 is installed below the cooktop unit 20. In the inner space of the oven unit 30, a cooking chamber 31 providing a space in which food is cooked is positioned.

The cooking chamber 31 is formed in the shape of a hexahedron with an open front surface, and while the cooking chamber 31 is shielded, the interior space of the cooking chamber 31 is heated to cook food. That is, in the oven unit 30, the inner space of the cooking chamber 31 is a space in which food is substantially cooked.

The oven unit 30 is provided with a door 32 that selectively opens and closes the cooking chamber 31 so as to be rotatable. The door 32 may open and close the cooking chamber 31 in a pull-down manner in which the upper end rotates up and down around the lower end.

The door 32 has a shape of a hexahedron having a predetermined thickness as a whole, and a handle 32a is installed on the front surface thereof to grip the door 32 when the user wants to rotate the door 32. The user can easily rotate the door 32 by the handle 32a.

A control panel 51 is provided on the front of the cooktop 20, that is, on the upper side of the door 32. The control panel 51 may be formed in the shape of a hexahedron having a predetermined internal space, and on the front side of the control panel 51, an input unit through which a user inputs an operation signal 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 the user can directly input the operation signal.

In addition, the control panel 51 may further include a display unit providing operation information of a cooking appliance or cooking information of food, and a user can check various information on the shelf support device and the cooking appliance having the same through the display unit. There will be.

In the internal space of the main body 10, that is, a space between the cooktop unit 20 and the oven unit 30, an electric equipment chamber 50 is formed to provide a space in which electric parts are located. The control panel 51 is positioned on the front of the electric room 50, and the control panel 51 has a structure in which the control panel 51 substantially shields the front of the electric machine 50.

[Structure of oven part]

3 is an exploded perspective view showing each configuration of the oven unit of the cooking appliance shown in FIG. 1 by exploding, FIG. 4 is a cross-sectional view taken along line "-" of FIG. 1, and FIG. 5 is It is a cross-sectional view along.

3 to 5, the oven unit 30 of the cooking appliance according to an embodiment of the present invention includes a main body 10 forming a skeleton of the oven unit 30, and a front side of the main body 10. A door 32 that is installed to open and close the cooking chamber 31, a first heating unit 310 installed inside the cooking chamber 31, and a second heating unit 320 installed below the outside of the cooking chamber 31 Includes.

According to the present embodiment, the main body 10 is provided in a shape including a substantially rectangular parallelepiped shape, and may include a rear surface 11, a lower surface 13, and a side surface 15.

The rear portion 11 is a wall surface located on the rear side of the cooking chamber 31 and defines a rear boundary surface of the cooking chamber 31 formed inside the main body 10. The rear portion 11 forms a rear surface of the cooking chamber 31 and forms a wall surface on which the fan cover 311 of the first heating unit 310 is provided to be positioned behind the cooking chamber 31.

The lower surface 13 is a wall surface located on the lower side of the cooking chamber 31 and defines a lower boundary surface of the cooking chamber 31 formed inside the main body 10. The lower surface portion 13 forms a lower surface of the cooking chamber 31 and forms an interface that partitions the lower space portion 33 and the cooking chamber 31 to be described later.

The side portion 15 is a wall surface located on the rear side of the cooking chamber 31 and defines a lateral boundary surface of the cooking chamber 31 formed inside the main body 10. This side portion 15 forms a side surface of the cooking chamber 31 and forms an interface that divides the side space portion 35 and the cooking chamber 31 to be described later.

Meanwhile, in addition to the cooking chamber 31, a lower space 33 and a side space 35 may be formed inside the main body 10.

The lower space part 33 is formed inside the main body 10, is formed below the outer side of the cooking chamber 31, and is a space separated from the cooking chamber 31 between the bottom of the main body 10 and the cooking chamber 31 To form. The cooking chamber 31 and the lower space part 33 are partitioned by a lower surface part 13, and the lower space part 33 formed in this way includes a second heating unit 320 to be described later, and a flow path connection member (to be described later). A space for installing a partial area of 330 may be provided.

The side space portion 35 is formed inside the main body 10, is formed on an outer side of the cooking chamber 31, and a space separated from the cooking chamber 31 is formed on a side of the cooking chamber 31. The cooking chamber 31 and the side space part 35 are divided by the side space part 15, and the side space part 35 formed in this way is a partial region of the flow path connecting member 330, which will be described later, and other oven parts 30. ) It can provide a space for installing related parts. These side spaces 35 are respectively formed on both sides of the main body 10 with the cooking chamber 31 as the center.

In addition, the main body 10 may further include a bottom portion 17 and side panel portions 18 and 19.

The bottom portion 17 is installed under the main body 10 to form a bottom surface of the main body 10 and defines a lower boundary surface of the lower space portion 33 formed inside the main body 10.

In addition, the side panel portions 18 and 19 are respectively installed on both side sides of the main body 10 to form an outer side surface of the main body 10, and the side spaces 35 formed inside the main body 10 Define the outer interface.

According to this embodiment, side spaces 35 are formed on both sides of the cooking chamber 31 in the lateral direction, and each side space 35 is surrounded by a "c" shape by the main body 10 when viewed from the top. In other words, three surfaces are surrounded by the main body 10 and the remaining one surface is opened in an outward direction to form a space.

The side panel portions 18 and 19 are respectively installed on each side of the main body 10 opened as described above to cover the open side of the side space portion 35 from the outside to form the side appearance of the main body 10 do.

The side panel portions 18 and 19 may include an outer panel 18 and a gasket case 19.

The outer panel 18 is formed in a panel shape having a shape corresponding to the open side shape of the side space portion 35, and is installed on each side of the main body 10, respectively. These outer panels 18 cover the open side of the side space 35 from the outside to form a side appearance of the main body 10, and are installed in a form that is detachably coupled to each side of the main body 10 Can be.

The gasket case 19 is disposed between the side surface 15 and the outer panel 18. In the gasket case 19 arranged in this way, the heat generated from the first heating unit 310 installed in the cooking chamber 31 and the second heating unit 320 installed in the lower space 33 is external to the outer panel. (18) Provides a thermal insulation function that blocks transmission to the side. The gasket case 19 may be installed in a form fixed to the outer panel 18 or may be installed in a form that is detachably coupled to the outer panel 18.

The side panel portions 18 and 19 provided in the above configuration cover the open side of the side space portion 35 from the outside when coupled to the side portion of the body 10 and cover the side appearance of the main body 10 from the outside. And, if necessary, it is separated from the main body 10 to open the inside of the side space part 35 to the outside of the main body 10.

The first heating unit 310 is provided inside the cooking chamber 31 to generate heat in the cooking chamber 31. In this embodiment, the first heating unit 310 is illustrated as being provided in a pro bake burner type. The first heating unit 310 generates heat inside the cooking chamber 31, but generates a circulating flow of heat circulating inside the cooking chamber 31, so that the heat is evenly transmitted within the cooking chamber 31. Can provide. A detailed description of the configuration of the first heating unit 310 will be described later.

The second heating unit 320 is provided at an outer lower portion of the cooking chamber 31, more specifically, in the lower space portion 33 to generate heat from the lower portion of the cooking chamber 31. In this embodiment, the second heating unit 320 is illustrated as being provided in a bottom bake type. The second heating unit 320 generates heat in the lower portion of the cooking chamber 31 and allows the heat to be transmitted from the lower side of the food in the cooking chamber 31, thereby implementing a function of intensively heating the bottom surface of the food. I can. A detailed description of the configuration of the second heating unit 320 will be described later.

[Configuration of the first heating unit]

The first heating unit 310 is provided inside the cooking chamber 31, and may include a fan cover 311, a first heating unit 313, a burner cover 315, and a convection pan 317. have.

The fan cover 311 is installed at the rear of the main body 10, more specifically, on the rear surface 11 forming the rear of the cooking chamber 31. As an example, the fan cover 311 may be formed in the shape of a hexahedron with an open rear surface. The fan cover 311 is coupled to the rear surface 11 so that the open rear surface is covered by the rear surface 11 to form a separate accommodation space inside the cooking chamber 31.

The fan cover 311 is provided with an intake port 311a and an exhaust port 311b. The intake port 311a is formed to pass through the front side of the fan cover 311 facing the front side of the cooking chamber 31, and the exhaust port 311b is a side surface of the cooking chamber 31, that is, the fan cover 311 facing the side portion 15. ) Is formed to penetrate through the side.

The first heating unit 313 is provided in an accommodation space inside the fan cover 311 to generate heat. In this embodiment, it is exemplified that the first heating unit 313 is provided in the form of a pro bake burner installed on the rear surface of the cooking compartment 31.

Accordingly, the first heating unit 313 may be provided in a form in which a plurality of flame holes are formed on the side of the burner body provided in an extended form such that the hollow pipe forms a “U”-shaped curve.

A flow path through which the mixed gas is supplied is formed inside the burner body, and the salt hole forms a path through which the gas supplied into the burner body is discharged to the outside of the burner body.

A plurality of flame holes may be disposed on the side of the burner body to be spaced apart at predetermined intervals along the extending direction of the burner body, whereby a plurality of gas discharge passages may be provided in the burner body along the extending direction of the burner body.

According to the present embodiment, the burner body receives a gas mixed with air, that is, a mixed gas through a mixing tube connected to the burner body, and the mixed gas supplied to the flow path inside the burner body is supplied to the outside of the burner body through a salt hole. By being discharged and burned, a flame is generated outside the first heating unit 313, that is, in the accommodation space inside the fan cover 311.

The burner cover 315 is provided to be located in an accommodation space inside the fan cover 311 and may be formed in a form in which a pair of cover plates provided in a form separated in the front-rear direction are combined. Inside the burner cover 315, while the first heating part 313 is accommodated, a space that can surround the flame generated by the first heating part 313 from the outside is formed.

The burner cover 315 provided as described above stabilizes the flame generated in the first heating unit 313 by limiting the area in which the flame generated in the first heating unit 313 is spread, while the flame is 311) and the cooking chamber 31 may be installed to block direct contact with the wall.

In addition, a reflecting plate 316 may be further provided in the cooking appliance of the present embodiment. The reflecting plate 316 is provided to be located in an accommodation space inside the pan cover 311, and is provided to be located between the burner cover 315 and the rear wall of the cooking chamber 31. The reflecting plate 316 provided as described above blocks a certain portion of the heat generated by the flame generated from the first heating unit 313 from being transmitted to the rear wall of the cooking chamber 31, thereby preventing the enamel formed on the surface of the cooking chamber 31, etc. It can be installed to protect the same coating layer from heat damage.

The convection fan 317 is provided to be located in an accommodation space inside the fan cover 311. The operation of the convection fan 317 may be performed in a form in which the convection fan 317 is rotated by driving the convection motor 318 connected to the convection fan 317 to generate an air current. In the convection fan 317 operated in this way, the air from the cooking chamber 31 is sucked into the receiving space inside the fan cover 311 through the intake port 311a and is sucked into the receiving space inside the fan cover 311 to be heated. An air circulation flow through which air is discharged to the cooking chamber 31 through the exhaust port 311b may be generated.

[Configuration of the second heating unit]

The second heating unit 320 is provided under the cooking chamber 31, and is a space separated from the cooking chamber 31 in which the first heating unit 310 is installed, that is, a lower space portion formed under the cooking chamber 31 ( 33). The second heating unit 320 may include a lower case 321, a second heating unit 323, and a guide plate 325.

The lower case 321 is installed in the lower space part 33, and an accommodation space for installing various parts constituting the second heating unit 320 is formed in the lower case 321. The lower case 321 may be provided in a shape including a rectangular parallelepiped shape with an open upper portion, and is formed of a material having a predetermined strength to protect a plurality of components installed in the receiving space therein.

The lower case 321 includes a German portion 321a forming a bottom surface of the lower case 321, and a sidewall portion extending upward from the German portion 321a to form a side surface of the lower case 321 ( 321b).

The second heating unit 323 is installed in the receiving space inside the lower case 321 and generates heat from the lower portion of the cooking chamber 31. In this embodiment, the second heating unit 323 is illustrated as being provided in the form of a bottom bake burner installed under the cooking chamber 31.

The second heating unit 323 may be provided in a form in which a plurality of flame holes are formed on the side of the burner body provided in a form in which a hollow pipe extends in a straight line along the front and rear directions. As another example, the second heating unit 323 may be provided in a form in which a plurality of flame holes are formed on the side of the burner body provided in an extended form such that a hollow pipe forms a “U”-shaped curve.

The main difference between the second heating unit 323 and the first heating unit 313 is the formation direction and flame formation position of the flame hole, and in other parts, the first heating unit 313 and the second heating unit 323 Since there is not a large difference in configuration between the two, a detailed description of the second heating unit 323 will be omitted.

The guide plate 325 is provided on the second heating unit 323. The guide plate 325 is disposed between the lower surface 13 and the second heating unit 323, and is provided to intercept between the second heating unit 323 and the lower surface 13. This guide plate 325 blocks direct contact with the lower surface 13, which is the bottom surface of the cooking chamber 31, from the flame generated by the second heating unit 323, and burns the second heating unit 323 It serves to indirectly transmit the heat generated by the lower surface portion 13.

In addition, the second heating unit 320 of the present embodiment may further include an air guide 327 provided under the second heating unit 323. The air guide 327 is disposed between the German part 321a and the second heating part 323, which is the bottom surface of the lower case 321, and blocks the gap between the German part 321a and the second heating part 323. It is provided so that it is. This air guide 327 forms a barrier wall that prevents the flame from spreading to the German part 321a so that the flame generated by the combustion of the second heating part 323 can be intensively operated toward the upper side. Plays a role.

Meanwhile, a plurality of through holes 322 are formed through the German portion 321a that is the bottom surface of the lower case 321. In addition, a plurality of through holes 328 are formed through the air guide 327 disposed on the German portion 321a.

The through hole 322 forms a vertical passage through which external air flows into the lower case 321 on the german portion 321a. In addition, the through hole 328 forms a vertical passage on the air guide 327 through which external air introduced through the through hole 322 flows toward the second heating unit 323. That is, a passage through which external air flows into the second heating unit 323 is formed inside the second heating unit 320. External air introduced into the second heating unit 323 through the passage formed as described above may be used as secondary air for stable combustion of the second heating unit 323.

Preferably, the through-hole 322 and the through-hole 328 may be formed so that their vertical positions are offset from each other. When the through-hole 322 and the through-hole 328 are arranged in this way, it is possible to secure a passage with a sufficient width for supplying secondary air, while effectively preventing the flame from spreading to the German part 321a. You will be able to keep the wall.

[Heat transfer structure]

6 is a perspective view showing a state in which the side panel portion is separated from the cooking appliance shown in FIG. 1, and FIG. 7 is a perspective view illustrating a state in which the flow path connecting member is separated from the cooking appliance shown in FIG. 6, and FIG. 7 is a perspective view illustrating a state in which the second heating unit is partially withdrawn from the cooking appliance shown in FIG. 7.

5 and 6, the first heating unit 310 provided inside the cooking chamber 31 generates heat inside the cooking chamber 31, but prevents the circulation flow of heat circulating inside the cooking chamber 31. By generating it, it provides a function of evenly transmitting heat into the cooking chamber 31. In addition, the second heating unit 320 provided in the lower outside of the cooking chamber 31 generates heat from the lower portion of the cooking chamber 31 so that the bottom surface of food such as pizza is cooked in a more crispy form. It can provide the function of intensively heating the noodles.

That is, the cooking appliance of this embodiment has a function of uniformly heating food in the cooking chamber 31 using the first heating unit 310 and intensively heating the bottom surface of the food using the second heating unit 320. It can provide a function of heating together.

In addition, the cooking appliance of the present embodiment further provides a function of increasing the temperature in the cooking chamber 31 more quickly and effectively by transferring the heat generated from the second heating unit 320 into the cooking chamber 31. I can. Hereinafter, a heat transfer structure for implementing this function will be described.

According to this embodiment, a first discharge port (a) is formed in the side wall portion 321b forming the side of the second heating unit 320, and the second discharge port ( b) is formed.

The first discharge port (a) is formed to pass through the side wall portion (321b) in the lateral direction, and the first discharge port (a) formed in this way forms a lateral passage connecting the inside and the outside of the lower case 321 do. A passage connecting the inside of the lower case 321 in which the second heating part 323 is installed and the side space part 35 is formed by the first discharge port (a) formed to penetrate through the side wall part 321b.

In addition, the second discharge port (b) is formed to pass through the side portion 15 in the lateral direction, and thus the second discharge port (b) forms a lateral passage through which the inside and the outside of the cooking chamber 31 are communicated. A passage connecting the inside of the cooking chamber 31 and the side space 35 is formed by the second discharge port b formed to penetrate through the side portion 15.

At this time, the first discharge port (a) and the second discharge port (b) form a passage connected to the side space portion 35, respectively, and by the first discharge port (a) and the second discharge port (b) formed in this way. , A passage connecting the inside of the lower case 321 and the side space portion 35, and a passage connecting the side space portion 35 and the inside of the cooking chamber 31 are formed.

In addition, the cooking appliance of this embodiment may further include a flow path connecting member 330.

The flow path connecting member 330 is installed outside the cooking chamber 31 and forms a lateral passage through which heat generated from the second heating unit 320 flows into the cooking chamber 31.

In this embodiment, the flow path connecting member 330 is exemplified as having a space formed therein and provided in the form of a duct with an open side portion toward the cooking chamber 31. The flow path connecting member 330 is installed outside the cooking chamber 31 to form an outer wall surrounding the periphery of the first discharge port (a) and the second discharge port (b). In this case, in the flow path connection member 330, a partial region corresponding to the lower portion of the flow path connection member 330 is disposed in the lower space portion 33, and the remaining region corresponding to the upper portion of the flow path connection member 330 is a side space portion. It is installed in a form arranged in (35).

And the inside of the flow path connecting member 330 installed as described above, the outer wall formed by the flow path connecting member 330, and a guide passage surrounded by the side portion 15 and the lower surface portion 13 to which the flow path connecting member 330 is coupled. (c) is formed.

As described above, the guide passage c formed in the inner space of the passage connecting member 330 forms a passage connecting the first discharge port a and the second discharge port b. Such a guide passage (c) forms a passage through the lower space part 33 and the side space part 35, but connects the flow path to be separated from the space formed in the lower space part 33 and the side space part 35 It is defined by member 330.

That is, the flow path connecting member 330 installed outside the cooking chamber 31 passes through the lower space portion 33 and the side space portion 35 and passes through the inside of the second heating unit 320 and the inside of the cooking chamber 31. To form a passage connecting the lower space part 33 and the side space part 35, a passage separated from these spaces within the space formed in the lower space part 33 and the side space part 35 do. Accordingly, the cooking appliance of the present embodiment can secure a passage for transferring heat generated by combustion of the second heating unit 323 inside the second heating unit 320 into the interior of the cooking chamber 31 in a convection form. There will be.

Note that in the heat transfer structure as described above, a passage for transferring heat generated by combustion of the second heating unit 323 into the interior of the cooking chamber 31 in a convective form (hereinafter referred to as “heat transfer passage”) Is formed on the side of the cooking chamber 31 rather than the lower portion of the cooking chamber 31.

If the heat transfer path is formed in the lower portion of the cooking compartment 31, the heat transfer path of the shortest distance may be formed in which the heat of the second heating unit 320 directly rises into the interior of the cooking compartment 31. However, in order for the heat transfer passage to be formed in the lower portion of the cooking chamber 31, a hole for passing the heat must be formed in the lower surface 13, which is the bottom surface of the cooking chamber 31.

In this way, in a structure in which a hole is formed in the lower surface 13, that is, the bottom surface of the cooking chamber 31, the bottom surface of the cooking chamber 31 cannot maintain a smooth plane, and thus, the hole portion of the bottom of the cooking chamber 31 It is difficult to clean the bottom surface of the cooking compartment 31 due to contamination. In addition, in the above structure, foreign matters fall into the interior of the second heating unit 320 through the hole, so that the contamination of the second heating unit 320 is intensified, and thus the performance of the second heating unit 320 is degraded or contaminated. There is also a growing concern about safety accidents caused by ignition.

In comparison, in the cooking appliance of the present embodiment, the heat transfer path is not formed in the lower portion of the cooking chamber 31 but a heat transfer structure formed on the side of the cooking chamber 31 is formed.

That is, in this embodiment, the inside of the second heating unit 320 is opened laterally through the first discharge port (a), and the inside of the cooking chamber 31 is laterally opened through the second discharge port (b). In this way, a heat transfer path in a form in which the flow path connecting member 330 connects between the two discharge ports a and b opened in the lateral direction is formed.

According to this, the heat transfer passage is not formed in a shape that directly penetrates the bottom surface of the cooking chamber 31, but surrounds the lower and side surfaces of the cooking chamber 31 from the outside and bypasses the cooking chamber 31 in a "c" shape. The inside of the cooking chamber 31 is connected to the inside of the cooking chamber 31 through a second discharge port b formed on the side of the cooking chamber 31.

In the heat transmission structure of the present embodiment formed as described above, a hole is not formed in the bottom surface of the cooking chamber 31 and the bottom surface of the cooking chamber 31 can maintain a smooth plane.

The cooking appliance of this embodiment including such a heat transfer structure allows the bottom surface of the cooking chamber 31 to be implemented in a flat shape having a smooth and flat surface, so that it is easy to remove contaminants from the bottom surface of the cooking chamber 31. It is possible to provide improved cleanability by making it disappear, and it is possible to appeal design elements to consumers by improving the aesthetics of the interior of the cooking compartment 31.

In addition, since the cooking appliance of the present embodiment including the above structure can prevent the contaminants in the cooking chamber 31 from falling into the interior of the second heating unit 320, the performance of the second heating unit 320 due to contamination This can reduce the risk of deterioration or safety accidents.

Meanwhile, the flow path connecting member 330 may be provided in a form that is fixedly coupled to the main body 10 or may be provided in a form that is detachably coupled to the main body 10.

As shown in FIG. 7, when the flow path connection member 330 is provided in a form that is detachably coupled to the body 10, when the flow path connection member 330 is separated from the body 10, the flow path connection member 330 The second heating unit 320 covered by) can be exposed toward the side space portion 35.

In this way, the second heating unit 320 is exposed toward the side space portion 35 in a lateral direction in which the second heating unit 320 installed in the lower portion of the cooking chamber 31 can be separated from the main body 10. It means that the passage of is secured.

That is, if the flow path connecting member 330 is provided in a form that is detachably coupled to the main body 10, as shown in FIG. 8, the second heating unit after separating the flow path connecting member 330 from the main body 10 It is possible to design the installation structure of the second heating unit 320 that can separate the 320 from the main body 10 or separate the flow path connecting member 330 and the second heating unit 320 from the main body together. do.

[Installation structure of channel connection member]

9 is a perspective view illustrating a separate flow path connecting member of the cooking appliance according to an embodiment of the present invention, and FIG. 10 is a cross-sectional perspective view showing an enlarged portion "" of FIG. 5.

9 and 10, the flow path connection member 330 may include duct portions 331 and 333 and a coupling portion 335.

The duct portions 331 and 333 are provided outside the cooking chamber 31 to form an outer wall surrounding the guide passage c from the outside. The guide passage (c) forms a passage connecting the first discharge port (a) and the second discharge port (b) in a space surrounded by the duct portions 331 and 333.

The duct portions 331 and 333 may include a first duct portion 331 forming an outer wall surrounding the periphery of the first discharge port a, and a second duct forming an outer wall surrounding the periphery of the second discharge port b It may be formed including the unit 333.

According to the present embodiment, the lower case 321 is disposed such that the sidewall portion 321b is positioned laterally inside the sidewall portion 15. In addition, the first duct part 331 is inserted into a space formed between the lower case 321 and the lower surface 13 in the lower space part 33, and the second duct part 333 is a side space part ( 35) is placed inside.

The duct portions 331 and 333 including the first duct portion 331 and the second duct portion 333 are connected so that the first duct portion 331 and the second duct portion 333 form a "b" shape. Is formed. At this time, the first duct part 331 is installed in close contact with the side wall part 321b inside the lower space part 33, and the second duct part 333 is the side part 15 inside the side space part 35 It is installed in close contact with.

The coupling portion 335 is provided to closely couple the duct portions 331 and 333 to any one of the side wall portion 321b and the side portion 15 of the lower case 321. The coupling portion 335 is formed to protrude from the edge of the sidewall portion 321b that is in contact with the sidewall portion 321b corresponding to the side of the cooking chamber 31 or the sidewall portion 321b corresponding to the side of the cooking chamber 31 do. In this embodiment, each of the coupling portions 335 is illustrated as being formed by bending each rim portion of the duct portions 331 and 333 in the outward direction of the duct portions 331 and 333. Each of these coupling portions 335 is connected to each of the rim portions of the duct portions 331 and 333 to form a "b" shape.

The coupling portion 335 as described above is formed to form a plane parallel to the side portion 15 or the side wall portion 321b. Specifically, the coupling portion 335 formed to protrude from the edge of the first duct portion 331 is formed to form a plane parallel to the sidewall portion 321b, and is in surface contact with the sidewall portion 321b and is coupled. In addition, the coupling portion 335 protruding from the edge of the second duct portion 333 is formed to form a plane parallel to the side portion 15 and is in surface contact with the side portion 15 and is coupled.

That is, each coupling portion 335 formed on each rim portion of the duct portions 331 and 333 is in surface contact and coupled with the side wall portion 321b or the side portion 15, whereby the duct portions 331 and 333 are combined with the lower case 321 ) Or the side surface of the cooking chamber 31 and may be firmly coupled.

At this time, the coupling between the coupling portion 335 and the side wall portion 321b, and the coupling between the coupling portion 335 and the side portion 15 may be performed using a fastening member such as a bolt that penetrates and couples the two members that are in contact with each other. Can be done. In this way, the duct portions 331 and 333 coupled with the side surfaces of the lower case 321 or the cooking chamber 31 may be firmly coupled to a designated position so that the position of the guide passage c formed therein is stably maintained, and is necessary. Depending on the case, it may be easily separated from the side of the lower case 321 or the cooking chamber 31.

In this embodiment, it is exemplified that the flow path connecting member 330 is provided in the form of a duct in which a space is formed therein and one side toward the cooking chamber 31 is opened. That is, the flow path connecting member 330 of the present embodiment has a first duct portion 331 provided in the form of a duct in which an upper portion toward the lower surface portion 13 is opened, and a duct shape in which one side portion toward the side portion 15 is opened. The second duct part 333 provided with is formed in a "b" shape and is connected to each other.

According to this flow path connecting member 330, the open upper side of the first duct part 331 is in close contact with the lower surface 13, and the open side of the second duct part 33 is the side part 15 Is tightly coupled to.

Accordingly, a guide passage (c) surrounded by the first duct part 331 and the lower surface part 13 coupled to each other is formed inside the first duct part 331, and inside the second duct part 333 A guide passage (c) surrounded by the second duct portion 333 and the side portion 15 coupled to each other is formed, and as a result, a guide passage (c) extending in a "b" shape inside the passage connecting member 330 Is formed.

As another example, the flow path connecting member 330 may be provided in the form of a duct with no open portions except for one end facing the first discharge port a and the other end facing the second discharge port b.

However, as illustrated in this embodiment, when the flow path connection member 330 is provided in the form of a duct in which a space is formed inside and one side toward the cooking chamber 31 is opened, the manufacture of the flow path connection member 330 The material cost required for this can be reduced, and the flow path connection member 330 can be manufactured more easily. In addition, since the plurality of flow path connection members 330 can be stacked and stored through the open portion of the flow path connection member 330, the advantage of easy storage and handling of the flow path connection member 330 required for manufacturing a cooking appliance is also obtained. You will be able to.

Meanwhile, the cooking appliance according to the present embodiment may further include a clip member 340.

The clip member 340 is provided on the outside of the side portion 15, and a portion of the coupling portion 335 formed on the edge portion of the flow path connecting member 330 is pressed toward the side portion 15 so as to be in close contact with the side portion 15. .

The clip member 340 is provided outside the side portion 15 and is disposed above the second discharge port b. In this embodiment, the clip member 340 is illustrated as being provided in the form of a plate spring having an elastic force capable of being in close contact with the side portion 15 of the lower portion thereof.

The upper portion of the clip member 340 is fixedly coupled to the side portion 15. Further, the lower portion of the clip member 340 extending downward from the upper portion of the clip member 340 fixedly coupled to the side portion 15 as described above is not coupled to the side portion 15. Accordingly, a fitting groove 341 is formed between the side portion 15 and the clip member 340, the upper part is closed and the lower part is open.

In the fitting groove 341 formed as described above, a portion of the coupling portion 335, more specifically, at least a portion of the coupling portion 335 formed at an upper edge portion of the second duct portion 333 is inserted. The insertion of the coupling portion 335 may be made until the upper end of the coupling portion 335 interferes with the blocked upper portion of the fitting groove 341, and fitting between the clip member 340 and the coupling portion 335 made in this way By coupling, the vertical position of the flow path connecting member 330 may be guided.

That is, when the flow path connection member 330 is installed, the upper end of the flow path connection member 330 is inserted into the clip member 340 to guide the vertical position at which the installation of the flow path connection member 330 is to be made. Since the connection member 330 is also temporarily fixed at the upper end, the operation of coupling the flow path connection member 330 to the lower case 321 or the lower surface 13 or the side surface 15 using a fastening member is further performed. It can be done easily.

[Structure of opening guide]

Meanwhile, the cooking appliance according to the present embodiment may further include a heat guide unit 350. The heat guide part 350 is provided to serve to convert a flow direction of the heat flowing upward through the guide passage (c) to a direction passing through the second discharge port (b).

The opening guide portion 350 is formed to protrude from the side portion 15 so as to be disposed in the guide passage c formed in the passage connecting member 330. The heat guide portion 350 formed as described above has a barrier wall that blocks the flow of heat flowing along the guide passage (c) on the upper portion of the second discharge port (b).

Preferably, the opening guide portion 350 is provided in a form of forming an inclined surface in which the gap with the side portion 15 becomes narrower toward the top. The flow of heat flowing upward along the guide passage (c) can be naturally guided toward the second discharge port (b) along the inclined barrier wall formed by the heat guide portion 350, and accordingly, the cooking chamber 31 ) It is possible to more smoothly discharge the heat through the side.

In the present embodiment, the formation of the second discharge port (b) and the opening guide portion 350 is exemplified by the fact that a portion of the side portion 15 is cut off. According to this, the opening guide portion 350 is formed by being bent outwardly of the side portion 15 around the upper end connected to the side portion 15 after a portion of the side portion 15 is cut, and the second discharge port (b) is In the side portion 15, the opening guide portion 350 is formed in a separated portion.

That is, according to the cooking apparatus of the present embodiment, a passage for supplying heat to the side of the cooking chamber 31 and the flow of heat toward the passage is only a simple operation of bending a portion of the side portion 15 without adding an additional structure. Since the structure for inducing the can be formed at once, it is possible to additionally provide an advantage of suppressing an increase in cost and time required for manufacturing a cooking appliance.

[Combustion control of the first heating unit and the second heating unit]

11 is a flowchart showing an example of a combustion control process of a cooking appliance according to an embodiment of the present invention, and FIG. 12 is a view showing an example of a hot air flow formed inside the cooking appliance according to an embodiment of the present invention. .

Hereinafter, a combustion control method of a cooking appliance according to an embodiment will be described with reference to FIGS. 11 and 12.

As described above, the oven unit 30 of the cooking appliance according to the present embodiment has two heating units therein, and one of the first heating units 310 is the cooking chamber 31 inside the cooking chamber 31. The second heating unit 320, which is the other, is operated to generate a circulating flow of heat circulating inside, and the second heating unit 320 is operated to generate heat from the lower portion of the cooking chamber 31.

The cooking appliance of the present embodiment including the two heating units as described above may be operated in the following manner.

First, a simultaneous operation step (S1) of simultaneously operating the first heating unit 310 and the second heating unit 320 is performed in an initial state in which no heating of the inside of the cooking chamber 31 is performed.

In this simultaneous operation step (S1), combustion of the first heating unit 313 and combustion of the second heating unit 323 are performed together. Accordingly, inside the cooking chamber 31, a circulating flow of heat is generated in which the heat circulates inside the cooking chamber 31 by the operation of the first heating unit 310, and at the same time, a circulation flow of heat generated by the second heating unit 320 is generated. The flow of heat discharged from the side of the cooking chamber 31 through the guide passage c formed in the passage connecting member 330 is generated together.

At this time, the heat discharged through the side of the cooking chamber 31, that is, through the second discharge port b, is a flow of heat generated by the operation of the first heating unit 310, that is, the heat circulating inside the cooking chamber 31. It merges with the circulating flow. Accordingly, in the interior of the cooking chamber 31, the heat generated by the combustion operation of the first heating unit 310 and the heat generated by the combustion operation of the second heating unit 320 are combined together to make the interior of the cooking chamber 31 Since it is circulated, the temperature in the cooking chamber 31 can be increased more quickly.

That is, by controlling the operation of operating the first heating unit 310 and the second heating unit 320 at the same time, the cooking appliance of the present embodiment can quickly increase the temperature in the cooking compartment 31, through which the cooking compartment 31 ), it is possible to effectively shorten the time required for cooking by allowing the initial preheating to occur more quickly.

On the other hand, as described above, the second discharge port (b) for forming a passage through the cooking chamber 31 for discharging the heat generated by the combustion operation of the second heating unit 320 is formed on the side portion 15. , Formed on the lower side adjacent to the bottom surface of the cooking chamber 31. Accordingly, the heat generated by the second heating unit 320 is discharged into the cooking chamber 31 through the side of the cooking chamber 31, and is discharged into the cooking chamber 31 from a lower portion adjacent to the bottom side of the cooking chamber 31. do.

The heat discharged in this way merges with the circulation flow of the hot air circulating inside the cooking chamber 31 and circulates the entire inside of the cooking chamber 31, but before joining the circulation flow of the hot air, that is, the second discharge port (b) Immediately after being discharged into the cooking chamber 31 through the cooking chamber 31, a flow flow flowing along the bottom surface of the cooking chamber 31 is first seen.

Therefore, on foods located in the cooking chamber 31, a circulation flow of heat circulating the entire interior of the cooking chamber 31 and a flow of heat flowing along the bottom surface of the cooking chamber 31 act together.

For this reason, in addition to the action of heat circulating the entire interior of the cooking chamber 31, the action of heat flowing along the bottom surface of the cooking chamber 31 is added to the bottom surface of the food. Moreover, on the bottom surface of the food, convection through the bottom surface of the cooking chamber 31, that is, the bottom surface 13 heated by the combustion of the second heating unit 323, as well as the heat discharged through the second discharge port (b). Heat transferred in the form can also be transferred additionally.

Accordingly, intensive heating in which heat of a relatively high amount of heat is applied to the bottom surface of the food compared to other parts of the food can be performed.

That is, the cooking appliance of this embodiment quickly heats up the entire cooking chamber 31 while controlling the operation of operating the first heating unit 310 and the second heating unit 320 at the same time. Not only can it be raised, but it is also possible to provide a intensive heating function for the bottom surface of the food.

On the other hand, after the simultaneous operation step (S1) as described above has progressed to the set point, the partial operation step (S2) in which only one of the first heating unit 310 and the second heating unit 320 is operated is performed.

As an example, the partial operation step S2 may be performed in a form in which only the first heating unit 310 is operated. Accordingly, in the cooking chamber 31, heating is performed in which only the circulation flow of hot air circulating inside the cooking chamber 31 is generated by the operation of the first heating unit 310, and the second heating unit 320 Heating in the form in which the heat generated in is discharged through the side of the cooking chamber 31 is stopped.

The partial operation step S2 made in this form may be selected when it is important to evenly cook the whole food, and cooking for food that requires relatively low intensive heating on the bottom of the food is in progress.

That is, in the cooking appliance according to the present embodiment, after the simultaneous operation step (S1) is performed first to rapidly increase the temperature in the cooking chamber 31 to a temperature suitable for cooking food, only the first heating unit 310 is operated. By performing food cooking in the form of performing the partial operation step S2 so as to be achieved, cooking can be performed to uniformly heat the entire food while effectively shortening the time required for cooking.

As another example, the partial operation step S2 may be performed in a form in which only the second heating unit 320 is operated. Accordingly, inside the cooking chamber 31, only the heat generated by the second heating unit 320 is discharged through the side of the cooking chamber 31, and heating is performed by the operation of the first heating unit 310. Is discontinued.

The partial operation step S2 made in this form may be selected when cooking is performed on foods that require intensive heating on the bottom of the food, such as pizza.

That is, the cooking appliance according to the present embodiment first proceeds with the simultaneous operation step (S1) to rapidly increase the temperature in the cooking chamber 31 to a temperature suitable for cooking food, and then the temperature in the cooking chamber 31 required for cooking food. By performing food cooking in a form in which a partial operation step (S2) is performed so that only the second heating unit 320 is operated in a state that maintains a certain degree, the bottom surface of food such as pizza is made more crispy. The function of intensively heating the bottom surface of the food to be cooked can be provided more effectively.

In addition, while the operation of the first heating unit 310 and the second heating unit 320 is performed at the same time, the airflow formed by the operation of the convection fan 317 affects the combustion of the second heating unit 323 and is thus reduced. There may be a problem that the combustion of the second heating unit 323 is unstable, such as the flame formed in the second heating unit 323 is shaken or complete combustion in the second heating unit 323 is not properly performed.

In order to solve this problem, the cooking appliance of this embodiment converts the combustion operation to a partial operation step (S2) at a point in time when the combustion instability problem of the second heating unit 323 may appear during the simultaneous operation step (S1). Conversion, thereby stopping the operation of the first heating unit 310 and allowing only the operation of the second heating unit 320 to proceed.

Accordingly, the cooking appliance of this embodiment prevents the airflow formed by the operation of the convection fan 317 from affecting the combustion of the second heating unit 323, thereby stabilizing the combustion of the second heating unit 323 By doing so, it is possible to prevent in advance from deteriorating the heating performance of the cooking appliance.

As another example, the partial operation step S2 may be performed in a form in which the operation of the first heating unit 310 and the operation of the second heating unit 320 are alternately performed.

In the partial operation step S2 made in this form, a process in which one of the first heating unit 310 and the second heating unit 320 is performed first and then the other operation is performed is repeated.

The cooking appliance of the present embodiment, which performs the partial operation step S2 in this manner, minimizes the influence of the operation of the first heating unit 310 on the combustion of the second heating unit 320, while It is possible to effectively provide a uniform heating function and an intensive heating function for a portion of the food at the same time.

As another example, the cooking appliance of this embodiment controls the operation of the first heating unit 310 and the second heating unit 320 in a form in which the simultaneous operation step (S1) and the partial operation step (S2) are alternately performed. You can also do it.

According to this, the cooking chamber 31 in a form in which the simultaneous operation step (S1) proceeds until the set point, the partial operation step (S2) proceeds, and the alternating of the simultaneous operation step (S1) and the partial operation step (S2) is repeated. The interior is heated.

In the operation control for the first heating unit 310 and the second heating unit 320 made as described above, the temperature of the inside of the cooking chamber 31 is at the time of switching from the simultaneous operation step (S1) to the partial operation step (S2). It can be implemented in a form dependent on.

For example, when the temperature inside the cooking chamber 31 reaches a set temperature while the simultaneous operation step (S1) is in progress, the first heating unit 310 and the second heating unit ( Operation control for 320) may be performed.

When the combustion operation of the cooking appliance is controlled in this manner, the temperature of the cooking chamber 31 is rapidly increased to the set temperature through the simultaneous operation step (S1), and then the cooking chamber 31 through the partial operation step (S2). ), it is possible to reduce unnecessary consumption of energy by controlling the temperature of), so it is possible to provide an effect of effectively shortening the time required for cooking while reducing unnecessary consumption of energy.

In addition, in this process, if the operation of the first heating unit 310 is stopped and only the operation of the second heating unit 320 is performed and the partial operation step (S2) is performed, the combustion of the second heating unit 323 is performed. It is also possible to obtain the effect of stabilizing.

According to the combustion control method of the cooking appliance according to the present embodiment as described above, it is possible to effectively shorten the time required for cooking while reducing unnecessary consumption of energy, as well as evenly heating the entire cooking compartment 31 to heat the entire food. There is an effect of providing a uniform heating function for uniform cooking and an intensive heating function for the bottom of food.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand. Therefore, the true technical protection scope of the present invention should be determined by the following claims.

10: main body
11: back side
13: lower surface
15: side part
17: bottom
18: outer panel
19: gasket case
20: cooktop
21: cooktop heating part
30: oven part
31: cooking room
32: door
32a: handle
33: lower space part
35: side space part
50: battlefield
51: control panel
52: input
310: first heating unit
311: fan cover
311a: intake port
311b: exhaust port
313: first heating unit
315: burner cover
316: reflecting plate
317: Convection fan
318: Convection motor
320: second heating unit
321: lower case
321a: bottom part
321b: side wall
322: through hole
323: second heating unit
325: guide plate
327: Air guide
328: through hole
330: flow path connecting member
331: first duct part
333: second duct part
335: coupling part
340: clip member
350: opening guide
a: 1st discharge port
b: 2nd discharge port
c: Guide Euro

Claims (14)

A main body having a cooking chamber formed therein, a rear surface defining a rear boundary surface of the cooking chamber, a lower surface defining a lower boundary surface of the cooking chamber, and a side surface defining a lateral boundary surface of the cooking chamber;
A lower case provided below the lower surface and having an accommodation space formed therein;
A lower heating unit installed in the receiving space to generate heat;
A first discharge port defining a passage for opening the inside of the lower case in which the receiving space is formed to the outside;
A second discharge port defining a lateral passage for opening the inside of the cooking chamber to the outside; And
And a flow path connecting member forming a guide flow path through which the heat discharged through the first discharge port flows toward the second discharge port, and
The flow path connecting member includes a duct portion installed outside the cooking chamber to form an outer wall surrounding the guide flow path from the outside, and a coupling portion coupling the duct portion to at least one of the lower case and the side portion,
The guide passage forms a passage connecting the first discharge port and the second discharge port in a space surrounded by the duct part,
The coupling portion protrudes from the edge of the duct portion in contact with the side portion or the side portion of the lower case, and is formed to form a plane parallel to the side portion or the side portion of the lower case, and is in surface contact with the side portion or the lower case. device.
delete The method of claim 1, wherein the duct portion,
A first duct part forming an outer wall surrounding a periphery of the first discharge port; And
And a second duct part forming an outer wall surrounding the periphery of the second discharge port.
The method of claim 3,
The main body is provided at a lower portion of the main body, and a lower space portion forming a space separated from the cooking chamber under the cooking chamber, and a lower space portion provided on a side of the main body and forming a space separated from the cooking chamber on a side of the cooking chamber It further comprises a side space to be,
The lower case is installed inside the lower space,
The first duct part is inserted into a space formed between the lower case and the lower surface in the lower space part and installed in close contact with the lower case,
The second duct portion is a cooking appliance installed in close contact with the side portion within the side space portion.
The method of claim 3,
The second discharge port is formed to pass through the side portion,
The lower case includes a side wall portion defining a lateral boundary surface of the accommodation space and formed through the first discharge port,
The side wall portion is disposed so as to be located laterally inward than the side portion,
The duct portion is formed by connecting the first duct portion and the second duct portion to form a "b" shape,
The first duct portion is installed in close contact with the side wall portion,
The second duct portion is a cooking appliance installed in close contact with the side portion.
The method of claim 1,
Cooking appliance further comprising a hot air guide unit for converting a flow direction of the hot air flowing upward through the guide flow path to a direction passing through the second discharge port.
The method of claim 6,
The heat guide portion is formed to protrude laterally on the side portion, and the cooking appliance forms an inclined surface in which a gap with the side portion becomes narrower toward an upper portion.
The method of claim 6,
The opening guide portion is formed by being bent in an outward direction of the side portion around an upper end connected to the side portion after a portion of the side portion is cut,
The second discharge port is a cooking appliance that is formed in a portion where the heat guide portion is separated from the side portion.
delete The method of claim 1,
A cooking appliance further comprising a clip member provided outside the side portion and pressing the coupling portion toward the side portion to be in close contact with the side portion.
The method of claim 10,
Between the side portion and the clip member, a fitting groove is formed in which the upper part is blocked and the lower part is open,
The clip member is coupled to the side portion such that an upper portion of the fitting groove is disposed above the second discharge port,
A cooking appliance in which an upper end of the coupling portion fitted in the fitting groove interferes with an upper portion of the fitting groove to guide the vertical position of the flow path connecting member coupled to the side portion.
The method according to any one of claims 1, 3 to 8, and 10 to 11,
A cooking appliance further comprising a first heating unit provided inside the cooking chamber and generating a circulating flow of heat circulating inside the cooking chamber.
The method of claim 12, wherein the first heating unit,
A fan cover installed on the rear surface to form a divided space inside the cooking chamber, and provided with an intake port and an exhaust port;
A rear heating unit installed in the space inside the fan cover to generate heat; And
A fan for generating a circulating flow of hot air from the cooking chamber through the intake port to the inside of the fan cover and the heated air to be discharged to the cooking chamber through the exhaust port. .
The method of claim 13,
A cooking appliance for circulating the inside of the cooking compartment by joining the circulation flow of the hot air generated by the first heating unit to the heat discharged into the cooking compartment through the second discharge port.

Images