KR102514291B1 - Cooking Device - Google Patents

Abstract

The present invention relates to a cooling structure of a cooking appliance in which a first cooking appliance and a second cooking appliance are vertically stacked. The first cooking appliance uses a heating method that generates more heat than the second cooking appliance. A predetermined space is provided between the lower first cooking device and the upper second cooking device. A first component requiring cooling is installed in the space. The first part is disposed in an air flow path for cooling the first cooking appliance. An air supply hole serving as a passage through which air flow for cooling the second cooking device is supplied to the first component is provided on the bottom surface of the second cooking device facing the first component. Air discharged from the second fan, which generates air flow inside the second cooking appliance, flows in the upper part of the air supply hole, and air sucked in by the first fan, which generates air flow in the first cooking appliance, flows in the lower part of the air supply hole. is floating

Description

Cooking device {Cooking Device}

The present invention relates to a structure of a two-layer stacked cooking appliance.

A cooking appliance having a cooking chamber space, such as a microwave oven or an oven, has a rectangular parallelepiped shape as a whole, has an internal cooking chamber that is open to the front, and has a door in front of the cooking chamber.

Although there are various types of opening of the oven door, a method in which a hinged door is opened and closed by pivoting about a rotation axis is widely used. The door of the rotational opening method is divided into a swing door in which a hinge forms a vertical axis and a pull-down door in which a hinge forms a horizontal axis.

Recently, in order to use indoor space more efficiently and enhance the effect of decorating the interior, a cooking appliance in which ovens of different cooking methods are stacked in two layers has been released. In addition, such a two-layer stacked cooking appliance is also used as a built-in method.

Built-in ovens stacked in two stages have problems that did not occur in existing individual ovens. For example, a tank for storing electric parts of an oven or water for steam to be supplied to the inside of the oven is generally provided in a space above the cavity of the oven. However, when a two-layered cooking appliance is configured by installing an oven of a different cooking method on top of such an oven, the space of the two oven cooking compartments must be wider, while the overall height of the two ovens is limited.

Accordingly, the height of the space that can be occupied by electric parts or water tanks installed between the upper and lower ovens is inevitably reduced. However, since the cooking chamber of the oven installed in the lower part rises to a considerably high temperature, problems may occur in cooling electric components or water tanks (made of synthetic resin) that are installed in a narrow space and are vulnerable to heat. However, the two-layer stacked cooking appliances disclosed in Patent Documents 1 and 2 do not have any solution to this problem.

In particular, when it is installed in a built-in manner and it is difficult to introduce outside air other than the front of the oven, and the door disposed in front of the upper and lower ovens covers the entire front surface of the oven, there is a slight gap between the upper and lower ovens. There is a limit to introducing outside air into the housing of the oven through the gap.

However, if the distance between the upper oven and the lower oven is set large, this solution is not preferable in that the volume of the cooking chamber must be reduced while increasing the overall height of the two-layered cooking appliance.

Next, producers of normal cooking appliances produce and commercialize individual ovens of different cooking methods, respectively, and, on the other hand, as disclosed in Patent Documents 1 and 2, when producing a two-layer stacked cooking appliance, the individual ovens and Design, produce, and commercialize other ovens. If it is possible for a producer to configure both individual oven products and two-layer stacked cooking appliances with the same oven, production efficiency can be greatly increased in that there is no need to build a separate production line and parts can be shared. .

However, as discussed above, if a cooling structure different from that of individual oven products is applied to the two-layer stacked cooker to cool the electric parts or water tank installed between the upper and lower two ovens of the two-layer stacked cooker, as described above, As a result, this causes the inconvenience of building a separate production line and failing to share parts.

Publication No. 2018-28691 Patent Publication No. 2018-80062 Registered Patent Publication No. 1859320

The present invention has been made to solve the above-mentioned problems, and even in a situation in which a two-layered cooking appliance is scheduled to be used in a built-in method and there is no space for introducing outside air other than the space in front of the oven, the two cooking appliances An object of the present invention is to provide a cooling structure for a cooking appliance having a cooling structure capable of smoothly cooling parts disposed in a narrow space therebetween.

Another object of the present invention is to provide a cooling structure for a cooking appliance capable of increasing the size of a cooking chamber while reducing the overall height of the cooking appliance.

Another object of the present invention is to provide a cooking appliance capable of smoothly cooling even large-volume parts installed in a narrow space.

In addition, an object of the present invention is to provide a cooling structure of a cooking appliance that does not require a change in the cooling structure even when the upper cooking appliance and the lower cooking appliance are used as individual cooking appliance products or used as a two-layer stacked cooking appliance. .

The cooking appliance of the present invention includes a first cooking appliance (1) and a second cooking appliance (2) spaced apart from each other above the first cooking appliance (1).

The first cooking device 1 and the second cooking device 2 operate in different heating methods. The operating method of the first cooking appliance 1 may include a direct heating method such as a gas heating method or an electrothermal heating method. In contrast, the second cooking device 2 may be an indirect heating method such as a microwave oven (microwave) or induction heating (IH).

Therefore, the temperature environment inside the first housing 11 constituting the first cooking appliance 1 may be a higher temperature environment than the temperature environment inside the second housing 21 constituting the second cooking appliance 2. there is.

The first cooking appliance 1 includes a first housing 11 having a first cooking compartment 12 that opens forward, and is rotatably installed in front of the first housing 11 so as to be able to rotate the first cooking compartment. The first door 13 that opens and closes the first housing 12 and is installed around the opening of the first cooking compartment 12 in front of the first housing 11 and faces the rear surface of the first door 13. It includes a closing panel (17). An outer edge of the finishing panel 17 may be backward-bent to form a backward-bent portion 171 .

It is a space located behind the portion of the closing panel 17 located above the first cooking compartment 12, and the space corresponding to the upper part of the first housing 11 controls the first cooking appliance 1. A first component including a substrate such as a circuit and a water tank for supplying steam to the inside of the first cooking appliance 1 may be installed. Since the space inside the first cooking compartment 12 of the first cooking appliance is heated to a very high level, cooling of the substrate or the water tank is required.

A first fan 14 is disposed at the upper rear of the first cooking appliance 1 . The first fan may be a cross fan. The first fan 14 sucks front air backward in the space above the first housing 11 . Accordingly, the parts requiring cooling can be cooled by the flow of air. The air sucked into the first fan 14 is pressurized and discharged downward to the space behind the first cooking compartment 12 .

A first air flow hole 131 is provided in the lower part of the first door 13, and the closing panel 17 disposed on the upper part of the first cooking compartment 12 at the upper rear side of the first door 13 and A second air flow hole 132 is provided in the facing portion. An upper through hole 111 is provided at a portion of the closing panel 17 facing the second air flow hole 132 . Therefore, when the first fan 14 is operated, air outside the front of the first cooking appliance flows into the first door 13 through the first air flow hole 131 and flows along the first door 13. The air flowing upward and flowing through the first door 13 flows in the upper space of the first housing 11 through the second air flow hole 132 and the upper through hole 111 and moves backward. It is sucked into the first fan (14).

A lower through hole 113 is provided in the lower part of the first cooking compartment 12 in front of the first housing 11 . Therefore, when the air sucked into the first fan 14 is discharged, the discharged air flows through the space provided at the rear and bottom of the first cooking compartment 12 in the first housing 11, and then the lower through hole ( Air is discharged to the outside of the first cooking appliance 1 through 113).

The first component includes a water tank assembly (3). The water tank assembly 3 includes a water tank 31 and a water tank case 32 . These may be, for example, synthetic resin injection moldings. The water tank case 32 is fixed to the upper surface of the first housing 11 . The closing panel 17 is provided with an opening 172 open to the front, and the water tank case 32 is opened forward toward the opening 172 . The water tank case 32 accommodates the water tank 31 in a retractable and withdrawable manner.

The opening 172 of the closing panel 17 is hidden behind the first door 13 in a closed state. The user can open the first door 13 and insert or remove the water tank 31 from the water tank case 32 through the exposed opening 172 .

Water for supplying steam to the inside of the first cooking compartment 12 is stored in the water tank 31 . Water in the water tank 31 may be moved to a heating unit through a pump or the like, and then converted into steam and supplied to the first cooking compartment 12 .

At least a part of the upper part of the water tank case 32 is open. Through such an open area, after-sales service and the like can be more easily performed. In addition, the portion of the water tank case 32 that is open to the upper part allows the cooling air supplied from the side of the second cooking device to the upper space of the first housing to directly come into contact with the water tank 31 . Thus, the water tank 31 is cooled more efficiently.

The cooling structure of the first cooking appliance 1 may maintain the cooling structure as it is regardless of whether the first cooking appliance is manufactured as a single product or in the form of a two-layered cooking appliance. For example, when the first cooking appliance is manufactured as a single product, there is no problem in cooling the water tank assembly 3, which is the first component, because a sufficient space above the first housing can be secured. In addition, when the first cooking appliance is manufactured by arranging the lower part of the two-layer laminated product, even if the space above the first housing is narrow, the cooling air of the second cooking appliance disposed on the upper part is supplied to the water tank assembly, which is the first component. In this way, cooling can be facilitated. Therefore, the first cooking appliance 1 has a cooling structure that can be used for both a single product and a two-layer laminated product.

The second cooking appliance 2 is installed at a predetermined distance from the first housing 11 on the top of the first cooking appliance 1 . The second cooking appliance 2 is fixed to the top of the first cooking appliance 1 by the supporter 5 .

The first part is disposed under the second cooking appliance 2 and in an upper space of the first housing.

The second cooking appliance 2 includes a second housing 21 defining the overall appearance of the second cooking appliance.

The supporter 5 fixes the upper edge portion of the side surface of the first housing and the lower edge portion of the side surface of the second housing while spaced apart from each other. These supporters 5 are disposed on both sides, that is, on the left and right sides between the first cooking device and the second cooking device. The supporter 5 has strength enough not to be installed on the front and rear sides. If the supporters 5 are not installed in front and rear of the first and second cooking appliances, the air cooling the upper space of the first housing can more smoothly flow in the front and rear directions.

The second housing 21 includes a second cooking compartment 22 that opens forward. A second door 23 rotatably installed in front of the second housing 22 to open and close the second cooking compartment 22 is installed in front of the second housing 22 . In addition, in front of the second housing 22, a second front member 27 extending outwardly in a direction crossing the front and rear directions from the second housing 21 so as to face the rear surface of the second door 23 is installed

The second housing 21 includes a top member 214, a bottom member 215, and a rear member 216. The top member 214 is disposed above the second cooking compartment 22 to define the upper space of the second cooking compartment in the second housing, and the bottom member 215 is disposed below the second cooking compartment 22 to define the upper space of the second cooking compartment 22. The lower space of the second cooking compartment is defined in the second housing, and the rear member 216 is disposed rearward than the second cooking compartment 22 to define the rear space of the second cooking compartment in the second housing. In the second housing, the upper space and the rear space of the second cooking compartment communicate with each other at the rear upper portion of the second cooking compartment, and the rear space and lower space of the second cooking compartment communicate with each other at the rear lower portion of the second cooking compartment. . That is, an internal space communicating in a “c” shape is provided around the second cooking compartment in the second housing.

An area located above the front opening of the second cooking compartment 22 in the second front member 27 covers the front of the upper space. An upper through hole 211 is provided here.

In the upper space in the second housing 21, second components such as a magnetron, a control circuit board, and a power board are installed.

An area located below the front opening of the second cooking compartment 22 in the second front member 27 covers the front of the lower space. A lower through hole 213 is provided here. That is, the lower through hole 213 is disposed in the front lower part of the second housing 21 and communicates with the lower space in the second housing 21 .

The bottom member 215 is disposed below the second housing 21 and defines a lower boundary of the inner space of the second cooking appliance 2 . When the second cooking appliance 2 is used as an individual product or a single product, the bottom member 215 defines the bottom surface of the second cooking appliance 2 .

Inside the second housing 21, air from the outside of the second cooking appliance 2 is sucked so as to be introduced into the second housing 21, and the sucked air is directed to the lower space within the second housing 21. A second fan 24 for discharging is disposed. The second fan 24 may be disposed inside the second housing and above the second cooking compartment 22 .

As the second fan 24 operates, the outside air in front of the second cooking appliance enters the upper space of the second cooking compartment 22 in the second housing 21 through the upper through hole 211. After being sucked into the second fan 24, it is discharged to the rear.

The air discharged from the second fan flows sequentially through the rear space and the lower space provided at the rear and bottom of the second cooking compartment 22 in the second housing 21, and then passes through the lower through hole 213. It is discharged out of the front of the second cooking appliance 2. Accordingly, among the heat generated in the second cooking compartment, heat transmitted to the outside and the second part may be cooled by air flowing by the second fan.

Since the second cooking device 2 is a heating type cooking device with less heat generated than the first cooking device 1, the flow is caused by the second fan 24 while the second cooking device 2 is operating. The internal temperature environment of the second housing 21 cooled by the air being cooled is the first housing cooled by the air flowing by the first fan 14 while the first cooking appliance 1 is operating. 11) The temperature inside is lower than the environment.

An air supply hole 217 is provided in the bottom member 215 to supply at least a portion of the air flowing in the lower space in the second housing 21 to the bottom of the bottom member 215 .

In a state where the second cooking appliance 2 is installed above the first cooking appliance 1, the air supply hole 217 is the first part installed on the upper surface of the first housing 11, that is, the water tank assembly 3 is placed on top of

A plurality of air supply holes 217 may be provided. The air supply hole 217 may have a long hole shape extending in the left and right directions.

A plurality of air supply holes 217 may be spaced apart from each other at predetermined intervals in the front-back direction. An area where the plurality of air supply holes 217 are disposed may substantially correspond to the first part. Therefore, air can be evenly supplied to most of the area of the first part.

A vane 218 extending backward and upward from the bottom member 215 may be provided in front of the air supply hole 217 . The vane 218 may be molded together when forming the air supply hole 217 by press-forming a part of the bottom member 215 made of a metal plate.

The vane 218 does not protrude further downward than the bottom member 215, functions to hide the inside from the outside of the second housing, and transfers a portion of the cooling air flowing from the rear to the front through the air supply hole. Guide towards (217).

The air flowing in the upper part of the bottom member 215 is the air discharged by the second fan. On the other hand, the air flowing through the lower part of the bottom member 215, that is, the upper part of the first housing 11, is the air being sucked in by the first fan. Therefore, the air above the bottom member 215 is smoothly supplied to the bottom of the bottom member 215 through the air supply hole 217 . Accordingly, the first component disposed under the air supply hole 217 can be smoothly cooled.

When the first cooking appliance 1 cooks, both the first fan 14 and the second fan 24 operate regardless of whether the second cooking appliance 2 is cooking. Then, the first part in the narrow space is also smoothly cooled by the cooler air supplied from the second fan of the second cooking appliance.

On the other hand, when the second cooking device 2 is operating and the first cooking device 1 is not operating, the second fan 24 operates and the first fan 14 does not operate. .

The cooling structure by the second fan 24 of the second cooking appliance 2 described above can be applied as it is even if the second cooking appliance 2 is used as a single product, and the second cooking appliance 2 Even if it is used as a two-layer laminated product, it can be applied as it is. That is, there is no problem in cooling even when used as an individual product in the state of having the air supply hole 217.

According to the cooking appliance of the present invention, even in a situation in which a two-layer stacked cooking appliance is scheduled to be used in a built-in manner and there is no space for introducing outside air other than the space in front of the oven, the narrow space between the two cooking appliances The placed parts can be smoothly cooled.

Accordingly, the present invention can increase the size of the cooking chamber while reducing the overall height of the cooking appliance.

In addition, since the present invention can uniformly supply cooling air over a wide area downward to the upper space of the first housing, it is possible to smoothly cool components with a large volume installed in a narrow space.

In addition, in the present invention, even when the upper and lower cooking appliances are used as individual cooking appliances or used as a two-layer stacked cooking appliance, the cooling structure does not need to be changed. Accordingly, the first cooking appliance and the second cooking appliance may be configured as separate products without a separate design change, or a two-layer stacked cooking appliance may be configured by stacking them.

In addition, according to the cooking appliance of the present invention, since mutual stacking and fixation are performed on both sides of the first cooking appliance and the second cooking appliance, the space between the two ovens may be configured to open in the forward and backward directions. Accordingly, even if the space between the two ovens is narrow, a smooth airflow may be induced to smoothly cool the parts to be cooled in the space. Therefore, the height of the space between the two ovens can be minimized, the overall height of the cooking appliance can be reduced, and the volume of the cooking chamber can be increased to that extent.

1 is a perspective view of an embodiment of a first cooking appliance installed under a cooking appliance according to the present invention.
2 is a perspective view illustrating a state in which a second cooking appliance is stacked on top of a first cooking appliance.
3 is a cross-sectional perspective view of a side surface in a state in which a first cooking appliance and a second cooking appliance are stacked.
FIG. 4 is a perspective view showing a state in which the first cooking appliance and the second cooking appliance of FIG. 3 are stacked.
5 is a side cross-sectional view of the second cooking appliance.
Figure 6 is a side cross-sectional view of Figure 4;
FIG. 7 is a side cross-sectional view showing an enlarged portion of the second cooking appliance in FIG. 6 .
8 is a side cross-sectional view showing an enlarged portion of the first cooking appliance in FIG. 6 .
FIG. 9 is an enlarged side cross-sectional view of a portion where the first cooking appliance and the second cooking appliance are coupled to each other in FIG. 6 .
FIG. 10 is an enlarged cross-sectional perspective view of a side portion where a water tank assembly is installed in FIG. 4 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, but only the present embodiments make the disclosure of the present invention complete and the scope of the invention completely covered by those skilled in the art. It is provided to inform you.

[Structure of cooking equipment]

Hereinafter, the overall structure of the cooking appliance according to the present invention will be described.

The cooking appliance according to the present invention has a structure in which a first cooking appliance 1 and a second cooking appliance 2 having different heating methods are stacked in two layers in the vertical direction.

The first cooking device 1 and the second cooking device 2 operate in different heating methods. The operating method of the first cooking appliance 1 may include a direct heating method such as a gas heating method or an electrothermal heating method. In contrast, the second cooking device 2 may be an indirect heating method such as a microwave oven (microwave) or induction heating (IH). The direct heating method generates more heat than the indirect heating method. Therefore, the temperature environment inside the first housing 11 constituting the first cooking appliance 1 may be a higher temperature environment than the temperature environment inside the second housing 21 constituting the second cooking appliance 2. there is.

According to the present invention, a part of the cooling air of the second cooking appliance having a relatively low internal environment is supplied to parts requiring cooling in the first cooking appliance to cool them. The part requiring cooling may be installed on the side of the first cooking appliance in a space where the first cooking appliance and the second cooking appliance face each other.

In the embodiment of the present invention, the lower first cooking device is an oven using gas combustion and/or an electric heater, and the upper second cooking device is a microwave microwave oven. However, if the second cooking appliance is a cooking method with a lower calorific value than the first cooking appliance, the type of cooking appliance is not limited thereto.

<Cooking Appliance 1>

The first cooking device 1 may be, for example, a burner to which a heating method including a gas burner, a broil burner, an electric heat burner, or a combination thereof is applied. A first cooking compartment 12 is provided inside the first cooking appliance 1, and the first cooking compartment 12 is opened forward. Accordingly, the first housing 11 defining the overall appearance of the first cooking appliance 1 includes a hollow rectangular parallelepiped shape that is open to the front.

In front of the first cooking appliance 1, a first door 13 that opens and closes by rotating based on a horizontal axis of a lower portion is installed. In the first door 13, transparent windows through which the first cooking compartment 12 can be viewed from the outside are installed in double at intervals in the front-back direction. A handle capable of pulling and opening the first door 13 may be provided at an upper portion of the first door 13 .

The inner wall of the cooking space facing the user from the front is defined by the inner wall panel 16 of the cooking chamber. Among the volumes of the first cooking compartment 12, the volume usable by the user for cooking is defined by the inner wall panel 16 of the cooking compartment. In order to isolate the hot air environment inside the inner wall panel 16 of the cooking compartment from the outer space of the first cooking compartment 12, the first cooking compartment 12 further includes an outer wall panel of the cooking compartment. The outer wall panel of the cooking chamber includes a rear outer wall panel 161 of the cooking chamber disposed rearward and spaced apart from the inner wall panel 16 of the cooking chamber, and a lower outer wall panel 162 of the cooking chamber disposed below the inner wall panel 16 and spaced apart from the cooking chamber. do. An upper panel 115 of the first housing 11 is disposed above the inner wall panel 16 of the cooking chamber.

That is, the first cooking compartment 12 includes a high-temperature cooking space defined by the inner wall panel 16 of the cooking compartment and a space that surrounds the cooking space to thermally partition and isolate the cooking space from the outside. include Therefore, when the first cooking appliance is in operation, the temperature of the cooking space provided inside the inner wall panel 16 of the cooking compartment is the highest even within the first cooking compartment 12 . In the first cooking compartment 12, the space between the rear outer wall panel 161, the lower outer wall panel 162, and the upper panel 115 and the inner wall panel 16 of the cooking compartment is inside the inner wall panel 16 of the cooking compartment. This space divides the high-temperature environment of the space from the environment outside the first cooking compartment 12.

The first housing 11 includes the upper panel 115, the rear panel 116 spaced apart from the rear outer wall panel 161 of the first cooking compartment 12, and the rear panel 116. and a lower panel 117 connected to the lower end of the first cooking compartment 12 and spaced apart from the lower outer wall panel 162 of the first cooking compartment 12 . The rear panel 116 and the lower panel 117 define a rear end and a lower end of the first cooking appliance.

The space between the first cooking compartment 12 of the first housing 11 and the rear panel 116 communicates with the upper space of the upper panel 115 upwardly and downwardly with the first cooking compartment ( 12) communicates with the space between the lower panel 117. That is, an internal space communicating in a “b” shape is provided around the second cooking compartment at the rear and bottom of the first housing 11, and communicates with the upper space of the first housing 11.

A predetermined space is provided inside the first door 13 provided in front of the cooking chamber. A first air flow hole 131 through which air flows is provided near the bottom surface of the first door 13 . The first air flow hole 131 is provided at the bottom of the first door 13 and is invisible to the user. A second air flow hole 132 is similarly provided on the rear upper portion of the first door 13 . Since the second air flow hole is also on the rear side of the first door, the second air flow hole 132 is invisible to the user when the first door 13 is closed.

A closing panel 17 facing the rear surface of the first door 13 is provided in front of the first housing 11 . The front side of the finishing panel 17 is a part that is visible to the user around the opening of the first cooking compartment 12 when the user opens the first door 13 . In addition, the inner surface of the inner wall panel 16 of the cooking chamber is also a conspicuous surface when the user opens the first door. Accordingly, the inner wall panel 16 of the cooking chamber and the finishing panel 17 may be integrally molded, and the surface may be enamel-treated to improve aesthetics.

A predetermined space is provided on the top of the first housing 11, that is, on the top panel 115. In addition, in this space, a water tank assembly 3 for storing water for steam to be supplied to the inside of the first cooking compartment 12 and a circuit board (not shown) mounted with electrical components controlling the first cooking device 1 are installed. First parts are installed. The first components are components requiring cooling.

The second cooking appliance 2 is installed higher than the predetermined space provided above the first housing 11 through the supporter 5 to define the upper limit of the upper space of the first housing 11. In addition, the closing panel 17 protrudes and extends from the front of the first housing 11 to an upper portion of the upper surface of the first housing 11 to cover the front of the upper space of the first housing 11 .

Since the outer end of the closing panel 17 has a backward bent portion 171 bent to extend rearward, it is possible to prevent the edge of the panel from being visible from the outside. In addition, an opening 172 through which the water tank 31 can be inserted or taken out of the water tank case 32 is provided on the upper right side of the finishing panel 17 . An upper through hole 111 communicating the upper space of the first housing 11 partitioned by the finishing panel 17 and the space in front of the oven is provided on the upper left side of the finishing panel 17 .

The water tank case 32 is disposed adjacent to the rear surface of the finishing panel 17 and is installed on the upper panel 115 . The water tank case 32 may have a box shape in the form of a flat rectangular parallelepiped with an open front. The front opening of the water tank case 32 is aligned with the opening 172 of the finishing panel.

The water tank 31 may be a hollow rectangular parallelepiped container having a size that can be accommodated in the water tank case 32 . The user can insert or remove the water tank 31 from the water tank case 32 through the opening 172 in front of the oven.

Water for supplying steam to the inside of the first cooking compartment 12 is stored in the water tank 31 . Water in the water tank 31 may be moved to a heating unit through a pump or the like, and then converted into steam and supplied to the first cooking compartment 12 .

An opening 33 is provided on a part of the surface defining the upper portion of the water tank case 32 . Accordingly, the water tank 31 accommodated in the water tank case 32 may be exposed to the outside of the water tank case through the opening 33 . The opening 33 promotes the convenience of maintenance work in the after-sales service process. In addition, the opening 33 can increase the cooling efficiency of the water tank 31 accommodated inside the water tank case 32 .

The water tank and the water tank case may be made of synthetic resin, and cooling may be required in a hot environment.

The opening 172 of the closing panel 17 is hidden behind the first door 13 in a closed state. Accordingly, the user can open the first door 13 and insert or remove the water tank 31 from the water tank case 32 through the exposed opening 172 .

The upper through hole 111 of the closing panel 17 faces and communicates with the second air flow hole 132 provided on the upper side of the rear surface of the first door 13 in a closed state. do.

A first fan 14 is installed at the rear of the upper space of the first housing 11 . The first fan may be a turbo fan having a rotation shaft extending left and right. The turbo fan 14 sucks air in front of the upper space of the first housing 11 and discharges it to the space behind the first cooking compartment 12 in the first housing 11 . In addition, a lower through hole 113 communicating with the rear space of the first cooking compartment 12 and open forward is provided at the lower front portion of the first housing 11 .

Therefore, when the turbo fan 14 operates, the outside air in the lower part in front of the first oven flows into the first door through the first air flow hole 131 provided in the lower part of the first door 13 and rises. do. In this process, the heat transferred from the first cooking compartment 12 to the first door 13 is cooled.

Air rising from the inside of the first door 13 is introduced into the upper space of the first housing 11 through the second air flow hole 132 and the upper through hole 111 and is sucked into the turbo fan 14 . In this process, the first components in the upper space of the first housing 11 may be cooled. However, when the upper space of the first housing 11 becomes narrow as the second cooking appliance 2 is installed, only the air that has already been heated through the first door 13 is used as an electric component disposed above the first housing 11. However, cooling of the water tank and the water tank case may not be performed smoothly. A solution to this problem will be described later.

The air discharged downward from the turbo fan 14 flows along the space provided at the rear and bottom of the first cooking compartment 12 within the first housing 11, and passes through the lower through hole 113 to the front of the first cooking appliance. discharged to the bottom The rear space of the first cooking compartment 12 through which air flows may be defined as a space between the rear outer wall panel 161 and the rear panel 116 of the cooking compartment, and the lower space of the first cooking compartment 12 through which air flows is It may be defined as a space between the lower outer wall panel 162 and the lower panel 117 of the cooking chamber. The lower through hole 113 may be defined as a gap between the front end of the lower outer wall panel 162 of the cooking chamber and the front end of the lower panel 117 .

The cooling structure of the first cooking appliance may be utilized as it is even when individual products are manufactured with the first cooking appliance alone. When the first cooking appliance is manufactured as an individual product, an upper space of the first housing 11 may be partitioned by installing a cover (not shown) on the top of the first housing. When the first door 13 is closed, the opening 172 of the closing panel 17 is covered. Accordingly, it is difficult to form a path through which external air flows into the upper space of the first housing around the opening. However, if a cover (not shown) is installed on the upper part of the first housing to sufficiently secure the upper space of the first housing, air inflow paths may be provided through other parts.

Therefore, when the first cooking appliance is used as a stand-alone product, a sufficient upper space of the first housing 11 is secured so that the first components can be sufficiently cooled only by the cooling by the first fan 14 .

Meanwhile, as will be described later, even if the first cooking appliance is used together with the second cooking appliance in a two-tiered stacked structure, the cooling structure of the second cooking appliance may also be involved in cooling the first part of the first cooking appliance. When this structure is applied, there is no need to change the cooling structure of the first cooking appliance using the first fan.

That is, the cooling structure of the first cooking appliance may not be changed even when the first cooking appliance is used alone or in a two-tier stack.

<2nd cooking device>

The second cooking device 2 may be, for example, a microwave oven (microwave oven). A second cooking chamber 22 is provided inside the second cooking device 2, and the second cooking chamber 22 is also opened forward. Therefore, the user can access both the first cooking compartment and the second cooking compartment from the front of the cooking appliance.

The second housing 21 defining the overall appearance of the second cooking appliance 2 includes a rectangular parallelepiped shape that is open to the front. The second cooking compartment 22 is defined by a cooking compartment panel 221 accommodated in the second housing 21 . The cooking compartment panel 221 includes a rectangular parallelepiped shape open to the front.

The second housing 21 includes an upper member 214 spaced apart from above the second cooking compartment 22, a rear member 216 spaced apart from the rear of the second cooking compartment 22, and the second housing 21. A bottom member 215 spaced apart from the bottom of the cooking chamber 22 is included.

The bottom member 215 defines a lower boundary of the inner space of the second cooking appliance 2 . That is, when the second cooking appliance 2 is used as an individual product or a single product, the bottom member 215 defines the bottom surface of the second cooking appliance 2 .

A space between the cooking compartment panel 221 and the top member 214 in the second housing 21 may be defined as an upper space of the second cooking compartment 22 . In the second housing 21, the rear space and the lower space of the second cooking compartment 22 may also be defined in the same way.

In front of the second cooking appliance 2, a second door 23 that opens and closes rotatably with respect to a horizontal axis of a lower portion is installed. A transparent window through which the second cooking compartment 22 can be viewed from the outside is installed on the second door 23 . In the microwave type oven, the temperature inside the second cooking compartment 22 does not rise as high as that of the first cooking compartment 12 . Therefore, unlike the first door 13, the need for cooling air to flow inside the second door is low.

According to the embodiment, a structure in which both the first door and the second door are opened and closed by a pull-down method is exemplified, but the opening method of the door is not necessarily limited thereto. For example, the second door and/or the first door may have a swing-type opening structure.

A second front member 27 facing the rear surface of the second door 23 is installed at the front of the second housing 21 . A portion of the second front member 27 positioned above the front opening of the second cooking compartment 22 covers an upper space of the second cooking compartment 22 . A portion of the second front member 27 positioned below the front opening of the second cooking compartment 22 covers the lower space of the second cooking compartment 22 . That is, the second front member 27 covers a space between the second housing 21 and the cooking chamber panel 221 .

An upper through hole 211 is provided in a region of the second front member 27 positioned above the front opening of the second cooking compartment 22 . A lower through hole 213 is provided in a region of the second front member 27 lower than the front opening of the second cooking compartment 22 . The upper through hole 211 allows an upper space of the second cooking compartment 22 in the second housing 21 to communicate with a space outside the front of the second cooking appliance 2 . Also, the lower through hole 213 allows the lower space of the second cooking compartment 22 in the second housing 21 to communicate with the space outside the front of the second cooking appliance 2 .

Even when the second door 23 is closed, the upper through hole 211 and the lower through hole 213 are not blocked by the second door 23 and communicate with the outside space. That is, the rear side of the second door 23 does not cover the upper through hole 211 and the lower through hole 213, but the front side of the second door 23 is out of the view of the person in front of the second cooking device 2. The upper through hole 211 and the lower through hole 213 are covered and hidden.

In the upper space of the second cooking compartment 22 in the second housing 21, second components such as a magnetron and a substrate on which a control circuit of the second cooking device is implemented are provided. In addition, a second fan 24 is provided in the upper space of the second housing 21 . The second fan may be a turbo fan 24 having a rotation shaft extending left and right. The turbo fan 24 sucks air from the front and discharges it to the rear.

In the second housing 21, the upper space and the rear space of the second cooking compartment 22 communicate with each other, and the rear space and the lower space communicate with each other. That is, an internal space communicating in a “c” shape is provided around the second cooking compartment in the second housing.

When the turbo fan 24 operates, the air outside the second cooking appliance 2 is introduced into the upper space of the second cooking compartment 22 through the upper through hole 211 and is sucked into the turbo fan 24 and then rearward. is discharged with The air discharged from the turbo fan 24 passes through the rear space and the lower space of the second cooking compartment 22 and is discharged back to the outside of the front of the second cooking appliance 2 through the lower through hole 213 . Accordingly, the electrical components and the second cooking compartment 22 provided in the upper space of the second cooking compartment 22 are cooled.

In a state where the second cooking appliance 2 is installed on top of the first cooking appliance 1, the bottom member 215 of the second housing 21 is spaced apart from the top panel 115 of the first housing 11. are placed

The second cooking appliance 2 may be a microwave oven with less heat generated than the first cooking appliance 1 . Therefore, while the second cooking appliance 2 is operating, the temperature inside the second housing 21 cooled by the air flowing by the second fan 24 is During cooling, the air flowing by the first fan 14 is lower than the temperature environment inside the first housing 11 to be cooled.

The supporter 5 is installed between the first cooking device 1 and the second cooking device 2 to fix the second cooking device 2 at a position spaced upward from the first cooking device 1. do. The supporter 5 connects and fixes side surfaces of the first cooking device 1 and the second cooking device 2 to each other. The supporter 5 is manufactured by bending a metal plate having a thickness of, for example, about 1.6 mm, and sufficiently firmly fixes the two cooking appliances by simply installing it on both sides of the two cooking appliances 1 and 2. Therefore, it is possible not to install the supporters 5 at the front and rear of the two cooking appliances. That is, the space between the bottom member 215 of the second housing 21 and the top panel 115 of the first housing 11 is not blocked by the supporter 5 in the front and rear directions.

In the present invention, i) the two cooking appliances 1 and 2 are stacked vertically, ii) the bottom member 215 of the second housing 21 and the top panel 115 of the first housing 11 are spaced apart iii) the temperature of the air flowing in the upper space of the first housing 11 to cool the first cooking appliance is lower than the temperature of the air flowing in the upper space of the first housing 11 In view of the fact that the temperature of the air flowing in the lower space of the second housing 21 is lower, at least a portion of the air flowing in the lower space in the second housing 21 is applied to the bottom member 215. An air supply hole 217 supplying a lower portion of the member 215 is further provided.

In a state in which the two cooking appliances 1 and 2 are stacked, the air flow at the upper portion of the bottom member 215 is the flow of air discharged by the second fan, and the air flow at the lower portion is the first air flow. It is the flow of air that is sucked in by the fan. Therefore, when the air supply hole 217 is formed in the bottom member 215, even if a separate fan is not installed, the air above the bottom member 215 is moved to the space below the bottom member 215 due to the pressure difference, that is, It can be naturally supplied to the upper space of the first housing 11.

Among the first components, the water tank assembly 3 has a larger dimension in the vertical direction compared to the circuit board. In addition, the water tank assembly 3 may be vulnerable to heat as it is a synthetic resin injection molding. Accordingly, when the height of the upper space of the first housing 11 is set low, there is no significant difference between the height of the upper space of the first housing 11 and the height of the water tank assembly 3. However, when the gap between the bottom member 215 and the water tank assembly 3 is narrow, the cooling air of the first cooking appliance generated by the first fan 14 alone is sufficient to cool the water tank assembly 3. It may not work smoothly.

Therefore, by disposing the air supply hole 217 above the water tank assembly 3, the water tank assembly can be smoothly cooled.

A plurality of air supply holes 217 may be provided. The air supply hole 217 may be a track-shaped long hole extending in the left and right directions.

A plurality of air supply holes 217 may be spaced apart from each other at predetermined intervals in the front-back direction. An area where the plurality of air supply holes 217 are disposed roughly corresponds to an area where the first component (water tank assembly) is disposed, but may be disposed slightly rearward of the first component in consideration of an air flow direction. Then, the cooling air of the second cooking appliance flowing by the second fan can be evenly supplied to most areas of the first part (water tank assembly).

A vane 218 may be provided in front of the air supply hole 217 and extending obliquely backward and upward from the bottom member 215 . The vane 218 may be molded together when forming the air supply hole 217 by press-forming a part of the bottom member 215 made of a metal plate. The vanes 218 may form an angle of about 30 degrees to 45 degrees with respect to the bottom member 215 .

The vane 218 guides a portion of the cooling air flowing from the rear to the front toward the air supply hole 217 . In addition, the vane serves to hide the inside from the outside of the second housing. Since the vane extends upward from the bottom member 215, it does not protrude further downward than the bottom member 215.

The above-described cooling structure of the second cooking appliance 2 by the second fan 24 and the air supply holes 217 and vanes 218 make the second cooking appliance 2 a single product or a two-stage product. It can remain the same regardless of whether it is commercialized as a layered cooking appliance.

Hereinafter, an assembly process of the cooking appliance and an operation of the cooking appliance will be described.

As shown in FIG. 1 , a first cooking appliance 1 that may be manufactured as an individual oven product is prepared. Then, supporters 5 are installed at both upper ends of the first cooking appliance 1, respectively.

Next, as shown in FIG. 5, a second cooking device 2 that can be manufactured as an individual microwave oven product is prepared. And, as shown in FIG. 3 , the second cooking device 2 is placed on the supporter 5 on top of the first cooking device 1 and fixed.

Since the cooking appliance can be installed in a built-in manner, as shown in FIG. 2 , it can be installed in the field without additional housing covering the side or rear side in a stacked state of the two ovens 1 and 2 .

Since the cooking appliance is installed in a built-in manner, there is no space to allow external air to flow into the oven or to discharge internal air to the outside except for the front of the product.

Accordingly, in the present invention, the turbo fan 24 installed in the upper portion of the second cooking compartment of the second cooking device 2 is used to direct air for cooling the second cooking device through the upper through hole 211 at the upper front of the second cooking device. introduced through The air introduced into the second housing 21 cools the second cooking appliance and is discharged through the lower through hole 213 at the front lower portion of the second housing 21 .

In addition, the flow of air for cooling the first cooking appliance 1 is generated by the turbo fan 14 installed at the rear of the upper part of the first oven. When the turbo fan 14 is operated, air is introduced through the first air flow hole 131 provided in the lower part of the first door 13, and passes through the inner space of the first door 13 and the upper space of the first housing, into the fan 14. The air discharged from the turbo fan 14 passes through the rear space and the lower space of the first housing, and then is discharged through the lower through hole 113 provided in the front lower part of the first oven.

The cooling structure of the first cooking appliance 1 and the cooling structure of the second cooking appliance 2, which operate separately, both suck in outside air from the front of the cooking appliance and direct the air used for cooling to the front of the cooking appliance. discharge with

When the second cooking device 2 is operating, the second fan 24 operates to cool the second cooking device 2, and when the first cooking device 2 is operating, the first cooking device ( For cooling of 1), the first fan 14 operates.

When only the second cooking device 2 operates, only the second fan 24 operates and the first fan 14 does not operate.

When both the first cooking device 1 and the second cooking device 2 operate, both the first fan 14 and the second fan 24 operate.

Even when only the first cooking appliance 1 operates, both the first fan 14 and the second fan 24 operate. When both the first fan 14 and the second fan 24 operate, the air discharged from the second fan flows from the rear to the front on the upper part of the bottom member 215 of the second housing, Air sucked in by the first fan flows from front to rear below the bottom member of the housing. Accordingly, the air above the bottom member is guided by the vane 218 and flows through the air supply hole 217 to the bottom of the bottom member. Since the air above the bottom member is cooler than the air below the bottom member, the first component disposed below the air supply hole 217 can be smoothly cooled.

As described above, the present invention has been described with reference to the drawings illustrated, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that variations can be made. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

1: 1st cooking appliance (lower oven)
11: first housing
111 upper through hole
113: lower through hole
115: upper panel
116: rear panel
117: lower panel
12: 1st cooking room
13: first door
131: first air flow hole
132: second air flow hole
14: 1st fan (turbo fan)
16: kitchen inner wall panel
161: kitchen rear outer wall panel
162: kitchen lower outer wall panel
17: finishing panel
171: backward bend
172: opening
2: Second cooking device (upper microwave)
21: second housing
211 upper through hole
213 lower through hole
214: top member
215: bottom member
216: rear member
217: air supply hole
218: Bane
22: 2nd cooking room
221: galley panel
24: 2nd fan (turbo fan)
27: second front member
3: Water tank assembly
31: water tank
32: water tank case
33: opening
5: Supporter

Claims (15)

a first cooking appliance (1) including a first housing (11) having a first cooking chamber (12); and
A cooking appliance having a second cooking appliance (2) including a second housing (21) installed at an upper portion of the first cooking appliance (1) at a predetermined interval from the first housing (11),
In the space between the first housing 11 and the second cooking appliance 2, a first part used for the first cooking appliance 1 is installed on the upper part of the first housing 11,
The first cooking appliance 1 is:
A first fan (14) that flows air above the first housing (11) to a space behind the first cooking compartment (12) to cool the first cooking appliance (1);
The second cooking device 2 is:
To cool the second cooking appliance 2, air outside the second cooking appliance 2 is introduced into the second housing 21, and the introduced air is directed to a lower space within the second housing 21. a second fan 24 for discharging;
It is disposed below the second housing 21 to define the lower boundary of the inner space of the second cooking appliance 2, and to the upper part of the space between the first housing 11 and the second cooking appliance 2. A bottom member 215 disposed; and
An air supply hole 217 provided on the bottom member 215 to communicate the lower space within the second housing 21 with the space between the first housing 11 and the second cooking appliance 2; do,
At least a portion of the air flowing in the lower space in the second housing 21 by the second fan 24 passes through the air supply hole 217 between the first housing 11 and the second cooking device ( 2) A cooking appliance that is supplied to the space between.
The method of claim 1,
The air supply hole 217 is disposed above the first part.
The method of claim 2,
The first component includes a water tank assembly (3) for storing water for supplying steam to the inside of the first cooking compartment (12).
The method of claim 3,
The water tank assembly 3 includes a water tank 31 drawn forward through an opening 172 provided in a closing panel 17 provided in front of the first housing 11 and inserted from the front. do,
The opening (172) is covered by the first door (13) in a closed state of the first door (13) for opening and closing the first cooking compartment (12).
The method of claim 3,
The water tank assembly 3 includes a water tank 31 and a water tank case 32 fixed to an upper surface of the first housing 11 and accommodating the water tank 31,
At least a part of the upper part of the water tank case 32 is open.
The method of claim 1,
The air flowing by the second fan 24 flows from the rear to the front in the lower space in the second housing 21,
A lower through hole 213 is further provided at the lower front portion of the second housing 21 to discharge air flowing forward in the lower space within the second housing 21 toward the front of the second oven.
The method of claim 1,
The air flowing by the second fan 24 flows from the rear to the front in the lower space in the second housing 21,
A cooking appliance in which a vane 218 extending backward and upward from the bottom member 215 is provided in front of the air supply hole 217.
The method of claim 1,
The air flowing by the second fan 24 flows from the rear to the front in the lower space in the second housing 21,
The air supply hole 217 has a shape extending in the left and right directions, and a plurality of air supply holes 217 are arranged in the front and rear directions.
The method of claim 6,
The second cooking device 2,
a second cooking compartment 22 provided inside the second housing 21 and opened forward; and
A second door 23 opening and closing the second cooking compartment 22;
The lower space in the second housing (21) includes a space provided under the second cooking compartment (22).
The method of claim 9,
The second cooking device 2 is a microwave oven,
The first cooking appliance (1) is an oven.
The method of claim 9,
The second cooking device 2,
a second front member 27 provided in front of the second housing 21 to face the rear surface of the second door 23; and
The cooking appliance further comprising an upper through hole 211 provided in an area located above the front opening of the second cooking compartment 22 in the second front member 27.
The method of claim 11,
As the second fan 24 operates,
Outside air in front of the second cooking appliance is introduced into the second housing 21 through the upper through hole 211 and into the upper portion of the second cooking compartment 22,
The cooking appliance is discharged to the outside in front of the second cooking appliance (2) through the lower through hole (213) after flowing in the space provided at the rear and bottom of the second cooking compartment (22).
The method of claim 1,
A first air flow hole 131 is provided at the bottom of the first door 13 that opens and closes the first cooking compartment 12,
A second air flow hole 132 is provided at the upper part of the rear surface of the first door 13 facing the finishing panel 17 disposed above the first cooking compartment 12,
An upper through hole 111 is provided at a portion of the closing panel 17 facing the second air flow hole 132,
A lower through hole 113 is provided in the lower part of the first cooking compartment 12 in front of the first housing 11,
As the first fan 14 rotates, air outside the front of the first cooking appliance flows into the first door 13 through the first air flow hole 131 and flows along the first door 13. The air flowing upward and flowing through the first door 13 flows in the upper space of the first housing 11 through the second air flow hole 132 and the upper through hole 111 and moves backward. The air that has moved backward from the upper space of the first housing 11 flows through the space provided at the rear and bottom of the first cooking compartment 12 within the first housing 11 and then passes through the lower through hole 113. A cooking appliance that is discharged to the outside of the first cooking appliance (1).
The method of claim 1,
When the first cooking appliance 1 is in a cooking operation, both the first fan 14 and the second fan 24 operate regardless of whether the second cooking appliance 2 is in a cooking operation or not. .
The method of claim 14,
When the second cooking appliance 2 is in a cooking operation and the first cooking appliance 1 is not in a cooking operation, the second fan 24 operates and the first fan 14 does not operate. .

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