KR-20260066998-A - COOKING APPLIANCE

KR20260066998AKR 20260066998 AKR20260066998 AKR 20260066998AKR-20260066998-A

Abstract

An invention relating to a cooking appliance is disclosed. The disclosed invention comprises: a fan cover installed in a cooking chamber and a fan that generates airflow inside the fan cover, wherein the fan cover comprises a front discharge port forming a passage connecting the inside of the fan cover and the cooking chamber, and a guide projection that blocks the flow of airflow around the front discharge port, and wherein the guide projection is positioned on the forward side of the front discharge port with respect to the direction of airflow.

Inventors

이수용
박경준
양재경
곽동성
양학순

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260512
Application Date: 20241105

Claims (13)

A main body in which a cooking chamber is formed inside; A fan installed on the above main body and rotating around a rotation axis extending in the front-rear direction to generate airflow; and It includes a fan cover that forms a divided receiving space to accommodate the fan inside the cooking chamber; and the fan cover, A front discharge port forming a front-rear passage connecting the cooking chamber and the receiving space on the front of the fan cover; and It includes a guide projection that protrudes from the front of the fan cover into the receiving space and blocks the flow of airflow in the receiving space formed along the rotational direction of the fan around the front discharge port. A cooking device in which, with respect to the direction of airflow flowing in the above receiving space, the guide projection is positioned on the forward side compared to the front discharge port.
In paragraph 1, The guide projection positioned above the rotation axis is positioned above the front discharge port, and The guide projection positioned below the rotation axis is a cooking device positioned below the front discharge port.
In paragraph 1, A pair of the above guide projections are arranged in an up-and-down direction with the rotation axis in between, and A cooking device in which, with respect to the vertical direction, the front discharge port is positioned between a pair of guide protrusions.
In paragraph 1, A plurality of the above-mentioned front discharge ports are arranged along the rotational direction of the above-mentioned fan, and The above guide projection includes an upper guide projection positioned above the rotation axis and a lower guide projection positioned below the rotation axis. The upper guide projection is positioned above the front discharge port, and The above lower guide projection is a cooking device positioned below the front discharge port.
In paragraph 1, The above front discharge port includes an upper front discharge port positioned above the rotation axis and a lower front discharge port positioned below the rotation axis. The above guide projection includes an upper guide projection positioned adjacent to the upper front discharge port and a lower guide projection positioned adjacent to the lower front discharge port. The above upper guide projection is positioned above the upper front discharge port, and The above lower guide projection is a cooking device positioned below the lower front discharge port.
In paragraph 1, The above-mentioned front discharge port includes a first front discharge port and a second front discharge port, and On a coordinate plane that is orthogonal to the rotation axis and has its origin positioned on the rotation axis, the first front discharge port and the second front discharge port are positioned at different locations, and The above fan rotates in a forward direction to discharge the main stream of airflow from within the receiving space through the first front discharge port into the cooking chamber, or rotates in a reverse direction to discharge the main stream of airflow from within the receiving space through the second front discharge port into the cooking chamber. A cooking appliance comprising a guide projection, the guide projection comprising a first guide projection that diverts the flow direction of the airflow flowing in the receiving space to a direction passing through the first front discharge port, and a second guide projection that diverts the flow direction of the airflow flowing in the receiving space to a direction passing through the second front discharge port.
In paragraph 6, The first front discharge port and the second front discharge port are arranged along the rotational direction of the fan, and Regarding the above forward direction, the first guide projection is positioned on the forward side of the first front discharge port closest thereto, and Regarding the above reverse direction, the second guide projection is a cooking device positioned on the front side of the second front discharge port closest thereto.
In Paragraph 7, On the above coordinate plane, a plurality of the first front discharge ports and a plurality of the second front discharge ports are each positioned at different locations, and The first front discharge port and the second front discharge port are arranged alternately along the rotational direction of the fan, and A cooking device in which the first guide projection and the second guide projection are alternately arranged along the rotational direction of the fan.
In paragraph 6, Among the quadrants of the coordinate plane divided by the front-rear axis and the up-down axis meeting the origin, the first front discharge port is disposed in at least one of the second quadrant and the fourth quadrant, and the second front discharge port is disposed in at least one of the first quadrant and the third quadrant. In the first quadrant and the second quadrant, the first guide projection is positioned above the first front discharge port or the second guide projection is positioned above the second front discharge port, and A cooking device in which, in the third quadrant and the fourth quadrant, the first guide projection is positioned below the first front discharge port or the second guide projection is positioned below the second front discharge port.
In Paragraph 9, The first front discharge port includes a first upper front discharge port positioned in the second quadrant and a first lower front discharge port positioned in the fourth quadrant. A cooking device comprising the above first guide projection, a first upper guide projection positioned above the first upper front discharge port in the second quadrant, and a first lower guide projection positioned below the first lower front discharge port in the fourth quadrant.
In Paragraph 9, The second front discharge port includes a second upper front discharge port positioned in the first quadrant and a second lower front discharge port positioned in the third quadrant. A cooking device comprising the above second guide projection, a second upper guide projection positioned above the second upper front discharge port in the first quadrant, and a second lower guide projection positioned below the second lower front discharge port in the third quadrant.
In paragraph 1, The above fan is positioned on the rear side of the front of the fan cover, and The above guide projection forms a horizontal plane protruding from the front to the rear of the above-mentioned fan cover.
In Paragraph 12, The above guide projection is formed by being bent backward around the upper or lower end connected to the front of the fan cover after a portion of the front of the fan cover is cut, and The above-mentioned front discharge port is a cooking device formed in the portion separated from the guide projection on the front of the fan cover.

Description

Cooking Appliance The present invention relates to a cooking appliance, and more specifically, to a cooking appliance equipped with a convection device. Cooking appliances are household appliances installed in a kitchen space to cook food according to the user's intentions. Such cooking appliances can be classified in various ways depending on the heat source or form used, or the type of fuel. When classifying cooking appliances according to the form in which food is cooked, they can be classified into open and closed types based on the shape of the space where the food is placed. Closed cooking appliances include ovens and microwave ovens, while open cooking appliances include cooktops, hobs, and griddles. A sealed cooking appliance is a cooking device that shields the space where food is placed and cooks the food by heating that shielded space. A sealed cooking appliance is provided with a cooking chamber, which is a space that is shielded when food is placed and cooked. This cooking chamber effectively becomes the space where the food is cooked. A sealed cooking appliance is provided with a rotatable door that selectively opens and closes the cooking chamber. The door is rotatably installed on the main body by means of a door hinge provided between the main body, which has a cooking chamber formed inside, and the door. By rotating the door around the part connected to the main body through the door hinge, the cooking chamber can be selectively opened and closed. A heat source is provided to the interior space of the cooking chamber that is opened and closed by the above door to heat the cooking chamber. A gas burner or an electric heater may be used as such a heat source. Meanwhile, a convection device may be further provided at the rear of the cooking chamber. The convection device is a device that performs the operation of circulating air inside the cooking chamber so that heat is evenly distributed throughout the entire cooking chamber. Such a convection device may include a fan cover installed on the rear wall of the cooking chamber and a convection fan installed in the internal space of the fan cover. An intake port and an exhaust port may be provided in the fan cover. Of these, the intake port may be formed in the center of the front of the fan cover facing the door, and the exhaust port may be formed on the side of the fan cover facing the side of the cooking chamber. The convection fan rotates inside the fan cover and can generate airflow. Through this convection fan, an air circulation flow can be created in which air from the cooking chamber is drawn into the fan cover through the intake port, and air heated inside the fan cover is discharged into the cooking chamber through the exhaust port. FIG. 1 is a perspective view illustrating a cooking device according to one embodiment of the present invention. FIG. 2 is a front view showing the door open state of the cooking appliance illustrated in FIG. 1. Figure 3 is a side cross-sectional view showing the internal structure of the cooking appliance illustrated in Figure 1. Figure 4 is a side cross-sectional view showing the structure of the convection device illustrated in Figure 3. FIG. 5 is a front perspective view showing the fan cover shown in FIG. 4 separated. FIG. 6 is a front perspective view showing the fan shown in FIG. 4 separated. Figure 7 is a front view showing the fan cover shown in Figure 4 separated. Figure 8 is a drawing showing a side cross-section of the "8" portion of Figure 7. Figure 9 is a drawing showing a side cross-section of the "9" portion of Figure 7. Figure 10 is an enlarged view of the "9" portion of Figure 7. FIG. 11 is a drawing showing a side cross-section of the "11" portion of FIG. 7. Figure 12 is a diagram schematically showing the discharge location of the main stream of hot air when the fan rotates in the forward direction. FIG. 13 is a drawing showing a side cross-section of the "13" portion of FIG. 12. FIG. 14 is a drawing showing a side cross-section of the "14" portion of FIG. 12. Figure 15 is a diagram schematically showing the discharge location of the main body of hot air when the fan rotates in the reverse direction. FIG. 16 is a drawing showing a side cross-section of the "16" portion of FIG. 15. FIG. 17 is a drawing showing a side cross-section of the "17" portion of FIG. 15. The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same referenc