Cooking appliance with cooling system

Abstract

The present disclosure provides a cooking appliance with a cooling system. The cooking appliance includes an oven; a stovetop, which is arranged on the upper side of the oven; an electrical component, which is arranged in the front surface of the stovetop; a first cooling duct, which is arranged between the top surface of the oven and the bottom surface of the stovetop to communicate with a first suction port in the front surface of the oven; a discharge duct, which is arranged in the rear surface of the stovetop and connected to the rear end of the first cooling duct; a second cooling duct, which is communicated with a second suction port on the front surface of the stovetop and is arranged in the stovetop; and an exhaust fan, which is arranged in a connection portion between the first cooling duct and the exhaust duct, wherein the second cooling duct is connected to the first cooling duct closer to the exhaust duct than the electrical component.

Description

Technical Field

[0001] The present disclosure relates to a cooking appliance, such as an oven range, and more particularly to a cooking appliance having a cooling system. Background Art

[0002] An oven range having an oven on its lower side and a cooktop on its upper side is widely used as a cooking appliance.

[0003] This oven cooker is equipped with Figure 1 The cooling system shown is used to prevent the outer surface of the oven from overheating due to the heat generated when the oven is in operation.

[0004] Reference Figure 1 , the conventional oven range 100 is provided with a cooling passage 106, which surrounds the cooking chamber 102 of the oven 101 for cooling the oven 101. In detail, the cooling passage 106 is provided along the inside of the door 104 and the top, rear and bottom surfaces of the cooking chamber 102 of the oven 101. The cooktop 110 is provided above the cooling passage 106 at the top of the oven 101. In addition, the cooling passage 106 is provided with a fan motor 107 capable of sucking external cold air into the cooling passage 106.

[0005] Therefore, when the fan motor 107 is operated, external cold air (arrow A) is sucked into the cooling passage 106 through the suction port 105 provided at the lower end of the door 104, passes through the inside of the door 104 and the top, rear and bottom surfaces of the cooking chamber 102, and is then discharged to the outside of the conventional oven range 100. In this way, the outer surface of the oven 101 is cooled by the external cold air traveling along the cooling passage 106 provided on the outer surface of the cooking chamber 102.

[0006] However, in the case of the conventional oven range 100, the cooktop 110 disposed at the upper side is not provided with a cooling system. Therefore, when cooking is performed by operating the cooktop 110, the temperature inside the cooktop 110 is increased by heat radiation of the burner 111.

[0007] Therefore, electronic components that are susceptible to high temperature damage, such as a processor, a display, etc., are usually not disposed in the cooktop 110 .

[0008] However, according to the user's request, it is necessary to provide electronic components such as a processor, a display, etc. in the stove 110 of the oven range 100. Therefore, it is necessary to cool the inside of the stove 110 so that the electrical components can be disposed in the stove 110 of the oven range 100.

[0009] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments. Summary of the invention

[0010] Technical issues

[0011] The present disclosure is provided to overcome the above-mentioned disadvantages and other problems associated with conventional arrangements. The present invention is directed to a cooking appliance having a cooling system capable of cooling the exterior of an oven and electrical components disposed within a cooktop.

[0012] Solution to the problem

[0013] According to one aspect of the present disclosure, a cooking appliance with a cooling system includes: an oven having a cooking chamber; a cooktop arranged on an upper side of the oven; a first electrical component arranged in a front surface of the cooktop; a first cooling duct arranged between a top surface of the oven and a bottom surface of the cooktop and configured to communicate with a first suction port formed in the front surface of the oven; a discharge duct arranged in a rear surface of the cooktop and connected to a rear end of the first cooling duct; a second cooling duct configured to communicate with a second suction port formed in the front surface of the cooktop above the first electrical component, the second cooling duct being arranged inside the cooktop; and an discharge fan arranged in a connection portion between the first cooling duct and the discharge duct and configured to draw in external air, wherein the second cooling duct may be connected to the first cooling duct at a position closer to the discharge duct than the first electrical component.

[0014] When the exhaust fan is operated, external air may be sucked into the second cooling duct through the second suction port, may cool the first electric component, and then may be discharged to the outside of the cooktop through the first cooling duct and the exhaust duct.

[0015] A bottom surface of the cooktop may be spaced apart from the first cooling duct, and a connecting duct may be provided between the second cooling duct and the first cooling duct to connect the first cooling duct and the second cooling duct perpendicularly to the bottom surface of the cooktop.

[0016] The cooking appliance with the cooling system may include a second electric component disposed on a bottom surface of the cooktop, wherein the second cooling duct may be connected to the first cooling duct between the second electric component and the exhaust duct.

[0017] The first electric component may be disposed at the center of the inner surface of the front surface of the cooktop, and the bottom surface of the cooktop may be provided with an accommodation portion in which the second electric component is disposed and an outlet through which air is discharged.

[0018] The first electrical component may include a display configured to display a status of the cooking appliance, and the second electrical component may include a printed circuit board on which a processor configured to control the cooking appliance is disposed.

[0019] The second cooling duct may be formed by a front surface, a rear surface, a top surface, a bottom surface, and both side surfaces of the cooktop, and the bottom surface of the cooktop may be provided with an outlet through which external air sucked into the second suction port is discharged.

[0020] A top surface of the first cooling pipe may be provided with a communication port communicating with the connection pipe.

[0021] The first cooling duct may include a first duct portion having a width gradually narrower than the first suction port and a second duct portion connected to the first duct portion, having a height gradually higher than the first duct portion and connected to the exhaust fan, and the second cooling duct may be connected to the second duct portion.

[0022] The cooking appliance with a cooling system may include a door configured to open and close a cooking chamber in a front surface of the oven; and a door air passage provided inside the door to communicate with the first cooling duct, wherein a lower end of the door air passage may be opened to the outside.

[0023] When the exhaust fan is operated, outside air is sucked into the first suction port of the first cooling duct, the second suction port of the second cooling duct, and the lower end of the door air duct. The outside air sucked into the first suction port may cool the top surface of the oven while passing through the first cooling duct and be discharged to the outside through the exhaust duct, the outside air sucked into the second suction port may cool the first electrical component, be introduced into the first cooling duct, and be discharged to the outside through the exhaust duct, and the outside air sucked into the lower end of the door air passage may cool the door, be introduced into the first cooling duct, and then be discharged to the outside through the exhaust duct.

[0024] According to one aspect of the present disclosure, a cooking appliance with a cooling system may include an oven having a cooking chamber therein; a cooktop arranged on an upper side of the oven; a first electrical component arranged in a front surface of the cooktop; a second electrical component arranged on a bottom surface of the cooktop; a first cooling duct arranged between a top surface of the oven and a bottom surface of the cooktop and configured to communicate with a first suction port formed in the front surface of the oven; a discharge duct arranged in a rear surface of the cooktop and connected to a rear end of the first cooling duct; a second cooling duct configured to communicate with a second suction port formed in the front surface of the cooktop above the first electrical component, the second cooling duct being arranged inside the cooktop; and an exhaust fan arranged in a connection portion between the first cooling duct and the exhaust duct, wherein the second cooling duct may be connected to the first cooling duct between the second electrical component and the exhaust duct.

[0025] Beneficial Effects of the Invention

[0026] The cooking appliance having the cooling system according to the embodiment of the present disclosure having the structure as described above may cool the inside of the cooktop through the cooling duct provided in the cooktop, so that the electric components may be provided inside the cooktop. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 It is a cross-sectional view of a traditional cooking utensil;

[0029] Figure 2 is a perspective view of a cooking appliance with a cooling system according to an embodiment of the present disclosure;

[0030] Figure 3 is a cross-sectional view of a cooking appliance with a cooling system according to an embodiment of the present disclosure;

[0031] Figure 4 It is shown Figure 2 A perspective view of the interior of a cooktop with a cooking appliance having a cooling system;

[0032] Figure 5 It is shown Figure 2 A perspective view of the interior of a cooktop with a cooking appliance having a cooling system;

[0033] Figure 6 It is shown Figure 2 A partial perspective view of a second suction port of a second cooling duct of a cooking appliance having a cooling system;

[0034] Figure 7 It is shown Figure 2 A perspective view of a first cooling duct and a discharge duct of a cooking appliance having a cooling system;

[0035] Figure 8 is to show the connection pipes and Figure 7 An exploded perspective view of a state where a first cooling pipe is separated;

[0036] Fig. 9 is a cross-sectional view showing airflow when an exhaust fan operates in a cooking appliance with a cooling system according to an embodiment of the present disclosure;

[0037] Fig.10 is a cross-sectional view showing a cooking appliance with a cooling system according to an embodiment of the present disclosure;

[0038] Fig.11 It is shown Fig.10 A perspective view of the interior of a cooktop with a cooking appliance having a cooling system;

[0039] Fig.12 It is shown Fig.10 A perspective view of the interior of a cooktop with a cooking appliance having a cooling system;

[0040] Fig.13 It is shown Fig.10 A perspective view of a first cooling duct and a discharge duct of a cooking appliance having a cooling system;

[0041] Fig.14 is shown when the exhaust fan is Fig.10 A cross-sectional view of airflow in a cooking appliance having a cooling system during operation; and

[0042] Fig.15 1 is a perspective view showing a state in which a duct member is provided inside a cooktop of a cooking appliance with a cooling system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0044] It should be understood that the present disclosure is not limited to the exemplary embodiments described below, but includes various modifications, equivalents and / or replacements of the examples of the present disclosure. With regard to the explanation of the accompanying drawings, similar reference numerals may be used for similar components. In addition, the sizes of various elements in the accompanying drawings may be increased or reduced arbitrarily to help a comprehensive understanding.

[0045] In the present disclosure, the terms "first", "second", etc. are used to describe various elements, regardless of their order and / or importance, and to distinguish one element from other elements, but are not limited to the corresponding elements. For example, a first user device and a second user device may indicate different user devices, regardless of their order or importance. For example, without departing from the scope of the present disclosure, a first element may be referred to as a second element, and in a similar manner, a second element may be referred to as a first element.

[0046] The terms used in the present disclosure are only used to describe various examples, rather than being intended to limit the scope of other examples. In the present disclosure, unless otherwise described, singular expressions may include plural expressions. All terms used in the present disclosure (including technical terms and scientific terms) can be used as those of ordinary skill in the art to which the present disclosure belongs are generally understood. The terms used in the present disclosure and defined in general dictionaries can be used as the meanings of the terms from the context of the relevant technology that are identical or similar, and they are not interpreted ideally or excessively unless they have been clearly and particularly defined. Even the words defined in the present disclosure cannot be interpreted as being mutually exclusive with all examples of the present disclosure.

[0047] Hereinafter, a cooking appliance with a cooling system according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0048] Figure 2 is a perspective view showing a cooking appliance having a cooling system according to an embodiment of the present disclosure. Figure 3 is a cross-sectional view illustrating a cooking appliance having a cooling system according to an embodiment of the present disclosure. Figure 4 It is shown Figure 2 A perspective view of the interior of a cooktop with a cooking appliance having a cooling system, and Figure 5 It is shown Figure 2 A rear perspective view of the interior of a cooktop with a cooking appliance cooling system. Figure 6 It is shown Figure 2 A partial perspective view of a second suction port of a second cooling duct of a cooking appliance with a cooling system. Figure 7 It is shown Figure 2 A perspective view of a first cooling duct and a discharge duct of a cooking appliance having a cooling system, and Figure 8 is to show the connection pipes and Figure 7 An exploded perspective view of a state where a first cooling pipe is separated.

[0049] Reference Figure 2 and Figure 3 , a cooking appliance 1 with a cooling system according to an embodiment of the present disclosure may include an oven 10 , a cooktop 20 , an electrical component 30 , and a cooling system 40 .

[0050] The oven 10 is formed in a substantially rectangular parallelepiped shape, and a cooking chamber 11 for accommodating food is provided in the oven 10. A heating source (not shown) configured to heat food is provided in the cooking chamber 11. A gas stove, an electric heater, etc. may be used as the heating source. The internal structure of the oven 10 is the same or similar to that of a gas oven, an electric oven, etc. of the prior art; therefore, a detailed description thereof is omitted.

[0051] A door 12 configured to open and close the cooking chamber 11 is provided at the front surface of the oven 10. The door 12 can be provided to rotate about 90 degrees by a hinge provided at a lower portion thereof. A door air passage 13 for passing outside air is provided inside the door 12. Openings 12a and 12b are provided at the upper and lower ends of the door 12, respectively, to allow air to be introduced into the door air passage 13. Therefore, the lower end of the door air passage 13 is open to the outside of the oven 10.

[0052] The cooktop 20 is disposed on the upper side of the oven 10 and is formed in a hollow substantially rectangular parallelepiped shape. For example, the cooktop 20 may include a front surface 21, a rear surface 22, a top surface 23, a bottom surface 24, and two side surfaces 25 and 26. For reference, Figure 3 and Figure 4The cooktop 20 is shown with the top surface 23 removed to show the interior of the cooktop 20 .

[0053] The top surface 23 of the stove 20 is provided with a plurality of heat sources 50 capable of heating containers containing food. Figure 2 and Figure 3 In the case of the illustrated embodiment, six gas stoves are used as the heat source 50. However, the heat source 50 of the cooktop 20 is not limited to the gas stove. In addition to the gas stove, an electromagnetic induction heater, an electric heater, etc. can be used as the heat source 50. In other words, an induction cooktop, a highlight cooktop, and a hybrid cooktop can be used as the cooktop 20.

[0054] The front surface 21 of the cooktop 20 is provided with a plurality of rotary switches 51, which can control a plurality of heat sources 50 of the cooktop 20 and the oven 10. In addition, an electrical component 30 for controlling the cooktop 20 and the oven 10 may be provided in the front surface 21 of the cooktop 20. The electrical component 30 may be provided substantially in the center of the front surface 21 of the cooktop 20. For example, a display configured to display the status of the cooktop 20 and the oven 10 may be provided as the electrical component 30. Alternatively, the electrical component 30 may include a display and a printed circuit board on which a processor configured to control the cooktop and the oven is provided. In this case, as shown in FIG. Figure 6 As shown, the front surface of the display is exposed to the outside through an opening 21 a provided in the front surface 21 of the cooktop 20 .

[0055] The cooling system 40 is provided to cool the outer surface of the oven 10 and the electric components 30 of the cooktop 20 by using a single exhaust fan 41 , and may include a first cooling duct 60 , a second cooling duct 70 , and an exhaust duct 80 .

[0056] like Figure 3 and Figure 7 As shown, the first cooling duct 60 is provided on the top surface 14 of the oven 10 to cool the top surface 14 of the oven 10. In other words, the first cooling duct 60 is provided between the top surface 14 of the oven 10 and the bottom surface 24 of the cooktop 20. Therefore, the bottom surface 24 of the cooktop 20 is spaced apart from the top surface 14 of the oven 10 by a predetermined distance.

[0057] The first cooling duct 60 may be formed in a channel shape without a bottom so that the sucked air may directly contact the top surface 14 of the oven 10. One end of the first cooling duct 60 is connected to the first suction port 18 provided on the front surface 15 of the oven 10.

[0058] like Figure 7As shown, the first suction port 18 may be provided as a plurality of slits at the upper portion of the front surface 15 of the oven 10. Therefore, external air may be introduced into the first cooling duct 60 through the first suction port 18. Since the door 12 is provided on the front surface 15 of the oven 10, the first suction port 18 is not exposed to the outside when the door 12 is closed. However, since there is a gap between the door 12 of the oven 10 and the bottom surface 24 of the cooktop 20, external air may be introduced into the first suction port 18 through the space between the door 12 and the bottom surface 24 of the cooktop 20.

[0059] The first cooling duct 60 may include a first duct portion 61 connected to the first suction port 18 and a second duct portion 62 connected to the first duct portion 61. The first duct portion 61 may be formed so that its width is gradually narrower than the first suction port 18 in the advancing direction of the inhaled external air. For example, the width of one end of the first duct portion 61 connected to the first suction port 18 is wider than the width of the other end of the first duct portion 61 connected to the second duct portion 62. In addition, the first duct portion 61 is formed in a shape in which the height of the first duct portion 61 gradually increases along the advancing direction of the external air. For example, the height of one end of the first duct portion 61 connected to the first suction port 18 is lower than the height of the other end of the first duct portion 61 connected to the second duct portion 62. However, although not shown, the first duct portion 61 may be formed to have the same height over the entire length.

[0060] One end of the second duct portion 62 is connected to the first duct portion 61, and the other end of the second duct portion 62 is connected to a connection portion in which the exhaust fan 41 is provided. The second duct portion 62 is formed to have a height gradually increasing than the first duct portion 61 in the advancing direction of the outside air. In detail, the height of one end of the second duct portion 62 is the same as that of the first duct portion 61, and the height of the other end of the second duct portion 62 connected to the exhaust fan 41 is higher than that of the first duct portion 61. The width of the second duct portion 62 is equal to the width of the other end of the first duct portion 61.

[0061] The exhaust duct 80 is provided on the rear surface 22 of the cooktop 20 and is connected to the rear end of the first cooling duct 60. The exhaust duct 80 is provided in a direction perpendicular to the bottom surface 24 of the cooktop 20, that is, in a direction perpendicular to the first cooling duct 60. A exhaust port 81 communicating with the exhaust duct 80 is provided in the top surface 23 of the cooktop 20. Therefore, the outside air passing through the first cooling duct 60 is exhausted to the outside of the cooking appliance 1 through the exhaust duct 80.

[0062] The exhaust fan 41 is provided in the connection portion 63 between the first cooling duct 60 and the exhaust duct 80. The exhaust fan 41 is provided inside the connection portion 63 connecting the rear end of the first cooling duct 60 and one end of the exhaust duct 80, and is configured to generate a suction force for sucking the outside air into the first cooling duct 60. The outside air sucked by the exhaust fan 41 is discharged to the outside through the exhaust duct 80 through the exhaust fan 41. Various types of fans may be used as the exhaust fan 41 as long as they can generate a suction force for sucking the outside air.

[0063] Two oven exhaust ducts 90 communicating with the cooking chamber 11 of the oven 10 may be provided on the left and right sides of the first cooling duct 60 and the exhaust duct 80. In detail, one end of the oven exhaust duct 90 communicates with the upper portion of the cooking chamber 11 of the oven 10, and the other end of the oven exhaust duct 90 communicates with an oven outlet 91 provided at the rear of the top surface 23 of the cooktop 20 (i.e., near the rear surface 22 of the cooktop 20). Therefore, steam generated when cooking food with the oven 10 is exhausted to the outside of the cooking appliance 1 through the two oven exhaust ducts 90.

[0064] The second cooling duct 70 is provided in the cooktop 20 to cool the electric components 30 provided in the cooktop 20. For example, the second cooling duct 70 is formed such that the outside air is sucked through the front surface 21 of the cooktop 20, passes through the electric components 30 in the cooktop 20, and then is discharged to the first cooling duct 60. The front surface 21 of the cooktop 20 is provided with a second suction port 28, and the outside air is sucked into the second cooling duct 70 through the second suction port 28. The second suction port 28 may be provided in the front surface 21 of the cooktop 20 above the electric components 30. The second cooling duct 70 is connected to the first cooling duct 60 at the rear of the electric components 30. In other words, the outlet 71 of the second cooling duct 70 may be provided at the rear of the electric components 30 based on the moving direction of the air. For example, the outlet 71 of the second cooling duct 70 may be provided to be connected to the first cooling duct 60 at a position closer to the discharge duct 80 than the electric components 30. Therefore, the electric components 30 provided in the cooktop 20 may be cooled by using the outside air sucked by the discharge fan 41 provided in the first cooling duct 60.

[0065] In this embodiment, if Figure 3 As shown, the cooktop 20 itself forms the second cooling duct 70. In detail, the front surface 21, the rear surface 22, the top surface 23, the bottom surface 24 and the two side surfaces 25 and 26 of the cooktop 20 form the second cooling duct 70. The front surface 21 of the cooktop 20 is provided with a second suction port 28, and the external air is sucked into the second cooling duct 70 through the second suction port 28.

[0066] like Figure 6As shown, the second suction port 28 may be provided in the lower surface of the protruding portion 27 protruding from the front surface 21 of the cooktop 20 above the plurality of rotary switches 51. The second suction port 28 may include a plurality of slits and a plurality of rectangular holes formed on the lower surface of the protruding portion 27. Since the inside of the protruding portion 27 of the cooktop 20 is empty, external air may be introduced into the inside of the cooktop 20, that is, the second cooling duct 70, through the second suction port 28.

[0067] The bottom surface 24 of the cooktop 20 is provided with an outlet 71 through which the outside air sucked into the second suction port 28 is discharged. In other words, the outlet 71 of the second cooling duct 70 is formed in the bottom surface 24 of the cooktop 20. In this embodiment, the outlet 71 of the second cooling duct 70 is formed as two square or rectangular holes. Figure 4 In the illustrated embodiment, the outlet 71 of the second cooling duct 70 is formed as two rectangular holes. However, the shape of the outlet 71 is not limited thereto. Although not shown, the outlet 71 of the second cooling duct 70 may be formed in various shapes, such as rectangular holes, circular holes, elliptical holes, etc.

[0068] In the present embodiment, because the bottom surface 24 of the cooktop 20 is spaced apart from the top surface of the first cooling duct 60 , a connection duct 75 is provided between the outlet 71 of the second cooling duct 70 and the top surface of the first cooling duct 60 .

[0069] The connecting duct 75 is formed to connect the first cooling duct 60 and the second cooling duct 70. In other words, the connecting duct 75 is disposed between the first cooling duct 60 and the second cooling duct 70 perpendicular to the bottom surface 24 of the cooktop 20 to connect the first cooling duct 60 and the second cooling duct 70. In detail, the connecting duct 75 is formed to connect the outlet 71 of the second cooling duct 70 and the communication port 65 of the first cooling duct 60. For example, Figure 7 and 8 As shown, the connection duct 75 may be formed as a rectangular duct having a size corresponding to two rectangular holes forming the outlet 71 of the second cooling duct 70. A partition 76 may be provided at the center of the rectangular connection duct 75 to divide the interior of the connection duct 75 into two spaces in the longitudinal direction.

[0070] The communication port 65 communicating with the connection pipe 75 is provided in the top surface of the first cooling pipe 60. Therefore, one end of the connection pipe 75 is connected to the outlet 71 of the bottom surface 24 of the cooktop 20, and the other end of the connection pipe 75 is connected to the communication port 65 of the first cooling pipe 60. The communication port 65 of the first cooling pipe 60 may be formed in a plurality of holes 64 in an area corresponding to the cross section of the connection pipe 75. In this embodiment, as shown in FIG. Figure 8 As shown, the communication ports 65 of the first cooling duct 60 are formed in six elongated holes 64 .

[0071] Therefore, the external air introduced into the second suction port 28 provided on the front surface 21 of the cooktop 20 passes through the electric components 30 provided inside the cooktop 20 and then enters the communication port 65 of the first cooling duct 60 through the outlet 71 on the bottom surface 24 of the cooktop 20 and the connecting duct 75.

[0072] In the following, reference will be made to Fig. 9 A cooling operation of the cooking appliance 1 with a cooling system according to an embodiment of the present disclosure is described in detail.

[0073] Fig. 9 is a cross-sectional view illustrating air flow when an exhaust fan operates in a cooking appliance with a cooling system according to an embodiment of the present disclosure.

[0074] When food is cooked by at least one of the cooktop 20 and the oven 10, the exhaust fan 41 provided in the connection portion 63 between the first cooling duct 60 and the exhaust duct 80 operates.

[0075] When the exhaust fan 41 operates, external cold air is introduced into the cooling system 40 through the first suction port 18 provided in the front surface 15 of the oven 10, the second suction port 28 provided in the front surface 21 of the cooktop 20, and the opening 12a provided at the lower end of the door 12.

[0076] The external air (arrow B1) introduced into the first suction port 18 provided in the front surface 15 of the oven 10 passes through the first cooling duct 60, passes through the exhaust fan 41 provided in the connection portion 63, and is then discharged to the outside of the cooking appliance 1 through the exhaust duct 80. At this time, since the first cooling duct 60 is arranged on the top surface 14 of the oven 10, when the external cold air passes through the first cooling duct 60, the top surface 14 of the oven 10 is cooled.

[0077] The outside air (arrow B2) introduced into the second suction port 28 provided in the front surface 21 of the cooktop 20 passes through the second cooling duct 70, i.e., the inside of the cooktop 20, and then is discharged through the outlet 71 provided on the bottom surface 24 of the cooktop 20. The outside air discharged through the outlet 71 is introduced into the communication port 65 of the first cooling duct 60 through the connection duct 75 connecting the first cooling duct 60 and the second cooling duct 70.

[0078] The external air introduced into the communication port 65 of the first cooling duct 60 is discharged to the outside of the cooktop 20 through the first cooling duct 60 and the exhaust duct 80. In detail, the external air introduced into the first cooling duct 60 through the connection duct 75 is mixed with the external air introduced into the first suction port 18, and the mixed air passes through the exhaust fan 41 and then is discharged to the outside of the cooking appliance 1 through the exhaust duct 80. At this time, when the external cold air sucked into the second suction port 28 passes through the electric components 30 provided in the cooktop 20, the electric components 30 are cooled. Therefore, the electric components 30 can be prevented from being heated to a predetermined temperature or more due to the radiant heat of the heat source 50 generated when cooking with the cooktop 20 or due to the conductive heat of the oven 10 generated when cooking with the oven 10.

[0079] The outside air (arrow B3) sucked into the opening 12a provided at the lower end of the door 12 passes through the door air passage 13 of the door 12 and moves to the upper end of the door 12. The outside air moved to the upper end of the door 12 is introduced into the first cooling duct 60 through the first suction port 18 provided at the front surface 15 of the oven 10. The outside air introduced into the first cooling duct 60 is discharged to the outside of the cooking appliance 1 through the exhaust fan 41 and the exhaust duct 80.

[0080] Since the rear surface 16 of the oven 10 is directly exposed to the outside, the rear surface 16 of the oven 10 can be cooled by direct contact with the outside air. In other words, the rear surface 16 of the oven 10 can be cooled by natural convection of the air.

[0081] As described above, the cooking appliance 1 with a cooling system according to an embodiment of the present disclosure includes the second cooling duct 70 capable of cooling the electric components 30 in the cooktop 20. Therefore, when cooking food with the cooking appliance 1, the electric components 30 disposed in the cooktop 20 can be prevented from rising above a predetermined temperature.

[0082] The inventors confirmed that, in a cooking appliance in which the second cooling duct is not provided in the cooktop, the temperature of the electrical components in the cooktop rises to 90° C. or higher when cooking food, so that the cooking appliance does not meet the specified temperature of 80° C. However, in the cooking appliance 1 with a cooling system according to an embodiment of the present disclosure, the electrical components 30 provided in the cooktop 20 rise to about 55° C. when cooking food, so that the cooking appliance 1 meets the specified temperature.

[0083] In the following, reference will be made to Figures 10 to 13 A cooking appliance with a cooling system according to an embodiment of the present disclosure is described in detail.

[0084] Fig.10 A cross-sectional view illustrating a cooking appliance having a cooling system according to an embodiment of the present disclosure. Fig.11 It is shown Fig.10A perspective view of the interior of a cooktop with a cooking appliance having a cooling system. Fig.12 It is shown Fig.10 A rear perspective view of the interior of a cooktop with a cooking appliance cooling system. Fig.13 It is shown Fig.10 A perspective view of a first cooling duct and a discharge duct of a cooking appliance with a cooling system.

[0085] Reference Fig.10 and Fig.11 The cooking appliance 2 with a cooling system according to an embodiment of the present disclosure may include an oven 10 , a cooktop 20 ′, a first electrical component 31 , a second electrical component 32 , and a cooling system 40 .

[0086] The oven 10 is formed in a substantially rectangular parallelepiped shape, and a cooking chamber 11 for accommodating food is provided inside the oven 10. A heat source (not shown) configured to heat food is provided in the cooking chamber 11. A gas stove, an electric heater, etc. may be used as the heat source. The internal structure of the oven 10 is the same as or similar to that of a gas oven, an electric oven, etc. in the related art; therefore, a detailed description thereof is omitted.

[0087] A door 12 configured to open and close the cooking chamber 11 is provided in the front surface 15 of the oven 10. The door 12 can be provided to rotate about 90 degrees by a hinge provided at a lower portion thereof. A door air passage 13 for passing outside air is provided in the door 12. Openings 12a are provided at the upper and lower ends of the door 12 to allow air to be introduced into the door air passage 13. Therefore, the lower end of the door air passage 13 is open to the outside.

[0088] The cooktop 20' is disposed on the upper side of the oven 10 and is formed in a hollow substantially rectangular parallelepiped shape. For example, the cooktop 20' may include a front surface 21, a rear surface 22, a top surface 23, a bottom surface 24, and two side surfaces 25 and 26. For reference, Fig.11 and Fig.12 A cooktop 20' is shown with a top surface 23 of the cooktop 20' removed to show the interior of the cooktop 20'.

[0089] The top surface 23 of the stove 20' is provided with a plurality of heat sources 50 capable of heating a container for holding food. In the case of the present embodiment, a plurality of gas stoves are used as the heat sources 50. However, the heat sources 50 of the stove 20' are not limited to the gas stoves. In addition to the gas stoves, electromagnetic induction heaters, electric heaters, etc. may be used as the heat sources 50. In other words, an induction stove, an open flame stove, and a hybrid stove may be used as the stove 20'.

[0090] A front surface 21 of the cooktop 20 ′ is provided with a plurality of rotary switches 51 , which can control the cooktop 20 ′ and a plurality of heat sources 50 of the oven 10 .

[0091] The first electrical component 31 and the second electrical component 32 may be disposed within the cooktop 20'. The first electrical component 31 may be disposed in the inner surface of the front surface 21 of the cooktop 20', and the second electrical component 32 may be disposed on the bottom surface 24 of the cooktop 20'. In detail, the first electrical component 31 may be disposed centrally in the longitudinal direction on the inner surface of the front surface 21 of the cooktop 20'. For example, the first electrical component 31 may be implemented as a display configured to display the status of the cooktop 20' and the oven 10. At this time, the front surface of the display may be exposed to the outside through the opening 21a disposed in the front surface 21 of the cooktop 20' (see Figure 6 ).

[0092] The second electrical component 32 may be disposed in the receiving portion 29 formed in the bottom surface 24 of the cooktop 20'. The receiving portion 29 may be formed as a rectangular groove lower than the bottom surface 24 of the cooktop 20'. The second electrical component 32 is disposed on the bottom surface of the receiving portion 29. Fig.11 and Fig.12 In the case of the present embodiment shown, the second electrical component 32 is disposed in the recessed accommodation portion 29; however, the installation position of the second electrical component 32 is not limited thereto. Although not shown, the second electrical component 32 may be disposed on the bottom surface 24 of the cooktop 20' without the recessed accommodation portion 29. The second electrical component 32 may include various electrical components associated with the cooking appliance 2. For example, the second electrical component 32 may be implemented as a printed circuit board on which a processor for controlling the cooktop 20' and the oven 10 is provided.

[0093] The cooling system 40 is configured to cool the outer surface of the oven 10 and the first and second electrical components 31 and 32 disposed in the cooktop 20 ′ by using a single exhaust fan 41 , and may include a first cooling duct 60 , a second cooling duct 70 , and an exhaust duct 80 .

[0094] like Fig.10 and Fig.13 As shown, the first cooling duct 60 is provided on the top surface 14 of the oven 10 to cool the top surface 14 of the oven 10. In other words, the first cooling duct 60 is provided between the top surface 14 of the oven 10 and the bottom surface 24 of the cooktop 20'. Therefore, the bottom surface 24 of the cooktop 20' is spaced apart from the top surface 14 of the oven 10 by a predetermined distance. In addition, the receiving portion 29 provided on the bottom surface 24 of the cooktop 20' is formed so as not to interfere with the first cooling duct 60.

[0095] The first cooling duct 60 may be formed in a channel shape without a bottom so that the sucked air may directly contact the top surface 14 of the oven 10. One end of the first cooling duct 60 is connected to the first suction port 18 provided on the front surface 15 of the oven 10.

[0096] like Fig.13 As shown, the first suction port 18 may be provided as a plurality of slits at the upper portion of the front surface 15 of the oven 10. Therefore, external air may be introduced into the first cooling duct 60 through the first suction port 18. Since the door 12 is provided on the front surface 15 of the oven 10, the first suction port 18 is not exposed to the outside when the door 12 is closed. However, since there is a gap between the upper end of the door 12 and the bottom surface 24 of the cooktop 20', external air may be introduced into the first suction port 18 through the space between the upper end of the door 12 and the bottom surface 24 of the cooktop 20'.

[0097] The first cooling duct 60 may include a first duct portion 61 connected to the first suction port 18 and a second duct portion 62 connected to the first duct portion 61. The first duct portion 61 may be formed such that the width of the first cooling duct 60 is gradually smaller than the width of the first suction port 18 in the advancing direction of the sucked outside air. Fig.13 As shown, the width of one end of the first duct portion 61 connected to the first suction port 18 is wider than the width of the other end of the first duct portion 61 connected to the second duct portion 62. In addition, the first duct portion 61 may be formed in a shape in which the height gradually increases along the advancing direction of the external air. Fig.10 As shown, the height of one end of the first duct portion 61 connected to the first suction port 18 is lower than the height of the other end of the first duct portion 61 connected to the second duct portion 62. However, although not shown, the first duct portion 61 may be formed to have the same height over the entire length.

[0098] One end of the second duct portion 62 is connected to the first duct portion 61, and the other end of the second duct portion 62 is connected to the connection portion 63, and the exhaust fan 41 is provided in the connection portion 63. The second duct portion 62 is formed in such a shape that its height gradually increases in the advancing direction of the outside air than the height of the first duct portion 61. In detail, as Fig.10 As shown, the height of one end of the second duct part 62 is the same as that of the first duct part 61, and the height of the other end of the second duct part 62 connected to the exhaust fan 41 is higher than the height of the first duct part 61. The width of the second duct part 62 is formed to be equal to the width of the other end of the first duct part 61.

[0099] The exhaust duct 80 is provided on the rear surface 22 of the cooktop 20' and is connected to the rear end of the first cooling duct 60. The exhaust duct 80 is provided in a direction perpendicular to the bottom surface 24 of the cooktop 20', that is, in a direction perpendicular to the first cooling duct 60. An exhaust port 81 communicating with the exhaust duct 80 is provided in the top surface 23 of the cooktop 20'. Therefore, the outside air passing through the first cooling duct 60 is exhausted to the outside of the cooking appliance 2 through the exhaust duct 80.

[0100] The exhaust fan 41 is provided in the connection portion 63 between the first cooling duct 60 and the exhaust duct 80. The exhaust fan 41 is provided in the connection portion 63 connecting the rear end of the first cooling duct 60 and one end of the exhaust duct 80. The exhaust fan 41 is configured to generate suction force to draw external air into the first cooling duct 60. The external air drawn in by the exhaust fan 41 passes through the exhaust fan 41 and is discharged to the outside through the exhaust duct 80. Various types of fans may be used as the exhaust fan 41 as long as they can generate suction force for drawing in external air.

[0101] like Fig.13 As shown, two oven exhaust ducts 90 communicating with the cooking chamber 11 of the oven 10 may be provided on the left and right sides of the first cooling duct 60 and the exhaust duct 80. In detail, one end of the oven exhaust duct 90 communicates with the upper portion of the cooking chamber 11 of the oven 10, and the other end of the oven exhaust duct 90 communicates with an oven outlet 91 provided at the rear of the top surface of the cooktop 20 (i.e., near the rear surface 22 of the cooktop 20). Therefore, steam generated when cooking food with the oven 10 is exhausted to the outside of the cooking appliance 2 through the two oven exhaust ducts 90.

[0102] The second cooling duct 70 is provided in the cooktop 20' to cool the first and second electrical components 31 and 32 provided in the cooktop 20'. For example, the second cooling duct 70 is formed so that the outside air is sucked through the front surface 21 of the cooktop 20', passes through the first and second electrical components 31 and 32 in the cooktop 20', and then is discharged into the first cooling duct 60.

[0103] The front surface 21 of the cooktop 20' is provided with a second suction port 28 through which external air is sucked into the second cooling duct 70. The second suction port 28 may be provided in the front surface 21 of the cooktop 20' above the first electrical component 31.

[0104] Based on the moving direction of air, the second cooling duct 70 is connected to the first cooling duct 60 at the rear of the second electrical component 32. In other words, the outlet 71 of the second cooling duct 70 may be disposed behind the second electrical component 32. For example, the outlet 71 of the second cooling duct 70 may be disposed at a position closer to the exhaust duct 80 than the first electrical component 31, that is, connected to the first cooling duct 60 at the rear of the second electrical component 32. Fig.11 In the case of the present embodiment shown, the outlet 71 of the second cooling duct 70 is disposed behind the accommodation portion 29 accommodating the second electric component 32. In other words, the outlet 71 of the second cooling duct 70 may be disposed in the bottom surface 24 of the cooktop 20', between the accommodation portion 29 and the rear surface 22 of the cooktop 20'. Therefore, the external air introduced into the second cooling duct 70 through the second suction port 28 cools the first electric component 31 and the second electric component 32 disposed in the cooktop 20', and then is discharged into the first cooling duct 60 through the outlet 71.

[0105] In this embodiment, if Fig.11 As shown, the cooktop 20' itself forms the second cooling duct 70. In detail, the front surface 21, the rear surface 22, the top surface 23, the bottom surface 24 and the two side surfaces 25 and 26 of the cooktop 20' form the second cooling duct 70. The front surface 21 of the cooktop 20' is provided with a second suction port 28, and the external air is sucked into the cooktop 20' forming the second cooling duct 70 through the second suction port 28.

[0106] The second suction port 28 may be provided on the lower surface of the protruding portion 27 protruding from the front surface 21 of the stove top 20' above the plurality of rotary switches 51 (see Figure 6 The second suction port 28 may include a plurality of slits and a plurality of rectangular holes formed on the lower surface of the protruding portion 27. Since the inside of the protruding portion 27 of the cooktop 20' is empty, external air may be introduced into the inside of the cooktop 20', ie, the second cooling duct 70, through the second suction port 28.

[0107] The bottom surface 24 of the cooktop 20' is provided with an outlet 71, through which the outside air sucked into the second suction port 28 is discharged. In other words, the outlet 71 of the second cooling duct 70 is formed on the bottom surface 24 of the cooktop 20'. In the present embodiment, the outlet 71 of the second cooling duct 70 is formed as two square or rectangular holes between the accommodating portion 29 and the rear surface 22 of the cooktop 20'. In the present embodiment, the outlet 71 of the second cooling duct 70 is formed as two rectangular holes; however, the shape of the outlet 71 is not limited thereto. Although not shown, the outlet 71 of the second cooling duct 70 may be formed in various shapes, such as a rectangular hole, a circular hole, an elliptical hole, etc.

[0108] In the present embodiment, since the bottom surface 24 of the cooktop 20' provided with the accommodating portion 29 is spaced apart from the top surface of the first cooling duct 60, a connecting duct 75 is provided between the outlet 71 of the second cooling duct 70 and the top surface of the first cooling duct 60, wherein the second electrical component 32 is provided in the accommodating portion 29.

[0109] The connecting pipe 75 is formed to connect the first cooling pipe 60 and the second cooling pipe 70. In other words, the connecting pipe 75 is disposed between the first cooling pipe 60 and the second cooling pipe 70 perpendicular to the bottom surface 24 of the cooktop 20' to connect the first cooling pipe 60 and the second cooling pipe 70. In detail, the connecting pipe 75 is formed to connect the outlet 71 of the second cooling pipe 70 and the communication port 65 of the first cooling pipe 60. For example, Fig.13 As shown, the connection duct 75 may be formed as a rectangular duct having a cross section corresponding to two rectangular holes provided in the bottom surface 24 of the cooktop 20' forming the outlet 71 of the second cooling duct 70. A partition 76 may be provided at the center of the rectangular connection duct 75 to divide the interior of the connection duct 75 into two spaces in the longitudinal direction.

[0110] The communication port 65 communicating with the connection pipe 75 is provided in the top surface of the first cooling pipe 60. Therefore, one end of the connection pipe 75 is connected to the outlet 71 of the bottom surface 24 of the cooktop 20', and the other end of the connection pipe 75 is connected to the communication port 65 of the first cooling pipe 60. The communication port 65 of the first cooling pipe 60 may be formed as a plurality of holes located in an area corresponding to the cross section of the connection pipe 75. In the present embodiment, the communication port 65 of the first cooling pipe 60 may be formed as six elongated holes (see Figure 8 ).

[0111] Therefore, the outside air introduced into the second suction port 28 provided on the front surface 21 of the cooktop 20' passes through the first electric component 31 and the second electric component 32 provided inside the cooktop 20', and then is introduced into the communication port 65 of the first cooling duct 60 through the outlet 71 and the connecting duct 75 in the bottom surface 24 of the cooktop 20'.

[0112] In the following, reference will be made to Fig.14 A cooling operation of the cooking appliance 2 with a cooling system according to an embodiment of the present disclosure is described in detail.

[0113] Fig.14 is a cross-sectional view illustrating air flow when an exhaust fan operates in a cooking appliance with a cooling system according to an embodiment of the present disclosure.

[0114] When food is cooked by at least one of the cooktop 20' and the oven 10, the exhaust fan 41 provided in the connection portion 63 between the first cooling duct 60 and the exhaust duct 80 operates.

[0115] When exhaust fan 41 operates, external cold air is introduced into cooling system 40 through first suction port 18 provided in front surface 15 of oven 10, second suction port 28 provided in front surface 21 of cooktop 20' and opening 12a provided at the lower end of door 12.

[0116] The external air (arrow C1) introduced into the first suction port 18 provided in the front surface 15 of the oven 10 passes through the first cooling duct 60, passes through the exhaust fan 41 provided in the connection portion 63, and is then discharged to the outside of the cooking appliance 2 through the exhaust duct 80. At this time, since the first cooling duct 60 is arranged on the top surface 14 of the oven 10, when the external cold air passes through the first cooling duct 60, the top surface 14 of the oven 10 is cooled by the external air.

[0117] The external air (arrow C2) introduced into the second suction port 28 provided in the front surface 21 of the cooktop 20' passes through the second cooling duct 70, that is, the inside of the cooktop 20', and then is discharged through the outlet 71 provided in the bottom surface 24 of the cooktop 20'. The external air discharged through the outlet 71 is introduced into the communication port 65 of the first cooling duct 60 through the connection duct 75 connecting the first cooling duct 60 and the second cooling duct 70. The external air introduced into the communication port 65 of the first cooling duct 60 is discharged to the outside of the cooktop 20' through the exhaust fan 41 and the exhaust duct 80. In detail, the external air introduced into the first cooling duct 60 through the connection duct 75 is mixed with the external air introduced into the first suction port 18, and the mixed external air passes through the exhaust fan 41 and then is discharged to the outside of the cooking appliance 2 through the exhaust duct 80.

[0118] At this time, when the external cold air sucked into the second suction port 28 passes through the first electric component 31 and the second electric component 32 provided in the cooktop 20', the first electric component 31 and the second electric component 32 are cooled. Therefore, the first electric component 31 and the second electric component 32 are prevented from being heated to a temperature exceeding a predetermined temperature by the radiant heat of the burner generated when cooking with the cooktop 20' or the conductive heat of the oven 10 generated when cooking with the oven 10.

[0119] The outside air (arrow C3) sucked into the opening 12a provided at the lower end of the door 12 passes through the door air passage 13 of the door 12 and moves to the upper end of the door 12. The outside air moved to the upper end of the door 12 is introduced into the first cooling duct 60 through the first suction port 18 provided in the front surface 15 of the oven 10. The outside air introduced into the first cooling duct 60 is discharged to the outside of the cooking appliance 2 through the exhaust fan 41 and the exhaust duct 80.

[0120] Since the rear surface 16 of the oven 10 is directly exposed to the outside, the rear surface 16 of the oven 10 can be cooled by direct contact with the outside air. In other words, the rear surface 16 of the oven 10 can be cooled by natural convection of the air.

[0121] As described above, the cooking appliance 2 with a cooling system according to an embodiment of the present disclosure has the second cooling duct 70 capable of cooling the first electrical component 31 and the second electrical component 32 in the cooktop 20'. Therefore, when cooking food with the cooking appliance 2, the first and second electrical components 31 and 32 disposed in the cooktop 20' can be prevented from rising above a predetermined temperature.

[0122] In the above description, the cooktops 20 and 20' themselves serve as the second cooling duct 70. However, the structure of the second cooling duct 70 is not limited thereto. As an embodiment, the second cooling duct 70 may be formed by providing a duct member 77 in the cooktop 20'.

[0123] Fig.15 1 is a perspective view showing a situation in which a duct member is provided inside a cooktop of a cooking appliance with a cooling system according to an embodiment of the present disclosure.

[0124] Reference Fig.15 The cooking appliance 3 with a cooling system according to an embodiment of the present disclosure may include an oven 10 , a cooktop 20 ′, and a cooling system 40 .

[0125] The oven 10 of the cooking appliance 3 is the same as the oven 10 of the cooking appliance 2; therefore, a detailed description thereof is omitted.

[0126] The cooktop 20 ′ and the cooling system 40 are similar to the cooktop 20 ′ and the cooling system 40 of the cooking appliance 2 according to the above-described embodiment; therefore, the following description will focus on the differences.

[0127] A duct member 77 is provided on the bottom surface 24 of the cooktop 20' to form the second cooling duct 70. The duct member 77 is formed to cover the first electric component 31 provided on the front surface 21 of the cooktop 20' and the second electric component 32 provided on the bottom surface 24 of the cooktop 20'. The duct member 77 is formed so that one end of the duct member 77 communicates with the second suction port 28 formed in the front surface 21 of the cooktop 20', and the other end of the duct member 77 communicates with the outlet 71 formed in the bottom surface 24 of the cooktop 20'.

[0128] The duct member 77 may be formed so that the height of the duct member 77 gradually decreases along the advancing direction of the outside air. For example, the top surface of the duct member 77 may be arranged to be inclined downward along the advancing direction of the outside air. Therefore, the duct member 77 may be formed so that the height of one end of the duct member 77 connected to the second suction port 28 is higher than the height of the other end of the duct member 77 connected to the outlet 71.

[0129] In addition, the duct member 77 may be formed so that the width of the duct member 77 gradually narrows in the moving direction of the outside air. For example, the width of one end of the duct member 77 connected to the second suction port 28 may be wider than the width of the other end of the duct member 77 communicating with the outlet 71.

[0130] The duct member 77 is formed in a channel shape without a bottom. Therefore, the external air introduced into the second suction port 28 moves along the duct member 77, directly contacts the first electric component 31 and the second electric component 32, and then is discharged into the first cooling duct 60 through the outlet 71 formed in the bottom surface 24 of the cooktop 20'. In detail, the external air discharged through the outlet 71 of the cooktop 20' is introduced into the communication port 65 of the first cooling duct 60 through the connecting duct 75. Thereafter, the external air introduced into the communication port 65 is mixed with the external air introduced into the first cooling duct 60 through the first suction port 18, and then the mixed external air is discharged to the outside of the cooking appliance 3 through the exhaust fan 41 and the exhaust duct 80.

[0131] In the cooking appliances 1, 2 and 3 having the cooling system as described above, the outside of the oven 10 can be cooled by the outside air flowing through the first cooling duct 60, and the electrical components 30, 31 and 32 arranged inside the cooktops 20 and 20' can be cooled by the outside air flowing through the second cooling duct 70.

[0132] Although the embodiments of the present disclosure have been described, once those skilled in the art understand the basic inventive concept, additional changes and modifications may be made to the embodiments of the present invention. Therefore, the appended claims should be interpreted as including the above-mentioned embodiments and all such changes and modifications that fall within the spirit and scope of the inventive concept.

Claims

1. A cooking appliance with a cooling system, the cooking appliance comprising: An oven having a cooking chamber; A stove, arranged above the oven; a first electrical component disposed in the front surface of the cooktop; a first suction port disposed in an upper portion of a front surface of the oven below the first electrical component; a second suction port disposed in the front surface of the cooktop above the first electrical component; a first cooling duct, disposed between the top surface of the oven and the bottom surface of the cooktop, wherein the front end of the first cooling duct is communicated with the first suction port, and a communication port is disposed on the top surface of the first cooling duct; a discharge port disposed in a rear portion of a top surface of the cooktop and configured to communicate with a rear end of the first cooling duct; a second cooling duct configured to communicate with the first electrical component, disposed in the cooktop above the first cooling duct, and comprising a front end and an outlet, the front end of the second cooling duct being configured to communicate with the second suction port, the outlet being formed on the bottom surface of the cooktop at a position behind the first electrical component, wherein the bottom surface of the cooktop is spaced apart from the first cooling duct, and a connecting duct is disposed between the bottom surface of the cooktop and the top surface of the first cooling duct to connect the outlet of the second cooling duct to the communicating port of the first cooling duct; as well as The exhaust fan is configured to draw air into the first suction port and pass through the first cooling duct, draw air into the second suction port and pass through the second cooling duct via the connecting duct to the first cooling duct, and exhaust air from the first cooling duct through the exhaust port.

2. The cooking appliance according to claim 1, wherein: When the exhaust fan is operated, external air is sucked into the second cooling duct through the second suction port, cools the first electric component, and is then exhausted to the outside of the cooktop through the first cooling duct and the exhaust port.

3. The cooking appliance according to claim 1, wherein: The connection pipe is disposed in a direction perpendicular to a bottom surface of the cooktop.

4. The cooking appliance according to claim 1, further comprising: A second electrical component is arranged below the stove, Wherein, the second cooling pipe is configured to communicate with the second electrical component.

5. The cooking device according to claim 4, in, The first electrical component is disposed at the center of the front surface of the cooking appliance, and Wherein, a bottom surface of the stove is provided with a receiving portion, and the second electrical component is arranged in the receiving portion.

6. The cooking appliance according to claim 4, wherein: The first electrical component includes a display configured to display a status of the cooking appliance, and The second electrical component includes a printed circuit board on which a processor configured to control the cooking appliance is disposed.

7. The cooking appliance according to claim 5, wherein: When the exhaust fan is operated, external air is sucked into the second cooling duct through the second suction port, passes through the first and second electrical components, and then is exhausted to the outside of the cooktop through the first cooling duct and the exhaust port.

8. The cooking appliance according to claim 1, wherein: The second cooling duct is formed by a front surface of the cooktop, a top surface of the first cooling duct, a bottom surface of the cooktop, and both side surfaces of the cooking utensil.

9. The cooking device according to claim 8, in, The rear end of the second cooling pipe includes two rectangular holes, and Wherein, the connecting pipe comprises a rectangular tube corresponding to the two rectangular holes, and a partition is provided in the center of the connecting pipe.

10. The cooking appliance according to claim 1, wherein The first cooling pipeline comprises: a first duct portion, the width of the first duct portion gradually narrowing from the first suction port, and a second duct portion connected to the first duct portion, the height of the second duct portion gradually increasing from the first duct portion toward the exhaust fan, and Wherein, the second cooling pipe is connected to the second pipe portion.

11. The cooking appliance according to claim 1, further comprising: Two oven exhaust ports are disposed on the left and right sides of the exhaust port and are configured to communicate with the cooking chamber of the oven.

12. The cooking appliance according to claim 1, comprising: a door configured to open and close the cooking chamber; as well as a door air passage disposed in the door and configured to communicate with the first cooling duct; Wherein, the lower end of the door air passage leads to the outside of the cooking appliance.

13. The cooking appliance according to claim 12, wherein: When the exhaust fan is operated, external air is sucked into the first suction port to reach the first cooling duct, sucked into the second suction port to reach the second cooling duct, and sucked into the lower end of the door air passage to reach the first cooling duct; and wherein the external air sucked into the first suction port cools the top surface of the oven while passing through the first cooling duct and is discharged to the outside of the cooking appliance through the discharge port, The outside air sucked into the second suction port cools the first electrical component, is introduced into the first cooling duct, and is discharged to the outside of the cooking appliance through the discharge port, and The outside air sucked into the lower end of the door air passage cools the door, is introduced into the first cooling duct, and then is discharged to the outside of the cooking appliance through the discharge port.

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