Household cooking appliance

Abstract

The household cooking appliance according to an embodiment of the present invention includes a lower container directly heated by a heating element at the bottom, an upper container that houses an object to be cooked inside, is placed on the upper end of the lower container, and provides a cooking space such that the heated air heated by the lower container raises the internal temperature of the object to be cooked, and a lid that covers the upper container so that the object to be cooked is not exposed to the outside. The upper container includes a cooking table on which the object to be cooked is placed, a hot air inlet portion located at the center of the cooking table and configured to discharge the heated air flowing in from the lower container along the surface of the cooking table, a discharge groove located at the edge of the cooking table and configured such that substances discharged from the object to be cooked gather along the downward slope of the cooking table, and blade portions connected to the discharge groove and configured such that the peripheral edge of the lid is placed thereon to fix the lid.

Description

Technical Field

[0001] The present invention relates to household cooking appliances, and more particularly to an indirect heating type cooking appliance that can be used at home and can cook an object to be cooked by indirect heat including far-infrared rays.

Background Art

[0002] Generally, cooking appliances are tools used for cooking in the dictionary sense, including large equipment, cooking utensils, kitchen utensils, etc. The material, structure, and performance of the appliances affect the cooking work efficiency, the state of cooking, the economy of ingredients and heat sources, hygiene, etc., and can be classified in various ways according to household use and mass cooking use, by Korean food, Japanese food, Western food, Chinese food, and by type of cooking operation. There are those that can be used for multiple purposes and those with a narrow range of uses, and there are also devices that can be used for multiple purposes by replacing parts, and they can also be divided into pots, steamers, baking appliances, various pans, etc.

[0003] As a conventional cooking appliance, Korean Registered Patent No. 10-2142110 presents a cooking appliance using a far-infrared ray emitting substance (hereinafter referred to as a conventional cooking appliance). The conventional cooking appliance includes a receiving base body directly heated by a heating element, a cooking table configured such that the central part is high and the peripheral part is low and is placed on the placement part of the receiving base body, and a large number of heating holes are formed throughout so that hot air can pass through vertically. It also includes an oil collecting annular groove formed in an annular shape in the circumferential direction of the receiving base body so that oil discharged from the object to be cooked during cooking is collected through the cooking table, and a far-infrared ray emitter in a liquid or powder form that is stored inside the heating part of the receiving base body and emits far-infrared rays to the upper cooking table when heated by the heating element. By including these, the object to be cooked is indirectly heated so that far-infrared rays can penetrate the object to be cooked.

[0004] However, when used for household purposes, conventional cooking appliances have the problem that oil from the cooking object falls onto the receiving base body or the heating element through a large number of heating holes for directly transmitting far-infrared rays to the cooking object, thereby generating smoke. In addition, hot air from the heating element together with far-infrared rays is directly transmitted to the cooking object through a large number of heating holes, resulting in the problem that the lower part of the cooking object is cooked earlier than the upper part, and the user has to turn the cooking object over periodically.

[0005] Moreover, conventional cooking appliances have the problem that an oil-collecting annular groove is formed annularly around the receiving base body and cannot be separated from the receiving base body, making it difficult to clean. Most of the oil from the cooking object tends to collect in the oil-collecting annular groove, and it is necessary to clean the oil-collecting annular groove after use. However, for cleaning the oil-collecting annular groove, the user has the inconvenience of having to remove the radiators of the far-infrared part inside the receiving base body physically connected to the oil-collecting annular groove one by one.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The present invention has been made to solve the above problems, and an object thereof is to provide a household cooking appliance that does not generate smoke due to oil discharged from the cooking object and can evenly pass fire without turning over the cooking object.

Means for Solving the Problems

[0008] According to an embodiment of the present invention, a household cooking appliance includes a lower container directly heated by a lower heating element, an upper container that houses an object to be cooked therein, is placed on the upper end of the lower container, and provides a cooking space such that the heated air heated by the lower container raises the internal temperature of the object to be cooked, and a lid that covers the upper container so that the object to be cooked is not exposed to the outside. The upper container includes a cooking table on which the object to be cooked is placed, a hot air inlet portion located at the center of the cooking table and configured to discharge the heated air flowing in from the lower container along the surface of the cooking table, a discharge groove located at the edge of the cooking table and configured such that substances discharged from the object to be cooked gather along the downward slope of the cooking table, and blade portions connected to the discharge groove and configured such that the peripheral edge of the lid is placed thereon to fix the lid.

[0009] According to an embodiment, the hot air inlet portion may include an exhaust port including a plurality of inlet holes through which the heated air flows in, a cover configured to form a discharge path of the heated air while covering the exhaust port, and a fastener connecting the exhaust port and the center portion of the cover.

[0010] According to an embodiment, the exhaust port may include an annular first bent portion that forms a first step and surrounds the outer periphery of the exhaust port, an annular second bent portion that forms a second step and has a smaller diameter than the first bent portion, a first connecting portion that connects the first bent portion and the second bent portion and in which the plurality of inlet holes are formed, and a second connecting portion that connects the inside of the second bent portion and in which a first through hole through which the fastener penetrates is formed at the center portion.

[0011] According to an embodiment, the cover may include a disc having a second through hole at the center portion through which the fastener penetrates, and legs extending downward from the edge of the disc to surround the first bent portion.

[0012] According to an embodiment, the legs may include convex portions and concave portions arranged alternately.

[0013] According to an embodiment, the discharge path can be formed through a gap between the recess and the exhaust port.

[0014] According to an embodiment, a discharge hole through which the substance discharged from the object to be cooked is discharged to the outside of the upper container can be formed in the discharge groove.

[0015] According to an embodiment, the lower container includes a heating unit that protrudes downward so as to contact the heating element and is configured to accommodate a far-infrared radiator that emits far-infrared rays during heating, a fumigation unit that extends outward from the upper end of the heating unit and is configured to accommodate a fumigant at the upper part, and a placement unit that further extends outward from the edge of the fumigation unit and is configured to contact a lower part of the upper container and place the upper container.

[0016] According to an embodiment, the lower container can further include an inclined part configured to form a step between the fumigation part and the placement part.

Advantages of the Invention

[0017] The household cooking appliance according to an embodiment of the present invention includes a cooking table having a hot air inlet part, so that the hot air from the heating element can be effectively diffused into the upper container while the oil discharged from the object to be cooked does not fall into the lower container. This enables indirect heat cooking at home and allows the object to be cooked in the upper container to be evenly cooked well in a short time without turning over the object to be cooked. In addition, since the lower container includes a fumigation part, effective smoked cooking can be performed with a minimum amount of fumigant.

[0018] In addition, the household cooking appliance according to an embodiment of the present invention physically separates the upper container that comes into contact with oil and the lower container that does not come into contact with oil so that the substance (e.g., oil) discharged from the object to be cooked does not flow into the lower container and is discharged from the upper container to the outside. This makes cleaning easy and allows the far-infrared radiator in the lower container to be reused semi-permanently without a separate cleaning process.

Brief Description of the Drawings

[0019]

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Embodiments for Carrying Out the Invention

[0020] Hereinafter, embodiments of the present invention will be clearly and detailedly described to such an extent that those having ordinary knowledge in the technical field of the present invention can easily implement the present invention. However, since the present invention can be embodied in various different forms within the scope described in the claims, the embodiments described below are merely illustrative regardless of the expression. That is, the present invention is not limited to the embodiments disclosed below and can be embodied in various different forms.

[0021] The terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly has a different meaning. In this application, terms such as "including" or "having" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should not be construed as precluding the presence or addition possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0022] Terms such as first, second, etc. can be used to describe various components, but the components should not be limited by the terms. The terms are only used for the purpose of distinguishing one component from another.

[0023] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings as follows.

[0024] Figures 1 to 3 are diagrams showing a household cooking appliance according to an embodiment of the present invention. Figure 1 is a perspective view of the household cooking appliance 100, Figure 2 is a front view or side view of the household cooking appliance 100, and Figure 3 is a bottom view of the household cooking appliance.

[0025] The household cooking appliance 100 can include a lower container 110, an upper container 120, and a lid 130. The household cooking appliance 100 may be an indirect heating type cooking appliance that can be used at home. Indirect heating type cooking can mean a cooking method in which the object to be cooked is cooked by indirect heat using a medium such as air or water without physically directly contacting the heating element.

[0026] The household cooking appliance 100 can heat the cooking object inside the upper container 120 by directly receiving heat from a heating body by the lower container 110 and transmitting hot air to the upper container 120 through a medium accommodated inside the lower container 110. Further, the lid 130 can maintain the temperature inside the upper container 120 at a constant temperature or higher by minimizing the outflow of the hot air transmitted to the upper container 120.

[0027] According to an embodiment, the lower container 110 can accommodate a far-infrared radiator. The far-infrared radiator may be a substance that emits far-infrared rays. For example, any one or two or more of loess, charcoal, tourmaline, germanium, maifan stone, and ceramics may be mixed, or a composition obtained by mixing traditional Chinese medicine powder or a decoction of traditional Chinese medicine may be used.

[0028] Thereby, the household cooking appliance 100 can emit a large amount of far-infrared rays during heating, so that the far-infrared rays penetrate deep into the cooking object and the cooking object is heated quickly and evenly. At the same time, the far-infrared rays can remove the odor of the cooking object and discharge the high-fat oil of the cooking object, improving the taste and aroma without burning.

[0029] Next, the household cooking appliance 100 will be described by taking grilled food as an example for convenience of explanation. However, the household cooking appliance 100 should not be understood as a cooking appliance limited to grilled food. Those having ordinary knowledge in the technical field of the present invention can understand that the technical idea of the present invention can be easily applied not only to grilled food but also to steamed food, rice cooking, etc.

[0030] FIG. 4 is an exploded view of a household cooking appliance according to an embodiment of the present invention, FIG. 5 is a cross-sectional view of the lower container in FIG. 4, and FIGS. 6 and 7 are views showing the upper container in FIG. 4. Referring to FIGS. 4 to 7, the household cooking appliance 100 can be stacked in order from bottom to top with the lower container 110, the upper container 120, and the lid 130.

[0031] The lower container 110 can be directly heated by a lower heating element. Although the heating element is not shown, it can include heating appliances used at home. For example, the heating element can include a gas range, a highlight, an induction, etc. The lower container 110 can include a heating part 111, a smoking part 112, an inclined part 113, and a placement part 114.

[0032] The heating part 111 is formed to protrude downward so as to abut against the heating element, and can accommodate a far-infrared radiator 115 that emits far-infrared rays during heating. The lower protrusion of the heating part 111 is circular, and its diameter L can correspond to the diameter of the heating element. For example, the heating element can include a burner with a diameter of 18 cm, and the diameter L of the lower protrusion of the heating part 111 can be 18 cm. That is, the size of the heating part 111 varies depending on the size of the burner.

[0033] The smoking part 112 can extend outward from the upper end of the heating part 111. A smoking agent can be placed on the upper part of the smoking part 112. The smoking agent does not receive heat directly from the heating element, but can generate smoke by the heat conducted from the heating part 111. For this reason, the lower container 110 can be made of a material with high thermal conductivity such as stainless steel, aluminum, copper, cast iron, enamel, etc.

[0034] The inclined part 113 can be configured to form a step between the smoking part 112 and the placement part 114. That is, the inclined part 113 can divide the smoking part 112 and the placement part 114, and a space for placing the smoking agent can be provided by the step. According to an embodiment, the inclined part 113 may be omitted, and in this case, the placement part 114 can form an upward inclination outward.

[0035] The placement part 114 can extend further outward from the edge of the fuming part 112. The upper container 120 can be placed on the placement part 114. According to an embodiment, the cooking surface 121 of the upper container 120 can be configured to slope downward on the outside. By having a lower part of the cooking surface 121 abut against the placement part 114, the upper container 120 can be placed on the placement part 114. According to an embodiment, the edge of the placement part 114 can contact the inner peripheral surface of the discharge groove 126.

[0036] The upper container 120 can be configured to accommodate an object to be cooked inside and provide a cooking space such that the air heated by the lower container 110 raises the internal temperature of the object to be cooked. The upper container 120 can include a cooking surface 121, an exhaust port 122, a cover 123, a fastener 124, a blade part 125, and a discharge groove 126.

[0037] An object to be cooked can be placed on the cooking surface 121. The cooking surface 121 has a disc shape and can be configured to slope downward on the outside. This is to collect substances such as oil discharged from the object to be cooked in the discharge groove 126 located at the edge of the cooking surface 121. According to an embodiment, the cooking surface 121 can be made of a material with high thermal conductivity such as stainless steel, aluminum, copper, cast iron, enamel, etc.

[0038] The exhaust port 122, the cover 123, and the fastener 124 can form a hot air inlet part 1000. The hot air inlet part 1000 is located at the center of the cooking surface 121 and can be configured to discharge the heated air flowing in from the lower container 110 along the surface of the cooking surface 121. For example, the air heated by the lower container 110 can enter the upper container 120 through the discharge path formed by the exhaust port 122 and the cover 123, and the heated air can cause a convection phenomenon in the upper container 120 to cook the object to be cooked. The fastener 124 can connect and fix the exhaust port 122 and the cover 123. A detailed description of this will be given later with reference to FIGS. 9 to 11.

[0039] The blade part 125 is located on the outermost side of the upper container 120, and the peripheral edge of the lid 130 can be placed on the blade part 125. The blade part 125 extends outward from the upper end of the upper container 120 by a certain length, and the user can lift the upper container 120 using the blade part 125 as a handle and separate it from the lower container 110. Depending on the embodiment, a handle made of a material with low thermal conductivity such as silicon can be attached to the blade part 125.

[0040] The blade part 125 can be connected to the discharge groove 126. The discharge groove 126 is located at the edge of the cooking table 121, and substances discharged from the object to be cooked can gather in the discharge groove 126 along the downward slope of the cooking table 121. A discharge hole H through which substances discharged from the object to be cooked are discharged to the outside of the upper container 120 can be formed in the discharge groove 126. There may be one or more discharge holes H.

[0041] The lid 130 can cover the upper container 120 so that the object to be cooked is not exposed to the outside. A handle 135 can be formed at the center of the lid 130. The lid 130 can be made of tempered glass. Depending on the embodiment, the lid 130, the upper container 120, and the lower container 110 can all have the same central axis.

[0042] FIG. 8 is a cross-sectional view of the household cooking appliance of FIG. 2, FIG. 9 is an exploded view of the hot air inlet part of FIG. 8, and FIG. 10 is a view showing the lower part of the cover of FIG. 9. Referring to FIGS. 8 to 10, the upper container 120 can include a hot air inlet part 1000.

[0043] The hot air inlet part 1000 can include an exhaust port 122, a cover 123, and a fastener 124. The exhaust port 122 can include a plurality of inlet holes h1 through which air heated in the lower container 110 flows in. The air heated in the lower container 110 can enter the upper container 120 through the plurality of inlet holes h1.

[0044] According to the embodiment, the exhaust port 122 can be circular and have an overall upwardly convex shape. The exhaust port 122 can include a first bent portion 1221, a second bent portion 1222, a first connecting portion 1223, and a second connecting portion 1224.

[0045] The first bent portion 1221 may be annular surrounding the outer peripheral portion of the exhaust port 122. The first bent portion 1221 can be bent in a direction in which the absolute value of the surface gradient increases toward the outside. The first bent portion 1221 can form a first step by bending. The first step can form a passage through which air flowing in from the lower container 110 is discharged in relation to the cover 123, and can prevent oil or the like from flowing into the lower container 110 in relation to the cooking table 121.

[0046] The second bent portion 1222 may be annular with a diameter smaller than that of the first bent portion 1221. The second bent portion 1222 can be bent in a direction in which the absolute value of the surface gradient increases toward the outside. The second bent portion 1222 can form a second step by bending to form a storage space for air flowing in through a plurality of inflow holes h1. That is, the first bent portion 1221 and the second bent portion 1222 can form a two-step stepped difference.

[0047] The first connecting portion 1223 can be configured to connect the first bent portion 1221 and the second bent portion 1222. A plurality of inflow holes h1 can be formed in the first connecting portion 1223. The plurality of inflow holes h1 can be arranged at regular intervals along the circumferential direction of the first connecting portion 1223. According to the embodiment, the surface of the first connecting portion 1223 may have a constant inclination or an upwardly convex shape.

[0048] The second connecting part 1224 can be configured to connect the inside of the second bent part 1222. A first through hole h2 through which the fastener 124 penetrates can be formed in the second connecting part 1224. The first through hole h2 can be located at the center of the second connecting part 1224. Depending on the embodiment, the surface of the second connecting part 1224 may have a constant inclination or an upward convex shape.

[0049] The cover 123 can be configured to form a discharge path for the heated air while covering the exhaust port 122. The cover 123 can include a disc 1231 and legs 1232. A second through hole h3 through which the fastener 124 penetrates can be formed at the center of the disc 1231. The legs 1232 can extend downward from the edge of the disc 1231 and be positioned to surround the first bent part 1221.

[0050] The legs 1232 include convex portions (conv) and concave portions (conc), and a plurality of convex portions (conv) and concave portions (conc) can be respectively configured and arranged alternately. Depending on the embodiment, the lower end of the legs 1232 can be configured in a wavy shape. When the legs 1232 are positioned to surround the first bent part 1221, a gap (G in FIG. 11) can be generated between the concave portion (conc) and the exhaust port 122. The heated air is discharged into the gap, and a discharge path can be formed.

[0051] The fastener 124 can be configured to connect the exhaust port 122 and the center of the cover 123. The fastener 124 can penetrate through the first through hole h2 of the exhaust port 122 and the second through hole h3 of the cover 123 and be fastened to fix the exhaust port 122 and the cover 123. For example, the fastener 124 can fix the exhaust port 122 and the cover 123 by bolt - nut connection. For example, the fastener 124 can fix the exhaust port 122 and the cover 123 by rivet connection (rivet).

[0052] According to the embodiment, when the exhaust port 122 and the cover 123 are joined, the second bent portion 1222 can create a clearance between the exhaust port 122 and the cover 123. The disc 1231 may be flat or have the same inclination as that of the first connecting portion 1223, and the second bent portion 1222 with a convex shape upward can fasten the disc 1231 while being separated from the first connecting portion 1223. The heated air passing through the plurality of inflow holes h1 is stored in the clearance between the exhaust port 122 and the cover 123, and can escape through the discharge path when the pressure exceeds a specific value.

[0053] FIG. 11 is a diagram showing the air flow by the hot air inflow portion of FIG. 8. Referring to FIG. 11, the air heated in the lower container 110 can rise and enter the upper container 120 through the hot air inflow portion 1000.

[0054] According to the embodiment, the heated air can be stored in the clearance between the exhaust port 122 and the cover 123 through the plurality of inflow holes h1. The exhaust port 122 can form a clearance when joined to the cover 123 by the second bent portion 1222. The heated air can be stored in the clearance through the plurality of inflow holes h1.

[0055] The heated air can escape to the cooking table 121 through the discharge path. While the leg 1232 surrounds the first bent portion 1221, a clearance G is generated between the concave portion (conc) of the leg 1232 and the exhaust port 122, and the heated air can be discharged into the clearance G.

[0056] According to the embodiment, due to the continuous inflow of the heated air, the pressure in the clearance can become relatively stronger than the pressure in the internal space of the upper container 120. Therefore, when the pressure exceeds a specific value, the heated air can be discharged from the clearance to the internal space of the upper container 120. At this time, the clearance G is relatively narrow compared to the clearance between the exhaust port 122 and the cover 123, and the flow rate of the air discharged through the clearance G can be increased.

[0057] The direction of the heated air flowing into the upper container 120 through the hot air inlet 1000 may be the surface direction of the cooking table 121. That is, the inflowing air can cause a convection phenomenon inside the upper container 120 and circulate inside the upper container 120. Thereby, even while indirectly passing fire to the object to be cooked, the fire can be passed quickly and evenly.

[0058] According to the embodiment, when a smoking agent is arranged in the smoking part 112 of the lower container 110, the smoke generated by the smoking agent can flow into the upper container 120 through the plurality of inflow holes h1 and the gap G. Thereby, the aroma of the smoke can be added to the object to be cooked, and smoked cooking can be easily and conveniently completed even at home.

[0059] According to the embodiment, when the far-infrared radiator 115 is arranged in the heating part 111 of the lower container 110, the far-infrared rays radiated from the far-infrared radiator 115 can flow into the upper container 120 through the plurality of inflow holes h1 and the gap G. Thereby, while removing the odor of the object to be cooked and discharging the high-fat oil of the object to be cooked, the taste and aroma can be improved.

[0060] The above-described content is a specific example for implementing the present invention. The present invention includes not only the above-described embodiments, but also embodiments that can be simply designed or easily modified. In addition, the present invention also includes technologies that can be easily deformed and implemented using the embodiments. Therefore, the scope of the present invention should not be defined only by the above-described embodiments, but should be defined not only by the scope of the claims described later, but also by equivalents thereof.

Claims

1. a lower vessel that is directly heated by a lower heating body; an upper container that accommodates food items therein and is placed on an upper end of the lower container to provide a cooking space so that air heated in the lower container can increase an internal temperature of the food items; A lid for covering the upper container so that the food to be cooked is not exposed to the outside; Including, The upper container is A cooking table on which the food to be cooked is placed; a hot air inlet portion located at a center of the cooking table and configured to discharge the heated air flowing in from the lower container along a surface of the cooking table; a drainage channel located at an edge of the cooking surface and configured to allow material drained from the cooking object to collect along a downward slope of the cooking surface; and a wing portion connected to the drain groove and configured to receive a peripheral portion of the lid to secure the lid.

2. The hot air inlet portion is an exhaust port including a plurality of inlet holes through which the heated air flows; A cover configured to cover the exhaust port and form an exhaust path for the heated air; 2. The domestic cooking appliance of claim 1, further comprising a fastener connecting the exhaust port and a central portion of the cover.

3. The exhaust port is a first bent portion having an annular shape and forming a first step and surrounding an outer periphery of the exhaust port; a second bent portion having a ring shape and a diameter smaller than that of the first bent portion, the second bent portion forming a second step; a first connecting portion connecting the first bent portion and the second bent portion and having the plurality of inlet holes formed therein; and a second connecting portion that connects the interiors of the second bent portions and has a first through hole formed in a center thereof through which the fastener passes.

4. The cover is a circular plate having a second through hole formed in the center thereof through which the fastener passes; 4. The domestic cooking utensil according to claim 3, further comprising a leg extending downward from an edge of the disk and surrounding the first bent portion.

5. the legs include alternating protrusions and recesses; The domestic cooking appliance according to claim 4, wherein the exhaust passage is formed through a gap between the recess and the exhaust port.

6. 2. The household cooking utensil according to claim 1, wherein the discharge groove is formed with a discharge hole through which material discharged from the object to be cooked is discharged to the outside of the upper container.

7. The lower container is A heating section that is formed to protrude downward so as to contact the heating body and is configured to accommodate a far-infrared radiator that emits far-infrared rays when heated; A smoking section extending outward from the upper end of the heating section and configured to accommodate a smoking agent in an upper portion; The household cooking appliance according to claim 1, further comprising a mounting portion extending outward from an end of the smoking portion and configured to contact a lower portion of the upper container so that the upper container is mounted thereon.

8. The household cooking device according to claim 7, wherein the lower container further includes an inclined portion configured to form a step between the smoking section and the placement section.

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