Functional cover for air circulation electric roaster and air circulation electric roaster equipped with same

Abstract

To provide a functional cover for an air circulation type electric roaster, capable of maintaining the temperature of a cooking plate at a high temperature while preventing the lower part from heating during cooking. [Solution] A functional cover for an air circulation electric roaster has a first opening formed on the air intake side and a second opening formed on the air exhaust side. The first opening is formed as a long opening having a length corresponding to the length of the air intake side along the first direction, and the second opening is formed as a long opening having a length corresponding to the length of the air exhaust side along the first direction.

Description

[Technical field]

[0001] The present invention relates to a functional cover for an air circulation electric roaster and an air circulation electric roaster equipped with the same. [Background technology]

[0002] An air circulation electric roaster has a long fan located on one side of the bottom of the main body and a cooking plate on the top. When cooking, the fan is operated to create an air flow inside the electric roaster, so that smoke is not discharged to the outside and oil falls into an internal oil receiver through an oil drain hole in the cooking plate (see, for example, Patent Document 1).

[0003] In such an air circulation type electric roaster, an air intake section and an air exhaust section are formed on both sides of the air circulation plate, and when the fan is operated, air is sucked in from the cooking plate through the air intake section, and the air passes through the lower part of the air circulation plate and is exhausted through the air exhaust section.

[0004] In order to cook a large amount of food, such as meat, deliciously using such an air-circulating electric roaster, it is necessary to cook it quickly at high heat, but this can result in inconveniences such as oil splashing, smoke generation, washing of internal components, and cleaning of the surrounding oil.

[0005] In particular, to cook meat deliciously, it is necessary to cook it in a way that causes the Maillard reaction or the Browning reaction, otherwise the outside will be crispy and flavorful while the inside will be soft and the juices will be alive.

[0006] Meat, which is about 70% water and 30% organic, is cooked on a cooking plate at temperatures of over 100 degrees Celsius. The water gradually turns to steam and disappears, making the meat thin and maintaining a temperature at which the Maillard reaction does not occur, resulting in the meat becoming tough and untasty.

[0007] To heat meat to temperatures above 177 degrees Celsius, where the Maillard reaction occurs, sufficient cooking plate temperature and oil are required. For example, to get enough heat, you can preheat the cooking plate before grilling the meat, which will raise the surface temperature of the meat to a high temperature.

[0008] It is not easy to obtain such a sufficient amount of heat with a normal electric grill (roaster), and even if the cooking plate is preheated, as soon as meat is placed on the cooking plate, the heat is absorbed by the meat, causing the temperature to drop, and as the temperature rises again, the moisture from the meat on the cooking plate begins to evaporate. By cooking while maintaining a high temperature, the oil on the surface forms a film, and the meat is cooked until golden brown as the Maillard reaction occurs, but once the temperature drops, the moisture in the meat evaporates, causing the meat to be cooked badly.

[0009] When roasting meat using an air-circulating electric roaster, it is possible to use a lid to prevent moisture in the meat from evaporating and facilitate the Maillard reaction. However, if a conventional lid is used, moisture may accumulate inside, preventing the Maillard reaction from occurring, or there may be a risk of overheating at the bottom where the fan is located. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Korean Patent Publication No. 10-2007-0008383 Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention has been made in consideration of the above, and one object of the present invention is to provide a functional cover for an air circulation electric roaster that can maintain the temperature of the cooking plate at a high temperature while preventing the lower part from overheating during cooking.

[0012] Furthermore, another object of the present invention is to provide a functional cover for an air circulation type electric roaster, which can prevent the lower part from overheating during cooking, maintain the temperature of the cooking plate at a high temperature, and prevent oil from splashing to the outside.

[0013] The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by a person having ordinary skill in the art from the following description. [Means for solving the problem]

[0014] In at least one embodiment of the present invention, there is provided a functional cover for an air circulation electric roaster, the functional cover comprising: a body; a heater for generating heat; at least one fan disposed inside the body along a first direction of the body; a cooking plate heated by heat from the heater; an air intake portion for drawing air above the cooking plate into the body; and an air exhaust portion for exhausting air that has passed through the inside of the body to the outside, the functional cover comprising: a first opening formed on the air intake portion side; and a second opening formed on the air exhaust portion side, the first opening being formed as an elongated opening having a length corresponding to a length of the air intake portion along the first direction; and the second opening being formed as an elongated opening having a length corresponding to a length of the air exhaust portion along the first direction.

[0015] In at least one embodiment of the present invention, the functional cover for the air circulation electric roaster further includes at least one pad provided on a first side of the lower portion along the first direction.

[0016] In at least one embodiment of the present invention, the functional cover for the air circulation electric roaster further includes a hinge pin formed on a second side opposite to the first side along the first direction.

[0017] In at least one embodiment of the present invention, the functional cover for the air circulation electric roaster further includes a hinge frame having a hinge groove on one side into which the hinge pin is rotatably inserted and a hinge frame formed on the other side to be fixed to the body, and the hinge groove is formed to have a height equivalent to a thickness of the pad from the body.

[0018] In at least one embodiment of the present invention, the functional cover for the air circulation electric roaster further includes a flap portion formed to extend downward at a predetermined angle from the inside of at least one of the first opening and the second opening.

[0019] In at least one embodiment of the present invention, the first opening is formed to be open to the outside.

[0020] In at least one embodiment of the present invention, the width of the first opening is equal to the width of the second opening.

[0021] In at least one embodiment of the present invention, the width of the first opening is different from the width of the second opening.

[0022] In at least one embodiment of the present invention, there is provided an air circulation electric roaster, which comprises a functional cover for the air circulation electric roaster.

[0023] At least one embodiment of the present invention provides an air circulation electric roaster comprising: a body; a heater for generating heat; a fan disposed inside the body along a first direction of the body; a cooking plate heated by heat from the heater; an air intake portion for drawing air above the cooking plate toward the body; an air exhaust portion for exhausting air that has passed through the inside of the body to the outside; and a functional cover for covering a cooking space above the cooking plate, wherein the functional cover has a first opening formed on the air intake portion side and a second opening formed on the air exhaust portion side, the first opening being formed as an elongated opening having a length corresponding to a length of the air intake portion along the first direction, and the second opening being formed as an elongated opening having a length corresponding to a length of the air exhaust portion along the first direction.

[0024] Although the embodiments in this specification are described independently of each other, they may be combined with each other, and the combined embodiments are also included within the scope of the present invention.

[0025] The embodiments described herein are merely illustrative and are not intended to be limiting in any manner. In addition to the illustrative embodiments, embodiments, and features described above, additional embodiments, embodiments, and features will become apparent by reference to the drawings and detailed description. Effect of the Invention

[0026] According to at least one embodiment of the present invention, it is possible to provide a functional cover for an air circulation electric roaster, which can prevent the lower part from overheating during cooking while maintaining the temperature of the cooking plate at a high temperature.

[0027] Furthermore, according to at least one embodiment of the present invention, it is possible to provide a functional cover for an air circulation type electric roaster, which can prevent overheating of the lower part during cooking, maintain the temperature of the cooking plate at a high temperature, and prevent oil from splashing to the outside.

[0028] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those having ordinary skill in the art from the following description. [Brief description of the drawings]

[0029] [Figure 1] FIG. 2 is a perspective view of an air circulation electric roaster equipped with a functional cover for an air circulation electric roaster according to at least one embodiment of the present invention; [Diagram 2] FIG. 1 is a side cross-sectional view of an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Diagram 3] FIG. 1 is a side cross-sectional perspective view of an air circulating electric roaster in accordance with at least one embodiment of the present invention. [Figure 4] 1A and 1B are top and bottom perspective views of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Diagram 5] 1A-1D are top, front, bottom, and side views of a functional cover for an air circulating electric roaster in accordance with at least one embodiment of the present invention. [Figure 6] FIG. 2 is a perspective view showing a form in which a functional cover for an air-circulating electric roaster according to at least one embodiment of the present invention is hinged to the air-circulating electric roaster; [Figure 7] FIG. 2 is a perspective view showing a functional cover for an air-circulating electric roaster according to at least one embodiment of the present invention being hinged to the air-circulating electric roaster to close the cooking space; [Figure 8] FIG. 2 is a side view showing a functional cover for an air-circulating electric roaster according to at least one embodiment of the present invention being hinged to the air-circulating electric roaster to close the cooking space. [Figure 9] FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 10]FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 11] FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 12] FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 13] FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 14] FIG. 2 is a top view of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention. [Figure 15] 1 is a graph showing the change in temperature of the cooking plate and the oil receiving part as the width of the first opening of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention is changed while the width of the second opening is fixed. [Figure 16] 1 is a graph showing the change in temperature of the cooking plate and the oil receiving part when the width of the second opening of a functional cover for an air circulation electric roaster in accordance with at least one embodiment of the present invention is changed while the width of the first opening is fixed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a functional cover for an air circulation type electric roaster and an air circulation type electric roaster having the same according to at least one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0031] FIG. 1 is a perspective view of an air-circulating electric roaster 200 equipped with a functional cover 100 for an air-circulating electric roaster according to at least one embodiment of the present invention.

[0032] As shown in FIG. 1, the functional cover 100 for an air circulation type electric roaster according to at least one embodiment of the present invention is detachably mounted on the air circulation type electric roaster 200 by forming a rotatable hinge structure by combining a hinge pin (or hinge groove) provided on one side with a hinge groove (or hinge pin) provided on one side of the air circulation type electric roaster 200, and is configured to open and close the cooking space of the air circulation type electric roaster 200.

[0033] Fig. 2 is a side cross-sectional view of an air circulation electric roaster 200 in accordance with at least one embodiment of the present invention. Fig. 3 is a side cross-sectional perspective view of an air circulation electric roaster 200 in accordance with at least one embodiment of the present invention.

[0034] As shown in FIG. 2 and FIG. 3, air circulation type electric roaster 200 according to at least one embodiment of the present invention includes body 210, heater 220 for generating heat, a power supply unit (not shown) for supplying power to heater 220, fan 230 arranged inside body 210 along a first direction of body 210, cooking plate 240 having at least one first through hole (oil drain hole) and arranged on top of heater 220 to be heated by heat from heater 220, air circulation plate 250 including a first side wall having air intake part 252 for drawing air above cooking plate 240 into body 210, a second side wall having air exhaust part 253 for exhausting air that has passed through inside body 210 toward the top of cooking plate 240, and a bottom surface having at least one second through hole 251, and oil receiving part 260.

[0035] The body 210 is placed on a flat surface such as a table or floor, houses various components inside, and forms the overall appearance of the air circulation electric roaster 200 according to at least one embodiment of the present invention. A fan 230 is located inside the lower part of the body 210, and an oil receiving part 260, an air circulation plate 250, a heater 220, and a cooking plate 240 are arranged in this order from bottom to top.

[0036] As shown in FIG. 3, fan 230 disposed inside body 210 is a long fan with a built-in motor, and this fan 230 has the function of circulating the air inside through the operation of fan 230, sucking in smoke (hot air containing oil and odors) generated during cooking, and discharging air from which the oil and odors have been removed to the outside of body 210.

[0037] That is, as shown in FIG. 2, when fan 230 is operated, air above cooking plate 240 is sucked in through air intake portion 252 of air circulation plate 250 in the direction of arrow A, passes through the bottom of main body 210 in the direction of arrow B and the top of oil receiving portion 260, moves to the opposite side in the direction of arrow C, and is discharged through air exhaust portion 253 of air circulation plate 250 in the direction of arrow D.

[0038] Here, the air circulation plate has a first side wall formed with an air intake portion 252 for drawing air above the cooking plate 240 into the body 210, and a second side wall formed with an air discharge portion 253 for discharging air that has passed through the inside (lower part) of the body 210 toward the top of the cooking plate 240, and is a member for circulating air above the cooking plate 240 in the direction of the arrow shown in Figure 2 by operation of the fan 230.

[0039] 1 to 3 is illustrated as a member in which a first side wall having an air intake portion 252, a second side wall having an air exhaust portion 253, and a bottom portion having a second through hole 251 are integrally formed, but this is merely one embodiment, and for example, the first side wall having an air intake portion 252 and the second side wall having an air exhaust portion 253 may be formed as part of the body 210. In this case, the air circulation plate is composed of a plate-shaped bottom portion having a second through hole 251, and functions to circulate air above the cooking plate 240 to the bottom of the body 210 in the direction of the arrow shown in FIG.

[0040] In other words, the upper side of the body 210 is formed to extend to the positions of the air intake part 252 and the air exhaust part 253, respectively, and the extended parts function as the first side wall and the second side wall, respectively. It goes without saying that such a form is also included in the scope of the present invention.

[0041] Although Figures 1 to 3 show a configuration in which one fan 230 is arranged on the air intake section 252 side, this is merely one embodiment, and for example, a dual fan structure in which an air intake fan is arranged on the air intake section 252 side and an air exhaust fan is arranged on the air exhaust section 253 side is also possible, and it goes without saying that such a configuration is also included in the scope of the present invention.

[0042] In at least one embodiment of the present invention, the first through hole 241 is formed near the center of the cooking plate 240, and the second through hole 251 is formed at a position opposite the first through hole 241 of the air circulation plate 250, with the same size as the first through hole 241 or larger than the first through hole 241.

[0043] In the example shown in FIG. 2, cooking plate 240 is shown to have one through hole at the center (or near the center), however, this is merely one embodiment, and it goes without saying that the present invention is not limited to the particular shapes of body 210, heater 220, fan 230, cooking plate 240, air circulation plate 250, or oil receiving portion 260.

[0044] As shown in FIG. 3, the air intake section 252 and the air exhaust section 253 have a structure in which a plurality of air vents are formed along the longitudinal direction of the body 210 (i.e., along the longitudinal direction of the fan 230), which is usually formed to be equal to or longer than the length of the fan 230.

[0045] In at least one embodiment of the present invention, the overall size of the air discharge portion 253 is formed to be equal to or larger than the overall size of the air intake portion 252 .

[0046] By forming the size of the air discharge part 253 to be equal to or larger than the size of the air intake part 252, a flow path for the exhausted air can be secured and the decrease in exhaust efficiency due to the exhaust pressure that becomes lower toward the air discharge part 253 can be minimized.

[0047] The air circulation electric roaster 200 with the above structure does not easily obtain enough heat to cause the Maillard reaction, especially when roasting thick steak-like meat, and even if the cooking plate is preheated, the meat loses heat as soon as the meat is placed on the cooking plate, causing the temperature to drop, and as the temperature rises, moisture from the meat on the cooking plate begins to evaporate. By cooking while maintaining a high temperature, the oil on the surface forms a film, causing the Maillard reaction and roasting the meat to a golden brown, but once the temperature drops, the moisture in the meat evaporates, resulting in an unappetizing roast.

[0048] Furthermore, if the thickness of the meat to be cooked is too thick for the height of the air intake portion 252, the air above the cooking plate 240 cannot be sufficiently drawn in, resulting in the release of oil and odor to the outside.

[0049] The functional cover 100 for an air circulation electric roaster according to at least one embodiment of the present invention makes it difficult for moisture in meat to evaporate when roasting meat using an air circulation electric roaster, making it easy for the Maillard reaction to occur, and prevents oil and odor from being released to the outside even when roasting thick steak-like meat, while preventing moisture from accumulating inside, which can cause the Maillard reaction to not occur properly, and preventing the lower part where the fan is located from overheating.

[0050] Fig. 4 is an upper perspective view and a lower perspective view of a functional cover 100 for an air-circulating electric roaster according to at least one embodiment of the present invention. Fig. 5 is a top view (a), a front view (b), a bottom view (c), and a side view (d) of a functional cover 100 for an air-circulating electric roaster according to at least one embodiment of the present invention.

[0051] As shown in FIG. 4 and FIG. 5, the functional cover 100 for an air circulation type electric roaster according to at least one embodiment of the present invention includes a body, a heater for generating heat, a fan arranged inside the body along a first direction of the body, a cooking plate heated by heat from the heater, and an air circulation plate having an air intake part for drawing air above the cooking plate into the body and an air exhaust part for exhausting air that has passed through the inside of the body to the outside, and is composed of a flat frame 110 coupled to the air circulation type electric roaster 200 and forming the overall appearance of the functional cover 100 for an air circulation type electric roaster, a first opening 130 formed on the air intake side of the frame 110, a second opening 140 formed on the air exhaust side of the frame 110, and a flat window member 120 made of a transparent heat-resistant material and located in the space between the first opening 130 and the second opening 140 of the frame 110.

[0052] In at least one embodiment of the present invention, the frame 110 can be made using polyethylene terephthalate (PET), polybutylene terephthalate (PBT), composite polypropylene (PP), uncolored glass material (for boiling water), or metal (stainless steel or aluminum) materials.

[0053] In at least one embodiment of the present invention, the window member 120 may be made using heat resistant glass or heat tempered glass.

[0054] The frame 110 shown in Figures 4 and 5 together with the window member 120 constitute the entire functional cover 100 for an air circulation electric roaster in a flat plate shape, but this is only one embodiment, and the scope of the present invention also includes a configuration in which the frame 110 is flat and the window member 120 is a convex lens shape that rises upward, or a configuration in which the frame 110 and the window member 120 together are a convex lens shape that rises upward.

[0055] That is, in at least one embodiment of the present invention, the frame 110 is flat and the window member 120 is formed in the shape of a convex lens that bulges upward.

[0056] In at least one embodiment of the present invention, the frame 110 and the window member 120 are formed together in the shape of a convex lens that protrudes upward.

[0057] The gray area indicated by the dotted line in Figure 5 roughly represents the overall area of ​​the air circulation plate 250 as viewed from above, and in the top view (a), the upper side of the gray area corresponds to the location of the air intake section 252, and the lower side of the gray area corresponds to the location of the air exhaust section 253.

[0058] In at least one embodiment of the present invention, the first opening 130 is formed as an elongated opening having a length W1 along the first direction that corresponds to or is longer than the length of the air intake portion 252 and a predetermined width d1 on the inside based on the position of the air intake portion 252, and the second opening 140 is formed as an elongated opening having a length W2 along the first direction that corresponds to or is longer than the length of the air discharge portion 253 and a predetermined width d2 on the inside based on the air discharge portion 253.

[0059] Here, the length of first opening 130 corresponds to the overall length of air intake section 252 and the length of second opening 140 corresponds to the overall length of air exhaust section 253 in the sense that first opening 130 has a length that does not impede the air intake function of air intake section 252 and second opening 140 has a length that does not impede the air exhaust function of air exhaust section 253, but does not necessarily mean that the length of first opening 130 is equivalent to the overall length of air intake section 252 and the length of second opening 140 is equivalent to the overall length of air exhaust section 253.

[0060] In at least one embodiment of the present invention, the first opening 130 and the second opening 140 function to smoothly inhale and exhaust air by the operation of the fan 230 when cooking is performed with the functional cover 100 for the air circulation electric roaster according to at least one embodiment of the present invention closed, thereby preventing overheating of the lower part during cooking and maintaining the temperature of the cooking plate at a high temperature. It is preferable that the length of the first opening 130 is formed to the entire length of the air intake part 252 and the length of the second opening 140 is formed to the entire length of the air exhaust part 253, but it is also possible to form them shorter as long as it does not significantly impede air circulation.

[0061] Therefore, the first opening 130 and the second opening 140 may be formed shorter or longer than the overall length of the air intake portion 252 and the air discharge portion 253, respectively, as long as they are formed as elongated holes along the first direction and do not significantly impede air circulation, so it should be interpreted as including this gist when it is said that the length of the first opening 130 corresponds to the overall length of the air intake portion 252 and the length of the second opening 140 corresponds to the overall length of the air discharge portion 253.

[0062] In at least one embodiment of the present invention, the width d1 of the first opening 130 is equal to or different from the width d2 of the second opening 140. For example, the first opening 130 may be formed to have a larger width than the second opening 140, or the second opening 140 may be formed to have a larger width than the first opening 130.

[0063] In an air circulation electric roaster, when the internal fan is activated, air above the cooking plate is sucked in through the air intake of the air circulation plate, passes through the bottom of the body, passes over the oil receiver, and flows to the opposite side, then is exhausted through the air exhaust of the air circulation plate. Part of the air exhausted through the air exhaust is sucked in again through the air intake and circulates inside the body, and the rest is exhausted to the outside.

[0064] Thus, if an air-circulating electric roaster, which requires air to be drawn in and exhausted, is covered with a regular lid while operating, not only will the air circulation be disrupted, but heat may build up inside, leading to overheating or the risk of a fire.

[0065] In order to solve such problems, the functional cover 100 for an air circulation electric roaster according to at least one embodiment of the present invention forms a first opening 130 on the air intake side and a second opening 140 on the air exhaust side, and further makes the width d1 of the first opening 130 equal to or larger than the width d2 of the second opening 140, thereby making it possible to maintain a high temperature of the cooking plate while preventing overheating of the lower part during cooking.

[0066] FIG. 4 shows an example in which the first opening 130 and the second opening 140 are both formed as long openings (holes), but at least one of the first opening 130 and the second opening 140 may be formed so as to be open to the outside.

[0067] That is, as shown in FIG. 5, by cutting away at least the outside of the opening on the side where the hinge structure is provided so as to open it, it is possible to improve ease of manufacture.

[0068] In at least one embodiment of the present invention, the functional cover 100 for the air circulation electric roaster further includes at least one pad 180 provided on one side of the lower part of the frame 110 along the first direction.

[0069] The functional cover 100 for air circulation type electric roaster according to at least one embodiment of the present invention is not a structure that seals the cooking space like a general lid, but is a structure that maintains smooth air circulation during cooking with the air circulation type electric roaster, prevents overheating at the bottom, and keeps the temperature of the cooking plate high. When the cover is closed, the functional cover 100 for air circulation type electric roaster needs to be separated from the body of the air circulation type electric roaster by a predetermined distance.

[0070] In this way, the pad 180 is for ensuring a distance from the body of the air circulation type electric roaster so as not to seal the cooking space when the functional cover 100 for the air circulation type electric roaster is closed, and may be made of elastic materials such as rubber, silicone, etc.

[0071] In at least one embodiment of the present invention, the functional cover 100 for an air circulation electric roaster further includes a tab 150 provided on a portion of the frame 110.

[0072] In the functional cover 100 for an air circulation electric roaster according to at least one embodiment of the present invention, the shape and position of the knob 150 are not particularly limited, and may be appropriately set in consideration of the overall design of the air circulation electric roaster and convenience in use.

[0073] In at least one embodiment of the present invention, the functional cover 100 for an air circulation electric roaster further includes a hinge pin 160 formed on a second side opposite the first side of the frame 110 along the first direction.

[0074] The functional cover 100 for air circulation type electric roaster having the above-mentioned structure can be used by placing it on the cooking space during cooking without a separate fixing structure, but by forming a hinge pin 160, the hinge pin 160 can be inserted into a hinge groove described below and fixed rotatably, making it easy to open and close the cooking space.

[0075] In at least one embodiment of the present invention, the functional cover 100 for an air circulation electric roaster further includes a flap portion 170 formed to extend downward from the inside of the second opening 140 at a predetermined angle (e.g., an angle of 90 degrees or less) relative to the surface direction of the window member 120.

[0076] In order to facilitate air circulation and prevent overheating or fire during the operation of an air circulation electric roaster that requires air intake and exhaust, a first opening 130 is formed on the air intake side and a second opening 140 is formed on the air exhaust side, and the width d1 of the first opening 130 is formed to be equal to or larger than the width d2 of the second opening 140. In order to circulate air more smoothly, the flap portion 170 may be formed by extending downward at a predetermined angle from the inside of the second opening 140 as shown in Fig. 5. In the example shown in Fig. 5, the flap portion 170 is inclined in a direction away from the center of the cover as it approaches its lower end.

[0077] In an air circulation electric roaster, when the internal fan is activated, air above the cooking plate is sucked in through the air intake of the air circulation plate, and the sucked in air passes through the bottom of the body and is exhausted through the air exhaust of the air circulation plate. At this time, some of the air exhausted through the air exhaust is sucked in again through the air intake, but the flap part 170 prevents too much of the air exhausted through the air exhaust from being sucked in through the air intake, and acts as a secondary safety device to prevent the risk of overheating due to heat building up inside.

[0078] Fig. 6 is a perspective view showing a form in which the functional cover 100 for an air-circulation electric roaster according to at least one embodiment of the present invention is hinged to the air-circulation electric roaster 200. Fig. 7 is a perspective view showing a state in which the functional cover 100 for an air-circulation electric roaster according to at least one embodiment of the present invention is hinged to the air-circulation electric roaster 200 to close the cooking space. Fig. 8 is a side view showing a state in which the functional cover 100 for an air-circulation electric roaster according to at least one embodiment of the present invention is hinged to the air-circulation electric roaster 200 to close the cooking space.

[0079] As shown in FIG. 6, in at least one embodiment of the present invention, the functional cover 100 for an air circulation electric roaster further includes a hinge frame 280 having a hinge groove 270 formed on one side into which the hinge pin 160 is rotatably inserted and a hinge frame 280 formed on the other side to be fixed to the body of the air circulation electric roaster 200.

[0080] The functional cover 100 for an air circulation type electric roaster can be detachably attached to the air circulation type electric roaster 200 by inserting the hinge pin 160 formed on one side along the first direction of the functional cover 100 for an air circulation type electric roaster into the hinge groove 270.

[0081] As shown in FIGS. 7 and 8, the hinge groove 270 is formed such that the distance between the frame 110 and the body 210 when the hinge pin 160 is inserted into the hinge groove 270 corresponds to the height (thickness) of the pad 180 .

[0082] That is, the pad 180 is spaced apart from the body of the air-circulation type electric roaster 200 by a distance h1 without sealing the cooking space when the functional cover 100 for air-circulation type electric roaster is closed, and the hinge groove 270 is spaced apart from the body of the air-circulation type electric roaster 200 by a distance h2 when the hinge pin 160 is inserted into the hinge groove 270.

[0083] The distance h1 and the distance h2 may be the same, or may be different from each other in consideration of the structure, function, etc. of the air circulation type electric roaster 200.

[0084] In the example shown in FIG. 6, a hinge structure is constructed by forming a hinge pin 160 on the functional cover 100 for an air circulation type electric roaster and forming a hinge groove 270 on the body 210 of the air circulation type electric roaster 200, but it is also possible to construct a hinge structure by forming a hinge groove on the functional cover 100 for an air circulation type electric roaster and forming a hinge pin on the body 210 of the air circulation type electric roaster 200 on the other hand.

[0085] FIG. 9 is a top view of a functional cover 900 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0086] As shown in Fig. 9, the functional cover 900 for air circulation type electric roaster according to at least one embodiment of the present invention further includes a third opening 990 formed in at least a part of one side along a second direction perpendicular to the first direction, in addition to the components of the functional cover 100 for air circulation type electric roaster shown in Fig. 4 and Fig. 5. As an example, the third opening 990 is formed at a position such that a part or the whole of the third opening 990 is located inside the entire area (gray area) seen from above the air circulation plate 250. The third opening 990 may be a through hole formed in the window member 120.

[0087] In an air circulation type electric roaster, when the internal fan is operated, air above the cooking plate is drawn in through the air intake part of the air circulation plate, and the drawn in air passes through the lower part of the body and is discharged through the air exhaust part of the air circulation plate. This circulation is repeated, but if the top of the cooking space is covered, the temperature of the cooking plate and inside rises, causing a risk of overheating. Therefore, by forming a third opening 990 on both or one side in the longitudinal direction, a part of the cooking space can be further exposed.

[0088] An air circulation electric roaster according to at least one embodiment of the present invention includes the functional cover 100 for the air circulation electric roaster described above.

[0089] The functional cover 100 for an air circulation type electric roaster having the above-mentioned structure can be used by attaching the hinge frame 280 to a conventional air circulation type electric roaster, but the hinge frame 280 can also be integrally formed with the body of the air circulation type electric roaster as follows.

[0090] That is, an air circulation type electric roaster according to at least one embodiment of the present invention includes at least a body 210, a heater 220 for generating heat, a fan 230 arranged inside the body 210 along a first direction of the body 210, a cooking plate 240 arranged on top of the heater 220 and heated by heat from the heater 220, an air circulation plate 250 including an air intake part 252 for drawing air above the cooking plate 240 into the body 210 and an air exhaust part 253 for exhausting air that has passed through the inside of the body 210 toward the top of the cooking plate 240, and a functional cover 100 for covering the cooking space above the cooking plate 240.

[0091] In at least one embodiment of the present invention, the functional cover 100 includes a frame 110 forming an overall appearance, a first opening 130 formed on the air intake side of the frame 110, a second opening 140 formed on the air exhaust side of the frame 110, a window member 120 made of a transparent heat-resistant material located in a space between the first opening 130 and the second opening 140 of the frame 110, at least one pad 180 provided on one side of the lower part of the frame 110 along the first direction, and a hinge pin 160 formed on a second side opposite the first side of the frame 110 along the first direction. The body 210 includes a hinge frame 280 having a hinge groove 270 formed on one side into which the hinge pin 160 is rotatably inserted and a hinge frame 280 formed integrally with the body 210 on the other side.

[0092] In at least one embodiment of the present invention, the first opening 130 is formed as an elongated opening having a length W1 along the first direction that corresponds to or is longer than the length of the air intake portion 252 and a predetermined width d1 on the inside based on the position of the air intake portion 252, and the second opening 140 is formed as an elongated opening having a length W2 along the first direction that corresponds to or is longer than the length of the air discharge portion 253 and a predetermined width d2 on the inside based on the air discharge portion 253.

[0093] In the above description, the functional cover for the air circulation electric roaster is shown to be composed of a plate-shaped frame and window members, but this is only one example of a functional cover for an air circulation electric roaster for the convenience of description, and the shape of the frame and window members is not limited to this. For example, the frame and window members can also be formed in a dome shape that bulges upward overall or an arch shape that includes the center with the longitudinal axis as its axis.

[0094] Furthermore, the positional relationship between the cooking plate 240 and the heater 220 shown in Figures 2 and 3 is merely one example for the purpose of explanation, and various structures for transferring heat generated from the heater to the cooking plate are applicable.

[0095] The functional cover 100 for an air circulation electric roaster shown in FIG. 5 shows an example in which a window member 120 made of a transparent heat-resistant material is formed in the space between the first opening 130 and the second opening 140 of the frame 110, but this is only one embodiment and the frame and window member can be configured in various forms.

[0096] FIG. 10 is a top view of a functional cover 1000 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0097] The functional cover 1000 for an air circulation type electric roaster shown in FIG. 10 is configured in such a manner that the outer periphery of a window member 1020 in which a first opening 1030 and a second opening 1040 are formed is surrounded by a frame 1010.

[0098] A hinge pin 1060 may be formed on one side of the frame 1010, and a tab 1050 may be provided on a portion of the window member 1020 or the frame 1010, if necessary.

[0099] FIG. 11 is a top view of a functional cover 1100 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0100] The functional cover 1000 for an air circulation type electric roaster shown in FIG. 10 has a form in which the entire outer periphery of the window member 1020 in which the first opening 1030 and the second opening 1040 are formed is surrounded by a frame 1010, while the functional cover 1100 for an air circulation type electric roaster shown in FIG. 11 can be made easier to manufacture by cutting out and opening at least the outer side of the opening on the side where the hinge structure is formed.

[0101] That is, the functional cover 1100 for an air circulation type electric roaster shown in FIG. 11 is configured in such a manner that the three outer sides of the window member 1120 in which the first opening 1130 and the second opening 1140 are formed, excluding the side in which the hinge pin 1160 is formed, are surrounded by a frame 1110.

[0102] A hinge pin 1160 may be formed on one side of the released frame 1110, and a tab 1150 may be provided on the window member 1120 or a portion of the frame 1110, if desired.

[0103] FIG. 12 is a top view of a functional cover 1200 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0104] The functional cover 1000 for air circulation type electric roaster shown in FIG. 10 and the functional cover 1100 for air circulation type electric roaster shown in FIG. 11 show a form in which the entire outer periphery of the window members 1020, 1120 in which the first openings 1030, 1130 and the second openings 1040, 1140 are formed or three sides excluding the side where the hinge pin is formed are surrounded by frames 1010, 1110, while the functional cover 11200 for air circulation type electric roaster shown in FIG. 12 has a frameless structure in which the entirety is formed of a window member 1220.

[0105] The functional cover 1200 for an air circulation type electric roaster is made entirely of a transparent heat-resistant material and functions as a frame while being a window member without a frame, and is formed with a first opening 1230 and a second opening 1240 in the transparent heat-resistant material and a knob 1250 is placed on one part of it.

[0106] A hinge pin 1260 is attached to one side of the functional cover 1200 for the air circulation electric roaster, which is entirely made of a transparent heat-resistant material.

[0107] FIG. 13 is a top view of a functional cover 1300 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0108] The functional cover 1300 for an air circulation type electric roaster shown in FIG. 13 is configured in such a manner that a window member 1320 made of a transparent heat-resistant material is surrounded on both sides by a separated frame 1310, and a first opening 1330 and a second opening 1340 are formed in the window member 1320.

[0109] In the example shown in FIG. 13, the first opening 1330 is formed so that the outside of the side where the hinge structure is formed is cut out and released.

[0110] FIG. 14 is a top view of a functional cover 1400 for an air circulating electric roaster in accordance with at least one embodiment of the present invention.

[0111] The functional cover 1400 for an air circulation type electric roaster shown in FIG. 14 is configured in such a manner that a separated frame 1410 is attached to the upper part of both sides of a window member 1420 made of a transparent heat-resistant material, and a first opening 1430 and a second opening 1440 are formed on the window member 1420.

[0112] In the example shown in FIG. 14, the first opening 1430 is formed so that the outside of the side where the hinge structure is formed is cut out and released.

[0113] In the above description, the functional cover for an air circulation electric roaster according to at least one embodiment of the present invention has been mainly described as being composed of a window member made of a transparent heat-resistant material and a frame surrounding at least a portion of the window member. However, it may also be composed of a single member made of PET, PBT, composite PP, uncolored glass material (for boiling water), or metal (stainless steel or aluminum) material without a frame, or a single member made of a transparent heat-resistant material.

[0114] In other words, as long as a functional cover is formed by forming a first opening on the air intake side and a second opening on the air exhaust side to prevent overheating of the lower part during cooking and keep the temperature of the cooking plate high, there are no particular limitations on the materials that make up the cover, the transparent window member, the frame, etc.

[0115] As described above, the functional cover for an air circulation type electric roaster according to at least one embodiment of the present invention is a functional cover for an air circulation type electric roaster comprising a body, a heater for generating heat, at least one fan arranged inside the body along a first direction of the body, a cooking plate heated by heat from the heater, an air intake part for drawing air above the cooking plate into the body, and an air exhaust part for discharging air that has passed inside the body to the outside, and can be configured to be applicable to any type of air circulation type electric roaster having a structure that draws air above the cooking plate into the body by operation of the fan and discharges air that has passed inside the body to the outside.

[0116] For this purpose, the functional cover for an air circulation electric roaster according to at least one embodiment of the present invention has at least a first opening formed on the air intake side and having a length corresponding to the length of the air intake side along a first direction, and a second opening formed on the air exhaust side and having a length corresponding to the length of the air exhaust side along the first direction, and the widths of the first opening and the second opening can be configured to be equal to each other or different.

[0117] Fig. 15 is a graph showing the change in temperature of the cooking plate and the oil receiving part when the width of the first opening is changed while the width of the second opening of the functional cover for the air circulation electric roaster in accordance with at least one embodiment of the present invention is fixed. Fig. 16 is a graph showing the change in temperature of the cooking plate and the oil receiving part when the width of the second opening is changed while the width of the first opening of the functional cover for the air circulation electric roaster in accordance with at least one embodiment of the present invention is fixed.

[0118] The air circulation electric roaster used in the experiment has an air intake and an air exhaust with dimensions of about 329.0mm x 23.5mm, and the air intake and exhaust are spaced apart by about 248.6mm to form a cooking space. The functional cover for this purpose is about 427.5mm x 311.5mm in size, with the first opening length W1 being about 320.1mm and the second opening length W2 being about 319.4mm.

[0119] The fan used in this air circulation electric roaster is a Class A long fan driven by DC12V, 0.25A, with a rotation speed set to 3,500 rpm during operation.

[0120] The width d1 of the first opening of the functional cover for the air circulation electric roaster was changed to 25.0 mm, 30.0 mm, and 35.0 mm while the width d2 of the second opening was fixed at 20.0 mm, and the width d2 of the second opening was changed to 15.0 mm, 20.0 mm, and 25.0 mm while the width d1 of the first opening was fixed at 35.0 mm, and the temperatures of the cooking plate and the oil receiving part were measured.

[0121] As shown in Figure 15, when the width d1 of the first opening was changed to 25.0 mm, 30.0 mm, and 35.0 mm while the width d2 of the second opening was fixed at 20.0 mm, the temperature of the cooking plate changed to 308.7°C, 300.0°C, and 302.6°C, and the temperature of the oil receiving area changed to 121.6°C, 118.4°C, and 118.1°C.

[0122] As shown in Figure 16, when the width d1 of the first opening was fixed at 35.0 mm and the width d2 of the second opening was changed to 15.0 mm, 20.0 mm, and 25.0 mm, the temperature of the cooking plate changed to 305.3°C, 302.6°C, and 301.1°C, and the temperature of the oil receiving area changed to 122.2°C, 118.1°C, and 118.2°C.

[0123] In an air circulation electric roaster, if the cooking space is covered when the internal fan is operating, it affects the air circulation and the internal temperature rises, and one of the parts that is most affected by this is the oil pan.

[0124] The oil receiving part is made of a composite PP material with improved heat resistance by bonding glass fiber, and its physical property (thermal deformation) temperature in use is about 140.0℃. Therefore, in this experiment, the temperature of the cooking plate is set to 230℃, and the purpose is to find a combination of d1 and d2 that keeps the temperature of the oil receiving part below 120.0℃ while keeping the temperature of the cooking plate high by supplying power to the heater with nothing placed on the cooking plate.

[0125] In the example shown in Figure 15, when the width d1 of the first opening was changed to 25.0 mm, 30.0 mm, and 35.0 mm, the temperature of the cooking plate changed to 308.7°C, 300.0°C, and 302.6°C, and the temperature of the oil receiving area changed to 121.6°C, 118.4°C, and 118.1°C, so it can be said that a width d1 of 30.0 mm or 35.0 mm is appropriate.

[0126] In the example shown in Figure 16, when the width d2 of the second opening was changed to 15.0 mm, 20.0 mm, and 25.0 mm, the temperature of the cooking plate changed to 305.3°C, 302.6°C, and 301.1°C, and the temperature of the oil receiving area changed to 122.2°C, 118.1°C, and 118.2°C, so it can be said that a width d2 of 20.0 mm or 25.0 mm is appropriate.

[0127] Through these experiments, a functional cover was created with the width d1 of the first opening set to 35.0 mm and the width d2 of the second opening set to 20.0 mm. When this functional cover was applied to a commercial air-circulating electric roaster, it was confirmed that the temperature of the cooking plate rose more at the same temperature setting, the oven effect of the cover reduced the cooking time for meat by about 30%, and the excellent Maillard reaction resulted in a crispy outside and soft, juicy inside.

[0128] In this way, by using the functional cover according to at least one embodiment of the present invention, it is possible to prevent oil from splashing around when cooking using an air circulation electric roaster, further suppress the generation of odor, and cook at high heat in a shorter time, providing an environment in which the Maillard reaction can easily occur.

[0129] As described above, according to at least one embodiment of the present invention, a functional cover for an air circulation type electric roaster can be provided, which can prevent overheating of the lower part during cooking while maintaining a high temperature of the cooking plate.

[0130] Furthermore, according to at least one embodiment of the present invention, a functional cover for an air circulation type electric roaster can be provided, which can prevent overheating of the lower part during cooking, maintain the temperature of the cooking plate at a high temperature, and prevent oil from splashing to the outside.

[0131] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is clear to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the description of the claims that such modifications and improvements can also be included in the technical scope of the present invention. [Explanation of symbols]

[0132] 100, 900, 1000, 1100, 1200, 1300, 1400: Functional covers for electric roasters with air circulation 110, 1010, 1110, 1310, 1410: Frame 120, 1020, 1120, 1220, 1320, 1420: Window materials 130, 1030, 1130, 1240, 1340, 1440: 1st opening 140, 1040, 1140, 1240, 1340, 1440: 2nd opening 150, 1050, 1150, 1250, 1350, 1450: Knob 160, 1060, 1160, 1260, 1360, 1460: Hinge pin 170: Flap section 180: Pad 200: Air circulation electric roaster 210: Body 220:Heater 230: Fan 240: Cooking board 241: First through hole 250: Air circulation board 251: Second through hole 252: Air intake section 253: Air exhaust section 260: Oil receiving part 270: Hinge groove 280: Hinge frame 990: Third opening

Claims

1. A functional cover for an air circulation type electric roaster, comprising: a body; a heater for generating heat; at least one fan disposed inside the body along a first direction of the body; a cooking plate heated by heat from the heater; an air intake part for drawing air above the cooking plate into the body; and an air exhaust part for exhausting air that has passed through the inside of the body to the outside, A first opening formed on the air intake portion side; A second opening formed on the air exhaust portion side; Equipped with the first opening is formed as an elongated opening having a length corresponding to a length of the air suction portion along the first direction and a predetermined width on the inside based on a position of the air suction portion, The second opening is formed as an elongated opening having a length corresponding to a length of the air exhaust portion along the first direction and a predetermined width on the inside based on a position of the air exhaust portion. Functional cover for electric roasters with air circulation.

2. and at least one pad provided on a first side of the lower portion along the first direction. A functional cover for the air circulation electric roaster according to claim 1.

3. a hinge pin formed on a second side opposite to the first side along the first direction, A functional cover for the air circulation electric roaster according to claim 2.

4. a hinge frame having a hinge groove on one side into which the hinge pin is rotatably inserted and a hinge frame formed on the other side to be fixed to the body; The hinge groove is formed to have a height from the body equivalent to a thickness of the pad. A functional cover for the air circulation electric roaster according to claim 3.

5. The container further includes a flap portion formed to extend downward at a predetermined angle from an inner side of at least one of the first opening and the second opening. A functional cover for the air circulation electric roaster according to claim 1.

6. The first opening is formed to be open to the outside. A functional cover for the air circulation electric roaster according to claim 1.

7. The width of the first opening is equal to the width of the second opening. A functional cover for the air circulation electric roaster according to claim 1.

8. The width of the first opening is different from the width of the second opening. A functional cover for the air circulation electric roaster according to claim 1.

9. An air circulation electric roaster, comprising a functional cover for an air circulation electric roaster according to any one of claims 1 to 8.

10. Body and a heater for generating heat; a fan disposed inside the body along a first direction of the body; a cooking plate heated by the heat from the heater; an air intake section for drawing air above the cooking plate into the body; an air exhaust portion for exhausting air that has passed through the inside of the body to the outside; A functional cover for covering the cooking space above the cooking plate; Equipped with The functional cover has a first opening formed on the air intake side and a second opening formed on the air exhaust side, the first opening is formed as an elongated opening having a length corresponding to a length of the air suction portion along the first direction and a predetermined width on the inside based on a position of the air suction portion, The second opening is formed as an elongated opening having a length corresponding to a length of the air exhaust portion along the first direction and a predetermined width on the inside based on a position of the air exhaust portion. Air circulation electric roaster.

11. The functional cover includes at least one pad provided on a first side of a lower portion along the first direction.

11. The air circulation electric roaster of claim 10.

12. The functional cover further includes a hinge pin formed on a second side opposite to the first side along the first direction, the body includes a hinge groove in which the hinge pin is rotatably inserted at one side, and a hinge frame formed to be fixed to the body at the other side; The hinge groove is formed to have a height from the body equivalent to a thickness of the pad.

12. The air circulation electric roaster of claim 11.

13. The functional cover includes a flap portion formed to extend downward at a predetermined angle from an inner side of at least one of the first opening and the second opening.

11. The air circulation electric roaster of claim 10.

14. The first opening is formed to be open to the outside.

11. The air circulation electric roaster of claim 10.

15. The width of the first opening is equal to the width of the second opening.

11. The air circulation electric roaster of claim 10.

16. The width of the first opening is different from the width of the second opening.

11. The air circulation electric roaster of claim 10.

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