Electric grill with double air curtain type dual air purification circulation system

Abstract

The present invention relates to an electric grill equipped with a double air curtain type air purification circulation system, characterized in that a partition wall is formed on each side wall of the grill body, bending from the upper end into a "U" shape by a second flow redirecting part and extending downward, a plurality of third and fourth exhaust holes are formed in the partition wall on each side wall, and a first flow redirecting part is formed protruding from below the third and fourth exhaust holes toward the inside of the grill, and air discharged from the first and second intake fans is separated by the first flow redirecting part into an air flow discharged from the first and second exhaust holes and an air flow discharged from the third and fourth exhaust holes by the second flow redirecting part, and the air flow discharged from the third and fourth exhaust holes is located above the air flow discharged from the first and second exhaust holes, forming a double air curtain.

Description

Technical Field

[0001] The present invention relates to an electric grill, and more particularly to an electric grill provided with an air purification circulation system capable of removing oil vapor and smoke generated during cooking of food and drink.

Background Art

[0002] Generally, in homes, restaurants, etc., an electric grill is provided that includes a grill having a number of oil drainage holes formed therein, and an oil receiver provided below the grill for receiving the oil that falls from the oil drainage holes.

[0003] When such an electric grill grills meat, the oil generated is discharged through the oil drainage holes of the grill to the lower oil receiver, but a relatively large amount of oil scatters outside and contaminates the periphery of the electric grill. There is also a problem that the smell and smoke generated when grilling meat diffuse into the room and pollute the indoor air. When grilling meat, the heat of the grill is released into the room, which prolongs the time for grilling meat and increases the power consumption thereby.

[0004] To solve these problems, referring to Figure 1, the inventors have provided a first intake fan 121 and a second intake fan 122 located on both sides of the lower space of the grill body 100, flanking an oil tray 110 located below the oil drain nozzle 171 of the grill plate 170. The first intake fan 121 draws in air containing oil vapor, smoke, hot air, and odor generated at the top of the grill plate 170 through the oil drain nozzle 171 and supplies it back to the top of the grill plate 170 through the first discharge hole 153 of the heat dissipation plate 150, thereby forming a first air circulation flow. The second intake fan 122 draws in air containing oil vapor, smoke, hot air, and odor generated at the top of the grill plate 170. We have developed and filed a patent application for an electric grill equipped with an air purification circulation system, characterized in that air containing oil vapor, smoke, hot air, and odors discharged from the oil drain nozzle 171 is drawn in through the oil drain nozzle 171 and supplied again to the upper part of the grill plate 170 through the second discharge hole 154 of the heat sink plate 150 to form a second air circulation flow, and the air containing oil vapor, smoke, hot air, and odors discharged from the oil drain nozzle 171 comes into contact with water stored in the oil receiver 110 located below the oil drain nozzle 171 to be purified, and then flows into the first intake fan 121 and the second intake fan 122 due to the suction power of the first intake fan 121 and the second intake fan 122 (see "Patent Document 1" below).

[0005] However, in the conventional electric grill disclosed in "Patent Document 1," as shown by the black arrows in Figure 1, the air supplied to the upper part of the grill plate 170 through the first discharge holes 153 and the second discharge holes 154 of the heat dissipation plate 150 collides with each other above the oil discharge nozzle 171 of the grill plate 170, and then, instead of being completely drawn into the oil discharge nozzle 171 of the grill plate 170, diffuses to the outside of the grill body 100. As a result, the odor and smoke generated when grilling meat diffuse into the room, causing the indoor air to become polluted. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Korean Patent Publication No. 10-2273131B1 [Overview of the project] [Problems that the invention aims to solve]

[0007] The present invention was devised to solve the above-mentioned problems, and the object of the present invention is to provide an electric grill equipped with a double air curtain type air purification circulation system that can completely prevent the phenomenon of air containing oil vapor, smoke, heat, and odor generated when grilling meat from diffusing to the outside of the grill body. [Means for solving the problem]

[0008] To solve the above-mentioned problems, the electric grill equipped with a double air curtain type air purification circulation system according to the present invention comprises a grill body, an oil tray for storing water provided inside the lower part of the grill body, intake fans positioned on both sides of the oil tray, a heat dissipation plate coupled spaced above the oil tray and intake fans, with a through hole formed in the longitudinal direction in the center of the bottom plate, and numerous first and second discharge holes formed on the side plates located spaced apart from the side walls of the grill body, and the above The suction fan includes a grill plate provided spaced apart above the bottom plate of the heat sink plate, with an oil drain nozzle formed in the center along its longitudinal direction, and the suction fan includes a first suction fan and a second suction fan located on both sides of the lower space of the grill body, flanking the oil tray located below the oil drain nozzle, the first suction fan draws in air containing oil vapor, smoke, hot air and odor generated at the top of the grill plate through the oil drain nozzle and supplies it back to the top of the grill plate through a first discharge hole in the heat sink plate to form a first air circulation flow, and the second suction fan draws in air containing oil vapor, smoke, hot air and odor generated at the top of the grill plate through the oil drain nozzle and supplies it back to the top of the grill plate, the second suction fan An electric grill equipped with an air purification circulation system, wherein air containing oil vapor, smoke, hot air, and odor generated at the top of the plate is drawn in through the oil drain nozzle and supplied back to the top of the grill plate through the second discharge hole of the heat dissipation plate to form a second air circulation flow, and the air containing oil vapor, smoke, hot air, and odor discharged from the oil drain nozzle comes into contact with water stored in the oil tray located below the oil drain nozzle to be purified, and then flows into the first and second intake fans, on both sides of the grill body Each wall has a partition wall formed at its upper end that bends in a "U" shape and extends downward by a second flow conversion section, and a number of third and fourth discharge holes are formed in the partition walls on both sides, and a first flow conversion section is formed below the third and fourth discharge holes that protrudes toward the interior of the grill body, and the third and fourth discharge holes of the partition wall are located spaced apart above the first and second discharge holes of the heat dissipation plate, and the partition wall is located between the side walls of the grill body and the side plates of the heat dissipation plate, so that the air discharged from the first intake fan and the second intake fan isThe first flow conversion section divides the airflow discharged from the first and second discharge holes into two separate airflows: one discharged from the first and second discharge holes, and the second flow conversion section divides the airflow discharged from the third and fourth discharge holes into two separate airflows. The airflow discharged from the third and fourth discharge holes is located above the airflow discharged from the first and second discharge holes, forming an airflow in the same direction and creating a double air curtain. The first flow diversion section and the second flow diversion section may be formed by horizontal walls or by walls that are inclined downward toward the interior of the grill body.

[0009] The ratio of the airflow rate discharged from the first and second discharge holes to the airflow rate discharged from the third and fourth discharge holes can be adjusted by the ratio of the distance between the partition wall and the side plate of the heat sink and the distance between the partition wall and the side wall of the grill body.

[0010] The ratio of the airflow rate discharged from the first and second discharge holes to the airflow rate discharged from the third and fourth discharge holes can be adjusted by the ratio of the sizes of the first and second discharge holes to the sizes of the third and fourth discharge holes.

[0011] Preferably, the side wall of the grill body includes a lower side wall formed to be inclined toward the outside of the grill body and an upper side wall formed to be inclined toward the inside of the grill body. [Effects of the Invention]

[0012] The electric grill equipped with the double air curtain type air purification circulation system according to the present invention completely blocks the phenomenon of air containing oil vapor, smoke, hot air, and odors generated above the grill plate diffusing to the outside of the grill body by forming a double airflow above the grill plate, and firmly forms the first air circulation flow and the second air circulation flow by the first intake fan and the second intake fan. [Brief explanation of the drawing]

[0013] [Figure 1]This is a cross-sectional view showing the air circulation flow of a conventional electric grill. [Figure 2] This is a cross-sectional view showing the air circulation flow of an electric grill equipped with a double air curtain type air purification circulation system according to the present invention. [Figure 3] This is a partial cross-sectional view showing an enlarged view of section "C" in Figure 2. [Modes for carrying out the invention]

[0014] The following describes in detail an electric grille equipped with a double air curtain type air purification circulation system according to the present invention, based on the accompanying drawings. However, detailed descriptions of known functions and configurations that may unnecessarily obscure the gist of the present invention are omitted. Figure 2 is a cross-sectional view showing the air circulation flow of an electric grill equipped with a double air curtain type air purification circulation system according to the present invention.

[0015] Referring to Figure 2, the electric grill equipped with a double air curtain type air purification circulation system according to the present invention includes a grill body 100, an oil tray 110 for storing water provided inside the lower part of the grill body 100, intake fans 121 and 122 located on both sides of the oil tray 110, a heat sink 150 spaced apart and coupled above the oil tray 110 and the intake fans 121 and 122, a grill plate 170 spaced apart above the heat sink 150, and a heater 161 located below the grill plate 170. The grill plate 170 has an oil drain nozzle 171 formed in the center along its longitudinal direction.

[0016] In this invention, the oil drain nozzle 171 not only ensures that oil generated during cooking collects in the center of the grill plate 170 and is discharged to the oil tray 110 below, but also, as will be described later, ensures that air containing oil vapor, smoke, hot air, and odors generated at the top of the grill plate 170 is discharged toward the oil tray 110 located below the oil drain nozzle 171.

[0017] The heat dissipation plate 150 has a through hole 157 formed longitudinally at the center of the bottom plate 155, and the oil discharge nozzle 171 of the grill plate 170 penetrates and is coupled thereto. Thus, by separating the upper space where the heater 161 is located from the lower space where the suction fans 121 and 122 are located, the suction fans 121 and 122 are not damaged by the heat generated from the heater 161.

[0018] Further, the heat dissipation plate 150 has a number of first discharge holes 153 and second discharge holes 154 formed in both side plates 151 and 152 in the longitudinal direction around the upper part, respectively, so that the air blown by the suction fans 121 and 122 is supplied to the upper part of the grill plate 170 to form an air curtain (see arrow "A" in FIG. 2). The types of the suction fans 121 and 122 are not particularly limited, but long fans are more suitable for forming a uniform air curtain above the grill plate 170.

[0019] In the present invention, the suction fans 121 and 122 include a first suction fan 121 and a second suction fan 122 located on both sides of the lower space of the grill body 100 with the oil receiver 110 located below the oil discharge nozzle 171 interposed therebetween.

[0020] Therefore, the first suction fan 121 sucks the air containing oil vapor, smoke, hot air, and odor generated above the grill plate 170 through the oil discharge nozzle 171 and supplies it again to the upper part of the grill plate 170 through the first discharge hole 153 of the heat dissipation plate 150 to form a first air circulation flow. At the same time, the second suction fan 122 sucks the air containing oil vapor, smoke, hot air, and odor generated above the grill plate 170 through the oil discharge nozzle 171 and supplies it again to the upper part of the grill plate 170 through the second discharge hole 154 of the heat dissipation plate 150 to form a second air circulation flow.

[0021] Here, due to the suction force of the first suction fan 121 and the second suction fan 122, the air containing oil vapor, smoke, hot air, and odor discharged from the oil drain nozzle 171 heads towards the oil receiver 110 located below the oil drain nozzle 171, contacts the water W stored in the oil receiver 110 and is purified, and then flows into the first suction fan 121 and the second suction fan 122. For reference, in FIG. 2, the color of the arrow indicates the degree of air purification (the blacker it is, the more polluted the air is).

[0022] On the other hand, in the present invention, both side walls 101 and 102 of the grill main body 100 have an overall curved shape such that the middle part protrudes outward. For this reason, the lower side walls 181 of both side walls 101 and 102 are formed to incline towards the outside of the grill main body 100, and the upper side walls 182 are formed to incline towards the inside of the grill main body 100. The curved shape of both side walls 101 and 102 reduces the generation of local vortices, reduces the flow resistance and flow noise, and enables the first air circulation flow and the second air circulation flow to be formed more smoothly.

[0023] Partition walls 183 that are folded in a "U" shape from the upper ends of the upper side walls 182 and extend downward are formed on both side walls 101 and 102 of the grill main body 100. A number of third discharge holes 184 and fourth discharge holes 185 are respectively formed in the partition walls 183 of both side walls 101 and 102, and a first flow conversion part 186 that protrudes towards the grill plate 170 side is formed below the third discharge holes 184 and the fourth discharge holes 185. And the upper ends of the upper side walls 182 and the partition walls 183 are connected to the second flow conversion part 187. The first flow conversion part 186 and the second flow conversion part 187 can be formed of a horizontal wall or a wall that inclines downward towards the grill plate 170 side.

[0024] On the upper surface of the first flow conversion part 186, flanges 158 formed by folding outward from the upper ends of both side plates 151 and 152 of the heat dissipation plate 150 are located. Thus, the third discharge holes 184 and the fourth discharge holes 185 of the partition wall 183 are located above the first discharge hole 153 and the second discharge hole 154 of the heat dissipation plate 150.

[0025] Furthermore, the partition wall 183 is located between the upper side wall 182 and the side plates 151 and 152 of the heat sink 150. Thus, the air discharged from the first intake fan 121 and the second intake fan 122 is divided by the first flow conversion unit 186 into airflow A discharged to the first discharge holes 153 and 2 discharge holes 154, and airflow B discharged to the third discharge holes 184 and 4 discharge holes 185 by the second flow conversion unit 187. Airflow B discharged to the third discharge holes 184 and 4 discharge holes 185 is located above airflow A discharged to the first discharge holes 153 and 2 discharge holes 154, forming a double air curtain (see arrow "B" in Figure 2).

[0026] Therefore, the air supplied to the upper part of the grill plate 170 through the first discharge hole 153 and the second discharge hole 154 collides with each other at the top of the oil discharge nozzle 171 of the grill plate 170, and the flow that diffuses to the outside of the grill body 100 is blocked by the airflow B1 discharged from the third discharge hole 184 and the fourth discharge hole 185, and together with the airflow B1 discharged from the third discharge hole 184 and the fourth discharge hole 185, it is all drawn into the oil discharge nozzle 171 of the grill plate 170.

[0027] Here, the air supplied to the top of the grill plate 170 through the third discharge hole 184 and the fourth discharge hole 185 collides with each other at the top of the oil discharge nozzle 171 of the grill plate 170, and a flow B2 is also generated that diffuses to the outside of the grill body 100. However, since this airflow B2 contains only purified air, the problem of odors and smoke generated when grilling meat diffusing into the room and polluting the indoor air is avoided.

[0028] Furthermore, since a portion of the air discharged from the first intake fan 121 and the second intake fan 122 is supplied to the upper part of the grill plate 170 through the third discharge hole 184 and the fourth discharge hole 185, the air flow rate discharged from the first discharge hole 153 and the second discharge hole 154 becomes less than the air flow rate discharged from the first intake fan 121 and the second intake fan 122. This reduces the possibility of the air supplied to the upper part of the grill plate 170 through the first discharge hole 153 and the second discharge hole 154 colliding with each other at the top of the oil discharge nozzle 171 of the grill plate 170 and generating turbulence. As a result, the suction force that draws the oil discharge nozzle 171 of the grill plate 170 increases, and the first and second air circulation flows are firmly formed.

[0029] The ratio of the flow rate of airflow A discharged from the first discharge port 153 and the second discharge port 154 to the flow rate of airflow B discharged from the third discharge port 184 and the fourth discharge port 185 can be adjusted not only by the ratio of the sizes of the first and second discharge ports 153 and 154 to the third and fourth discharge ports 184 and 185, but also by the ratio of the distance D1 between the partition wall 183 and the side plates 151 and 152 to the distance D2 between the partition wall 183 and the upper side wall 182 (see Figure 3).

[0030] The ratio of the flow rate of airflow A discharged from the first discharge port 153 and the second discharge port 154 to the flow rate of airflow B discharged from the third discharge port 184 and the fourth discharge port 185 is preferably in the range of 9:1 to 7:3. If the flow rate ratio exceeds 9:1, the effect of the double air curtain according to the present invention cannot be obtained, and if it is less than 7:3, the first and second air circulation flows weaken and the purification efficiency decreases.

[0031] According to the electric grill equipped with the double air curtain type air purification circulation system of the present invention as described above, by forming a double airflow above the grill plate 170, the phenomenon of air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 diffusing to the outside of the grill body 100 is completely blocked, and the first air circulation flow and the second air circulation flow by the first intake fan 121 and the second intake fan 122 can be firmly formed.

[0032] The embodiments disclosed herein and in the accompanying drawings are used solely for the purpose of illustrating the technical idea of ​​the present invention and are not intended to limit the scope of the invention as defined in the claims. Therefore, a person with ordinary skill in the art of the present invention will understand that a variety of modifications and equivalent other embodiments are possible. [Explanation of symbols]

[0033] 100 Grill Body 101, 102 side wall 110 Oil tray 121 First Intake Fan 122 Second Intake Fan 150 Heat sink 151, 152 Side panels 153 1st discharge hole 154 2nd discharge hole 155 Bottom plate 157 Through hole 158 Flange 161 Heater 170 Grill Plate 171 Oil drain nozzle 181 Lower side wall 182 Upper side wall 183 Bulkhead 184 3rd discharge hole 185 4th discharge hole 186 First flow conversion section 187 Second flow change section

Claims

1. The grill body and An oil tray for storing water is provided inside the lower part of the grill body, Intake fans are arranged on both sides of the oil tray, A heat dissipation plate is coupled to the upper side of the oil tray and intake fan at a distance from each other, with a through hole formed in the center of the bottom plate along the longitudinal direction, and numerous first and second discharge holes formed on the side plates located at a distance from the side walls of the grill body, The grill plate is provided spaced apart above the bottom plate of the heat sink so as to be located above the first and second discharge holes of the heat sink, and has an oil discharge nozzle formed in the center along its longitudinal direction, The intake fan includes a first intake fan and a second intake fan located on both sides of the lower space of the grill body, with the oil tray located below the oil discharge nozzle in between. The first intake fan draws in air containing oil vapor, smoke, hot air, and odor generated at the top of the grill plate through the oil discharge nozzle and supplies it back to the top of the grill plate through the first discharge hole of the heat dissipation plate, thereby forming a first air circulation flow. The second intake fan draws in air containing oil vapor, smoke, hot air, and odor generated at the top of the grill plate through the oil discharge nozzle and supplies it back to the top of the grill plate through the second discharge hole of the heat dissipation plate, thereby forming a second air circulation flow. An electric grill equipped with an air purification circulation system, wherein the air containing oil vapor, smoke, hot air, and odor discharged from the oil discharge nozzle by the suction force of the first and second intake fans comes into contact with water stored in the oil tray located below the oil discharge nozzle to be purified, and then flows into the first and second intake fans, On both side walls of the grill body, partition walls are formed that extend downward from the upper end, bending in a "U" shape at the second flow conversion section. Numerous third and fourth discharge holes are formed in the partition walls of the aforementioned side walls, and a first flow conversion section is formed below the third and fourth discharge holes, projecting toward the interior of the grill body. An electric grill equipped with a double air curtain type air purification circulation system, characterized in that the third and fourth discharge holes of the partition wall are located spaced apart above the first and second discharge holes of the heat sink plate, and the partition wall is located between the side walls of the grill body and the side plates of the heat sink plate, so that the air discharged from the first and second intake fans is divided by the first flow conversion unit into an airflow discharged from the first and second discharge holes and an airflow discharged from the third and fourth discharge holes by the second flow conversion unit, and the airflow discharged from the third and fourth discharge holes is located above the airflow discharged from the first and second discharge holes, forming an airflow in the same direction and creating a double air curtain.

2. An electric grill equipped with a double air curtain type air purification circulation system according to claim 1, characterized in that the first flow conversion section and the second flow conversion section are formed of horizontal walls or walls that are inclined downward toward the interior of the grill body.

3. An electric grill equipped with a double air curtain type air purification circulation system according to claim 1, characterized in that the ratio of the flow rate of the airflow discharged from the first and second discharge holes to the flow rate of the airflow discharged from the third and fourth discharge holes is adjusted by the ratio of the distance between the partition wall and the side plate of the heat sink and the distance between the partition wall and the side wall of the grill body.

4. An electric grill equipped with a double air curtain type air purification circulation system according to claim 1, characterized in that the ratio of the flow rate of the airflow discharged from the first and second discharge holes to the flow rate of the airflow discharged from the third and fourth discharge holes is adjusted by the ratio of the sizes of the first and second discharge holes to the sizes of the third and fourth discharge holes.

5. The electric grill equipped with a double air curtain type air purification circulation system according to claim 1, characterized in that the side wall of the grill body includes a lower side wall formed to be inclined toward the outside of the grill body and an upper side wall formed to be inclined toward the inside of the grill body.

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