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 equipped with an air purification circulation system that can remove oil vapor and smoke generated during cooking of food. [Background technology]

[0002] Generally, homes, restaurants, and the like are equipped with electric grills that include a grill with multiple oil drain holes and an oil pan located below the grill to collect oil that drips through the oil drain holes.

[0003] In such electric grills, the oil generated when grilling meat is discharged through the grill's oil drain hole into a pan at the bottom, but a relatively large amount of oil splashes outside, contaminating the area around the electric grill. The smell and smoke generated when grilling meat also spreads indoors, polluting the air inside the room. When grilling meat, heat from the grill is released into the room, extending the cooking time and resulting in increased power consumption.

[0004] In order to solve this problem, referring to FIG. 1, the present inventor has proposed a method for manufacturing a grill body 100 having a first suction fan 121 and a second suction fan 122, which are located on both sides of a lower space of the grill body 100 across an oil pan 110 located below an oil drain nozzle 171 of a grill plate 170. The first suction fan 121 draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 through the oil drain nozzle 171 and supplies the air to the upper part of the grill plate 170 again through a first discharge hole 153 of a heat sink 150, thereby forming a first air circulation flow. The second suction fan 122 draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 through the first discharge hole 153 of a heat sink 150. The air containing oil vapor, smoke, hot air, and odor discharged from the oil drain nozzle 171 by the suction force of the first suction fan 121 and the second suction fan 122 is purified by contacting with water stored in the oil pan 110 located below the oil drain nozzle 171, and then flows into the first suction fan 121 and the second suction fan 122. ... inventors have developed an electric grill with an air purification circulation system, which has been applied for and patented (see Patent Document 1 below).

[0005] However, in the conventional electric grill disclosed in Patent Document 1, as shown by the black arrows in FIG. 1, air supplied to the upper part of the grill plate 170 through the first exhaust hole 153 and the second exhaust hole 154 of the heat sink 150 collides with each other above the oil drain nozzle 171 of the grill plate 170, and then diffuses outside the grill body 100 without being completely sucked into the oil drain nozzle 171 of the grill plate 170. As a result, there remains a problem that the smell and smoke generated when grilling meat diffuses into the room, polluting the air inside the room. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent No. 10-2273131B1 Summary of the Invention [Problem to be solved by the invention]

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

[0008] The electric grill with a double air curtain type air purification circulation system according to the present invention for solving the above problems includes a grill body, an oil pan provided inside a lower portion of the grill body and storing water, intake fans provided on both sides of the oil pan, a heat sink coupled to the oil pan and the intake fan at a distance from each other and having a through hole formed in the center of the bottom plate along a longitudinal direction, and a plurality of first and second exhaust holes formed in side plates spaced apart from both side walls of the grill body, and a plurality of first and second exhaust holes formed in the side plates, respectively, and a plurality of second exhaust holes formed in the side plates spaced apart from each other and positioned above the first and second exhaust holes of the heat sink. a grill plate provided above the bottom plate of the heat dissipation plate at a distance and having an oil drain nozzle formed in the center along the longitudinal direction, the suction fans including a first suction fan and a second suction fan positioned on both sides of the lower space of the grill body across the oil pan positioned below the oil drain nozzle, the first suction fan sucks air containing oil vapor, smoke, hot air and odor generated above the grill plate through the oil drain nozzle and supplies it back to the upper part of the grill plate through a first discharge hole of the heat dissipation plate, thereby forming a first air circulation flow, and the second suction fan sucks air containing oil vapor, smoke, hot air and odor generated above the grill plate through the oil drain nozzle and supplies it back to the upper part of the grill plate through a first discharge hole of the heat dissipation plate, 1. An electric grill equipped with an air purification circulation system, in which air containing oil vapor, smoke, hot air, and odors generated above the plate is sucked through the oil drain nozzle and supplied to the upper part of the grill plate again through the second exhaust hole of the heat dissipation plate, thereby forming a second air circulation flow, and the air containing oil vapor, smoke, hot air, and odors discharged from the oil drain nozzle by the suction force of the first and second suction fans comes into contact with water stored in the oil pan located below the oil drain nozzle, is purified, and then flows into the first and second suction fans, The walls are each formed with a partition bent in a "U" shape from an upper end by a second flow redirecting portion and extending downward, a plurality of third and fourth exhaust holes are formed in the partitions of the side walls, and a first flow redirecting portion is formed below the third and fourth exhaust holes and protruding toward the inside of the grill body, the third and fourth exhaust holes of the partition are located above the first and second exhaust holes of the heat sink, and the partition is located between the side walls of the grill body and the side plates of the heat sink, so that the air discharged from the first and second intake fansThe first flow redirecting unit separates the airflow discharged from the first and second discharge holes from the airflow discharged from the third and fourth discharge holes by the second flow redirecting unit, and the airflow discharged from the third and fourth discharge holes is positioned above the airflow discharged from the first and second discharge holes to form an airflow in the same direction, thereby forming a double air curtain. The first and second flow redirecting portions may be formed as horizontal walls or as walls that slope downward toward the inside of the grill body.

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

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

[0011] Preferably, the side walls of the grill body include 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 forms double airflows above the grill plate, completely preventing the air containing oil vapor, smoke, hot air, and odors generated above the grill plate from diffusing outside the grill body, and also firmly forms first and second air circulation flows by the first and second intake fans. [Brief explanation of the drawings]

[0013] [Figure 1]1 is a cross-sectional view showing the air circulation flow of a prior art electric grill. [Figure 2] FIG. 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. [Figure 3] FIG. 3 is an enlarged partial cross-sectional view of part "C" in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an electric grill equipped with a double air curtain type air purification and circulation system according to the present invention will be described in detail with reference to the accompanying drawings, but detailed description of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. FIG. 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 FIG. 2, the electric grill with a double air curtain type air purification circulation system according to the present invention includes a grill body 100, an oil pan 110 for storing water and installed inside the lower part of the grill body 100, suction fans 121 and 122 installed on both sides of the oil pan 110, a heat sink 150 coupled to and spaced apart from the upper parts of the oil pan 110 and the suction fans 121 and 122, a grill plate 170 installed above and spaced apart from the heat sink 150, and a heater 161 installed below the grill plate 170. The grill plate 170 has an oil drain nozzle 171 formed in the center along the longitudinal direction.

[0016] In the present invention, the oil drain nozzle 171 not only allows oil generated during cooking to gather at the center of the grill plate 170 and be discharged to the oil pan 110 below, but also allows air containing oil vapor, smoke, heat, and odors generated above the grill plate 170 to be discharged toward the oil pan 110 located below the oil drain nozzle 171, as will be described later.

[0017] The heat sink 150 has a through-hole 157 formed in the center of the bottom plate 155 along the longitudinal direction, through which the oil drain nozzle 171 of the grill plate 170 passes and is coupled, thereby separating the upper space where the heater 161 is located from the lower space where the suction fans 121 and 122 are located, thereby preventing the suction fans 121 and 122 from being heated and damaged by the heat generated by the heater 161.

[0018] In addition, the heat sink 150 has a number of first exhaust holes 153 and second exhaust holes 154 formed on both side plates 151 and 152 in the longitudinal direction around the upper periphery, respectively, so that air blown by the intake fans 121 and 122 is supplied to the upper part of the grill plate 170 to form an air curtain (see arrow "A" in Figure 2). The type of the intake fans 121 and 122 is not particularly limited, but a long fan is 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 across the oil pan 110 located below the oil discharge nozzle 171.

[0020] Therefore, the first suction fan 121 draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 through the oil drain nozzle 171 and supplies it again 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, and simultaneously the second suction fan 122 draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 through the oil drain nozzle 171 and supplies it again to the top of the grill plate 170 through the second discharge hole 154 of the heat dissipation plate 150, thereby forming a second air circulation flow.

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

[0022] Meanwhile, in the present invention, both side walls 101 and 102 of the grill body 100 have an overall curved shape such that the middle portion protrudes outward. To this end, the lower side wall 181 of each of the both side walls 101 and 102 is formed to be inclined toward the outside of the grill body 100, and the upper side wall 182 is formed to be inclined toward the inside of the grill body 100. The curved shapes of the both side walls 101 and 102 reduce the generation of local vortexes, thereby reducing flow resistance and flow noise, and allowing the first and second air circulation flows to be formed more smoothly.

[0023] A partition wall 183 is formed on both side walls 101 and 102 of the grill body 100, bending in a U shape from the upper end of the upper side wall 182 and extending downward. A plurality of third exhaust holes 184 and fourth exhaust holes 185 are formed in the partition wall 183 of both side walls 101 and 102, respectively, and a first flow redirecting portion 186 is formed below the third exhaust holes 184 and fourth exhaust holes 185, protruding toward the grill plate 170. The upper end portions of the upper side wall 182 and the partition wall 183 are connected to a second flow redirecting portion 187. The first flow redirecting portion 186 and the second flow redirecting portion 187 may be formed of a horizontal wall or a wall that slopes downward toward the grill plate 170 side.

[0024] A flange 158 formed by bending outward from the upper ends of both side plates 151 and 152 of the heat sink 150 is located on the upper surface of the first flow redirecting portion 186, so that the third discharge hole 184 and the fourth discharge hole 185 of the partition wall 183 are located higher than the first discharge hole 153 and the second discharge hole 154 of the heat sink 150.

[0025] In addition, the partition wall 183 is located between the upper side wall 182 and both side plates 151, 152 of the heat sink 150. Therefore, the air discharged from the first suction fan 121 and the second suction fan 122 is divided into an air flow A discharged to the first discharge holes 153 and the second discharge holes 154 by the first flow redirecting portion 186 and an air flow B discharged to the third discharge holes 184 and the fourth discharge holes 185 by the second flow redirecting portion 187, and the air flow B discharged to the third discharge holes 184 and the fourth discharge holes 185 is located above the air flow A discharged to the first discharge holes 153 and the second discharge holes 154, forming a double air curtain (see arrow "B" in FIG. 2).

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

[0027] Here, the air supplied to the top of the grill plate 170 through the third exhaust hole 184 and the fourth exhaust hole 185 collides with each other above the oil drain nozzle 171 of the grill plate 170, and then a flow B2 is generated that diffuses outside the grill body 100. However, since this air flow B2 contains only purified air, there is no problem of indoor air pollution caused by the diffusion of odors and smoke generated when grilling meat into the room.

[0028] In addition, since a portion of the air discharged from the first suction fan 121 and the second suction 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 flow rate of the air discharged from the first discharge hole 153 and the second discharge hole 154 is less than the flow rate of the air discharged from the first suction fan 121 and the second suction fan 122. This reduces the possibility that the air supplied to the upper part of the grill plate 170 through the first discharge hole 153 and the second discharge hole 154 will collide with each other above the oil drain nozzle 171 of the grill plate 170 and cause turbulence. As a result, the suction force acting on the oil drain nozzle 171 of the grill plate 170 increases, thereby firmly forming the first air circulation flow and the second air circulation flow.

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

[0030] The ratio of the flow rate of air flow A discharged from the first and second discharge holes 153 and 154 to the flow rate of air flow B discharged from the third and fourth discharge holes 184 and 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 become weaker, reducing the purification efficiency.

[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 air flow above the grill plate 170, it is possible to completely prevent the air containing oil vapor, smoke, hot air, and odors generated above the grill plate 170 from diffusing to the outside of the grill body 100, and also to firmly form the first air circulation flow and the second air circulation flow by the first intake fan 121 and the second intake fan 122.

[0032] The embodiments disclosed in this specification and the accompanying drawings are merely used to easily explain the technical idea of ​​the present invention, and are not used to limit the scope of the present invention as defined in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. [Explanation of symbols]

[0033] 100 Grill body 101, 102 side wall 110 Oil pan 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 conversion section

Claims

1. The grill body and an oil pan provided inside the lower part of the grill body for storing water; suction fans disposed on both sides of the oil pan; a heat sink coupled to the upper side of the oil pan and the intake fan at a distance, the bottom plate having a through hole formed in the center thereof along a longitudinal direction, and both side plates spaced apart from both side walls of the grill body having a plurality of first exhaust holes and a plurality of second exhaust holes formed in the both side plates; a grill plate provided above the bottom plate of the heat sink at a distance from the bottom plate of the heat sink to be positioned above the first and second discharge holes of the heat sink, the grill plate having an oil drain nozzle formed at the center along the longitudinal direction, 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 across the oil pan located below the oil drain nozzle, the first suction fan draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate through the oil discharge nozzle and supplies the air to the upper part of the grill plate again through the first discharge hole of the heat dissipation plate, thereby forming a first air circulation flow; the second suction fan draws in air containing oil vapor, smoke, hot air, and odors generated above the grill plate through the oil discharge nozzle and supplies the air to the upper part of the grill plate again 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 air containing oil vapor, smoke, hot air, and odor discharged from the oil drain nozzle by the suction force of the first suction fan and the second suction fan comes into contact with water stored in the oil pan located below the oil drain nozzle to be purified, and then flows into the first suction fan and the second suction fan, The grill body has two side walls each having a partition wall formed thereon, the partition wall being bent downward in a U-shape by a second flow redirecting portion from the upper end thereof, a plurality of third and fourth exhaust holes are formed in the partition walls of the side walls, and a first flow redirecting portion is formed below the third and fourth exhaust holes, protruding toward the inside of the grill body; the third and fourth exhaust holes of the partition wall are spaced apart above the first and second exhaust holes of the heat sink, and the partition wall is located between both side walls of the grill body and both side plates of the heat sink, so that air discharged from the first and second intake fans is separated by the first flow redirecting unit into an airflow discharged from the first and second exhaust holes and an airflow discharged from the third and fourth exhaust holes by the second flow redirecting unit, and the airflow discharged from the third and fourth exhaust holes is located above the airflow discharged from the first and second exhaust holes, forming an airflow in the same direction and forming a double air curtain.

2. 2. The electric grill with a double air curtain type air purification circulation system according to claim 1, wherein the first and second flow redirecting portions are formed as horizontal walls or as walls inclined downward toward the inside of the grill body.

3. 2. The electric grill with a double air curtain type air purification circulation system according to claim 1, wherein a ratio of the flow rate of the air discharged from the first and second exhaust holes to the flow rate of the air discharged from the third and fourth exhaust holes is adjusted by a ratio of a distance between the partition wall and a side panel of the heat sink and a distance between the partition wall and a side wall of the grill body.

4. 2. The electric grill with a double air curtain type air purification circulation system according to claim 1, wherein a ratio of a flow rate of the air discharged from the first and second discharge holes to a flow rate of the air discharged from the third and fourth discharge holes is adjusted according to a ratio of sizes of the first and second discharge holes to sizes of the third and fourth discharge holes.

5. 2. The electric grill with a double air curtain type air purification circulation system according to claim 1, wherein the side walls of the grill body include 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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