Electric oven with air purification double circulation system

Abstract

This invention relates to an electric oven with a dual-circulation air purification system. The oven is characterized by an intake fan comprising a first intake fan and a second intake fan located on either side of an oil pan situated below the oil drain nozzle of the baking pan in the lower space of the oven body. The first intake fan draws in air generated above the baking pan, containing oil vapor, smoke, heat, and odors, through the oil drain nozzle, and supplies it back to the upper part of the baking pan through a first discharge hole in the heat shield to form a first air circulation flow. The second intake fan draws in air generated above the baking pan, containing oil vapor, smoke, heat, and odors, through the oil drain nozzle, and supplies it back to the upper part of the baking pan through a second discharge hole in the heat shield to form a second air circulation flow. The air, containing oil vapor, smoke, heat, and odors, discharged from the oil drain nozzle by the suction of the first and second intake fans, is purified by contact with water stored in the oil pan below the oil drain nozzle before flowing into the first and second intake fans.

Description

Technical Field

[0001] This invention relates to an electric oven, and more specifically to an electric oven with an air purification and circulation system that removes oil vapors and fumes generated during food cooking. Background Technology

[0002] Typically, homes or restaurants are equipped with electric ovens, which include: a grill rack with multiple drain holes; and an oil pan located under the grill rack to collect oil dripping from the drain holes.

[0003] In this type of electric grill, the oil produced during grilling is discharged through the oil drain hole of the grill rack to the oil pan at the bottom. However, a lot of oil will splash outside, thus polluting the area around the electric grill. The smell or smoke produced during grilling spreads into the room, causing indoor air pollution. Furthermore, the heat released from the grill rack into the room during grilling delays the grilling time, thereby increasing power consumption.

[0004] To solve this problem, refer to Figure 1 The inventor has developed and applied for a patent for an electric oven with an oil vapor and flue gas purification and circulation system, which has been granted (see "Patent Document 1" below). The aforementioned oil vapor and flue gas purification and circulation system is characterized by comprising: an oven body 100; an oil pan 110 disposed on one side of the lower interior of the oven body 100 for storing water; an intake fan 120 disposed on one side of the oil pan 110 for drawing in air including oil vapor, flue gas, hot air, and odors and directing it onto the water stored in the oil pan 110; and a heat shield 150, separately attached to the upper part of the oil pan 110 and the intake fan 120, having through holes 157 formed at predetermined intervals along its central length direction, and having a plurality of intake holes 154 and exhaust holes formed at both ends of its upper length direction. The outlet 153; the baking tray 170 is spaced apart on the upper part of the heat shield 150, and has a plurality of oil drain nozzles 171 formed at predetermined intervals along the central length direction. An air guide 130 is provided between the oil tray 110 and the suction fan 120 to guide the air including the intake oil vapor, flue gas, hot air and odor toward the water stored in the oil tray 110. This allows the air including oil vapor, flue gas, hot air and odor delivered by the suction fan 120 to flow downward through the air guide 130 toward the water stored in the oil tray 110 and increase the contact between the air and the water, thereby improving the purification performance.

[0005] However, in the case of the existing electric oven disclosed in "Patent Document 1", such as Figure 1The airflow indicated by the black arrow in the middle exhibits the following phenomenon: when meat is grilled on the grill pan 170, some of the air generated, including oil vapor, smoke, heat and odor, cannot be drawn into the intake hole 154 of the heat shield 150. Instead, it diffuses beyond the oven body 100 due to inertia and spreads to the outside, causing the problem of contamination around the electric oven to persist.

[0006] In addition, in existing electric ovens, since the intake fan 120 draws in and delivers oil vapor, smoke, heat and odors before they are purified, the interior of the intake fan 120 inevitably has a structure that is directly exposed to oil vapor, etc., resulting in a significant reduction in the durability of the intake fan 120.

[0007] Furthermore, in existing electric ovens, air containing oil vapor flows along the inner wall of the oven body 100 and condenses to produce oil before flowing into the intake fan 120 after being drawn into the intake port 154, thereby contaminating the inner wall of the body 100. In order to prevent this contamination, an oil grate 140 needs to be added to the inner wall of the body 100.

[0008] Furthermore, the oil pan 110 contains water for purifying air, including oil vapor, flue gas, heat, and odors. Figure 1 The air circulation flow indicated by the white arrow is located downstream of the intake fan 120. Therefore, in order to improve the purification performance, an air guide 130 is required to guide the air supplied by the intake fan 120 toward the water stored in the oil pan 110.

[0009] However, the air guide 130, oil grille 140, etc., ultimately lead to an increase in the number of parts, which has a negative impact on the manufacturing process and cost of the electric oven.

[0010] Patent Document 1: KR 10-1803836 B1 (December 4, 2017) Summary of the Invention

[0011] Technical issues

[0012] The present invention is proposed to solve the above-mentioned problems. Its purpose is to provide an electric oven with an air purification dual circulation system that can fundamentally prevent the diffusion of air, including oil vapor, smoke, heat and odor generated during grilling, to the outside of the oven body.

[0013] Problem-solving methods

[0014] The electric oven with a dual-circulation air purification system of the present invention, which solves the above-mentioned technical problems, is characterized by comprising: an oven body; an oil pan disposed on the lower inner side of the oven body for storing water; an intake fan located on both sides of the oil pan; a heat shield plate separately attached to the upper part of the oil pan and the intake fan, having through holes formed at predetermined intervals along the central length direction of the bottom plate, and having a plurality of first discharge holes and second discharge holes formed on two side plates separated from the two inner side walls of the oven body; and a baking tray disposed separately on the upper part of the bottom plate of the heat shield plate, such that the first discharge holes and second discharge holes of the heat shield plate are located at the upper part, having a plurality of oil drain nozzles formed at predetermined intervals along the central length direction; the intake fan comprising a first intake fan and a second intake fan, the first intake fan and the second intake fan being separated from the oil drain nozzles. The oil pans at the lower part of the nozzle are located on both sides of the lower space of the oven body. The first suction fan draws in air, including oil vapor, smoke, heat and odor, generated on the upper part of the baking pan through the oil drain nozzle, and supplies it back to the upper part of the baking pan through the first discharge hole of the heat shield to form a first air circulation flow. The second suction fan draws in air, including oil vapor, smoke, heat and odor, generated on the upper part of the baking pan through the oil drain nozzle, and supplies it back to the upper part of the baking pan through the second discharge hole of the heat shield to form a second air circulation flow. The air, including oil vapor, smoke, heat and odor, discharged from the oil drain nozzle by the suction of the first and second suction fans is purified by contact with the water stored in the oil pan located below the oil drain nozzle, and then flows into the first and second suction fans.

[0015] Preferably, the oil drain nozzle of the baking pan can be connected to the through hole of the heat-resistant plate.

[0016] Preferably, the above-mentioned intake fan can be a long fan.

[0017] Preferably, the side cross-sectional shape of the baking pan can be "V" shaped.

[0018] Preferably, the oil pan can be slidably assembled to or detached from the oven body on the lower side of the oven body.

[0019] On the other hand, the electric oven with a dual air purification circulation system of the present invention may also include a guiding means for guiding air, including oil vapor, flue gas, hot air and odor, discharged from the oil drain nozzle to the oil pan.

[0020] The aforementioned guiding means are located inside the oven body, between the oil pan and the heat shield.

[0021] The aforementioned guiding means includes: a first vent hole, located at a position facing the oil drain nozzle along the central length direction; a second vent hole, located at a position facing the first intake fan and the second intake fan respectively; and a guiding surface, having a shape that curves from the first vent hole toward the oil pan and then toward the second vent hole, covering the upper part of the oil pan.

[0022] Preferably, an opening is formed at the lower end of one side of the aforementioned guiding means, through which the oil pan can pass.

[0023] The effects of the invention

[0024] In the electric oven with a dual air purification circulation system of the present invention, only purified air is discharged through the first exhaust hole and the second exhaust hole formed on the heat shield plate by the first intake fan and the second intake fan, and only air including oil vapor, smoke, heat and odor is drawn in through the oil drain nozzle of the baking pan for draining oil produced during cooking, thereby preventing pollution around the electric oven.

[0025] Furthermore, by directing purified air, free of oil vapors, fumes, heat, and odors, into the interiors of the first and second intake fans, the interiors of the intake fans can be prevented from being exposed to contamination such as oil vapors.

[0026] Furthermore, by using the first air circulation flow and the second air circulation flow formed by the first intake fan and the second intake fan, additional structures such as oil grids or air guides in the prior art can be omitted, thereby having a beneficial effect on manufacturing process and manufacturing cost.

[0027] Furthermore, purification efficiency can be maximized by minimizing the airflow that is directed directly toward the first and second intake fans without coming into contact with the water stored in the oil pan. Attached Figure Description

[0028] Figure 1 A cross-sectional view illustrating the air circulation flow of a prior art electric oven.

[0029] Figure 2 This is an exploded perspective view of the electric oven with a dual-circulation air purification system according to the present invention.

[0030] Figure 3 A cross-sectional view showing the air circulation flow of the electric oven with a dual air purification system according to the present invention.

[0031] Figure 4 An exploded perspective view of an electric oven with a dual-circulation air purification system according to a second embodiment of the present invention, including guiding means.

[0032] Figure 5A cross-sectional view showing the air circulation flow of an electric oven with an air purification dual circulation system according to a second embodiment of the present invention, including guiding means.

[0033] Explanation of reference numerals in the attached figures

[0034] 100: Oven body 110: Oil pan

[0035] 121: First intake fan 122: Second intake fan

[0036] 150, 151: Heat shield; 152: Side panel

[0037] 153: First discharge port; 154: Second discharge port

[0038] 155: Base plate; 157: Through hole

[0039] 160: Heating element; 161: Heater

[0040] 162: Temperature adjustment knob 163: Intake fan switch

[0041] 170: Baking pan 171: Oil drain nozzle

[0042] 180: Guiding means; 181: First vent.

[0043] 182: Second vent 183: Guide surface

[0044] 184: Opening Detailed Implementation

[0045] The electric oven with a dual-circulation air purification system of the present invention will now be described in detail with reference to the accompanying drawings. However, detailed descriptions of well-known functions and structures that may unnecessarily obscure the spirit of the invention will be omitted.

[0046] Figure 2 This is an exploded perspective view of the electric oven with a dual-circulation air purification system according to the present invention. Figure 3 A cross-sectional view showing the air circulation flow of the electric oven with a dual air purification system according to the present invention.

[0047] Reference Figure 2The electric oven with a dual-circulation air purification system of the present invention includes: an oven body 100; an oil pan 110 disposed on the lower inner side of the oven body 100 for storing water; intake fans 121 and 122 located on both sides of the oil pan 110; a heat shield 150 separately attached to the upper part of the oil pan 110 and the intake fans 121 and 122; a baking tray 170 separately disposed on the upper part of the heat shield 150; and a heating element 160, which is provided with a heater 161, a temperature adjustment knob 162, an intake fan switch 163, and other components located on the lower part of the baking tray 170.

[0048] The baking pan 170 has a V-shaped side cross-section and multiple oil drain nozzles 171 are formed at specified intervals along its central length.

[0049] In this invention, the oil drain nozzle 171 not only causes the oil generated during cooking to gather at the center of the baking pan 170 and drain to the lower oil pan 110, but also, as described below, causes the air generated in the upper part of the baking pan 170, including oil vapor, smoke, heat and odor, to be discharged to the oil pan 110 located below the oil drain nozzle 171.

[0050] The heat shield 150 has through holes 157 formed at predetermined intervals along the center length of the base plate 155, so that the oil drain nozzle 171 of the baking pan 170 is connected through it, thereby separating the upper space of the heater 161 of the heating element 160 and the lower space of the intake fans 121 and 122, preventing the intake fans 121 and 122 from being damaged by the heat generated by the heater 161 of the heating element 160.

[0051] Furthermore, the two side plates 151 and 152 along the upper length of the heat shield 150 are respectively provided with a plurality of first exhaust holes 153 and second exhaust holes 154, so that the air supplied by the intake fans 121 and 122 is supplied to the upper part of the baking tray 170 to form an air curtain (see reference). Figure 3 (arrow).

[0052] There are no particular restrictions on the types of the aforementioned intake fans 121 and 122, but if... Figure 2 The elongated fan shown is better suited for creating a uniform air curtain above the baking pan 170.

[0053] like Figure 2 As shown, preferably, the oil pan 110 can be slidably assembled to and detached from the oven body 100 on the lower side of the oven body 100.

[0054] Reference Figure 3In this invention, the aforementioned suction fans 121 and 122 are characterized in that they are composed of a first suction fan 121 and a second suction fan 122 located on both sides of the lower space of the oven body 100, separated by an oil pan 110 located below the oil drain nozzle 171.

[0055] Thus, the first intake fan 121 draws in air, including oil vapor, smoke, heat and odor, generated on the upper part of the baking pan 170 through the oil drain nozzle 171, and supplies it back to the upper part of the baking pan 170 through the first discharge hole 153 of the heat shield 150 to form a first air circulation flow. At the same time, the second intake fan 122 draws in air, including oil vapor, smoke, heat and odor, generated on the upper part of the baking pan 170 through the oil drain nozzle 171, and supplies it back to the upper part of the baking pan 170 through the second discharge hole 154 of the heat shield 150 to form a second air circulation flow.

[0056] In this case, the air containing oil vapor, smoke, heat and odor discharged from the oil drain nozzle 171 by the suction of the first intake fan 121 and the second intake fan 122 is directed toward the oil pan 110 located below the oil drain nozzle 171, and purified by contact with the water W stored in the oil pan 110 before flowing into the first intake fan 121 and the second intake fan 122.

[0057] Therefore, unlike existing technologies, since the air that has been purified of oil vapor, smoke, heat and odor flows into the interior of the first intake fan 121 and the second intake fan 122, the interior of the intake fans 121 and 122 will not be exposed to pollution caused by oil vapor, etc., thereby improving the durability of the intake fan 120.

[0058] Furthermore, the first exhaust hole 153 and the second exhaust hole 154 formed on the heat shield 150 only exhaust purified air. Air containing oil vapor, smoke, heat and odor is only drawn in through the oil drain nozzle 171 of the baking pan 170 for draining oil produced during cooking. Therefore, it fundamentally prevents the possibility of unpurified air in the air circulation path spreading across the oven body 100 to the outside, thereby preventing pollution around the electric oven.

[0059] Furthermore, since the air supplied from the first intake fan 121 and the second intake fan 122 is purified air to remove oil vapors, there is no risk of contaminating the inner wall of the oven body 100 along the air circulation path, thus having the advantage of eliminating the need for the oil grid structure in the prior art.

[0060] Furthermore, when air including oil vapor, flue gas, hot air and odor is drawn into the oven body 100 through the oil drain nozzle 171, the airflow is guided toward the oil pan 110 by the oil drain nozzle 171 itself, so additional structures such as air guides in the prior art can be omitted.

[0061] On the other hand, refer to Figure 4 and 5 As a second embodiment of the present invention, the electric oven with air purification dual circulation system of the present invention further includes a guiding means 180, which is used to guide the air including oil vapor, flue gas, hot air and odor discharged from the oil drain nozzle 171 to the oil pan 110.

[0062] The aforementioned guiding means 180 is disposed inside the oven body 100, located between the oil pan 110 and the heat shield 150. The guiding means 180 includes: a first vent 181, disposed along the central length direction opposite to the oil drain nozzle 171; a second vent 182, disposed opposite to the first intake fan 121 and the second intake fan 122 respectively; and a guiding surface 183, having a shape that curves from the first vent 181 toward the oil pan 110 and then toward the second vent 182, covering the upper part of the oil pan 110.

[0063] Therefore, the air discharged from the oil drain nozzle 171, including oil vapor, flue gas, hot air and odor, flows into the interior of the guide means 180 through the first vent 181. After the airflow formed by the guide surface 183 comes into contact with the water W stored in the oil pan 110, it is drawn in by the first intake fan 121 and the second intake fan 122 through the second vent 182.

[0064] The aforementioned guide surface 183 serves to suppress the airflow, which includes oil vapor, flue gas, hot air and odor, discharged from the aforementioned oil drain nozzle 171, from directly facing the first intake fan 121 and the second intake fan 122 without coming into contact with the water W stored in the aforementioned oil pan 110.

[0065] Therefore, in the second embodiment of the present invention, the air including oil vapor, flue gas, hot gas and odor discharged from the oil drain nozzle 171 can be accurately guided to the oil pan 110 by the above-mentioned guiding means 180, minimizing the airflow from the oil drain nozzle 171 that includes oil vapor, flue gas, hot gas and odor directly towards the first intake fan 121 and the second intake fan 122 without contacting the water W stored in the oil pan 110, thereby maximizing the purification efficiency.

[0066] An opening 184 is formed at the lower end of one side of the aforementioned guiding means 180, through which the oil pan 110 can pass, so that the oil pan 110 can be slidably assembled to or disassembled from the oven body 100 on the lower side of the oven body 100.

[0067] The embodiments disclosed in this specification and accompanying drawings are merely illustrative of the technical concept of the invention and are not intended to limit the scope of the invention as described in the claims. Therefore, those skilled in the art will understand that various modifications and equivalent embodiments can be made therein.

Claims

1. An electric oven with a dual-circulation air purification system, characterized in that, include: Oven body; An oil pan, located on the lower inner side of the oven body, is used to store water; The intake fan is located on both sides of the aforementioned oil pan; A heat shield plate, spaced apart from the upper part of the oil pan and the intake fan, has through holes formed at predetermined intervals along the center length of the bottom plate. Multiple first discharge holes and second discharge holes are formed on two side plates separated from the two inner sidewalls of the oven body, respectively. A baking tray is positioned at the top of the base plate of the aforementioned heat-resistant plate, with the first and second drain holes of the heat-resistant plate located at the top. Multiple oil drain nozzles are formed at predetermined intervals along the central length direction. The oil pan is located on the lower inner side of the oven body, so that the oil pan is prevented from being heated by the heat shield plate. The aforementioned intake fan includes a first intake fan and a second intake fan, which are located on either side of the lower space of the oven body, separated by the oil pan located below the oil drain nozzle. The first intake fan draws in air, including oil vapor, fumes, heat, and odors, generated above the baking pan through the oil drain nozzle, and supplies it back to the upper part of the baking pan through the first exhaust hole of the heat shield to form a first air circulation flow. The second intake fan draws in air, including oil vapor, fumes, heat, and odors, generated above the baking pan through the oil drain nozzle, and supplies it back to the upper part of the baking pan through the second exhaust hole of the heat shield to form a second air circulation flow. The air, including oil vapor, smoke, heat and odor, discharged from the oil drain nozzle by the suction of the first and second suction fans collides with the water stored in the oil pan located below the oil drain nozzle and is then diverted to both sides of the oil pan before flowing directly into the first and second suction fans.

2. The electric oven with a dual-circulation air purification system according to claim 1, characterized in that, The oil drain nozzle of the baking pan is connected to the through hole of the heat shield plate.

3. The electric oven with a dual-circulation air purification system according to claim 1, characterized in that, The aforementioned intake fan is a long, narrow fan.

4. The electric oven with a dual-circulation air purification system according to claim 1, characterized in that, The side cross-section of the baking pan is V-shaped.

5. The electric oven with a dual-circulation air purification system according to claim 1, characterized in that, The oil pan can be slidably assembled to or detached from the oven body on the lower side of the oven body.

6. The electric oven with a dual-circulation air purification system according to claim 1, characterized in that, It also includes a guiding means, which is used to guide the air, including oil vapor, flue gas, hot gas and odor, discharged from the oil drain nozzle to the oil pan.

7. The electric oven with a dual-circulation air purification system according to claim 6, characterized in that, The aforementioned guiding means are located inside the oven body, between the oil pan and the heat shield.

8. The electric oven with a dual-circulation air purification system according to claim 7, characterized in that, The aforementioned guidance methods include: The first vent is located at a position facing the aforementioned oil drain nozzle along the central length direction; The second vent is located opposite to the first and second intake fans, respectively; and The guide surface has a shape that bends from the first vent hole toward the oil pan and then toward the second vent hole, covering the upper part of the oil pan.

9. The electric oven with a dual-circulation air purification system according to claim 8, characterized in that, The aforementioned oil pan can be slidably assembled to or detached from the oven body on the lower side of the oven body. An opening is formed at the lower end of one side of the aforementioned guiding means, through which the aforementioned oil pan can pass.

Images