A purifier and a roaster provided with the purifier

Abstract

The utility model provides a kind of purifier and oven with the purifier, it solves the technical problem that first purifier filter screen, oil fume processing bin and second purifier filter screen etc. component of existing purifier is very inconvenient to replace cleaning;Purifier is equipped with purifier shell of box structure, its front end is provided with air inlet, its rear end is provided with air outlet, its side is provided with first opening, second opening, third opening from front to back;First purifier filter screen is slidably connected in the bottom wall of purifier shell and can be pushed into or pulled out from first opening;Oil fume processing bin is slidably connected in the bottom wall of purifier shell and can be pushed into or pulled out from second opening;Second purifier filter screen is slidably connected in the bottom wall of purifier shell and can be pushed into or pulled out from third opening;Air inlet, first purifier filter screen, oil fume processing channel of oil fume processing bin, second purifier filter screen, air outlet are sealingly communicated;It can be widely applied to oil fume purification technical field.

Description

Technical Field

[0001] This application relates to the field of oil fume purification technology, and in particular to a purifier and an oven equipped with the purifier. Background Technology

[0002] The widespread use of baked goods reflects improved living standards, optimized dietary structures, and upgraded consumption concepts. However, the use of ovens and other equipment to bake food inevitably produces large amounts of fumes, which harm health and pollute the environment.

[0003] Currently, using a purifier and high-voltage electrostatic oil fume purification technology is one of the most widely used methods for oil fume purification. Its core principle is to use a high-voltage electric field to charge the oil fume particles, and then use the electric field force to attract the charged particles to the electrode plates, thereby achieving oil fume purification. Specifically, during grilling, the operator starts the fan through the control unit in the control box. Under the action of the fan, the oil fumes generated during grilling first pass through the initial filtration of the first purifier's filter screen into the oil fume treatment chamber. They are ionized when passing through the ion generator, and then, as they pass between several staggered positive and negative electrode plates, the ionized, charged oil fumes adhere to the outer surfaces of the positive and negative electrode plates. Under the action of gravity, they flow into the guide channel, and then through the oil drain pipe and oil outlet trough into the oil collection box. The purified gas, under the action of the fan, passes through the second purifier's filter screen and the exhaust pipe before finally being discharged into the outside air.

[0004] However, after prolonged use, the existing equipment such as ovens using the above-mentioned working principle are very inconvenient to replace and clean, including the first purifier filter, the fume treatment chamber, and the second purifier filter. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the above-mentioned technology and provide a purifier and an oven equipped with the purifier, which makes it easy to replace and clean the first purifier filter, the oil fume treatment chamber, and the second purifier filter after long-term use.

[0006] Therefore, this utility model provides an air purifier, which includes a first air purifier filter, a second air purifier filter, an oil fume treatment chamber, and an air purifier housing. The air purifier housing has a box structure, with an air inlet at the front end and an air outlet at the rear end. The sides of the air purifier have a first opening, a second opening, and a third opening from front to back. The first air purifier filter is slidably connected to the bottom wall of the air purifier housing in a drawer-like manner and can be pushed in or pulled out from the first opening. The oil fume treatment chamber is slidably connected to the bottom wall of the air purifier housing in a drawer-like manner and can be pushed in or pulled out from the second opening. The second air purifier filter is slidably connected to the bottom wall of the air purifier housing in a drawer-like manner and can be pushed in or pulled out from the third opening. When the first air purifier filter, the oil fume treatment chamber, and the second air purifier filter are pushed in from their respective openings, the air inlet, the oil fume treatment channel of the first air purifier filter, the second air purifier filter, and the air outlet are sealed and connected.

[0007] Preferably, the fume treatment chamber is a box structure. An air inlet is located at the front end of the chamber, and a first grille is installed at the air inlet. An exhaust outlet is located at the rear end of the chamber, and a second grille is installed at the exhaust outlet. A high-voltage electrode needle holder is installed inside the chamber near the first grille. The high-voltage electrode needle holder has a horizontal metal connecting rod and multiple spaced high-voltage electrode needles. The top ends of the multiple high-voltage electrode needles are connected to the horizontal metal connecting rod, and the bottom ends of the multiple high-voltage electrode needles are connected to the bottom cover of the purifier in the fume treatment chamber. Multiple positive electrode plates and multiple negative electrode plates are installed between the first grille and the second grille, arranged in an alternating pattern. The multiple positive electrode plates are connected to a grounding conductive rod, and the multiple negative electrode plates are connected to a low-voltage conductive rod. A first clearance notch is provided on the positive electrode plate, through which the low-voltage conductive rod passes and is isolated from the positive electrode plate. A second clearance notch is provided on the negative electrode plate, through which the grounding conductive rod passes and is isolated from the negative electrode plate.

[0008] Preferably, the bottom cover of the fume treatment chamber is provided with a first slot, a second slot, a U-shaped slot, a third slot, and a fourth slot; the U-shaped slots are spaced apart between the first and second slots; the third and fourth slots are spaced apart between the first slot and the U-shaped slots, and the third slot is located at the bottom of the fourth slot; the first slot is arranged horizontally for detachably inserting a first grid; the second slot is arranged horizontally for detachably inserting a second grid; the U-shaped slots are arranged vertically, in multiple quantities, and arranged horizontally, with the gap between two adjacent U-shaped slots for detachably inserting a positive electrode plate or a negative electrode plate; each U-shaped slot has an oil receiving groove inside; the third slots are multiple, spaced apart from each other, for detachably inserting the bottom end of a high-voltage electrode needle; the fourth slot is arranged horizontally, and when the top cover and bottom cover of the fume treatment chamber have the same structure, the fourth slot serves as the groove of the top cover for detachably inserting a horizontal metal connecting rod.

[0009] Preferably, the high-voltage electrode needle has a strip-shaped structure with a pointed tip on its narrower side. On the same side, there are multiple tips, which are distributed at intervals from top to bottom. On different sides, the multiple tips on different sides are distributed alternately up and down.

[0010] Preferably, the purifier housing is equipped with a rotary lock for locking the first purifier filter, the fume treatment chamber, and the second purifier filter after they are pushed in through their respective openings.

[0011] Preferably, the first purifier filter is a particulate filter and the second purifier filter is an activated carbon non-woven fabric filter.

[0012] This utility model also provides an oven, which is equipped with a purifier as described in any of the above claims, and a power supply module connected to the purifier.

[0013] Preferably, the power supply module includes a high-voltage line, a low-voltage line, and a ground wire. The high-voltage line is electrically connected to the horizontal metal connecting rod through a first elastic contact, the low-voltage line is electrically connected to the low-voltage conductive rod through a second elastic contact, and the ground wire is electrically connected to the grounding conductive rod through a third elastic contact.

[0014] Preferably, both the first elastic contact and the second elastic contact are covered with a plastic shell with creepage grooves.

[0015] Preferably, the oven is also equipped with a downdraft oven device and a fan, and the smoke outlet of the downdraft oven device is connected to the air inlet of the purifier through the fan.

[0016] Preferably, the oven is also equipped with a control box, which contains an intelligent control device; the baking tray of the downdraft oven is connected to a temperature sensor, and the electric heating wire in the electric heating plate of the downdraft oven is connected to a relay; the intelligent control device is electrically connected to the temperature sensor, the fan motor, and the relay via control lines.

[0017] The beneficial effects of this utility model are as follows: This utility model provides a purifier and an oven equipped with the purifier, which has a compact structure, modular design, simple installation, and does not take up space. The side of the purifier has a first opening, a second opening, and a third opening from front to back. The first purifier filter is slidably connected to the bottom wall of the purifier housing in a drawer-like manner and can be pushed in or pulled out from the first opening. The oil fume treatment chamber is slidably connected to the bottom wall of the purifier housing in a drawer-like manner and can be pushed in or pulled out from the second opening. The second purifier filter is slidably connected to the bottom wall of the purifier housing in a drawer-like manner and can be pushed in or pulled out from the third opening. After prolonged use, when the first purifier filter, the fume treatment chamber, and the second purifier filter become covered with grease and other impurities, affecting the air purification effect, the operator only needs to pull out the first purifier filter from the first opening, the fume treatment chamber from the second opening, and the second purifier filter from the third opening to replace it with a new one. The second purifier filter, fume treatment chamber, and second purifier filter are then inserted into the corresponding first, second, and third openings, making replacement and cleaning convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the air purifier of this utility model; Figure 2 for Figure 1 A structural schematic diagram of a three-dimensional view from another perspective of the view shown; Figure 3 for Figure 1 The view shown is a three-dimensional structural diagram of the first purifier filter, the second purifier filter, and the fume treatment chamber. Figure 4 This is a three-dimensional structural diagram of the filter screen in the first air purifier. Figure 5 This is a three-dimensional structural diagram of the filter screen in the second air purifier. Figure 6 This is a three-dimensional structural diagram of the fume treatment chamber; Figure 7 for Figure 6 A structural schematic diagram of a three-dimensional view from another angle of the view shown; Figure 8 for Figure 6 The view shown is a three-dimensional structural diagram of the purifier without the first air purifier filter and the top cover of the purifier. Figure 9 for Figure 6 The view shown is a three-dimensional structural diagram of the purifier without the second air purifier filter and the top cover of the purifier. Figure 10 A three-dimensional structural diagram of the air purifier's top cover or bottom cover; Figure 11 A schematic diagram of the structure of a three-dimensional high-voltage electrode needle; Figure 12 This is a schematic diagram of the structure of a three-dimensional high-voltage electrode needle holder; Figure 13 A structural schematic diagram of the power supply module in 3D view; Figure 14 This is a three-dimensional structural diagram showing the connection between the fume treatment chamber (with the second purifier filter and the purifier top cover removed) and the power supply module. Figure 15 A three-dimensional structural diagram showing the connection between the air purifier and the power supply module; Figure 16 for Figure 15 A structural schematic diagram of a three-dimensional view from another perspective of the view shown; Figure 17 This is a three-dimensional structural schematic diagram of the oven of this utility model; Figure 18 for Figure 17 A structural schematic diagram of the main view of the partial sectional view shown in the figure; Figure 19 for Figure 17 The exploded view shown is a structural schematic diagram. Figure 20 This is a schematic diagram of the intelligent control system of this utility model.

[0020] The diagram shows the following components: 1. Air purifier, 2. Power supply module, 3. Control box, 4. Downdraft exhaust oven device, 5. Fan, 11. First air purifier filter, 12. Second air purifier filter, 13. Fume treatment chamber, 14. Air purifier housing, 15. Rotary lock, 21. High voltage line, 22. Low voltage line, 23. Ground wire, 24. Power input line, 25. Power socket, 31. Intelligent control device, 41. Outer cylinder, 42. Fume ring, 43. Baking tray, 44. Electric heating plate, 45. Oil receiving basin, 46. Support cylinder, 47. Fume exhaust duct, 48. Temperature sensor, 49. 130. Relay; 131. Air inlet; 132. First grille; 133. Exhaust outlet; 134. Second grille; 135. Positive electrode plate; 136. Negative electrode plate; 137. Low-voltage conductive rod; 138. Grounding conductive rod; 139. High-voltage electrode pin holder; 141. Air inlet; 142. Air outlet; 143. First opening; 144. Second opening; 145. Third opening; 160. Air purifier top cover; 201. Plastic outer shell; 211. First elastic contact; 221. Second elastic contact; 231. Third elastic contact; 411. Smoke outlet, 421. Smoke vent, 431. Oil drain hole, 1301. First slot, 1302. Second slot, 1303. U-shaped slot, 1304. Oil receiving groove, 1305. Third slot, 1306. Fourth slot, 1351. First clearance notch, 1361. Second clearance notch, 1391. Horizontal metal connecting rod, 1392. High voltage electrode needle, 13921. Tip. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application. Unless otherwise specified, the methods used in this utility model are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0022] Depend on Figures 1-5As shown, this utility model provides an air purifier, which includes a first air purifier filter 11, a second air purifier filter 12, an oil fume treatment chamber 13, and an air purifier housing 14. The air purifier housing 14 has a box structure, with an air inlet 141 at the front end and an air outlet 142 at the rear end. The sides of the air purifier 14 have a first opening 143, a second opening 144, and a third opening 145 from front to back. The first air purifier filter 11 is slidably connected to the bottom wall of the air purifier housing 14 in a drawer-like manner and can be pushed in through the first opening 143. Or pull out; the fume treatment chamber 13 is slidably connected to the bottom wall of the purifier housing 14 and can be pushed in or pulled out from the second opening 144; the second purifier filter 12 is slidably connected to the bottom wall of the purifier housing 14 and can be pushed in or pulled out from the third opening 145; when the first purifier filter 11, the fume treatment chamber 13, and the second purifier filter 12 are pushed in from their respective openings, the air inlet 141, the first purifier filter 11, the fume treatment channel of the fume treatment chamber 13, the second purifier filter 12, and the air outlet 142 are sealed and connected.

[0023] Before use, the air inlet 141 of this purifier 1 is connected to the exhaust port of an oven or similar equipment. During use, air containing oil fumes is exhausted from the oven or similar equipment and enters the air inlet 141. It passes through the first purifier filter 11 to filter out large oil fume particles, then through the oil fume treatment chamber 13 for high-voltage electrostatic oil fume purification, and finally through the second purifier filter 12 to filter out fine oil fume particles. The purified air is then discharged from the exhaust port 142. The first purifier filter 11, the oil fume treatment chamber 13, and the second purifier filter 12 work together in an orderly and coordinated manner to achieve the desired oil fume purification effect while extending their service life. After prolonged use, if the first purifier filter 11, the fume treatment chamber 13, and the second purifier filter 12 become covered with grease and other impurities, affecting the air purification effect, the operator only needs to pull out the first purifier filter 11 from the first opening 143, the fume treatment chamber 13 from the second opening 144, and the second purifier filter 12 from the third opening 145 to replace it. The new second purifier filter 12, fume treatment chamber 13, and second purifier filter 12 are then inserted into the corresponding first opening 143, second opening 144, and third opening 145, respectively, making replacement and cleaning convenient.

[0024] In some embodiments, preferably, by Figures 6-9As shown, the fume treatment chamber 13 has a box-like structure. An air inlet 131 is located at the front end of the chamber, and a first grille 132 is installed at the air inlet 131 to further filter large oil droplets and impurities, preventing them from entering the equipment, reducing blockages, protecting internal components, extending equipment lifespan, and reducing noise. An exhaust vent 133 is located at the rear end of the chamber, and a second grille 134 is installed at the exhaust vent 133 to prevent backflow of foreign objects, reduce airflow turbulence, and lower noise.

[0025] A high-voltage electrode needle holder 139 is installed near the first grid 132 inside the fume treatment chamber 13. The high-voltage electrode needle holder 139 has a horizontal metal connecting rod 1391 and a plurality of spaced high-voltage electrode needles 1392. The high-voltage electrode needles 1392 can be existing stainless steel wires or other existing devices. The top ends of the plurality of high-voltage electrode needles 1392 are connected to the horizontal metal connecting rod 1391, and the bottom ends of the plurality of high-voltage electrode needles 1392 are connected to the purifier bottom cover 130 of the fume treatment chamber 13. After high voltage is applied to the horizontal metal connecting rod 1391, the voltage of the high-voltage electrode needles 1392 can reach -10KV to -16KV, generating a strong electric field that can release a large number of electrons. When the air containing oil fumes passes through this strong electric field, it is ionized, making the oil fumes negatively charged.

[0026] A plurality of positive electrode plates 135 and a plurality of negative electrode plates 136 are installed between the first fence 132 and the second fence 134, arranged in an alternating manner. The plurality of positive electrode plates 135 are connected to a grounding conductive rod 138; the plurality of negative electrode plates 136 are connected to a low-voltage conductive rod 137. After a low-voltage current is applied to the low-voltage conductive rod 137, the voltage can be set to -5KV to -8KV. An electric field is formed between the positive electrode plates 135 and the negative electrode plates 136. When air containing negatively charged oil fumes passes between the alternating positive electrode plates 135 and the negative electrode plates 136, the oil fumes in the air adhere to the outer surface of the positive electrode plates 135, thereby achieving the purpose of purifying the air.

[0027] The positive electrode plate 135 has a first clearance notch 1351, through which the low-voltage conductive rod 137 passes and is isolated from the positive electrode plate 135; the negative electrode plate 136 has a second clearance notch 1361, through which the grounding conductive rod 138 passes and is isolated from the negative electrode plate 136.

[0028] It should be noted that the high-voltage electrode needle 1392 can also apply a positive high voltage. The resulting strong electric field causes the oil fumes in the air to become positively charged. When the air containing the positively charged oil fumes passes between the positive electrode plate 135 and the negative electrode plate 136, the oil fumes in the air adhere to the outer surface of the negative electrode plate 136. From a safety perspective, it is safer to apply a negative high voltage with the high-voltage electrode needle 1392, so that the negatively charged oil fumes are adsorbed onto the outer surface of the zero-potential positive electrode plate 135 connected to the grounding conductive rod 138.

[0029] In some embodiments, preferably, by Figure 10 As shown, the bottom cover 130 of the fume treatment chamber 13 is provided with a first slot 1301, a second slot 1302, a U-shaped slot 1303, and a third slot 1305; the U-shaped slot 1303 is spaced between the first slot 1301 and the second slot 1302; the third slot 1305 is spaced between the first slot 1301 and the U-shaped slot 1303.

[0030] The first slot 1301 is arranged horizontally for detachable insertion of the first fence 132 (made of...). Figure 6 (As shown).

[0031] The second slot 1302 is arranged horizontally for detachable insertion of the second fence 134 (made by...). Figure 7 (As shown).

[0032] Multiple U-shaped slots 1303 are arranged longitudinally and laterally. The gap between two adjacent U-shaped slots 1303 is used for detachable insertion of the positive electrode plate 135 or the negative electrode plate 136. Each U-shaped slot 1303 has an oil receiving groove 1304 inside. Multiple third slots 1305 are arranged at intervals and are used for detachable insertion of the bottom end of the high-voltage electrode needle 1392 (made by...). Figure 8 (As shown).

[0033] The ionized, charged oil fumes adhere to the outer surface of the positive electrode plate 135 or the negative electrode plate 136, and then flow into the oil collection tank 1304 under the influence of gravity. When cleaning the purifier bottom cover 130, the oil sludge in the oil collection tank 1304 can be rinsed away, and the purifier bottom cover 130 can be reused. Similarly, the first grid 132, the second grid 134, the positive electrode plate 135, the negative electrode plate 136, and the high-voltage electrode needle 1392 can also be directly cleaned, dried, and then inserted into the purifier bottom cover 130 for continued use. No consumables are generated during use.

[0034] In some embodiments, preferably, by Figure 10As shown, the bottom cover 130 of the fume treatment chamber 13 is also provided with a fourth slot 1306. The fourth slot 1306 is spaced between the first slot 1301 and the U-shaped slot 1303, and the third slot 1305 is located at the bottom of the fourth slot 1306.

[0035] The fourth slot 1306 is horizontally positioned, and the top cover 160 of the purifier in the fume treatment chamber 13 (e.g.) Figure 6 As shown, the fourth slot 1306 is structurally identical to the bottom cover 130 of the purifier. It can serve as the slot for the top cover 160 of the purifier, used for the detachable insertion of the horizontal metal connecting rod 1391 (made of…). Figure 8 (As shown). The bottom cover 130 and top cover 160 of the purifier are designed to be interchangeable, saving costs and facilitating installation. During installation, simply position the top cover 160 of the purifier and the bottom cover 130 of the purifier in the fume treatment chamber 13 with a vertical gap, with the slot of the bottom cover 130 facing upwards and the slot of the top cover 160 facing downwards; then insert the first grille 132, the second grille 134, the positive electrode plate 135, the negative electrode plate 136, the horizontal metal connecting rod 1391, and the high-voltage electrode needle 1392 into the corresponding slots of the bottom cover 130 and the top cover 160 of the purifier, respectively.

[0036] In some embodiments, preferably, by Figure 11 As shown, the high-voltage electrode needle 1392 has a strip-shaped structure with a pointed tip 13921 on its narrower side. On the same side, there are multiple pointed tips 13921, spaced apart from top to bottom. On different sides, the pointed tips 13921 are staggered vertically. When a negative high-voltage current is applied to the high-voltage electrode needle 1392, the high-voltage pointed tips 13921 discharge, releasing a large number of electrons, which is beneficial for the electrolysis of oil fumes.

[0037] In some embodiments, preferably, by Figure 1 , Figure 3 As shown, a rotary lock 15 is installed on the purifier housing 14, which is used to lock the first purifier filter 11, the fume treatment chamber 13, and the second purifier filter 12 after they are pushed in from their respective openings; the rotary lock 15 can be a spring-loaded rotary lock, etc.

[0038] In some embodiments, preferably, by Figure 4 As shown, the first purifier filter 11 is a particulate filter that filters out large particles of oil fumes in the air.

[0039] In some embodiments, preferably, by Figure 5 As shown, the second purifier filter 12 is an activated carbon non-woven fabric filter, which filters out fine particles of oil fumes in the air, filters out oil fumes that are not completely purified, and absorbs odors.

[0040] Depend on Figures 13-16 , Figure 17 As shown, this utility model also provides an oven, which is equipped with a purifier 1 as described in any of the above claims, and a power supply module 2 connected to the purifier 1. The power supply module 2 supplies power to the purifier 1, thereby meeting the high-voltage electrostatic oil fume purification technology requirements of the purifier 1.

[0041] In some embodiments, preferably, by Figure 13 , Figure 14 As shown, preferably, the power supply module 2 is an existing device, which is equipped with a high voltage line 21, a low voltage line 22, and a ground line 23; the power supply module 2 can provide high voltage and low voltage output at the same time, and the ground line 22 can effectively prevent the equipment casing from becoming live and reduce the risk of electric shock. The high-voltage line 21 is electrically connected to the transverse metal connecting rod 1391 via a first elastic contact 211, providing high-voltage electricity to the high-voltage electrode needle 1392 through the transverse metal connecting rod 1391; the low-voltage line 22 is electrically connected to the low-voltage conductive rod 137 via a second elastic contact 221, providing low-voltage electricity to the negative electrode plate 136 through the low-voltage conductive rod 137; the ground line 23 is electrically connected to the grounding conductive rod 138 via a third elastic contact 231, providing grounding protection to the positive electrode plate 135 through the grounding conductive rod 138; the elastic contact electrical connection is an existing electrical connection method designed to achieve quick and convenient connection or disconnection. This connection method is particularly suitable for the electrical connection or disconnection between the power supply module 2 and the purifier 1 when the fume treatment chamber 13 is pushed in or pulled out from the second opening 144 of the purifier housing 14, ensuring good contact when pushed in and quick disconnection when pulled out, while also preventing accidental operation by personnel and ensuring high safety.

[0042] In some embodiments, preferably, by Figure 13 As shown, a plastic shell 201 with creepage grooves can be fitted over the first elastic contact 211, such as a high-voltage electrode insulating connector. The plastic material is such as polytetrafluoroethylene. The creepage grooves are to increase electrical insulation performance and prevent creepage during operation; to ensure reliable insulation and prevent leakage and short circuit. Similarly, the same plastic shell 201 with creepage grooves can also be fitted over the second elastic contact 221 to ensure reliable insulation and prevent leakage and short circuit.

[0043] In some embodiments, preferably, by Figures 17-19 As shown, the oven is also equipped with a downdraft oven device 4 and a fan 5. The smoke outlet 411 of the downdraft oven device 4 is connected to the air inlet 141 of the purifier 1 through the fan 5. The oil fumes emitted by the downdraft oven device 4 are transported to the purifier 1 for treatment through the fan 5.

[0044] The downdraft smoke-exhaust oven device 4 can be an existing device, or it can adopt the following device: Depend on Figures 17-19As shown, the lower exhaust oven device 4 is equipped with an outer cylinder 41, a smoke ring 42, a baking tray 43, an electric heating plate 44, an oil receiving basin 45, and a support cylinder 46. The smoke ring 42, the baking tray 43, the electric heating plate 44, the oil receiving basin 45, and the support cylinder 46 are arranged inside the outer cylinder 41.

[0045] The bottom of the support cylinder 46 is sealed and connected to the bottom surface of the inner cavity of the outer cylinder 41. The upper part of the support cylinder 46 passes through the bottom of the oil receiving basin 45 and extends outwards. The baking tray 43 is horizontally connected and positioned at the circumferential edge of the oil receiving basin 45. The bottom of the smoke ring 42 is connected to the circumferential edge of the oil receiving basin 45. An electric heating plate 44 is installed at the upper position inside the support cylinder 46, and the electric heating plate 44 is located directly below the baking tray 43. A smoke exhaust hole 421 is opened on the side wall of the smoke ring 42, and a smoke outlet 411 is opened on the outer cylinder 41. The outer cylinder 41, the smoke ring 42, the oil receiving basin 45, and the support cylinder 46 form a smoke exhaust channel 47, which is connected to the smoke exhaust hole 421 and the smoke outlet 411. An oil leakage hole 431 is opened on the baking tray 43, and the oil leakage hole 431 is located above the oil receiving basin 45.

[0046] Depend on Figure 18 As shown, when the downdraft oven device 4 is in use, the electric heating plate 44 is powered on and generates heat, and the baking plate 43 above it absorbs heat and heats up. Raw meat is placed on the baking plate 43. At high temperature, the fat in the raw meat melts and forms liquid oil, which evaporates to form oil fumes. The liquid oil falls from the oil drain hole 431 into the oil collection basin 45 for storage. Under the action of the fan 5, the oil fumes are drawn into the exhaust channel 47 from the exhaust hole 421, and then enter the purifier 1 from the exhaust port 411 through the fan 5 to complete the purification treatment of the oil fumes in the air.

[0047] It should be noted that the heating source is not limited to the electric heating plate 44; other heating sources such as gas heating and carbon heating can also be used as equivalent substitutes.

[0048] In some embodiments, preferably, by Figure 18 , Figure 20 As shown, the oven also includes a control box 3, which houses an intelligent control device 31, typically a PLC (Programmable Logic Controller). The baking tray 43 of the downdraft oven 4 is connected to a temperature sensor 48, which can be a thermocouple. The heating wire in the electric heating plate 44 of the downdraft oven 4 is connected to a relay 49. The intelligent control device 31 is electrically connected to the temperature sensor 48, the motor of the fan 5, and the relay 49 via control lines. Appropriate intelligent control devices 31, temperature sensors 48, and relays 49 can be selected according to actual conditions.

[0049] When the temperature of the baking pan 43 exceeds the preset maximum temperature, the temperature sensor 48 generates a sensing signal. This signal is transmitted to the intelligent control device 31 via the control circuit. The intelligent control device 31 sends commands to the relay 49 and the motor of the fan 5. Upon receiving the command, the relay 49 disconnects, cutting off the power to the heating element and stopping heating. Simultaneously, the motor of the fan 5 increases its speed, thereby increasing the airflow. When the temperature of the baking pan 43 falls below the preset minimum temperature, the temperature sensor 48 generates a sensing signal. This signal is transmitted to the intelligent control device 31 via the control circuit. The intelligent control device 31 sends commands to the relay 49 and the motor of the fan 5. Upon receiving the command, the relay 49 closes, connecting the power to the heating element and initiating heating. Simultaneously, the motor of the fan 5 decreases its speed, thereby reducing the airflow.

[0050] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] It should be noted that in the above embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution; they are merely for the convenience of description.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A purifier, wherein the purifier (1) is provided with a first purifier filter (11), a second purifier filter (12), and an oil fume treatment chamber (13), characterized in that, The purifier (1) is also provided with a purifier housing (14), which is a box structure. The front end of the purifier housing (14) is provided with an air inlet (141), the rear end of the purifier (1) is provided with an air outlet (142), and the side of the purifier (1) is provided with a first opening (143), a second opening (144), and a third opening (145) from front to back. The first purifier filter (11) is slidably connected to the bottom wall of the purifier housing (14) in a drawer-like manner and can be pushed in or pulled out from the first opening (143); The fume treatment chamber (13) is slidably connected to the bottom wall of the purifier housing (14) in a drawer-like manner and can be pushed in or pulled out from the second opening (144); The second purifier filter (12) is slidably connected to the bottom wall of the purifier housing (14) in a drawer-like manner and can be pushed in or pulled out from the third opening (145); When the first purifier filter (11), the fume treatment chamber (13), and the second purifier filter (12) are pushed in from their respective openings, the air inlet (141), the first purifier filter (11), the fume treatment channel of the fume treatment chamber (13), the second purifier filter (12), and the air outlet (142) are sealed and connected.

2. The air purifier according to claim 1, characterized in that, The fume treatment chamber (13) is a box structure. An air inlet (131) is located at the front end of the fume treatment chamber (13), and a first grille (132) is installed at the air inlet (131). An exhaust outlet (133) is located at the rear end of the fume treatment chamber (13), and a second grille (134) is installed at the exhaust outlet (133). A high-voltage electrode needle holder (139) is installed inside the fume treatment chamber (13) near the first grille (132). The high-voltage electrode needle holder (139) has a horizontal metal connecting rod (1391) and multiple spaced high-voltage electrode needles (1392). The top ends of the multiple high-voltage electrode needles (1392) are connected to the horizontal metal connecting rod (1391), and the bottom ends of the multiple high-voltage electrode needles (1392) are connected to the purifier of the fume treatment chamber (13). The bottom cover (130) is connected; a plurality of positive electrode plates (135) and a plurality of negative electrode plates (136) are installed between the first fence (132) and the second fence (134), which are staggered and spaced apart. The plurality of positive electrode plates (135) are connected to the grounding conductive rod (138), and the plurality of negative electrode plates (136) are connected to the low-voltage conductive rod (137). The positive electrode plate (135) has a first clearance notch (1351), and the low-voltage conductive rod (137) passes through the first clearance notch (1351) and is isolated from the positive electrode plate (135). The negative electrode plate (136) has a second clearance notch (1361), and the grounding conductive rod (138) passes through the second clearance notch (1361) and is isolated from the negative electrode plate (136).

3. A purifier according to claim 1 or 2, characterized in that, The bottom cover (130) of the fume treatment chamber (13) is provided with a first slot (1301), a second slot (1302), a U-shaped slot (1303), a third slot (1305), and a fourth slot (1306); the U-shaped slot (1303) is spaced between the first slot (1301) and the second slot (1302); the third slot (1305) and the fourth slot (1306) are located between the first slot (1301) and the U-shaped slot (1303), and the third slot (1305) is located at the bottom of the fourth slot (1306); The first slot (1301) is arranged horizontally for detachably inserting the first fence (132). The second slot (1302) is arranged laterally for removably inserting the second fence (134). The U-shaped slots (1303) are arranged longitudinally, and there are multiple slots arranged laterally. The gap between two adjacent U-shaped slots (1303) is used for detachable insertion of positive electrode plate (135) or negative electrode plate (136). Each U-shaped slot (1303) has an oil receiving groove (1304) inside. The number of the third slots (1305) is set to multiple, and the multiple third slots (1305) are distributed at intervals to each other for detachably inserting the bottom end of the high voltage electrode needle (1392); The fourth slot (1306) is arranged horizontally. When the top cover (160) of the purifier of the fume treatment chamber (13) and the bottom cover (130) of the purifier have the same structure, the fourth slot (1306) serves as the groove of the top cover (160) of the purifier and is used to detachably insert the horizontal metal connecting rod (1391).

4. The air purifier according to claim 2, characterized in that, The high-voltage electrode needle (1392) has a strip-shaped structure with a tip (13921) on its narrower side. On the same side, there are multiple tips (13921), and the multiple tips (13921) are distributed at intervals from top to bottom. On different sides, the multiple tips (13921) located on different sides are distributed alternately up and down.

5. The air purifier according to claim 1, characterized in that, A rotary lock (15) is installed on the purifier housing (14) for locking the first purifier filter (11), the fume treatment chamber (13), and the second purifier filter (12) after they are pushed in from their respective openings.

6. The air purifier according to claim 1, characterized in that, The first purifier filter (11) is a particulate filter, and the second purifier filter (12) is an activated carbon nonwoven filter.

7. An oven, characterized in that, The device includes a purifier (1) as described in any one of claims 1-6, and a power supply module (2) connected to the purifier (1).

8. An oven according to claim 7, characterized in that, The power supply module (2) is provided with a high voltage line (21), a low voltage line (22), and a ground line (23). The high voltage line (21) is electrically connected to the horizontal metal connecting rod (1391) through a first elastic contact (211). The low voltage line (22) is electrically connected to the low voltage conductive rod (137) through a second elastic contact (221). The ground line (23) is electrically connected to the grounding conductive rod (138) through a third elastic contact (231). The first elastic contact (211) and the second elastic contact (221) are both covered with a plastic shell (201) with creepage grooves.

9. An oven according to claim 7, characterized in that, The oven is also equipped with a bottom exhaust oven device (4) and a fan (5). The exhaust port (411) of the bottom exhaust oven device (4) is connected to the air inlet (141) of the purifier (1) through the fan (5).

10. An oven according to claim 9, characterized in that, The oven is also equipped with a control box (3), and the control box (3) is equipped with an intelligent control device (31); the baking tray (43) of the bottom exhaust oven device (4) is connected to a temperature sensor (48), and the electric heating wire in the electric heating plate (44) of the bottom exhaust oven device (4) is connected to a relay (49); the intelligent control device (31) is electrically connected to the temperature sensor (48), the motor of the fan (5), and the relay (49) through control lines.

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