Oil-gas separation device and cooking utensil

Abstract

The invention provides an oil-gas separation device which is characterized by comprising a framework, an oil-gas separation assembly and a sealing cover. One side of the framework is opened outwards, and an installation groove of a containing cavity is formed inwards and used for installing the oil-gas separation assembly; the oil-gas separation assembly comprises a support body and a plurality of separation pieces, a plurality of clamping grooves are formed in the two opposite sides of the support body at intervals, the separation pieces are installed on the clamping grooves at intervals, and a channel for oil gas to pass through is formed between every two adjacent separation pieces. The sealing cover comprises a sealing cover side plate and clamping hook assemblies symmetrically arranged at the two ends, the clamping hook assemblies extend outwards relative to the sealing cover side plate, and the sealing cover is used for being installed at the open end of the framework so as to fix the oil-gas separation assembly. The oil-gas separation device has high oil-gas separation efficiency and separation rate.

Description

Technical Field

[0001] The present invention belongs to the technical field of kitchen appliances, and particularly relates to an oil-gas separation device and a cooking appliance. Background Art

[0002] With the continuous improvement of consumers' requirements for health and quality of life and the development of related technologies of kitchen appliances, kitchen appliances with oil-gas separation functions are increasingly favored. When kitchen appliances are used for food cooking, especially for steaming, baking, etc., a large amount of oil fume (oil-gas mixture) will be generated. If the oil fume is not separated, on the one hand, the oil fume may be discharged into the indoor environment. The oil fume contains various harmful substances, such as polycyclic aromatic hydrocarbons, benzo[a]pyrene, etc. These substances will diffuse in the indoor air and, after being inhaled by the human body, will increase the risk of suffering from respiratory diseases, cardiovascular diseases, and even lung cancer, etc.; on the other hand, if directly discharged outdoors, the unseparated oil fume is directly discharged outdoors, and the oil and pollutants in it will enter the atmosphere, forming pollutants such as inhalable particulate matter, which will affect the air quality.

[0003] Currently, common oil-gas separation technologies include centrifugal separation technology, condensation separation technology, and filtration separation technology. Centrifugal separation technology and condensation separation technology often require additional devices to achieve centrifugation or maintain the condensation temperature; filtration separation technology is to filter the oil fume through various filter materials, such as metal meshes, fiber filter meshes, ceramic filter elements, etc., so that the oil droplets are intercepted on the filter mesh, and the gas passes through the filter mesh and is discharged. However, as the use time increases, the pore size of the filter mesh will gradually become smaller, the wind resistance will increase, resulting in a decrease in the smoke exhaust efficiency and affecting the overall performance of oil-gas separation; for oil droplets with a smaller particle size, the filtering effect may not be ideal, and it is difficult to achieve efficient separation. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an oil-gas separation device with a clever structure and a high oil-gas separation rate, and a cooking appliance using the oil-gas separation device.

[0005] To solve the above technical problems, the present invention provides an oil-gas separation device, which includes a skeleton, an oil-gas separation component, and a cover;

[0006] One side of the skeleton is open outward and is formed with an installation groove with an accommodation cavity inside for installing the oil-gas separation component;

[0007] The oil-gas separation component includes a bracket main body and a plurality of separation sheets. A plurality of card slots are arranged at intervals on opposite sides of the bracket main body, and the separation sheets are installed in the card slots at intervals, and a channel for the oil and gas to pass through is formed between adjacent separation sheets;

[0008] The cover includes a cover side plate and hook assemblies symmetrically arranged at both ends. The hook assemblies extend outward relative to the cover side plate. The cover is used to be installed on the open end of the skeleton to fix the oil-gas separation assembly.

[0009] Preferably, the separation sheet includes a first oil-gas separation surface and a second oil-gas separation surface. The first oil-gas separation surface, the second oil-gas separation surface, and the first oil-gas separation surface are connected in sequence. The first separation surface and the second separation surface are arranged at a first included angle, and the first included angle is 100° - 120°. The second oil-gas separation surface bulges in the middle on the side facing the first included angle.

[0010] Preferably, a connecting portion is provided at the end of the first oil-gas separation surface. The connecting portion and the first oil-gas separation surface are arranged at a second included angle, and the second included angle is 100° - 150°.

[0011] Preferably, the distance between adjacent connecting portions is greater than the distance between the first included angle and the first oil-gas separation surface on the same side in adjacent separation sheets.

[0012] Preferably, first limiting bumps are provided on the inner wall of the skeleton, and first buckles facing downward are provided on the bracket body. After the oil-gas separation assembly is installed into the skeleton, the first buckles are buckled and connected with the first limiting bumps.

[0013] Preferably, a first step recessed downward is provided on the upper wall of the skeleton. A through first limiting hole is opened at the end of the first step. After the cover is connected with the skeleton, the first step corresponds to the position of the hook assembly. The hook assembly is provided with hooks facing downward, and the hooks are buckled and connected with the limiting holes.

[0014] Preferably, a first step recessed downward is provided on the upper wall of the skeleton. Second limiting bumps protruding upward are provided on the first step. After the cover is connected with the skeleton, the first step corresponds to the position of the hook assembly. The hook assembly is provided with a through second limiting hole, and the second limiting hole is in fit connection with the second limiting bumps.

[0015] Preferably, the oil-gas separation assembly further includes a riveting sheet and a spring. A plurality of connection holes are opened on the riveting sheet. At least an upper rotating shaft and a lower rotating shaft are provided at the end of the separation sheet. The upper rotating shaft is movably connected with the connection holes, and the lower rotating shaft is movably connected with the card slots. One end of the spring is fixedly connected with the riveting sheet and the other end is fixedly connected with the bracket body. The spring can drive the plurality of separation sheets to rotate towards the side of the spring through the riveting sheet.

[0016] Preferably, the oil-gas separation component further includes a connecting bracket, a switch and a shrapnel. The connecting bracket is fixedly connected to the riveting piece. A through switch hole is formed in the side surface of the bracket body. The switch passes through the switch hole and is fixedly connected to the connecting bracket. The shrapnel is a wavy shrapnel including upper and lower layers. The shrapnel is fixedly connected between the riveting piece and the bracket body. The switch is limited between the shrapnels.

[0017] The present invention also provides a cooking appliance, which includes an exhaust smoke pipe, an oil receiving box and the oil-gas separation device as described in any one of the above. The oil-gas separation device is arranged in the exhaust smoke pipe. When the flue gas is discharged through the exhaust smoke pipe, the oil-gas separation device adsorbs the oil in the flue gas and stores it in the oil receiving box.

[0018] Compared with the prior art, the oil-gas separation device and the cooking appliance of the present solution at least have the following beneficial effects:

[0019] 1. The oil-gas separation device of the present solution is composed of a detachable skeleton, an oil-gas separation component and a cover, and uses a plurality of separation sheets to realize the adsorption and separation of oil stains in the oil fume. The plurality of separation sheets form a plurality of channels for the oil fume to pass through. When the oil fume enters the channels, the oil stain components first contact the separation surface and adhere to it, and the flue gas is discharged from the channels, avoiding the blockage of the oil-gas separation device by oil stains after long-term use, and realizing efficient separation with a long service life.

[0020] 2. Further, the separation sheets of the present solution adopt a W double-wing structure in which the first oil-gas separation surface, the second oil-gas separation surface and the first oil-gas separation surface are connected in sequence. The plurality of separation sheets are arranged in an array, which can effectively increase the inlet area of the oil fume and facilitate the entry of the oil fume. At the same time, due to the W double-wing structure, the channels between adjacent separation sheets are smaller than the inlet, effectively improving the oil-gas separation degree;

[0021] 3. Further, the oil-gas separation component of the present solution sets a rotating shaft on the separation sheet and combines a plurality of separation sheets through a riveting piece, so that the rotation angle of the separation sheet can be controlled, that is, the oil stains on the separation sheet can be cleaned, and dust and small animals can be prevented from entering when the electrical appliance is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Specifically illustrated by the preferred embodiments of the present invention shown in the drawings, the above and other objects, features and advantages of the present invention will become clearer. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0023] Figure 1 It is a schematic structural diagram of the skeleton of the oil-gas separation device provided by the embodiment of the present invention;

[0024] Figure 2 Schematic structural diagram of the oil-gas separation component of the oil-gas separation device provided by the embodiment of the present invention;

[0025] Figure 3 Schematic structural diagram of the cover of the oil-gas separation device provided by the embodiment of the present invention;

[0026] Figure 4 Schematic cross-sectional view of the oil-gas separation device provided by the embodiment of the present invention from the first angle;

[0027] Figure 5 is Figure 4 Enlarged view at A in

[0028] Figure 6 is Figure 4 Enlarged view at B in

[0029] Figure 7 Schematic cross-sectional view of the oil-gas separation device provided by the embodiment of the present invention from the second angle;

[0030] Figure 8 is Figure 7 Enlarged view at C in

[0031] Figure 9 Schematic cross-sectional view of the separation sheet of the oil-gas separation device provided by the embodiment of the present invention;

[0032] Figure 10 Schematic structural diagram of the elastic sheet of the oil-gas separation device provided by the preferred embodiment of the present invention;

[0033] Figure 11 Schematic structural diagram of the oil-gas separation device provided by the preferred embodiment of the present invention;

[0034] Figure 12 is Figure 11 Enlarged view at D in

[0035] Figure 13 is Figure 11 Enlarged view at E in

[0036] Figure 14 Schematic structural diagram of the cover of the oil-gas separation device provided by another preferred embodiment of the present invention;

[0037] Figure 15 Schematic structural diagram of the oil-gas separation device provided by another preferred embodiment of the present invention. Detailed implementation manners

[0038] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments cited are not intended to limit the present invention. In the present embodiment, it should be understood that the orientations or positional relationships indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0039] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in the present invention are for illustrative purposes only.

[0040] Please refer to Figures 1 - 9 The embodiment of the present invention provides an oil-gas separation device, which includes a frame 1, an oil-gas separation component 2 and a cover 3. The oil-gas separation component 2 is detachably installed in the frame 1, and the cover 3 is detachably connected to the frame 1 to fix the oil-gas separation component 2 in the frame 1. The oil-gas separation device is used to be installed on the exhaust passage of the cooking utensil. The oil smoke is separated and adsorbed by the oil-gas separation device and then discharged, thereby achieving adsorption and separation of oil pollution. Specifically, the oil-gas separation device includes the following structure:

[0041] Please refer to Figure 1 One side of the frame 1 is open to the outside, and a mounting groove 101 with a receiving cavity is formed inwardly for mounting the oil-gas separation component 2. It can be understood that the "open to the outside" mentioned here means that one side of the frame 1 is open without any shielding, and other components can be installed in the mounting groove 101 from this side. The middle part of the frame 1 is hollow, that is, the shape of the frame 1 is "口" or "凵", which corresponds to the position of the separation sheet 202 of the oil-gas separation component 2, and is used for oil smoke to pass through.

[0042] Please refer to Figure 2 , Figures 7 - 8, the oil-gas separation component 2 includes a bracket main body 201 and a plurality of separation sheets 202. A plurality of card slots 203 are arranged at intervals on opposite sides of the bracket main body 201, and the separation sheets 202 are installed in the card slots 203 at intervals, and a channel for oil and gas to pass through is formed between adjacent separation sheets 202. It can be understood that the size of the bracket main body 201 corresponds to and matches the size of the installation groove 101, so that the bracket main body 201 can be pushed into the installation groove 101; by adopting a structure with a plurality of separation sheets 202 and forming a channel, the risk that the oil and gas separation component 2 will be blocked by oil stains after long-term use can be avoided.

[0043] Please refer to Figure 3 , the cover 3 is used to be installed with the open end of the skeleton 1 to fix the oil-gas separation component 2; the cover 3 includes a cover side plate 301 and hook assemblies 302 symmetrically arranged at both ends. The hook assemblies 302 extend outward relative to the cover side plate 301. It can be understood that the outward extension of the hook assemblies 302 mentioned here means that the hook assemblies 302 extend out relative to the cover side plate 301. When the cover 3 is installed and connected to the skeleton 1, the hook assemblies 302 extend into the skeleton 1 and are fixedly connected to the skeleton 1 relatively.

[0044] The oil-gas separation device of this embodiment adopts a detachable oil-gas separation component 2 and a cover 3 to be installed and connected with the skeleton 1, and the structure is easy to assemble; by using the separation sheet 202 as the main component for separating and adsorbing oil stains, the phenomenon of oil stain accumulation and blockage can be avoided, and both the oil stain separation efficiency and the service life are relatively high.

[0045] Please refer to Figures 7 - 9 , in this embodiment, the separation sheet 202 includes a first oil-gas separation surface 204 and a second oil-gas separation surface 205. The first oil-gas separation surface 204, the second oil-gas separation surface 205 and the first oil-gas separation surface 204 are connected in sequence. The first separation surface and the second separation surface are arranged at a first included angle 206, and the first included angle 206 is 100°-120°. The second oil-gas separation surface 205 bulges in the middle on the side facing the first included angle 206. It can be understood that both sides of the second oil-gas separation surface 205 are connected to the first oil-gas separation surface 204 and the second oil-gas separation surface 205 and the first oil-gas separation surface 204 form a certain included angle, and the first included angle 206 is 100°-120°. At the same time, the middle of the second oil-gas separation surface 205 bulges, so that the separation sheet 202 forms a structure in the shape of a W double-wing. Since the separation sheet 202 is arranged vertically when the oil-gas separation device is working, that is, it is in the shape of or in the shape of Set, at this time, when the fume passes through the oil-gas separation component 2, it will first contact the first oil-gas separation surface 204, and the oil stain will be attached to the separation sheet 202. In addition, due to the W-shaped structure, a centrifugal area is formed in the middle of the separation sheet 202. That is, when the oil-gas volume of the fume is particularly large, the fume will be laterally filtered through the second oil-gas separation surface 205 to achieve secondary separation of the fume, so as to improve the separation success rate.

[0046] Furthermore, as Figure 9 shown, the first included angle 206 formed by the first oil-gas separation surface 204 and the second oil-gas separation surface 205 is processed by an arc. Therefore, the angle of the first included angle 206 being 100°-120° refers to the included angle formed by the central extension lines of the first oil-gas separation surface 204 and the second oil-gas separation surface 205. Exemplarily, the angle of the first included angle 206 can be 100°, 110°, 120°, etc. Processing the first included angle 206 by an arc can make the transition between the first oil-gas separation surface 204 and the second oil-gas separation surface 205 smoother. When the grease adheres, this angle range is more conducive to the dripping of the oil stain, reducing the residue of the oil stain and playing a better oil-repellent role. Further, the separation sheet 202 is made of a metal material, which can be a composite metal material such as aluminum alloy or stainless steel, and the thickness is 1mm-1.2mm. In this way, it can play a role in lightening the weight, and the production is simple and the structure is stable. Combined with the W-shaped structure, it will not deform and cause performance degradation under the working conditions of high temperature and strong wind.

[0047] Please refer to Figure 9, in this embodiment, a connecting portion 207 is provided at the end of the first oil-gas separation surface 204. Understandably, the connecting portions 207 are provided at the ends of the first oil-gas separation surfaces 204 at both ends of the separating sheet 202. The connecting portion 207 is equivalent to the outward extension of the first oil-gas separation surface 204 and is used to connect with the card slot 203 to fix the position of the separating sheet 202. The connecting portion 207 is arranged at a second included angle 218 with the first oil-gas separation surface 204, and the second included angle 218 is also subjected to an arc treatment. When the oil fume enters from the channel between the adjacent separating sheets 202, when the oil stain contacts the second included angle 218, the smooth second included angle 218 helps the oil stain to drip and reduces the residue of the oil stain. The second included angle 218 is 100°-150°, and preferably can be angles such as 100°, 110°, 120°, 130°, 140°, 150°, etc. The angle of the second included angle 218 will affect the distance at the narrowest part between the adjacent separating sheets 202, thereby affecting the speed of the oil fume entering the channel and the separation efficiency. If the angle is too large, the distance between the adjacent separating sheets 202 will be too large, and the oil fume will directly pass through without being adsorbed and separated, resulting in a low oil-gas separation rate of the oil-gas separation device; if the angle is too small, the distance between the adjacent separating sheets 202 will be too small, which will affect the air flow rate per minute of the oil-gas separation device and the oil-gas separation efficiency.

[0048] Please refer to Figures 7 - 9In a further embodiment, the spacing distance between adjacent connecting portions 207 is greater than the distance between the first angle 206 in the adjacent separation sheets 202 and the first oil-gas separation surface 204 on the same side. It can be understood that since the separation sheet 202 adopts a W-shaped double-wing structure and a connecting portion 207 for connecting and fixing is provided outward, the spacing distances between adjacent separation sheets 202 are not completely consistent. At the oil fume entrance, that is, the spacing distance between adjacent connecting portions 207 will be larger, so as to ensure the entry of oil fume; secondly, in two adjacent separation sheets 202, when on the same side, the distance from the first angle 206 of one of the separation sheets 202 to the first oil-gas separation surface 204 of the adjacent separation sheet 202 is less than the spacing distance between adjacent connecting portions 207. For example, the distance between the first angle 206 and the first oil-gas separation surface 204 on the same side may refer to the shortest distance from the first angle 206 to the first oil-gas separation surface 204 on the same side, which is less than the spacing distance between adjacent connecting portions 207, or the farthest distance from the first angle 206 to the first oil-gas separation surface 204 on the same side, which is less than the spacing distance between adjacent connecting portions 207. Such a structural setting can narrow the channel at some positions, so that the first oil-gas separation surface 204 has more contact area with the oil smoke to improve the oil-gas separation rate. In addition, the middle part of the second oil-gas separation surface 205 is a convex structure, so that the spacing distance between adjacent separation sheets 202 in the interval of the second oil-gas separation surface 205 becomes larger, so that the area forms a centrifugal area. When the amount of oil smoke is huge, the oil smoke that has not been discharged in time will accumulate in the area of ​​the second oil-gas separation surface 205 and undergo a lateral secondary separation through the second oil-gas separation surface 205, thereby improving the oil-gas separation rate in the case of a large amount of oil smoke.

[0049] Please refer to Figure 1 , Figures 4 - 6, in this embodiment, first limiting bumps 102 are provided on the inner wall of the skeleton 1, and first buckles 208 facing downward are provided on the bracket body 201. After the oil-gas separation assembly 2 is installed into the skeleton 1, the first buckles 208 are buckled to the first limiting bumps 102. Exemplarily, the first limiting bumps 102 are provided on the lower inner wall of the skeleton 1, and the lower bottom surface of the bracket body 201 is provided with the first buckles 208 facing downward. The first buckles 208 and the bracket body 201 can be integrally formed, and they have a certain elasticity. Specifically, they can be in an inverted hook-like structure facing downward, and their positions correspond to the positions of the first limiting bumps 102. When the oil-gas separation assembly 2 is pushed into the skeleton 1, the first buckles 208 first move upward under the action of the first limiting bumps 102. After passing over the first limiting bumps 102, the first buckles 208 are buckled to the first limiting bumps 102. If it is necessary to replace the oil-gas separation assembly 2, only need to pull the oil-gas separation assembly 2 outward with force, and the first buckles 208 can also move upward under the action of the first limiting bumps 102 to disengage. In this way, the relative fixation and detachable connection of the oil-gas separation assembly 2 are realized.

[0050] Please refer to Figure 1 , Figures 4 - 6 , in a preferred embodiment, a first step 103 recessed downward is provided on the upper wall of the skeleton 1, and a through first limiting hole 104 is opened at the end of the first step 103. After the cover 3 is connected to the skeleton 1, the first step 103 corresponds to the position of the hook assembly 302. The hook assembly 302 is provided with a hook facing downward, and the hook is buckled to the first limiting hole 104. It can be understood that the depth of the first step 103 recessed downward corresponds to the thickness of the hook assembly 302. When the hook assembly 302 is fixedly connected to the first step 103, the hook portion of the hook assembly 302 is hooked into the first limiting hole 104, so that the cover 3 and the skeleton 1 are relatively fixedly connected. At this time, the hook assembly 302 is flush with the upper surface of the skeleton 1. The cover 3 and the skeleton 1 are installed and fixed through the cooperation of the limiting hole and the hook assembly 302, realizing a screwless design, with easy installation and assembly of the structure and high production efficiency.

[0051] Please refer to Figure 1 , Figures 4 - 6, in a preferred embodiment, a downwardly concave first step 103 is provided on the upper wall of the skeleton 1, and a raised second limiting bump 105 is provided on the first step 103. After the cover 3 is connected to the skeleton 1, the first step 103 corresponds to the position of the hook assembly 302. The hook assembly 302 is provided with a through second limiting hole 303, and the second limiting hole 303 is connected in cooperation with the second limiting bump 105. It can be understood that the depth of the downward concavity of the first step 103 corresponds to the thickness of the hook assembly 302. When the hook assembly 302 is fixedly connected to the first step 103, the second limiting bump 105 is connected in cooperation with the second limiting hole 303, so that the cover 3 and the skeleton 1 are relatively fixedly connected. At this time, the hook assembly 302 is flush with the upper surface of the skeleton 1. The cover 3 and the skeleton 1 are installed and fixed by the cooperation of the limiting hole and the limiting bump, realizing a screwless design, with a structure that is easy to install and assemble and high production efficiency.

[0052] Exemplarily, a first limiting hole 104 and a second limiting bump 105 can be simultaneously provided on the first step 103 of the skeleton 1, and a hook and a second limiting hole 303 are correspondingly provided on the hook assembly 302 at the same time. In this way, the connection between the cover 3 and the skeleton 1 can be fixed bidirectionally and is not easily detached during use.

[0053] Please refer to Figures 11 - 13 , in other preferred embodiments, the oil-gas separation assembly 2 further includes a riveting piece 209 and a spring 210. The riveting piece 209 is provided with a plurality of connection holes 211. At least an upper rotating shaft 212 and a lower rotating shaft 213 are provided at the end of the separating piece 202. The upper rotating shaft 212 is movably connected to the connection hole 211, and the lower rotating shaft 213 is movably connected to the card slot 203. One end of the spring 210 is fixedly connected to the riveting piece 209 and the other end is fixedly connected to the bracket main body 201. The spring 210 can drive a plurality of separating pieces 202 to rotate towards the spring 210 side through the riveting piece 209. It can be understood that the riveting piece 209 connects a plurality of or all separating pieces 202 together through the connection holes 211, connects through the upper rotating shaft 212 to the riveting piece 209, and connects through the lower rotating shaft 213 to the card slot 203, so that the separating piece 202 can rotate with the lower rotating shaft 213 as the rotation fulcrum. The end of the riveting piece 209 is fixedly connected to the bracket main body 201 through the spring 210. Under the action of the pulling force of the spring 210, the separating piece 202 rotates towards the spring 210 side. In this way, the position of the separating piece 202 can be further fixed, and the stability of the separating piece 202 can still be maintained under the condition of a large air volume.

[0054] Please refer to Figures 11 - 13, Exemplarily, upper rotating shafts 212, middle rotating shafts, and lower rotating shafts 213 can be provided at both ends of the separation piece 202. The upper rotating shaft 212 and the middle rotating shaft are both connected to the riveting piece 209, and the lower rotating shaft 213 is movably connected to the card slot 203. By providing more middle rotating shafts, the positions of the separation piece 202 and the riveting piece 209 can be further fixed.

[0055] Please refer to Figures 10 - 13 , in this preferred embodiment, the oil-gas separation assembly 2 further includes a connection bracket 214, a switch 215, and a spring piece 216. The connection bracket 214 is fixedly connected to the riveting piece 209. A through switch hole 217 is provided on the side surface of the bracket body 201. After passing through the switch hole 217, the switch 215 is fixedly connected to the connection bracket 214. The spring piece 216 is a wavy spring piece 216 including upper and lower layers. The spring piece 216 is fixedly connected between the riveting piece 209 and the bracket body 201, and the switch 215 is limited between the spring pieces 216. It can be understood that the connection bracket 214 is fixedly connected to the riveting piece 209 on the side facing the cover 3, and the switch 215 is fixedly connected to the connection bracket 214 after passing through the switch hole 217. At this time, when the switch 215 is pushed to move within the stroke of the switch hole 217, the riveting piece 209 can be driven to move in the same direction, and the riveting piece 209 is connected to the separation piece 202, so that the separation piece 202 can be driven to rotate. The range of the rotation angle depends on the stroke distance of the switch hole 217. In this embodiment, the rotation angle of the separation piece 202 is 0°-90°. When the rotation angle is 0°, that is, without rotation, the separation piece 202 can withstand the maximum oil fume gas flow. When the rotation angle is 90°, the separation pieces 202 are in contact with each other, and at this time, the oil-gas separation assembly 2 is in a closed state. The spring piece 216 is used to limit the position of the switch 215 in the switch hole 217. There are two layers of spring pieces 216, and the switch 215 is arranged between the two layers of spring pieces 216. The wavy spring piece 216 enables the switch 215 to be fixed at different positions of the spring piece 216, that is, at different positions of the switch hole 217. In this way, under the action of the switch 215, the spring piece 216, and the riveting piece 209, the separation piece 202 can rotate at different angles and be relatively fixed, so as to control the separation effect between the separation piece 202 and the oil fume and the width of the channel between the separation pieces 202. It can be understood that the spring piece 216 is arranged on the side far from the spring 210. As Figures 11 - 13 shown, the spring 210 is arranged on the right side of the oil-gas separation assembly 2, and the spring piece 216 is fixed on the left side of the switch hole 217. In this way, the spring 210 will maintain a continuous rightward pulling force, so that when the switch 215 is located at the rightmost side, it can be more stable. At this time, the separation piece 202 is in a completely closed state, which can prevent dust from entering the interior of the oil-gas separation device or the interior of the electrical appliance when not in use, and can also prevent small animals such as cockroaches from entering, protecting the circuit of the electrical appliance.

[0056] In other embodiments, the switch 215 can be set as an internal switch built between the oil-gas separation component 2 and the framework 1. A driving device is arranged on one side of the switch 215, and the output end of the driving device abuts against or is fixedly connected to the switch 215. A control panel is arranged on the oil-gas separation device or the electrical appliance. By controlling the driving device, the movement stroke of the internal switch can be driven to control the rotation angle of the separation piece 202. In this way, intelligent control can be achieved, and the stroke of the internal switch becomes stepless control, that is, the rotation angle of the separation piece 202 can be any angle from 0° to 90°. In this way, the oil-gas separation device can automatically control the angle of the separation piece 202 according to the gas flow rate of the oil fume, and the best oil-gas separation rate can be maintained.

[0057] Please refer to Figures 14 - 15 , in other embodiments, an oil receiving box 304 is arranged on the side surface of the cover 3. The oil receiving box 304 and the cover 3 are provided with oil leakage holes penetrating through both of them. When the oil-gas separation device is in use, the oil-gas separation device is arranged obliquely towards the side of the oil receiving box 304. When the oil stains adsorbed on the separation piece 202 will flow along the separation piece 202 to the end and flow into the oil receiving box 304, so as to realize the storage of the oil stains. Further, an oil quantity sensor 305 is arranged at one end of the oil receiving box 304, which is used to detect the liquid level height or the oil quantity in the oil receiving box 304. When the oil quantity reaches the warning line, an alarm is issued to remind the user to clean it, so as to avoid the oil stains flowing out of the oil receiving box 304 and becoming difficult-to-clean oil stains.

[0058] To illustrate the oil-gas separation effect of the oil-gas separation device in this embodiment, this embodiment is tested according to the oil separation degree test method in Appendix E of the national standard "GB / T17713-2022 Range Hoods and Other Cooking Fume Exhaust Devices", and the following experimental results are obtained:

[0059] Table 1 Experimental Results of Oil Separation Degree

[0060]

[0061] It can be seen from Table 1 that according to the test method of the national standard for the oil separation degree, the oil-gas separation device of this embodiment is used for the test. By weighing the whole machine mass, the oil droplet mass and the mass of the oil-gas separation device respectively, the mass difference of these components before and after the test can be calculated, so as to calculate that the oil separation degree of the equipment using the oil-gas separation device of this embodiment is 97.12%, indicating that the oil-gas separation device of this embodiment has excellent oil-gas separation effect.

[0062] An embodiment of the present invention further provides a cooking appliance, which includes an exhaust duct, an oil receiving box, and the oil-gas separation device as described in any one of the above. The oil-gas separation device is disposed in the exhaust duct. When the flue gas is discharged through the exhaust duct, the oil-gas separation device adsorbs the oil in the flue gas and stores it in the oil receiving box.

[0063] In this specification, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] In the description of this specification, the description with reference to terms such as "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. An oil-gas separation device, characterized in that: It includes a frame, an oil-gas separation component and a cover; One side of the frame is open to the outside and has an installation groove with an accommodation cavity formed inwardly for installing the oil-gas separation component; The oil-gas separation assembly comprises a support body and a plurality of separation sheets, wherein a plurality of slots are arranged at intervals on two opposite sides of the support body, and the separation sheets are installed on the slots at intervals, and channels for oil and gas to pass through are formed between adjacent separation sheets; The cover comprises a cover side plate and hook components symmetrically arranged at both ends, the hook components extend outward relative to the cover side plate, and the cover is used to be installed with the open end of the frame to fix the oil-gas separation component.

2. The oil-gas separation device according to claim 1, characterized in that: The separation sheet includes a first oil-gas separation surface and a second oil-gas separation surface, the first oil-gas separation surface, the second oil-gas separation surface and the first oil-gas separation surface are connected in sequence, the first separation surface and the second separation surface are arranged at a first angle, the first angle is 100°-120°, and the second oil-gas separation surface is convex in the middle on the side facing the first angle.

3. The oil-gas separation device according to claim 2, characterized in that: A connecting portion is disposed at the end of the first oil-gas separation surface. The connecting portion and the first oil-gas separation surface are disposed at a second angle, and the second angle is 100°-150°.

4. The oil-gas separation device according to claim 3, characterized in that: The spacing distance between adjacent connecting portions is greater than the distance between the first angle in adjacent separation sheets and the first oil-gas separation surface on the same side.

5. The oil-gas separation device according to claim 1, characterized in that: A first limiting protrusion is arranged on the inner wall of the skeleton, and a first buckle facing downward is arranged on the bracket body. When the oil-gas separation component is installed into the skeleton, the first buckle is buckled and connected with the first limiting protrusion.

6. The oil-gas separation device according to claim 1, characterized in that: The upper wall of the skeleton is provided with a first step concave downward, and a through first limiting hole is opened at the end of the first step. When the cover is connected to the skeleton, the first step corresponds to the position of the hook assembly, and the hook assembly is provided with a downward hook, and the hook is snap-connected with the first limiting hole.

7. The oil-gas separation device according to claim 1, characterized in that: The upper wall of the skeleton is provided with a first step which is concave downwards, and the first step is provided with a raised second limiting bump. When the cover is connected to the skeleton, the first step corresponds to the position of the hook assembly, and the hook assembly is provided with a through second limiting hole, and the second limiting hole is cooperatively connected with the second limiting bump.

8. The oil-gas separation device according to claim 1, characterized in that: The oil-gas separation component also includes a rivet sheet and a spring, wherein a plurality of connection holes are formed on the rivet sheet, and at least an upper rotating shaft and a lower rotating shaft are provided at the end of the separation sheet, wherein the upper rotating shaft is movably connected to the connection hole, and the lower rotating shaft is movably connected to the slot, and one end of the spring is fixedly connected to the rivet sheet and the other end is fixedly connected to the bracket body, and the spring can drive the plurality of separation sheets to rotate toward one side of the spring through the rivet sheet.

9. The oil-gas separation device according to claim 8, characterized in that: The oil-gas separation component also includes a connecting bracket, a switch and a spring sheet. The connecting bracket is fixedly connected to the rivet sheet. A through switch hole is provided on the side of the bracket body. The switch is fixedly connected to the connecting bracket after passing through the switch hole. The spring sheet is a wavy spring sheet including an upper and lower layer. The spring sheet is fixedly connected between the rivet sheet and the bracket body, and the switch is limited between the spring sheets.

10. A cooking utensil, characterized in that: It comprises a smoke exhaust pipe, an oil receiving box and an oil-gas separation device as described in any one of claims 1 to 9, wherein the oil-gas separation device is arranged in the smoke exhaust pipe, and when the smoke is discharged through the smoke exhaust pipe, the oil-gas separation device absorbs the oil in the smoke and stores it in the oil receiving box.

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