Oil fume purification device

Abstract

The present invention discloses an oil fume purification device, wherein the oil fume purification device comprises a housing and a filter assembly; the housing has a smoke inlet, a smoke outlet and an air duct connecting the smoke inlet and the smoke outlet; the filter assembly is rotatably installed in the air duct, and the filter assembly comprises a filter cartridge, a plurality of filter holes are arranged on the filter cartridge, the rotation axis of the filter cartridge extends along the length direction thereof, and the outer diameter of the filter cartridge is gradually increased from one end thereof to the other end thereof in the extension direction of the rotation axis of the filter cartridge. The oil fume purification device of the present invention can improve the condensation efficiency of oil, avoid the accumulation and blockage of oil on the filter cartridge, and increase the flow rate of oil on the filter cartridge, so that the oil can drip smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an oil fume purification device. Background Art

[0002] In order to separate the grease from the oil fume, the current oil fume purification device generally uses a flat filter to filter the oil fume. Generally, in order to improve the grease separation degree, some filter shapes use a positive cone or an inverted cone to increase the filter surface area, thereby improving the filtering effect. However, since the contact effect between this type of flat filter and the grease is still poor, the grease separation is not thorough enough.

[0003] In addition, due to the long-term use of the filter, grease will adhere to the surface of the filter, causing the through-hole performance of the filter to decrease, thereby affecting the filtering effect; at the same time, since the through-holes on the filter are clogged with grease, the wind resistance of the filter will increase, affecting the smoke extraction efficiency of the range hood.

[0004] The above contents are only used to assist in understanding the technical solution of the invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide an oil fume purification device, aiming to improve the problem that the filtering effect of the existing oil fume purification device is not ideal.

[0006] To achieve the above-mentioned purpose, the oil fume purification device proposed in the present invention includes a housing and a filter assembly;

[0007] The housing has a smoke inlet, a smoke exhaust outlet, and an air duct connecting the smoke inlet and the smoke exhaust outlet;

[0008] The filter assembly can be rotatably installed in the air duct, and the filter assembly includes a filter cartridge. The filter cartridge is provided with a plurality of filter holes. The rotation axis of the filter cartridge extends along its length direction. In the extension direction of the rotation axis of the filter cartridge, the outer diameter of the filter cartridge is gradually increased from one end to the other end.

[0009] In one embodiment, the smoking port extends along the transverse direction of the housing, and the filter cartridge extends along the length direction of the smoking port.

[0010] In one embodiment, the filter assembly includes a plurality of filter cartridges, and the plurality of filter cartridges are arranged along the transverse direction of the housing and along the same axial direction.

[0011] In one embodiment, the filter assembly also includes a plurality of rotating blades, which are disposed in the filter cartridge and extend along the length direction of the filter cartridge. The plurality of rotating blades are arranged at intervals along the circumference of the filter cartridge so that the rotating blades can drive the filter cartridge to rotate around its rotation axis under the action of airflow.

[0012] In one embodiment, the rotating blades include a plurality of first rotating blades and a plurality of second rotating blades arranged along the transverse direction of the casing, and the filter cartridge includes a first filter cartridge and a second filter cartridge arranged along the transverse direction of the casing, a plurality of the first rotating blades are connected and installed in the first filter cartridge, and a plurality of the second rotating blades are connected and installed in the second filter cartridge.

[0013] In one embodiment, the width of the first rotating blade is gradually increased from an end away from the second rotating blade to an end close to the second rotating blade; the width of the second rotating blade is gradually increased from an end away from the first rotating blade to an end close to the first rotating blade, and the end of the second rotating blade close to the first rotating blade corresponds to the fan setting of the oil fume purification device.

[0014] In one embodiment, on the rotation axis of the first filter cartridge, the outer diameter of the first filter cartridge is gradually increased from one end away from the second filter cartridge to one end close to the second filter cartridge, and on the rotation axis of the second filter cartridge, the outer diameter of the second filter cartridge is gradually increased from one end away from the first filter cartridge to one end close to the first filter cartridge.

[0015] In one embodiment, the filter assembly further includes an adjusting assembly, one end of which is connected to the end of the filter assembly and the other end of which abuts against the housing, so that the gap between the end of the filter assembly and the housing is adjustable.

[0016] In one embodiment, the oil fume purification device further includes an oil cup, and the oil cup is correspondingly arranged below the filter cartridge to collect the oil stains flowing down from the filter cartridge.

[0017] In one embodiment, the casing includes a back plate and a smoke shield panel that are relatively arranged, and the back plate and the smoke shield panel together form an air inlet section of the air duct. The filter assembly is arranged in the air inlet section, and the inner wall surface of the back plate and / or the inner wall surface of the smoke shield panel is provided with an oil guide member, and the oil guide member is arranged between the oil cup and the filter cylinder to collect the oil stains flowing down from the filter cylinder and guide the oil stains to drip into the oil cup.

[0018] In one embodiment, the oil guide member includes a first oil guide strip and a second oil guide strip, the first oil guide strip is connected to the inner wall surface of the back plate, the second oil guide strip is connected to the inner wall surface of the smoke barrier panel, and the first oil guide strip and the second oil guide strip are spaced apart from each other.

[0019] In one embodiment, the filter assembly further comprises a protective cover, and the protective cover is arranged corresponding to the end of the filter cartridge, so that the connecting piece at the end of the filter cartridge is located inside the protective cover or below the protective cover.

[0020] In one embodiment, the oil fume purification device is an integrated stove, the housing includes a machine head and a machine body connected to the lower end of the machine head, the machine head is provided with the smoke outlet, the filter assembly is rotatably mounted on the machine head and is located below the smoke outlet, the integrated stove also includes a fan, and the fan is arranged in the air duct of the machine body.

[0021] The oil fume purification device of the present invention is provided with a rotatable filter assembly in the air duct, and in the extension direction of the rotation axis of the filter cartridge, the outer diameter of the filter cartridge is gradually increased from one end to the other end. The filter assembly rotates and continuously collides with the airflow, intercepting the oil fume in multiple dimensions, greatly lengthening the oil fume condensation path, so that particulate matter such as grease in the airflow is quickly and effectively intercepted, and the oil condensation efficiency is improved. When the filter cartridge rotates, the grease attached to the filter cartridge is thrown out to the outside of the filter cartridge under the action of centrifugal force and concentrated on the inner wall of the casing, which is convenient for the centralized collection of the grease. When the grease is thrown out from the surface of the filter cartridge, the grease attached to the filter cartridge is greatly reduced, so that the filter cartridge can maintain good gas permeability, thereby avoiding the problem of large wind resistance in the filter cartridge, which helps to maintain the oil fume absorption efficiency of the oil fume purification device. And because the filter cartridge is set with a variable diameter, the filter cartridge as a whole has a diversion function, thereby increasing the flow rate of oil on the filter cartridge, allowing the oil to drip smoothly along the surface of the filter cartridge into the oil collecting tank below, reducing the chance of the fan being contaminated by oil smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a fume purification device of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the oil fume purification device after the smoke shielding panel is separated;

[0025] Figure 3 for Figure 2 Schematic diagram of part of the structure of the oil fume purification device;

[0026] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the oil fume purification device;

[0027] Figure 5 It is a structural schematic diagram of an embodiment of a filter assembly of an oil fume purification device of the present invention;

[0028] Figure 6 for Figure 5 A schematic diagram of the partial decomposition structure of the filtering component;

[0029] Figure 7 It is a structural schematic diagram of another embodiment of the filter assembly of the present invention;

[0030] Figure 8 It is a structural schematic diagram of another embodiment of the filter assembly of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of an embodiment of a smoke baffle of an oil fume purification device of the present invention;

[0032] Fig.10 for Figure 1 Schematic diagram of the cross-sectional structure of the oil fume purification device from another angle.

[0033] Description of Figure Numbers:

[0034] Label name Label name Label name 100 chassis 170 body 230 Adjustment components 110 Smoking port 200 Filter components 240 Protective cover 120 Smoke outlet 210 Filter cartridge 300 Oil cup 130 Air duct 211 Filter holes 400 Oil guide parts 140 Back Plate 212 Protrusion 410 First oil guide 150 Smoke barrier panel 213 Depression 420 Second oil guide 160 Machine head 220 Rotating blades 500 Fan

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0037] The invention provides an oil fume purification device.

[0038] In an embodiment of the present invention, as shown in FIG. 2 , the oil fume purification device comprises a housing 100 and a filter assembly 200. The housing 100 has a smoke inlet 110, a smoke outlet 120, and an air duct 130 connecting the smoke inlet 110 and the smoke outlet 120. The filter assembly 200 is rotatably installed in the air duct 130, and the filter assembly 200 comprises a filter cartridge 210, and a plurality of filter holes 211 are provided on the filter cartridge 210. The rotation axis of the filter cartridge 210 extends along the length direction thereof, and in the extension direction of the rotation axis of the filter cartridge 210, the outer diameter of the filter cartridge 210 is gradually increased from one end thereof to the other end thereof.

[0039] In the present embodiment, the oil fume purification device may be a range hood or an integrated stove. It is understandable that the filter assembly 200 is located downstream of the smoke outlet 110. When the oil fume purification device is a range hood, the smoke outlet 110 is arranged on the smoke collecting hood, and the filter assembly 200 is arranged between the smoke outlet 110 and the fan 500 in the air duct 130. Since the range hood usually exhausts smoke upward, the filter assembly 200 is located above the smoke outlet 110 and below the fan 500. When the oil fume purification device is an integrated stove, the smoke outlet 120 and the fan 500 are usually arranged on the lower side of the fuselage 170, so that the integrated stove exhausts smoke downward, and the filter assembly 200 is arranged below the smoke outlet 110 and above the fan 500.

[0040] The smoking port 110 usually extends in the transverse direction (horizontal direction) of the housing 100 to increase the air intake. The shape of the filter hole 211 on the filter cartridge 210 can be circular, triangular, rectangular, honeycomb, etc. The filter assembly 200 can be rotatably installed in the air duct 130, and the filter assembly 200 can be driven to rotate by a driving device, or by setting blades or improving the structure of the filter cartridge 210, so that the filter assembly 200 can rotate under the drive of the airflow. The filter cartridge 210 is generally cylindrical, and the cross-sectional shape of the filter cartridge 210 can be circular, elliptical, concave-convex arc, rectangular, special-shaped, etc. It should be noted that when the cross-sectional shape of the filter cartridge 210 is elliptical, the outer diameter of the filter cartridge 210 is the length of the major axis of the ellipse. When the cross-sectional shape of the filter cartridge 210 is concave-convex arc, rectangular or special-shaped, the outer diameter of the filter cartridge 210 is the equivalent outer diameter. The material of the filter cartridge 210 can be nylon mesh or metal mesh, etc. The cost of using the nylon mesh is low, and the filter cartridge 210 can be directly discarded after it becomes dirty, so as to be replaced with a new filter cartridge 210 .

[0041] By making the outer diameter of the filter cartridge 210 gradually increase from one end to the other end in the extension direction of the rotation axis of the filter cartridge 210. The filter cartridge 210 can extend in the up-down direction, or in the lateral direction of the housing 100, that is, in the left-right direction. When the filter cartridge 210 is stationary, especially when the filter cartridge 210 extends in the lateral direction of the housing 100, the oil can flow from the large end of the filter cartridge 210 to the small end. In this way, after the oil forms a short oil film on the filter cartridge 210, it can flow in the length direction of the filter cartridge 210, improve the circulation rate of the oil on the filter cartridge 210, and make the oil drip more smoothly, thereby avoiding the oil from staying on the filter cartridge 210 for a long time, resulting in clogging of the filter hole 211, resulting in large wind resistance and poor filtering effect. Specifically, the rotation speed of the filter assembly is greater than or equal to 250rpm, and less than or equal to 400rpm. So that the grease collection capacity of the filter cartridge 210 is optimal.

[0042] When the oil fume purification device is working, the cooking fume is sucked into the air duct 130 from the smoke outlet 110 under the action of the centrifugal fan 500, and the filter assembly 200 rotates to continuously collide and cut the airflow, intercepting the oil fume in multiple dimensions, greatly lengthening the oil fume condensation path, so that particulate matter such as grease in the airflow is quickly and effectively intercepted, and the oil condensation efficiency is improved. When the filter cartridge 210 rotates, the grease attached to the filter cartridge 210 is thrown out to the outside of the filter cartridge 210 under the action of centrifugal force, and concentrated on the inner wall of the housing 100, which is convenient for the centralized collection of grease. When the grease is thrown out from the surface of the filter cartridge 210, the grease attached to the filter cartridge 210 is greatly reduced, so that the filter cartridge 210 can maintain good gas permeability, thereby avoiding the problem of large wind resistance in the filter cartridge 210, which helps to maintain the oil fume absorption efficiency of the oil fume purification device. Furthermore, since the filter cartridge 210 is configured with a variable diameter as a whole, the filter cartridge 210 has a flow-guiding function, thereby increasing the flow rate of the oil on the filter cartridge 210, allowing the oil to smoothly drip into the oil collecting tank below along the surface of the filter cartridge 210, thereby reducing the probability of the fan 500 being contaminated by oil smoke, delaying the decline in the performance of the fan 500, and increasing the life of the entire machine.

[0043] In one embodiment, the smoking port 110 extends along the lateral direction of the housing 100 , and the filter cartridge 210 extends along the length direction of the smoking port 110 .

[0044] In this embodiment, the filter cartridge 210 is extended along the length direction of the inhalation port 110, and the extension direction of the filter cartridge 210 and the inhalation port 110 are consistent, so that the oil smoke entering the inhalation port 110 can be filtered by the filter cartridge 210, greatly reducing the oil smoke that enters the fan 500 without being filtered by the filter assembly 200. And the filter cartridge 210 is extended along the lateral direction of the housing 100, so that the filter cartridge 210 can be installed horizontally on the housing 100. It can be understood that when the filter cartridge 210 is an equal-diameter cylindrical structure, when the filter cartridge 210 is installed horizontally, the oil stains are easy to adhere to the filter cartridge 210 and are not easy to drip, so that in the long-term use process, the filter hole 211 will also be blocked, increasing the wind resistance and affecting the filtering effect. By making the filter cartridge 210 at least partially variable in diameter, when the filter cartridge 210 is stationary, the flow rate of oil on the filter cartridge 210 can be increased under the action of gravity, so that the oil can drip smoothly, thereby preventing the oil from clogging the filter hole 211, and improving the oil fume purification effect of the oil fume purification device.

[0045] Specifically, the filter assembly 200 includes a plurality of filter cartridges 210, and the plurality of filter cartridges 210 are arranged along the transverse direction of the housing 100 and along the same axial direction. The number of filter cartridges 210 may be two, three, or the like. The plurality of filter cartridges 210 may be coaxially arranged or non-coaxially arranged. Adjacent filter cartridges 210 are arranged at intervals to prevent mutual interference. It is understandable that when the filter cartridge 210 is an equal-diameter cylindrical structure, the plurality of filter cartridges 210 need to be installed horizontally. In order to ensure the filtering effect, the plurality of filter cartridges 210 need to be installed in a straight line to maintain the installation consistency of the plurality of filter cartridges 210. In this way, the axial runout and radial runout of a single filter cartridge 210 are required to be high, and the bearing force of a single filter cartridge 210 is large. By making the filter cartridge 210 a variable diameter cylindrical structure, when multiple filter cartridges 210 are installed horizontally, the force on a single filter cartridge 210 is balanced in the horizontal direction, so that the axial runout and radial runout requirements of the filter cartridge 210 are small, and the bearing force is relatively small. In other embodiments, only one filter cartridge 210 may be provided, so that the length of the entire filter cartridge 210 is consistent with the length of the inhalation port 110, thereby ensuring that the oil smoke entering from the inhalation port 110 can be filtered by the filter cartridge 210.

[0046] In one embodiment, the filter assembly 200 also includes a plurality of rotating blades 220 connected to the filter cartridge 210. The plurality of rotating blades 220 are disposed in the filter cartridge 210 and extend along the length direction of the filter cartridge 210. The plurality of rotating blades 220 are arranged at intervals along the circumference of the filter cartridge 210 so that the rotating blades 220 can drive the filter cartridge 210 to rotate around its rotation axis under the action of airflow.

[0047] In this embodiment, the number of the rotating blades 220 can be 3, 4, 5, 6, etc. The plurality of rotating blades 220 and the filter cartridge 210 can be arranged in one piece or separately. The plurality of rotating blades 220 can be connected to the peripheral wall of the filter cartridge 210. An end cap can also be arranged on the end face of the filter cartridge 210 so that the plurality of rotating blades 220 are connected to the end cap, so that it is convenient to clean the filter cartridge 210 and the rotating blades 220. The rotating blades 220 are generally in the form of a long plate structure, and their thickness is relatively thin, so as to have a relatively light weight, thereby facilitating rotation. In order to increase the airflow action area of ​​the rotating blades 220, the rotating blades 220 can also be twisted along the length direction. It can be understood that the rotating blades 220 can drive the filter cartridge 210 to rotate around its rotation axis under the action of the airflow. Then, the filter assembly 200 and the housing 100 are connected by rolling bearings, so that the filter assembly 200 has a small friction resistance or no friction when rotating, and can thus realize self-rotation. By setting the rotating blade 220, a force-bearing surface is provided for the airflow, so that the airflow flowing in through the filter hole 211 on the filter cartridge 210 acts on the rotating blade 220. After the airflow is blocked by the plate surface of the rotating blade 220, the airflow pushes the rotating blade 220 to rotate, thereby driving the entire filter assembly 200 to rotate. Then the airflow flows along the plate surface of the rotating blade 220, and then flows out of the filter cartridge 210 from the filter hole 211. In the process of the airflow pushing the rotating blade 220 and flowing through the filter hole 211, the filter cartridge 210 and the rotating blade 220 rotate and continuously collide with the airflow, so that the particles in the airflow, such as grease, are intercepted by the rotating blade 220 and the filter cartridge 210. The collision process can fully filter the airflow, enhance the filtering effect, and reduce the probability of the fan 500 being contaminated by oil smoke. Compared with driving the filter cartridge 210 to rotate by setting a driving device, using the flow of the airflow to drive the filter cartridge 210 to rotate, the structure of the whole machine is simplified and the cost is reduced.

[0048] In addition, in this solution, the filter cartridge 210 wraps the rotating blade 220, that is, when the airflow flows through the filter cartridge 210, it first collides with the filter cartridge 210 and then contacts the rotating blade 220, so that the filter cartridge 210 can rotate freely. The filter cartridge 210 is on the outermost side, which is conducive to the oil on the filter cartridge 210 being thrown out without being blocked by other parts. In addition, the filter cartridge 210 on the outermost side can increase the surface area and increase the probability of collision with oil smoke. Specifically, the outer surface of the filter cartridge 210 is cylindrical in shape as a whole, maintaining overall consistency, and is convenient for users to disassemble and wash.

[0049] In another embodiment, the peripheral wall of the filter cartridge 210 has a protrusion 212 and / or a recessed portion 213, and at least a portion of the protrusion 212 and / or the recessed portion 213 is provided with a filter hole 211, and at least a portion of the protrusion 212 and / or the recessed portion 213 is provided with a windshield, so that the filter cartridge 210 can rotate around its rotation axis under the action of the airflow. The setting of the windshield provides a force acting surface for the airflow. When the airflow flows through the filter assembly 200 and is blocked by the plane of the windshield, the airflow pushes the filter assembly 200 to rotate. Then the airflow flows along the plate surface of the windshield to the filter hole 211, and flows through the filter assembly 200 through the filter hole 211. In the process of the airflow pushing the windshield and flowing through the filter hole 211, the filter assembly 200 rotates and continuously collides with the airflow, so that the particulate matter in the airflow, such as grease, is intercepted by the windshield. The collision process can fully filter the airflow, enhance the filtering effect, and reduce the probability of the fan 500 system being contaminated by oil smoke. Since the windshield is a force-bearing component of the airflow, in order to ensure that the windshield is in contact with the airflow, the extension direction of the windshield width at least crosses the rotation direction of the filter cartridge 210. The provision of the protrusion 212 and / or the recess 213 ensures that the peripheral wall of the filter cartridge 210 can form a concave-convex structure, thereby ensuring that the windshield can serve as a force-bearing component of the airflow.

[0050] In combination with the above-mentioned embodiment with rotating blades 220, further, the rotating blades 220 include a plurality of first rotating blades 220 and a plurality of second rotating blades 220 arranged along the lateral direction of the casing 100, the filter cartridge 210 includes a first filter cartridge 210 and a second filter cartridge 210 arranged along the lateral direction of the casing 100, the plurality of first rotating blades 220 are connected and installed in the first filter cartridge 210, and the plurality of second rotating blades 220 are connected and installed in the second filter cartridge 210.

[0051] In this embodiment, the filter cartridge 210 includes a first filter cartridge 210 and a second filter cartridge 210 arranged in the transverse direction, and a first rotating blade 220 is provided in the first filter cartridge 210, and a second rotating blade 220 is provided in the second filter cartridge 210. On the one hand, the length of a single filter cartridge 210 and a rotating blade 220 is shortened, so that the molding, manufacturing and installation of the filter cartridge 210 and the rotating blade 220 are facilitated. The first filter cartridge 210 is connected to the first rotating blade 220, and under the impetus of the airflow, the first rotating blade 220 rotates to drive the first filter cartridge 210 to rotate. The second filter cartridge 210 is connected to the second rotating blade 220, and under the impetus of the airflow, the second rotating blade 220 rotates to drive the first filter cartridge 210 to rotate. Therefore, compared with only providing an entire filter cartridge 210, the weight of a single filter cartridge 210 can be reduced, so that the rotating blade 220 is easier to drive the filter cartridge 210 to rotate, and the rotation speed of the filter cartridge 210 is high, so that the collision filtering effect is good.

[0052] Furthermore, the width of the first rotating blade 220 is gradually increased from one end away from the second rotating blade 220 to one end close to the second rotating blade 220; the width of the second rotating blade 220 is gradually increased from one end away from the first rotating blade 220 to one end close to the first rotating blade 220, and the end at which the second rotating blade 220 and the first rotating blade 220 are close to each other corresponds to the fan 500 of the oil fume purification device.

[0053] In this embodiment, it can be understood that in order to ensure the air intake, the fan 500 is usually arranged in the middle of the smoking port 110. By making the width of the first rotating blade 220 gradually increase toward the side close to the second rotating blade 220, and making the width of the second rotating blade 220 gradually increase toward the side close to the first rotating blade 220, the widths of the first rotating blade 220 and the second rotating blade 220 gradually decrease from the end close to each other to the end away from each other. Since the wind speed in the middle of the housing 100 corresponding to the fan 500 is greater than the wind speed on both sides, the width of the first rotating blade 220 and the second rotating blade 220 corresponding to the fan 500 is large, which can effectively increase the effective action area of ​​the blades, and then the first rotating blade 220 and the second rotating blade 220 drive the first filter cartridge 210 and the second filter cartridge 210 to rotate better, increase the rotation speed of the filter cartridge 210, and make the overall effect of filtering oil smoke better.

[0054] Furthermore, on the rotation axis of the first filter cartridge 210, the outer diameter of the first filter cartridge 210 is gradually increased from one end away from the second filter cartridge 210 to one end close to the second filter cartridge 210, and on the rotation axis of the second filter cartridge 210, the outer diameter of the second filter cartridge 210 is gradually increased from one end away from the first filter cartridge 210 to one end close to the first filter cartridge 210.

[0055] In this embodiment, the first filter cartridge 210 and the first rotating blade 220 increase in the same direction, and the second filter cartridge 210 and the second rotating blade 220 increase in the same direction, so that the gap between the first filter cartridge 210 and the first rotating blade 220 on the rotating axis is more uniform, and the gap between the second filter cartridge 210 and the second rotating blade 220 on the rotating axis is more uniform. In this way, while satisfying the filtering effect and the installation space of the rotating blade 220, it is avoided that the first filter cartridge 210 and the second filter cartridge 210 are too large to occupy space, or cause the volume of the whole machine to increase, and the self-rotation effect is affected by the excessive volume of the filter cartridge 210. Of course, in other embodiments, the outer diameters of the first filter cartridge 210 and the second filter cartridge 210 can also be set to gradually increase from the end close to each other to the end away from each other.

[0056] In one embodiment, the filter assembly 200 further includes an adjustment assembly 230 , one end of which is connected to the end of the filter assembly 200 , and the other end of which abuts against the housing 100 , so that the gap between the end of the filter assembly 200 and the housing 100 is adjustable.

[0057] In this embodiment, the adjustment component 230 can be specifically a damper, a compression spring, a compressible structure or other devices that can adjust displacement and pressure. Preferably, a damper is used, which has the advantages of sensitive response and low friction resistance. The damper is installed at the end of the filter component 200, and one end abuts the housing 100. The length of the damper itself in the axial direction is adjustable, so that when the filter component 200 is installed, the damper is compressed and abutted on the housing 100, and the filter component 200 is connected to the housing 100 through the thrust. And when the filter component 200 rotates, the damper can compensate for the axial variable of the filter component 200, so that the rotation of the filter component 200 is more stable and smooth. At the same time, the damper can also play a role in shock absorption. By setting the adjustment component 230, a certain pre-compression amount can be set to provide pressure to the filter component 200, so that the end of the filter component 200 always remains in contact with the inner wall surface of the housing 100.

[0058] In one embodiment, the oil fume purification device further includes an oil cup 300, and the oil cup 300 is correspondingly arranged below the filter cartridge 210 to collect the oil stains flowing down from the filter cartridge 210. When the oil cup 300 is correspondingly arranged below the filter cartridge 210, the oil stains flowing down from the filter cartridge 210 can be collected. The length of the oil cup 300 can be adapted to the length of the filter cartridge 210 to better collect the oil stains flowing down. Of course, in order to reduce the length of the oil cup 300, an oil guide 400 can be arranged so that the oil guide 400 is correspondingly arranged below the filter cartridge 210, and the oil guide 400 guides the oil stains flowing down from the filter cartridge 210 into the oil cup 300.

[0059] Furthermore, the casing 100 includes a back plate 140 and a smoke shield panel 150 that are relatively arranged. The back plate 140 and the smoke shield panel 150 enclose an air inlet section of the air duct 130. The filter assembly 200 is arranged in the air inlet section. The inner wall surface of the back plate 140 and / or the inner wall surface of the smoke shield panel 150 is provided with an oil guide member 400. The oil guide member 400 is arranged between the oil cup 300 and the filter cartridge 210 to collect the oil stains flowing down from the filter cartridge 210 and guide the oil stains to drip into the oil cup 300.

[0060] It is understandable that when the filter cartridge 210 rotates, due to the effect of centrifugal force, the oil is thrown out of the filter cartridge 210 to the inner wall surface of the back plate 140 and the smoke barrier panel 150. An oil guide 400 is provided on the inner wall surface of the back plate 140 and the inner wall surface of the smoke barrier panel 150 to collect the oil stains flowing down from the back plate 140 and the smoke barrier panel 150, and then guide the oil stains to drip into the oil cup 300. The oil can be effectively collected to reduce the risk of oil leakage. The housing 100 also includes two side panels connected to the back plate 140 and the smoke barrier panel 150. In order to facilitate the cleaning of the back plate 140, the smoke barrier panel 150 and the oil cup 300, the smoke barrier panel 150 is detachably connected to the two side panels. It can be connected to the side panel by hanging, screw connection, clamping, etc. In this way, when cleaning is needed, the user only needs to disassemble the smoke shielding panel 150 to take out the oil cup 300 and clean the smoke shielding panel 150 and the back plate 140 , which is convenient for the user to operate.

[0061] Specifically, the oil guide member 400 includes a first oil guide strip 410 and a second oil guide strip 420. The first oil guide strip 410 is connected to the inner wall surface of the back plate 140, and the second oil guide strip 420 is connected to the inner wall surface of the smoke shielding panel 150. The first oil guide strip 410 and the second oil guide strip 420 are arranged at intervals from each other. The first oil guide strip 410 and the back plate 140 can be integrally formed or separately formed, and the second oil guide strip 420 and the smoke shielding panel 150 can be integrally formed or separately formed. The setting heights of the first oil guide strip 410 and the second oil guide strip 420 can be the same or different. When the first oil guide strip 410 and the second oil guide strip 420 are arranged at intervals from each other, the airflow after the oil smoke is filtered flows into the air duct 130 from the gap between the two, and then is discharged from the smoke exhaust port 120. The cross-sectional shapes of the first oil guide strip 410 and the second oil guide strip 420 are roughly hooked to form an oil collecting tank for collecting oil. It can be understood that the first oil guide strip 410 and the second oil guide strip 420 are arranged in an inclined or bent manner, and the lowest points of the first oil guide strip 410 and the second oil guide strip 420 are arranged corresponding to the oil cup 300 to guide the oil into the oil cup 300. Specifically, the ends of the first oil guide strip 410 and the second oil guide strip 420 can be arranged corresponding to the oil cup 300 to guide the oil into the oil cup 300, and oil leakage holes can also be provided to guide the oil into the oil cup 300. By arranging the oil guide strips on both the back plate 140 and the smoke baffle plate, the oil can be collected to the maximum extent, and oil leakage can be further prevented.

[0062] On the basis of the above embodiment in which the first filter cartridge 210 and the second filter cartridge 210 are provided, the first oil guide strip 410 includes a first section correspondingly provided below the first filter cartridge 210 and a second section correspondingly provided below the second filter cartridge 210, and the second oil guide strip 420 includes a third section correspondingly provided below the first filter cartridge 210 and a fourth section correspondingly provided below the second filter cartridge 210. The first section and the second section are arranged close to each other and tilted downward, and the third section and the fourth section are arranged close to each other and tilted downward. The oil cup 300 is correspondingly provided at the adjacent ends of the first section and the second section, and at the adjacent ends of the third section and the fourth section. This is to better collect the oil stains thrown off by the first filter cartridge 210 and the second filter cartridge 210.

[0063] In one embodiment, the filter assembly 200 further includes a protective cover 240 , which is disposed corresponding to the end of the filter cartridge 210 , so that a connector at the end of the filter cartridge 210 is located inside the protective cover 240 or below the protective cover 240 .

[0064] In this embodiment, when only one filter cartridge 210 is provided, and both ends are connected to the housing 100, the protective cover 240 is an end protective cover 240. It is understandable that a connector is provided at the end of the filter cartridge 210, so that the protective cover 240 can be connected to the housing 100 or the connector, so that the connector at the end of the filter cartridge 210 is located in the protective cover 240 or below the protective cover 240. In this way, it is possible to prevent oil from entering the connector at the end of the filter cartridge 210, affecting the use of the connector and making it inconvenient to clean. In order to make the protective cover 240 have a better protective function, the protective cover 240 is arranged to enclose the connector at the end of the filter cartridge 210, and the top plate of the protective cover 240 is arranged from top to bottom toward the filter cartridge 210 for cleaning. In this way, the oil on the protective cover 240 can flow into the filter cartridge 210 along the inclined top plate, and then flow into the oil cup 300 after being thrown out by the filter cartridge 210. When at least two filter cartridges 210 are provided. The protective cover 240 includes an end protective cover 240 and a middle protective cover 240. The end protective cover 240 is arranged corresponding to the end of the filter cartridge 210 connected to the housing 100, so that the connector at the end of the filter cartridge 210 is located in the end protective cover 240 or below the end protective cover 240. The middle protective cover 240 is arranged corresponding to the connection between two adjacent filter cartridges 210, so that the connector at the connection between two adjacent filter cartridges 210 is located in the middle protective cover 240 or below the middle protective cover 240. The end protective cover 240 and the middle protective cover 240 can be connected to the housing 100 or the filter assembly 200. The end protective cover 240 protects the connector at the end where the filter cartridge 210 is connected to the casing 100, and the middle protective cover 240 protects the connector between two adjacent filter cartridges 210, so that all parts of the filter assembly 200 except the filter cartridge 210 and the rotating blade 220 are located under the protection of the protective cover 240, thereby keeping other parts clean, preventing oil stains from affecting the use of the entire filter assembly, improving the overall service life, and reducing the parts that the user needs to clean.

[0065] In one embodiment, the oil fume purification device is an integrated stove, the housing 100 includes a head 160 and a body 170 connected to the lower end of the head 160, a smoke outlet 110 is provided on the head 160, the filter assembly 200 is rotatably mounted on the head 160 and is located below the smoke outlet 110, and the integrated stove also includes a fan 500, which is disposed in the air duct 130 of the body 170.

[0066] In this embodiment, the body 170 of the integrated stove is located below the head 160, and the body 170 is provided with a stove assembly and an additional assembly, such as a disinfection cabinet, a steam oven or a dishwasher. The head 160 and the body 170 can be provided as a whole, or can be detachably connected. When the head 160 and the body 170 are detachably connected, the head 160 and the body 170 can be replaced, which makes it easier to repair and replace the integrated stove. The stove is located at the front side of the head 160 assembly, so that the user can quickly and effectively inhale the oil smoke generated by the stove from the smoke outlet 110 when using it. It can be understood that the air duct 130 extends from the head 160 to the body 170. The fan 500 is arranged in the air duct 130 of the body 170, and the smoke outlet 120 is arranged on the body 170, and the oil smoke is inhaled and discharged from the bottom, so that the noise is placed downward, improving the user experience. By rotatably setting the filter assembly 200 on the head 160, the oil smoke entering the fuselage 170 is separated in advance in the head 160, and most of the oil smoke flows into the oil cup 300 of the head 160 after condensation and filtration through the rotating filter assembly 200 of the head 160. As a result, most of the condensed oil is filtered in advance in the head 160, and does not need to flow into the oil box at the bottom of the fuselage 170 after passing through the bellows and the fan 500 system. The oil cup 300 placed on the head 160 is convenient for users to clean, so that the amount of oil collected in the oil cup 300 at the bottom of the integrated stove is greatly reduced, so that users take it out less frequently. And the filtering capacity of the front end of the integrated stove is enhanced, so that a large amount of condensed oil is prevented from entering the bellows and the fan 500 system, and the accumulation of oil and dirt in the rear end fan 500 is reduced. At the same time, the decline in the performance of the fan 500 is delayed, and the life of the whole machine is improved.

[0067] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fume purification device, characterized in that: include: A housing, the housing having a smoke inlet, a smoke exhaust outlet, and an air duct connecting the smoke inlet and the smoke exhaust outlet; as well as A filter assembly is rotatably mounted in the air duct, the filter assembly comprises a filter cartridge, a plurality of filter holes are provided on the filter cartridge, a rotation axis of the filter cartridge extends along the length direction thereof, and an outer diameter of the filter cartridge is gradually increased from one end thereof to the other end thereof in the extending direction of the rotation axis of the filter cartridge; The filter assembly further comprises an adjusting assembly, one end of which is connected to the end of the filter assembly and the other end of which abuts against the housing, so that the gap between the end of the filter assembly and the housing is adjustable.

2. The oil fume purification device according to claim 1, characterized in that: The smoking port extends along the transverse direction of the housing, and the filter cartridge extends along the length direction of the smoking port.

3. The oil fume purification device according to claim 2, characterized in that: The filter assembly includes a plurality of filter cartridges, and the plurality of filter cartridges are arranged along the transverse direction of the housing and along the same axial direction.

4. The oil fume purification device according to claim 2, characterized in that: The filter assembly also includes a plurality of rotating blades, which are disposed in the filter cartridge and extend along the length direction of the filter cartridge. The plurality of rotating blades are arranged at intervals along the circumference of the filter cartridge so that the rotating blades can drive the filter cartridge to rotate around its rotation axis under the action of airflow.

5. The oil fume purification device according to claim 4, characterized in that: The rotating blades include a plurality of first rotating blades and a plurality of second rotating blades arranged along the transverse direction of the casing, and the filter cartridge includes a first filter cartridge and a second filter cartridge arranged along the transverse direction of the casing, a plurality of the first rotating blades are connected and installed in the first filter cartridge, and a plurality of the second rotating blades are connected and installed in the second filter cartridge.

6. The oil fume purification device according to claim 5, characterized in that: The width of the first rotating blade is gradually increased from one end away from the second rotating blade to one end close to the second rotating blade; the width of the second rotating blade is gradually increased from one end away from the first rotating blade to one end close to the first rotating blade, and the end of the second rotating blade close to the first rotating blade corresponds to the fan setting of the oil fume purification device.

7. The oil fume purification device according to claim 6, characterized in that: On the rotation axis of the first filter cartridge, the outer diameter of the first filter cartridge gradually increases from one end away from the second filter cartridge to one end close to the second filter cartridge. On the rotation axis of the second filter cartridge, the outer diameter of the second filter cartridge gradually increases from one end away from the first filter cartridge to one end close to the first filter cartridge.

8. The oil fume purification device according to claim 2, characterized in that: The oil fume purification device further comprises an oil cup, which is correspondingly arranged below the filter cartridge to collect the oil stains flowing down from the filter cartridge.

9. The oil fume purification device according to claim 8, characterized in that: The casing includes a back plate and a smoke shield panel that are relatively arranged, and the back plate and the smoke shield panel together form an air inlet section of the air duct. The filter assembly is arranged in the air inlet section, and the inner wall surface of the back plate and / or the inner wall surface of the smoke shield panel is provided with an oil guide member, and the oil guide member is arranged between the oil cup and the filter cartridge to collect the oil stains flowing down from the filter cartridge and guide the oil stains to drip into the oil cup.

10. The oil fume purification device according to claim 9, characterized in that: The oil guide member includes a first oil guide strip and a second oil guide strip, the first oil guide strip is connected to the inner wall surface of the back plate, the second oil guide strip is connected to the inner wall surface of the smoke shielding panel, and the first oil guide strip and the second oil guide strip are spaced apart from each other.

11. The oil fume purification device according to claim 1, characterized in that: The filter assembly further comprises a protective cover, which is arranged corresponding to the end of the filter cartridge so that a connector at the end of the filter cartridge is located inside the protective cover or below the protective cover.

12. The oil fume purification device according to any one of claims 1 to 11, characterized in that: The oil fume purification device is an integrated stove, the housing includes a head and a body connected to the lower end of the head, the head is provided with the smoke outlet, the filter assembly is rotatably mounted on the head and is located below the smoke outlet, the integrated stove also includes a fan, and the fan is arranged in the air duct of the body.

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