Lampblack filtering device, range hood and island platform all-in-one machine

Abstract

The utility model provides an oil smoke filtering device, a range hood and an island platform all-in-one machine. The oil smoke filtering device comprises a water spraying assembly and a photocatalyst filter screen. The water spraying assembly and the photocatalyst filter screen are both used for being installed in a smoke exhaust channel of the range hood. The photocatalyst filter screen and the water spraying assembly correspond to each other and are arranged at an interval, and a lampblack filtering channel is formed in the interval between the photocatalyst filter screen and the water spraying assembly. The water spraying assembly is configured to spray water columns to the oil fume filtering channel and the photocatalyst filter screen so as to filter oil fume passing through the oil fume filtering channel and clean the photocatalyst filter screen. Particulate matters in the oil smoke can be filtered through the water column, and meanwhile, the water column can also clean the photocatalyst filter screen.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, and more specifically, to an oil fume filtering device, an oil fume machine and an island counter integrated machine. Background Art

[0002] An island counter integrated machine is a modern kitchen appliance that combines multiple kitchen functions. It usually includes a gas stove, an oil fume machine, etc. It is designed to be compact, aiming to save kitchen space, improve kitchen efficiency, and provide a better cooking experience at the same time.

[0003] The photocatalyst material coated on the photocatalyst filter screen generates strongly oxidizing free radicals under the excitation of light (especially ultraviolet light). These free radicals can efficiently decompose organic pollutants in the oil fume, such as volatile organic compounds (VOCs), formaldehyde, benzene substances, etc., and convert them into harmless substances such as carbon dioxide and water.

[0004] In the prior art, in order to improve the oil fume purification efficiency, a photocatalyst filter screen is generally arranged in the smoke exhaust passage of the oil fume machine of the island counter integrated machine. However, after the photocatalyst filter screen is used for a long time, oil stains will accumulate on the surface of the photocatalyst filter screen, resulting in a decline in the purification effect and service life. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an oil fume filtering device, an oil fume machine and an island counter integrated machine, which can combine a water spraying component and a photocatalyst filter screen. Under the condition of better realizing oil fume separation, the water spraying component can spray water on the photocatalyst filter screen for cleaning, so as to improve the purification effect of the photocatalyst filter screen and extend its service life.

[0006] The embodiments of the utility model are implemented as follows:

[0007] In a first aspect, the utility model provides an oil fume filtering device, which includes a water spraying component and a photocatalyst filter screen;

[0008] Both the water spraying component and the photocatalyst filter screen are used for being installed in the smoke exhaust passage of the oil fume machine;

[0009] The photocatalyst filter screen is arranged corresponding to and at intervals with the water spraying component, and the interval between the photocatalyst filter screen and the water spraying component forms an oil fume filtering passage;

[0010] The water spraying component is configured to spray water columns into the oil fume filtering passage and on the photocatalyst filter screen, so as to filter the oil fume passing through the oil fume filtering passage and clean the photocatalyst filter screen.

[0011] In an optional embodiment, the oil fume filtering device further includes a light source module. The light source module is arranged on the water spraying component, and the light beam emitted by the light source module can be transmitted to the photocatalyst filter screen through the water spraying column of the water spraying component to activate the photocatalyst filter screen.

[0012] In an alternative embodiment, the water spraying assembly includes a light guide water tank;

[0013] The light guide water tank is provided with an opening, and a plurality of through holes are provided on the bottom wall of the light guide water tank;

[0014] The light source module is arranged at the opening;

[0015] The photocatalyst filter screen is arranged below the light guide water tank.

[0016] In an alternative embodiment, the light source module includes a bottom plate and a plurality of ultraviolet light sources arranged on the bottom plate;

[0017] The plurality of ultraviolet light sources are arranged on the bottom plate at intervals;

[0018] The bottom plate is arranged at the opening.

[0019] In an alternative embodiment, the opening is arranged at the top of the light guide water tank;

[0020] The bottom plate is arranged at the opening in an inclined manner with respect to the bottom wall of the light guide water tank and / or the ultraviolet light sources are arranged in an inclined manner with respect to the bottom plate, so that the ultraviolet light sources are arranged in an inclined manner with respect to the bottom wall of the light guide water tank.

[0021] In an alternative embodiment, a water inlet pipe is arranged on the side wall of the light guide water tank.

[0022] In an alternative embodiment, the water spraying assembly further includes a water pump;

[0023] The water pump is used to be installed in the machine case of the range hood, and the water pump is configured to pump the water flowing into the machine case through the photocatalyst filter screen into the light guide water tank;

[0024] The machine case is provided with an outward drainage pipe.

[0025] In a second aspect, the present utility model provides a range hood, which includes a smoke exhaust duct shell, a machine case, a fan and the oil fume filtering device according to any one of the foregoing embodiments;

[0026] The smoke exhaust duct shell has a smoke exhaust passage and a smoke inlet and a smoke outlet communicated with the smoke exhaust passage;

[0027] The photocatalyst filter screen is arranged corresponding to the smoke outlet, and the water spraying assembly is arranged on the smoke exhaust duct shell;

[0028] The machine case is installed on the smoke exhaust duct shell and is communicated with the smoke outlet, and the machine case is provided with a smoke exhaust port;

[0029] The fan is installed in the machine case, and the air outlet is communicated with the smoke exhaust port;

[0030] When the fan operates, the oil fume can flow into the smoke exhaust passage through the smoke inlet, and then pass through the oil fume filtering passage and then pass through the photocatalyst filter screen and enter, so as to be discharged from the smoke exhaust port under the action of the fan.

[0031] In an alternative embodiment, the fan includes a volute, and air inlets are provided on both sides of the volute.

[0032] Outside the volute and above the air inlet, a deflector is inclinedly arranged.

[0033] In a third aspect, the present utility model provides an island counter integrated machine, including an island counter body and the range hood of the above alternative embodiment;

[0034] The range hood is arranged inside the island counter body;

[0035] The island counter body is provided with a smoke suction port communicated with the smoke inlet.

[0036] The beneficial effects of the oil fume filtering device, the range hood provided by the embodiments of the present utility model are as follows:

[0037] In this application, the water spraying assembly and the photocatalyst filter screen are both installed in the smoke exhaust passage of the range hood, and the photocatalyst filter screen is arranged corresponding to and at intervals with the water spraying assembly, so that the two form an oil fume filtering passage. The water spraying assembly can spray water columns into the oil fume filtering passage and onto the photocatalyst filter screen. When the oil fume passes through the oil fume filtering passage, large particles and large oil droplets in the oil fume are absorbed and intercepted by contacting with the water columns and separated from the flue gas. Then the flue gas flows through the photocatalyst filter screen, and the photocatalyst filter screen can purify the flue gas. At the same time, the water columns sprayed by the water spraying assembly can also be sprayed onto the photocatalyst filter screen to clean the photocatalyst filter screen, which can improve the purification efficiency and service life of the photocatalyst filter screen. Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 It is a schematic structural diagram of the island counter integrated machine provided by the embodiment of the present utility model;

[0040] Figure 2 It is a schematic cross-sectional structural diagram of the island counter integrated machine provided by the embodiment of the present utility model;

[0041] Figure 3 It is a schematic cross-sectional structural diagram of the island counter integrated machine from another perspective provided by the embodiment of the present utility model;

[0042] Figure 4 It is an exploded structural diagram of the oil fume filtering device provided by the embodiment of the present utility model.

[0043] Icons: 100 - Oil fume filtering device; 110 - Water spraying assembly; 111 - Light - guiding water tank; 113 - Through - hole; 115 - Water inlet pipe; 117 - Water pump; 120 - Oil fume filtering channel; 130 - Photocatalyst filter screen; 150 - Light source module; 200 - Range hood; 210 - Smoke exhaust duct shell; 211 - Smoke exhaust channel; 213 - Smoke inlet; 215 - Smoke outlet; 230 - Chassis; 231 - Smoke outlet; 233 - Drain pipe; 250 - Fan; 251 - Volute; 252 - Air inlet; 253 - Deflector; 300 - Island - type integrated machine; 310 - Island - type body; 311 - Smoking port. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0046] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "install", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0048] Embodiment

[0049] Please refer to Figures 1 to 4, this embodiment provides an integrated island counter 300, which includes an island counter body 310 and a range hood 200 disposed within the island counter body 310. The island counter body 310 is provided with a smoke suction port 311 communicating with the range hood 200. The range hood 200 can suck the cooking fumes downward through the smoke suction port 311. The smoke suction port 311 can be laterally disposed for side suction or horizontally disposed for bottom suction.

[0050] It should be noted that the island counter body 310 can be understood as a cabinet body, the range hood 200 is disposed within the cabinet body, and the smoke suction port 311 can be disposed on the countertop of the cabinet body. Secondly, the island counter body 310 can also integrate other kitchen appliances such as a gas stove.

[0051] Please refer to Figures 1 to 4 , in this embodiment, the range hood 200 includes a smoke exhaust duct housing 210, a chassis 230, a fan 250, and an oil fume filtering device 100. The smoke exhaust duct housing 210 is fixedly connected to the island counter body 310. The smoke exhaust duct housing 210 has a smoke exhaust passage 211, a smoke inlet 213, and a smoke outlet 215 communicating with the smoke exhaust passage 211. The smoke inlet 213 communicates with the smoke suction port 311 provided on the island counter body 310. The oil fume filtering device 100 is disposed within the smoke exhaust passage 211. The chassis 230 is fixedly installed on the smoke exhaust duct housing 210 and communicates with the smoke outlet 215. The chassis 230 is provided with a smoke exhaust port 231. The fan 250 is installed within the chassis 230, and the air outlet of the fan 250 communicates with the smoke exhaust port 231. When the fan 250 operates, the cooking fumes inhaled through the smoke suction port 311 can flow into the smoke exhaust passage 211 through the smoke inlet 213, and after being filtered by the oil fume filtering device 100, can be discharged through the smoke exhaust port 231.

[0052] It should be noted that in this embodiment, the range hood 200 serves as the smoke suction module of the integrated island counter 300, while in some other embodiments of the present application, the range hood 200 can also exist and be used independently. It can be seen that this embodiment does not limit the range hood 200 to be only applicable to the integrated island counter 300.

[0053] Please refer to Figures 1 to 4 , in this embodiment, the smoke exhaust duct housing 210 is in a rectangular parallelepiped shape with an open top, and is installed under the countertop of the island counter body 310. The countertop closes the open top of the smoke exhaust duct housing 210. The smoke suction port 311 is disposed on the countertop and communicates with the open top of the smoke exhaust duct housing 210, thus saving materials and reducing costs. The smoke outlet 215 is disposed on the bottom plate of the smoke exhaust duct housing 210 and is disposed offset from the smoke suction port 311. The chassis 230 is connected to the bottom plate of the smoke exhaust duct housing 210, and the shape of the chassis 230 is also a rectangular parallelepiped box. The top of the chassis 230 is open and communicates with the smoke outlet 215, so that the cooking fumes inhaled into the smoke exhaust duct housing 210 through the smoke suction port 311 first flow horizontally towards the oil fume filtering device 100, then flow downward, flow into the chassis 230, and then flow out through the smoke exhaust port 231.

[0054] In this embodiment, the oil fume filtering device 100 includes a water spraying assembly 110 and a photocatalyst filter screen 130. The water spraying assembly 110 and the photocatalyst filter screen 130 are both installed in the smoke exhaust passage 211, and the photocatalyst filter screen 130 is installed at the smoke outlet 215. The photocatalyst filter screen 130 corresponds to the water spraying assembly 110 and is arranged at an interval, and the interval between the photocatalyst filter screen 130 and the water spraying assembly 110 forms an oil fume filtering passage 120. The water spraying assembly 110 can spray water columns into the oil fume filtering passage 120 and onto the photocatalyst filter screen 130 to filter the oil fume passing through the oil fume filtering passage 120 and clean the photocatalyst filter screen 130.

[0055] In this embodiment, by installing both the water spraying assembly 110 and the photocatalyst filter screen 130 in the smoke exhaust passage 211 of the range hood 200, and arranging the photocatalyst filter screen 130 to correspond to and be spaced apart from the water spraying assembly 110, the two form an oil fume filtering passage 120. The water spraying assembly 110 can spray water columns into the oil fume filtering passage 120 and onto the photocatalyst filter screen 130. When the oil fume passes through the oil fume filtering passage 120, large particles and large oil droplets in the oil fume are absorbed and intercepted after contacting the water columns and separated from the flue gas. The flue gas then flows through the photocatalyst filter screen 130, and the photocatalyst filter screen 130 can purify the flue gas. At the same time, the water columns sprayed by the water spraying assembly 110 can also be sprayed onto the photocatalyst filter screen 130 to clean the photocatalyst filter screen 130, which can improve the purification efficiency and service life of the photocatalyst filter screen 130.

[0056] Please refer to Figures 1 to 4 , in this embodiment, the oil fume filtering device 100 further includes a light source module 150. The light source module 150 is arranged on the water spraying assembly 110, and the light beam emitted by the light source module 150 can be transmitted to the photocatalyst filter screen 130 through the water spraying columns of the water spraying assembly 110 to activate the photocatalyst filter screen 130.

[0057] In this embodiment, the light source module 150 is arranged on the water spraying assembly 110. The light beam emitted by the light source module 150 can enter each water column. Due to the total reflection of light, the light irradiates onto the photocatalyst filter screen 130 along the water column. The places not contacted by the water column will also be activated due to the refraction, reflection, and diffuse reflection of light on the water column. After being activated by ultraviolet light, the photocatalyst filter screen 130 starts to work and decomposes the organic substances in the oil fume, such as acids, aldehydes, saturated and unsaturated hydrocarbons, alkanes, alkenes, etc. Through oxidation-reduction reactions, the organic substances are degraded into carbon dioxide and water, thereby achieving the purpose of removing odor VOCs. Secondly, the light source module 150 can also be isolated from water, making the use safer.

[0058] Further, the water spraying assembly 110 includes a light guide water tank 111. The light guide water tank 111 is provided with an opening, and a plurality of through holes 113 are provided in the bottom wall of the light guide water tank 111. The light source module 150 is disposed at the opening. The photocatalyst filter screen 130 is disposed below the light guide water tank 111.

[0059] Please refer to Figures 1 to 3 , in this embodiment, the light guide water tank 111 is disposed above the photocatalyst filter screen 130, and a plurality of through holes 113 are provided in the light guide water tank 111, so that the water in the light guide water tank 111 can flow downward through the through holes 113 under the action of gravity, and a water curtain effect is formed in the oil fume filtering channel 120 to filter the particulate matter in the oil fume. Then, the water column drops on the photocatalyst filter screen 130 to clean the photocatalyst filter screen 130.

[0060] Further, a plurality of through holes 113 are arranged in a rectangular array on the bottom wall of the light guide water tank 111. When the oil fume flows along the oil fume filter, each row of through holes 113 can achieve one-time filtration of the dropped water column, so that multiple filtrations can be achieved. The light beam emitted by the light source module 150 will irradiate on the light guide water tank 111, and the bottom wall of the light guide water tank 111 is similar to a light guide plate, which can reflect and diffuse the light along the water column and irradiate on the photocatalyst filter screen 130.

[0061] Further, in order to make the water column more continuous, a nozzle can be installed for each through hole 113, so that filtration and light guiding can be better achieved.

[0062] In other embodiments of the present application, water can also be sprayed onto the photocatalyst filter screen 130 and the oil fume filtering channel 120 by means of pumping water.

[0063] Please refer to Figures 1 to 4 , in this embodiment, the light source module 150 includes a bottom plate and a plurality of ultraviolet light sources (not shown in the figure) disposed on the bottom plate. The plurality of ultraviolet light sources are spaced apart on the bottom plate. The opening is disposed at the top of the light guide water tank 111. The ultraviolet light sources are inclined relative to the bottom plate so that the ultraviolet light sources are inclined relative to the bottom wall of the light guide water tank 111. Of course, the bottom plate can also be inclined relative to the bottom wall of the light guide water tank 111 and disposed at the opening.

[0064] Installing the ultraviolet light sources obliquely or the whole light source module 150 obliquely can better achieve total reflection and diffuse reflection of light.

[0065] Further, the value range of the inclination angle of the ultraviolet light source or the bottom plate is greater than 45° and less than 90°. For example, the light source is inclined at 60° relative to the bottom plate and installed on the bottom plate.

[0066] In this embodiment, the wavelength of the ultraviolet light source ranges from 185 nm to 380 nm. Ultraviolet light sources with wavelengths such as 185 nm, 254 nm, 300 nm, and 380 nm can be selected.

[0067] It can be understood that the light source module 150 is installed on the light guide water tank 111 like a lid, so that the generated light can irradiate the water surface in the light guide water tank 111 and then conduct downward.

[0068] In this embodiment, a water inlet pipe 115 is provided on the side wall of the light guide water tank 111. The water inlet pipe 115 can be connected to tap water to supply water to the light guide water tank 111.

[0069] In one implementation, a float valve can be provided at the water inlet of the water inlet pipe 115 to open the water inlet pipe 115 when the liquid level in the light guide water tank 111 is lower than the preset liquid level, and close the float valve when the water level is higher than the preset water level.

[0070] Please refer to Figures 1 to 4 , in this embodiment, the water spraying assembly 110 further includes a water pump 117. The water pump 117 is installed in the chassis 230. The water pump 117 can pump the water that flows into the chassis 230 through the photocatalyst filter screen 130 into the light guide water tank 111. For example, the water pump 117 is arranged in the chassis 230 and is connected to the light guide water tank 111 through a pipeline, so that the water circulation can be realized, thereby saving energy.

[0071] In this embodiment, the chassis 230 is provided with a drain pipe 233, and a solenoid valve is also provided on the drain pipe 233. The drain pipe 233 can be connected to the sewage pipe. The water flowing into the chassis 230 can be discharged into the sewage pipe through the drain pipe 233. For example, after using for a period of time, the solenoid valve is opened to drain the sewage, and then the water can be replaced.

[0072] Please refer to Figures 1 to 4 , in this embodiment, the fan 250 includes a volute 251. Air inlets 252 are provided on both sides of the volute. A deflector 253 is inclinedly arranged outside the volute 251 and above the air inlet 252. In this embodiment, by arranging the deflector 253 above the air inlet 252, the water dropping from the photocatalyst filter screen can be guided away from both sides away from the air inlet 252, avoiding the water being sucked into the volute 251 by the fan 250 during operation and affecting the internal electronic components.

[0073] It should be noted that the length of the deflector 253 extending outwards and the inclination angle can be set according to the negative pressure generated by the fan 250 at the air inlet 252 to ensure that the negative pressure generated during the operation of the fan 250 is not sufficient to suck in the water. It is also worth noting that a gap needs to be reserved between the end of the deflector 253 and the side plate of the chassis 230 to facilitate the smoke flow to pass through and be sucked into the air inlet 252.

[0074] In summary, in this embodiment, the water spraying component 110 and the photocatalyst filter screen 130 are both installed in the smoke exhaust passage 211 of the range hood 200, and the photocatalyst filter screen 130 is arranged corresponding to and spaced apart from the water spraying component 110, so that the two form an oil fume filtering passage 120. The water spraying component 110 can spray water columns into the oil fume filtering passage 120 and the photocatalyst filter screen 130. When the oil fume passes through the oil fume filtering passage 120, large particles and large oil droplets in the oil fume are absorbed, intercepted and separated from the flue gas after contacting the water columns, and then the flue gas flows through the photocatalyst filter screen 130, and the photocatalyst filter screen 130 can purify the flue gas. At the same time, the water columns sprayed by the water spraying component 110 can also be sprayed onto the photocatalyst filter screen 130 to clean the photocatalyst filter screen 130, which can improve the purification efficiency and service life of the photocatalyst filter screen 130.

[0075] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fume filtering device, characterized in that: It comprises a water spraying component (110) and a photocatalyst filter (130); The water spray assembly (110) and the photocatalyst filter (130) are both used to be installed in a smoke exhaust passage (211) of a range hood; The photocatalyst filter (130) corresponds to the water sprinkling assembly (110) and is arranged at a distance, and the distance between the photocatalyst filter (130) and the water sprinkling assembly (110) forms an oil fume filtering channel (120); The water spraying component (110) is configured to spray a water column toward the oil fume filtering channel (120) and the photocatalyst filter (130) to filter the oil fume passing through the oil fume filtering channel (120) and clean the photocatalyst filter (130).

2. The oil fume filtering device according to claim 1, characterized in that: The oil fume filtering device further comprises a light source module (150), wherein the light source module (150) is arranged on the water spraying assembly (110), and the light beam emitted by the light source module (150) can be transmitted to the photocatalyst filter (130) via a spraying water column of the water spraying assembly (110) to activate the photocatalyst filter (130).

3. The oil fume filtering device according to claim 2, characterized in that: The water spraying assembly (110) comprises a light-guiding water tank (111); The light-guiding water tank (111) is provided with an opening, and the bottom wall of the light-guiding water tank (111) is provided with a plurality of through holes (113); The light source module (150) is arranged at the opening; The photocatalyst filter (130) is arranged below the light-guiding water tank (111).

4. The oil fume filtering device according to claim 3, characterized in that: The light source module (150) comprises a base plate and a plurality of ultraviolet light sources arranged on the base plate; A plurality of ultraviolet light sources are arranged at intervals on the bottom plate; The bottom plate is arranged at the opening.

5. The oil fume filtering device according to claim 4, characterized in that: The opening is arranged at the top of the light-guiding water tank (111); The bottom plate is arranged obliquely at the opening relative to the bottom wall of the light-guiding water tank (111) and / or the ultraviolet light source is arranged obliquely relative to the bottom plate, so that the ultraviolet light source is arranged obliquely relative to the bottom wall of the light-guiding water tank (111).

6. The oil fume filtering device according to any one of claims 3 to 5, characterized in that: A water inlet pipe (115) is provided on the side wall of the light-guiding water tank (111).

7. The oil fume filtering device according to claim 6, characterized in that: The water spraying assembly (110) further includes a water pump (117); The water pump (117) is used to be installed in the cabinet (230) of the range hood, and the water pump (117) is configured to pump water that flows into the cabinet (230) through the photocatalyst filter (130) into the light guide water tank (111); The chassis (230) is provided with an outward drainage pipe (233).

8. A range hood, characterized in that: The range hood comprises a smoke exhaust duct housing (210), a chassis (230), a fan (250) and the smoke filtering device according to any one of claims 1 to 7; The smoke exhaust air duct housing (210) comprises a smoke exhaust passage (211) and a smoke inlet (213) and a smoke outlet (215) which are in communication with the smoke exhaust passage (211); The photocatalyst filter (130) is arranged corresponding to the smoke outlet (215), and the water spraying component (110) is arranged on the smoke exhaust air duct shell (210); The chassis (230) is installed on the smoke exhaust air duct shell (210) and is in communication with the smoke outlet (215); the chassis (230) is provided with a smoke exhaust outlet (231); The fan (250) is installed in the chassis (230), and the air outlet is connected to the smoke exhaust port (231); The operation of the fan (250) can cause the oil smoke to flow into the smoke exhaust channel (211) through the smoke inlet (213), and then pass through the oil smoke filter channel (120) and the photocatalyst filter (130) to enter the smoke exhaust channel, so as to be discharged from the smoke exhaust port (231) under the action of the fan (250).

9. The range hood according to claim 8, characterized in that: The fan (250) comprises a volute (251), and air inlets (252) are arranged on both sides of the volute (251); A guide plate (253) is obliquely arranged on the outside of the volute (251) and above the air inlet (252).

10. An island integrated machine, characterized in that: It comprises an island body (310) and the range hood according to claim 8 or 9; The range hood is arranged in the island body (310); The island body (310) is provided with a smoking port (311) which is in communication with the smoke inlet (213).

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