Range hood

By adopting a double-layer smoke inlet structure and a flip cover design in the range hood, the problems of poor smoking effect and blocked vision from a single smoke inlet are solved, achieving more efficient oil fume purification and a user-friendly experience.

CN223258251UActive Publication Date: 2025-08-22GUANGDONG MACRO GAS APPLIANCE +1
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Patent Information

Application Number
CN202422532854.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-08-22
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

The single smoke inlet of the existing range hood has a poor smoke extraction effect when multiple burners are used at the same time, and the smoke collecting plate will block the user's cooking vision.

Method used

A range hood is designed with a double-layer smoke inlet structure, in which the main smoke inlet is located at the bottom near the stove, and the auxiliary smoke inlet is located at the top. The flap can be flipped and stopped at any angle. Oil fume separation is achieved through the oil mesh panel, and a nano-coating and filter component are set on the oil mesh panel for further purification.

Benefits of technology

It improves the oil fume purification effect, avoids the smoke collecting plate blocking the view, enhances the user experience, and can adjust the smoke collecting area when the flue resistance is large, making it easier to clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil fume purification, and particularly discloses a range hood which is provided with an oil screen panel and a turning cover plate, a plurality of first meshes are formed in the oil screen panel and are arranged at intervals in the length direction of the oil screen panel; the turning cover plate is hinged to the mounting shell of the smoke collecting assembly, and can turn over relative to the mounting shell and stay at any opening angle; when the turning cover plate is not opened, the turning cover plate and the oil screen panel are arranged in a spaced mode, an oil fume passage communicated with the first mesh holes is formed between the turning cover plate and the installation shell, a gap between the top edge of the turning cover plate and a top plate of the installation shell forms an auxiliary fume inlet, a main fume inlet is formed in the turning cover plate and communicated with the oil fume passage, and the main fume inlet is communicated with the oil fume passage. By means of the structure, oil fume can be effectively purified, and the cooking sight of a user cannot be blocked.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil fume purification, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance installed above a stove, primarily used to purify the kitchen environment. Most existing range hoods are side-suction, with only a single smoke inlet located to the side of the smoke-generating area. To effectively purify the smoke with the smoke inlet, side-suction range hoods also incorporate a smoke trap on their panel assembly to increase the smoke trapping area. However, when multiple burners are used simultaneously on a stove, the resulting smoke concentration is high, and the extraction efficiency of a single smoke inlet is poor, resulting in a high level of residual smoke in the air, significantly reducing the user experience. Furthermore, when the smoke trap is open, it is located within the user's cooking range, easily blocking the user's view and affecting their cooking. Utility Model Content

[0003] The utility model aims to solve the technical problems existing in the above-mentioned prior art and provide a range hood that can effectively purify oil smoke and does not block the user's cooking vision.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The smoke collecting box of claim 1, wherein the smoke collecting box has a top end and a bottom end, the smoke collecting box having a top end and a bottom end. The smoke collecting box has a top end and a bottom end, and a smoke collecting box has a bottom end. The smoke collecting box has a top end and a bottom end.

[0006] The range hood described in the utility model is in a normal working state, the flip cover is not opened, that is, it is in a closed state, oil smoke enters from the main smoke inlet and enters the first mesh hole on the oil screen panel along the oil smoke passage, and the oil smoke is separated by the oil screen panel, and some of the escaped oil smoke is sucked into the auxiliary smoke inlet and also enters the first mesh hole on the oil screen panel, and the oil smoke is separated by the oil screen panel; by arranging the main smoke inlet and the auxiliary smoke inlet up and down, the main smoke inlet located at the bottom is close to the stove (that is, close to the oil smoke generating area), so that most of the oil smoke can be sucked away, and the small part of the oil smoke escaping upwards is further absorbed by the auxiliary smoke inlet located at the top, thereby achieving a better smoking effect; in addition, since a better oil fume purification effect can be achieved through the double-layer smoke inlet structure, there is no need for a smoke collecting plate, and the user's cooking vision will not be blocked when the user is cooking, thereby improving the user experience. However, when the resistance of the flue in the user's home is too large, the user can actively open the flip plate and adjust the angle of the flip plate to adjust the smoke collection area to further improve the smoking effect. At the same time, it is also convenient for the user to clean the inside of the smoke collection component after opening the flip plate.

[0007] Furthermore, the oil screen panel is located between the top plate of the mounting shell and the back plate of the smoke collecting chamber.

[0008] Furthermore, a plurality of second mesh holes are provided on the oil mesh panel. The plurality of second mesh holes are spaced apart along the length direction of the oil mesh panel, and the size of the first mesh hole is larger than the size of the second mesh hole.

[0009] Furthermore, when the flip cover is not opened, the flip cover covers all the first mesh holes and covers a portion of the second mesh holes.

[0010] Furthermore, a hinge assembly is provided between the flip cover plate and the mounting shell, and the hinge assembly includes a mounting seat connected to the mounting shell, a connecting rod is provided on the mounting seat, and a rotatable connecting member is sleeved on the connecting rod. One end of the connecting member passes through the oil mesh panel and is connected to the flip cover plate. First friction members are provided on both side surfaces of one end of the connecting member sleeved on the connecting rod, and two second friction members are also sleeved on the connecting rod. Each second friction member abuts against the first friction member on the corresponding side. When the connecting member is subjected to force, it overcomes the friction between the first friction member and the second friction member and drives the first friction member to rotate, so that the flip cover plate can stay at any opening angle.

[0011] Furthermore, the second friction member is annular and has an undulating shape along its axial direction. The raised portion of the second friction member facing the corresponding first friction member abuts against the first friction member. A clamping member is provided on the side of the second friction member facing away from the first friction member, so that the second friction member abuts against the corresponding first friction member.

[0012] Furthermore, a bent folding plate is provided on the free end of the flip plate, and the main smoke inlet is provided on the folding plate. When the flip plate is not opened, the free end of the folding plate is in contact with the mounting shell, and when the flip plate is opened, the free end of the folding plate is separated from the mounting shell.

[0013] Furthermore, the panel assembly also includes a lighting panel, which is arranged on the top of the mounting shell and is docked with the oil screen panel. A light-transmitting window is provided on the lighting panel, and an LED lamp is provided between the lighting panel and the mounting shell, and the LED lamp is opposite to the light-transmitting window.

[0014] Furthermore, a nano coating is coated on the outer surface of the oil mesh panel.

[0015] Furthermore, a filter assembly is provided in the installation shell. The filter assembly is located outside the oil mesh panel and blocks a portion of the first mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size. The emphasis is on illustrating the subject matter of the present invention.

[0017] Figure 1 and Figure 2 It is a three-dimensional diagram of the present utility model.

[0018] Figure 3 This is a three-dimensional image of the range hood with the flap removed.

[0019] Figure 4 A partial schematic diagram of the hinge assembly.

[0020] Figure 5 Schematic diagram of the structure of the second friction member.

[0021] Among them, the top plate 1; the smoke chamber back plate 2; the side plate 3; the bottom plate 4; the box body 5; the oil mesh panel 6; the first mesh 7; the second mesh 8; the flip cover plate 9; the mounting seat 10; the connecting rod 11; the connecting part 12; the first friction part 13; the second friction part 14; the baffle 15; the clamping part 16; the folding plate 17; the main smoke inlet 18; the lighting panel 19; the light-transmitting window 20; and the filter assembly 21. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] 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. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0025] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0027] The utility model provides an embodiment of a range hood, see Figure 1 and Figure 2, including a box assembly and a smoke collection assembly connected to the box assembly, wherein the internal structure of the box assembly is the existing technology, and a fan and other mechanisms are usually installed inside it; the smoke collection assembly includes a mounting shell, the mounting shell has a top plate 1, a smoke collection chamber back plate 2, a side plate 3 and a bottom plate 4, the top plate 1 is arranged on the top of the smoke collection chamber back plate 2, side plates 3 are respectively arranged on both sides of the smoke collection chamber back plate 2, the bottom of the smoke collection chamber back plate 2 is connected to the bottom plate 4, and the top end of the side plate 3 is connected to the top plate 1, and the bottom end of the side plate 3 is connected to the bottom plate 4, and a through hole is opened on the top plate 1 to communicate with the internal installation space of the box body of the box assembly, the box assembly The whole is connected to the top plate 1, and the opening of the box body 5 in the box assembly is docked with the through-hole on the top plate 1; the mounting shell is connected to the internal mounting space of the box assembly, and a panel assembly for isolating the internal mounting space of the box assembly from the outside is provided in the mounting shell, and the panel assembly includes an oil mesh panel 6, and a plurality of first mesh holes 7 are provided on the oil mesh panel 6. The plurality of first mesh holes 7 are spaced apart along the length direction of the oil mesh panel 6. The flip plate 9 is hinged to the mounting shell, specifically hinged to the inner surface of the top plate 1 of the mounting shell, and the flip plate 9 can be flipped relative to the mounting shell and stay at any opening angle; when the flip plate 9 is not opened When the oil filter is turned on, the flap plate 9 and the oil mesh panel 6 are spaced apart, and an oil smoke passage connected to the first mesh is formed between the flap plate 9 and the mounting shell, specifically, the flap plate 9 and the smoke collecting chamber back plate 2 of the mounting shell are spaced apart, so that an oil smoke passage is formed at the gap between the two, and a secondary smoke inlet is formed in the gap between the top edge of the flap plate 9 and the top plate 1 of the mounting shell, specifically, the top edge of the flap plate 9 and the top plate 1 of the mounting shell are also spaced apart, so that a gap can be formed between the top edge of the flap plate 9 and the top plate 1 of the mounting shell, and the gap is the secondary smoke inlet. A main smoke inlet 18 is provided on the flap plate 9. The main smoke inlet 18 is connected to the oil fume passage, and the main smoke inlet 18 is arranged below the auxiliary smoke inlet. It can be understood that when the flip cover 9 is not opened, the main smoke inlet 18 is located below the auxiliary smoke inlet, wherein a plurality of second mesh holes 8 are also provided on the oil mesh panel 6, and the plurality of second mesh holes 8 are spaced apart along the length direction of the oil mesh panel 6. There are two groups of first mesh holes 7, and the two groups of first mesh holes 7 are symmetrically arranged about the center line of the width direction of the oil mesh panel 6. There are also two groups of second mesh holes 8, and the two groups of second mesh holes 8 are also symmetrically arranged about the center line of the width direction of the oil mesh panel 6, so that the oil mesh panel 6 can effectively separate the oil fume of the double-burner stove.

[0028] When the range hood is operating normally, the flip cover is not opened, that is, it is in a closed state, and the oil smoke enters from the main smoke inlet and enters the first mesh hole on the oil screen panel along the oil smoke passage, and the oil smoke is separated by the oil screen panel. Some of the escaped oil smoke is sucked into the auxiliary smoke inlet and also enters the first mesh hole on the oil screen panel, and the oil smoke is separated by the oil screen panel; by arranging the main smoke inlet and the auxiliary smoke inlet up and down, the main smoke inlet located at the bottom is close to the stove (that is, close to the oil smoke generating area), so that most of the oil smoke can be sucked away, and the small part of the oil smoke escaping upward is further absorbed by the auxiliary smoke inlet located above, thereby achieving a better smoking effect; in addition, since a better oil fume purification effect can be achieved through the double-layer smoke inlet structure, there is no need for a smoke collecting plate, and it will not block the user's cooking vision when the user is cooking, thereby improving the user experience. However, when the resistance of the flue in the user's home is too large, the user can actively open the flip plate and adjust the angle of the flip plate to adjust the smoke collection area to further improve the smoking effect. At the same time, it is also convenient for the user to clean the inside of the smoke collection component after opening the flip plate.

[0029] In the preferred embodiment, see Figure 3 The oil screen panel 6 is located between the housing's top plate 1 and the smoke collection chamber's back plate 2. This allows the first mesh holes 7 to be positioned above and to the sides of the stove below, further enhancing oil fume separation and ensuring that fumes are quickly drawn into and exhausted from the range hood. The first mesh holes 7 are larger than the second mesh holes 8, enhancing the range hood's aesthetics.

[0030] In the preferred embodiment, see Figure 2 When the flip cover 9 is not opened, the flip cover 9 blocks all the first mesh holes 7 and a part of the second mesh holes 8, so that the oil smoke enters from the main smoke inlet 18 and quickly passes through the first mesh holes 7 for oil smoke separation before entering the interior of the range hood and being discharged. At the same time, through the function of the main smoke inlet, the oil smoke can be separated from the grease first before entering the first mesh holes 7, which can extend the cleaning cycle of the oil net panel 6 and the inside of the smoke collection component; and the escaping oil smoke will be sucked in from the secondary smoke inlet when it rises to the secondary smoke inlet and enter the first mesh holes 6. Even if some of the oil smoke does not enter from the secondary smoke inlet, it will be sucked into the interior of the range hood from the second mesh holes 8.

[0031] In the preferred embodiment, see Figure 1 and 2The panel assembly includes a flip plate 9, which is hinged on the mounting shell, specifically, on the inner surface of the top plate 1 of the mounting shell. The flip plate 9 can be flipped relative to the mounting shell and remain at any opening angle. When the range hood is working, the flip plate 9 is in a closed state to avoid affecting the user's cooking. However, when the resistance of the flue in the user's home is too large, the user can actively open the flip plate 9 and adjust the angle of the flip plate 9 to adjust the smoke collection area, further improving the smoking effect. At the same time, it is also convenient for the user to clean the inside of the smoke collection assembly after opening the flip plate 9. In addition, since the flip plate 9 is hinged on the top plate 1 of the mounting shell, the installation position of the flip plate 9 is raised. When the flip plate 9 is flipped open, the flip plate 9 can be located above the user's line of sight to avoid affecting the user's cooking.

[0032] In the preferred embodiment, see Figure 4 , a hinge assembly is provided between the flip plate 9 and the mounting shell. In this embodiment, there are two groups of hinge assemblies, which are symmetrically arranged on both sides of the flip plate 9. The hinge assembly includes a mounting seat 10 connected to the mounting shell, and the mounting seat 10 is mounted on the top plate 1 of the mounting shell. A connecting rod 11 is provided on the mounting seat 10, and a rotatable connecting member 12 is sleeved on the connecting rod 11. One end of the connecting member 12 passes through the oil mesh panel 6 and is connected to the flip plate 9. A first friction member 13 is provided on both side surfaces of one end of the connecting member 12 sleeved on the connecting rod 11. Two second friction members 14 are also sleeved on the connecting rod 11. Each second friction member 14 abuts against the first friction member 13 on the corresponding side. When the connecting member 12 is subjected to force, it overcomes the friction between the first friction member 13 and the second friction member 14 and drives the first friction member 13 to rotate, so that the flip plate 9 stays at any opening angle. When the flip cover 9 needs to be opened, the user manually flips the flip cover 9 upward, thereby applying force to the flip cover 9. The force exerted by the user's hand overcomes the friction between the first friction member 13 and the second friction member 14, prompting the flip cover 9 to flip upward. Similarly, when the opening angle of the flip cover 9 needs to be adjusted, the opening angle of the flip cover 9 can be adjusted by rotating the flip cover 9 up and down. After the user releases his hand, the flip cover 9 is in a stationary state due to the friction between the first friction member 13 and the second friction member 14, so as to maintain the current opening angle. A stop rod 15 is also provided on the mounting base 10. When the flip cover 9 is flipped up to the maximum angle, the side of the connecting member 12 will abut against the stop rod 15, preventing the flip cover 9 from flipping up without limit.

[0033] In the preferred embodiment, see Figure 5The second friction member 14 is annular and has an undulating shape along its axis. The raised portion of the second friction member 14 facing the corresponding first friction member 13 abuts against the first friction member 13. A clamping member 16 is provided on the side of the second friction member 14 facing away from the first friction member 13, which abuts the second friction member 14 against the corresponding first friction member 13. The raised portion of the second friction member 14 contacts the first friction member 13, reducing the contact surface between the two and thus the frictional force between the two. This ensures that the user can manually flip the flip cover 9 while preventing severe wear between the two.

[0034] In the preferred embodiment, see Figure 1 and 2 A bent flap 17 is provided on the free end of the flip cover 9, and a main smoke inlet 18 is provided on the flap 17. When the flip cover 9 is not opened, the free end of the flap 17 contacts the mounting housing. When the flip cover 9 is opened, the free end of the flap 17 is separated from the mounting housing. When the flip cover 9 is in the unopened state (i.e., closed state), the free end of the flap 17 contacts the mounting housing, preventing the flip cover 9 from being completely closed and contacting the mounting housing, thereby forming an oil smoke passage between the mounting housing and the flip cover 9. After the flip cover 9 is opened, the oil smoke can enter the first mesh 7 from between the flip cover 9 and the smoke collecting chamber back plate of the mounting housing, enter the second mesh 8 from between the flip cover 9 and the top plate 1, or enter from the auxiliary smoke inlet and then pass through the first mesh 7 into the interior of the range hood.

[0035] In a preferred embodiment, the panel assembly further includes a lighting panel 19, which is disposed on the top of the mounting housing. The lighting panel 19 is docked with the oil screen panel 6. The two can be formed separately and then connected by a connector, or they can be formed integrally. A light-transmitting window 20 is provided on the lighting panel 19. Two light-transmitting windows 20 can be provided, and the two are symmetrically arranged on the lighting panel 19. An LED lamp is provided between the lighting panel 19 and the mounting housing. The LED lamp is opposite to the light-transmitting window 20. There can be two LED lamps, each corresponding to a light-transmitting window 20, or a long strip of LED lamp, a portion of which is opposite to one of the light-transmitting windows 20, and another portion is opposite to the other light-transmitting window 20. By disposing the lighting panel 19 on the top of the mounting housing, the LED lamp can be directed toward the stove below, ensuring effective lighting while avoiding direct light into the user's eyes and causing a poor user experience.

[0036] In a preferred embodiment, a nano coating is applied to the outer surface of the oil screen panel 6. The nano coating can absorb impurities such as grease particles and dust, preventing them from entering the range hood and damaging it, and also preventing them from being discharged to the outside and polluting the environment.

[0037] In the preferred embodiment, see Figure 3 A filter assembly 21 is also installed in the mounting housing. This assembly is located outside the oil screen panel 6 and partially blocks the first mesh openings 7. Specifically, the filter assembly 21 includes a mounting frame and a filter screen mounted on the mounting frame. Because the filter assembly 21 is located outside the oil screen panel 6 and partially blocks the first mesh openings 7, it can initially filter out some harmful substances, dust, and other impurities in the oil smoke. This prevents oil smoke entering the main smoke inlet from damaging the range hood and prevents discharged oil smoke from polluting the environment. The dual purification effects of the nanocoating and the filter assembly enable more effective oil smoke purification and grease separation.

[0038] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A range hood comprising a housing assembly and a smoke collection assembly connected to the housing assembly, the smoke collection assembly comprising a mounting housing communicating with an internal mounting space of the housing assembly, a panel assembly disposed within the mounting housing for isolating the internal mounting space of the housing assembly from the outside, characterized in that: The panel assembly includes an oil mesh panel and a flip plate; a plurality of first mesh holes are provided on the oil mesh panel, and the plurality of first mesh holes are spaced apart along the length direction of the oil mesh panel; the flip plate is hinged on the mounting shell, and can be flipped relative to the mounting shell and stay at any opening angle; when the flip plate is not opened, the flip plate and the oil mesh panel are spaced apart, and an oil fume passage connected to the first mesh holes is formed between the flip plate and the mounting shell, and a secondary smoke inlet is formed in the gap between the top edge of the flip plate and the top plate of the mounting shell, and a main smoke inlet is provided on the flip plate, the main smoke inlet is connected to the oil fume passage, and the main smoke inlet is arranged below the secondary smoke inlet.

2. The range hood according to claim 1, characterized in that: The oil screen panel is located between the top plate of the mounting shell and the back plate of the smoke collecting chamber.

3. The range hood according to claim 1, characterized in that: A plurality of second mesh holes are further provided on the oil mesh panel. The plurality of second mesh holes are spaced apart along the length direction of the oil mesh panel, and the size of the first mesh hole is larger than that of the second mesh hole.

4. The range hood according to claim 3, characterized in that: When the flip cover is not opened, the flip cover covers all the first mesh holes and covers a portion of the second mesh holes.

5. The range hood according to claim 1, characterized in that: A hinge assembly is provided between the flip cover plate and the mounting shell, and the hinge assembly includes a mounting seat connected to the mounting shell, a connecting rod is provided on the mounting seat, and a rotatable connecting member is sleeved on the connecting rod. One end of the connecting member passes through the oil mesh panel and is connected to the flip cover plate. First friction members are provided on both side surfaces of one end of the connecting member sleeved on the connecting rod, and two second friction members are also sleeved on the connecting rod. Each second friction member abuts against the first friction member on the corresponding side. When the connecting member is subjected to force, it overcomes the friction between the first friction member and the second friction member and drives the first friction member to rotate, so that the flip cover plate stays at any opening angle.

6. The range hood according to claim 5, characterized in that: The second friction member is annular and has an undulating shape along its axial direction. The raised portion of the second friction member facing the corresponding first friction member abuts against the first friction member. A clamping member is provided on the side of the second friction member facing away from the first friction member, so that the second friction member abuts against the corresponding first friction member.

7. The range hood according to claim 1, characterized in that: A bent folding plate is provided on the free end of the flip cover plate, and the main smoke inlet is provided on the folding plate. When the flip cover plate is not opened, the free end of the folding plate contacts the mounting shell, and when the flip cover plate is opened, the free end of the folding plate is separated from the mounting shell.

8. The range hood according to claim 1, wherein: The panel assembly also includes a lighting panel, which is arranged on the top of the mounting shell and is docked with the oil screen panel. A light-transmitting window is provided on the lighting panel, and an LED lamp is provided between the lighting panel and the mounting shell, and the LED lamp is opposite to the light-transmitting window.

9. The range hood according to claim 1, characterized in that: The outer surface of the oil mesh panel is coated with a nano coating.

10. The range hood according to claim 1 or 9, characterized in that: A filter assembly is further provided in the installation shell. The filter assembly is located outside the oil mesh panel and blocks a portion of the first mesh.