Range hood

Abstract

This invention discloses a range hood, comprising: a main housing; and two flaps, both movably mounted on the main housing. The two flaps are switchable between an initial state, an inward-flipping state, and an outward-flipping state. In the initial state, the flap is flush with the air vent; in the inward-flipping state, the flap is positioned on the side of the air vent facing the smoke collection chamber; and in the outward-flipping state, the flap is positioned on the side of the air vent away from the smoke collection chamber. The two flaps are an upper flap and a lower flap, with the upper flap positioned above the lower flap. The upper and lower flaps can selectively be in the same or different states. This allows the upper and lower flaps to selectively be in the same or different states, thus, with the smoke vent open, the two flaps can adapt to different cooking conditions on the stove, improving the reliability of the range hood's smoke extraction under different cooking conditions and enhancing the user's convenience.

Description

Technical Field

[0001] This invention relates to the field of smoke hood technology, and in particular to a smoke hood. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove the waste from the stove and the harmful fumes produced during cooking and exhaust them outdoors. At the same time, it condenses and collects the fumes, reducing pollution, purifying the air, and providing safety protection against poisoning and explosion.

[0003] In related technologies, the smoke inlet of a range hood is generally located on the top or front panel. The effective range of the smoke inlet is small and the air suction direction is unidirectional. When the height of the cookware on the stove below is different, or when the amount of smoke produced by the cookware is different, the smoke inlet cannot effectively suck up the oil fumes produced by the cookware below, causing some of the oil fumes to escape to the surrounding area. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a range hood in which the two flaps can be selectively in the same or different states according to the different heights of the cookware on the stove or the amount of oil fumes generated, thereby improving the smoke extraction efficiency of the smoke inlet under different working conditions of the cookware on the stove.

[0005] According to an embodiment of the present invention, a smoke hood includes: a main housing, wherein a smoke collection chamber is formed within the main housing, and the main housing is provided with an air vent communicating with the smoke collection chamber; two flaps, both of which are movably disposed on the main housing, and the two flaps are switchable between an initial state, an inward flipping state, and an outward flipping state. When the flap is in the initial state, the flap is flush with the air vent; when the flap is in the inward flipping state, the flap is on the side of the air vent facing the smoke collection chamber; when the flap is in the outward flipping state, the flap is on the side of the air vent away from the smoke collection chamber; wherein the two flaps are an upper flap and a lower flap, the upper flap being located above the lower flap, and the upper flap and the lower flap being selectively in the same or different states.

[0006] This allows the upper and lower flaps to be selectively in the same or different states. Thus, with the smoke inlet open, the two flaps can adapt to different cooking conditions of different pots on the stove, improving the reliability of the range hood in smoke extraction under different cooking conditions and the convenience of using the range hood for users.

[0007] According to some embodiments of the present invention, the range hood has a first inward flip-open mode, in which the upper flip plate is in the initial state and the lower flip plate is in the inward flip state; and / or the range hood has a second inward flip-open mode, in which the lower flip plate is in the initial state and the upper flip plate is in the inward flip state; and / or the range hood has a third inward flip-open mode, in which both the upper flip plate and the lower flip plate are in the inward flip state; and / or the range hood has a fourth inward flip-open mode, in which the upper flip plate is in the outward flip state and the lower flip plate is in the inward flip state; and / or the range hood has a fifth inward flip-open mode, in which the lower flip plate is in the outward flip state and the upper flip plate is in the inward flip state.

[0008] According to some embodiments of the present invention, the range hood has a first outward flip-open mode, in which the upper flip plate is in the outward flip state and the lower flip plate is in the initial state; and / or the range hood has a second outward flip-open mode, in which the lower flip plate is in the outward flip state and the upper flip plate is in the initial state; and / or the range hood has a third outward flip-open mode, in which both the upper flip plate and the lower flip plate are in the outward flip state; and / or the range hood has a closed mode, in which both the upper flip plate and the lower flip plate are in the initial state.

[0009] According to some embodiments of the present invention, the main housing includes a front plate located in front of the smoke collection chamber. The front plate has a cavity that is open to the front and recessed to the rear to form the air vent on the front side. The front plate has a smoke inlet, and the air vent communicates with the smoke collection chamber through the smoke inlet.

[0010] According to some embodiments of the present invention, when the flap is in an inward flipped state, the entire flap is located within the cavity and is in contact with at least a portion of the front plate.

[0011] According to some embodiments of the present invention, an upper rotating shaft is provided on the upper side of the upper flip plate, and the upper rotating shaft is rotatably connected to the upper edge of the front plate; a lower rotating shaft is provided on the lower side of the lower flip plate, and the lower rotating shaft is rotatably connected to the lower edge of the front plate.

[0012] According to some embodiments of the present invention, the front panel includes a first panel segment, a second panel segment, and a third panel segment. The first panel segment and the third panel segment are respectively disposed on the upper and lower sides of the second panel segment. The first panel segment is inclined forward relative to the second panel segment in an upward direction, and the third panel segment is inclined forward relative to the second panel segment in a downward direction. The smoke inlet is disposed on the second panel segment. When the upper panel is in an inward flipped state, the upper panel is in contact with the first panel segment; when the lower panel is in an inward flipped state, the lower panel is in contact with the third panel segment.

[0013] According to some embodiments of the present invention, the smoke hood further includes side baffles, which are respectively disposed on the left and right sides of the front plate. The cavity and the side baffles together form a smoke-gathering cavity. The smoke-gathering cavity is connected to the smoke collection cavity through the smoke inlet. The air outlet is flush with the front edge of the side baffle.

[0014] According to some embodiments of the present invention, fins are provided on the left and right sides of the flap, and the fins are movable in the cavity and the smoke collection cavity. When the flap is in the outward flipped state, the flap, the fins, and the cavity together form a smoke collection cavity, and the smoke inlet communicates with the smoke collection cavity and the smoke collection cavity; and / or upper fins are provided on the left and right sides of the upper flap, and lower fins are provided on the left and right sides of the lower flap, and the lower fins have side smoke inlets; when both the upper flap and the lower flap are in the outward flipped state, a main smoke inlet is formed between the upper flap and the lower flap, and both the main smoke inlet and the side smoke inlet are connected to the smoke collection cavity.

[0015] According to some embodiments of the present invention, the smoke hood further includes: two drive components, the two drive components being connected to the two flaps in a one-to-one transmission connection and working synchronously or independently.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a range hood in the off mode according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the range hood in the third inward flip-open mode according to the first embodiment of the present invention; Figure 3 This is a schematic diagram of the range hood in the third outward flip-open mode according to the first embodiment of the present invention; Figure 4 This is a schematic diagram of the range hood in the second outward flip-open mode according to the first embodiment of the present invention; Figure 5 This is a schematic diagram of a range hood in the first inward flip-open mode according to a first embodiment of the present invention; Figure 6 This is a schematic diagram of the range hood in the second inward flip-open mode according to the first embodiment of the present invention; Figure 7 This is a schematic diagram of the range hood in the first outward flip-open mode according to the first embodiment of the present invention; Figure 8 This is a schematic diagram of the range hood in the off mode according to the second embodiment of the present invention; Figure 9 This is a schematic diagram of the range hood in the third outward flip-open mode according to the second embodiment of the present invention; Figure 10 This is a cross-sectional view of the range hood in the third outward flip-open mode according to the second embodiment of the present invention; Figure 11 yes Figure 10 A schematic diagram of region A in the middle; Figure 12 This is a schematic diagram of the range hood in the third inward flip-open mode according to the second embodiment of the present invention; Figure 13 This is a cross-sectional view of the range hood in the third inward flip-open mode according to the second embodiment of the present invention; Figure 14 yes Figure 13 A schematic diagram of region B in the middle; Figure 15 This is a schematic diagram of the range hood in the second outward flip-open mode according to the second embodiment of the present invention; Figure 16 This is a schematic diagram of the range hood in the first inward flip-open mode according to the second embodiment of the present invention; Figure 17 This is a schematic diagram of the range hood in the second inward flip-open mode according to the second embodiment of the present invention; Figure 18 This is a schematic diagram of the range hood in the first outward flip-open mode according to the second embodiment of the present invention; Figure 19 This is a partial schematic diagram of a range hood according to a second embodiment of the present invention.

[0018] Figure label: 100. Range hood; 10. Main shell; 11. Front panel; 111. First panel segment; 112. Second panel segment; 113. Third panel segment; 12. Cavity; 13. Smoke inlet; 14. Smoke collection chamber; 15. Top panel; 16. Side baffle; 17. Smoke gathering chamber; 19. Air outlet; 20. Flip plate; 21. Upper flip plate; 211. Upper fin plate; 22. Lower flip plate; 221. Lower fin plate; 23. Side smoke inlet; 24. Main smoke inlet; 25. Upper rotating shaft; 26. Lower rotating shaft; 30. Driver components. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0020] See the image below for reference. Figures 1-19 A range hood 100 according to an embodiment of the present invention is described.

[0021] Combination Figures 1-19 As shown, the smoke hood 100 according to an embodiment of the present invention may mainly include: a main housing 10 and a flap 20, wherein a smoke collection chamber 14 is formed in the main housing 10, and the main housing 10 is provided with an air vent 19, which is connected to the smoke collection chamber 14. There are two flaps 20, and both flaps 20 are movably disposed on the main housing 10. The two flaps 20 can be switched between an initial state, an inward flipping state, and an outward flipping state. When the flap 20 is in the initial state, the flap 20 is flush with the air vent 19; when the flap 20 is in the inward flipping state, the flap 20 is on the side of the air vent 19 facing the smoke collection chamber 14; when the flap 20 is in the outward flipping state, the flap 20 is on the side of the air vent 19 away from the smoke collection chamber 14. The two flaps 20 are an upper flap 21 and a lower flap 22, respectively. The upper flap 21 is located above the lower flap 22, and the upper flap 21 and the lower flap 22 are selectively in the same or different states.

[0022] Specifically, the main housing 10 includes a smoke collection chamber 14, which is connected to the fan in the range hood 100. The main housing 10 is provided with an air vent 19. When the fan is working normally, a negative pressure will be formed at the air vent 19, so that the oil fumes generated by the cookware on the stove below the main housing 10, such as a wok, steamer or stew pot, can enter the smoke collection chamber 14 through the air vent 19.

[0023] Furthermore, both the upper flap 21 and the lower flap 22 can switch between an initial state, an inward flipping state, and an outward flipping state. The upper flap 21 and the lower flap 22 can be selectively in the same or different states. It should be noted that when the flap 20 is in the initial state, the flap 20 is flush with the air vent 19; when the flap 20 is in the inward flipping state, the flap 20 is on the side of the air vent 19 facing the smoke collection chamber 14; when the flap 20 is in the outward flipping state, the flap 20 is on the side of the air vent 19 away from the smoke collection chamber 14.

[0024] That is, when both the upper flap 21 and the lower flap 22 are in their initial state, the upper flap 21 and the lower flap 22 can close the air vent 19, thereby closing the smoke collection chamber 14, and at this time the fan will be turned off.

[0025] When at least one of the upper flap 21 and the lower flap 22 is in an inward flipped state, or when at least one of the upper flap 21 and the lower flap 22 is in an outward flipped state, the air vent 19 is at least partially opened, thereby creating a negative pressure in the opened part of the air vent 19 under normal operation of the fan, so that the oil fumes generated by the cookware on the stove below enter the smoke collection chamber 14 through the air vent 19.

[0026] Therefore, with the vent 19 open, the upper flap 21 and the lower flap 22 can be combined in different ways, allowing the range hood 100 to have different vent opening forms. This allows the fumes to enter the vent 19 from different directions. Thus, when the height of the cookware is different or the amount of fumes is different, the range hood 100 can adapt to cookware of different heights or different amounts of fumes by using different vent opening forms. This ensures the smoke extraction effect while facilitating the normal use of cookware of different heights, thereby improving the user experience of the range hood 100.

[0027] In some embodiments of the present invention, the selection factors for different vent opening forms of the range hood 100 can be other than the height of the cookware and the amount of oil fumes, and can be selected by the user in actual use, without limitation here.

[0028] This allows the upper flap 21 and the lower flap 22 to be selectively in the same or different states. Thus, with the smoke inlet 13 open, the two flaps 20 can adapt to different working conditions of different cookware on the stove, which can improve the smoke extraction reliability of the range hood 100 under different cooking conditions and the user's convenience in using the range hood 100.

[0029] In some embodiments of the present invention, the range hood 100 has a first inward flip-open mode, in which the upper flip plate 21 is in an initial state and the lower flip plate 22 is in an inward flip state; and / or the range hood 100 has a second inward flip-open mode, in which the lower flip plate 22 is in an initial state and the upper flip plate 21 is in an inward flip state; and / or the range hood 100 has a third inward flip-open mode, in which both the upper flip plate 21 and the lower flip plate 22 are in an inward flip state; and / or the range hood 100 has a fourth inward flip-open mode, in which the upper flip plate 21 is in an outward flip state and the lower flip plate 22 is in an inward flip state; and / or the range hood 100 has a fifth inward flip-open mode, in which the lower flip plate 22 is in an outward flip state and the upper flip plate 21 is in an inward flip state.

[0030] Combination Figure 5 and Figure 16 As shown, when the range hood 100 is in the first inward flip-open mode, the upper flap 21 is in the initial state and the lower flap 22 is in the inward flip state. In this mode, the upper part of the vent 19 corresponding to the upper flap 21 is blocked and closed by the upper flap 21, and the lower flap 22 is on the side of the vent 19 facing the smoke collection chamber 14. The lower part of the vent 19 corresponding to the lower flap 22 is opened and opens downward. In this way, the area of ​​the vent 19 that is opened is larger, which can increase the smoke extraction range of the vent 19. In addition, the lower flap 22 in the inward flip state can provide stable guidance for oil fumes. It is suitable for cooking methods such as steaming, stewing, and boiling. In these scenarios, there are fewer oil fumes and more water vapor. It does not require a large negative pressure for smoke extraction, and low wind speed can effectively extract and exhaust the fumes. It can be paired with a low-power fan to save energy and reduce noise.

[0031] Combination Figure 6 and Figure 17 As shown, when the range hood 100 is in the second inward flip-open mode, the lower flap 22 is in the initial state and the upper flap 21 is in the inward flip state. In this mode, the lower part of the vent 19 corresponding to the lower flap 22 is blocked and closed by the lower flap 22, and the upper flap 21 is on the side of the vent 19 facing the smoke collection chamber 14. The upper part of the vent 19 corresponding to the upper flap 21 is opened and opens upward. In practical applications, the opened part of the vent 19 is far away from the pots and pans on the stove, and the lower flap 22 will also block the pots and pans on the stove from the opened part of the vent 19, making it inconvenient for the opened part of the vent 19 to absorb the oil fumes generated by the pots and pans on the stove. However, in some cases, the oil fumes in the kitchen may overflow to the ceiling. In this mode, the distance between the opened part of the vent 19 and the oil fumes on the ceiling is closer, which makes it convenient for the range hood to directly absorb the oil fumes that overflow to the ceiling.

[0032] In addition, when the user needs to clean the upper flap 21, the range hood 100 can be in the second inward flip-open mode. The waste oil used by the user to clean the upper flap 21 will drip directly into the side of the lower flap 22 facing the smoke collection chamber 14 and eventually enter the oil cup. The waste oil will not dirty the stove, making it more convenient for the user to clean the upper flap 21.

[0033] Combination Figure 2 , Figure 12 , Figure 13 and Figure 14 As shown, when the range hood 100 is in the third inward flip-open mode, both the upper flip plate 21 and the lower flip plate 22 are in the inward flip state. In this mode, neither the upper flip plate 21 nor the lower flip plate 22 will occupy the space on the side of the air vent 19 away from the smoke collection chamber 14. When a tall steamer or a tall stew pot is placed on the stove, the setting of the upper flip plate 21 and the lower flip plate 22 will not affect the placement of tall pots on the stove, making it convenient to use pots while ensuring smoke extraction efficiency.

[0034] Furthermore, with the vent 19 fully open and its large area, although this results in a lower negative pressure at the vent 19, it is well-suited for taller cookware. The fumes from taller cookware typically originate at the top, and the top of the cookware is close to the vent 19, or it may be positioned directly on the side of the vent 19 furthest from the smoke collection chamber 14 and adjacent to the vent 19. Thus, once fumes are generated, they can directly and quickly enter the smoke collection chamber 14 through the vent 19 without requiring a large negative pressure at the vent 19. Moreover, the lower negative pressure at the vent 19 also reduces the noise of the smoke extraction, thereby improving the user experience of the range hood 100.

[0035] It should be added that taller cookware, such as steamers and stew pots, do not produce as much oil smoke as frying pans. Therefore, even if the negative pressure of vent 19 is relatively small, the smoke extraction effect can be guaranteed and less oil smoke will overflow.

[0036] In some embodiments of the present invention, in this mode, when the position of the oil fumes generated by the cookware is higher than the smoke inlet 13, the upper flap 21, which is in an inward-flipping state, can effectively guide and block the oil fumes, preventing the oil fumes at higher positions from overflowing upwards, thus improving the smoke extraction effect. Additionally, the lower flap 22 can also effectively guide the oil fumes, resulting in a better guiding and concentrating effect for the smoke extraction, making it smoother and more stable.

[0037] Furthermore, in this mode, the power of the fan can be adaptively reduced to operate at a relatively low power, which can reduce energy consumption while ensuring stable smoke extraction.

[0038] It should be noted that in this mode, the height of the pots and pans on the stove can be higher than the height of the pots and pans on the stove when the range hood 100 is in the first inward flip mode.

[0039] In some embodiments of the present invention, when the range hood 100 is in the fourth inward flip-open mode, the upper flip plate 21 is in the outward flip state and the lower flip plate 22 is in the inward flip state. In this mode, since the lower flip plate 22 is located on the side of the air vent 19 facing the smoke collection chamber 14, the lower flip plate 22 will not occupy the space on the side of the air vent 19 away from the smoke collection chamber 14, and the pots on the stove can be relatively high. Compared with the first inward flip-open mode, the upper flip plate 21 is located on the side of the air vent 19 away from the smoke collection chamber 14, and the absorption port formed between the upper flip plate 21 and the lower flip plate 22 moves forward and downward relative to the air vent 19. This can improve the smoke extraction effect. In addition, as the oil fumes enter the smoke collection chamber 14 from the bottom up through the air vent 19, the upper flip plate 21 can also hinder the upward overflow of the oil fumes. This can improve the range and effect of smoke collection, thereby further improving the reliability of smoke extraction.

[0040] In some embodiments of the present invention, when the range hood 100 is in the fifth inward flip-open mode, the lower flip plate 22 is in the outward flip state and the upper flip plate 21 is in the inward flip state. In practical applications, in this mode, the absorption port formed between the upper flip plate 21 and the lower flip plate 22 is far away from the pots on the stove, and the lower flip plate 22 will also block the pots on the stove from the opened part of the air vent 19, making it inconvenient for the opened part of the air vent 19 to absorb the smoke from the pots on the stove. Similar to the second inward flip-open mode, in some cases, the oil fumes in the kitchen will overflow to the ceiling. When the range hood 100 is in the fifth inward flip-open mode, the absorption port formed between the upper and lower flip plates 21 and the lower flip plate 22 is closer to the oil fumes on the ceiling, which can conveniently absorb the oil fumes that overflow to the ceiling.

[0041] In this mode, users can also clean the upper flap 21. The waste oil used to clean the upper flap 21 will drip directly into the lower flap 22 on the side facing the smoke collection chamber 14 and eventually into the oil cup. The waste oil will not dirty the stove, making it more convenient for users to clean the upper flap 21.

[0042] In some embodiments of the present invention, the range hood 100 has a first outward-flipping opening mode, in which the upper flap 21 is in an outward-flipped state and the lower flap 22 is in an initial state; and / or the range hood 100 has a second outward-flipping opening mode, in which the lower flap 22 is in an outward-flipped state and the upper flap 21 is in an initial state; and / or the range hood 100 has a third outward-flipping opening mode, in which both the upper flap 21 and the lower flap 22 are in an outward-flipped state; and / or the range hood 100 has a closed mode, in which both the upper flap 21 and the lower flap 22 are in an initial state. Combination Figure 7 and Figure 18 As shown, when the range hood 100 is in the first outward flip-open mode, the upper flip plate 21 is in the outward flip state and the lower flip plate 22 is in the initial state. This makes the absorption port formed between the upper flip plate 21 and the lower flip plate 22 face more forward and downward relative to the air vent 19, which makes it easier for the air vent 19 to smoke, and also increases the range of smoke collection, thereby improving the smoke extraction effect of the range hood.

[0043] Combination Figure 4 and Figure 15 As shown, when the range hood 100 is in the second outward flip-open mode, the lower flip plate 22 is in the outward flip state, and the upper flip plate 21 is in the initial state. In actual application, in this mode, the absorption port formed between the upper flip plate 21 and the lower flip plate 22 is far away from the pots on the stove, and the lower flip plate 22 will also block the pots on the stove from the opened part of the air vent 19, making it inconvenient for the opened part of the air vent 19 to absorb the smoke from the pots on the stove. Similar to the second inward flip-open mode and the fifth inward flip-open mode, in some cases, the oil fumes in the kitchen will overflow to the ceiling. When the range hood 100 is in the second outward flip-open mode, the distance between the absorption port formed between the upper flip plate 21 and the lower flip plate 22 and the oil fumes on the ceiling is closer, which can facilitate the absorption of oil fumes that overflow to the ceiling.

[0044] In this mode, users can also clean the upper flap 22. The waste oil used by users to clean the upper flap 21 will drip directly into the side of the lower flap 22 facing the smoke collection chamber 14 and eventually enter the oil cup. The waste oil will not dirty the stove, making it more convenient for users to clean the upper flap 21.

[0045] Combination Figure 3 , Figure 9 , Figure 10 and Figure 11As shown, when the range hood 100 is in the third outward flip-open mode, both the upper flip plate 21 and the lower flip plate 22 are in the outward flip state. In this mode, the lower edge of the upper flip plate 21 and the upper edge of the lower flip plate 22 are spaced apart to form the main smoke inlet 24. The main smoke inlet 24 is further forward than the air vent 19, and the area of ​​the main smoke inlet 24 is smaller than that of the air vent 19. The negative pressure at the main smoke inlet 24 is greater, and the smoke extraction efficiency is higher.

[0046] Thus, when the cookware produces a large amount of oil fumes, the range hood 100 can be put into the third outward flip opening mode, which allows a large amount of oil fumes to quickly enter the air vent 19 under the large negative pressure of the main smoke inlet 24, and then enter the smoke collection chamber 14 through the air vent 19.

[0047] It should be noted that when the range hood 100 is in the third outward flip-open mode, it is suitable for a large amount of oil fume. Generally, woks or frying pans will produce a large amount of oil fume. Since the height of woks or frying pans is generally small, even if the upper flip plate 21 and the lower flip plate 22 are both in the outward flip state, occupying the space on the side of the air vent 19 away from the smoke collection chamber 14, it will not affect the normal placement or use of the wok or frying pan on the stove.

[0048] Combination Figure 1 and Figure 8 As shown, in some embodiments of the present invention, when the range hood 100 is in the off mode, both the upper flap 21 and the lower flap 22 are in the initial state. In this mode, the fan is turned off, and the range hood 100 in this mode does not have the function of smoking. However, the upper flap 21 and the lower flap 22 in this mode can prevent the backflow of oil fumes or odors in the flue, so that the oil fumes or odors enter the air vent 19 through the smoke collection chamber 14 and are dispersed into the kitchen through the air vent 19. This can ensure the reliability of the range hood 100 and the user's experience.

[0049] Furthermore, this design makes the smoke inlet 13 invisible to the user, which improves the aesthetics of the range hood, enhances the user's experience with the range hood 100, and also prevents mosquitoes from entering the smoke collection chamber 14 through the smoke inlet 13.

[0050] Combination Figures 1-19 As shown, the main housing 10 includes a front plate 11, which is located in front of the smoke collection chamber 14. The front plate 11 has a cavity 12 that is open to the front and recessed to the rear to form an air vent 19 on the front side. The front plate 11 has a smoke inlet 13, and the air vent 19 is connected to the smoke collection chamber 14 through the smoke inlet 13.

[0051] Specifically, the smoke collection chamber 14 is connected to the fan in the range hood 100. The front plate 11 is located on the front side of the smoke collection chamber 14, and a smoke inlet 13 is provided on the front plate 11. When the fan is working normally, a negative pressure will be formed at the smoke inlet 13, so that the oil fumes generated by the cookware on the stove below the main housing 10, such as a wok, steamer or stew pot, can enter the smoke collection chamber 14 through the smoke inlet 13.

[0052] In some embodiments of the present invention, the front plate 11 is formed with a cavity 12 that is open to the front and recessed to the rear. In the direction from back to front, the cross-sectional area of ​​the cavity 12 gradually increases. The smoke inlet 13 is located on the rear side of the cavity 12. The oil fumes generated by the cookware on the stove can enter the cavity 12 from the front side of the cavity 12, and under the gathering and guiding effect of the cavity 12, they gradually enter the smoke collection chamber 14 through the smoke inlet 13, and part of them are discharged outwards, while part of them condense and adhere to the inside of the smoke collection chamber 14.

[0053] Furthermore, the oil droplets that condense on the inner wall of the smoke collection chamber 14 can flow down the surface of the front plate 11 to the oil guide groove below, and then into the oil cup. That is, the front plate 11 acts as an oil guide bridge to prevent oil stains from accumulating at the connection of the smoke collection chamber 14.

[0054] With this configuration, the cavity 12 can improve the smoke collection and concentration effect of the smoke machine 100 without changing the area of ​​the smoke inlet 13 itself and ensuring the negative pressure strength of the smoke inlet 13, thereby improving the smoke extraction effect at the smoke inlet 13.

[0055] It should be noted that in this invention, the front finger cavity 12 faces the user, while the rear finger cavity 12 is away from the user.

[0056] It should be noted that, in this invention, the upper side refers to the side of the main housing 10 away from the pot on the stove, and the lower side refers to the side of the main housing 10 close to the pot on the stove.

[0057] It should be noted that the smoke inlet 13 of the present invention is located on the front plate 11 of the main housing 10, that is, on the side plate of the main housing 10 facing the user in the front-rear direction, and not on the top plate 15 of the main housing 10 located directly above the stove.

[0058] In some embodiments of the present invention, a lighting component and an air curtain component are provided on the top plate 15. The light emitted by the lighting component can shine downwards from the top plate 15, thereby illuminating the area below the top plate 15, that is, illuminating the cooking area where the user is located, thus providing auxiliary lighting for the user's cooking process and improving the performance of the range hood 100. The large lighting component on the top plate 15 can increase the lighting intensity and make the overall appearance of the range hood 100 more aesthetically pleasing.

[0059] Furthermore, an air curtain outlet is also provided on the top panel 15, and the air curtain exhaust outlet is connected to the air curtain assembly. The air curtain assembly can form an air curtain in front of the front panel 11, blocking the oil fumes from spreading and escaping to the front side of the front panel 11, which can further reduce the escape of oil fumes, thereby improving the oil fume extraction effect of the range hood 100 and improving the user experience.

[0060] Combination Figure 2 , Figure 5 , Figure 6 and Figure 12 As shown, when the flap 20 is in the inward flipping state, the entire flap 20 is located inside the cavity 12 and is in contact with at least a portion of the front plate 11.

[0061] Specifically, when the flap 20 is in the inward flipped state, the entire flap 20 is located inside the cavity 12, and the entire flap 20 is in close contact with the front plate 11. With this arrangement, on the one hand, the flap 20 will not occupy any space outside the cavity 12, and will not affect the placement of taller cookware on the stove. On the other hand, the contact between the flap 20 and the front plate 11 will only increase the thickness of the front plate 11. The flap 20 will not obstruct the flow of oil fumes in the cavity 12, that is, it will not affect the guiding effect of the cavity 12 on the oil fumes. This not only ensures the smoke extraction efficiency of the range hood 100, but also prevents the noise of the range hood 100 from increasing, and can improve the structural reliability of the range hood 100.

[0062] Combination Figures 1-19 As shown, an upper rotating shaft 25 is provided on the upper side of the upper flip plate 21, and the upper rotating shaft 25 is rotatably connected to the upper edge of the front plate 11. A lower rotating shaft 26 is provided on the lower side of the lower flip plate 22, and the lower rotating shaft 26 is rotatably connected to the lower edge of the front plate 11.

[0063] Specifically, since the upper rotating shaft 25 is located on the upper side of the upper flip plate 21, rather than between the two sides of the upper flip plate 21 in the vertical direction, the upper flip plate 21 is entirely within the cavity 12 and fits against the front plate 11 when it is in the inward flipped open state. Similarly, the lower rotating shaft 26 is located on the lower side of the lower flip plate 22, rather than between the two sides of the lower flip plate 22 in the vertical direction, and the lower flip plate 22 is entirely within the cavity 12 and fits against the front plate 11 when it is in the inward flipped open state. Therefore, by simply placing the rotating shaft on one side of the flip plate 20 in the vertical direction, the flip plate 20 in the inward flipped open state can be entirely within the cavity 12 without the need for setting up other components or modifying other structures of the range hood 100, thus simplifying the structural design of the range hood 100.

[0064] It should be noted that seals can be fitted on the outer sides of the upper rotating shaft 25 and the lower rotating shaft 26. The seals are then connected to the upper flap 21 and the lower flap 22. In this way, the seals can seal the upper side of the upper flap 21 and the upper edge of the front plate 11, preventing smoke from escaping between the upper side of the upper flap 21 and the upper edge of the front plate 11. The seals can also seal the lower side of the lower flap 22 and the lower edge of the front plate 11, preventing smoke from escaping between the upper side of the lower flap 22 and the lower edge of the front plate 11.

[0065] In addition, the seal also acts as a buffer and shock absorber, reducing impact noise when the flap 20 rotates into place. In some embodiments of the present invention, the seal can be made of high-temperature resistant silicone, which is resistant to oil and aging, has good elastic recovery, and a long service life.

[0066] Combination Figure 10 and Figure 13 As shown, the front panel 11 includes a first panel segment 111, a second panel segment 112, and a third panel segment 113. The first panel segment 111 and the third panel segment 113 are respectively disposed on the upper and lower sides of the second panel segment 112. The first panel segment 111 is inclined forward relative to the second panel segment 112 in the upward direction, and the third panel segment 113 is inclined forward relative to the second panel segment 112 in the downward direction. The smoke inlet 13 is disposed on the second panel segment 112. When the upper flip panel 21 is in the inward flipped state, the upper flip panel 21 is in contact with the first panel segment 111; when the lower flip panel 22 is in the inward flipped state, the lower flip panel 22 is in contact with the third panel segment 113.

[0067] Specifically, the front plate 11 includes a first plate segment 111, a second plate segment 112, and a third plate segment 113. The first plate segment 111 and the third plate segment 113 are respectively disposed on the upper and lower sides of the second plate segment 112. By tilting the first plate segment 111 forward relative to the second plate segment 112 in the upward direction and the third plate segment 113 tilting forward relative to the second plate segment 112 in the downward direction, the smoke inlet 13 can be positioned between the first plate segment 111 and the third plate segment 113. The distance between the first plate segment 111 and the third plate segment 113 gradually decreases in the backward direction. This allows the fumes to be gradually guided and gathered from the front side of the cavity 12 to the smoke inlet 13, thereby improving the uniformity and smoothness of smoke extraction.

[0068] It should be noted that the upper and lower edges of the smoke inlet 13 and the second plate segment 112 are spaced apart. When the two flaps 20 are respectively attached to the first plate segment 111 and the third plate segment 113, the space between the upper edges of the smoke inlet 13 and the second plate segment 112 abuts against the upper flap 21, and the space between the lower edges of the smoke inlet 13 and the second plate segment 112 abuts against the lower flap 22. With this arrangement, the attachment of the upper flap 21 to the first plate segment 111 and the attachment of the lower flap 22 to the third plate segment 113 will not only not block the smoke inlet 13, but also make the smoke enter the smoke inlet 13 more smoothly.

[0069] Combination Figures 1-7 As shown, in the first embodiment of the present invention, the front panel 11 can be a whole panel on the front side of the main housing 10. When both the upper flap 21 and the lower flap 22 are in the closed state, the upper flap 21 and the lower flap 22 can serve as the original panel on the front side of the main housing 10.

[0070] It should be noted that both the upper flap 21 and the lower flap 22 can be made of glass. Glass flaps are smooth, transparent, and reflective, significantly enhancing the texture and quality of the range hood 100. Furthermore, glass flaps are easy to clean and maintain. The surface of the glass flap is smooth and flat, with almost no gaps or textures, making it difficult for oil stains to penetrate. Daily cleaning only requires a gentle wipe with a damp cloth or kitchen wipes to easily remove oil stains, saving time and effort.

[0071] Combination Figures 8-19 As shown, in the second embodiment of the present invention, a mounting groove is provided in the middle of the front panel of the main housing 10 in the vertical direction, and the front plate 11 is disposed in the mounting groove. That is, the front plate 11 only occupies a part of the front side of the main housing 10. When the upper flap 21 and the lower flap 22 are both in the closed state, the upper flap 21 and the lower flap 22 are flush with the front panel of the main housing 10, thereby forming part of the front panel of the main housing 10.

[0072] In the second embodiment, the upper flap 21, the lower flap 22, and the panel are all made of glass, which makes them easy to clean.

[0073] Combination Figures 1-19 As shown, the smoke hood 100 also includes side baffles 16, which are respectively disposed on the left and right sides of the front plate 11. The cavity 12 and the side baffles 16 together form a smoke collection cavity 17. The smoke collection cavity 17 is connected to the smoke collection cavity 14 through the smoke inlet 13. The air outlet 19 is flush with the front edge of the side baffles 16.

[0074] Specifically, a basic cavity 12 is punched inward from the front panel 11, and then a side baffle 16 is installed on each of the left and right sides. In this way, the front panel 11 and the left and right side baffles 16 together form a combined smoke collection cavity 17. That is, by adding shields on both sides of the smoke collection cavity 17, it is possible to effectively prevent oil fumes from escaping from both sides, and the smoke collection effect is better.

[0075] It should be noted that in this embodiment, the front edge of the air vent 19 is flush with the front edge of the side baffle 16. In this way, after the oil fumes enter the smoke collection chamber 17 through the air vent 19, the smoke collection chamber 17 has a better effect on gathering the oil fumes, which can improve the smoke extraction effect of the range hood 100.

[0076] Furthermore, the front edge of the side baffle 16 is rounded to prevent scratches to the user. Also, the side baffle 16 can be fixed to the side of the front panel 11 with self-tapping screws, with the screw holes located on the inside of the side baffle 16 to improve the overall consistency of the range hood 100.

[0077] Combination Figures 1-19 As shown, fins are provided on the left and right sides of the flap 20. The fins are movable in the cavity 12 and the smoke collection cavity 14. When the flap 20 is in the outward flipped state, the flap 20, the fins and the cavity 12 together form the smoke collection cavity 17. The smoke inlet 13 connects the smoke collection cavity 14 and the smoke collection cavity 17.

[0078] Specifically, by setting fins on the left and right sides of the flap 20, the fins will rotate with the flap 20, thereby making the fins movable in the cavity 12 and the smoke collection cavity 14. The front plate 11 is provided with clearance holes, which can avoid the movement of the fins. When the flap 20 is in the closed state, the fins are located in the cavity 12. Of course, the fins can also partially enter the smoke collection cavity 14 through the clearance holes and be connected to the drive assembly 30.

[0079] When the flap 20 is in the inward flip-open state, the flap 20 is in contact with the front plate 11, and the entire fin is completely in the smoke collection chamber 14, which can avoid the fin setting affecting the cavity 12's gathering and guiding of oil fumes.

[0080] When the flap 20 is in the outward-flipped open state, the flap 20, the fin plate, and the cavity 12 together form the smoke-collecting cavity 17. The smoke-collecting port 13 connects the smoke-collecting cavity 14 and the smoke-collecting cavity 17. That is, the fin plate and the flap 20 can move forward through the opening of the cavity 12, while ensuring the gathering effect of the oil fumes. This can improve the smoke-collecting effect when the flap 20 is in the outward-flipped open state.

[0081] The fins are made of stainless steel and can be integrally stamped with the metal frame of the flip plate 20. They are then bonded and fixed to the flip plate 20 with structural adhesive, resulting in high connection strength and preventing them from falling off easily.

[0082] In the width direction of the flap 20, that is, in the vertical direction, the size of the fin is less than or equal to the size of the flap 20. In this way, by limiting the size of the fin, it is ensured that the side sealing and blocking surface of the fin is completely within the left and right projection range of the flap 20. During the entire stroke of the flap 20, the mating sealing line between the fin and the inner wall of the cavity 12 is completely coincident with the flipping motion trajectory of the flap 20, without offset or breakpoint, thus avoiding the problems of misalignment of the sealing surface and uneven gap caused by the excessive width of the fin.

[0083] Furthermore, by constraining the fin size within the width range of the flap 20, the airflow boundaries on both sides of the smoke collection chamber 17 are made completely symmetrical, and the cooking fumes form a stable negative pressure flow field within the smoke collection chamber 17, preventing the extra protruding structure caused by the ultra-wide fins from causing airflow vortices and turbulence on both sides.

[0084] In addition, when the size of the fin plate is less than or equal to the size of the flip plate 20, the movement trajectory of the fin plate is completely within the movement envelope of the flip plate 20. During the full-angle flipping process, the fin plate will not interfere with the movement of the main housing 10, side baffle 16, drive assembly 30 and other surrounding components, thus solving the problems of flipping jamming, abnormal noise and wear caused by the excessive width of the fin plate.

[0085] In some embodiments of the present invention, the projection of the fin on a plane perpendicular to the left-right direction is triangular or fan-shaped. The projection of the fin on a plane perpendicular to the left-right direction is designed as triangular or fan-shaped. One right-angled side of the triangular fin is fixedly connected to the side of the flap 20, and the other right-angled side extends along the rotation direction of the flap 20. The center of the fan-shaped fin coincides with the rotation axis center of the flap 20, and the radius of the fan is the same as the rotation radius of the flap 20.

[0086] Thus, triangular or fan-shaped fins have excellent air guiding performance, enabling them to guide the fumes smoothly to the smoke inlet 13, reducing wind resistance and airflow noise. At the same time, the triangular and fan-shaped structures have high structural strength, are not easily deformed, and have a long service life.

[0087] Of course, users can also choose the appropriate fin shape according to different design requirements.

[0088] Combination Figure 3 and Figure 9 As shown, upper wing plates 211 are provided on the left and right sides of the upper flip plate 21, and lower wing plates 221 are provided on the left and right sides of the lower flip plate 22. The lower wing plate 221 has a side smoke inlet 23. When both the upper flip plate 21 and the lower flip plate 22 are in the outward flipped state, a main smoke inlet 24 is formed between the upper flip plate 21 and the lower flip plate 22. Both the main smoke inlet 24 and the side smoke inlet 23 are connected to the smoke collection chamber 17.

[0089] In some embodiments of the present invention, upper fins 211 are provided on the left and right sides of the upper flip plate 21, and lower fins 221 are provided on the left and right sides of the lower flip plate 22. In practical applications, when both the upper flip plate 21 and the lower flip plate 22 are in the outward flip state, that is, when the range hood 100 is in the third outward flip opening mode, a main smoke inlet 24 is formed between the upper flip plate 21 and the lower flip plate 22. When the main smoke inlet 24 absorbs the oil fumes generated by the cookware below, the oil fumes will inevitably collide with the lower flip plate 22. Although most of the oil fumes will enter the smoke collection chamber 17 through the main smoke inlet 24 under the negative pressure of the main smoke inlet 24, some oil fumes will still flow to the left and right, thus overflowing on the left and right sides of the lower flip plate 22.

[0090] Therefore, by opening a side smoke inlet 23 on the lower fin plate 221, and connecting the side smoke inlet 23 to the smoke collection chamber 17, and also having negative pressure at the side smoke inlet 23, when some oil fumes flow to the left and right sides of the lower flap 22 and are about to overflow, the side smoke inlet 23 can draw the oil fumes that are about to overflow into the smoke collection chamber 17. This can improve the smoke extraction effect of the range hood 100 when it is in the outward-opening mode, thereby improving the reliability of the range hood 100.

[0091] It should be noted that the upper fin plate 211 in this embodiment is a complete fin plate, and there is no need to open the upper fin plate 211. In this way, the upper fin plate 211 can prevent the oil fumes after entering the smoke collection chamber 17 from flowing out from the left and right sides of the flip plate 20, which can improve the smoke collection effect of the smoke collection chamber 17. This can further improve the smoke extraction effect of the range hood 100 when it is in the outward flip-open mode.

[0092] In some other embodiments of the present invention, upper fins 211 are provided on the left and right sides of the upper flap 21, and the left and right sides of the lower flap 22 may not be provided with fins. The left and right sides of the lower flap 22 are spaced apart from the front plate 11 in the front-back direction, thereby directly forming side smoke inlets 23. When some oil fumes flow to the left and right sides of the lower flap 22 and are about to overflow, the side smoke inlets 23 formed by the spaced areas between the left and right sides of the lower flap 22 and the front plate 11 in the front-back direction can draw the oil fumes that are about to overflow into the smoke collection chamber 17.

[0093] According to an optional embodiment of the invention, the width of the smoke-collecting chamber 17 is equal to the width of the smoke-collecting chamber 14. Thus, when the width of the smoke-collecting chamber 17 is equal to the width of the smoke-collecting chamber 14, the cross-section of the fumes entering the smoke-collecting chamber 14 from the smoke-collecting chamber 17 will not suddenly expand or shrink, allowing the airflow to pass through in a straight line with almost no obstruction. This reduces eddies and pressure loss, minimizes wind resistance, and lowers noise. Furthermore, the wind speed distribution within the entire width of the smoke inlet 13 is more uniform, avoiding the phenomenon of faster winds in the middle and slower winds at the sides, ensuring that the fumes generated by both burners are drawn in evenly.

[0094] According to another optional embodiment of the invention, the width of the smoke collection chamber 17 is smaller than the width of the smoke collection chamber 14. This way, as the fumes enter the smoke collection chamber 14 from the smoke collection chamber 17, the cross-section of the airflow channel gradually increases, allowing for a smooth airflow transition without the generation of turbulence or eddies due to abrupt changes in cross-section. This design reduces pressure loss in the airflow, improves the efficiency of the centrifugal fan system, and also reduces operating noise. Furthermore, this design prevents fumes from accumulating at the outlet of the smoke collection chamber 17, avoiding the condensation and dripping of oil there.

[0095] Combination Figure 19 As shown, in some embodiments of the present invention, the range hood 100 further includes two drive components 30. The two drive components 30 are connected to the two flaps 20 in a one-to-one transmission connection and work synchronously or independently. The two drive components 30 are connected to the two flaps 20 in a one-to-one transmission connection, and the two drive components 30 drive the two flaps 20 synchronously to the same state, or drive the two flaps 20 independently to different states. In this way, if one of the two flaps 20 fails, the corresponding drive component 30 can be directly found for repair or replacement, which can facilitate the maintenance of the range hood 100.

[0096] It should be noted that the drive assembly 30 is a hydraulic drive assembly, which includes a hydraulic cylinder and a piston. One end of the piston is connected to the flap 20, and the other end is movably disposed in the hydraulic cylinder. The lifting and lowering movement of the piston relative to the hydraulic cylinder can directly drive the flap 20 to rotate. Other components of the smoke hood 100 do not need to move synchronously with the piston or the flap 20 to realize the drive assembly 30 to drive the flap 20, which makes the state switching of the flap 20 simpler and more direct.

[0097] Additionally, the drive assembly 30 can be disposed on the rear side of the front plate 11, that is, on the side of the front plate 11 opposite to the cavity 12. In some embodiments of the present invention, the drive assembly 30 can be directly integrated into the smoke collection cavity 14; in other embodiments of the present invention, the drive assembly 30 is located outside the smoke collection cavity 14.

[0098] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0099] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, characterized in that, include: The main housing (10) has a smoke collection chamber (14) formed inside it, and the main housing (10) is provided with an air vent (19) which is connected to the smoke collection chamber (14). Two flaps (20) are provided, and both flaps (20) are movably disposed on the main housing (10). The two flaps (20) can switch between an initial state, an inward flipping state, and an outward flipping state. When the flap (20) is in the initial state, the flap (20) is flush with the air vent (19). When the flap (20) is in the inward flipping state, the flap (20) is on the side of the air vent (19) facing the smoke collection chamber (14). When the flap (20) is in the outward flipping state, the flap (20) is on the side of the air vent (19) away from the smoke collection chamber (14). Among them, the two flaps (20) are an upper flap (21) and a lower flap (22), the upper flap (21) is located above the lower flap (22), and the upper flap (21) and the lower flap (22) are selectively in the same or different states.

2. The range hood according to claim 1, characterized in that, The range hood (100) has a first inward flip-open mode. When the range hood (100) is in the first inward flip-open mode, the upper flip plate (21) is in the initial state, and the lower flip plate (22) is in the inward flip state; and / or The range hood (100) has a second inward flip-open mode. When the range hood (100) is in the second inward flip-open mode, the lower flip plate (22) is in the initial state, and the upper flip plate (21) is in the inward flip state; and / or The range hood (100) has a third inward flip-open mode. When the range hood (100) is in the third inward flip-open mode, both the upper flip plate (21) and the lower flip plate (22) are in the inward flip state; and / or The range hood (100) has a fourth inward flip-open mode. When the range hood (100) is in the fourth inward flip-open mode, the upper flip plate (21) is in the outward flip state, and the lower flip plate (22) is in the inward flip state; and / or The range hood (100) has a fifth inward flip-open mode. When the range hood (100) is in the fifth inward flip-open mode, the lower flip plate (22) is in the outward flip state and the upper flip plate (21) is in the inward flip state.

3. The smoke hood according to claim 1, characterized in that, The range hood (100) has a first outward flip-open mode. When the range hood (100) is in the first outward flip-open mode, the upper flip plate (21) is in the outward flip state, and the lower flip plate (22) is in the initial state; and / or The range hood (100) has a second outward-flipping opening mode. When the range hood (100) is in the second outward-flipping opening mode, the lower flip plate (22) is in the outward-flipping state, and the upper flip plate (21) is in the initial state; and / or The range hood (100) has a third outward-flipping opening mode. When the range hood (100) is in the third outward-flipping opening mode, both the upper flip plate (21) and the lower flip plate (22) are in the outward-flipping state; and / or The range hood (100) has a closed mode. When the range hood (100) is in the closed mode, both the upper flap (21) and the lower flap (22) are in the initial state.

4. The range hood according to claim 1, characterized in that, The main housing (10) includes a front plate (11) located in front of the smoke collection chamber (14). The front plate (11) has a cavity (12) that is open to the front and recessed to the rear to form the air vent (19) on the front side. The front plate (11) has a smoke inlet (13) and the air vent (19) is connected to the smoke collection chamber (14) through the smoke inlet (13).

5. The range hood according to claim 4, characterized in that, When the flap (20) is in the inward flipping state, the entire flap (20) is located inside the cavity (12) and is in contact with at least a portion of the front plate (11).

6. The range hood according to claim 4, characterized in that, The upper flap (21) is provided with an upper rotating shaft (25) on its upper side, and the upper rotating shaft (25) is rotatably connected to the upper edge of the front plate (11). The lower flap (22) is provided with a lower rotating shaft (26) on its lower side, and the lower rotating shaft (26) is rotatably connected to the lower edge of the front plate (11).

7. The range hood according to claim 4, characterized in that, The front panel (11) includes a first panel segment (111), a second panel segment (112), and a third panel segment (113). The first panel segment (111) and the third panel segment (113) are respectively disposed on the upper and lower sides of the second panel segment (112). The first panel segment (111) is inclined forward relative to the second panel segment (112) in the direction from bottom to top. The third panel segment (113) is inclined forward relative to the second panel segment (112) in the direction from top to bottom. The smoking port (13) is disposed on the second panel segment (112). When the upper flip plate (21) is in the inward flip state, the upper flip plate (21) is in contact with the first panel segment (111). When the lower flip plate (22) is in the inward flip state, the lower flip plate (22) is in contact with the third panel segment (113).

8. The range hood according to claim 4, characterized in that, It also includes side baffles (16), which are respectively disposed on the left and right sides of the front plate (11). The cavity (12) and the side baffles (16) together form a smoke collection cavity (17). The smoke collection cavity (17) is connected to the smoke collection cavity (14) through the smoke inlet (13). The air outlet (19) is flush with the front edge of the side baffles (16).

9. The range hood according to claim 4, characterized in that, The flap (20) is provided with fins on its left and right sides. The fins are movable in the cavity (12) and the smoke collection cavity (14). When the flap (20) is in the outward flipped state, the flap (20), the fins, and the cavity (12) together form the smoke collection cavity (17). The smoking port (13) connects the smoke collection cavity (14) and the smoke collection cavity (17); and / or The upper flap (21) is provided with upper wing plates (211) on the left and right sides, and the lower flap (22) is provided with lower wing plates (221) on the left and right sides. The lower wing plate (221) has a side smoke inlet (23). When the upper flap (21) and the lower flap (22) are both in the outward flipped state, a main smoke inlet (24) is formed between the upper flap (21) and the lower flap (22). The main smoke inlet (24) and the side smoke inlet (23) are both connected to the smoke collection chamber (17).

10. The smoke hood according to claim 1, characterized in that, Also includes: Two drive components (30) are connected to the two flaps (20) in a one-to-one transmission connection and work synchronously or independently.

Images