Air inlet guide structure and range hood

Abstract

The application provides an air inlet guide structure and a range hood. The air inlet guide structure comprises an air inlet piece and an air inlet guide piece. The air inlet piece is provided with a plurality of first air inlets. The air inlet piece and the air inlet guide piece are sequentially arranged along an air inlet direction. The air inlet guide piece is provided with a second air inlet. The second air inlet is communicated with an air inlet cavity of the range hood, so that the airflow entering from the plurality of first air inlets is guided to a fan assembly of the range hood through the second air inlet, thereby improving the overall flow and optimizing the overall noise of the range hood.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and more specifically, to an air intake and guiding structure and a range hood. Background Technology

[0002] Range hoods can draw in cooking fumes and steam, and then expel them outdoors through a fan assembly. However, because range hoods generate airflow through their fan assembly, the airflow can easily collide and produce significant noise. Summary of the Invention

[0003] The present invention provides an air intake and airflow guiding structure and a range hood to improve at least one of the above-mentioned technical problems.

[0004] The embodiments of the present invention achieve the above objectives through the following technical solutions.

[0005] In a first aspect, embodiments of the present invention provide an air inlet guiding structure for a range hood. The air inlet guiding structure includes an air inlet component and an air inlet guiding component. The air inlet component is provided with a plurality of first air inlets. The air inlet component and the air inlet guiding component are arranged sequentially along the air inlet direction. The air inlet guiding component is provided with a second air inlet, which communicates with the air inlet cavity of the range hood, so that the airflow entering from the plurality of first air inlets is guided to the fan assembly of the range hood through the second air inlet.

[0006] In some implementations, the first air inlet and the second air inlet are offset from each other.

[0007] In some embodiments, the plurality of first air inlets include a first sub-air inlet and a second sub-air inlet, with the second air inlet located between the first sub-air inlet and the second sub-air inlet.

[0008] In some embodiments, the air inlet guide includes a guide plate with a second air inlet, and the guide plate is inclined relative to the air inlet.

[0009] In some embodiments, the air inlet guide further includes a first side baffle and a second side baffle, which are connected to opposite sides of the guide plate and face the air inlet and abut against the air inlet. The second side baffle protrudes from the guide plate toward the air inlet at a greater height than the first side baffle protrudes from the guide plate toward the air inlet.

[0010] In some embodiments, the air inlet guide also includes an air outlet, which is disposed on the side of the guide plate away from the air inlet and has a guide cavity connected to the second air inlet. The air outlet is provided with multiple air outlet holes connected to the guide cavity. The airflow from the second air inlet is guided through the guide cavity and through the multiple air outlet holes to the fan assembly of the range hood.

[0011] In some embodiments, the air outlet includes an air outlet inclined wall, which is inclined relative to the guide plate, and a plurality of air outlet holes penetrate the air outlet inclined wall and communicate with the guide cavity.

[0012] In some embodiments, the air outlet inclined wall includes a first inclined wall and a second inclined wall. The first inclined wall includes a first end and a second end opposite to each other, and the second inclined wall includes a third end and a fourth end opposite to each other. The second end is connected to the fourth end, and the first end and the third end are connected to the guide plate. From the first end to the second end, the distance between the first inclined wall and the guide plate gradually increases, and from the third end to the fourth end, the distance between the second inclined wall and the guide plate gradually increases. Multiple air outlet holes are evenly arranged on the first inclined wall and the second inclined wall.

[0013] In some embodiments, the air inlet guiding structure further includes a guide shroud located between the first sub-air inlet and the second sub-air inlet, and opposite to the second air inlet, so that the airflow entering from the first air inlet is guided into the second air inlet via the guide shroud.

[0014] In some embodiments, the air deflector includes a first air deflector surface and a second air deflector surface. A first air deflector channel is formed between the first air deflector surface and the air deflector plate. Airflow entering from the first sub-air inlet enters the second air inlet through the first air deflector channel. A second air deflector channel is formed between the second air deflector surface and the air deflector plate. Airflow entering from the second sub-air inlet enters the second air inlet through the second air deflector channel. The first air deflector channel and the second air deflector channel gradually decrease in size along the airflow direction.

[0015] In some embodiments, the air inlet guide further includes an air outlet, which is disposed on the side of the guide plate away from the air inlet and has a guide cavity that communicates with the first guide channel and the second guide channel.

[0016] Secondly, embodiments of the present invention also provide a range hood, which includes a housing, a fan assembly, and an air inlet guiding structure according to any of the above embodiments. The housing has an air inlet cavity. The fan assembly is installed inside the air inlet cavity. The air inlet guiding structure is installed on the housing, and a second air inlet communicates with the air inlet cavity so that airflow entering from the first air inlet is guided to the fan assembly through the second air inlet.

[0017] In some embodiments, the housing is further provided with a third air inlet, which is connected to the air inlet cavity and is located below the first air inlet.

[0018] In the air intake guide structure and range hood provided by the embodiments of the present invention, the air intake component of the air intake guide structure is provided with multiple first air inlets, the air intake component and the air intake guide component are arranged sequentially along the air intake direction, and the air intake guide component is provided with a second air inlet. The second air inlet is connected to the air intake cavity of the range hood, so that the airflow entering from the multiple first air inlets is guided to the fan assembly of the range hood through the second air inlet, thereby improving the overall airflow and optimizing the overall noise. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the range hood provided in an embodiment of the present invention is shown.

[0021] Figure 2 It shows Figure 1 A cross-sectional diagram of a range hood.

[0022] Figure 3 It shows Figure 2 An enlarged schematic diagram of section III of the range hood.

[0023] Figure 4 It shows Figure 1 Another cross-sectional view of the range hood.

[0024] Figure 5 It shows Figure 3 A schematic diagram of the air intake guide component of a range hood.

[0025] Figure 6 A cross-sectional schematic diagram of a range hood provided in another embodiment of the present invention is shown.

[0026] Figure 7 It shows Figure 6 An enlarged schematic diagram of point VII of the range hood.

[0027] Figure 8 A cross-sectional schematic diagram of a range hood provided in another embodiment of the present invention is shown.

[0028] Figure 9 It shows Figure 8 An enlarged schematic diagram of point IX of the range hood.

[0029] Figure 10 It shows Figure 9 A schematic diagram of the air intake guide component of a range hood. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Please see Figures 1 to 2 This invention provides a range hood 100. The range hood 100 includes a housing 10, a fan assembly 30, and an air inlet guide structure 50, both of which are mounted on the housing 10. The range hood 100 can generate airflow through the fan assembly 30 to draw fumes and water vapor into the housing 10, while the air inlet guide structure 50 can guide fumes and water vapor to the air inlet of the fan assembly 30, thereby improving overall airflow and reducing overall noise.

[0033] in, Figure 2 The direction indicated by the thick arrow with a dotted line is the direction of airflow.

[0034] Please see Figures 3 to 4 The air intake guide structure 50 includes an air intake component 51 and an air intake guide component 53, which are arranged sequentially along the air intake direction. The air intake component 51 can be directly exposed outside the housing 10, while the air intake guide component 53 can be located inside the housing 10.

[0035] The air inlet component 51 is provided with multiple first air inlets 511. Under the action of the fan assembly 30, cooking fumes from outside the range hood 100 can enter the range hood 100 through the multiple first air inlets 511. The multiple first air inlets 511 help to increase the flow rate of cooking fumes entering the range hood 100 per unit time, thereby enhancing the fume extraction effect of the range hood 100.

[0036] In this application, the term "multiple" means two or more. For example, multiple first air inlets 511 may include first sub-air inlets 5111 and second sub-air inlets 5113, with the first sub-air inlets 5111 and the second sub-air inlets 5113 being distributed alternately, for example, the first sub-air inlets 5111 and the second sub-air inlets 5113 may be distributed alternately along the left and right directions.

[0037] Refer to the relative positions of the structures in the diagram for directional terms such as "left," "right," "up," and "down." For example... Figure 4 In the middle, the first sub-air inlet 5111 is located to the left of the second sub-air inlet 5113, the second sub-air inlet 5113 is located to the right of the first sub-air inlet 5111, the air inlet guide 53 is located above the first sub-air inlet 5111 or the second sub-air inlet 5113, and the first sub-air inlet 5111 or the second sub-air inlet 5113 is located below the air inlet guide 53.

[0038] The air inlet guide 53 is provided with a second air inlet 531, which is connected to the air inlet cavity 11 of the range hood 100. This allows the airflow entering from the multiple first air inlets 511 to be guided through the second air inlet 531 to the fan assembly 30 of the range hood 100, thereby improving the overall airflow and optimizing the overall noise level. The air inlet cavity 11 of the range hood 10 can be a structure of the housing 10, for example, the housing 10 has an air inlet cavity 11, and the fan assembly 30 is installed inside the air inlet cavity 11.

[0039] In addition, the housing 10 may also be provided with a third air inlet 13, which is connected to the air inlet cavity 11 and is located below the first air inlet 511. This helps the range hood 100 to form a structure with both upper and lower suction, which helps to enhance the smoke extraction effect of the range hood 100.

[0040] In addition, since the second air inlet 531 of the air inlet guide component 53 guides the airflow to the fan assembly 30 of the range hood 100, it separates the airflow entering from the first air inlet 511 from the airflow entering from the third air inlet 13, effectively reducing the collision between the two airflows caused by differences in flow rate, velocity, etc., and weakening the vortex formed by the two airflows, thereby effectively increasing the air volume and reducing noise.

[0041] The first air inlet 511 and the second air inlet 531 can be staggered. This effectively reduces the directional radiation of noise inside the housing 10 and helps to reduce the transmission of noise from inside the housing 10 to the outside through the first sub-air inlet 5111 and the second sub-air inlet 5113.

[0042] The second air inlet 531 can be located between the first sub-air inlet 5111 and the second sub-air inlet 5113, such that the first sub-air inlet 5111 and the second sub-air inlet 5113 are located on the left and right sides of the second air inlet 531, respectively. In this way, by rationally arranging the positions of the second air inlet 531, the first sub-air inlet 5111, and the second sub-air inlet 5113, it is helpful to reduce the outward propagation of noise and also to minimize the difference in the path distance of airflow from the first sub-air inlet 5111 to the second air inlet 531 between the two.

[0043] In other embodiments, the arrangement of the second air inlet 531, the first sub-air inlet 5111, and the second sub-air inlet 5113 can also be different.

[0044] Please see Figure 3 and Figure 5 The air inlet guide 53 may include a guide plate 533, which may be generally flat. The guide plate 533 is provided with the aforementioned second air inlet 531. The guide plate 533 is inclined relative to the air inlet 51, so the air inlet guide 53 can change the direction of airflow entering the air inlet cavity 11 through the second air inlet 531, which helps to guide the airflow as far as possible toward the fan assembly 30.

[0045] The air inlet guide 53 may further include a first side baffle 535 and a second side baffle 537. The first side baffle 535 and the second side baffle 537 can be connected to opposite sides of the guide plate 533, and the first side baffle 535 and the second side baffle 537 face the air inlet 51 and abut against the air inlet 51. The height of the second side baffle 537 protruding relative to the guide plate 533 towards the air inlet 51 is greater than the height of the first side baffle 535 protruding relative to the guide plate 533 towards the air inlet 51, so that after the air inlet guide 53 is installed on the air inlet 51, the guide plate 533 is inclined relative to the air inlet 51.

[0046] Please see Figure 6 and Figure 7The air inlet guiding structure 50 may further include a guide shroud 55, which may be located between the first sub-air inlet 5111 and the second sub-air inlet 5113, such that the first sub-air inlet 5111 and the second sub-air inlet 5113 may be located on the left and right sides of the guide shroud 55, respectively. The guide shroud 55 may be opposite to the second air inlet 531, so that the airflow entering from the first air inlet 511 is guided into the second air inlet 531 through the guide shroud 55. In this way, it helps to reduce the collision between the airflows entering from the first sub-air inlet 5111 and the second sub-air inlet 5113, so that the airflows entering from different sub-air inlets all flow towards the second air inlet 531, thereby further reducing the noise generated by the collision between airflows.

[0047] in, Figure 6 The direction indicated by the thick arrow with a dotted line is the direction of airflow.

[0048] The air deflector 55 may include a first air deflector surface 551, and a first air deflector channel 555 is formed between the first air deflector surface 551 and the air deflector plate 533. The airflow entering from the first sub-air inlet 5111 enters the second air inlet 531 through the first air deflector channel 555. The first air deflector channel 555 gradually narrows along the airflow direction. In this way, the first air deflector channel 555 can better guide the airflow to the second air inlet 531.

[0049] The first guide surface 551 may protrude from the surface of the air inlet 51 facing the air inlet guide 53. The first guide surface 551 may be an arc surface, and the center of the arc of the first guide surface 551 may be located on the side of the first guide surface 551 facing the air inlet guide 53. In this way, while guiding the airflow to the second air inlet 531, the first guide surface 551 can also effectively guide oil dripping from above the guide cover 55 (e.g., at the second air inlet 531 of the air inlet guide 53), thereby guiding the oil towards the first sub-air inlet 5111. This helps to prevent oil from accumulating in the guide cover 55 and makes it easier for the user to clean oil at the first sub-air inlet 5111 without having to reach into the air inlet guide structure 50. In other embodiments, the first guide surface 551 may also have other structures.

[0050] The air deflector 55 may include a second air deflector surface 553, and a second air deflector channel 557 is formed between the second air deflector surface 553 and the air deflector plate 533. The airflow entering from the second sub-air inlet 5113 enters the second air inlet 531 through the second air deflector channel 557, and the second air deflector channel 557 gradually narrows along the airflow direction. In this way, the second air deflector channel 557 can better guide the airflow to the second air inlet 531.

[0051] The second guide surface 553 may protrude from the surface of the air inlet 51 facing the air inlet guide 53. The second guide surface 553 may be an arc surface, and the center of the arc of the second guide surface 553 may be located on the side of the second guide surface 553 facing the air inlet guide 53. In this way, while guiding the airflow to the second air inlet 531, the second guide surface 553 can also effectively guide oil dripping from above the guide cover 55 (e.g., at the second air inlet 531 of the air inlet guide 53), thereby guiding the oil towards the second sub-air inlet 5113. This helps to prevent oil from accumulating in the guide cover 55 and makes it easier for the user to clean oil at the second sub-air inlet 5113 without having to reach into the air inlet guide structure 50. In other embodiments, the second guide surface 553 may also have other structures.

[0052] The air deflector 55 can also serve as a lampshade. For example, the air deflector 55 can protrude towards the second air inlet 531, forming the aforementioned first guide surface 551 and second guide surface 553 on the surface of the air deflector 55 facing the second air inlet 531. The surface of the air deflector 55 facing away from the second air inlet 531 is recessed to form a lamp mounting space, which can be used to install lamps. This helps to fully utilize the space of the air deflector 55 and improve its utilization rate.

[0053] Furthermore, the structure of the air inlet guide 53 can be adapted to the structure of the air deflector 55. For example, please refer to... Figures 8 to 10 The air inlet guide 53 may further include an air outlet 539, which is disposed on the side of the guide plate 533 opposite to the air inlet 51. The air outlet 539 has a guide cavity 5391, which is connected to the second air inlet 531. The air outlet 539 is provided with a plurality of air outlet holes 5393, which are connected to the guide cavity 5391. The airflow from the second air inlet 531 is guided through the guide cavity 5391 and through the plurality of air outlet holes 5393 to the fan assembly 30 of the range hood 100.

[0054] in, Figure 8 The direction indicated by the thick arrow with a dotted line is the direction of airflow.

[0055] For example, the flow guide cavity 5391 and the first flow guide channel 555. In this way, the flow guide cavity 5391 can better fill the situation where the first flow guide channel 555 gradually decreases in size along the airflow direction, so that the flow area between the entire air inlet guide 53 and the flow guide cover 55 is not reduced due to the protrusion of the first flow guide surface 551.

[0056] For example, the flow guide cavity 5391 is also connected to the second flow guide channel 557. In this way, the flow guide cavity 5391 helps to better fill the situation where the second flow guide channel 557 gradually decreases in size along the airflow direction, so that the flow area between the entire air inlet guide 53 and the flow guide shroud 55 is not reduced due to the protrusion of the second flow guide surface 553.

[0057] The air outlet 539 may include an air outlet inclined wall 9395, which may be inclined relative to the guide plate 533, and multiple air outlet holes 5393 may penetrate the air outlet inclined wall 9395 and communicate with the guide cavity 5391.

[0058] The air outlet inclined wall 9395 may include a first inclined wall 9397 and a second inclined wall 9399, with the first inclined wall 9397 connected to the second inclined wall 9399. Multiple air outlet holes 5393 are evenly distributed on the first inclined wall 9397 and the second inclined wall 9399. The first inclined wall 9397 and the second inclined wall 9399 may be two symmetrical structures or different structures.

[0059] The first inclined wall 9397 includes a first end 9392 and a second end 9394, which are opposite to each other. The second inclined wall 9399 includes a third end 9396 and a fourth end 9398, which are opposite to each other. The second end 9394 is connected to the fourth end 9398, and the first end 9392 and the third end 9396 are connected to the guide plate 533.

[0060] From the first end 9392 to the second end 9394, the distance between the first inclined wall 9397 and the guide plate 533 can gradually increase. Thus, as airflow flows from the first guide channel 555 through the air outlet 5393 of the first inclined wall 9397 into the air inlet 11, the channel formed between the first inclined wall 9397 and the first guide surface 551 is a gradually expanding channel, which can effectively reduce the airflow velocity and noise generation. Furthermore, as noise propagates from the air outlet 5393 of the first inclined wall 9397 through the first guide channel 555 to the first air inlet 511, the channel formed between the first inclined wall 9397 and the first guide surface 551 is a gradually narrowing channel, which can effectively suppress the outward radiation of noise and further optimize noise levels.

[0061] From the third end 9396 to the fourth end 9398, the distance between the second inclined wall 9399 and the guide plate 533 can gradually increase. Thus, as airflow flows from the second guide channel 557 through the air outlet 5393 of the second inclined wall 9399 into the air inlet 11, the channel formed between the second inclined wall 9399 and the second guide surface 553 is a gradually expanding channel, which can effectively reduce the airflow velocity and noise generation. Furthermore, as noise propagates from the air outlet 5393 of the second inclined wall 9399 through the second guide channel 557 to the first air inlet 511, the channel formed between the second inclined wall 9399 and the second guide surface 553 is a gradually contracting channel, which can effectively suppress the outward radiation of noise and further optimize noise levels.

[0062] Please see Figure 2 The range hood 100 may also include a noise reduction assembly 70, which can be installed inside the housing 10. For example, the noise reduction assembly can be located in the path of airflow from the third air inlet 13 to the fan assembly 30, thus helping to further reduce the noise generated by the airflow. The noise reduction assembly 70 can be a sponge or other structure.

[0063] In the air intake guide structure 50 and the range hood 100 provided in the embodiments of the present invention, the air intake component 51 of the air intake guide structure 50 is provided with a plurality of first air inlets 511, the air intake component 51 and the air intake guide component 53 are arranged sequentially along the air intake direction, and the air intake guide component 53 is provided with a second air inlet 531. The second air inlet 531 is connected to the air intake cavity 11 of the range hood 100 so that the airflow entering from the plurality of first air inlets 511 is guided to the fan assembly 30 of the range hood 100 through the second air inlet 531, thereby improving the overall airflow and optimizing the overall noise.

[0064] In this invention, unless otherwise explicitly specified or limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection; they can be a direct connection or an indirect connection via an intermediate medium; they can be a connection within two components; they can be merely surface contact; or a surface contact connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this invention, the illustrative 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 a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this invention, as well as the features of different embodiments or examples.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An air inlet guiding structure for a range hood, characterized in that, The air inlet guide structure includes: The housing is provided with an air inlet cavity; An air inlet component, installed on the housing, is provided with multiple first air inlets; and An air inlet guide is installed on the housing. The air inlet and the air inlet guide are arranged sequentially along the air inlet direction. The air inlet guide includes a guide plate, a first side baffle, and a second side baffle. The first side baffle and the second side baffle are connected to opposite sides of the guide plate and face the air inlet and abut against the air inlet. The guide plate is provided with a second air inlet. The second air inlet communicates with the air inlet cavity so that the airflow entering from the plurality of first air inlets is guided to the fan assembly of the range hood through the second air inlet. The housing is provided with a third air inlet, which is connected to the air inlet cavity and is located below the first air inlet. The air guide plate of the air inlet guide separates the airflow entering from the first air inlet from the airflow entering from the third air inlet.

2. The air inlet guiding structure of the range hood according to claim 1, characterized in that, The first air inlet and the second air inlet are offset from each other.

3. The air inlet guiding structure of the range hood according to claim 2, characterized in that, The plurality of first air inlets include a first sub-air inlet and a second sub-air inlet, wherein the second air inlet is located between the first sub-air inlet and the second sub-air inlet.

4. The air inlet guiding structure of the range hood according to any one of claims 1-3, characterized in that, The air guide plate is inclined relative to the air inlet.

5. The air inlet guiding structure of the range hood according to claim 4, characterized in that, The second side baffle protrudes towards the air inlet from the guide plate at a greater height than the first side baffle protrudes towards the air inlet from the guide plate.

6. The air inlet guiding structure of the range hood according to claim 4, characterized in that, The air inlet guide also includes an air outlet, which is disposed on the side of the guide plate away from the air inlet and has a guide cavity. The guide cavity is connected to the second air inlet. The air outlet has multiple air outlet holes, which are connected to the guide cavity. The airflow from the second air inlet is guided through the guide cavity and through the multiple air outlet holes to the fan assembly of the range hood.

7. The air inlet guiding structure of the range hood according to claim 6, characterized in that, The air outlet includes an air outlet inclined wall, which is inclined relative to the guide plate, and a plurality of air outlet holes penetrate the air outlet inclined wall and communicate with the guide cavity.

8. The air inlet guiding structure of the range hood according to claim 7, characterized in that, The air outlet inclined wall includes a first inclined wall and a second inclined wall. The first inclined wall includes a first end and a second end opposite to each other. The second inclined wall includes a third end and a fourth end opposite to each other. The second end is connected to the fourth end. The first end and the third end are connected to the guide plate. From the first end to the second end, the distance between the first inclined wall and the guide plate gradually increases. From the third end to the fourth end, the distance between the second inclined wall and the guide plate gradually increases. A plurality of air outlet holes are evenly arranged on the first inclined wall and the second inclined wall.

9. The air inlet guiding structure of the range hood according to claim 3, characterized in that, The air inlet guiding structure also includes a guide hood, which is located between the first sub-air inlet and the second sub-air inlet and is opposite to the second air inlet, so that the airflow entering from the first air inlet is guided into the second air inlet through the guide hood.

10. The air inlet guiding structure of the range hood according to claim 9, characterized in that, The air guide shroud includes a first air guide surface and a second air guide surface. A first air guide channel is formed between the first air guide surface and the air guide plate. Airflow entering from the first sub-air inlet enters the second air inlet through the first air guide channel. A second air guide channel is formed between the second air guide surface and the air guide plate. Airflow entering from the second sub-air inlet enters the second air inlet through the second air guide channel. The first air guide channel and the second air guide channel gradually decrease in size along the airflow direction.

11. The air inlet guiding structure of the range hood according to claim 10, characterized in that, The air inlet guide also includes an air outlet, which is disposed on the side of the guide plate away from the air inlet and has a guide cavity, which is connected to the first guide channel and the second guide channel.

12. A range hood, characterized in that, The range hood includes: Wind turbine components; and According to any one of claims 1 to 11, the air intake guiding structure of the range hood is wherein the fan assembly is installed in the air intake cavity, and the second air inlet is connected to the air intake cavity so that the airflow entering from the first air inlet is guided to the fan assembly via the second air inlet.

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