Range hood

Abstract

The utility model provides a kind of range hood.The range hood includes machine case, fume collecting hood and air duct isolation component.Fan assembly is equipped in machine case, and fan assembly has first air inlet and second air inlet.Fume collecting hood is communicated with machine case, and first air inlet and second air inlet are provided on fume collecting hood.At least part of air duct isolation component is arranged in machine case to form air inlet cavity communicated with second air inlet and second air inlet only.In this way, the oil fume sucked by two air inlets respectively can have corresponding smoke exhaust path respectively, which avoids the situation that two oil fumes impact each other and form turbulent flow before flowing to fan assembly, not only effectively improves the suction and exhaust efficiency of range hood, but also significantly reduces the energy consumption and noise of range hood.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to a range hood. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Range hoods can adopt a dual air inlet design, with the lower air inlet drawing out fumes near the cookware, while the upper air inlet provides secondary extraction of rising fumes.

[0003] However, the fumes drawn in from the top air inlet and the fumes drawn in from the bottom air inlet, after flowing through the guide channels of the range hood, will meet and mix in the confluence space in front of the fan inside the range hood. When the two streams of fumes mix, they will impact and entangle each other, gradually forming turbulence. The turbulence formed will not only affect the exhaust efficiency of the range hood, but also significantly increase the energy consumption and noise of the range hood. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a range hood is provided, the technical solution of which is as follows.

[0005] The range hood includes a casing, a smoke collection hood, and an air duct isolation assembly. The casing houses a fan assembly with a first air inlet and a second air inlet. The smoke collection hood is connected to the casing and has a first air inlet and a second air inlet. At least a portion of the air duct isolation assembly is located within the casing to form an air intake chamber that communicates only with the second air inlet and the second air inlet.

[0006] The range hood of this invention features an air duct isolation component that forms an air intake chamber that communicates only with the second air inlet and the second air intake port. This allows the air intake chambers to be independently configured. Fumes drawn in through the first air inlet can flow into the first air intake port of the fan assembly, while fumes drawn in through the second air inlet can flow through the air intake chamber into the second air intake port of the fan assembly. This ensures that the fumes drawn in through the two air inlets have corresponding exhaust paths, preventing the two streams of fumes from colliding and forming turbulence before reaching the fan assembly. This not only effectively improves the range hood's extraction efficiency but also significantly reduces its energy consumption and noise.

[0007] For example, the axis of the fan assembly is parallel to the horizontal line, the first air inlet is located on the rear side wall of the chassis, and the second air inlet is located on the front side wall of the chassis. This arrangement, on the one hand, ensures that the fumes flowing into both the first and second air inlets have shorter flow paths, reducing the retention of fumes within the chassis and decreasing oil adhesion. On the other hand, it also ensures balanced airflow from both sides of the fan assembly, reducing turbulence in the fume airflow within the chassis, lowering noise, and improving the stability of fume flow.

[0008] For example, when the longitudinal cross-section of the fume hood is either a figure-eight shape or a triangle, the second air inlet is located at the upper part of the fume hood, and the first air inlet is located at the lower part of the fume hood; or, when the longitudinal cross-section of the fume hood is a straight line, the first air inlet and the second air inlet are spaced apart on the fume hood, or the second air inlet is arranged around the outside of the first air inlet. With this configuration, when the range hood is a figure-eight shaped range hood or a side-suction triangular range hood, the first air inlet can be located at the lower part of the fume hood to correspond to the height of the cookware, thereby absorbing and exhausting the fumes generated during cooking. The second air inlet can be located at the upper part of the fume hood, above the cookware, thereby absorbing and exhausting overflowing fumes when the fume concentration is high. This allows for the stratified capture and exhaust of fumes, effectively improving the exhaust effect and efficiency of the range hood. When the range hood is a ceiling-mounted, linear type, the first and second air inlets can be spaced apart on the smoke collection hood, or the second air inlet can be arranged around the outside of the first air inlet, thus making the range hood suitable for various usage scenarios. In this way, the duct isolation component can be applied to different types of cooking fumes, effectively ensuring the flexibility and versatility of its use.

[0009] For example, the duct isolation assembly includes an upper isolation member and a lower isolation member arranged vertically and connected, with the cross-section of the lower isolation member gradually decreasing from bottom to top. This arrangement ensures the sealing and firmness of the connection between the upper and lower isolation members, preventing oil fumes from overflowing when flowing through the duct isolation assembly, effectively improving the range hood's extraction efficiency and user experience. Furthermore, the gradually decreasing cross-section of the lower isolation member allows for a Laval effect when oil fumes flow through it, effectively increasing the flow velocity of the oil fumes and thus improving the range hood's extraction efficiency.

[0010] For example, the upper isolation member is integrally formed by bending a metal material; and / or, the lower isolation member is integrally formed by bending a metal material. This configuration allows the upper and / or lower isolation members to be formed using bent metal materials, effectively simplifying the manufacturing process of the duct isolation assembly and reducing its manufacturing cost and difficulty.

[0011] For example, the upper spacer has a first connecting end at the end facing the lower spacer, and the lower spacer has a second connecting end at the end facing the upper spacer. When the upper and lower spacers are connected, the first and second connecting ends form a surface contact. This configuration, through the surface contact between the first and second connecting ends, not only effectively improves the stability of the connection between the upper and lower spacers, but also allows for a larger contact area between the upper and lower spacers, effectively improving the sealing performance between them.

[0012] For example, the upper and lower isolation components cooperate with the inner wall of the chassis to form an air inlet cavity. With this configuration, the upper and lower isolation components can be respectively installed on the inner wall of the chassis to form an air inlet cavity for the flow of oil fumes. This ensures that oil fumes can flow into the fan assembly through the air inlet cavity, while also greatly simplifying the structure of the air inlet assembly and reducing the manufacturing difficulty and cost of the air duct isolation component.

[0013] For example, the upper and lower isolation components enclose and form the air inlet cavity. With this configuration, the upper and lower isolation components can be used as independent assembly units, forming the air inlet cavity using only the upper and lower isolation components, without the need for other components within the range hood. On one hand, this significantly reduces the number of connection interfaces with the chassis, avoiding gaps and poor sealing issues that easily occur when splicing multiple components, effectively improving the sealing performance of the air duct isolation assembly. On the other hand, since the air inlet cavity is completely enclosed independently by the upper and lower isolation components, when oil fumes flow within the air inlet cavity, they only contact the inner walls of the upper and lower isolation components, preventing condensation on the inner sidewalls of the chassis. This reduces cleaning dead zones inside the chassis, lowers the difficulty of cleaning during subsequent maintenance, and prevents long-term accumulation of oil stains that produce odors, extending the service life of the range hood and ensuring more hygienic and stable operation.

[0014] For example, the duct isolation assembly also includes a seal disposed at the connection between the upper and lower isolation components. This configuration, with the seal at the connection between the upper and lower isolation components, significantly improves the sealing performance between them, effectively preventing the leakage of oil fumes.

[0015] For example, the duct isolation assembly further includes a first fastener and a second fastener. A first fixing portion is formed on the edge of the upper isolation member, and a second fixing portion is formed on the edge of the lower isolation member. The first fastener passes through the first fixing portion and the fan assembly, and the second fastener passes through the second fixing portion and the housing. This configuration allows the duct isolation assembly, fan assembly, and housing to be stably connected using the first and second fasteners. This not only ensures the robustness of the connections between the various components within the range hood but also reduces the vibration generated by the duct isolation assembly when fumes flow through it, effectively improving the robustness and reliability of the range hood.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0017] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0018] Figure 1 A cross-sectional view of a range hood according to an exemplary embodiment of the present invention is shown;

[0019] Figure 2 A front view of a range hood according to an exemplary embodiment of the present invention is shown;

[0020] Figure 3 A perspective view of an air duct isolation assembly according to an exemplary embodiment of the present invention is shown;

[0021] Figure 4 A front view of an air duct isolation assembly according to an exemplary embodiment of the present invention is shown;

[0022] Figure 5 A side view of an air duct isolation assembly according to an exemplary embodiment of the present invention is shown;

[0023] Figure 6 A front view of the upper isolator connected to a fan assembly according to an exemplary embodiment of the present invention is shown;

[0024] Figure 7A cross-sectional view showing the upper isolator connected to a fan assembly according to an exemplary embodiment of the present invention is shown;

[0025] Figure 8 A cross-sectional view of the lower separator according to an exemplary embodiment of the present invention is shown;

[0026] Figure 9 A cross-sectional view of a range hood according to another exemplary embodiment of the present invention is shown;

[0027] Figure 10 A front view of a duct isolation assembly according to another exemplary embodiment of the present invention is shown;

[0028] Figure 11 A perspective view of a duct isolation assembly according to another exemplary embodiment of the present invention is shown;

[0029] Figure 12 A side view of a duct isolation assembly according to another exemplary embodiment of the present invention is shown.

[0030] The components indicated by the reference numerals in the figures are as follows:

[0031] 1. Chassis; 11. Rear side wall; 12. Front side wall; 13. Exhaust vent; 2. Fan assembly; 21. First air inlet; 22. Second air inlet; 3. Smoke hood; 31. First air inlet; 32. Second air inlet; 4. Duct isolation assembly; 41. Upper isolation component; 411. First connecting end; 412. First fixing part; 42. Lower isolation component; 421. Second connecting end; 422. Second fixing part; 5. Air inlet cavity. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0033] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0034] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0035] One embodiment of this utility model provides a range hood that avoids the turbulence caused by the oil fumes drawn in by two separate air inlets colliding with each other before reaching the fan assembly 2. The following will describe a range hood according to an embodiment of this utility model in detail with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 As shown, the range hood includes a casing 1, a smoke hood 3, and an air duct isolation assembly 4. A fan assembly 2 is housed within the casing 1, having a first air inlet 21 and a second air inlet 22. The smoke hood 3 is connected to the casing 1 and has a first air inlet 31 and a second air inlet 32. At least a portion of the air duct isolation assembly 4 is disposed within the casing 1 to form an air intake chamber 5 that communicates only with the second air inlet 32 ​​and the second air inlet 22.

[0037] The aforementioned casing 1 can form a receiving cavity, and the fan assembly 2 can be installed in the receiving cavity. When the fan assembly 2 is running, it can create negative pressure in the casing 1. Under the action of negative pressure, the oil fumes from the external environment can flow into the casing 1 through the first air inlet 31 and the second air inlet 32 ​​installed on the fume hood 3, and then be discharged through the exhaust port 13 of the casing 1.

[0038] The aforementioned air duct isolation component 4 can be installed inside the chassis 1, and an air inlet cavity 5 can be formed inside the air duct isolation component 4. One end of the air inlet cavity 5 can be connected to the second air inlet 32, and the other end of the air inlet cavity 5 can be connected to the fan assembly 2. The oil fumes drawn in through the second air inlet 32 ​​can flow to the fan assembly 2 through the air inlet cavity 5. Of course, the air duct isolation component 4 can also be fitted with the fan assembly 2 or the inner wall of the chassis 1 to form the aforementioned air inlet cavity 5, and this application does not make specific limitations in this regard.

[0039] In this invention, the duct isolation component 4 forms an air intake chamber 5 that is only connected to the second air inlet 32 ​​and the second air inlet 22. Thus, the air intake chamber 5 can be independently configured. Fumes drawn in through the first air inlet 31 can flow into the first air inlet 21 of the fan assembly 2, while fumes drawn in through the second air inlet 32 ​​can flow into the second air inlet 22 of the fan assembly 2 via the air intake chamber 5. This allows the fumes drawn in through the two air inlets to have corresponding exhaust paths, preventing the two streams of fumes from colliding and forming turbulence before reaching the fan assembly 2. This not only effectively improves the exhaust efficiency of the range hood but also significantly reduces its energy consumption and noise.

[0040] In some embodiments, such as Figure 1 and Figure 9 As shown, the axis of the fan assembly 2 is parallel to the horizontal line, the first air inlet 21 is set corresponding to the rear side wall 11 of the casing 1, and the second air inlet 22 is set corresponding to the front side wall 12 of the casing 1.

[0041] In the above embodiment, the first air inlet 21 can be provided corresponding to the rear side wall 11 of the chassis 1, while the second air inlet 22 can be provided corresponding to the front side wall 12 of the chassis 1. On the one hand, this allows the fumes flowing into both the first air inlet 21 and the second air inlet 22 to have shorter flow paths, reducing the retention of fumes in the chassis 1 and reducing the adhesion of oil stains inside the chassis 1. On the other hand, it can also ensure the balance of air intake on both sides of the fan assembly 2, reduce the turbulence of the fume airflow inside the chassis 1, reduce noise, and improve the stability of the fume flow.

[0042] In some embodiments, when the longitudinal section of the smoke hood 3 is either a figure-eight shape or a triangle, the second air inlet 32 ​​is disposed on the upper part of the smoke hood 3, and the first air inlet 31 is disposed on the lower part of the smoke hood 3; or, when the longitudinal section of the smoke hood 3 is a straight line shape, the first air inlet 31 and the second air inlet 32 ​​are disposed alternately on the smoke hood 3, or the second air inlet 32 ​​is arranged around the outside of the first air inlet 31.

[0043] In the above embodiments, when the range hood is a L-shaped range hood or a side-suction triangular range hood, the first air inlet 31 can be located at the lower part of the smoke collection hood 3, corresponding to the height of the cookware, to absorb and exhaust the fumes generated during cooking. The second air inlet 32 ​​can be located at the upper part of the smoke collection hood 3, above the cookware, to absorb and exhaust overflowing fumes when the fume concentration is high. This allows for the layered capture and extraction of fumes, effectively improving the extraction effect and efficiency of the range hood. When the range hood is a ceiling-mounted, straight-line range hood, the first air inlet 31 and the second air inlet 32 ​​can be spaced apart on the smoke collection hood 3, or the second air inlet 32 ​​can be arranged around the outside of the first air inlet 31, making the range hood suitable for various usage scenarios. Thus, the duct isolation component 4 can be applied to different types of fumes, effectively ensuring the flexibility and versatility of the duct isolation component 4.

[0044] In some embodiments, such as Figures 3 to 5 As shown, the air duct isolation assembly 4 includes an upper isolation member 41 and a lower isolation member 42 arranged vertically and connected, and the cross-section of the lower isolation member 42 gradually decreases from bottom to top.

[0045] The upper isolation member 41 can be covered on the second air inlet 22 of the fan assembly 2, and the lower isolation member 42 can be covered on the second air inlet 32 ​​of the smoke hood 3. The lower end of the upper isolation member 41 can be slightly larger than the upper end of the lower isolation member 42 so that the upper isolation member 41 can be fitted on the lower isolation member 42. Thus, the upper isolation member 41 and the lower isolation member 42 connected together can form an air inlet cavity 5 that is only connected to the second air inlet 32 ​​and the second air inlet 22.

[0046] The upper isolation member 41 can be formed in a disc shape. The disc-shaped upper isolation member 41 can be adapted to the shape of the second air inlet 22 of the fan assembly 2, so as to ensure that a sealing structure can be formed between the upper isolation member 41 and the second air inlet 22 of the fan assembly 2, while also reducing the volume and manufacturing cost of the upper isolation member 41.

[0047] like Figure 8 As shown, the lower isolator 42 can be constructed in an L-shape. The vertical part of the L-shaped lower isolator 42 can be used to connect with the upper isolator 41, and the horizontal part can be used to connect with the second air inlet 32.

[0048] The dimensions of the lower end of the aforementioned lower isolation member 42 can be adapted to the dimensions of the second air inlet 32 ​​of the fume hood 3, so as to ensure that the oil fumes flowing through the second air inlet 32 ​​can flow into the air duct isolation assembly 4 without leakage. Figure 8 As shown in the figure, the arrows can specifically represent the movement path of the oil fumes as they flow through the lower isolation component 42.

[0049] In the above embodiments, the upper isolation member 41 and the lower isolation member 42 can be arranged vertically and connected, ensuring the sealing and firmness of the connection between the upper isolation member 41 and the lower isolation member 42. This prevents oil fumes from overflowing when flowing through the air duct isolation assembly 4, effectively improving the range hood's suction and exhaust effect and the user experience. Moreover, the cross-section of the lower isolation member 42 can gradually decrease from bottom to top, so that the oil fumes can generate a Laval effect when flowing through the lower isolation member 42, effectively increasing the flow speed of the oil fumes and thus improving the range hood's suction and exhaust efficiency.

[0050] In some embodiments, such as Figures 9 to 12 As shown, the upper partition 41 is integrally formed by bending metal material; and / or, the lower partition 42 is integrally formed by bending metal material.

[0051] The metal material can be stainless steel. The upper isolation member 41 and the lower isolation member 42 can be formed by bending stainless steel. The thickness of the stainless steel can be 1 mm to 2 mm, which reduces the manufacturing cost and weight of the upper isolation member 41 and the lower isolation member 42 while ensuring the structural strength of the two. In addition, the upper isolation member 41 and the lower isolation member 42 made of stainless steel can have good corrosion resistance and high temperature resistance. The upper isolation member 41, which is formed by bending sheet metal, can be used to cover the second air inlet 22 of the fan assembly 2, while the lower isolation member 42, which is formed by bending sheet metal, can be used to cover the second air inlet 32 ​​of the smoke hood 3, thereby forming an independent and sealed air inlet cavity 5 between the second air inlet 32 ​​and the second air inlet 22.

[0052] In the above embodiments, the upper isolation member 41 and / or the lower isolation member 42 can be formed by bending metal materials, which effectively simplifies the manufacturing process of the air duct isolation assembly 4 and reduces the manufacturing cost and difficulty of the air duct isolation assembly 4.

[0053] In some embodiments, such as Figures 10 to 12 As shown, the upper isolator 41 has a first connecting end 411 at the end facing the lower isolator 42, and the lower isolator 42 has a second connecting end 421 at the end facing the upper isolator 41. When the upper isolator 41 and the lower isolator 42 are connected, the first connecting end 411 and the second connecting end 421 form a surface contact.

[0054] The end of the upper isolator 41 facing the lower isolator 42 can be bent toward the air inlet cavity 5 to form a first connecting end 411, and the end of the lower isolator 42 facing the upper isolator 41 can be bent toward the air inlet cavity 5 to form a second connecting end 421.

[0055] In the above embodiments, the surface contact formed between the first connecting end 411 and the second connecting end 421 can not only effectively improve the stability of the connection between the upper isolation member 41 and the lower isolation member 42, but also make the upper isolation member 41 and the lower isolation member 42 have a larger contact area, effectively improving the sealing performance between the upper isolation member 41 and the lower isolation member 42.

[0056] In some embodiments, such as Figures 9 to 11 As shown, the upper isolation member 41 and the lower isolation member 42 cooperate with the inner side wall of the chassis 1 to form the air inlet cavity 5.

[0057] In the above embodiment, the upper isolation member 41 and the lower isolation member can be respectively covered on the inner side wall of the chassis 1 to form an air inlet cavity 5 for the flow of oil fumes. In this way, while ensuring that the oil fumes can flow into the fan assembly 2 through the air inlet cavity 5, the structure of the air inlet assembly is greatly simplified, and the manufacturing difficulty and manufacturing cost of the air duct isolation component 4 are reduced.

[0058] In some embodiments, such as Figure 3 and Figure 4 As shown, the upper isolation member 41 and the lower isolation member 42 enclose and form the air inlet cavity 5.

[0059] In the above embodiment, the upper isolation member 41 and the lower isolation member 42 can be used as independent assembly units. The air inlet cavity 5 can be formed by using only the upper isolation member 41 and the lower isolation member 42, without the cooperation of other components inside the range hood. On the one hand, it can significantly reduce the number of connection interfaces with the casing 1, avoiding problems such as gaps and poor sealing that are easy to occur when splicing multiple parts, and effectively improving the sealing performance of the air duct isolation assembly 4. On the other hand, since the air inlet cavity 5 is completely enclosed by the upper and lower isolation members 42 independently, when the oil fumes flow in the air inlet cavity 5, they only come into contact with the inner walls of the upper isolation member 41 and the lower isolation member 42, and will not condense on the inner side wall of the casing 1. This reduces the cleaning dead corners inside the casing 1, reduces the cleaning difficulty during subsequent maintenance, and avoids the situation where oil stains accumulate for a long time and produce odors, thus extending the service life of the range hood and ensuring that the range hood operates more hygienically and stably.

[0060] In some embodiments, the air duct isolation assembly 4 further includes a seal (not shown) disposed at the connection between the upper isolation member 41 and the lower isolation member 42.

[0061] The aforementioned sealing element can be a colloid or rubber, etc. Taking rubber as an example, the shape of the sealing element made of rubber can be a long strip. The long strip sealing element can seal the connection gap between the upper isolation element 41 and the lower isolation element 42.

[0062] In the above embodiments, the sealing between the upper isolation member 41 and the lower isolation member 42 can be significantly improved by the sealing member provided at the connection between the upper isolation member 41 and the lower isolation member 42, effectively preventing the overflow of oil fumes.

[0063] In some embodiments, such as Figures 2 to 4 , Figure 6 , Figures 10 to 12 As shown, the air duct isolation assembly 4 also includes a first fastener (not shown in the figure) and a second fastener (not shown in the figure). The edge of the upper isolation member 41 has a first fixing part 412, and the edge of the lower isolation member 42 has a second fixing part 422. The first fastener passes through the first fixing part 412 and the fan assembly 2, and the second fastener passes through the second fixing part 422 and the chassis 1.

[0064] The first and second fasteners mentioned above can specifically be screws or bolts, etc.

[0065] The edge of the upper isolator 41 can be bent away from the air inlet cavity 5 to form the first fixing part 412. Similarly, the edge of the lower isolator 42 can be bent away from the air inlet cavity 5 to form the second fixing part 422. Threaded holes adapted to screws or bolts can be formed on the first fixing part 412 and the second fixing part 422, respectively.

[0066] The fan assembly 2 may specifically include a volute and a fan body disposed within the volute. A first fastener may pass through the first fixing part 412 and the volute of the fan assembly 2, and a second fastener may pass through the second fixing part 422 and the housing 1, thereby forming a stable and secure connection between the fan assembly 2, the duct isolation assembly 4, and the housing 1. Of course, it is understood that the number of the first and second fasteners can be arbitrary, such as one, two, or three, and those skilled in the art can make a reasonable selection based on actual use.

[0067] In the above embodiments, the first fastener and the second fastener can stably connect the duct isolation component 4, the fan component 2 and the casing 1. This not only ensures the firmness of the connection between the various components inside the range hood, but also reduces the vibration generated by the duct isolation component 4 when the fumes flow through it, effectively improving the robustness and reliability of the range hood.

[0068] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0069] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0070] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0071] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0072] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A range hood, characterized in that, include: A chassis, wherein a fan assembly is provided inside the chassis, and the fan assembly has a first air inlet and a second air inlet; A smoke hood is connected to the chassis, and the smoke hood is provided with a first air inlet and a second air inlet; The air duct isolation assembly, at least a portion of which is disposed within the chassis, forms an air intake chamber that communicates only with the second air inlet and the second air intake port.

2. The range hood according to claim 1, characterized in that, The axis of the fan assembly is parallel to the horizontal line, the first air inlet is provided on the rear side wall of the chassis, and the second air inlet is provided on the front side wall of the chassis.

3. The range hood according to claim 1, characterized in that, When the longitudinal section of the smoke hood is either a figure-eight shape or a triangle, the second air inlet is located at the upper part of the smoke hood, and the first air inlet is located at the lower part of the smoke hood; or, when the longitudinal section of the smoke hood is a straight line, the first air inlet and the second air inlet are spaced apart on the smoke hood, or the second air inlet is arranged around the outside of the first air inlet.

4. The range hood according to claim 1, characterized in that, The air duct isolation assembly includes an upper isolation component and a lower isolation component arranged vertically and connected to each other, and the cross-section of the lower isolation component gradually decreases from bottom to top.

5. The range hood according to claim 4, characterized in that, The upper spacer is integrally formed by bending metal material; and / or, the lower spacer is integrally formed by bending metal material.

6. The range hood according to claim 5, characterized in that, The upper isolator has a first connecting end at one end facing the lower isolator, and the lower isolator has a second connecting end at one end facing the upper isolator. When the upper isolator and the lower isolator are connected, the first connecting end and the second connecting end form a surface contact.

7. The range hood according to claim 4, characterized in that, The upper and lower isolation components cooperate with the inner sidewall of the chassis to form the air inlet cavity.

8. The range hood according to claim 4, characterized in that, The upper and lower isolation components together form the air inlet cavity.

9. The range hood according to claim 4, characterized in that, The air duct isolation assembly also includes a seal, which is disposed at the connection between the upper isolation member and the lower isolation member.

10. The range hood according to claim 4, characterized in that, The air duct isolation assembly further includes a first fastener and a second fastener. The edge of the upper isolation member has a first fixing part, and the edge of the lower isolation member has a second fixing part. The first fastener passes through the first fixing part and the fan assembly, and the second fastener passes through the second fixing part and the chassis.

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