Range hood

Abstract

This utility model provides a range hood, relating to the field of range hood technology. The range hood features a guide plate at the auxiliary air inlet on the panel. The guide plate has a guiding cavity facing the main air inlet and connecting the smoke collection chamber and the auxiliary air inlet. The guide plate can change the direction of airflow, guiding the fumes entering from the auxiliary air inlet through the guiding cavity to the smoke collection chamber, thereby ensuring that the auxiliary air inlet can draw in fumes and preventing their diffusion. Simultaneously, the guide plate can also guide condensed oil droplets, preventing them from dripping directly.

Description

Technical Field

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

[0002] The range hoods in related technologies generally include a connected smoke collection hood and a casing. The casing usually contains a fan assembly. When the fan assembly is activated, a negative pressure is created inside the casing and the smoke collection hood, which draws harmful gases such as oil fumes from the kitchen into the air box and exhausts them to the outside through the exhaust pipe, thereby ensuring a smoke-free environment in the kitchen.

[0003] To ensure effective fume extraction, existing range hoods typically have a main air inlet and an auxiliary air inlet on the fume collection hood. When the range hood is working, most of the fumes are drawn into the fan assembly through the main air inlet. The negative pressure provided by the fan assembly to the auxiliary air inlet is relatively low, which reduces the suction power of the auxiliary air inlet for fumes. This severely affects the absorption of diffused fumes by the auxiliary air inlet, significantly reducing its effectiveness. Utility Model Content

[0004] The purpose of this utility model is to provide a range hood that can guide the oil fumes entering through the auxiliary air inlet to the smoke collection chamber through the guide cavity, and can also guide oil droplets.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a range hood, comprising:

[0007] A smoke collection hood, wherein the smoke collection hood has a smoke collection chamber inside, the smoke collection hood includes a panel, the panel has a main air inlet and an auxiliary air inlet, the main air inlet and the auxiliary air inlet are used to connect the smoke collection chamber and the outside;

[0008] A guide plate is disposed at the auxiliary air inlet of the panel and located inside the smoke collection chamber. The guide plate has a guide cavity communicating with the smoke collection chamber. The guide cavity faces the main air inlet and connects the smoke collection chamber and the auxiliary air inlet.

[0009] In an optional embodiment, the guide plate includes a body, a first plate and a third plate, and the auxiliary air inlet includes a first side, a second side, a third side and a fourth side connected to each other. The first plate is located on one side of the first side of the auxiliary air inlet, the body is located on one side of the second side of the auxiliary air inlet, and the third plate is located on one side of the third side of the auxiliary air inlet.

[0010] The main body is connected to the first plate and the third plate respectively to form the flow guiding cavity.

[0011] In an optional embodiment, the body includes a second plate and a fourth plate connected to each other, the fourth plate being located on top of the second plate and on top of the auxiliary air inlet, the second plate and the fourth plate being arranged at an angle.

[0012] In an optional embodiment, the panel has a second flange along the edge of the auxiliary air inlet toward the smoke collection chamber;

[0013] A gap is provided between the second flange and the body, and a through hole is provided near the body.

[0014] In an optional embodiment, the bottom of the body is provided with a fixed flange, which is fixed to the panel.

[0015] In an optional embodiment, the main air inlet is located near the front side of the smoke hood, and the auxiliary air inlet is located near the rear side of the smoke hood.

[0016] The smoke collection hood also includes an oil cup disposed on the rear side of the panel. The panel is inclined relative to the horizontal plane and has an oil guide hole that communicates with the oil cup.

[0017] In an optional embodiment, the top of the panel is provided with a flow guide groove that is recessed toward the bottom of the panel, and the oil guide hole is located within the flow guide groove.

[0018] In an optional embodiment, the panel has an oil-guiding flange along the edge of the oil guide hole toward the oil cup.

[0019] In an optional embodiment, the main air inlet is located near the front side of the smoke hood, the auxiliary air inlet is located near the rear side of the smoke hood, and the air inlet area of ​​the main air inlet is larger than the air inlet area of ​​the auxiliary air inlet.

[0020] The front side of the smoke hood is provided with a rotatable smoke baffle, which is used to open or close the main air inlet.

[0021] In an optional embodiment, the main air inlet includes multiple main air inlets, which are arranged along the front-to-back direction and spaced apart along the left-to-right direction; the auxiliary air inlet includes one main air inlet, which is arranged along the left-to-right direction.

[0022] So that the air intake area of ​​the main air intake is larger than that of the auxiliary air intake.

[0023] The beneficial effects of the range hood provided in this embodiment of the utility model include:

[0024] By setting the guide plate at the auxiliary air inlet of the panel, the guide plate has a guide cavity facing the main air inlet and connecting the smoke collection chamber and the auxiliary air inlet; the guide plate can change the direction of airflow, guiding the oil fumes entering from the auxiliary air inlet through the guide cavity to the smoke collection chamber, thereby ensuring that the auxiliary air inlet can draw in oil fumes and avoid the spread of oil fumes; at the same time, the guide plate can also guide the oil droplets condensed by the oil fumes and prevent the oil droplets from dripping directly. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the range hood provided in this embodiment;

[0027] Figure 2 This is a structural schematic diagram of the panel and guide plate from a first-view perspective provided in this embodiment;

[0028] Figure 3 This is a structural schematic diagram of the panel and guide plate from a second perspective provided in this embodiment;

[0029] Figure 4 This is a partial cross-sectional view of the panel and the deflector provided in this embodiment.

[0030] Icons: 010-Range hood; 100-House casing; 200-Smoke hood; 201-Main air inlet; 202-Auxiliary air inlet; 210-Panel; 211-First flange; 212-Second flange; 213-Oil guide hole; 214-Flow guide groove; 215-Oil guide flange; 220-Top casing; 230-Oil cup; 300-Smoke baffle; 400-Flow guide plate; 401-Flow guide cavity; 410-Body body; 411-Second plate; 412-Fourth plate; 413-Through hole; 414-Fixed flange; 420-First plate; 430-Third plate; 440-Gap. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] The following describes in detail the overall structure, working principle, and technical effects of the range hood 010 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0038] Please refer to Figure 1 The range hood 010 provided by this utility model is applied to top-mounted range hoods 010 and side-mounted range hoods 010.

[0039] This utility model provides a range hood 010, comprising:

[0040] The smoke hood 200 has a smoke collection chamber inside. The smoke hood 200 includes a panel 210. The panel 210 is provided with a main air inlet 201 and an auxiliary air inlet 202. The main air inlet 201 and the auxiliary air inlet 202 are used to connect the smoke collection chamber and the outside.

[0041] A guide plate 400 is provided at the auxiliary air inlet 202 of the panel 210 and located in the smoke collection chamber. The guide plate 400 is provided with a guide cavity 401 that communicates with the smoke collection chamber. The guide cavity 401 faces the main air inlet 201 and connects the smoke collection chamber and the auxiliary air inlet 202.

[0042] Understandably, the fan assembly creates a negative pressure zone within the smoke collection chamber of the smoke hood 200, allowing outside air to carry oil fumes and be drawn into the smoke collection chamber through the main air inlet 201 and the auxiliary air inlet 202 due to the pressure difference. Since the negative pressure zone is not uniformly distributed, the closer to the fan inlet, the greater the negative pressure and the stronger the suction. Because the main air inlet 201 is usually directly opposite or very close to the fan inlet, it receives the strongest suction. However, the negative pressure provided by the fan assembly to the auxiliary air inlet 202 is relatively small, which reduces the suction of the auxiliary air inlet 202 for oil fumes, severely affecting its ability to absorb diffused oil fumes and significantly reducing its effectiveness.

[0043] Therefore, this application provides a guide plate 400 at the auxiliary air inlet 202 of the panel 210. The guide plate 400 has a guide cavity 401 facing the main air inlet 201. The guide cavity 401 connects the smoke collection chamber and the auxiliary air inlet 202. The guide plate 400 can change the direction of airflow, guiding the oil fumes entering from the auxiliary air inlet 202 to the smoke collection chamber through the guide cavity 401, thereby ensuring that the auxiliary air inlet 202 can draw in oil fumes and prevent the oil fumes from spreading. At the same time, the guide plate 400 can also guide the oil droplets condensed by the oil fumes and prevent the oil droplets from dripping directly.

[0044] In this embodiment, the range hood 010 includes a housing 100.

[0045] Please refer to Figure 1 The housing 100 is located on top of the smoke collection hood 200 and is connected to the smoke collection chamber. The housing 100 contains a fan assembly for absorbing oil fumes.

[0046] In this embodiment, the range hood 010 includes a smoke collection hood 200.

[0047] In this embodiment, please refer to Figure 1 The smoke hood 200 includes a panel 210 and a top housing 220. The panel 210 is disposed at the bottom of the top housing 220, and the panel 210 and the top housing 220 form a smoke collection chamber (not shown in the figure); please refer to Figure 2 The main air inlet 201 and the auxiliary air inlet 202 are provided on the panel 210.

[0048] In this embodiment, please refer to Figure 1The main air inlet 201 is located near the front of the smoke hood 200, and the auxiliary air inlet 202 is located near the rear of the smoke hood 200. The air intake area of ​​the main air inlet 201 is larger than that of the auxiliary air inlet 202.

[0049] In this embodiment, please refer to Figures 1-3 The main air inlet 201 includes multiple main air inlets 201, which are arranged along the front-to-back direction and spaced apart along the left-to-right direction; the auxiliary air inlet 202 includes one main air inlet 201, which is arranged along the left-to-right direction; so that the air intake area of ​​the main air inlet 201 is larger than the air intake area of ​​the auxiliary air inlet 202.

[0050] In this embodiment, please refer to Figure 3 The panel 210 has a first flange 211 along the edge of the main air inlet 201 facing the smoke collection chamber, please refer to... Figure 4 The panel 210 has a second flange 212 along the edge of the auxiliary air inlet 202 toward the smoke collection chamber.

[0051] Understandably, the inhaled fumes will condense into oil droplets in the fume collection chamber, and these droplets will gather at the top of the panel 210. By setting a first flange 211 at the main air inlet 201 and a second flange 212 at the auxiliary air inlet 202, the first flange 211 and the second flange 212 can block the oil droplets, preventing the oil droplets gathered at the top of the panel 210 from flowing out from the main air inlet 201 or the auxiliary air inlet 202.

[0052] In this embodiment, please refer to Figure 1 The smoke hood 200 also includes an oil cup 230 disposed on the rear side of the panel 210; the panel 210 is inclined relative to the horizontal plane; please refer to Figures 3-4 The panel 210 is provided with an oil guide hole 213, which is connected to the oil cup 230.

[0053] The oil guide hole 213 is positioned relative to the auxiliary air inlet 202, near the rear side of the panel 210.

[0054] Understandably, the panel 210 is inclined along the horizontal plane, which can better guide the oil droplets gathered at the top of the panel 210 into the oil cup 230.

[0055] In this embodiment, the top of the panel 210 is provided with a flow guide groove 214 that is recessed toward the bottom of the panel 210, and the oil guide hole 213 is located in the flow guide groove 214.

[0056] Understandably, please refer to Figures 1-4 The oil collected on the guide panel 210 can enter the guide groove 214 under the guidance of the guide groove 214, and enter the oil cup 230 through the oil guide hole 213.

[0057] In this embodiment, please refer to Figure 4 The panel 210 has an oil guide flange 215 along the edge of the oil guide hole 213 toward the oil cup 230.

[0058] Understandably, the oil guide flange 215 is positioned towards the oil cup 230, which can prevent the oil at the oil guide hole 213 from leaking laterally along the bottom surface of the panel 210.

[0059] In this embodiment, please refer to Figure 1 The smoke hood 200 also includes a smoke baffle 300. The smoke baffle 300 is rotatably mounted on the front side of the smoke hood 200 and is used to open or close the main air inlet 201. The smoke baffle 300 is located at the bottom of the panel 210 and is rotatably mounted relative to the panel 210.

[0060] Understandably, when the user is cooking, opening the baffle 300 on the front of the fume hood 200 allows most of the cooking fumes to enter the fume collection chamber through the main air inlet 201, blocked by the baffle 300. The remaining fumes enter the fume collection chamber through the auxiliary air inlet 202 located at the rear. This ensures that the range hood 010 has a good fume extraction effect. After cooking, closing the baffle 300 and blocking the main air inlet 201 prevents the fumes in the fume collection chamber from escaping.

[0061] Meanwhile, when users are steaming or boiling, which produces a small amount of oil fumes, they do not need to open the smoke baffle 300; the fan assembly starts, and the oil fumes generated during steaming or boiling can enter the smoke collection chamber through the auxiliary air inlet 202; this not only makes it convenient for users and saves energy, but also absorbs the oil fumes or odors generated during steaming or boiling.

[0062] In this embodiment, the range hood 010 also includes a baffle plate 400.

[0063] The baffle plate 400 is used to guide the oil fumes from the auxiliary air inlet 202.

[0064] In this embodiment, please refer to Figure 1 and Figure 4 The guide plate 400 is located at the auxiliary air inlet 202 of the panel 210 and inside the smoke collection chamber. The guide plate 400 has a guide cavity 401 that communicates with the smoke collection chamber. The guide cavity 401 faces the main air inlet 201 and connects the smoke collection chamber and the auxiliary air inlet 202.

[0065] In this embodiment, please refer to Figures 2-4The guide plate 400 includes a body 410, a first plate 420 and a third plate 430. The auxiliary air inlet 202 includes a first side, a second side, a third side and a fourth side connected to each other. The first plate 420 is located on one side of the first side of the auxiliary air inlet 202, the body 410 is located on one side of the second side of the auxiliary air inlet 202, and the third plate 430 is located on one side of the third side of the auxiliary air inlet 202. The body 410 is connected to the first plate 420 and the third plate 430 respectively to form a guide cavity 401.

[0066] In this embodiment, please refer to Figure 4 The main body 410 includes a second plate 411 and a fourth plate 412 connected to each other. The fourth plate 412 is located on top of the second plate 411 and on top of the auxiliary air inlet 202. The second plate 411 and the fourth plate 412 are arranged at an angle.

[0067] The second plate 411 and the fourth plate 412 are set at an obtuse angle.

[0068] It is understandable that when the fumes enter the guide cavity 401 from the auxiliary air inlet 202, the fumes will enter the smoke collection cavity under the guidance of the first plate 420, the second plate 411, the third plate 430 and the fourth plate 412.

[0069] Furthermore, the inhaled fumes will condense into oil droplets in the fume collection chamber. When the oil droplets on the inner wall of the fume collection hood 200 fall onto the fourth plate 412 of the guide plate 400, the fourth plate 412 guides the oil droplets to the second plate 411, so that the oil droplets can be guided to the top of the panel 210 and then enter the oil cup 230 through the oil guide hole 213.

[0070] Furthermore, the inhaled fumes will condense into oil droplets in the guide cavity 401. When oil droplets condense on the inner wall of the guide plate 400, the oil droplets will be guided by the fourth plate 412 to the second plate 411 so that the oil droplets can be guided to the top of the panel 210 and then enter the oil cup 230 through the oil guide hole 213.

[0071] In an alternative embodiment, the body 410 may also be a plate structure with an arc shape.

[0072] In this embodiment, please refer to Figure 4 A gap 440 is provided between the second flange 212 and the second plate 411 of the main body 410, and a through hole 413 is provided near the main body 410.

[0073] The number of through holes 413 can be selectively set according to the length of the body 410, such as three, four, five, etc.

[0074] It is understandable that the inhaled fumes will condense into oil droplets in the guide cavity 401. When oil droplets condense on the inner wall of the guide plate 400, the oil droplets will be guided by the fourth plate 412 to the second plate 411, so that the oil droplets can be guided to the top of the panel 210 and located in the gap 440. The oil droplets in the gap 440 can flow through the through hole 413 to the guide oil hole 213 and enter the oil cup 230 through the guide oil hole 213.

[0075] In this embodiment, please refer to Figures 2-4 The bottom of the second plate 411 of the main body 410 is provided with a fixed flange 414, which is fixed to the panel 210.

[0076] Optionally, the fixing flange 414 is provided with threaded holes, and the fixing flange 414 can be fixed to the panel 210 by means of threaded parts. Of course, the fixing flange 414 can also be fixed to the panel 210 by welding or other methods.

[0077] The working principle and process of the range hood 010 provided in this embodiment of the utility model are as follows: When the fan assembly is working, the oil fumes enter the guide cavity 401 from the auxiliary air inlet 202. The oil fumes will enter the smoke collection cavity under the guidance of the first plate 420, the second plate 411, the third plate 430 and the fourth plate 412.

[0078] Furthermore, when the oil droplets formed by condensation in the smoke collection chamber fall onto the fourth plate 412 of the guide plate 400, the fourth plate 412 guides the oil droplets to the second plate 411, so that the oil droplets can be guided to the top of the panel 210 and then enter the oil cup 230 through the oil guide hole 213.

[0079] Furthermore, the oil droplets formed by condensation in the guide cavity 401 of the guide plate 400 will be guided by the fourth plate 412 to the second plate 411, so that the oil droplets can be guided into the gap 440 of the panel 210 and enter the oil cup 230 through the through hole 413 and the oil guide hole 213.

[0080] In summary, the range hood 010 provided in this embodiment of the present invention, by setting a guide plate 400 at the auxiliary air inlet 202 of the panel 210, the guide plate 400 is provided with a guide cavity 401 facing the main air inlet 201, and the guide cavity 401 connects the smoke collection chamber and the auxiliary air inlet 202; the guide plate 400 can change the direction of airflow, guiding the oil fumes entering from the auxiliary air inlet 202 through the guide cavity 401 to the smoke collection chamber, thereby ensuring that the auxiliary air inlet 202 can draw in oil fumes and avoid the diffusion of oil fumes; at the same time, the guide plate 400 can also guide the oil droplets condensed by the oil fumes and prevent the oil droplets from dripping directly.

[0081] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A range hood, characterized in that, include: A smoke collection hood, wherein the smoke collection hood has a smoke collection chamber inside, the smoke collection hood includes a panel, the panel has a main air inlet and an auxiliary air inlet, the main air inlet and the auxiliary air inlet are used to connect the smoke collection chamber and the outside; A guide plate is disposed at the auxiliary air inlet of the panel and located inside the smoke collection chamber. The guide plate has a guide cavity communicating with the smoke collection chamber. The guide cavity faces the main air inlet and connects the smoke collection chamber and the auxiliary air inlet.

2. The range hood according to claim 1, characterized in that, The guide plate includes a body, a first plate and a third plate. The auxiliary air inlet includes a first side, a second side, a third side and a fourth side connected to each other. The first plate is located on one side of the first side of the auxiliary air inlet. The body is located on one side of the second side of the auxiliary air inlet. The third plate is located on one side of the third side of the auxiliary air inlet. The main body is connected to the first plate and the third plate respectively to form the flow guiding cavity.

3. The range hood according to claim 2, characterized in that, The main body includes a second plate and a fourth plate connected to each other. The fourth plate is located on top of the second plate and on top of the auxiliary air inlet. The second plate and the fourth plate are arranged at an angle.

4. The range hood according to claim 2, characterized in that, The panel has a second flange along the edge of the auxiliary air inlet toward the smoke collection chamber; A gap is provided between the second flange and the body, and a through hole is provided near the body.

5. The range hood according to claim 2, characterized in that, The bottom of the main body is provided with a fixed flange, which is fixed to the panel.

6. The range hood according to claim 1, characterized in that, The main air inlet is located near the front of the smoke hood, and the auxiliary air inlet is located near the rear of the smoke hood. The smoke collection hood also includes an oil cup disposed on the rear side of the panel. The panel is inclined relative to the horizontal plane and has an oil guide hole that communicates with the oil cup.

7. The range hood according to claim 6, characterized in that, The top of the panel is provided with a flow guide groove that is recessed toward the bottom of the panel, and the oil guide hole is located in the flow guide groove.

8. The range hood according to claim 6, characterized in that, The panel has an oil-guiding flange along the edge of the oil guide hole toward the oil cup.

9. The range hood according to claim 1, characterized in that, The main air inlet is located near the front side of the smoke hood, and the auxiliary air inlet is located near the rear side of the smoke hood. The air intake area of ​​the main air inlet is larger than that of the auxiliary air inlet. The front side of the smoke hood is provided with a rotatable smoke baffle, which is used to open or close the main air inlet.

10. The range hood according to claim 9, characterized in that, The main air inlet includes multiple inlets, which are arranged along the front-to-back direction and spaced apart along the left-to-right direction; the auxiliary air inlet includes one inlet, which is arranged along the left-to-right direction of the main air inlet. So that the air intake area of ​​the main air intake is larger than that of the auxiliary air intake.

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