Smoke guide device and extractor hood

Abstract

The utility model relates to kitchen appliance technical field discloses a smoke guide device and range hood, smoke guide device includes smoke guide board and shunt component. Smoke guide board is located in the smoke inlet of range hood smoke collecting chamber, shunt component is located in the side of smoke guide board towards smoke collecting chamber, and is located in the edge area of smoke guide board, the side of shunt component towards smoke collecting chamber is equipped with wave crest structure and / or wave trough structure, the area of wave trough structure is located in the cooking area on the orthographic projection of stove, and shunt component forms the strengthened negative pressure area between wave trough structure and smoke collecting chamber. The interval between shunt component and smoke collecting chamber is non-equal interval, and the space is bigger at wave trough structure, can form the strengthened negative pressure area between shunt component and smoke collecting chamber. Through wave crest structure and wave trough structure on shunt component can more distribute the negative pressure to the just above cooking area, make the oil fume produced in cooking be effectively sucked into smoke collecting chamber, prevent the oil fume from escaping, improve the smoke exhaust effect of range hood.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke guiding device and a range hood. Background Technology

[0002] Range hoods are an indispensable piece of equipment in the kitchen. Their main function is to capture fumes, particulate matter, and harmful gases produced during cooking to ensure indoor air quality and the health of users.

[0003] Most existing range hoods, in order to improve smoke extraction, typically add a diffuser plate (or guide plate) to the smoke intake area of ​​the smoke collection hood. However, the air intake distance between the diffuser plate and the smoke collection hood is usually designed to be equal, and the negative pressure distribution is also uniform. However, during cooking, the distribution of cooking fumes is not uniform; typically, the central area above the cooking pot contains more fumes, while other areas contain relatively less. Therefore, the negative pressure zone designed in existing diffuser plates cannot adapt to the actual distribution of cooking fumes, affecting the efficiency of fume capture and limiting the improvement in smoke extraction performance.

[0004] Therefore, there is an urgent need for a smoke guiding device and a range hood to solve the above problems. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a smoke guiding device and a range hood that can distribute negative pressure zones according to the distribution of cooking fumes, effectively absorb fumes, and improve the smoke extraction effect of the range hood.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, a smoke guiding device is provided, comprising:

[0008] A smoke guide plate is installed at the smoke inlet of the smoke collection chamber of the range hood;

[0009] The diversion component is located on the side of the smoke guide plate facing the smoke collection chamber and is situated in the edge area of ​​the smoke guide plate;

[0010] The diversion component has a crest structure and / or trough structure on the side facing the smoke collection chamber. The orthographic projection of the area where the trough structure is located is located in the cooking area on the stove. The diversion component forms a reinforced negative pressure zone between the trough structure and the smoke collection chamber.

[0011] As an optional solution for the smoke guiding device of this utility model, the diversion component includes a first diversion element, which is located in the front smoke inlet area of ​​the smoke collection chamber. The middle area of ​​the first diversion element is provided with a wave crest structure, and both sides of the wave crest structure are provided with wave trough structures.

[0012] And / or, the diversion component includes a second diversion element, which is located in the side smoke inlet area of ​​the smoke collection chamber, and the second diversion element is provided with a trough structure.

[0013] As an optional solution for the smoke guiding device of this utility model, an oil cup is provided below the smoke collecting chamber, and the smoke guiding plate has a first end and a second end arranged in the front-back direction of the smoke collecting chamber. The second end is located above the oil cup, and the height of the second end is lower than the height of the first end.

[0014] As an optional solution for the smoke guiding device of this utility model, the diversion component has an oil guiding groove recessed on the side facing the smoke guiding plate, and an oil guiding channel is formed between the oil guiding groove and the smoke guiding plate.

[0015] As an optional solution for the smoke guiding device of this utility model, the second end of the smoke guiding plate is provided with an oil guiding flange, which is inclined toward the oil cup.

[0016] As an optional solution for the smoke guiding device of this utility model, the inclination angle of the oil guiding flange is α, where 0°<α≤45°;

[0017] And / or, the end of the oil guide flange away from the smoke guide plate is provided with a first reinforcing edge that folds inward toward the smoke guide plate.

[0018] As an optional solution for the smoke guiding device of this utility model, the smoke guiding device also includes a fixed bracket, which is disposed on the smoke guiding plate, and the diversion component is connected to the fixed bracket.

[0019] As an optional solution for the smoke guiding device of this utility model, the vertical distance between the lowest point of the trough structure and the inner top surface of the smoke collection chamber is d, where 5mm≤d≤10mm.

[0020] As an optional solution for the smoke guiding device of this utility model, an air inlet is provided on the smoke guiding plate, and the air inlet is connected to the smoke collection chamber;

[0021] And / or, the outer edge of the smoke guide plate is surrounded by a rim structure, which extends toward the smoke collection chamber.

[0022] On the other hand, a range hood is provided, including a housing assembly, a smoke collection hood, and the aforementioned smoke guiding device. The smoke collection hood is disposed on the housing assembly and defines a smoke collection chamber, and the smoke guiding device is disposed at the smoke inlet of the smoke collection chamber.

[0023] The beneficial effects of this utility model are as follows:

[0024] The smoke guiding device and range hood provided by this utility model, by setting a crest structure and / or a trough structure on the diversion component, makes the distance between the diversion component and the top surface of the smoke collection chamber different at the crest and trough structures. That is, the distance between the diversion component and the smoke collection chamber is not equal, wherein the distance between the crest structure and the smoke collection chamber is small, and the distance between the trough structure and the smoke collection chamber is large, thus forming a wave-shaped smoke intake area between the diversion component and the smoke collection chamber. During the operation of the range hood, because the space at the trough structure is larger, a stronger negative pressure can be formed there, that is, a reinforced negative pressure zone is formed between the trough structure and the smoke collection chamber. Furthermore, since the orthogonal projection of the area where the trough structure is located is within the cooking area of ​​the stove, the cooking fumes are more easily drawn into the smoke collection chamber under the negative pressure of the reinforced negative pressure zone. In other words, the wave crest and trough structures designed on the diversion component can distribute more negative pressure to the area directly above the cooking zone, so that the cooking fumes are effectively drawn into the fume collection chamber, preventing the fumes from escaping and improving the fume extraction effect of the range hood. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is a front view of the range hood provided in a specific embodiment of this utility model;

[0027] Figure 2 This is a side view of the range hood provided in a specific embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the smoke guiding device provided in a specific embodiment of this utility model;

[0029] Figure 4 This is an exploded view of the smoke guiding device provided in a specific embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the flow guiding structure provided in a specific embodiment of this utility model;

[0031] Figure 6 This is a front view of the flow guiding structure provided in a specific embodiment of this utility model;

[0032] Figure 7 This is a side view of the flow guiding structure provided in a specific embodiment of this utility model;

[0033] Figure 8 This is a cross-sectional schematic diagram of the smoke guide plate provided in a specific embodiment of this utility model;

[0034] Figure 9 yes Figure 8 A magnified view of a section at point A in the middle;

[0035] Figure 10 yes Figure 8 A magnified view of a section at point B in the middle.

[0036] In the picture:

[0037] 1. Smoke guide plate; 2. Diversion component; 3. Fixing bracket;

[0038] 11. First end; 12. Second end; 13. Air inlet; 14. Surrounding structure;

[0039] 121. Oil guide flange; 1211. First reinforcing edge; 1212. Oil drain port;

[0040] 131, Third reinforcing edge; 141, Second reinforcing edge;

[0041] 201. Crest structure; 202. Trough structure; 203. Enhanced negative pressure zone;

[0042] 21. First diversion component; 22. Second diversion component;

[0043] 210. Oil guide channel; 211. Oil guide groove; 212. Fixing hole;

[0044] 31. Fixing part; 32. First snap-fit ​​part; 33. Clearance opening;

[0045] 10. Smoke hood; 20. Oil cup; 30. Housing components;

[0046] 101. Smoke collection chamber;

[0047] 100. Cooking pot; 200. Cooking area. Detailed Implementation

[0048] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] like Figures 1 to 10 As shown, this embodiment provides a smoke guiding device that can distribute negative pressure zones according to the distribution of cooking fumes, effectively absorbing the fumes and improving the smoke extraction effect of the range hood. The smoke guiding device includes a smoke guiding plate 1 and a diversion component 2.

[0052] Among them, see Figure 1 and Figure 2 The smoke guide plate 1 is installed at the smoke inlet of the smoke collection chamber 101 of the range hood. (See reference...) Figure 3 , Figure 4 and Figure 5 The diversion component 2 is disposed on the side of the smoke guide plate 1 facing the smoke collection chamber 101, and is located in the edge area of ​​the smoke guide plate 1. The side of the diversion component 2 facing the smoke collection chamber 101 is provided with a crest structure 201 and / or a trough structure 202. The orthogonal projection of the area where the trough structure 202 is located is within the cooking area 200 on the stove. The diversion component 2 forms a reinforced negative pressure zone 203 between the trough structure 202 and the smoke collection chamber 101.

[0053] The smoke guiding device provided in this embodiment, by setting a crest structure 201 and / or a trough structure 202 on the diversion component 2, makes the distance between the diversion component 2 and the inner top surface of the smoke collection chamber 101 different at the crest structure 201 and the trough structure 202. That is, the distance between the diversion component 2 and the smoke collection chamber 101 is not equal, wherein the distance between the crest structure 201 and the smoke collection chamber 101 is small, and the distance between the trough structure 202 and the smoke collection chamber 101 is large, so that a wave-shaped smoke intake area is formed between the diversion component 2 and the smoke collection chamber 101. During the operation of the range hood, because the space at the trough structure 202 is larger, a stronger negative pressure can be formed at this location, that is, a reinforced negative pressure zone 203 is formed between the trough structure 202 and the smoke collection chamber 101.

[0054] Furthermore, since the orthogonal projection of the area where the trough structure 202 is located is within the cooking area 200 of the stove, the cooking fumes are more easily drawn into the smoke collection chamber 101 under the negative pressure of the enhanced negative pressure zone 203. In other words, the crest structure 201 and trough structure 202 designed on the diversion component 2 can distribute more negative pressure directly above the cooking area 200, effectively drawing the cooking fumes into the smoke collection chamber 101, preventing fumes from escaping, and improving the smoke extraction effect of the range hood.

[0055] See Figure 3 , Figure 5 and Figure 6 The diversion component 2 includes a first diversion element 21, which is located in the front smoke inlet area of ​​the smoke collection chamber 101. A wave crest structure 201 is provided in the middle area of ​​the first diversion element 21, and wave trough structures 202 are provided on both sides of the wave crest structure 201. After the smoke guide plate 1 is installed, as... Figure 1 As shown, the first diverter 21 forms a U-shaped smoke inlet area between its front and the inner top surface of the smoke collection chamber 101. This smoke inlet area has a wave-like mountain-like shape, with a reinforced negative pressure zone 203 formed at the concave part (i.e., at the trough structure 202) of the smoke inlet area. This zone corresponds to the path of high-volume oil fumes, allowing for more effective smoke extraction. Conversely, the convex part (i.e., at the crest structure 201) of the smoke inlet area corresponds to the path of low-volume oil fumes, achieving a reasonable distribution of negative pressure zones. This improves the smoke extraction effect of the range hood without increasing its energy consumption.

[0056] Combination Figure 1 and Figure 2 The area where the cooking pot 100 is located is the cooking area 200. The crest structure 201 is set in the middle area of ​​the first diverter 21, which can form a trough structure 202 on each side of the crest structure 201. The two trough structures 202 correspond to the two cooking areas 200 on the stove, and can form a reinforced negative pressure zone 203 directly above the two cooking areas 200 respectively, thereby improving the efficiency of oil fume extraction.

[0057] Of course, in other embodiments, if there are three or more cooking zones 200 on the stove, a crest structure 201 can be provided on the first diverter 21 for the area between each two adjacent cooking zones 200, so that the first diverter 21 has a trough structure 202 above each cooking zone 200, and has a reinforced negative pressure zone 203.

[0058] Optionally, when the diversion component 2 includes a first diversion element 21, the cross-sectional area of ​​the first diversion element 21 gradually decreases along the direction away from the smoke guide plate 1. That is, the cross-section of the first diversion element 21 is approximately inverted V-shaped, so that the surface of the first diversion element 21 is at least inclined on the front side, resulting in less resistance when the oil fumes enter the smoke collection chamber 101, which can further ensure the smoke exhaust efficiency.

[0059] See Figure 3 , Figure 5 and Figure 7 The diversion component 2 includes a second diversion element 22, which is located in the side smoke inlet area of ​​the smoke collection chamber 101. The second diversion element 22 has a trough structure 202. By providing the trough structure 202 on the second diversion element 22, a reinforced negative pressure zone 203 (such as...) can be formed on the side of the smoke guide plate 1. Figure 2 As shown in the figure, this allows cooking fumes to smoothly enter the fume collection chamber 101 from the side, further enhancing the range hood's smoke extraction capabilities.

[0060] like Figure 2 As shown, the second diverter 22 forms a U-shaped smoke inlet area between the side (left and right sides) and the inner top surface of the smoke collection chamber 101. A reinforced negative pressure zone 203 is formed in the recess of the smoke inlet area (i.e., at the trough structure 202). Corresponding to the oil fume path with a large amount of oil fume, it can fully absorb oil fume and prevent oil fume from escaping from the side of the range hood.

[0061] In some alternative embodiments, wave crest structures 201 and wave trough structures 202 distributed in a wave shape can also be provided on the second diverter 22, which can be adapted to actual needs.

[0062] Optionally, when the diversion component 2 includes a second diversion element 22, the cross-sectional area of ​​the second diversion element 22 gradually decreases along the direction away from the smoke guide plate 1. That is, the cross-section of the second diversion element 22 is approximately inverted V-shaped, making the surfaces of the second diversion element 22 inclined at least on the left and right sides, which is conducive to the smooth entry of oil fumes into the smoke collection chamber 101.

[0063] In this embodiment, the diversion component 2 includes a first diversion element 21 and two second diversion elements 22, the two second diversion elements 22 along... Figure 3The components are positioned on the left and right sides of the smoke guide plate 1, ensuring that both the fumes from the front and sides of the smoke collection chamber 101 are effectively drawn into the smoke collection chamber 101, thus improving the smoke extraction capacity of the range hood. For example, the first diverter 21 and the two second diverters 22 are integrally formed, eliminating the need for separate assembly later.

[0064] In other embodiments, the first diverter 21 may be provided only on the front side of the smoke guide plate 1; or, the second diverter 22 may be provided only on the side of the smoke guide plate 1. The first diverter 21 and the second diverter 22 may also be designed as separate structures, with the first diverter 21 and the second diverter 22 being installed separately on the smoke guide plate 1.

[0065] See Figure 3 and Figure 4 The smoke guiding device also includes a fixed bracket 3, which is disposed on the smoke guiding plate 1, and the diverting component 2 is connected to the fixed bracket 3. The fixed bracket 3 provides an installation base for the diverting component 2, facilitating its assembly. Optionally, the fixed bracket 3 is fixed to the smoke guiding plate 1 by welding or bonding, without damaging the outer surface of the smoke guiding plate 1, ensuring a neat appearance. The diverting component 2 is connected to the fixed bracket 3 by screws or other fasteners, facilitating its assembly and disassembly. Alternatively, the diverting component 2 can be snapped onto the fixed bracket 3 using a snap-fit ​​structure; or, the diverting component 2 can be bonded to the fixed bracket 3 with adhesive.

[0066] In this embodiment, the diversion component 2 is connected to the fixed bracket 3 by screws. Specifically, the fixed bracket 3 is a strip plate structure, and the strip plate is bent to form a protruding fixing part 31. The first diversion component 21 and the second diversion component 22 are both provided with fixing holes 212 corresponding to the fixing part 31. The fixing part 31 is provided with threaded holes. By passing the screw through the fixing hole 212 and screwing it into the corresponding threaded hole, the first diversion component 21 and the second diversion component 22 can be fixed.

[0067] Optionally, see Figure 4 The fixed bracket 3 is also provided with a first snap-fit ​​part 32, and the second diverter 22 of the diverter 2 is provided with a second snap-fit ​​part (not shown in the figure) that can snap-fit ​​with the first snap-fit ​​part 32. When assembling the diverter 2, the installation position of the diverter 2 can be initially fixed by snapping the first snap-fit ​​part 32 with the second snap-fit ​​part, which facilitates subsequent fastening operation with screws.

[0068] See Figure 1 and Figure 2 and combined Figure 6 and Figure 7The vertical distance d between the lowest point of the trough structure 202 and the inner top surface of the smoke collection chamber 101 is 5mm ≤ d ≤ 10mm. That is, the trough structure 202 is designed to maintain a sufficient distance from the smoke collection chamber 101 to ensure that the smoke intake area at the corresponding cooking area 200 is large enough, reducing smoke intake resistance. For example, d can take values ​​of 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., but is not limited to the values ​​and ranges listed above.

[0069] Alternatively, the value of d can be calculated using the following formula:

[0070] d(x) = a*Q(x) + b;

[0071] Where Q(x) represents the amount of oil fume; a is a proportionality coefficient, which can be calibrated experimentally, and the value of a ranges from 0.5 to 1.2; b is the reference spacing, used to prevent the structure from closing when the amount of oil fume is zero, and the value of b is recommended to be from 5mm to 10mm.

[0072] When the amount of oil fume Q(x) increases, the spacing d(x) needs to be increased accordingly to expand the cross-sectional area of ​​the smoke inlet area and reduce resistance, thereby improving the local smoke extraction efficiency.

[0073] See Figure 1 and Figure 2 An oil cup 20 is disposed below the smoke collection chamber 101. The smoke guide plate 1 has a first end 11 and a second end 12 disposed along the front-back direction of the smoke collection chamber 101. The second end 12 is located above the oil cup 20, and the height of the second end 12 is lower than the height of the first end 11. That is, the smoke guide plate 1 is inclined, and the lower end of the smoke guide plate 1 faces the oil cup 20, so that the oil on the smoke guide plate 1 can automatically flow into the oil cup 20 along the inclined direction of the smoke guide plate 1, preventing the oil from dripping into the cooking area 200.

[0074] Furthermore, the orthographic projection of the second end 12 of the smoke guide plate 1 lies within the orthographic projection of the oil cup 20, ensuring that all the oil on the smoke guide plate 1 can enter the oil cup 20. (Refer to...) Figure 2 In the orientation, the first end 11 of the smoke guide plate 1 is Figure 2 The right end of the smoke guide plate 1, the second end 12 is Figure 2 The left end of the middle.

[0075] See Figure 3 and Figure 4 The diversion component 2 has an oil guiding groove 211 recessed on the side facing the smoke guide plate 1, and an oil guiding channel 210 is formed between the oil guiding groove 211 and the smoke guide plate 1. The oil guiding channel 210 allows the oil outside the diversion component 2 to flow from the oil guiding channel 210 along the smoke guide plate 1 to the second end 12 of the smoke guide plate 1 and enter the oil cup 20, preventing the oil outside the diversion component 2 from accumulating and overflowing, and further preventing the oil from dripping into the cooking area 200.

[0076] In this embodiment, the first diverter 21 of the diverting component 2 is provided with the aforementioned oil guide groove 211 to prevent oil accumulation on the front side of the first diverter 21 from overflowing from the front side of the smoke guide plate 1, so that all the oil can flow into the oil cup 20. For example, two oil guide grooves 211 are provided at intervals on the first diverter 21, specifically one oil guide groove 211 is provided below each trough structure 202. The oil volume in this area is relatively large, which is more conducive to timely discharge of the formed oil.

[0077] See Figure 4 The fixed bracket 3 has an avoidance opening 33 at the position corresponding to the oil guide groove 211, so that after the diversion component 2 is connected to the fixed bracket 3, the opening of the oil guide groove 211 can fit against the smoke guide plate 1, and at the same time the oil guide groove 211 is connected to the avoidance opening 33 to prevent the fixed bracket 3 from blocking the flow of oil.

[0078] In other embodiments, the number of oil guide grooves 211 can be increased or decreased according to actual needs, and is not limited to the number and distribution methods listed above.

[0079] See Figure 2 The angle of inclination of the smoke guide plate 1 relative to the horizontal plane is β, where 3°≤β≤15°. This angle design allows the smoke guide plate 1 to have sufficient inclination to facilitate the smooth flow of all oil on the smoke guide plate 1 into the oil cup 20 (including the oil on the front and back of the smoke guide plate 1), preventing oil from dripping onto the stove surface of the cooking area 200.

[0080] For example, the smoke guide plate 1 can be designed to be tilted at 3°, 5°, 8°, 10°, 15°, etc., but is not limited to the specific angle values ​​listed above.

[0081] See Figure 3 , Figure 8 and Figure 9 The second end 12 of the smoke guide plate 1 is provided with an oil guiding flange 121, which is inclined toward the oil cup 20. The oil guiding flange 121 can play a guiding role, so that the oil on both sides of the smoke guide plate 1 can smoothly enter the oil cup 20 along the oil guiding flange 121, and prevent the oil from dripping into the cooking area 200 due to accumulation.

[0082] Optionally, see Figure 8 The inclination angle of the oil guide flange 121 relative to the plane of the smoke guide plate 1 is defined as α, where 0°<α≤45°. This angle design allows the oil guide flange 121 to maintain a certain inclination angle, which is beneficial for guiding the oil on the surface of the smoke guide plate 1 (especially the side of the smoke guide plate 1 facing away from the smoke collection chamber 101) into the oil cup 20.

[0083] For example, the tilt angle of the oil guide flange 121 can be 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, etc., but is not limited to the specific angle values ​​listed above.

[0084] See Figure 9 The oil-guiding flange 121 has a first reinforcing edge 1211 folded inward toward the smoke guide plate 1 at the end away from the smoke guide plate 1. The first reinforcing edge 1211 can enhance the strength of the oil-guiding flange 121 and prevent the oil-guiding flange 121 from deforming. In this embodiment, the first reinforcing edge 1211 is integrally bent inward on the oil-guiding flange 121, so that the end of the oil-guiding flange 121 has no sharp part and avoids scratching the user.

[0085] Optionally, see Figure 3 Both ends of the oil guide flange 121 are provided with oil drain ports 1212. The oil on the side of the smoke guide plate 1 facing the smoke collection chamber 101 can smoothly enter the oil cup 20 from the oil drain port 1212, avoiding the oil flow being blocked by the presence of the first reinforcing edge 1211 on the oil guide flange 121.

[0086] See Figure 3 and Figure 4 An air inlet 13 is provided on the smoke guide plate 1, and the air inlet 13 is connected to the smoke collection chamber 101. The air inlet 13 forms a smoke intake channel, which facilitates the direct intake of cooking fumes into the smoke collection chamber 101. That is, smoke can enter from the front and rear sides, left and right sides of the smoke guide plate 1, as well as the area where the air inlet 13 is located, improving smoke extraction efficiency. In this embodiment, the air inlet 13 is located in the central area of ​​the smoke guide plate 1, and the areas on both sides of the air inlet 13 correspond to the cooking area 200. A portion of the cooking fumes generated in the cooking area 200 can be drawn in through the central air inlet 13.

[0087] See Figure 3 , Figure 8 and Figure 10 The outer edge of the smoke guide plate 1 is surrounded by a rim structure 14, which extends toward the smoke collection chamber 101. The rim structure 14 can prevent oil from overflowing from the inside of the smoke guide plate 1 and prevent oil from dripping downwards. At the same time, the rim structure 14 can also enhance the strength of the smoke guide plate 1 and improve its resistance to deformation.

[0088] Optionally, the end of the edging structure 14 away from the smoke guide plate 1 is provided with a second reinforcing edge 141 that bends toward the inside of the smoke guide plate 1. The second reinforcing edge 141 can increase the strength of the edging structure 14, and at the same time make the edge of the edging structure 14 free of sharp parts, preventing scratches to users and improving the safety of the smoke guide plate 1.

[0089] Optionally, see Figure 3A third reinforcing edge 131 is provided at the air inlet 13. The third reinforcing edge 131 protrudes towards the inside of the smoke collection chamber 101, which can enhance the strength of the air inlet 13 and prevent the smoke guide plate 1 from cracking or being damaged at the air inlet 13.

[0090] This embodiment also provides a range hood, including a housing assembly 30, a smoke collection hood 10, and the aforementioned smoke guiding device. The smoke collection hood 10 is disposed in the housing assembly 30 and defines a smoke collection chamber 101. The smoke guiding device is disposed at the smoke inlet of the smoke collection chamber 101. A fan is disposed inside the housing assembly 30, and the air inlet of the fan is connected to the smoke collection chamber 101. When the fan is working, it creates a negative pressure in the smoke collection chamber 101, drawing in cooking fumes.

[0091] During the operation of the range hood, a reinforced negative pressure zone 203 is formed between the trough structure 202 of the diversion component 2 and the smoke collection chamber 101, making it easier for cooking fumes to be drawn into the smoke collection chamber 101 under the negative pressure of the reinforced negative pressure zone 203. The crest structure 201 and trough structure 202 on the diversion component 2 distribute more negative pressure directly above the cooking area 200, ensuring that cooking fumes are effectively drawn into the smoke collection chamber 101, preventing fumes from escaping and improving the range hood's smoke extraction efficiency.

[0092] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A smoke guiding device, characterized in that, include: A smoke guide plate (1) is installed at the smoke inlet of the smoke collection chamber (101) of the range hood; The diversion component (2) is disposed on the side of the smoke guide plate (1) facing the smoke collection chamber (101) and is located in the edge area of ​​the smoke guide plate (1); The diversion component (2) is provided with a crest structure (201) and / or a trough structure (202) on the side facing the smoke collection chamber (101). The orthographic projection of the area where the trough structure (202) is located is within the cooking area (200) on the stove. The diversion component (2) forms a reinforced negative pressure zone (203) between the trough structure (202) and the smoke collection chamber (101).

2. The smoke guiding device according to claim 1, characterized in that, The diversion component (2) includes a first diversion component (21), which is located in the front smoke inlet area of ​​the smoke collection chamber (101). The first diversion component (21) has a crest structure (201) in the middle area, and the crest structure (201) has a trough structure (202) on both sides. And / or, the diversion component (2) includes a second diversion element (22), which is located in the side smoke inlet area of ​​the smoke collection chamber (101), and the second diversion element (22) is provided with the trough structure (202).

3. The smoke guiding device according to claim 1, characterized in that, An oil cup (20) is provided below the smoke collection chamber (101). The smoke guide plate (1) has a first end (11) and a second end (12) arranged along the front and back direction of the smoke collection chamber (101). The second end (12) is located above the oil cup (20), and the height of the second end (12) is lower than the height of the first end (11).

4. The smoke guiding device according to claim 3, characterized in that, The diversion component (2) has an oil guide groove (211) recessed on the side facing the smoke guide plate (1), and an oil guide channel (210) is formed between the oil guide groove (211) and the smoke guide plate (1).

5. The smoke guiding device according to claim 3, characterized in that, The second end (12) of the smoke guide plate (1) is provided with an oil guide flange (121), which is inclined toward the oil cup (20).

6. The smoke guiding device according to claim 5, characterized in that, The inclination angle of the oil guide flange (121) is α, where 0°<α≤45°; And / or, the oil guide flange (121) is provided with a first reinforcing edge (1211) folded toward the inside of the smoke guide plate (1) at one end away from the smoke guide plate (1).

7. The smoke guiding device according to any one of claims 1-6, characterized in that, The smoke guiding device also includes a fixed bracket (3), which is disposed on the smoke guiding plate (1), and the diversion component (2) is connected to the fixed bracket (3).

8. The smoke guiding device according to any one of claims 1-6, characterized in that, The vertical distance between the lowest point of the trough structure (202) and the inner top surface of the smoke collection chamber (101) is d, where 5mm≤d≤10mm.

9. The smoke guiding device according to any one of claims 1-6, characterized in that, The smoke guide plate (1) is provided with an air inlet (13), and the air inlet (13) is connected to the smoke collection chamber (101); And / or, the outer edge of the smoke guide plate (1) is surrounded by a rim structure (14), which extends toward the smoke collection chamber (101).

10. A range hood, characterized in that, The device includes a housing assembly (30), a smoke hood (10), and a smoke guiding device as described in any one of claims 1-9, wherein the smoke hood (10) is disposed on the housing assembly (30) and defines the smoke collection chamber (101), and the smoke guiding device is disposed at the smoke inlet of the smoke collection chamber (101).

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