Range hood

Abstract

The utility model discloses a kind of range hood. Range hood includes: cabinet, fan assembly is equipped in cabinet;Flow guide cavity, flow guide cavity is connected with cabinet, flow guide cavity is equipped with the cavity of lower end opening;Smoke suction plate, smoke suction plate is located in cavity and is jointly enclosed with flow guide cavity to have flow guide cavity, smoke suction plate is opened with the smoke suction hole that is communicated with flow guide cavity, smoke suction plate is set to be inclined downward from the direction of rear side to front side of flow guide cavity;Wherein, the depth of flow guide cavity is less than or equal to set value, and set value is related to the depth of cabinet;The distance between the front end of the projection of smoke suction hole in horizontal direction and the rear side outer surface of flow guide cavity is L1, L1 is greater than or equal to 260mm. The above-mentioned range hood can reduce the risk of smoke running in front side of flow guide cavity to a certain extent under the condition that the depth of flow guide cavity is small.

Description

Technical Field

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

[0002] In related technologies, range hoods collect and expel cooking fumes from the kitchen. Their main working principle is to draw air out of the kitchen, causing the fumes to circulate and be collected, then expelled through the hood. For fully concealed or flush-mounted range hoods, due to their shallow depth, there is a greater risk of smoke escaping from the front. Utility Model Content

[0003] This utility model provides a range hood to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a range hood. The range hood includes:

[0005] The housing contains a fan assembly;

[0006] A flow guiding cavity is connected to the box body, and the flow guiding cavity has a cavity with an opening at the lower end;

[0007] A smoking plate is disposed in the cavity and together with the guide cavity body to form a guide cavity. The smoking plate has a smoking hole communicating with the guide cavity. The smoking plate is inclined downward from the rear side to the front side of the guide cavity body.

[0008] The depth of the flow guide cavity is less than or equal to a set value, which is related to the depth of the cabinet.

[0009] The distance between the front end of the horizontal projection of the smoking hole and the rear outer surface of the flow guide cavity is L1, where L1 ≥ 260 mm.

[0010] The aforementioned range hood, through the design of the smoke extraction hole size, can increase the air intake of the smoke extraction plate to a certain extent, thereby reducing the risk of smoke escaping from the front of the airflow cavity to a certain extent, even with a relatively small depth of the airflow cavity.

[0011] In some implementations, the set value is one of 330mm, 350mm, and 370mm.

[0012] In some embodiments, the range hood includes an oil cup and a control box. An installation area is provided in the flow guide cavity. At least a portion of the bottom surface of the oil cup and the control box is located in the installation area. The installation area is symmetrical about the left and right sides along the central axis of the range hood, and its width is W1, 600mm≤W1≤800mm.

[0013] In some embodiments, the depth of the oil cup is D1, D1≤(D-290)mm, and the depth of the control box is D2, D2≤(D-290)mm, where D is the depth of the flow guide cavity.

[0014] In some embodiments, the range hood includes an oil cup disposed in the flow guide cavity and close to the front side of the flow guide cavity body, the lower end of the smoke extraction plate is located above the oil cup, and the height of the flow guide cavity body is H1, 100mm≤H1≤200mm.

[0015] In some embodiments, the range hood satisfies the following conditions:

[0016] H4≥75mm, H4=H1-H3, where H3 is the height of the oil cup.

[0017] In some embodiments, the range hood includes an oil cup located outside the flow guide cavity and near the front side of the flow guide cavity, with the lower end of the smoke extraction plate located above the oil cup, and the height of the flow guide cavity being H2, where H2 ≥ 75 mm.

[0018] In some embodiments, the height of the oil cup is H3, where H3 ≥ 35 mm.

[0019] In some embodiments, the angle between the smoking plate and the horizontal plane is A, where A ≥ 8°.

[0020] In some embodiments, the smoking plate has a plurality of smoking holes, which together form a smoking area, the width of which is W2, and W2 ≥ 550 mm.

[0021] In some implementations, W2 ≤ 750 mm.

[0022] In some embodiments, the flow guiding cavity includes a connecting frame and a strength frame. The connecting frame has the cavity, and the strength frame is located inside the cavity. The strength frame has an installation port, and the smoke plate closes the installation port. The smoke plate, the connecting frame, and the strength frame together form the flow guiding cavity. The distance between the left end of the strength frame and the left inner surface of the connecting frame is equal to the distance between the right end of the strength frame and the right outer surface of the connecting frame. The distance is D3, where 8mm ≤ D3 ≤ 30mm.

[0023] In some embodiments, the strength frame includes a first side plate surrounding the rear side of the flow guide cavity, the first side plate being inclined forward in an upward direction, and the horizontal distance between the upper edge of the first side plate and the rear end of the smoke hole being L2, where L2 ≤ 20 mm.

[0024] In some embodiments, the distance between the upper edge of the first side plate and the rear outer surface of the connecting frame is D4, where D4 ≥ 8 mm.

[0025] In some embodiments, the flow guiding cavity has notches on the left and right sides, the width of the notches being W3, 15mm≤W3≤30mm, and / or the depth of the notches being D5, 0. <D5≤D。

[0026] In some embodiments, the central axis of the housing coincides with the central axis of the flow guide cavity, or the distance between the central axis of the housing and the central axis of the flow guide cavity is less than or equal to 50 mm, and D is the depth of the flow guide cavity.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 structures shown in these drawings without creative effort.

[0029] Figures 1 to 6 This is a schematic diagram of the structure of the range hood according to an embodiment of the present utility model;

[0030] Figure 7 This is an exploded view of the flow guide cavity and the smoke plate according to an embodiment of the present invention.

[0031] Explanation of key component reference numerals:

[0032] Range hood 1000, housing 100, flow guide cavity 200, smoke extraction plate 300, oil cup 400, control box 500, fan assembly 101, cavity 201, flow guide cavity 202, notch 203, connecting frame 204, strength frame 205, left side plate 206, right side plate 207, smoke extraction hole 301, mounting surface 2051, first side plate 2052, mounting port 2051a, smoke extraction area 301a. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0038] Please refer to Figures 1 to 3 This utility model provides a range hood 1000. The range hood 1000 includes a housing 100, a flow guide cavity 200, and a smoke extraction plate 300. A fan assembly 101 is housed within the housing 100. The flow guide cavity 200 is connected to the housing 100 and has a cavity 201 with an opening at its lower end. The smoke extraction plate 300 is disposed within the cavity 201 and, together with the flow guide cavity 200, forms a flow guide cavity 202. The smoke extraction plate 300 has smoke extraction holes 301 communicating with the flow guide cavity 202, and the smoke extraction plate 300 is inclined downwards from the rear to the front of the flow guide cavity 200.

[0039] The depth of the flow guide cavity 200 is less than or equal to a set value, which is related to the depth of the cabinet.

[0040] The distance between the front end of the horizontal projection of the smoke inlet 301 and the rear outer surface of the guide cavity 200 is L1, where L1 ≥ 260 mm.

[0041] The aforementioned range hood 1000, through the size design of the smoke inlet 301, can increase the air intake of the smoke plate 300 to a certain extent, thereby reducing the risk of smoke escaping from the front of the guide cavity 200 to a certain extent, even with a relatively small depth of the guide cavity 200.

[0042] Specifically, please combine Figure 1 The range hood 1000 includes vertical, horizontal, and front-to-back directional features. It can be installed above the cooking area to absorb and remove cooking fumes, maintaining a clean and comfortable kitchen environment. Please refer to... Figure 1 and Figure 2 The range hood 1000 includes a housing 100 and a flow guide cavity 200. A fan assembly 101 is installed inside the housing 100. The flow guide cavity 200 is located below the housing 100 and can be fixedly connected to the lower end of the housing 100 by means of screws or welding. The flow guide cavity 200 has a cavity 201 with an opening at the lower end.

[0043] The range hood 1000 also includes a smoke extraction plate 300, which has smoke extraction holes 301. The smoke extraction plate 300 is disposed in the cavity 201 and is inclined downward from the rear to the front of the guide cavity 200. The smoke extraction plate 300 and the guide cavity 200 together form a guide cavity 202. The guide cavity 202 can be used to collect and guide cooking fumes. It is understood that the guide cavity 202 is part of the cavity 201.

[0044] Optionally, in one embodiment, the flow guiding cavity 200 includes a connecting frame 204 and a strength frame 205. The connecting frame 204 has a cavity 201, and the strength frame 205 is located within the cavity 201. The strength frame 205 has a mounting surface 2051, and the smoke extraction plate 300 can be installed at the mounting surface 2051. The smoke extraction plate 300, the connecting frame 204, and the strength frame 205 together form the flow guiding cavity 202.

[0045] During the operation of the range hood 1000, cooking fumes are drawn into the guide cavity 202 by the fan assembly 101, and further enter the fan assembly 101 through the smoke holes 301 on the smoke plate 300, and are then discharged from the kitchen through the fan assembly 101. As the fumes pass through the smoke plate 300, larger oil droplets and some grease in the fumes are separated by the baffle effect of the smoke plate 300. Optionally, the range hood 1000 includes an oil cup 400, which is positioned near the front of the guide cavity 200 to form a reverse-cavity range hood. The grease separated by the smoke plate 300 and the oil condensed on the smoke plate 300 can be collected in the oil cup 400, thereby reducing the grease content entering the fan assembly 101, extending the service life of the range hood 1000, and facilitating subsequent cleaning and maintenance.

[0046] It is understandable that, because the smoke extraction plate 300 is inclined downwards from the rear to the front of the guide cavity 200, the angle between the smoke extraction plate 300 and the wall where the range hood 1000 is located is acute when the range hood 1000 is installed. This arrangement optimizes the pressure radiation direction of the range hood 1000, increases the negative pressure zone area, and improves the smoke extraction effect. Furthermore, the grease and oil separated by the smoke extraction plate 300 will flow to the front of the smoke extraction plate 300 under the influence of gravity. The oil cup 400 can be located below the front of the smoke extraction plate 300 to collect the dripping grease. Users can more easily disassemble and install the oil cup 400, improving the user experience.

[0047] Optionally, in the installed state, the rear surfaces of the housing 100 and the airflow guiding cavity 200 of the range hood 1000 are vertically arranged to fit against or be close to the wall, while the front side of the housing 1000 is away from the wall to be close to the user. After the range hood 1000 is installed, the housing 100 and the airflow guiding cavity 200 can be housed in a cabinet, making the kitchen more tidy.

[0048] In related technologies, range hoods collect and expel cooking fumes from the kitchen. Their main working principle is to draw air out of the kitchen, causing the fumes to circulate and be collected, then expelled through the hood. For fully concealed or flush-mounted range hoods, due to their shallow depth, there is a greater risk of smoke escaping from the front.

[0049] In this embodiment of the invention, the depth of the flow guiding cavity 200 is less than or equal to a set value, which is related to the depth of the cabinet. Please refer to... Figure 3 The distance between the front end of the horizontal projection of the smoke inlet 301 and the rear outer surface of the guide cavity 200 is L1, where L1 ≥ 260mm. The depth of the guide cavity 200 is less than or equal to a set value, which is related to the depth of the cabinet, allowing the range hood 1000 to be completely hidden inside the cabinet or flush with the front surface of the cabinet, improving the overall aesthetics of the kitchen. The distance L1 between the front end of the horizontal projection of the smoke inlet 301 and the rear outer surface of the guide cavity 200 represents the air intake coverage range and oil fume capture efficiency of the smoke inlet 301. Optionally, the set value can be equal to, greater than, or less than the depth of the cabinet, depending on the protrusion height or recess depth of the range hood relative to the kitchen when it is installed in the cabinet.

[0050] With an L1 ≥ 260mm, even with a relatively shallow depth of the guide cavity 200, the smoke inlet 301 can still have a wider air intake coverage area, thereby improving the smoke collection performance of the range hood 1000 and reducing the risk of smoke escaping from the front. Optionally, in one embodiment, the smoke plate 300 may have multiple smoke inlets 301, and the shape, size, and arrangement of the multiple smoke inlets 301 may be the same or different.

[0051] Optionally, in Figures 1 to 6 In this embodiment, the depth of the housing 100 is less than or equal to the depth of the flow guiding cavity 200.

[0052] In some examples, L1 is equal to 260mm, 270mm, 280mm, 290mm, 300mm, 310mm, 320mm, 330mm, 340mm, 350mm or other values ​​that satisfy L1≥260mm.

[0053] Optionally, the upper limit of L1 can be determined based on factors such as the size of the range hood 1000, its installation location, and the layout of the kitchen space.

[0054] In some implementations, please refer to Figure 1 The setting is one of 330mm, 350mm and 370mm.

[0055] The above implementation method can be adapted to common cabinets of different depths to achieve different installation effects.

[0056] Alternatively, in one embodiment, if the depth of the cabinet is 330mm, then the set value is 330mm.

[0057] Alternatively, in one embodiment, if the depth of the cabinet is 350mm, then the setting value is either 330mm or 350mm.

[0058] Alternatively, in one embodiment, if the depth of the cabinet is 370mm, then the set value is any one of 330mm, 350mm and 370mm.

[0059] Understandably, the settings can be selected according to the depth of the cabinet, allowing the range hood 1000 to achieve an installation effect that is flush with the front surface of the cabinet or completely hidden in cabinets of different depths.

[0060] In some implementations, please refer to Figure 1 The range hood 1000 includes an oil cup 400 and a control box 500. An installation area is provided in the flow guide cavity 202. At least a portion of the bottom surface of the oil cup 400 and the control box 500 is located in the installation area. The installation area is symmetrical about the left and right sides along the central axis of the range hood 1000 and has a width of W1, 600mm≤W1≤800mm.

[0061] The above-described implementation makes the positions of the oil cup 400 and the control box 500 easy to observe, disassemble, and maintain, thus improving the user experience.

[0062] Specifically, the oil cup 400 can be used to collect the grease separated from the smoke extraction plate 300 and the condensed oil. The control box 500 can be used to house and protect electrical components such as circuit boards, so as to control the fan assembly 101 and other components, and realize centralized control and functional management of the range hood 1000.

[0063] The installation area is the space within the guide cavity 202 used to accommodate at least a portion of the oil cup 400 and at least a portion of the control box 500. The range hood 1000 is a roughly symmetrical machine. The installation area is symmetrical about the central axis of the range hood 1000, meaning the left and right ends of the installation area are equidistant from the central axis of the range hood 1000. Figure 1 In this embodiment, the central axis of the range hood 1000 coincides with the central axis M of the housing 100 and the central axis N of the flow guide cavity 200.

[0064] The width of the installation area is W1, which means the left and right dimensions of the installation area are W1, and 600mm≤W1≤800mm.

[0065] In some examples, W1 is equal to 600mm, 610mm, 620mm, 630mm, 640mm, 650mm, 660mm, 670mm, 680mm, 690mm, 700mm, 710mm, 720mm, 730mm, 740mm, 750mm, 760mm, 770mm, 780mm, 790mm, 800mm or other values ​​that satisfy 600mm≤W1≤800mm.

[0066] Optionally, in some embodiments, at least a portion of the oil cup 400 and at least a portion of the control box 500 do not completely occupy the entire space of the installation area, and a channel for airflow is still reserved in the installation area, thereby ensuring the smoke collection capacity of the guide cavity 202 to a certain extent.

[0067] In some implementations, please refer to Figure 4 The depth of the oil cup 400 is D1, where D1 ≤ (D-290) mm, and the depth of the control box 500 is D2, where D2 ≤ (D-290) mm, where D is the depth of the guide cavity 200. In this embodiment, the size design of the oil cup 400 and the control box 500 reduces their obstruction of the air intake of the smoke-absorbing plate 300, thereby further reducing the risk of smoke leakage from the front of the guide cavity 200 even with a smaller depth.

[0068] Specifically, the depth of the oil cup 400 is D1, which represents the space occupied by the oil cup 400 in the front-to-back direction within the guide cavity 202. Its size affects the effective area of ​​the air intake region of the smoke plate 300 and the smoothness of airflow. The depth of the control box 500 is D2, which represents the space occupied by the control box 500 in the front-to-back direction within the guide cavity 202. Its size affects the effective area of ​​the air intake region of the smoke plate 300 and the smoothness of airflow.

[0069] D1≤(D-290)mm, D2≤(D-290)mm, where D is the depth of the guide cavity 200, which can reduce the obstruction of the smoke plate 300 by the oil cup 400 and the control box 500, improve the airflow in the guide cavity 202, thereby further reducing the risk of smoke leakage on the front side of the oil and improving the smoking efficiency.

[0070] In some examples, D1 is equal to (D-290)mm, (D-300)mm, (D-310)mm, (D-320)mm, (D-330)mm, (D-340)mm, (D-350)mm, (D-360)mm, (D-370)mm, (D-380)mm, (D-390)mm, (D-400)mm, or other values ​​that satisfy D1≤(D-290)mm.

[0071] Optionally, the lower limit of D1 can be determined based on factors such as the volume requirement of the oil cup 400.

[0072] In some instances, D2 equals (D-290)mm, (D-300)mm, (D-310)mm, (D-320)mm, (D-330)mm, (D-340)mm, (D-350)mm, (D-360)mm, (D-370)mm, (D-380)mm, (D-390)mm, (D-400)mm, or other values ​​that satisfy D2≤(D-290)mm.

[0073] Optionally, the lower limit of D2 can be determined based on factors such as the layout dimensions of internal components (such as circuit boards, terminals, etc.) of the control box 500, heat dissipation requirements, and operating space for installation and maintenance.

[0074] In some implementations, please refer to Figure 1 The range hood 1000 includes an oil cup 400, which is located in the flow guide cavity 202 and close to the front side of the flow guide cavity 200. The lower end of the smoke extraction plate 300 is located above the oil cup 400. The height of the flow guide cavity 200 is H1, and 100mm≤H1≤200mm.

[0075] The above implementation method can improve the smoke collection effect, and at the same time, to a certain extent, avoid the guide cavity 200 from being too high and occupying too much space.

[0076] Specifically, the oil cup 400 is located in the flow guiding cavity 202 and close to the front side of the flow guiding cavity 202. The lower end of the smoke plate 300 is positioned above the oil cup 400 to facilitate the collection of grease separated by the smoke plate 300 and the condensed oil liquid by the oil cup 400. The height of the flow guiding cavity 200 is H1, and H1 can be a factor determining the volume of the cavity 201.

[0077] The dimensions 100mm≤H1≤200mm ensure that the cavity 201 has sufficient volume so that the smoke extraction plate 300 can be tilted and installed in the cavity 201 to achieve the oil guiding effect. It also increases the volume of the enclosed flow channel 202 to improve the smoke collection effect and, to a certain extent, avoids the flow channel 200 from being too high and occupying too much space.

[0078] In some examples, the height H1 of the flow guide cavity 200 is equal to 100mm, 110mm, 120mm, 130mm, 140mm, 150mm, 160mm, 170mm, 180mm, 190mm, 200mm or other values ​​that satisfy 100mm≤H1≤200mm.

[0079] In some implementations, please refer to Figure 1 The range hood 1000 meets the following conditions:

[0080] H4≥75mm, H4=H1-H3, where H3 is the height of the oil cup 400.

[0081] The above-described embodiments can improve the oil guiding effect and airflow smoothness.

[0082] Specifically, H1 is the height of the flow guide cavity 200, H3 is the height of the oil cup 400, H4≥75mm, H4=H1-H3, which means that the vertical distance between the upper end of the flow guide cavity 200 and the upper end of the oil cup 400 is greater than or equal to 75mm.

[0083] H4≥75mm, so that the smoke extraction plate 300 can be tilted in the desired manner, and the grease can be fully separated when the smoke passes through the smoke extraction plate 300, while maintaining the smooth airflow in the cavity 201.

[0084] In some cases, H4 is equal to 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, 120mm, 125mm or other values ​​that satisfy H4≥75mm.

[0085] Optionally, the upper limit of H4 can be determined based on factors such as the tilt angle adjustment range of the smoke plate 300, the overall height limit of the guide cavity 200, and the requirement to maintain the rationality of the airflow path within the cavity 201.

[0086] In some implementations, please refer to Figure 5 The range hood 1000 includes an oil cup 400, which is located outside the flow guide cavity 202 and close to the front side of the flow guide cavity 200. The lower end of the smoke extraction plate 300 is located above the oil cup 400. The height of the flow guide cavity 200 is H2, and H2≥75mm.

[0087] The above implementation method can improve the smoke collection effect, and at the same time, to a certain extent, avoid the guide cavity 200 from being too high and occupying too much space.

[0088] Specifically, the oil cup 400 is located outside the flow guide cavity 202 and near the front side of the flow guide cavity 202. Optionally, the oil cup 400 can be suspended on the flow guide cavity 200.

[0089] The lower end of the smoke plate 300 is positioned above the oil cup 400 to facilitate the collection of grease separated by the smoke plate 300 and the condensed oil liquid by the oil cup 400. The height of the guide cavity 200 is H2, which can be a factor in determining the volume of the cavity 201.

[0090] H2≥75mm, on the one hand, the cavity 201 has sufficient volume so that the smoke plate 300 can be tilted and set in the cavity 201 to achieve the oil guiding effect; on the other hand, it can increase the volume of the enclosed guide cavity 202 to improve the smoke collection effect; and on the other hand, it can avoid the guide cavity 200 from being too high and occupying too much space.

[0091] In some cases, H2 is equal to 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, 120mm, 125mm or other values ​​that satisfy H2≥75mm.

[0092] Optionally, the upper limit of H2 can be determined based on factors such as the size of the range hood 1000.

[0093] In some implementations, please refer to Figure 1 and Figure 5 The height of the oil cup 400 is H3, and H3 ≥ 35mm.

[0094] The above implementation method can reduce the frequency of cleaning the oil cup 400 and improve the user experience.

[0095] Specifically, the height of the oil cup 400 is H3, where H3 ≥ 35mm. This means that the height of the oil cup 400 in the vertical direction is greater than or equal to 35mm. This increases the volume of the oil cup 400 to collect the grease separated from the smoke plate 300, reduces the frequency of cleaning the oil cup 400, and improves the user experience.

[0096] In some cases, H3 is equal to 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm or other values ​​that satisfy H3≥35mm.

[0097] Optionally, the upper limit of H3 can be determined based on factors such as the ease of disassembling and assembling the oil cup.

[0098] In some implementations, please refer to Figure 3 The angle between the smoking plate 300 and the horizontal plane is A, where A ≥ 8°.

[0099] The above-described implementation method can improve the efficiency of oil collection.

[0100] Specifically, A is the angle between the smoking plate 300 and the horizontal plane, and A ≥ 8°. This allows the grease separated from the surface of the smoking plate 300 and the condensed oil to flow towards the oil cup 400 along the inclined direction by gravity, thereby improving the collection efficiency of grease and oil and to a certain extent avoiding the accumulation of grease and oil on the surface of the smoking plate 300, which would affect the smoking effect.

[0101] In some instances, A equals 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, or other values ​​that satisfy A ≥ 8°.

[0102] Optionally, the upper limit of A can be determined based on factors such as the spatial fit between the smoke plate 300 and the cavity 201, the installation structure stability of the smoke plate 300, and the collection efficiency of the oil cup 400.

[0103] In some implementations, please refer to Figure 4 The smoking plate 300 has multiple smoking holes 301, which together form a smoking area 301a. The width of the smoking area 301a is W2, and W2 ≥ 550 mm.

[0104] The above-described implementation method can improve the oil fume capture rate.

[0105] Specifically, the smoke extraction plate 300 has multiple smoke extraction holes 301, which are arranged sequentially from left to right to form a smoke extraction area 301a. The width of the smoke extraction area 301a is W2, where W2 ≥ 550mm. This means the left-right dimension of the smoke extraction area 301a is greater than or equal to 550mm, ensuring that the air intake range of the smoke extraction plate 300 can cover the area where cooking fumes are generated, thereby improving the fume capture rate. Simultaneously, the larger width of the smoke extraction area 301a helps improve airflow distribution, allowing fumes to be evenly drawn in and enhancing the overall smoke extraction effect of the range hood 1000.

[0106] In some examples, the width of the smoking area 301a is W2 equal to 550mm, 570mm, 590mm, 610mm, 630mm, 650mm, 670mm, 690mm, 710mm, 730mm, 750mm, 770mm or other values ​​that satisfy W2≥550mm.

[0107] Optionally, the upper limit of W2 can be determined based on factors such as the width of the cooking area, the size of the range hood 1000, and the need for airflow distribution optimization.

[0108] In some implementations, please refer to Figure 4 W2≤750mm

[0109] The above implementation methods can save energy and reduce consumption.

[0110] Specifically, the smoke extraction plate 300 has multiple smoke extraction holes 301, which can be arranged sequentially from left to right to form a smoke extraction area 301a. The width of the smoke extraction area 301a is W2, where W2 ≤ 750mm. That is, the dimension of the smoke extraction area 301a in the left-right direction is less than or equal to 750mm. This can, to a certain extent, avoid the problem of airflow dispersion caused by an excessively wide smoke extraction area 301a, thereby maintaining a high suction speed and smoke extraction efficiency, and reducing the extra airflow consumption during the operation of the range hood 1000, which helps to achieve energy saving and consumption reduction.

[0111] In some examples, the width of the smoking area 301a is W2 equal to 550mm, 570mm, 590mm, 610mm, 630mm, 650mm, 670mm, 690mm, 710mm, 730mm, 750mm or other values ​​that satisfy 550mm≤W2≤750mm.

[0112] In some implementations, please refer to Figure 4 and Figure 7 The flow guiding cavity 200 includes a connecting frame 204 and a strength frame 205. The connecting frame 204 has a cavity 201. The strength frame 205 is located inside the cavity 201 and has an installation port 2051a. The smoke plate 300 is located at the installation port 2051a. The smoke plate 300, the connecting frame 204, and the strength frame together form the flow guiding cavity 202. The distance between the left end of the strength frame 205 and the left inner surface of the connecting frame 204 is equal to the distance between the right end of the strength frame 205 and the right outer surface of the connecting frame 204. The distance is D3, where 8mm≤D3≤30mm.

[0113] The above-described embodiments can, to a certain extent, ensure the structural strength of the flow guide cavity 200 while improving the smoking effect.

[0114] Specifically, the flow guiding cavity 200 includes a connecting frame 204 and a reinforcing frame 205. The connecting frame 204 is the main load-bearing frame of the entire flow guiding cavity 202. The connecting frame 204 has a cavity 201, and the reinforcing frame 205 is disposed within the cavity 201 and connected to the connecting frame 204. The reinforcing frame 205 has a mounting port 2051a, and the smoke-absorbing plate 300 can be fixed to the connecting frame 204 by means of fasteners, including but not limited to fasteners, to close the mounting port 2051a. In the installed state of the flow guiding cavity 200, the smoke-absorbing plate 300, the connecting frame 204, and the reinforcing frame together form the flow guiding cavity 202.

[0115] The distance between the left end of the strength frame 205 and the left inner surface of the connecting frame 204 is equal to the distance between the right end of the strength frame 205 and the right outer surface of the connecting frame 204. In other words, the strength frame 205 is symmetrical about the left and right sides in the entire cavity 201.

[0116] Furthermore, the distance between the two sides is D3, and D3 satisfies 8mm≤D3≤30mm. On the one hand, this can avoid weakening the structural strength of the strength frame 205 due to a small D3, and on the other hand, it can avoid affecting the air intake of the smoke plate 300 due to an excessively large D3.

[0117] In some examples, D3 is equal to 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm or other values ​​that satisfy 8mm≤D3≤30mm.

[0118] Optionally, the flow guide cavity 200 also includes a left side plate 206 and a right side plate 207. The left side plate 206 fits against the left inner surface of the connecting frame 204, and the right side plate 207 fits against the right inner surface of the connecting frame 204 to strengthen the connecting frame 204.

[0119] In some implementations, please refer to Figure 3 The strength frame 205 includes a first side plate 2052 that surrounds the rear side of the flow guide cavity 202. The first side plate 2052 is inclined forward in an upward direction. The horizontal distance between the upper edge of the first side plate 2052 and the rear end of the smoke hole 301 is L2, where L2≤20mm.

[0120] The above-described implementation method can improve the smoking effect.

[0121] Specifically, when the horizontal distance L2 between the rear end of the smoke extraction hole 301 and the upper edge of the first side plate 2052 is large, the smoke in the area near the wall needs to travel a longer path to enter the smoke extraction hole 301. The smoke is more likely to diffuse or overflow before reaching the smoke extraction hole 301, thus affecting the smoke extraction effect in the area near the wall. Therefore, L2 ≤ 20mm can improve the smoke extraction effect.

[0122] In some examples, L2 is equal to 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm or other values ​​that satisfy L2≤20mm.

[0123] Optionally, the lower limit of L2 can be determined based on factors such as the air intake requirements of the smoke inlet 301 and the uniformity of airflow.

[0124] In some implementations, please refer to Figure 4 The distance between the upper edge of the first side plate 2052 and the rear outer surface of the connecting frame 204 is D4, where D4 ≥ 8 mm.

[0125] The above-described embodiments can improve the structural strength of the flow guiding cavity 200.

[0126] Specifically, the distance D4 between the upper edge of the first side plate 2052 and the outer rear surface of the connecting frame 204 is small, which will weaken the structural strength of the strength frame 205. Therefore, when D4 satisfies D4≥8mm, the structural strength of the diversion cavity 200 can be improved.

[0127] In some examples, D4 is equal to 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm or other values that satisfy D4≥8mm.

[0128] Optionally, the upper limit of D4 can be determined according to factors such as the spatial layout of the diversion cavity 200, the size of the range hood 1000, and the requirements for optimizing the structural strength.

[0129] In certain embodiments, please refer to Figure 6 , the diversion cavity 200 is provided with gaps 203 on the left and right sides respectively. The width of the gap 203 is W3, and 15mm≤W3≤30mm, and / or, the depth of the gap 203 is D5, 0<D5≤D, where D is the depth of the diversion cavity 200.

[0130] The above embodiments can take into account both structural adaptability and smoking performance.

[0131] Specifically, the diversion cavity 200 is provided with gaps 203 on the left and right sides respectively, which are used to reserve space for installing the range hood 1000 into the cabinet in terms of structural layout, so as to avoid the hinges of the cabinet door or other protruding components located on both sides of the diversion cavity 200.

[0132] The width of the gap 203 is W3, and the depth of the gap 203 is D5. 15mm≤W3≤30mm, and / or, 0<D5≤D, which can avoid the interference of the hinge or other protruding components on the diversion cavity 200, and at the same time, to a certain extent, prevent the width of the gap 203 from being too wide and blocking the air flow channel in the diversion cavity 200.

[0133] In some examples, the width of the gap 203, W3, is equal to 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm or other values that satisfy 15mm≤W3≤30mm.

[0134] In some examples, D5 is equal to 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, D or other values that satisfy 0<D5≤D.

[0135] Optionally, D5 can be determined according to factors such as the size of the cabinet door hinge.

[0136] In some implementations, please refer to Figure 1 The central axis M of the housing 100 coincides with the central axis N of the flow guide cavity 200, or the distance between the central axis M of the housing 100 and the central axis N of the flow guide cavity 200 is less than or equal to 50mm.

[0137] The above-described embodiments can improve the aesthetics of the range hood 1000 and optimize the airflow guidance effect.

[0138] Specifically, the central axis refers to the axis of symmetry that extends in the vertical direction.

[0139] The central axis M of the housing 100 coincides with the central axis N of the guide cavity 200, or the distance between the central axis M of the housing 100 and the central axis N of the guide cavity 200 is less than or equal to 50mm. This allows the range hood 1000 to maintain visual symmetry in its overall appearance, while optimizing the guiding effect of the airflow inside the range hood 1000.

[0140] In some examples, the distance between the central axis M of the housing 100 and the central axis N of the flow guide cavity 200 is equal to 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, or other values ​​less than or equal to 50mm.

[0141] Optionally, the lower limit of the distance between the central axis M of the housing 100 and the central axis N of the guide cavity 200 can be determined based on factors such as the structural installation tolerance of the range hood 1000.

[0142] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0143] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, characterized in that, include: The housing contains a fan assembly; A flow guiding cavity is connected to the box body, and the flow guiding cavity has a cavity with an opening at the lower end; A smoking plate is disposed in the cavity and together with the guide cavity body to form a guide cavity. The smoking plate has a smoking hole communicating with the guide cavity. The smoking plate is inclined downward from the rear side to the front side of the guide cavity body. The depth of the flow guide cavity is less than or equal to a set value, which is related to the depth of the cabinet. The distance between the front end of the horizontal projection of the smoking hole and the rear outer surface of the flow guide cavity is L1, where L1 ≥ 260 mm.

2. The range hood according to claim 1, characterized in that, The set value is one of 330mm, 350mm and 370mm.

3. The range hood according to claim 1, characterized in that, The range hood includes an oil cup and a control box. An installation area is provided in the flow guide cavity. At least a portion of the bottom surface of the oil cup and the control box is located in the installation area. The installation area is symmetrical about the left and right sides along the central axis of the range hood, and its width is W1, 600mm≤W1≤800mm.

4. The range hood according to claim 3, characterized in that, The depth of the oil cup is D1, D1≤(D-290)mm, and the depth of the control box is D2, D2≤(D-290)mm, where D is the depth of the flow guide cavity.

5. The range hood according to claim 1, characterized in that, The range hood includes an oil cup, which is located in the flow guide cavity and close to the front side of the flow guide cavity. The lower end of the smoke extraction plate is located above the oil cup. The height of the flow guide cavity is H1, mm≤H1≤mm.

6. The range hood according to claim 5, characterized in that, The range hood meets the following conditions: H4≥75mm, H4=H1-H3, where H3 is the height of the oil cup.

7. The range hood according to claim 1, characterized in that, The range hood includes an oil cup, which is located outside the flow guide cavity and close to the front side of the flow guide cavity. The lower end of the smoke extraction plate is located above the oil cup. The height of the flow guide cavity is H2, where H2 ≥ 75 mm.

8. The range hood according to any one of claims 5-7, characterized in that, The height of the oil cup is H3, where H3 ≥ 35 mm.

9. The range hood according to claim 1, characterized in that, The angle between the smoking plate and the horizontal plane is A, where A ≥ 8°.

10. The range hood according to claim 1, characterized in that, The smoking plate has multiple smoking holes, which form a smoking area. The width of the smoking area is W2, and W2 ≥ 550 mm.

11. The range hood according to claim 10, characterized in that, W2≤750mm.

12. The range hood according to claim 1, characterized in that, The flow guiding cavity includes a connecting frame and a strength frame. The connecting frame has the cavity, and the strength frame is located inside the cavity. The strength frame has an installation port, and the smoking plate closes the installation port. The smoking plate, the connecting frame, and the strength frame together form the flow guiding cavity. The distance between the left end of the strength frame and the left outer surface of the connecting frame is equal to the distance between the right end of the strength frame and the right outer surface of the connecting frame. The distance is D3, where 8mm ≤ D3 ≤ 30mm.

13. The range hood according to claim 12, characterized in that, The strength frame includes a first side plate that surrounds the rear side of the flow guide cavity. The first side plate is inclined forward in an upward direction. The horizontal distance between the upper edge of the first side plate and the rear end of the smoke hole is L2, where L2 ≤ 20 mm.

14. The range hood according to claim 13, characterized in that, The distance between the upper edge of the first side plate and the rear outer surface of the connecting frame is D4, where D4 ≥ 8 mm.

15. The range hood according to claim 1, characterized in that, The diversion cavity is provided with gaps on the left and right sides respectively, the width of the gap is W3, 15 mm ≤ W3 ≤ 30 mm, and / or the depth of the gap is D5, 0 < D5 ≤ D, where D is the depth of the diversion cavity.

16. The range hood according to claim 1, characterized in that, The central axis M of the box body coincides with the central axis N of the diversion cavity, or the distance between the central axis M of the box body and the central axis N of the diversion cavity is less than or equal to 50 mm.

Images