Range hood

Abstract

The embodiment of the utility model belongs to the household appliance technology, and provides an extractor hood which comprises a rack shell and a fan assembly, and the fan assembly is provided with a first exhaust inlet and a second exhaust inlet which are oppositely arranged in the depth direction and communicate with an inner cavity of a rack; in the width direction, the orthographic projection of the rack device towards the horizontal plane is located in the middle area of the orthographic projection of the lower box body device towards the horizontal plane. The lower box body device comprises a box shell; the exhaust fume collecting hood is provided with an exhaust fume collecting cavity; the smoke gathering assembly is rotationally connected with the box shell, and the smoke gathering assembly rotates relative to the box shell, so that the smoke collecting cavity is opened or closed; the oil net is arranged in the exhaust fume collecting hood, the oil net is provided with a first air inlet structure and a second air inlet structure, and the first air inlet structure and the second air inlet structure are arranged in a spaced mode in the width direction; in the width direction, the first air inlet structure and the second air inlet structure incline towards the middle area of the lower box body device. The range hood provided by the utility model is relatively large in air volume and relatively good in smoke suction effect.

Description

Technical Field

[0001] The embodiments of the present application relate to home appliance technology, and more particularly to a range hood. Background Art

[0002] Side-suction range hood, full name side-suction European-style range hood, has an air inlet closer to the source of oil smoke, can lock the oil smoke more quickly, effectively shorten the rising movement distance of oil smoke, and have a more ideal exhaust effect.

[0003] In the related art, in order to adapt to the cabinet, the depth of the range hood is relatively small. For example, if the depth of the cabinet is 350 mm, the depth of the range hood is less than 330 mm.

[0004] However, the air volume of the range hood is small and the smoke extraction effect is poor. Utility Model Content

[0005] The embodiment of the present application provides a range hood with a large air volume and a good smoke extraction effect.

[0006] An embodiment of the present application provides a range hood, comprising:

[0007] Rack assembly, including:

[0008] Rack housing: provided with a rack cavity;

[0009] A fan assembly is located in the inner cavity of the frame, and the fan assembly is provided with a first air suction port and a second air suction port that are arranged opposite to each other in the depth direction and communicate with the inner cavity of the frame;

[0010] The lower box device is located at the bottom of the rack device; along the width direction, the orthographic projection of the rack device toward the horizontal plane is located in the middle area of ​​the orthographic projection of the lower box device toward the horizontal plane; the lower box device includes:

[0011] Box shell; connected with the frame shell;

[0012] The smoke collecting hood is arranged in the box shell, and the smoke collecting hood is provided with a smoke collecting cavity;

[0013] The smoke collecting assembly is rotatably connected to the box shell. The smoke collecting assembly rotates relative to the box shell to open or close the smoke collecting chamber. When the smoke collecting chamber is opened, the smoke collecting assembly and the box shell form a smoke collecting chamber, and the smoke collecting chamber is connected to the smoke collecting chamber.

[0014] The oil net is arranged in the smoke collecting hood. The oil net is constructed with a first air inlet structure and a second air inlet structure. The first air inlet structure and the second air inlet structure are connected to the smoke collecting chamber and the inner cavity of the frame; the first air inlet structure and the second air inlet structure are arranged at intervals along the width direction; in the width direction, the first air inlet structure and the second air inlet structure are inclined toward the middle area of ​​the lower box device.

[0015] In the embodiment of the present application, a smoke collecting chamber is formed by a smoke collecting assembly, and a smoke collecting chamber is formed by a smoke collecting hood. Through the operation of the fan assembly, the kitchen fumes are collected more by the smoke collecting assembly and the smoke collecting hood, and the collected fumes enter the rack device through the oil net. Among them, in the width direction, the first air inlet structure and the second air inlet structure are inclined toward the middle area of ​​the lower box device, that is, the first air inlet structure and the second air inlet structure are inclined toward the position where the rack device is located, which is conducive to the faster entry of fumes into the rack device. Moreover, the fan assembly is provided with double air inlets, which is conducive to the faster flow of fumes. Therefore, the range hood provided by the present application has a large air volume and a better suction effect.

[0016] In some embodiments, the first air inlet structure and the second air inlet structure are symmetrically arranged.

[0017] This is beneficial to improving the uniformity of oil smoke inhalation and the oil smoke absorption effect. Moreover, it is beneficial to improving the aesthetics.

[0018] In some embodiments, the first air inlet structure includes a plurality of first air inlets spaced apart from each other, and an angle between an extension direction of the first air inlet and the first plane is 4-8°;

[0019] And / or, the second air inlet structure includes a plurality of second air inlets arranged at intervals, and an angle between an extension direction of the second air inlets and the first plane is 4-8 degrees;

[0020] The first plane is the center plane of the oil screen in the width direction.

[0021] In this way, the total opening area of ​​the air inlet is larger and has a better effect on gathering the airflow.

[0022] In some embodiments, the fume hood comprises:

[0023] The top wall; the extension plane of the top wall has an angle with the horizontal plane;

[0024] a first side wall connected to the top wall and located at the bottom of the top wall;

[0025] a second side wall connected to the top wall and located at the bottom of the top wall, the second side wall being arranged opposite to the first side wall;

[0026] The bottom wall is arranged opposite to the top wall, the bottom wall is connected to the first side wall and the second side wall, the top wall, the first side wall, the second side wall and the bottom wall form a smoke collecting chamber, and form a first opening and a second opening, the smoke collecting assembly rotates relative to the box shell to open or close the first opening, the oil net covers the second opening, and the angle between the extension plane of the bottom wall and the horizontal plane is 55°-65°.

[0027] When the angle between the extension plane of the bottom wall and the horizontal plane is less than 55°, the angle between the extension plane of the bottom wall and the horizontal plane is small, and the distance of the bottom wall toward the back panel is small. The oil net is likely to block the oil dripping hole at the bottom of the box. When the oil on the top of the box flows downward, it is easy to flow to the oil net and drip from the oil net onto the stove.

[0028] When the angle between the extension plane of the bottom wall and the horizontal plane is greater than 65°, the angle between the extension plane of the bottom wall and the horizontal plane is larger, the size of the second opening is smaller, and thus the air inlet area of ​​the air inlet structure on the oil net is smaller.

[0029] In some embodiments, the housing includes a front shell and a rear shell, the front shell and the rear shell are arranged opposite to each other in the depth direction, and the front shell and the rear shell are connected by a side shell; compared with the rear shell, the smoke collecting assembly is closer to the front shell;

[0030] The first air suction port is located on a side of the second air suction port facing the front shell, and the air suction volume of the second air suction port is greater than the air suction volume of the first air suction port.

[0031] In this way, the smoke collection assembly and the smoke hood of the lower box device guide the oil smoke, so that more oil smoke in the lower box device is closer to the rear side and less is closer to the front side. Therefore, the air suction volume of the second air suction port is greater than the air suction volume of the first air suction port, which is conducive to increasing the exhaust speed and exhaust volume of oil smoke.

[0032] In some embodiments, the fan assembly includes a first end portion and a second end portion, the first end portion is opposite to the front housing, the second end portion is opposite to the rear housing, the first air suction port is provided at the first end portion, and the second air suction port is provided at the second end portion;

[0033] Along the depth direction, the distance from the second end to the rear shell is greater than the distance from the first end to the front shell.

[0034] In this way, the air suction volume of the second suction port is greater than the air suction volume of the first suction port by making the distance from the second end to the rear shell greater than the distance from the first end to the front shell. The structure is simpler, the cost is lower, and the air volume is larger.

[0035] In some embodiments, the air suction volume of the second air suction port is 2-3 times the air suction volume of the first air suction port.

[0036] When the air suction volume of the second air suction port is less than 2 times the air suction volume of the first air suction port, the air suction volume of the second air suction port is small, the exhaust volume of oil smoke is small, and the effect of absorbing oil smoke is poor.

[0037] When the air suction volume of the second air suction port is greater than 3 times the air suction volume of the first air suction port, the air suction volume of the first air suction port is small, the exhaust volume of oil smoke is small, and the effect of absorbing oil smoke is poor.

[0038] In some embodiments, the angle between the panel of the smoke collecting assembly and the horizontal plane is 35°-120°.

[0039] In this way, the overall size of the lower box device is smaller and the smoke collecting cavity is larger, which is conducive to ensuring the smoking effect.

[0040] In some embodiments, further comprising:

[0041] A first noise reduction member is provided on the rear housing and is located on a side of the rear housing facing the fan assembly;

[0042] The second noise reduction member is arranged above the first noise reduction member, and the second noise reduction member is arranged obliquely. The height of the second noise reduction member increases along the direction from the rear shell to the fan assembly.

[0043] In this way, the amount of oil smoke flowing between the rear housing and the fan assembly is large, which is prone to generating noise. The first noise reduction member can effectively reduce the noise. The second noise reduction member is provided to further reduce the noise. The second noise reduction member is arranged at an angle to guide the oil on the top housing to the rear housing, thereby facilitating the oil to enter the oil cup.

[0044] In some embodiments, a power supply assembly is further included, the power supply assembly including:

[0045] An electrical box connected to the top of the rack housing, the electrical box being provided with an electrical cavity, the electrical box being provided with a first heat dissipation port, the first heat dissipation port being in communication with the electrical cavity;

[0046] A power supply bracket is located in the electrical cavity and is spaced apart from the inner wall of the electrical cavity. The power supply bracket is connected to the top of the rack housing and is provided with a second heat dissipation port.

[0047] The power board is located in the electrical cavity and has a distance from the inner wall of the electrical cavity. The power board is connected to the top of the power bracket.

[0048] In this way, the heat dissipation effect of the power supply component is better, and it is easy to meet the heat dissipation requirements of the high-power power supply board. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0050] Figure 1 A schematic structural diagram of a range hood provided in an embodiment of the present application;

[0051] Figure 2 An exploded view of the range hood provided in an embodiment of the present application;

[0052] Figure 3 A front view of the range hood provided in an embodiment of the present application;

[0053] Figure 4 A side view of the range hood provided in an embodiment of the present application;

[0054] Figure 5 A cross-sectional view of a range hood provided in an embodiment of the present application;

[0055] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0056] Figure 7 for Figure 5 A partial enlarged view of point B in the middle;

[0057] Figure 8 A schematic structural diagram of the lower housing device of a range hood provided in an embodiment of the present application;

[0058] Figure 9 A schematic structural diagram of a first side panel in a range hood provided in an embodiment of the present application;

[0059] Figure 10 A cross-sectional view of the lower housing device of the range hood provided in an embodiment of the present application;

[0060] Figure 11 for Figure 10 A partial enlarged view of point C in the middle;

[0061] Figure 12 A schematic structural diagram of a cover plate in a range hood provided in an embodiment of the present application;

[0062] Figure 13 A schematic structural diagram of the lower housing device of the range hood provided by an embodiment of the present application from another angle;

[0063] Figure 14 A schematic structural diagram of a smoke collecting hood in a range hood provided in an embodiment of the present application;

[0064] Figure 15 A cross-sectional view of a fume hood in a range hood provided in an embodiment of the present application;

[0065] Figure 16 A schematic structural diagram of a smoke collection assembly in a range hood provided in an embodiment of the present application;

[0066] Figure 17 for Figure 16 A structural diagram from another angle;

[0067] Figure 18 A schematic structural diagram of a driven rod in a range hood provided in an embodiment of the present application;

[0068] Figure 19 A schematic structural diagram of a connecting rod bracket in a range hood provided in an embodiment of the present application;

[0069] Figure 20 A schematic diagram of the structure of the oil screen in the range hood provided in an embodiment of the present application;

[0070] Figure 21 A schematic diagram of the structure of the oil cup in the range hood provided in an embodiment of the present application;

[0071] Figure 22 for Figure 4 A partial enlarged view of point D in the middle.

[0072] Reference numerals:

[0073] 100 - rack assembly; 110 - rack housing; 111 - front housing; 112 - rear housing; 113 - side housing; 114 - top housing; 120 - fan assembly; 121 - first air inlet; 122 - second air inlet; 123 - air outlet hood; 130 - oil receiving member; 140 - deflector; 150 - first noise reduction member; 160 - second noise reduction member;

[0074] 200 - Lower box assembly; 210 - Box shell; 211 - Top plate; 2111 - Top plate body; 2112 - First bending portion; 212 - First side panel; 2121 - Side panel body; 2121a - First flat portion; 2121b - Second flat portion; 213 - Front strip; 214 - Back plate; 215 - Cover plate; 2511 - Threading hole; 2512 - Pressing groove; 220 - Cigarette collection assembly; 221 - Connecting bracket; 2211 - First limiting structure; 2212 - Second limiting structure; 2213 - Clearance hole; 222 - Driving member; 223 - Connecting rod structure; 2231 - active rod; 2232 - connecting rod; 2233 - driven rod; 2233a - first arc-shaped portion; 2233b - first connecting hole; 2233c - second connecting hole; 2233d - second arc-shaped portion; 2233e - third connecting hole; 2234 - panel bracket; 224 - panel; 230 - fume hood; 231 - top wall; 232 - first side wall; 233 - second side wall; 234 - bottom wall; 240 - oil screen; 241 - first air inlet structure; 2411 - first air inlet; 242 - second air inlet structure; 2421 - second air inlet;

[0075] 300-oil cup; 310-oil cup body; 320-second bending portion;

[0076] 400-decorative cover;

[0077] 500-Power supply assembly. DETAILED DESCRIPTION

[0078] In the related art, in order to fit into the cabinet, the size of the range hood is small, so the air volume of the range hood is small and the smoke extraction effect is poor.

[0079] In order to solve the above-mentioned technical problems, in the embodiment of the present application, a smoke collecting chamber is formed by a smoke collecting assembly, and a smoke collecting chamber is formed by a smoke collecting hood. Through the operation of the fan assembly, the kitchen fumes are collected more by the smoke collecting assembly and the smoke collecting hood, and the collected fumes enter the rack device through the oil net. Among them, in the width direction, the first air inlet structure and the second air inlet structure are inclined toward the middle area of ​​the lower box device, that is, the first air inlet structure and the second air inlet structure are inclined toward the position where the rack device is located, which is conducive to the faster entry of fumes into the rack device. Moreover, the fan assembly is provided with double air inlets, which is conducive to the faster flow of fumes. Therefore, the range hood provided by the present application has a large air volume and a better smoking effect.

[0080] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0081] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0082] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0083] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0084] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0085] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral 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 will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0086] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0087] The present application provides a range hood, wherein the range hood is a side-suction range hood.

[0088] Figure 1 This is a schematic structural diagram of the range hood provided in an embodiment of the present application. Figure 2 This is an exploded view of the range hood provided in an embodiment of the present application.

[0089] See also Figure 1 and Figure 2 As shown, in some embodiments, the range hood includes a rack device 100. The rack device 100 can be communicated with a flue.

[0090] In some embodiments, the range hood includes a lower cabinet device 200 . Kitchen fumes enter the frame device 100 through the lower cabinet device 200 .

[0091] The lower box device 200 is located at the bottom of the rack device 100 .

[0092] In some embodiments, the lower housing device 200 includes a housing 210. The housing 210 can provide protection and aesthetics, and provides installation space for other components.

[0093] In some embodiments, the lower housing device 200 includes a smoke collecting assembly 220. The smoke collecting assembly 220 can rotate relative to the housing 210, thereby opening a certain angle to provide guidance for the flow of oil smoke and achieve smoke collection.

[0094] In some embodiments, the lower box device 200 includes a smoke collecting hood 230. The smoke collecting hood 230 can form a smoke collecting cavity, thereby providing guidance for the flow of oil smoke and achieving smoke collection.

[0095] In some embodiments, the lower box device 200 includes an oil net 240. The oil net 240 can cool and filter the oil smoke.

[0096] Figure 3 This is a front view of the range hood provided in an embodiment of the present application. Figure 4 A side view of the range hood provided in an embodiment of the present application.

[0097] See also Figure 3 and Figure 4 As shown, along the width direction, the orthographic projection of the rack device 100 toward the horizontal plane is located in the middle area of ​​the orthographic projection of the lower box device 200 toward the horizontal plane. Wherein, the width direction is the direction shown by the X axis.

[0098] In some embodiments, along the depth direction, the rear edge of the rack assembly 100 is flush with the rear edge of the lower cabinet assembly 200. The depth direction is the direction indicated by the Y-axis. The rear side is the side facing away from the user. The front side is the side facing the user.

[0099] See also Figure 1 and Figure 2 As shown, in some embodiments, the range hood includes an oil cup 300 .

[0100] The oil cup 300 is disposed at the bottom of the lower tank device 200 and is in communication with the lower tank device 200 to receive oil.

[0101] In some embodiments, the range hood includes a decorative cover 400 .

[0102] The decorative cover 400 is disposed around the front and two sides of the rack device 100 to enhance the appearance of the device.

[0103] In some embodiments, the cabinet has a depth of approximately 350 mm, with the cabinet door panel being approximately 20 mm thick. To enhance aesthetics, the front of the range hood is flush with the cabinet front, or in other words, does not protrude from the cabinet front. The rack assembly 100 is less than 330 mm in depth. This allows the rack assembly 100 to be located inside the cabinet. The lower housing assembly 200 is approximately 350 mm in depth, allowing it to be located outside the cabinet. The lower housing assembly 200 does not need to protrude from the cabinet front.

[0104] The specific structure of the rack device 100 is introduced below.

[0105] Figure 5 A cross-sectional view of the range hood provided in an embodiment of the present application.

[0106] See also Figure 5 As shown, in some embodiments, the rack device 100 includes a rack housing 110 .

[0107] The frame housing 110 is provided with a frame inner cavity, and the bottom of the frame inner cavity is opened.

[0108] In some embodiments, the chassis housing 110 includes a front housing 111 .

[0109] In some embodiments, the housing 110 includes a rear housing 112. The front housing 111 and the rear housing 112 are disposed opposite each other in the depth direction and are connected by a side housing 113. It should be noted that the side facing the user is the front, and the side away from the user is the rear.

[0110] In some embodiments, the chassis housing 110 includes a top housing 114 disposed on top of the front housing 111 , the rear housing 112 , and the side housings 113 .

[0111] It should be noted that this application does not specifically limit the connection method of the top shell 114, front shell 111, rear shell 112, and side shell 113. For example, they can be connected by welding, bonding, or fasteners, or parts of the top shell 114, front shell 111, rear shell 112, and side shell 113 can be integrally formed, for example, by bending sheet metal.

[0112] In some embodiments, the rack device 100 includes a fan assembly 120. The fan assembly 120 is used to exhaust cooking fumes in the kitchen into a flue.

[0113] The fan assembly 120 is located in the inner cavity of the frame.

[0114] In some embodiments, the fan assembly 120 is provided with a first air suction port 121 and a second air suction port 122 .

[0115] The first air suction port 121 and the second air suction port 122 are disposed opposite to each other in the depth direction.

[0116] The first air intake 121 is in communication with the inner cavity of the housing, and the second air intake 122 is in communication with the inner cavity of the housing. Oil smoke in the inner cavity of the housing can enter the fan assembly 120 through the first air intake 121 and the second air intake 122 at the same time. In this way, the overall area of ​​the air intake is larger, which is conducive to increasing the air volume of the range hood.

[0117] In some embodiments, the first air suction port 121 is located on a side of the second air suction port 122 facing the front housing 111 , and the air suction volume of the second air suction port 122 is greater than that of the first air suction port 121 .

[0118] It is understood that due to the guidance of the smoke collecting assembly 220 and the smoke collecting hood 230 of the lower housing 200, the smoke in the lower housing 200 is more likely to be drawn toward the rear side and less toward the front side. Therefore, the air intake of the second air intake port 122 is greater than that of the first air intake port 121, thereby facilitating the discharge of smoke at a faster and more efficient rate.

[0119] Figure 6 for Figure 5 A partial enlarged view of point A in the middle.

[0120] See also Figure 6 As shown, in some embodiments, the fan assembly 120 includes a first end and a second end. The first end is opposite the front housing 111, and the second end is opposite the rear housing 112. The first air intake 121 is located at the first end, and the second air intake 122 is located at the second end. In the depth direction, the distance L from the second end to the rear housing 112 is greater than the distance H from the first end to the front housing 111.

[0121] It can be understood that the air suction volume of the second suction port 122 is greater than the air suction volume of the first suction port 121 by making the distance L from the second end to the rear shell 112 greater than the distance H from the first end to the front shell 111. The structure is simpler, the cost is lower, and the air volume is larger.

[0122] In some embodiments, the opening area of ​​the first air suction port 121 is smaller than the opening area of ​​the second air suction port 122 , so that the air suction volume of the second air suction port 122 is greater than the air suction volume of the first air suction port 121 .

[0123] In some embodiments, the air suction volume of the second air suction port 122 is 2-3 times the air suction volume of the first air suction port 121.

[0124] It is understandable that when the air suction volume of the second air suction port 122 is less than twice the air suction volume of the first air suction port 121, the air suction volume of the second air suction port 122 is small, the exhaust volume of oil smoke is small, and the effect of absorbing oil smoke is poor.

[0125] When the air suction volume of the second air suction port 122 is greater than three times the air suction volume of the first air suction port 121 , the air suction volume of the first air suction port 121 is small, the exhaust volume of oil smoke is small, and the oil smoke suction effect is poor.

[0126] In some embodiments, the air suction volume of the second air suction port 122 is 2.3 times, 2.4 times, 2.5 times, 2.6 times or 2.7 times the air suction volume of the first air suction port 121.

[0127] In some embodiments, along the depth direction, a distance L from the second end to the rear shell 112 is 2-3 times a distance H from the first end to the front shell 111 .

[0128] In some embodiments, along the depth direction, a distance L from the second end portion to the rear shell 112 is 2.3 times, 2.4 times, 2.5 times, 2.6 times, or 2.7 times the distance H from the first end portion to the front shell 111 .

[0129] In some embodiments, the fan assembly 120 includes a volute. The second air inlet 122 and the first air inlet 121 are disposed on the volute.

[0130] In some embodiments, the volute utilizes a logarithmic spiral design.

[0131] In some embodiments, the fan assembly 120 includes an impeller. The impeller is disposed within a volute.

[0132] The diameter of the impeller is not less than 250 mm. For example, the diameter of the impeller can be 270 mm or 280 mm.

[0133] In some embodiments, the fan assembly 120 includes a motor connected to an impeller, and the motor drives the impeller to rotate.

[0134] In some embodiments, the fan assembly 120 includes an air inlet ring, which covers the air inlet. For example, the air inlet ring can cover the first air inlet 121. The air inlet ring can cover the second air inlet.

[0135] In some embodiments, the fan assembly 120 includes an air outlet cover 123, which is connected to the volute and communicates with the volute. The oil smoke entering the volute through the first air inlet 121 and the second air inlet 122 is discharged into the flue through the air outlet cover 123.

[0136] See also Figure 5 As shown, in some embodiments, the rack device 100 includes an oil receiving member 130 .

[0137] The oil receiving member 130 is configured with an oil receiving cavity, the top of which is open. The oil receiving member 130 is disposed at the bottom of the fan assembly 120 to receive oil stains on the fan assembly 120 .

[0138] In some embodiments, the extension direction of the oil receiving member 130 is consistent with the depth direction. The oil receiving member 130 is connected to the fan assembly 120 along the side of the extension direction facing the front shell 111. The oil receiving member 130 is open along the side of the extension direction facing the rear shell 112.

[0139] Along the extension direction, the oil receiving member 130 is higher on the side closer to the front shell 111 than on the side closer to the rear shell 112. In other words, the height of the inner bottom wall of the oil receiving chamber decreases from the front shell 111 to the rear shell 112, thereby directing the oil to a position closer to the oil cup 300, allowing the oil to flow into the oil cup 300.

[0140] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0141] See also Figure 7 As shown, in some embodiments, the rack device 100 includes a baffle 140 .

[0142] The guide plate 140 is disposed on a side of the fan assembly 120 facing the rear housing 112 . The guide plate 140 abuts against the fan assembly 120 and the rear housing 112 .

[0143] Along the extension direction, from the front shell 111 to the rear shell 112 , the height of the guide plate 140 decreases, thereby guiding the oil to the position of the rear shell 112 .

[0144] The guide plate 140 is close to the top shell 114 .

[0145] See also Figure 5 As shown, in some embodiments, the rack device 100 includes a first noise reduction member 150 .

[0146] The first noise reduction member 150 is disposed on the rear housing 112 and is located on a side of the rear housing 112 facing the fan assembly 120 .

[0147] Specifically, the first noise reduction component 150 may be made of a porous material, such as noise reduction cotton or noise reduction foam.

[0148] It is understandable that the amount of oil smoke flowing between the rear shell 112 and the fan assembly 120 is large, which is prone to generate noise. The noise can be effectively reduced by providing the first noise reduction component 150.

[0149] See also Figure 7As shown, in some embodiments, the rack device 100 includes a second noise reduction member 160 .

[0150] The second noise reduction member 160 is disposed above the first noise reduction member 150 . The second noise reduction member 160 is tilted, and the height of the second noise reduction member 160 increases along the direction from the rear housing 112 to the fan assembly 120 .

[0151] It is understandable that the second noise reduction member 160 can achieve a noise reduction effect, and the second noise reduction member 160 is tilted to guide the oil stains on the top shell 114 to the rear shell 112, thereby facilitating the oil stains to enter the oil cup 300.

[0152] In some embodiments, the second noise reducer 160 may be disposed on top of the guide plate 140 .

[0153] In some embodiments, the rack assembly 100 includes a front panel noise reduction assembly located within the rack housing 110 .

[0154] In some embodiments, the rack assembly 100 includes volute noise reduction foam.

[0155] In some embodiments, the rack device 100 includes an air outlet cover 123 as a noise reduction structure.

[0156] This is helpful to reduce the semi-anechoic chamber noise and working noise under high air volume conditions.

[0157] The specific structure of the lower box device 200 is introduced below.

[0158] In some embodiments, the height of the lower housing assembly 200 along the Z-axis does not exceed 280 mm (including the height of the oil cup 300), for example, 275 mm, and the width of the lower housing assembly 200 along the X-axis does not exceed 900 mm, for example, 895 mm. The width of the lower housing assembly 200 along the X-axis does not exceed 355 mm, for example, 350 mm.

[0159] Figure 8 This is a schematic structural diagram of the lower box device of the range hood provided in an embodiment of the present application.

[0160] See also Figure 8 As shown, in some embodiments, the lower box device 200 includes a box shell 210.

[0161] The box shell 210 is connected to the frame shell 110. The box shell 210 and the frame shell 110 are detachably connected.

[0162] In some embodiments, the housing 210 includes a top plate 211 , which is detachably connected to the rack device 100 . Specifically, the top plate 211 is detachably connected to the rack housing 110 .

[0163] In some embodiments, the top plate 211 includes a top plate body 2111. The top plate body 2111 is provided with a communication port.

[0164] In some embodiments, the top plate 211 includes a first bent portion 2112, which is disposed around the perimeter of the communication opening. The rack assembly 100 is inserted within the area enclosed by the first bent portion 2112 and communicates with the communication opening. Fasteners are inserted into the rack assembly 100 via the first bent portion 2112, detachably connecting the first bent portion 2112 to the rack assembly 100 via the fasteners. This provides a highly reliable connection between the top plate 211 and the rack housing 110.

[0165] In some embodiments, the fasteners may be screws. The fasteners may be countersunk screws, and the first bent portion 2112 is designed with a countersunk profile, which not only ensures the depth requirement of the box shell 210, but also minimizes the occupation of the internal space of the box shell 210, which is conducive to increasing the air volume.

[0166] Figure 9 This is a schematic structural diagram of the first side panel in the range hood provided in an embodiment of the present application.

[0167] See also Figure 9 As shown, in some embodiments, the box housing 210 further includes a first side panel 212 .

[0168] In some embodiments, the box shell 210 further includes a second side panel, and the first side panel 212 is disposed opposite to the second side panel.

[0169] The first side panel 212 and the second side panel are manufactured by a bending process, and the strength is increased by a secondary flanging structure.

[0170] The structures of the first side plate 212 and the second side plate are symmetrical to each other, and the first side plate 212 is taken as an example for description.

[0171] The first side panel 212 includes a side panel body 2121 and a plurality of bent edges arranged around the side panel body 2121. Each bent edge is connected to a different panel of the box shell 210, thereby improving the strength of the connection and reducing the deformation.

[0172] In some embodiments, the side panel body 2121 includes a first planar portion 2121a and a second planar portion 2121b connected to each other, wherein the second planar portion 2121b is inclined relative to the first planar portion 2121a toward the second side panel. In other words, the second planar portion 2121b is concave, which helps reduce the overall space occupied by the device. The intersection of the first planar portion 2121a and the second planar portion 2121b is parallel to the bent edge of the second planar portion 2121b facing away from the first planar portion 2121a.

[0173] Figure 10 This is a cross-sectional view of the lower box device of the range hood provided in an embodiment of the present application. Figure 11 for Figure 10 A partial enlarged view of point C in the middle.

[0174] See also Figure 10 and Figure 11 As shown, in some embodiments, the box shell 210 further includes a front strip 213 , which is connected to the first side panel 212 and the second side panel.

[0175] In some embodiments, the first side panel 212, the second side panel and the front strip 213 may be fixed by welding, for example, laser welding.

[0176] In some embodiments, the thickness of the first side plate 212 does not exceed 26 mm, so that the processing cost is low.

[0177] In some embodiments, the box shell 210 further includes a back panel 214 , which is connected to the first side panel 212 and the second side panel. The back panel 214 is disposed opposite to the front strip 213 .

[0178] In some embodiments, the first side plate 212 and the second side plate can be connected to the back plate 214 by rivets. The first side plate 212 and the second side plate can be fixed to the top plate 211 by countersunk screws.

[0179] In some embodiments, the back plate 214 includes a back surface and a bottom surface, and the back surface and the bottom surface are L-shaped.

[0180] In some embodiments, along the width direction, both ends of the back panel 214 are respectively inserted into the inner sides of the first side panel 212 and the second side panel, so that the assembly convenience and assembly accuracy are improved through the cooperation of the two surfaces, and the stability of the connection is improved.

[0181] In some embodiments, both ends of the back plate 214 are inserted into the inner sides of the first side plate 212 and the second side plate, respectively, which helps to avoid possible oil leakage problems at the contact positions.

[0182] In some embodiments, the top plate 211 and the back plate 214 are connected by rivets.

[0183] Figure 12 This is a schematic structural diagram of the cover plate in the range hood provided in an embodiment of the present application.

[0184] See also Figure 11 and Figure 12 As shown, in some embodiments, the housing 210 further includes a cover plate 215 .

[0185] The cover plate 215 is located on the side of the front strip 213 facing the back plate 214. The cover plate 215 is connected to the front strip 213. The cover plate 215 and the front strip 213 form an installation cavity. The switch plate is located in the installation cavity, thereby effectively preventing oil smoke from damaging the switch plate.

[0186] In some embodiments, the control assembly includes a switch plate and a panel glass, and the height of the panel glass does not exceed 40 mm. In this way, the height is minimized and the cabinet matching effect is optimized.

[0187] In some embodiments, the wall surface of the cover plate 215 is tilted in the vertical direction. Oil from the upper portion of the range hood first flows through the oil guide of the cover plate 215 and into the bottom of the front strip 213. It then flows through the inner walls of the first and second side panels, to the bottom, and into the oil cup 300 through the oil leakage hole on the bottom surface of the back panel 214.

[0188] The height direction is the direction indicated by the Z axis.

[0189] In some embodiments, the cover plate 215 is fixed to the inner side of the front strip 213 by screws. At the same time, the cover plate 215 is designed with a flange on the inner side of the screw fixing contact surface to facilitate the positioning of the cover plate 215 before screw fixing and improve the strength.

[0190] In some embodiments, the cover plate 215 is connected to the inner side of the bottom edge of the front strip 213 by a flange structure. When the screws are tightened, they are in close contact here, achieving a sealing effect.

[0191] In some embodiments, the main body of the cover plate 215 is designed to be tilted, and the starting position of the top bend is aligned with the top plate 211, ensuring that when oil drips from the top of the machine, it can flow along the tilted structure to the bottom of the front strip 213.

[0192] In some embodiments, the cover plate 215 is provided with a threading hole 2511, which is located below the top plate 211. The threading hole 2511 is not located in the area surrounded by the first bending portion 2112, so as to avoid locations with more oil dripping.

[0193] In some embodiments, the cover plate 215 is provided with an inward pressing groove 2512 to increase the range of movement of the connecting rod structure 223 of the smoke collecting assembly 220 .

[0194] In some embodiments, the front strip 213 has a wiring operation hole at a position corresponding to the wire hole 2511 of the cover plate 215 to facilitate threading.

[0195] Figure 13 This is a structural diagram of the lower box device of the range hood provided by the embodiment of the present application from another angle. Figure 14 This is a schematic diagram of the structure of the smoke collecting hood in the range hood provided in the embodiment of the present application. Figure 15A cross-sectional view of the fume hood of a range hood provided in an embodiment of the present application.

[0196] See also Figures 13 to 15 As shown, in some embodiments, the lower cabinet device 200 includes a fume hood 230 .

[0197] The smoke collecting hood 230 is disposed in the box shell 210 , and the smoke collecting hood 230 is provided with a smoke collecting cavity.

[0198] In some embodiments, the smoke collecting hood 230 is detachably connected to the box shell 210. In this way, the smoke collecting hood 230 is easy to install and remove.

[0199] In some embodiments, the smoke hood 230 is fixed to the housing 210 by means of buckles and screws. In this way, the reliability of the connection is higher.

[0200] In some embodiments, the fume hood 230 includes a top wall 231 .

[0201] The extension plane of the top wall 231 forms an angle with the horizontal plane.

[0202] When the smoke collecting assembly 220 opens the first opening, the height of the top wall 231 facing the panel is higher than the height of the top wall 231 facing away from the panel.

[0203] In some embodiments, the lighting lamp is arranged on the top wall 231. In this way, it is beneficial for the lighting lamp to illuminate the center of the cooktop.

[0204] In some embodiments, the lighting lamp can be fixed in the mounting hole of the top wall 231 by snap fastening.

[0205] In some embodiments, the angle f between the extension plane of the top wall 231 and the horizontal plane is 10-12°.

[0206] In some embodiments, the angle f between the extension plane of the top wall 231 and the horizontal plane is 11°.

[0207] It is understood that when the angle f between the extension plane of the top wall 231 and the horizontal plane is less than 10°, the illumination center of the lighting lamp is likely to be located inward of the center of the cooktop. When the angle f between the extension plane of the top wall 231 and the horizontal plane is greater than 12°, the illumination center of the lighting lamp is likely to be located outward of the center of the cooktop. Here, the outward side is the side facing the user, and the inward side is the side facing away from the user.

[0208] In some embodiments, the fume hood 230 includes a first sidewall 232 .

[0209] The first side wall 232 is connected to the top wall 231 and is located at the bottom of the top wall 231 .

[0210] In some embodiments, the fume hood 230 includes a second sidewall 233 .

[0211] The second side wall 233 is connected to the top wall 231 and is located at the bottom of the top wall 231 . The second side wall 233 is disposed opposite to the first side wall 232 .

[0212] In some embodiments, the fume hood 230 includes a bottom wall 234 .

[0213] The bottom wall 234 is arranged opposite to the top wall 231, and the bottom wall 234 is connected to the first side wall 232 and the second side wall 233. The top wall 231, the first side wall 232, the second side wall 233 and the bottom wall 234 form a smoke collecting chamber, and form a first opening and a second opening.

[0214] In some embodiments, the smoke collecting assembly 220 rotates relative to the housing 210 to open or close the first opening.

[0215] In some embodiments, the oil screen 240 covers the second opening.

[0216] In some embodiments, the included angle g between the extension plane of the bottom wall 234 and the horizontal plane is 55°-65°.

[0217] It can be understood that when the overall size of the box shell 210 is constant, the smoke collecting chamber as a whole is deep at the lower end and shallow at the upper end, reducing the angle between the bottom plane of the stretching chamber and the horizontal plane, increasing the size of the second opening, thereby increasing the air intake area of ​​the air intake structure on the oil net 240 and improving the smoking effect.

[0218] When the angle g between the extension plane of the bottom wall 234 and the horizontal plane is less than 55°, the angle g between the extension plane of the bottom wall 234 and the horizontal plane is small, and the distance of the bottom wall 234 toward the side of the back panel 214 is small. The oil net 240 is likely to block the oil dripping hole at the bottom of the box body. When the oil on the top of the box body flows downward, it is easy to flow onto the oil net 240 and drip from the oil net 240 onto the stove.

[0219] When the angle g between the extension plane of the bottom wall 234 and the horizontal plane is greater than 65°, the angle g between the extension plane of the bottom wall 234 and the horizontal plane is larger, the size of the second opening is smaller, and thus the air inlet area of ​​the air inlet structure on the oil net 240 is smaller.

[0220] In some embodiments, the included angle between the extension plane g of the bottom wall 234 and the horizontal plane is 60°.

[0221] In some embodiments, the top of the bottom wall 234 is designed with a flange structure, and the oil screen 240 is fixed to the flange structure by screws.

[0222] See also Figure 4 and Figure 13 As shown, in some embodiments, the lower box device 200 includes a smoke collection component 220.

[0223] In some embodiments, the smoke collecting assembly 220 is detachably connected to the top plate 211. In this way, the smoke collecting assembly 220 is more convenient to install and remove.

[0224] In some embodiments, the connecting piece is inserted into the top plate 211 through the smoke collecting assembly 220 , and the smoke collecting assembly 220 and the top plate 211 are detachably connected via the connecting piece.

[0225] The smoke collecting assembly 220 is rotatably connected to the housing 210, and the smoke collecting assembly 220 rotates relative to the housing 210 to open or close the smoke collecting chamber. When the smoke collecting chamber is open, the smoke collecting assembly 220 and the housing 210 form a smoke collecting chamber, which is connected to the smoke collecting chamber.

[0226] In some embodiments, the angle between the panel 224 of the smoke collecting assembly 220 and the horizontal plane is 35°-120°.

[0227] Specifically, when the smoke collecting assembly 220 closes the smoke collecting chamber, the angle between the panel 224 and the horizontal plane can be 35-45 degrees, for example, 40 degrees. In this way, the overall size of the lower box device 200 is small.

[0228] When the smoke collecting assembly 220 opens the smoke collecting chamber, the angle between the panel 224 and the horizontal plane can be 100-120 degrees, for example, 110 degrees. In this way, the smoke collecting chamber is larger, which is conducive to ensuring the smoking effect.

[0229] Figure 16 This is a schematic diagram of the structure of the smoke collection component in the range hood provided in the embodiment of the present application. Figure 17 for Figure 16 A structural diagram from another angle.

[0230] See also Figure 16 and Figure 17 As shown, in some embodiments, the smoke collecting assembly 220 includes a connecting bracket 221 .

[0231] The connecting bracket 221 is connected to the top plate 211 .

[0232] Specifically, the connecting piece is inserted into the connecting bracket 221 through the top plate 211, and the connecting bracket 221 is detachably connected to the top plate 211 via the connecting piece. It is understood that the connecting piece can be installed and removed from the outside of the box shell 210, thereby connecting or disconnecting the connecting bracket 221 from the top plate 211, which is highly convenient to operate.

[0233] In some embodiments, the connector may be a screw, such as a countersunk screw.

[0234] In some embodiments, there may be multiple connectors.

[0235] In some embodiments, the number of the connectors is three, the three connectors are not arranged in a straight line, and the distance between any two connectors is not less than 20 mm.

[0236] In some embodiments, the connecting bracket 221 can be connected to the smoke collecting hood 230 , thereby increasing the movement stability of the entire smoke collecting assembly 220 by increasing the connection points.

[0237] In some embodiments, the smoke collecting assembly 220 includes a driving member 222 .

[0238] The driving member 222 is connected to the connecting bracket 221 .

[0239] Specifically, the driving member 222 may be an electric motor or a motor. For example, the driving member 222 may be a DC motor, which has a low cost.

[0240] In some embodiments, the smoke collecting assembly 220 includes a connecting rod structure 223 .

[0241] The connecting rod structure 223 is connected to the driving member 222 .

[0242] It should be noted that the connecting rod structure 223 may be a four-bar structure. The connecting rod structure 223 may be a sheet metal part.

[0243] In some embodiments, the smoke trapping assembly 220 includes a panel 224 .

[0244] The panel 224 may be a glass panel.

[0245] The panel 224 is connected to the connecting rod structure 223 .

[0246] During operation, the driving member 222 drives the panel 224 to rotate relative to the box shell 210 through the connecting rod structure 223 to open or close the smoke collecting chamber.

[0247] For example, the panel 224 is opened at an angle of 110° to the horizontal plane. When the panel 224 is opened to a fixed angle, the driving member 222 stops running, the motor of the fan assembly 120 starts, and the oil fume suction is started.

[0248] When the range hood is turned off, the driving member 222 is reversed, and the panel 224 rotates downward and is close to the box shell 210. When the panel 224 is closed to a fixed angle, the driving member 222 stops running and the range hood is turned off.

[0249] In some embodiments, there may be two connecting rod structures 223. The two connecting rod structures 223 are spaced apart along the width direction. One of the connecting rod structures 223 may not be driven by the driving member 222. The two connecting rod structures 223 can improve the motion accuracy and reliability.

[0250] See also Figure 16 and Figure 17 As shown, in some embodiments, the connecting rod structure 223 includes an active rod 2231 , and the active rod 2231 is rotatably connected to the driving member 222 .

[0251] In some embodiments, the connecting rod structure 223 includes a connecting rod 2232 , and the connecting rod 2232 is rotatably connected to the active rod 2231 .

[0252] In some embodiments, the connecting rod structure 223 includes a driven rod 2233, which is rotatably connected to the connecting rod 2232, and the driven rod 2233 is rotatably connected to the connecting bracket 221. In this way, the driven rod 2233 has more connection points, which is more reliable, helps to improve strength, and has higher movement stability.

[0253] In some embodiments, the connecting rod structure 223 includes a panel bracket 2234 , which is connected to the panel 224 and is rotationally connected to the driven rod 2233 .

[0254] During operation, when the driving member 222 drives the active rod 2231 to rotate in a first direction, the active rod 2231 drives the driven rod 2233 to rotate in a second direction via the connecting rod 2232. One of the first and second directions is clockwise, and the other is counterclockwise. It will be appreciated that the rotation direction of the active rod 2231 is opposite to that of the driven rod 2233, which helps reduce the space occupied by the connecting rod structure 223.

[0255] Exemplarily, when the active rod 2231 rotates clockwise, the driven rod 2233 rotates counterclockwise, and the panel 224 is opened. When the active rod 2231 rotates counterclockwise, the driven rod 2233 rotates clockwise, and the panel 224 is closed.

[0256] Alternatively, when the active rod 2231 rotates counterclockwise, the driven rod 2233 rotates clockwise, and the panel 224 is opened. When the active rod 2231 rotates clockwise, the driven rod 2233 rotates counterclockwise, and the panel 224 is closed.

[0257] Figure 18 This is a schematic structural diagram of the driven rod in the range hood provided in an embodiment of the present application.

[0258] See also Figure 18 As shown, in some embodiments, the driven rod 2233 includes a first arc-shaped portion 2233a.

[0259] The first arc portion 2233a is provided with a first connection hole 2233b and a second connection hole 2233c, and the first shaft structure is inserted into the connection bracket 221 through the first connection hole 2233b. The first arc portion 2233a is rotatably connected to the connection bracket 221 through the first connection hole 2233b and the first shaft structure.

[0260] The second rotating shaft structure is inserted into the connecting rod 2232 through the second connecting hole 2233c. The first arc portion 2233a is rotatably connected to the connecting rod 2232 through the second connecting hole 2233c and the second rotating shaft structure.

[0261] The first rotating shaft structure may include a screw and a washer, wherein the screw may be a nylon anti-loosening screw.

[0262] The second rotating shaft structure may include a screw and a washer, wherein the screw may be a nylon anti-loosening screw.

[0263] The distance between the first connection hole 2233b and the second connection hole 2233c is not less than 10 mm.

[0264] It can be understood that when the distance between the first connecting hole 2233b and the second connecting hole 2233c is less than 10 mm, the distance between the first connecting hole 2233b and the second connecting hole 2233c is small, and the structural strength of the driven rod 2233 is small.

[0265] Specifically, the distance between the axis of the first connection hole 2233b and the axis of the second connection hole 2233c is not less than 10 mm. Specifically, the distance between the axis of the first connection hole 2233b and the axis of the second connection hole 2233c is greater than 12 mm.

[0266] In some embodiments, the driven rod 2233 includes a second arc-shaped portion 2233d.

[0267] The second arc portion 2233d is connected to the end of the first arc portion 2233a, and the second arc portion 2233d is provided with a third connecting hole 2233e. The second connecting hole 2233c is located between the third connecting hole 2233e and the first connecting hole 2233b. The third rotating shaft structure is inserted into the panel bracket 2234 through the third connecting hole 2233e. The second arc portion 2233d and the panel bracket 2234 are rotatably connected through the third connecting hole 2233e and the third rotating shaft structure.

[0268] In some embodiments, the driven rod 2233 may be U-shaped. The length of the first arc-shaped portion 2233a is smaller than the length of the second arc-shaped portion 2233d.

[0269] In some embodiments, the first arc-shaped portion 2233a and the second arc-shaped portion 2233d are integrally provided.

[0270] Figure 19 This is a schematic structural diagram of the connecting rod bracket in the range hood provided in an embodiment of the present application.

[0271] See also Figure 19 As shown, in some embodiments, a first limiting structure 2211 is provided on the connecting bracket 221 .

[0272] When the panel 224 opens the smoke collecting chamber, the active rod 2231 abuts against the first limiting structure 2211. The first limiting structure 2211 limits the position of the active rod 2231 to ensure the opening angle of the panel 224.

[0273] In some embodiments, the connecting bracket 221 is provided with a second limiting structure 2212. When the panel 224 closes the smoke collecting chamber, the active rod 2231 abuts against the second limiting structure 2212. The second limiting structure 2212 limits the position of the active rod 2231 to ensure the closing angle of the panel 224.

[0274] In some embodiments, a clearance hole 2213 is provided on the top of the connecting bracket 221 , and the clearance hole 2213 avoids the active rod 2231 , thereby effectively preventing the active rod 2231 from interfering with the connecting bracket 221 .

[0275] Figure 20 This is a schematic structural diagram of the oil screen in the range hood provided in an embodiment of the present application.

[0276] See also Figure 20 As shown, in some embodiments, the lower tank device 200 includes an oil screen 240 .

[0277] In some embodiments, the oil net 240 is detachably connected to the fume hood 230 .

[0278] The oil net 240 is disposed within the smoke hood 230 and is configured with a first air inlet structure 241 and a second air inlet structure 242. The first air inlet structure 241 and the second air inlet structure 242 are connected to the smoke collection chamber and the inner cavity of the frame. The first air inlet structure 241 and the second air inlet structure 242 are spaced apart along the width direction.

[0279] In the width direction, the first air inlet structure 241 and the second air inlet structure 242 are inclined toward the middle area of ​​the lower box device 200 .

[0280] It should be noted that the width direction is the direction indicated by the X-axis.

[0281] It can be understood that the first air inlet structure 241 and the second air inlet structure 242 are inclined toward the middle area of ​​the lower box device 200, that is, the first air inlet structure 241 and the second air inlet structure 242 are inclined toward the position where the rack device 100 is located, thereby facilitating faster entry of oil smoke into the rack device 100.

[0282] In some embodiments, the first air inlet structure 241 and the second air inlet structure 242 are symmetrically arranged. This helps to improve the uniformity of oil fume suction and the oil fume suction effect. In addition, it helps to improve the aesthetics.

[0283] In some embodiments, the first air inlet structure 241 includes a plurality of first air inlets 2411 spaced apart from each other. In this way, the total opening area of ​​the first air inlets 2411 is larger, and the air intake volume is larger.

[0284] The included angle m between the extending direction of the first air inlet 2411 and the first plane is 4-8 degrees. The first plane is the center plane of the oil screen 240 in the width direction.

[0285] It is understandable that when the angle m between the extension direction of the first air inlet 2411 and the first plane is less than 4°, the inclination angle of the first air inlet 2411 is small, and the airflow gathering effect is poor.

[0286] When the angle m between the extension direction of the first air inlet 2411 and the first plane is greater than 8°, the inclination angle of the first air inlet 2411 is larger, the area occupied by the first air inlet 2411 along the width direction is larger, the number of the first air inlets 2411 is smaller, the total opening area of ​​the first air inlet 2411 is smaller, and the air intake volume is smaller.

[0287] In some embodiments, the angle m between the extension direction of the first air inlet 2411 and the first plane is 5°.

[0288] In some embodiments, the angle m between the extension direction of the first air inlet 2411 and the first plane is 6°.

[0289] In some embodiments, the second air inlet structure 242 includes a plurality of second air inlets 2421 spaced apart from each other. In this way, the total opening area of ​​the second air inlets 2421 is larger, and the air intake volume is larger.

[0290] The included angle n between the extension direction of the second air inlet 2421 and the first plane is 4-8 degrees. The first plane is the center plane of the oil screen 240 in the width direction.

[0291] In some embodiments, the angle n between the extension direction of the second air inlet 2421 and the first plane is 5°.

[0292] In some embodiments, the angle n between the extension direction of the second air inlet 2421 and the first plane is 6°.

[0293] It is understandable that when the angle n between the extension direction of the second air inlet 2421 and the first plane is less than 4°, the inclination angle of the second air inlet 2421 is small, and the airflow focusing effect is poor.

[0294] When the angle n between the extension direction of the second air inlet 2421 and the first plane is greater than 8°, the inclination angle of the second air inlet 2421 is larger, and the area occupied by the second air inlet 2421 along the width direction is larger. The number of the second air inlets 2421 is smaller, the total opening area of ​​the second air inlet 2421 is smaller, and the air intake volume is smaller.

[0295] In some embodiments, a first flange structure is provided on the side of the oil screen 240 facing away from the panel 224 , and the first flange structure is disposed around the circumference of the first air inlet 2411 . The first flange structure can enhance the strength of the oil screen 240 .

[0296] In some embodiments, the first flange structure is arranged in a one-to-one correspondence with the first air inlet 2411 .

[0297] In some embodiments, a second flange structure is provided on the side of the oil net 240 facing away from the panel 224 , and the second flange structure is disposed around the circumference of the second air inlet 2421 . The second flange structure can enhance the strength of the oil net 240 .

[0298] In some embodiments, the second flange structure is arranged in a one-to-one correspondence with the second air inlet 2421.

[0299] Figure 21 This is a schematic diagram of the structure of the oil cup in the range hood provided in an embodiment of the present application. Figure 22 for Figure 4 A partial enlarged view of point D in the middle.

[0300] See also Figure 21 and Figure 22 As shown, in some embodiments, the oil cup 300 is disposed at the bottom of the lower tank device 200 and is in communication with the lower tank device 200 .

[0301] In some embodiments, the oil cup 300 includes an oil cup body 310 .

[0302] The oil cup body 310 is connected to the lower box device 200 .

[0303] In some embodiments, the oil cup 300 includes a second bent portion 320 .

[0304] The second bend 320 is located at the top of the oil cup body 310. Along the depth direction, the second bend 320 is located on the sidewall of the oil cup body 310 closest to the panel 224. The second bend 320 is angled away from the oil cup body 310. This second bend 320 minimizes the gap between the panel 224 and the oil cup 300 when the panel 224 is closed, improving the aesthetics. Furthermore, along the width direction, a gap exists between the second bend 320 and the two opposing sidewalls of the oil cup body 310. This gap provides space for the panel 224 to rotate.

[0305] Understandably, see Figure 1 As shown, in some embodiments, the range hood further includes a power supply assembly 500 . The power supply assembly 500 is disposed on the top of the frame housing 110 .

[0306] In some embodiments, the power supply assembly 500 includes an electrical box.

[0307] The electrical box is connected to the top of the frame housing 110, and the electrical box is provided with a first heat dissipation port, which is communicated with the electrical cavity. The first heat dissipation port is used for heat dissipation.

[0308] In order to facilitate heat dissipation, the material of the electrical box can be galvanized sheet.

[0309] For example, the electrical box may be fixed to the top of the rack housing 110 by screws.

[0310] In some embodiments, power supply assembly 500 includes a power supply bracket.

[0311] The power supply bracket is located in the electrical cavity and is spaced apart from the inner wall of the electrical cavity. The power supply bracket is connected to the top of the rack housing 110 and is provided with a second heat dissipation port, which can enhance the heat dissipation effect.

[0312] In some embodiments, the second heat dissipation vent is disposed at the bottom of the power supply bracket.

[0313] In some embodiments, the power supply bracket is made of ABS.

[0314] In some embodiments, power supply assembly 500 includes a power strip.

[0315] The power board is located in the electrical cavity and has a distance from the inner wall of the electrical cavity. The power board is connected to the top of the power support.

[0316] In some embodiments, the gap between the electrical box and the components on the power board is no less than 3 mm.

[0317] In some embodiments, the power board has a power of 500W.

[0318] As will be appreciated, the power board can control the power (current, speed) of the motor in the fan assembly 120. When the product is in display mode, the motor speed can be reduced to reduce air volume and noise. During normal use, increasing the motor speed does not affect the maximum air volume or the smoking effect.

[0319] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0320] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A range hood, characterized in that: include; A rack device (100) comprising: A frame housing (110) is provided with a frame inner cavity; A fan assembly (120) is located in the inner cavity of the frame, and the fan assembly (120) is provided with a first air suction port (121) and a second air suction port (122) that are opposite to each other in the depth direction and communicate with the inner cavity of the frame; The lower box device (200) is located at the bottom of the frame device (100); along the width direction, the orthographic projection of the frame device (100) toward the horizontal plane is located in the middle area of ​​the orthographic projection of the lower box device (200) toward the horizontal plane; the lower box device (200) comprises: A box shell (210) connected to the frame shell (110); A smoke collecting hood (230) is arranged in the box shell (210), and the smoke collecting hood (230) is provided with a smoke collecting cavity; A smoke collecting assembly (220) is rotatably connected to the box shell (210), and the smoke collecting assembly (220) rotates relative to the box shell (210) to open or close the smoke collecting chamber; when the smoke collecting chamber is open, the smoke collecting assembly (220) and the box shell (210) form a smoke collecting chamber, and the smoke collecting chamber is in communication with the smoke collecting chamber; An oil net (240) is arranged in the smoke collecting hood (230), and the oil net (240) is constructed with a first air inlet structure (241) and a second air inlet structure (242), the first air inlet structure (241) and the second air inlet structure (242) being connected to the smoke collecting chamber and the inner cavity of the frame; the first air inlet structure (241) and the second air inlet structure (242) are arranged at intervals along the width direction; in the width direction, the first air inlet structure (241) and the second air inlet structure (242) are inclined toward the middle area of ​​the lower box device (200).

2. The range hood according to claim 1, characterized in that: The first air inlet structure (241) and the second air inlet structure (242) are symmetrically arranged.

3. The range hood according to claim 1, characterized in that: The first air inlet structure (241) comprises a plurality of first air inlets (2411) arranged at intervals, and the angle between the extension direction of the first air inlets (2411) and the first plane is 4-8°; And / or, the second air inlet structure (242) comprises a plurality of second air inlets (2421) arranged at intervals, and the angle between the extension direction of the second air inlets (2421) and the first plane is 4-8°; The first plane is the center plane of the oil screen (240) in the width direction.

4. The range hood according to any one of claims 1 to 3, characterized in that: The smoke collecting hood (230) comprises: A top wall (231); an extension plane of the top wall (231) forms an angle with a horizontal plane; a first side wall (232), the first side wall (232) being connected to the top wall (231) and being located at the bottom of the top wall (231); a second side wall (233), the second side wall (233) being connected to the top wall (231) and located at the bottom of the top wall (231), the second side wall (233) being arranged opposite to the first side wall (232); A bottom wall (234), the bottom wall (234) is arranged opposite to the top wall (231), the bottom wall (234) is connected to the first side wall (232), and is connected to the second side wall (233), the top wall (231), the first side wall (232), the second side wall (233) and the bottom wall (234) form the smoke collecting chamber, and form a first opening and a second opening, the smoke collecting assembly (220) rotates relative to the box shell (210) to open or close the first opening, the oil net (240) covers the second opening, and the angle between the extension plane of the bottom wall (234) and the horizontal plane is 55°-65°.

5. The range hood according to any one of claims 1 to 3, characterized in that: The frame housing (110) comprises a front housing (111) and a rear housing (112), the front housing (111) and the rear housing (112) being arranged relative to each other along the depth direction, and the front housing (111) and the rear housing (112) being connected via a side housing; compared to the rear housing (112), the smoke collecting assembly (220) is closer to the front housing (111); The first air suction port (121) is located on a side of the second air suction port (122) facing the front shell (111), and the air suction volume of the second air suction port (122) is greater than the air suction volume of the first air suction port (121).

6. The range hood according to claim 5, characterized in that: The fan assembly (120) comprises a first end and a second end, the first end being opposite to the front shell (111), the second end being opposite to the rear shell (112), the first air suction port (121) being arranged at the first end, and the second air suction port (122) being arranged at the second end; Along the depth direction, the distance from the second end to the rear shell (112) is greater than the distance from the first end to the front shell (111).

7. The range hood according to claim 5, characterized in that: The air suction volume of the second air suction port (122) is 2-3 times the air suction volume of the first air suction port (121).

8. The range hood according to any one of claims 1 to 3, characterized in that: The angle between the panel (224) of the smoke collecting assembly (220) and the horizontal plane is 35°-120°.

9. The range hood according to claim 5, characterized in that: Also includes: a first noise reduction member (150), the first noise reduction member (150) being arranged on the rear housing (112) and located on a side of the rear housing (112) facing the fan assembly (120); A second noise reduction member (160) is provided above the first noise reduction member (150), and the second noise reduction member (160) is tilted, and the height of the second noise reduction member (160) increases along the direction from the rear housing (112) to the fan assembly (120).

10. The range hood according to any one of claims 1 to 3, characterized in that: Also included is a power supply assembly (500), the power supply assembly (500) comprising: An electrical appliance box, the electrical appliance box being connected to the top of the frame housing (110), the electrical appliance box being provided with an electrical appliance cavity, the electrical appliance box being provided with a first heat dissipation port, the first heat dissipation port being in communication with the electrical appliance cavity; a power supply bracket, the power supply bracket being located in the electrical cavity and having a distance from the inner wall of the electrical cavity, the power supply bracket being connected to the top of the rack housing (110), and the power supply bracket being provided with a second heat dissipation port; A power board is located in the electrical cavity and is spaced apart from the inner wall of the electrical cavity. The power board is connected to the top of the power support.

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