Range hood

Abstract

The utility model discloses a range hood which comprises a range hood body, the range hood body comprises a fan system and a first air inlet for sucking oil smoke, and the first air inlet is communicated with fluid of the fan system; the range hood further comprises an air inlet assembly, the air inlet assembly comprises an air inlet pipeline extending downwards from the range hood body, the air inlet pipeline is provided with a second air inlet capable of sucking air for a table top of a floor cabinet located below the range hood body, and the second air inlet is in fluid communication with the fan system. Compared with the prior art, by arranging the air inlet assembly and utilizing the second air inlet, corresponding to the table top, of the air inlet assembly, negative pressure can be formed through the fan system, so that high-speed airflow is formed at the second air inlet, oil stains, dust and the like on the table top are sucked in, and cleaning of the table top can be achieved without an independent purification device; and the second air inlet at the lower position is used as an auxiliary smoke suction port which is closer to a smoke source, so that smoke leakage can be greatly improved, and the smoke suction effect is improved.

Description

Technical Field

[0001] This utility model relates to kitchen appliances, and in particular to a range hood. Background Technology

[0002] Existing kitchen range hoods typically include a cooktop and a range hood positioned above it. For example, Chinese Patent Application No. 202311126184.1 discloses a kitchen structure that includes: a range hood installed within the main space, connected to the ceiling, and its exhaust vent connected to a duct; and a cooktop installed within the main space and positioned below the range hood.

[0003] The existing range hoods do not have a good way to deal with the grease on the stove surface and basically lack related purification devices. In addition, the air intake of the range hood is too high, which makes it easy for smoke to escape. The ventilation and dehumidification of wooden chopsticks, rice and flour in the cabinet cannot be guaranteed.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a range hood that can purify cooking fumes, improve smoke escape, and clean oil stains on the countertop with a single fan.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a range hood, comprising a range hood body, the range hood body including a fan system and a first air inlet for drawing in oil fumes, the first air inlet and the fan system being in fluid communication; characterized in that:

[0007] The range hood also includes an air intake assembly, which includes an air intake duct extending downward from the range hood body. The air intake duct has a second air inlet that can draw air from the countertop of the cabinet located below the range hood body. The second air inlet is in fluid communication with the fan system.

[0008] Therefore, by setting up an air intake component and utilizing the second air intake corresponding to the countertop, a negative pressure can be generated by the fan system, thereby creating a high-speed airflow at the second air intake to suck up oil stains, dust, and other contaminants from the countertop, achieving countertop cleaning without the need for a separate purification device. Furthermore, using the lower-positioned second air intake as an auxiliary smoke extraction port, which is closer to the smoke source, can greatly improve smoke escape and enhance smoke extraction efficiency. In addition, the above-mentioned improvements in smoke escape and countertop cleaning only require a single fan system, without the need for complex structures and control methods, resulting in lower costs.

[0009] Furthermore, to facilitate control of the range hood in different modes, the range hood body also includes a first baffle that can open and close the first air inlet.

[0010] Furthermore, to facilitate control of the range hood in different modes, the air intake assembly also includes a second baffle capable of opening and closing the second air inlet.

[0011] Furthermore, the air inlet duct is also provided with a third air inlet that can draw air from the cabinet located below the range hood body. The third air inlet is fluidly connected to the fan system, thereby enabling ventilation and dehumidification inside the cabinet.

[0012] Furthermore, to facilitate control of the range hood operating in different modes, the air intake assembly also includes a third baffle capable of opening and closing the third air inlet.

[0013] Preferably, the air intake duct extends downward from the rear side of the range hood body, thereby avoiding taking up cooking space.

[0014] Preferably, in order to achieve fluid communication between the air inlet duct and the fan system, and thus make the air inlet on it fluidly connected with the fan system, the range hood body also includes a fan frame, the fan system is set inside the fan frame, the upper end of the air inlet duct is located on the rear side wall of the fan frame and an air outlet is opened at the upper end, and the air inlet duct is fluidly connected with the fan frame through the air outlet.

[0015] Compared with the prior art, the advantages of this utility model are as follows: By setting up an air intake component and utilizing the second air intake corresponding to the countertop, a negative pressure can be formed by the fan system, thereby creating a high-speed airflow at the second air intake to suck in oil stains, dust, etc. on the countertop, achieving countertop cleaning without the need for a separate purification device; Furthermore, using the lower-positioned second air intake as an auxiliary smoke extraction port, which is closer to the smoke source, can greatly improve smoke escape and enhance the smoke extraction effect; In addition, the above-mentioned improvement in smoke escape and achievement of countertop cleaning only require a fan system, without complex structures and control methods, resulting in lower costs; By opening an air intake corresponding to the cabinet body, ventilation and dehumidification can also be achieved inside the cabinet, greatly extending the lifespan of items that need to be stored inside the cabinet, such as wooden chopsticks, rice, and flour. Attached Figure Description

[0016] Figure 1 This is an installation diagram of the range hood according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of a range hood according to an embodiment of the present utility model (viewed from front to back);

[0018] Figure 3 This is a schematic diagram of a range hood according to an embodiment of the present utility model (viewed from back to front);

[0019] Figure 4This is a cross-sectional view of the range hood according to an embodiment of the present utility model;

[0020] Figure 5 This is an exploded structural diagram of the air intake component of the range hood according to an embodiment of the present utility model. Detailed Implementation

[0021] The embodiments of the present invention 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.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," 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. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] See Figures 1-5 A range hood includes a range hood body 1 and an air inlet assembly 2. The range hood body may include a smoke collection hood 11, a fan frame 12 mounted on the smoke collection hood 11, and a fan system 13 mounted within the fan frame 12. The smoke collection hood 11 has a first air inlet 111, which is in fluid communication with the fan system 13 within the fan frame 12. A first baffle 14 may be provided on the smoke collection hood 11 to open and close the first air inlet 111, which also serves to collect smoke when open. Alternatively, the range hood body may adopt other existing forms, such as a top-mounted type. A base cabinet 100 is provided below the range hood body 1. The base cabinet 100 includes a countertop 101 and a cabinet body 102 (the cabinet door of the cabinet body 102 is not shown). The countertop 101 is located on top of the cabinet body 102 and can be used to install cooking utensils (gas stove, induction cooker, etc.). The interior of the cabinet body 102 can be used as storage space.

[0024] The air intake assembly includes an air intake duct 21, a second baffle 22, and a third baffle 23. The air intake duct 21 may be flat and hollow, extending downwards from the rear side of the range hood body 1 to the base cabinet 100. The air intake duct 21 and the range hood body 1 may be fixed to the wall 200, which serves as the mounting base. The upper end of the air intake duct 21 may be located on the rear side wall of the fan frame 12, and an air outlet 213 is provided at its upper end. The air outlet 213 is in fluid communication with the fan frame 12 (which also has a corresponding opening), and thus with the fan system 13. The portion of the air intake duct 21 above the countertop 101 has a lateral width that can be adapted to the fan frame 12, while the portion below the countertop 101 has a lateral width that can be adapted to the cabinet 102.

[0025] A second air inlet 211 is provided on the front side of the air inlet duct 21 at a position corresponding to the countertop 101. The second air inlet 211 may be slightly higher than the countertop 101. A second baffle 22 is provided at the second air inlet 211, which can be opened and closed. A third air inlet 212 is provided on the front side of the air inlet duct 21 at a position corresponding to the cabinet 102. The third air inlet 212 may be provided in two sets spaced vertically, or two sets spaced horizontally, so as to maximize the area opposite to the cabinet 102 while avoiding opening a large single air inlet and reducing the strength of the air inlet duct 21. A third baffle 23 is provided at the third air inlet 212, which can be opened and closed. The cabinet 102 may be completely open on the rear side, or it may only have an opening at the position corresponding to the third air inlet 212, as long as the third air inlet 212 is in fluid communication with the interior of the cabinet 102.

[0026] The movement of the first baffle 14, the second baffle 22, and the third baffle 23 is not limited and can employ existing technologies such as flipping, translation, and telescoping. A control module can be set up to control the movement of each baffle.

[0027] The range hood of this utility model can operate in the following modes:

[0028] 1) Purify cooking fumes and improve smoke emission

[0029] The third baffle 23 is closed, the first baffle 14 and the second baffle 22 are open, the fan system 13 operates, and the wind speed at the first air inlet 111 is V1, and the wind speed at the second air inlet 211 is V2. When the fan system 13 is operating, a negative pressure is generated at the first air inlet 111, and the fumes are drawn in and then discharged into the common flue, which is no different from a conventional range hood. The second air inlet 211 constitutes an auxiliary smoke extraction port. Because the distance between the second air inlet 211 and the fumes generated by the cooking utensils is relatively close, lower than that of the air inlet of a conventional range hood, it can greatly improve the smoke escape and enhance the smoke extraction effect.

[0030] 2) Clean oil stains on the countertop

[0031] The first baffle 14 and the third baffle 23 are closed, the second baffle 22 is open, the fan system 13 is running, and the wind speed at the second air inlet 211 is V2' (V2' can be much greater than V2). When the fan system 13 is running, the high wind speed at the second air inlet 211 draws in oil, dust, and other contaminants from the cooking area and then discharges them into the common flue.

[0032] 3) Ventilation and dehumidification of the base cabinet

[0033] The first baffle 14 and the second baffle 22 are closed, the third baffle 23 is open, the fan system 13 is running, and the wind speed at the third air inlet 212 is V3. When the fan system 13 is running, the third air inlet 212 draws in the moisture inside the cabinet 102 and then discharges it into the common flue, which greatly extends the lifespan of items that need to be stored, such as wooden chopsticks, rice, and flour, inside the cabinet 102.

[0034] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A range hood, comprising a range hood body (1), the range hood body (1) comprising a smoke collection hood (11), a fan frame (12) disposed on the smoke collection hood (11), and a fan system (13) disposed within the fan frame (12), wherein the smoke collection hood (11) has a first air inlet (111) for drawing in cooking fumes, and the first air inlet (111) and the fan system (13) are in fluid communication; characterized in that: The range hood also includes an air intake assembly (2), which includes an air intake duct (21) extending downward from the range hood body (1). The air intake duct (21) is flat and hollow. The air intake duct (21) extends downward from the rear side of the range hood body (1) to the cabinet (100) located below the range hood body (1). The air intake duct (21) is provided with a second air inlet (211) that can draw air from the countertop (101) of the cabinet (100) located below the range hood body (1). The second air inlet (211) is fluidly connected to the fan system (13). The air inlet duct (21) is also provided with a third air inlet (212) that can draw air from the cabinet (102) of the base cabinet (100) located below the range hood body (1). The third air inlet (212) is fluidly connected to the fan system (13).

2. The range hood according to claim 1, characterized in that: The range hood body (1) also includes a first baffle (14) that can open and close the first air inlet (111).

3. The range hood according to claim 1, characterized in that: The air intake assembly (2) also includes a second baffle (22) capable of opening and closing the second air inlet (211).

4. The range hood according to any one of claims 1 to 3, characterized in that: The air intake assembly (2) also includes a third baffle (23) capable of opening and closing the third air inlet (212).

5. The range hood according to any one of claims 1 to 3, characterized in that: The air inlet duct (21) extends downward from the rear side of the range hood body (1).

6. The range hood according to any one of claims 1 to 3, characterized in that: The range hood body (1) also includes a fan frame (12), the fan system (13) is installed inside the fan frame (12), the upper end of the air inlet pipe (21) is located on the rear side wall of the fan frame (12) and an air outlet (213) is opened at the upper end, and the air inlet pipe (21) is in fluid communication with the fan frame (12) through the air outlet (213).

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