Range hood

Abstract

The utility model discloses a range hood. The range hood comprises an air curtain device and a suction device, the air curtain device is used for being arranged on the side, close to the wall surface, of a cooking bench, the air curtain device is provided with an air flow groove, an opening of the air flow groove is formed upwards in the mode of being perpendicular to the plane of the cooking bench, and the suction device is used for being arranged opposite to the cooking bench so as to suck oil smoke. And the air curtain device is used for generating air flow and spraying the air flow through the air flow groove so as to form an air curtain between the cooking bench and the wall surface. The air curtain device can generate air flow and spray the air flow upwards through the air flow groove, the air flow sprayed upwards can form an air curtain between the cooking bench and the wall face, when oil smoke is close to the wall face, the air curtain can blow the oil smoke upwards into the suction device, then the oil smoke is sucked away by the suction device, and pollution of the oil smoke to the wall face can be reduced in the mode.

Description

Technical Field

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

[0002] A range hood is a device used to extract the fumes produced during cooking. Traditional range hoods are usually suspended above the stove to extract the upward-blowing fumes. However, some of the fumes produced during cooking also drift around and adhere to the walls and other objects, thus causing pollution to the walls and other objects. Utility Model Content

[0003] To address the problem of oil fumes spreading and polluting walls in existing technologies, this invention provides a range hood.

[0004] This application provides a range hood, including an air curtain device and a suction device. The air curtain device is installed on the side of the stove near the wall and has an airflow channel with the opening of the airflow channel perpendicular to the surface of the stove and facing upward. The suction device is installed opposite to the stove to extract cooking fumes. The air curtain device generates airflow and sprays it out through the airflow channel to form an air curtain between the stove and the wall.

[0005] In some embodiments, the airflow channels are designed to extend along and protrude from both sides of the stovetop.

[0006] In some embodiments, the airflow channel includes a straight channel and a curved channel, with the curved channel provided on both sides of the straight channel. The curved channel is designed to protrude from both sides of the stove and bend toward the side where the stove is located.

[0007] In some embodiments, the air curtain device includes a pneumatic part and an air cavity part. The airflow groove is formed in the air cavity part, and an air passage is formed inside the air cavity part. The air passage is connected to the airflow groove. The pneumatic part is provided near the curved groove of the air cavity part. The pneumatic part is used to generate airflow and is connected to the air passage.

[0008] In some embodiments, the pneumatic unit has an air inlet located on the side of the pneumatic unit facing away from the stove.

[0009] In some embodiments, the air inlet is provided with a grille, the grille including a frame and a plurality of partitions, the plurality of partitions being connected to the frame and the plurality of partitions being inclined outward from the air inlet.

[0010] In some embodiments, the plurality of the spacers are detachably connected to the frame.

[0011] In some embodiments, the air curtain device further includes a baffle strip disposed at the open end of the airflow channel, which is located near the wall and tangent to the opening of the airflow channel, in order to restrict the flow direction of the airflow when it exits the airflow channel.

[0012] In some embodiments, the suction device includes a power unit and a suction shroud connected to the power unit and used to conform to a wall surface.

[0013] In some embodiments, the suction hood has an inclined surface at the point where it contacts the wall, and the inclined surface is tangent to the wall.

[0014] Compared with the prior art, the beneficial effects of this utility model embodiment of a range hood are as follows: The range hood provided in this application includes an air curtain device and a suction device. The air curtain device is set on the side of the stove near the wall, and the suction device is set above the stove and opposite to the stove. The air curtain device has an airflow groove, which can generate airflow and spray it upward through the airflow groove. The upward airflow forms an air curtain between the stove and the wall. When oil fumes approach the wall, the air curtain can blow the oil fumes upward into the suction device and then suck them away. In this way, the pollution of the wall by oil fumes can be reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application;

[0016] Figure 2 yes Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 3 This is another overall structural schematic diagram of one embodiment of this application;

[0018] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point B;

[0019] Figure 5 This is a disassembled structural diagram of an embodiment of the grille provided in this application.

[0020] 100. Air curtain device; 11. Pneumatic unit; 111. Air inlet; 12. Air chamber; 121. Airflow channel; 01. Straight channel; 02. Curved channel; 13. Grille; 131. Frame; 132. Partition; 14. Baffle; 200. Suction device; 21. Power assembly; 22. Suction hood; 221. Inclined surface; S. Wall surface; W. Stovetop. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] like Figure 1 , Figure 2The range hood shown includes an air curtain device 100 and a suction device 200. The air curtain device 100 generates airflow to form an air curtain, and the suction device 200 is used to extract cooking fumes. The air curtain device 100 is provided with an airflow channel 121, through which the airflow generated by the air curtain device 100 is ejected. The suction device 200 is positioned opposite to the stove W. The airflow ejected by the air curtain device 100 can form an air curtain between the stove W and the wall S, so that the cooking fumes generated on the stove W are blocked by the air curtain as they move towards the wall S. Under the action of the airflow, the fumes are blown into the suction device by the air curtain assembly and then extracted and discharged by the suction device. It can be understood that a fan is provided inside the air curtain assembly, which generates airflow and then ejects it through the airflow channel 121 to form an air curtain.

[0028] With the above design, when oil fumes approach the wall S, the air curtain can blow the oil fumes upward into the suction device 200 and then suck them away. In this way, the oil fumes can be reduced from adhering to the wall S and causing pollution to the wall S.

[0029] The technical details of each component will be introduced below.

[0030] In some implementations, such as Figure 1 , Figure 2 As shown, the airflow channels 121 extend to both sides and protrude from both sides of the stovetop W. In this way, the width of the air curtain generated by the air curtain assembly is greater than the width of the stovetop W, thereby forming a larger protection range and more completely blocking the oil fumes drifting towards the wall S, thus enhancing the protective effect of the range hood on the wall S.

[0031] In some implementations, such as Figure 1 , Figure 2 As shown, the airflow channel 121 includes a straight channel 01 and a curved channel 02. The straight channel 01 has curved channels 02 at both ends. The straight channel 01 and the curved channel 02 are located on the side of the stove W near the wall S. The straight channel 01 is parallel to the side of the stove W near the wall S. The curved channel 02 protrudes from both sides of the stove W away from the straight channel 01 and bends at a predetermined angle toward the side of the stove W.

[0032] Through the above design, the straight groove 01 and the curved groove 02 tend to surround the stove W. As the straight groove 01 and the curved groove 02 surround the stove W, the airflow generated by the air curtain component, after being ejected through the straight groove 01 and the curved groove 02, will also surround the stove W, which is conducive to more effectively blocking the oil fumes.

[0033] In practical applications, the fumes generated on the stove W will spread to both sides of the stove W. After the curved groove 02 bends towards the side where the stove W is located, it can also block the fumes spreading to both sides of the stove W. Therefore, the range hood can better block the fumes spreading from the stove W, and thus more effectively reduce the pollution of the wall S by the fumes.

[0034] In other embodiments, the air curtain device 100 is further provided with a second airflow channel 121. The second airflow channel 121 is located on both sides of the stove W. The airflow ejected from the second airflow channel 121 will form an air curtain on both sides of the stove W to block the oil fumes escaping to both sides of the stove W. In this way, the range hood can gather more and larger range of oil fumes through the air curtains in all directions and blow the gathered oil fumes toward the position of the suction device 200 so that the oil fumes are sucked out of the room by the suction device 200.

[0035] In some implementations, such as Figure 1 , Figure 2 As shown, the air curtain device 100 includes a pneumatic unit 11 and an air chamber 12. The airflow groove 121 has an air chamber 12, and the air chamber 12 also has an air passage inside, which is connected to the airflow groove 121. The airflow inside the air passage can flow out through the airflow groove 121. Pneumatic units 11 are provided near the bend 02 of the air chamber 12. The pneumatic units 11 are used to generate airflow. The pneumatic units 11 are equipped with fans for generating airflow. The generated airflow enters the air passage of the air chamber 12 and is then evenly sprayed out from various parts of the airflow groove 121. The two pneumatic units 11 at the bend 02 of the air chamber 12 simultaneously generate airflow into the air chamber 12. This helps to make the airflow sprayed from the airflow groove 121 more uniform and also increases the air output of the air curtain assembly of the range hood.

[0036] Understandably, the greater the air output of the air curtain component, the stronger the air curtain will be. A stronger air curtain can more effectively block oil fumes, and thus more effectively prevent oil fumes from polluting the wall surface.

[0037] In some implementations, such as Figure 1 , Figure 2As shown, the pneumatic unit 11 is provided with an air inlet 111. The air inlet 111 is used for the fan inside the pneumatic unit 11 to draw in air from the external environment to generate airflow. The air inlet 111 is located on the side of the pneumatic unit 11 that is away from the stove W. The side of the pneumatic unit 11 that is away from the stove W is far away from the oil fumes, and there is also an air curtain to block the oil fumes. In this way, the air drawn in by the pneumatic unit 11 will not contain a large amount of oil fumes. If the air drawn in by the pneumatic unit 11 contains oil fumes, the air curtain generated by the air curtain assembly will also contain oil fumes. The oil fumes inside the air curtain will adhere to the wall S and cause pollution to the wall S. Therefore, the air inlet 111 is located on the side of the pneumatic unit 11 that is away from the stove W, which helps to reduce the pollution of the wall S by oil fumes.

[0038] Please see Figure 2 , Figure 5 As shown, the air inlet 111 is also provided with a grille 13, which includes a frame 131 and a plurality of partitions 132. The partitions 132 are all connected to the frame 131 and are spaced at predetermined intervals to block the air inlet 111, thus preventing large objects from being sucked into the air inlet 111 and damaging the air curtain device 100. Furthermore, the partitions 132 are inclined outwards from the air inlet 111, and all partitions 132 are parallel to each other.

[0039] In a kitchen environment, liquids may splash. The baffle 132, positioned facing outwards from the air inlet 111, allows liquids splashed onto the grille 13 to drip along the inclined direction of the baffle 132 onto the outside of the air inlet 111, preventing them from sliding into the interior of the air inlet 111 and adversely affecting the fan inside the pneumatic unit 11. In summary, this design effectively protects the air curtain device 100.

[0040] In some implementations, such as Figure 5 As shown, the multiple partitions 132 are detachably connected to the frame 131. The frame 131 has multiple evenly distributed insertion slots, and both ends of the partitions 132 are inserted into the frame 131 through the insertion slots.

[0041] In practical applications, since the grille 13 is in the kitchen environment for a long time, a lot of dirt will accumulate on its surface over time. Since the grille 13 has a mesh structure, it is very troublesome to clean. In order to facilitate the cleaning of the grille 13, the frame 131 and the partition 132 of the grille 13 are designed to be detachable from each other. During cleaning, the partition 132 and the frame 131 are disassembled, which makes it easy to clean each component of the grille 13 more thoroughly, which is beneficial to the maintenance of the air curtain assembly.

[0042] In some implementations, such as Figure 5As shown, the air curtain device 100 also includes a baffle 14, which is disposed at the open end of the airflow channel 121 on the side close to the wall S. The side of the baffle 14 away from the wall S is tangent to the open end of the airflow channel 121. The baffle 14 is used to restrict the direction of airflow when the airflow channel 121 ejects airflow.

[0043] When the airflow channel 121 ejects airflow, the baffle 14 can reduce the dispersion of airflow toward the wall S, so that the airflow can converge more concentrated when it ejects airflow channel 121, thereby making the air curtain formed by the air curtain device 100 stronger and improving the blocking effect of the air curtain on oil fumes.

[0044] The baffle 14 can be made of relatively hard rubber, which is not easy to deform when restricting the airflow direction. In addition, the rubber material is not likely to cause harm to the human body, reducing the possibility of injury to the human body due to accidental bumps during actual use.

[0045] In some embodiments, the air curtain device 100 is at least partially embedded in the countertop of the stove W. Embedding the air curtain device 100 in the countertop of the stove W makes the surface of the stove W flatter and simpler, and also facilitates the fixing of the air curtain device 100. After the air curtain device 100 is embedded in the countertop, the area of ​​the air curtain device 100 exposed outside the countertop of the stove W is greatly reduced. This means that when cleaning the stove W, the air curtain device 100 will not cause excessive obstruction, and it also reduces the area that needs to be cleaned. In summary, embedding the air curtain device 100 in the countertop of the stove W facilitates the cleaning and maintenance of the stove W and the air curtain device 100 during daily use.

[0046] In some implementations, such as Figure 1 , Figure 3 , Figure 4 As shown, the aforementioned suction device 200 includes a power assembly 21 and a suction hood 22. The suction hood 22 is connected to the power assembly 21. A fan is installed inside the power assembly 21 to generate suction for the fumes. The suction hood 22 is located at the suction port of the power assembly 21 and is used to collect the fumes to help the power assembly 21 extract the fumes out of the room. The suction hood 22 is in a close fit to the wall surface S, which allows for more thorough collection of fumes. The air curtain can enter the interior of the suction hood 22 along the wall surface S and then be collected by the suction hood 22.

[0047] The aforementioned suction hood 22 is arranged opposite to the stove W in the vertical direction (i.e., the direction perpendicular to the surface of the stove W), and the projection of the suction hood 22 on the surface of the stove W can completely cover the stove W, which is beneficial to improving the suction device 200's ability to collect and absorb oil fumes.

[0048] In some implementations, such as Figure 3 , Figure 4 As shown, the suction hood 22 has an inclined surface 221 at the point where it contacts the wall S, and this inclined surface 221 is tangent to the wall S. Airflow and fumes can flow smoothly into the suction hood 22 through this inclined surface 221, reducing turbulence caused by airflow and fumes encountering obstacles during their ascent. This facilitates the collection of airflow and fumes by the suction hood 22 and also reduces the noise of the range hood during actual use.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A range hood, characterized in that, include: An air curtain device (100) is provided with an airflow channel (121) to eject airflow; A suction device (200) is provided, which is arranged opposite to the stove (W) to extract cooking fumes; The air curtain device (100) is used to generate airflow and spray it out through the airflow channel (121) to form an air curtain between the stove (W) and the wall (S), and the air curtain can be used to block oil fumes.

2. The range hood according to claim 1, characterized in that, The airflow groove (121) is used to extend along both sides of the stove (W) and protrude from both sides of the stove (W).

3. The range hood according to claim 1, characterized in that, The airflow channel (121) includes a straight channel (01) and a curved channel (02). The curved channel (02) is provided on both sides of the straight channel (01). The curved channel (02) is used to protrude from both sides of the stove (W) and bend towards the side where the stove (W) is located.

4. The range hood according to claim 3, characterized in that, The air curtain device (100) includes a pneumatic part (11) and an air cavity part (12). The airflow groove (121) is opened in the air cavity part (12). An air passage is opened inside the air cavity part (12). The air passage is connected to the airflow groove (121). The pneumatic part (11) is provided near the bend (02) of the air cavity part (12). The pneumatic part (11) is used to generate airflow and is connected to the air passage.

5. The range hood according to claim 4, characterized in that, The pneumatic unit (11) is provided with an air inlet (111), which is located on the side of the pneumatic unit (11) facing away from the stove (W). The air inlet (111) is provided with a grille (13), the grille (13) includes a frame (131) and a plurality of partitions (132), the plurality of partitions (132) are all connected to the frame (131), and the plurality of partitions (132) are inclined to the outside of the air inlet (111).

6. The range hood according to claim 5, characterized in that, The plurality of the partitions (132) are detachably connected to the frame (131).

7. The range hood according to claim 1, characterized in that, The air curtain device (100) also includes a baffle (14), which is disposed at the open end of the airflow channel (121) for being close to the wall (S) and tangent to the opening of the airflow channel (121) to restrict the flow direction of the airflow when it flows out of the airflow channel (121).

8. The range hood according to claim 1, characterized in that, The air curtain device (100) is at least partially embedded in the countertop of the stove (W).

9. The range hood according to claim 1, characterized in that, The suction device (200) includes a power assembly (21) and a suction hood (22), the suction hood (22) being connected to the power assembly (21) and the suction hood (22) being used to conform to the wall surface (S).

10. The range hood according to claim 9, characterized in that, The suction cover (22) has a bevel (221) at the point where it fits against the wall (S), and the bevel (221) is tangent to the wall (S).

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