Range hood

Abstract

The utility model discloses a range hood. The range hood comprises an air blowing device and an air extracting device, wherein the air blowing device is provided with an air outlet channel for air flow to flow out; the air extracting device and the air blowing device are oppositely arranged; wherein the blowing device is used for generating airflow along the plane where the wall is located to form an air curtain to isolate lampblack from the wall, and the air extractor is used for extracting the lampblack. The air flow can flow along the wall after flowing out of the air outlet channel, so that an air curtain is formed on the wall, when oil fume is close to the wall, the air curtain can blow away the oil fume in the air flow direction, the air exhaust device and the air blowing device are oppositely arranged, and after making contact with the air curtain, the oil fume can be blown into the air exhaust device by the air curtain to be sucked away. The blowing device forms an air curtain on the wall surface to blow oil fume to be attached to the wall surface into the air extractor to be sucked away, so that the oil fume can be effectively prevented from polluting the wall surface.

Description

Technical Field

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

[0002] While traditional range hoods can remove most of the cooking fumes from the room, a significant amount of fumes still adheres to the walls during the extraction process, causing oil stains that pollute the walls and damage the room's hygiene. Furthermore, the oil stains that adhere to the walls are very difficult to clean. Utility Model Content

[0003] To address the problem of oil fumes easily adhering to walls and causing wall pollution in existing technologies, this utility model provides a range hood.

[0004] This application provides a range hood, including an air blowing device and an air extraction device. The air blowing device is provided with an air outlet channel for airflow. The air extraction device is disposed opposite to the air blowing device. The air blowing device is used to generate airflow along the plane of the wall to form an air curtain to isolate the fumes from the wall, and the air extraction device is used to extract the fumes.

[0005] In some embodiments, the air blowing device is used to be mounted on a wall and is used to press tightly against the wall.

[0006] In some embodiments, the air blowing device is at least partially embedded in the stovetop.

[0007] In some embodiments, the air blowing device includes a main body and a closure member. The main body has the air outlet channel, and the closure member is movably connected to the main body. The closure member can move from an open state to a closed state relative to the main body to control the opening and closing of the air outlet channel.

[0008] In some embodiments, an air cavity is provided inside the main body. When the closure is in the open state, the air cavity is connected to the air outlet channel. When the closure is in the closed state, the air cavity is disconnected from the air outlet channel.

[0009] The air blowing device also includes a first fan, the air outlet of which is connected to the air chamber.

[0010] In some embodiments, the closure includes a rotating part and a supporting part, the rotating part being rotatably connected to the main body, and the supporting part being connected to the rotating part;

[0011] The air outlet channel is provided with a stepped portion. When the closing member is in the closed state, the supporting portion and the stepped portion seal against each other to close the air outlet channel. When the closing member is in the open state, the supporting portion and the stepped portion disengage to allow the air outlet channel to communicate with the air chamber.

[0012] In some embodiments, an elastic element is provided at the movable connection between the closure member and the main body, the elastic element being used to drive the abutment portion to elastically seal against the step portion.

[0013] In some embodiments, the outlet end of the air outlet duct is a smooth arc-shaped structure, and the tangential curvature of the arc-shaped structure is designed to be tangent to the wall.

[0014] In some embodiments, both ends of the air outlet duct are designed to protrude from both sides of the stovetop along the extension direction of the air outlet duct.

[0015] In some embodiments, the suction device includes a power assembly and a suction hood connected to the power assembly, and the suction hood is configured to be positioned opposite the stove and the blowing device.

[0016] The suction hood has a collection port on the side near the blowing device, and the collection port is used to cover the air outlet channel by projecting its image onto the stove surface.

[0017] 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 blowing device and an air extraction device. The air blowing device is provided with an air outlet channel for airflow. The air extraction device is arranged opposite to the air blowing device. The air blowing device is used to generate airflow along the plane of the wall to form an air curtain to isolate the fumes from the wall, and the air extraction device is used to extract the fumes. The air blowing device is equipped with a fan inside. The airflow generated by the fan flows out through the air outlet channel. After the airflow flows out of the air outlet channel, it flows along the wall, thus forming an air curtain on the wall. When the fumes approach the wall, the air curtain blows the fumes away along the airflow direction. In addition, the air extraction device is arranged opposite to the air blowing device. After the fumes come into contact with the air curtain, they are blown into the air extraction device, and the air extraction device then extracts the fumes out of the room. Through the above design, the air blowing device forms an air curtain on the wall to blow the fumes that are about to adhere to the wall into the air extraction device for extraction, thereby effectively preventing the fumes from polluting the wall. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembled structure according to one embodiment of this application;

[0019] Figure 2 This is a cross-sectional structural diagram of one embodiment of this application;

[0020] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point B;

[0022] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point C.

[0023] 100. Air blowing device; 11. Main body; 111. Air outlet duct; 01. Step section; 112. Air chamber; 12. Closure part; 121. Rotating part; 122. Supporting part; 200. Air extraction device; 21. Power component; 22. Suction hood; S. Wall; W. Stove. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] like Figure 1 The range hood shown includes an air blowing device 100 and an air extraction device 200. The air blowing device 100 is provided with an air outlet channel 111 for airflow, the air outlet channel 111 is designed to fit against a wall S, and the side of the air outlet channel 111 that is close to the wall S is tangent to the plane of the wall S. The air extraction device 200 is disposed opposite to the air blowing device 100. The air blowing device 100 is used to generate airflow along the plane of the wall S to form an air curtain to isolate the fumes from the wall, and the air extraction device 200 is used to extract the fumes. The blowing device 100 is equipped with a fan inside. The airflow generated by the fan flows out through the air outlet 111. Since the air outlet 111 is tangent to the wall, the airflow flows along the wall after exiting the air outlet 111, thus forming an air curtain on the wall. When the fumes approach the wall, the air curtain blows the fumes away along the airflow direction. In addition, the exhaust device 200 is set opposite to the blowing device 100. After the fumes come into contact with the air curtain, they are blown into the exhaust device 200, and the exhaust device 200 then extracts the fumes out of the room. Through the above design, the blowing device 100 can effectively prevent the fumes from polluting the wall by forming an air curtain on the wall and blowing the fumes that want to adhere to the wall into the exhaust device 200 for suction.

[0031] The technical details of each component will be introduced below.

[0032] In some implementations, such as Figure 1 As shown, the air blowing device 100 is used to be installed on the wall S and pressed tightly against the wall S. The air blowing device 100 can be detachably fixed to the wall S by means of bolts, clips, etc. By directly fixing it to the wall S, it is convenient for the air outlet channel of the air blowing device 100 to be tangential to the wall surface.

[0033] In some embodiments, the aforementioned air blowing device 100 is at least partially embedded in the cooktop W. Embedding the air blowing device 100 partially or completely into the cooktop W makes the cooktop W's surface cleaner. If the air blowing device 100 protrudes too much from the cooktop W's surface, it will occupy too much space, making it look cluttered, and the protruding portion is prone to accumulating grease and other stains, making cleaning more difficult. In summary, the design of embedding the air blowing device 100 into the cooktop surface makes the cooktop W's surface simpler and tidier, and also simplifies routine cleaning and maintenance.

[0034] In some implementations, such as Figure 2 , Figure 4 , Figure 5As shown, the air blowing device 100 includes a main body 11 and a closure 12. An air outlet channel 111 is provided on the main body 11. The closure 12 is movably connected to the main body 11, and can move from an open state to a closed state relative to the main body 11 to control the opening and closing of the air outlet channel 111. In practical applications, a torsion spring is provided between the closure 12 and the main body 11. The closure 12 remains closed under the action of the torsion spring. When the air blowing device 100 is working, under the action of the internal air pressure of the air blowing device 100, the closure 12 is forced open by the airflow to the open state, allowing the airflow to be smoothly blown out from the air outlet channel 111. When the air blowing device 100 is closed, the closure 12 returns to the closed state under the action of the torsion spring to close the air outlet channel 111. With the above design, when no airflow is being blown out of the air outlet 111, particles, crawling insects and other objects in the external environment can easily enter the air blowing device 100 through the air outlet 111, which may cause some hidden dangers to the air blowing device 100. By closing the air outlet 111 with the closure 12 when no airflow is flowing out of the air outlet 111, the entry of particles, crawling insects and other objects in the external environment into the air blowing device 100 can be effectively prevented, thus playing a good protective role for the air blowing device 100.

[0035] In some implementations, such as Figure 2 , Figure 4 , Figure 5 As shown, the main body 11 has an air chamber 112 inside. When the closure 12 is in the open state, the air chamber 112 is connected to the air outlet channel 111. When the closure 12 is in the closed state, the air chamber 112 is disconnected from the air outlet channel 111. The blowing device 100 also includes a first fan, the air outlet of which is connected to the air chamber 112. The air chamber 112 is a uniformly extended cavity inside the main body 11. The airflow generated by the fan first enters the air chamber 112, which can play a role in uniformly distributing air pressure. Since the air outlet channel 111 is relatively long and narrow, the gas flow velocity in different parts is prone to be different, which makes the generated air curtain unstable and affects the effect of isolating oil fumes. The air chamber 112 can balance the air pressure, so that the gas flow velocity in different parts of the air outlet channel 111 is more similar, and the generated air curtain is smoother and more stable. A smooth and stable air curtain can better isolate oil fumes and protect the wall from oil fume pollution.

[0036] In some implementations, such as Figure 2 , Figure 4 , Figure 5As shown, the aforementioned closure 12 includes a rotating part 121 and a supporting part 122. The rotating part 121 is rotatably connected to the main body 11, and the supporting part 122 is connected to the rotating part 121. The air outlet channel 111 is provided with a stepped part 01. When the closure 12 is in the closed state, the supporting part 122 and the stepped part 01 seal against each other to close the air outlet channel 111. When the closure 12 is in the open state, the supporting part 122 and the stepped part 01 disengage to allow the air outlet channel 111 to communicate with the air chamber 112. A torsion spring can be provided between the rotating part 121 and the main body 11 to allow the closing member 12 to rotate elastically. The length of the supporting part 122 is the same as the width of the air outlet channel 111, and the structure involved in the supporting closure method is simple. Since the air outlet channel 111 is very wide, the radial length of the closing member 12 is relatively long, which makes the closing member 12 prone to deformation due to its own weight, thus affecting the sealing effect on the air outlet channel 111. In order to reduce the deformation of the closing member 12, the closing member 12 can be made of a material with high hardness and not easily deformed, such as glass. Preferably, the closing member 12 is made of glass. Glass is inexpensive, has a smooth surface, and is not easily worn. The smooth surface causes less disturbance to the airflow, which is conducive to maintaining the stability of the airflow and thus conducive to forming a smooth and stable air curtain.

[0037] In some embodiments, an elastic element is provided at the movable connection between the closure member 12 and the main body 11. The elastic element is used to drive the supporting part 122 to elastically seal against the stepped part 01. The elastic element may be a torsion spring.

[0038] In some implementations, such as Figure 2 , Figure 4 , Figure 5 As shown, the outlet end of the air outlet duct 111 has a smooth arc-shaped structure, and the tangential curvature of the arc-shaped structure is designed to be tangent to the wall S. The transition of airflow through the arc-shaped structure can reduce the generation of turbulence, making the generated air curtain more stable, and thus more effectively protecting the wall S from oil fume pollution.

[0039] In some implementations, such as Figure 2 , Figure 3 As shown, along the extension direction of the air outlet 111, both ends of the air outlet 111 are used to protrude from both sides of the stove W, so that the width of the air curtain formed is greater than the width of the stove W in order to protect the wall surface over a larger area.

[0040] In some implementations, such as Figure 2 , Figure 3As shown, the aforementioned extraction device 200 includes a power assembly 21 and a suction hood 22. The suction hood 22 is connected to the power assembly 21 and is positioned opposite to the stove W and the air blowing device 100. A collecting port is provided on the side of the suction hood 22 near the air blowing device 100, and the collecting port is used to cover the air outlet channel 111 on the surface of the stove W. A fan is installed inside the power assembly 21 for extraction, and the suction hood 22 can conveniently collect the airflow containing oil fumes for extraction by the power assembly 21.

[0041] In other implementations, such as Figure 2 , Figure 3 As shown, the side of the suction hood 22 closest to the wall is in contact with the wall, and the edge is tangent to the wall. This design has a good guiding effect on the airflow in contact with the wall, which makes it easier for the airflow generated by the blowing device 100 to bring the oil fumes into the suction hood 22 so that they can be drawn away by the power component 21.

[0042] 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.

[0043] 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.

[0044] 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 blowing device (100) is provided with an air outlet channel (111) for the outflow of airflow; An air extraction device (200) is provided opposite to the air blowing device (100); The blowing device (100) is used to generate airflow along the plane of the wall (S) to form an air curtain to isolate the oil fumes from the wall, and the extraction device (200) is used to extract the oil fumes.

2. The range hood according to claim 1, characterized in that, The air blowing device (100) is used to be installed on the wall (S) and is used to press and adhere to the wall (S).

3. The range hood according to claim 1, characterized in that, The air blowing device (100) is at least partially embedded in the stovetop (W).

4. The range hood according to claim 1, characterized in that, The air blowing device (100) includes a main body (11) and a closure (12). The main body (11) has an air outlet channel (111). The closure (12) is movably connected to the main body (11). The closure (12) can move from an open state to a closed state relative to the main body (11) to control the opening and closing of the air outlet channel (111).

5. The range hood according to claim 4, characterized in that, The main body (11) has an air cavity (112) inside. When the closing member (12) is in the open state, the air cavity (112) is connected to the air outlet channel (111). When the closing member (12) is in the closed state, the air cavity (112) is disconnected from the air outlet channel (111). The air blowing device (100) further includes a first fan, the air outlet of which is connected to the air chamber (112).

6. The range hood according to claim 5, characterized in that, The closure (12) includes a rotating part (121) and a supporting part (122). The rotating part (121) is rotatably connected to the main body (11), and the supporting part (122) is connected to the rotating part (121). The air outlet channel (111) is provided with a stepped portion (01). When the closing member (12) is in the closed state, the supporting portion (122) and the stepped portion (01) seal against each other to close the air outlet channel (111). When the closing member (12) is in the open state, the supporting portion (122) and the stepped portion (01) disengage to allow the air outlet channel (111) to communicate with the air chamber (112).

7. The range hood according to claim 6, characterized in that, An elastic element is provided at the movable connection between the closure member (12) and the main body (11), and the elastic element is used to drive the abutment part (122) to elastically seal and abut against the step part (01).

8. The range hood according to claim 1, characterized in that, The outlet end of the air outlet duct (111) is a smooth arc surface structure, and the tangential curvature of the arc surface structure is used to be tangent to the wall (S).

9. The range hood according to claim 1, characterized in that, Along the extension direction of the air outlet channel (111), both ends of the air outlet channel (111) are used to protrude from both sides of the stove (W).

10. 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 arranged opposite to the stove (W) and the blowing device (100); The suction hood (22) has a collection port on the side near the blowing device (100), and the collection port is used to cover the air outlet channel (111) by projection on the stove (W) plane.

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