Baffle structure and range hood

Abstract

The baffle structure comprises two outer flow guide parts, first ends of the two outer flow guide parts are arranged on a range hood body in a spaced mode in the first direction, an air inlet of the range hood body is located between the two outer flow guide parts, and an air gathering opening is defined between the second ends, away from the range hood body, of the two outer flow guide parts; and the first driving part controllably drives the at least one outer flow guide part to move relative to the range hood body so as to change the width of the wind gathering opening in the first direction. When a user cooks stir-frying, the outer flow guide part is driven to move so as to control the air gathering opening to be enlarged, so that the oil fume capturing capacity is improved, and the situation that oil fume escapes into kitchen air and influences the environment and health of a kitchen is reduced. And when the user cooks soup or performs common dish frying, the air gathering opening can be controlled to be smaller, so that the suction force of the air inlet can be concentrated, the resistance of airflow is reduced, the oil-smoke separation effect is improved, and smoke exhaust is smoother.

Description

Technical Field

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

[0002] Range hoods are essential equipment in modern kitchens, their core function being to extract cooking fumes. Most current range hoods are equipped with baffles to prevent the spread of these fumes. However, in actual use, different cooking methods (such as frying, stir-frying, boiling, and steaming) produce varying amounts of fumes and follow different paths. Baffles can only effectively capture fumes from certain cooking methods; for others, the fume capture efficiency is low, allowing some fumes to escape into the kitchen air, affecting the kitchen environment and health. Summary of the Invention

[0003] Therefore, it is necessary to provide a baffle structure and a range hood that can only effectively capture oil fumes for certain cooking methods, while other methods suffer from low oil fume capture efficiency.

[0004] A baffle structure, the baffle structure comprising:

[0005] Two external guide components are provided at their first ends along a first direction on the main body of the range hood. The air inlet of the main body of the range hood is located between the two external guide components. An air-gathering opening is defined between the second ends of the two external guide components that are away from the main body of the range hood.

[0006] A first driving member can controllably drive at least one of the external guide members to move relative to the smoke machine body to change the width of the air-gathering opening in the first direction.

[0007] In one embodiment, the first end of each of the external guide members is rotatably disposed on the smoke machine body about a rotation axis, and the rotation axis intersects the first direction;

[0008] During rotation, the second end of each of the external guide members can move closer to or further away from the other external guide member.

[0009] In one embodiment, the two rotation axes corresponding to the two external guides are arranged in parallel.

[0010] In one embodiment, the baffle structure further includes two rotating rollers, which are spaced apart on the smoke machine body along the first direction, and the first end of each of the external guide members is disposed on the rotating rollers;

[0011] The first driving element includes two components, which are connected to the two rotating rollers. Each first driving element is used to drive the corresponding rotating roller to rotate around its own axis.

[0012] In one embodiment, the first drive unit is communicatively connected to the oil fume concentration sensor inside the range hood body, and when the oil fume concentration sensor detects an increase in oil fume concentration, the first drive unit controls at least one of the external guide components to move and increases the width of the air-gathering opening;

[0013] And / or, when the oil fume concentration sensor detects a decrease in oil fume concentration, the first drive unit controls at least one of the external guide members to move and reduces the width of the air-gathering opening.

[0014] A range hood includes a range hood body and a baffle structure as described in any of the preceding claims.

[0015] In one embodiment, the smoke hood body includes an air guide channel connected to the air inlet, and the inner wall of the air guide channel is provided with a plurality of inner guide elements, all of which are arranged at intervals along the first direction.

[0016] In one embodiment, one end of each inner guide member disposed on the inner wall of the air guide channel is swaying relative to the smoke machine body about a swing axis, and the swing axis is arranged parallel to the extension direction of the air guide channel on the inner wall of the inner guide member;

[0017] During the oscillation process, the inner guide includes a guiding position and an avoidance position. When the inner guide is in the guiding position, it is perpendicular to the inner wall of the air guide channel. When the inner guide is in the avoidance position, it is in contact with the inner wall of the air guide channel.

[0018] In one embodiment, the range hood further includes a second drive member for driving at least one of the inner guide members to oscillate;

[0019] The first driving member and the second driving member are communicatively connected. When the first driving member drives the outer guide member to move until the width of the wind-gathering opening in the first direction increases, the second driving member drives the inner guide member to move from the avoidance position to the guide position.

[0020] And / or, as the first driving member drives the outer guide member to move to the point where the width of the air-gathering opening in the first direction decreases, the second driving member drives the inner guide member to move from the guiding position to the avoidance position.

[0021] In one embodiment, the inner guide includes an inner guide body, a mounting plate, a rotating plate, and a rotating shaft. The mounting plate is installed on the inner wall of the air guide channel, the rotating plate is rotatably mounted on the mounting plate via the rotating shaft, and the inner guide body is mounted on the rotating plate.

[0022] The aforementioned baffle structure, with two external guide vanes spaced apart on the range hood body, can gather the cooking fumes located on both sides of the range hood and gradually draw them into the air inlet between the two external guide vanes, thereby reducing the diffusion of cooking fumes and improving the user's cooking experience. Furthermore, the first drive unit can move the external guide vanes to adjust the size of the air-gathering opening, thus improving the range hood's smoke extraction or exhaust effect to suit different cooking methods. Specifically, when the user is stir-frying, the external guide vanes can be driven to increase the size of the air-gathering opening, increasing the ability to capture cooking fumes and reducing the escape of fumes into the kitchen air, thus minimizing their impact on the kitchen environment and health. Conversely, when the user is simmering soup or stir-frying, the air-gathering opening can be reduced to concentrate the suction power of the air inlet, reducing airflow resistance, improving the oil-fume separation effect, and making exhaust smoother. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the range hood in some embodiments of this application.

[0024] Figure 2 for Figure 1 The internal structure diagram of the range hood in the embodiment.

[0025] Figure 3 for Figure 1 A schematic diagram of the included angle formed by the two guide elements in the embodiment.

[0026] Figure 4 for Figure 1 A side view of the baffle structure of the range hood in the embodiment.

[0027] Figure 5 for Figure 1 A schematic diagram of the baffle structure in the embodiment.

[0028] Figure 6 for Figure 1 A schematic diagram of the range hood in the embodiment from another perspective.

[0029] Figure 7 for Figure 6 A schematic diagram of the flow guide in the embodiment.

[0030] Explanation of reference numerals in the attached figures:

[0031] External guide 100; first end 101; second end 102; air-gathering opening 110; first drive component 120; rotating roller 132;

[0032] Range hood body 200; air inlet 210; air guide duct 220; inner guide component 230; inner guide body 241; mounting plate 242; rotating plate 243; rotating shaft 244;

[0033] First direction X. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] See Figure 1 and Figure 2 , Figure 1 The diagram shows a schematic of the structure of a range hood in one embodiment of this application. The range hood provided in one embodiment of this application includes a range hood body and a baffle structure. An air inlet 210 is provided on the range hood body, and a fan wheel and a volute are also provided inside the range hood body 200. The fan wheel is used to generate negative pressure inside the range hood body. The negative pressure acts on the air inlet 210 so that external oil fumes can be drawn into the air inlet 210. The oil fumes are separated in the volute. The separated grease is collected in the oil cup of the range hood body, and the smoke is discharged from the range hood through the fan wheel.

[0041] See Figure 2 and Figure 3The baffle structure is disposed on the main body of the range hood and includes two external guide members 100. Each external guide member 100 has a first end 101 and a second end 102 opposite to each other. The first ends 101 of the two external guide members 100 are spaced apart on the main body 200 along the first direction X. The air inlet 210 of the main body 200 is located between the two external guide members 100. An air inlet opening is defined between the second ends 102 of the two external guide members 100 away from the main body 200. The first drive member 120 is drively connected to at least one external guide member 100 and can controllably drive at least one external guide member 100 to move relative to the main body 200 to change the width of the air gathering opening 110 in the first direction X.

[0042] When a user is cooking, the fumes they produce spread outwards. Even with the negative pressure generated by the air inlet 210 to absorb the fumes, some fumes at the edges of the range hood cannot be drawn in and continue to spread. However, by using external guide vanes 100 located on both sides of the range hood body 200, these vanes can gather the fumes located on both sides of the range hood. The gathered fumes remain between the two external guide vanes 100 and are gradually absorbed by the air inlet 210 between them, thus reducing the spread of fumes during cooking and improving the user's cooking experience.

[0043] In actual use, the diffusion speed of cooking fumes varies depending on the concentration and temperature of the fumes during different cooking methods. For example, fumes diffuse quickly during stir-frying and slowly during stewing. When fumes diffuse quickly, they are more likely to reach the vicinity of the range hood. However, when fumes diffuse slowly, if the air-gathering opening 110 between the two external air guides 100 is too large, the suction power of the air inlet 210 will be dispersed, resulting in a slow airflow and affecting subsequent fume separation or exhaust performance.

[0044] Based on this, during the process of the two external guide members 100 gathering the fumes, at least one external guide member 100 can be controlled to move relative to the range hood body 200 by the first driving member 120. This allows control over the size of the air-gathering opening 110, and by controlling the size of the air-gathering opening 110, the range of fumes gathered by the two external guide members 100 can be controlled. Specifically, when the control member moves the external guide members 100 to increase the width of the air-gathering opening 110 in the first direction X, the two external guide members 100 can gather a larger area of ​​fumes, thereby increasing the capture of fumes when the concentration is high. Conversely, when the control member moves the external guide members 100 to decrease the width of the air-gathering opening 110 in the first direction X, the two external guide members 100 can gather a smaller area of ​​fumes, thereby concentrating the suction at the air inlet 210 and reducing airflow resistance.

[0045] In actual use, depending on the cooking method, the first drive component 120 can drive the outer guide component 100 to adjust the size of the air-gathering opening 110, thereby improving the smoke extraction or exhaust effect of the range hood to suit different cooking methods. Specifically, when the user is stir-frying, the oil fume concentration is high, the oil fume temperature is high, and the oil fume diffuses quickly, spreading to a large area in a short time. At this time, the outer guide component 100 can be driven to control the air-gathering opening 110 to enlarge, allowing the two outer guide components 100 to gather oil fumes over a larger area, thereby increasing the oil fume capture capability. When the user is simmering soup or stir-frying, the oil fume concentration is low, and the oil fume diffuses slowly. The outer guide component 100 can be driven to control the air-gathering opening 110 to shrink, allowing the suction power of the air inlet 210 to be concentrated, reducing airflow resistance, thereby improving the oil fume separation effect and making the exhaust smoother.

[0046] The aforementioned baffle structure, with two external guide vanes 100 spaced apart on the range hood body 200, can gather the oil fumes located on both sides of the range hood and gradually absorb them through the air inlet 210 between the two external guide vanes 100, thereby reducing the diffusion of oil fumes during cooking and improving the user's cooking experience. Furthermore, the first drive component 120 can drive the external guide vanes 100 to move and adjust the size of the air-gathering opening 110, thereby improving the smoke extraction or exhaust effect of the range hood to suit different cooking methods. Specifically, when the user is stir-frying, the external guide vanes can be driven to move and control the air-gathering opening 110 to enlarge, increasing the ability to capture oil fumes and reducing the escape of oil fumes into the kitchen air, thus affecting the kitchen environment and health. When the user is simmering soup or cooking ordinary dishes, the air-gathering opening 110 can be controlled to shrink, allowing the suction power of the air inlet 210 to be concentrated, reducing airflow resistance, improving the oil fume separation effect, and making exhaust smoother.

[0047] It should be noted that the first driving member 120 is connected to at least one external guide member 100 and can controllably drive at least one external guide member 100 to move relative to the smoke hood body 200. This means that the first driving member 120 can drive only one external guide member 100 to move, and by driving this external guide member 100 closer to or further away from another external guide member 100, the width of the air-gathering opening 110 can be changed. In some other embodiments, the first driving member 120 can also drive two external guide members 100 to move simultaneously, so that the two external guide members 120 can move closer to or further away from each other, thereby changing the width of the air-gathering opening 110.

[0048] In some embodiments of this application, the first end 101 of each external guide 100 is rotatably disposed on the smoke machine body 200, and the axis of rotation intersects both the first direction X and the axis of the air inlet 210. During rotation, the second end 102 of each external guide 100 can move closer to or further away from the other external guide 100. Thus, when the two external guides 100 are rotated so that they move closer to each other, the width of the air-gathering opening 110 can be reduced; conversely, when the external guides 100 are rotated so that they move further apart, the width of the air-gathering opening 110 can be increased.

[0049] In other embodiments, the outer guide member 100 can also move in the first direction X to achieve the mutual approach or distance between the two outer guide members 100. Specifically, Figure 1 In the middle, the first direction X is the horizontal direction. The two external guides 100 move closer or further away along the horizontal direction, which can reduce or increase the width of the wind-gathering opening 110.

[0050] In some embodiments, see Figure 3 The two external guide members 100 are arranged with their corresponding rotation axes parallel, allowing them to be symmetrically arranged along a symmetrical plane. The included angle θ formed by the extensions of the two external guide members 100 indicates that the larger θ is, the wider the air-gathering opening 110 is, and the smaller θ is, the smaller the width of the air-gathering opening 110 is. Furthermore, due to... Figure 3 It can be seen that during the rotation of the two external guide members 100, the distance between the first ends 101 of the two external guide members 100 in the first direction X remains fixed, thereby avoiding the external guide members 100 from affecting the smoke extraction effect of the air inlet 210 during the rotation. In some other embodiments, the two rotation axes corresponding to the two external guide members 100 can also be arranged to intersect, that is, the two rotation axes present a figure-eight shape.

[0051] Specifically, in some embodiments, see [link to relevant documentation]. Figure 4 and Figure 5The baffle structure also includes two rotating rollers 132, which are spaced apart on the smoke machine body 200 along the first direction X. The first end 101 of each external guide 100 is located on the rotating roller 132. There are two first driving members 120, which are connected to the two rotating rollers 132. Each first driving member 120 drives the corresponding rotating roller 132 to rotate around its own axis. In actual use, each first driving member 120 is communicatively connected to the control module on the smoke machine body 200. The control module controls the two first driving members 120 to rotate according to the user settings, thereby causing the two first driving members 120 to drive the two rotating rollers 132 to rotate. This allows the two external guides 100 to move closer or further apart, thereby reducing or increasing the width of the air-gathering opening 110.

[0052] It is understood that in some other embodiments, the baffle structure may also include a transmission assembly. Only one first drive element 120 is included, which is directly connected to one of the rotating rollers 132 and connected to the other rotating roller 132 via the transmission assembly. Thus, one first drive element 120, in conjunction with the transmission assembly, drives the two rotating rollers 132 to rotate synchronously, thereby enabling the two outer guide elements 100 to move closer or further apart. Optionally, the first drive element 120 may be a servo motor.

[0053] In some embodiments of this application, the first driving member 120 is communicatively connected to the oil fume concentration sensor inside the range hood body 200. When the oil fume concentration sensor detects an increase in oil fume concentration, the first driving member 120 controls at least one external guide member 100 to move and increases the width of the air-gathering opening 110. When the oil fume concentration sensor detects a decrease in oil fume concentration, the first driving member 120 controls at least one external guide member 100 to move and decreases the width of the air-gathering opening 110.

[0054] In actual use, when the user is stir-frying, the smoke concentration sensor detects an increase in the concentration of oil fumes. The control module of the range hood body 200 then controls the two first drive components 120 to drive the two rotating rollers 132 to rotate, and causes the two external guide components 100 to move away from each other, thereby controlling the air gathering opening 110 to enlarge. This allows the two external guide components 100 to gather oil fumes over a larger area, thereby increasing the ability to capture oil fumes.

[0055] When the user is making soup or stir-frying, the smoke concentration sensor detects a decrease in the concentration of oil fumes. The control module of the range hood body 200 then controls the two first drive components 120 to drive the two rotating rollers 132 to rotate, and causes the two external guide components 100 to move closer to each other. This controls the air-gathering opening 110 to become smaller, so that the suction of the air inlet 210 can be concentrated, reducing airflow resistance, thereby improving the oil fume separation effect and making the exhaust more smooth.

[0056] Thus, by communicating with the smoke sensor inside the range hood body, the range hood can automatically adjust the size of the air-gathering opening 110 according to the concentration of cooking fumes in the external environment, enabling the range hood to automatically adjust the corresponding mode for different cooking methods. It is understood that in some other embodiments, the user can also manually adjust the range hood mode, i.e., the user controls the size of the air-gathering opening 110.

[0057] In some embodiments of this application, the length of each external guide 100 in the axial direction of the air inlet 210 gradually decreases along the direction of the rotation axis, resulting in an external guide 100 having a structure that is longer at one end and shorter at the other. In actual use, the longer end of the external guide 100 is positioned above the shorter end. Since oil fumes tend to rise, the upper length of the external guide 100 is set to be longer, so that the two external guides 100 can better gather the oil fumes above. The lower part, being closer to the air inlet 210, has its length angle set to ensure the smoke extraction effect of the air inlet 210.

[0058] In some embodiments of this application, each outer guide 100 is transparent, allowing the user to observe the cooking process of food between the two outer guides 100. It is understood that in other embodiments, only one outer guide 100 may be transparent; this is not a limitation.

[0059] In some embodiments of this application, see [reference] Figure 2 and Figure 6 The range hood body 200 also includes an air guide channel 220 connected to the air inlet 210. The air guide channel 220 connects the air inlet 210 and the volute of the range hood body 200, so that the oil fumes entering the air inlet 210 can enter the volute through the air guide channel 220 and be separated into oil fumes within the volute. The inner wall of the air guide channel 220 is provided with multiple protruding internal guide elements 230, all of which are spaced apart along the first direction X.

[0060] In actual use, the oil fume airflow entering from the air inlet 210 will collide with the inner wall of the air guide channel 220, thus forming turbulence. At this time, through the multiple inner guides 230 set on the inner wall of the air guide channel 220, the inner guides 230 can guide the oil fume airflow, so that the oil fume airflow will move stably along the air guide channel 220, reducing the generation of turbulence and helping to improve the suction power of the air inlet 210.

[0061] In some embodiments, one end of each inner guide member 230 disposed on the inner wall of the air guide channel 220 is swayable relative to the smoke hood body 200 about a swing axis, the swing axis being parallel to the extension direction of the inner wall of the air guide channel 220 at the inner guide member 230. During the swinging process, the inner guide member 230 includes a guiding position and a clearance position. When the inner guide member 230 is in the guiding position, the inner guide member 230 is perpendicular to the inner wall of the air guide channel 220. When the inner guide member 230 is in the clearance position, the inner guide member 230 is in contact with the inner wall of the air guide channel 220.

[0062] In this way, the range hood can control the internal guide component 230 to switch between the guiding position and the avoidance position according to the actual air volume and oil fume concentration. When the internal guide component 230 is in the guiding position, the vertically installed internal guide component 230 can guide the oil fumes in the air guide channel 220, which helps to improve the smoothness of the oil fume movement within the air guide channel 220. When the internal guide component 230 is in the avoidance position, it can be fitted against the surface of the air guide channel 220 to reduce the resistance to the movement of oil fumes within the air guide channel 220, thereby increasing the flow rate of oil fumes, which in turn improves the subsequent oil fume separation effect and facilitates the exhaust of oil fumes.

[0063] In some specific embodiments, the range hood also includes a second driving component, which is used to drive at least one inner guide component 230 to swing. In actual use, the number of the second driving component can be selected according to the actual use requirements. One driving component can drive multiple inner guide components 230 to swing, or one driving component can drive one inner guide component 230 to swing.

[0064] The first driving component 120 and the second driving component are communicatively connected. When the first driving component 120 drives the outer guide component 100 to move until the width of the air-gathering opening 110 in the first direction X increases, the second driving component drives the inner guide component 230 to move from the avoidance position to the guiding position. Specifically, when the user is stir-frying, the outer guide component is driven to move to control the air-gathering opening to increase the capture capacity of oil fumes. However, while increasing the capture of oil fumes, it also increases the turbulence in the air guide channel 220. At this time, controlling the guide component 230 to move from the avoidance position to the guiding position allows the oil fumes to be guided through the guide component 230, reducing turbulence and improving the smoothness of the movement of oil fumes in the air guide channel 220.

[0065] Furthermore, as the first driving member 120 drives the outer guide member 100 to move until the width of the air-gathering opening 110 in the first direction X decreases, the second driving member drives the inner guide member 230 to move from the guiding position to the avoidance position. Specifically, when the user is making soup or stir-frying, the air-gathering opening can be controlled to become smaller, so that the suction of the air inlet can be concentrated, reducing airflow resistance. At the same time, since there is less oil smoke, there is less turbulence in the air guide channel 220. At this time, the inner guide member 230 is controlled to move from the guiding position to the avoidance position, further reducing the resistance of oil smoke moving in the air guide channel 220, so as to improve the subsequent oil smoke separation effect and facilitate the exhaust of oil smoke.

[0066] Specifically, in some embodiments, see [link to relevant documentation]. Figure 7 The inner guide component 23 includes an inner guide body 240, a mounting plate 242, a rotating plate 243, and a rotating shaft 244. The mounting plate 242 is installed on the inner wall of the air guide channel 220. The rotating plate 243 is rotatably mounted on the mounting plate 242 via the rotating shaft 244. The inner guide body 240 is mounted on the rotating plate 243, allowing the rotating plate 243 to rotate relative to the mounting plate 242 via the rotating shaft 244. The aforementioned second drive component can be directly connected to the rotating shaft 244 to drive the inner guide body 240 to swing, or it can be connected to the rotating shaft 244 of multiple inner guide components 23 simultaneously via a linkage or other structure, thereby driving multiple inner guide components 23 to swing simultaneously through one second drive component.

[0067] The above-mentioned baffle structure has at least the following advantages:

[0068] Two external guide vanes 100, spaced apart on the range hood body 200, can gather the fumes located on both sides of the range hood and gradually draw them into the air inlet 210 between the two external guide vanes 100, thereby reducing the diffusion of fumes during cooking and improving the user's cooking experience. Furthermore, the first drive unit 120 can drive the external guide vanes 100 to adjust the size of the air-gathering opening 110, thus improving the smoke extraction or exhaust effect of the range hood to suit different cooking methods. Specifically, when the user is stir-frying, the external guide vanes 100 can be driven to enlarge the air-gathering opening 110, increasing the ability to capture fumes and reducing the escape of fumes into the kitchen air, thus protecting the kitchen environment and health. When the user is simmering soup or cooking regular dishes, the air-gathering opening 110 can be reduced to concentrate the suction power of the air inlet 210, reducing airflow resistance, improving the oil-fume separation effect, and making exhaust smoother.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A baffle structure, characterized in that, The baffle structure includes: Two external guides (100) are provided at their first ends (101) along a first direction (X) on the smoke hood body (200). The air inlet (210) of the smoke hood body (200) is located between the two external guides (100). A converging opening (110) is defined between the second ends (102) of the two external guides (100) away from the smoke hood body (200). The first drive member (120) can controllably drive at least one of the external guide members (100) to move relative to the smoke machine body (200) to change the width of the air-gathering opening (110) in the first direction (X).

2. The baffle structure according to claim 1, characterized in that, The first end (101) of each of the external guide members (100) is rotatably disposed on the smoke machine body (200) about a rotation axis, and the rotation axis intersects the first direction (X); During rotation, the second end (102) of each of the external guides (100) can move closer to or further away from the other external guide (100).

3. The baffle structure according to claim 2, characterized in that, The two rotation axes corresponding to the two external guides (100) are arranged in parallel.

4. The baffle structure according to claim 2, characterized in that, The baffle structure also includes two rotating rollers (132), which are arranged at intervals along the first direction (X) on the smoke machine body (200), and the first end (101) of each of the external guides (100) is located on the rotating roller (132). The first drive member (120) includes two, and the two first drive members (120) are connected to the two rollers (132). Each first drive member (120) is used to drive the corresponding roller (132) to rotate around its own axis.

5. The baffle structure according to claim 1, characterized in that, The first driving member (120) is communicatively connected to the oil fume concentration sensor inside the smoke machine body (200), and when the oil fume concentration sensor detects an increase in oil fume concentration, the first driving member (120) controls at least one of the external guide members (100) to move and increases the width of the wind-gathering opening (110); And / or, when the oil fume concentration sensor detects a decrease in oil fume concentration, the first drive member (120) controls at least one of the external guide members (100) to move and reduces the width of the air-gathering opening (110).

6. A range hood, characterized in that, It includes the range hood body (200) and the baffle structure as described in any one of claims 1-5.

7. The range hood according to claim 6, characterized in that, The main body of the smoke hood (200) includes an air guide channel (220) connected to the air inlet (210). The inner wall of the air guide channel (220) is provided with a plurality of inner guide elements (230), and all the inner guide elements (230) are arranged at intervals along the first direction (X).

8. The range hood according to claim 7, characterized in that, Each of the inner guide members (230) is located at one end of the inner wall of the air guide channel (220) and can swing relative to the smoke machine body (200) around a swing axis. The swing axis is arranged parallel to the extension direction of the inner wall of the air guide channel (220) at the inner guide member (230). The inner guide (230) includes a guiding position and an avoidance position during the swinging process. When the inner guide (230) is in the guiding position, the inner guide (230) is perpendicular to the inner wall of the air guide channel (220). When the inner guide (230) is in the avoidance position, the inner guide (230) is attached to the inner wall of the air guide channel (220).

9. The range hood according to claim 8, characterized in that, The range hood also includes a second driving component, which is used to drive at least one of the inner guide members (230) to swing. The first driving member (120) and the second driving member are communicatively connected. When the first driving member (120) drives the outer guide member (100) to move to the point where the width of the wind-gathering opening (110) in the first direction (X) increases, the second driving member drives the inner guide member (230) to move from the avoidance position to the guide position. And / or, as the first drive member (120) drives the outer guide member (100) to move to the point where the width of the wind-gathering opening (110) in the first direction (X) decreases, the second drive member drives the inner guide member (230) to move from the guide position to the avoidance position.

10. The range hood according to claim 8, characterized in that, The inner guide (230) includes an inner guide body (240), a mounting plate (242), a rotating plate (243), and a rotating shaft (244). The mounting plate (242) is installed on the inner wall of the air guide channel (220). The rotating plate (243) is rotatably mounted on the mounting plate (242) via the rotating shaft (244). The inner guide body (240) is mounted on the rotating plate (243).

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