Fan module and range hood

Abstract

The utility model relates to a fan module and a range hood, and the fan module comprises an air outlet main body which is provided with an air cavity and an air outlet communicated with the air cavity; the air outlet piece is arranged in the air cavity and used for conveying airflow to the air outlet; the air sweeping blade is rotatably arranged in the air cavity and adjacent to the air outlet, and the air sweeping blade (14) is provided with an arc-shaped air sweeping face facing the interior of the air cavity; the flow guide part is arranged in the air cavity, and the bottom face, facing the air sweeping blades, of the flow guide part is arranged to be an inclined face avoiding the air sweeping path of the air sweeping blades. According to the air sweeping device, firstly, the arc-shaped air sweeping face can enable the air sweeping angle to be larger, and therefore the requirements of users with different heights are met; and secondly, the bottom surface of the flow guide part is obliquely arranged, so that a larger space can be formed in the air cavity to accommodate the arc-shaped air sweeping blades, and therefore, the air sweeping range can be expanded through the structural characteristics of the air sweeping blades, the probability of direct blowing to the head of the user is reduced, and the experience feeling of the user is improved.

Description

Technical Field

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

[0002] Range hoods are now a common household appliance in modern kitchens, effectively absorbing cooking fumes and preventing environmental pollution that could harm health. However, they are not very effective at managing the high temperatures experienced during cooking, leading to discomfort for users. Therefore, fans or air conditioners are often incorporated into the design of range hoods to provide cooling.

[0003] However, installing air conditioning in range hoods currently increases overall costs and complicates installation. Furthermore, the fans within range hoods can easily affect the stove flame during operation, have a limited airflow angle affecting the sweeping effect, and can blow air directly onto the user's head, negatively impacting the user experience. Utility Model Content

[0004] Therefore, it is necessary to provide a fan module and a range hood to address the problem of poor airflow performance of current range hood fans.

[0005] In a first aspect, this application provides a fan module for use in a range hood, the fan module comprising:

[0006] The air outlet body has an internal air cavity, and an air outlet communicating with the air cavity is opened on the air outlet body in the horizontal direction;

[0007] An air outlet is disposed within the air cavity and is used to deliver airflow to the air outlet;

[0008] A sweeping blade is rotatably disposed within the air cavity and adjacent to the air outlet; the sweeping blade has an arc-shaped sweeping surface facing the interior of the air cavity; and

[0009] A flow guide is disposed within the air cavity, and the bottom surface facing the sweeping blade is configured as an inclined surface that avoids the sweeping path of the sweeping blade.

[0010] Therefore, the curved sweeping surface allows the sweeping blades to have a larger sweeping angle. At the same time, the bottom surface of the guide is tilted so that the sweeping blades can be better housed below the bottom surface of the guide. Through the structural characteristics of the sweeping blades themselves, the sweeping range can be expanded, reducing the probability of direct airflow onto the user's head, thereby improving the user experience.

[0011] In some embodiments, the guide member is inclined upward relative to the horizontal direction toward the bottom surface of the sweeping blade, and the guide member, the cavity wall of the air chamber, and the air outlet together define a receiving space for accommodating the sweeping blade.

[0012] Therefore, the bottom surface of the guide is inclined upwards, which provides a larger space for the arc-shaped sweeping blades without affecting the air outlet. The inclined surface can also guide the airflow, allowing the airflow to be better delivered from the air outlet through the sweeping blades.

[0013] In some embodiments, the sweeping blade is rotatably disposed in the receiving space and has a sweeping state in which it extends at least partially out of the air outlet. The sweeping blade includes at least two blades. In the sweeping state, each blade is spaced apart in a vertical direction to form an air duct between each pair of adjacent blades that connects the air cavity and the air outlet.

[0014] Therefore, by setting at least two blades with intervals between them, multiple air ducts can be formed at the air outlet. The rotation and coordination between the blades can change the air delivery direction of each air duct, thereby further expanding the air delivery range of the fan module and enabling the fan module to better meet the usage requirements.

[0015] In some embodiments, the blades are all arc-shaped blades.

[0016] First, the angled design of the guide vane creates a larger space between its bottom surface and the air chamber and outlet, allowing for better accommodation of the curved blades. Second, the curved blades have a longer cross-sectional length, which improves the sweeping effect. Third, when the curved blades reach their lowest point, the sweeping height can be further reduced, resulting in a wider sweeping range. For taller users, the lower sweeping height effectively avoids direct airflow onto their heads. Therefore, by using curved blades for the sweeping action, the sweeping effect can be effectively improved, the sweeping range can be further expanded, and the user experience can be enhanced.

[0017] In some embodiments, the sweeping blades also have a closed state housed within the receiving space, and when the sweeping blades are in the closed state, each blade flips into the interior of the air outlet body.

[0018] With the above structure, not only can the sweeping blades be well housed in the receiving space when closed, but also when in the sweeping state, at least part of the sweeping blades extend out of the air outlet, which can further increase the sweeping capacity and further reduce the sweeping height.

[0019] In some embodiments, the sweeping blade includes a first blade and a second blade. When the first blade and the second blade are in the sweeping state, the first blade is located above the second blade in the vertical direction; wherein the length of the first blade is greater than the length of the second blade.

[0020] By setting the first and second blades, not only can the air sweeping be achieved smoothly, but the airflow can also be effectively prevented from being blocked, ensuring the air volume and making the cooling effect of the fan module better.

[0021] In some embodiments, the first blade is an arc-shaped blade, and the arc radius of the first blade is R1, and the arc included angle of the first blade is Θ1, wherein 50mm≤R1≤55mm; and / or 40°≤Θ1≤45°.

[0022] The above range can ensure that the air volume at the outlet is not significantly reduced and the flow rate is not significantly lost while increasing the sweeping range, thereby improving the sweeping effect.

[0023] In some embodiments, the second blade is an arc-shaped blade, and the arc radius of the second blade is R2, and the arc included angle of the second blade is Θ2, wherein 30mm≤R2≤40mm; and / or 30°≤Θ2≤35°.

[0024] The above range can ensure that the air volume at the outlet is not significantly reduced and the flow rate is not significantly lost while increasing the sweeping range, thereby improving the sweeping effect.

[0025] In some embodiments, the sweeping state includes a first sweeping mode and a second sweeping mode. In the first sweeping mode, the sweeping angle of each blade is in the range of -50° to 0°; in the second sweeping mode, the sweeping angle of each blade is in the range of -50° to -20°.

[0026] By setting a first sweeping mode and a second sweeping mode, the sweeping blades can have different sweeping angle ranges, thus meeting the needs of users of different heights and effectively preventing the fan module from blowing air directly onto the user's head.

[0027] In some embodiments, the fan module further includes a control unit and a detection unit connected in communication. The detection unit is used to detect the user's height. The control unit is connected in communication with each of the blades and is used to control each of the blades to switch between the first sweeping mode and the second sweeping mode based on the detection result of the detection unit.

[0028] The above structure allows for better switching of the sweeping mode of the sweeping blades based on the user's height, enabling the sweeping angle and height to better match the user's height, effectively avoiding direct airflow onto the user's head and improving the user experience.

[0029] In some embodiments, in the horizontal direction, the distance between the rotation center of the sweeping blade and the air outlet ranges from 10mm to 20mm;

[0030] And / or, in the vertical direction, the distance between the rotation center of the sweeping blade and the bottom wall of the air cavity ranges from 30mm to 40mm.

[0031] In some embodiments, the fan module further includes a baffle that is movably disposed on the air outlet body and is used to open or close the air outlet.

[0032] By setting up a baffle, the sweeping blades can be better housed within the containment space, and the baffle can also exert a certain pressure on the airflow in the upper part of the containment space, which is more conducive to the downward flow of airflow.

[0033] Secondly, this application also provides a range hood, including a range hood body and a fan module as described above, wherein a smoke collection chamber is provided on the range hood body and the fan module is disposed on the range hood body.

[0034] The aforementioned fan module and range hood, firstly, feature an arc-shaped sweeping blade that allows for a larger sweeping angle and a wider sweeping range, catering to users of different heights and effectively preventing direct head-blowing. Secondly, by tilting the bottom surface of the air guide, a larger space is created within the air cavity to accommodate the arc-shaped sweeping blade. This, through the inherent structural characteristics of the sweeping blade, expands the sweeping range and reduces the probability of direct head-blowing, thereby improving the user experience. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of a range hood according to one or more embodiments.

[0036] Figure 2 This is a structural schematic diagram of a fan module in a range hood in a sweeping state according to one or more embodiments.

[0037] Figure 3 This is a schematic diagram of the fan module in a current range hood.

[0038] Figure 4 This is a simulation cloud map of the wind speed distribution of the fan module in a current range hood when the sweeping angle is -50°.

[0039] Figure 5 This is a schematic diagram of the fan module in the off state of a range hood according to one or more embodiments.

[0040] Figure 6 This is a schematic diagram of the fan module in a range hood under the second sweeping mode according to one or more embodiments.

[0041] Figure 7 This is a schematic diagram of the fan module in a range hood under a first sweeping mode according to one or more embodiments.

[0042] Figure 8 This is a simulation cloud map of the wind speed distribution of the fan module in a range hood according to one or more embodiments when the sweeping angle is 0°.

[0043] Figure 9 This is a simulation cloud map of the wind speed distribution of the fan module in a range hood according to one or more embodiments when the sweeping angle is -20°.

[0044] Figure 10 This is a simulation cloud map of the wind speed distribution of the fan module in a range hood according to one or more embodiments when the sweeping angle is -50°.

[0045] Explanation of reference numerals in the attached drawings: 100, range hood; 200, user's head; 1, blade; 2, top surface; 10, fan module; 20, main body of the range hood; 30, smoke collection chamber; 40, stove; 50, cookware; 11, main air outlet; 12, air outlet component; 13, air guide component; 14, sweeping blade; 15, baffle; 111, air cavity; 112, air outlet; 141, first blade; 142, second blade. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] See Figure 1 and Figure 2 This application provides a fan module 10 for use in a range hood 100. The fan module 10 includes an air outlet body 11, an air outlet component 12, a flow guide component 13, and a sweeping blade 14. The air outlet body 11 has an air cavity 111 inside, and an air outlet 112 communicating with the air cavity 111 is opened on the air outlet body 11 in a horizontal direction. The air outlet component 12 is disposed in the air cavity 111 and is used to deliver airflow to the air outlet 112. The sweeping blade 14 is rotatably disposed in the air cavity 111 and adjacent to the air outlet 112. The sweeping blade 14 has an arc-shaped sweeping surface facing the interior of the air cavity 111. The flow guide component 13 is disposed in the air cavity 111, and the bottom surface facing the sweeping blade 14 is set as an inclined surface that avoids the sweeping path of the sweeping blade 14.

[0053] It should be noted that range hoods have become an important household appliance in daily life, capable of absorbing cooking fumes and keeping the indoor environment clean. However, while range hoods can remove fumes when cooking, they cannot alleviate the high-temperature environment, causing discomfort and heat.

[0054] Under these circumstances, some range hoods 100 with built-in air conditioning or fans have emerged. Among them, range hoods 100 with built-in air conditioning are more expensive, have a more complicated installation process, and are less competitive in the market. As for the fans currently installed in range hoods 100, their air delivery range is very limited, which can easily affect the stove flame during the air blowing process, and can also cause direct airflow onto the user's head 200, affecting the user experience.

[0055] Specifically, such as Figure 3 As shown, in current range hood fan structures, blades 1 are typically designed as straight blades, and the top surface 2 of the exhaust duct is horizontal. Consequently, the overall height H of the exhaust duct is the same as the height of the air outlet, resulting in a relatively low overall height. This limits the space available for blades 1 within the exhaust duct, preventing further increases in blade length and causing a further decrease in the height of the exhaust airflow. Figure 4 As shown, the range of the sweeping angle is relatively small, resulting in a low minimum sweeping height that can be reached, only 1.5m. For users below 1.7m, the airflow is likely to blow directly onto their head, which may cause discomfort.

[0056] Based on this, this application discloses a fan module 10, which can be installed on a range hood 100 and used to deliver air during the use of the range hood 100 to cool the environment and improve the user experience.

[0057] Specifically, the fan module 10 includes an air outlet body 11, an air outlet component 12, a guide component 13, and sweeping blades 14. The air outlet body 11 is mounted on the range hood 100. The interior of the air outlet body 11 is hollow, forming an air cavity 111. An air outlet 112 is formed on the air outlet body 11, communicating with the air cavity 111 and opening horizontally. In this way, when the user is using the range hood 100, air can be blown towards the user through the air outlet 112 to achieve cooling.

[0058] Furthermore, the air outlet 12 refers to a structure capable of generating airflow to achieve blowing. The air outlet 12 can be, but is not limited to, a cross-flow fan or other fan. When the air outlet 12 is placed inside the air cavity 111, the air outlet 12 can blow air outward through the air outlet 112.

[0059] The sweeping blade 14 refers to the structure that can change the blowing direction of the air outlet 112. The sweeping blade 14 is rotatably set in the air cavity 111. By adjusting the rotation angle of the sweeping blade 14, the output direction of the airflow at the air outlet 112 can be changed, thereby adjusting the air delivery direction.

[0060] Furthermore, the side of the sweeping blade 14 facing the inside of the air cavity 111 is set as an arc-shaped sweeping surface. In this way, the length of the sweeping blade 14 can be set to be longer, and the arc-shaped sweeping surface can expand the sweeping angle and sweeping range, and reduce the sweeping height.

[0061] In other words, the curved sweeping surface allows the sweeping blades 14 to have a lower sweeping height and a larger sweeping angle, thereby avoiding direct airflow onto the user's head.

[0062] The air guide 13 is also disposed in the air cavity 111 and is located horizontally between the air outlet 12 and the air outlet 112. In this way, the air guide 13 can guide the airflow formed by the air outlet 12, so that it can be blown out smoothly from the air outlet 112.

[0063] As a specific embodiment, the flow guide 13 can be set as a volute tongue, or an additional flow guide structure can be set on the volute tongue to play a flow guiding role.

[0064] The bottom surface of the guide member 13 facing the sweeping blade 14 is set as an inclined surface that avoids the sweeping path of the sweeping blade 14. The sweeping path of the sweeping blade 14 refers to the path that the sweeping blade 14 travels during the process of sweeping by rotating. That is, the rotation path of the sweeping blade 14.

[0065] This allows for a larger storage space for the longer sweeping blades 14 with curved sweeping surfaces, and the inclined bottom surface can also guide the airflow, allowing the airflow to flow more smoothly to the air outlet 112.

[0066] Therefore, the arc-shaped sweeping surface allows the sweeping blades 14 to have a larger sweeping angle, that is, the airflow blown from the air outlet 112 has a larger blowing range; at the same time, the bottom surface of the guide 13 is tilted so that the sweeping blades 14 can be better housed below the bottom surface of the guide 13. Through the structural characteristics of the sweeping blades 14, the sweeping range can be expanded, the probability of direct airflow to the user's head can be reduced, thereby improving the user's experience.

[0067] In some embodiments, the guide member 13 is inclined upward relative to the bottom surface of the sweeping blade 14 in a horizontal direction, and the guide member 13, the cavity wall of the air cavity 111 and the air outlet 112 together define and form a receiving space for accommodating the sweeping blade 14.

[0068] The guide element can be configured as a volute, and the cavity wall of the air chamber 111 can be formed as a volute. Compared with the traditional horizontal guide surface, the bottom surface of the upwardly inclined guide element 13 can define a larger accommodating space, providing a larger installation and rotation space for the sweeping blades 14.

[0069] Therefore, the bottom surface of the guide 13 is inclined upwards, which provides a larger space for the arc-shaped sweeping blade 14 without affecting the air outlet. The inclined surface can also guide the airflow, so that the airflow can be better delivered from the air outlet 112 through the sweeping blade 14.

[0070] In some embodiments, the sweeping blade 14 is rotatably disposed in the receiving space and has a sweeping state in which at least part of it extends out of the air outlet 112. The sweeping blade 14 includes at least two blades. In the sweeping state, each blade is spaced apart in the vertical direction to form an air duct between each pair of adjacent blades that connects the air cavity 111 and the air outlet 112.

[0071] Specifically, the sweep blade 14 can be configured as two or more blades, so that an air duct can be formed between each pair of adjacent blades, and the cooperation of each air duct can further expand the air supply range.

[0072] Each blade is rotatably mounted within the housing space and can rotate clockwise or counterclockwise. The specific rotation direction of the blade can be adjusted according to the actual airflow direction during use, which will not be elaborated here.

[0073] When the sweeping blade 14 is in the sweeping state, it indicates that the fan module 10 is in working state. At this time, at least a part of the sweeping blade 14 extends out of the air outlet 112, and the air outlet 12 is turned on, so that air is sent out through the air outlet 112 and the sweeping blade 14.

[0074] Furthermore, when the sweeping blade 14 is in the sweeping state, since at least a portion of the sweeping blade 14 extends out of the air outlet 112, the sweeping capacity can be further increased, and the sweeping height can be further reduced.

[0075] Therefore, by setting at least two blades and spacing them apart, multiple air ducts can be formed at the air outlet 112. The rotation and cooperation between the blades can change the air delivery direction of each air duct, thereby further expanding the air delivery range of the fan module 10 and enabling the fan module 10 to better meet the usage requirements.

[0076] In some embodiments, each blade is an arc-shaped blade.

[0077] Specifically, each blade is set as an arc-shaped blade, that is, the surface of each blade facing the air cavity 111 or facing the air outlet 112 is set as an arc surface.

[0078] First, the inclined guide 13 creates a larger accommodating space between its bottom surface and the air cavity 111 and air outlet 112, allowing for better accommodation of the curved blades. Second, the curved blades have a longer length along the air outlet direction, which helps improve the sweeping effect.

[0079] Furthermore, when the curved blades rotate to their lowest point, the sweep height can be further reduced, resulting in a wider sweep range. If the user is relatively tall, the lower sweep height can effectively prevent the air from blowing directly onto the user's head.

[0080] Therefore, by setting the sweeping blades 14 to arc-shaped blades, the sweeping effect can be effectively improved, and the sweeping range can be further expanded, thus enhancing the user experience.

[0081] like Figure 2 and Figure 5 As shown, in some embodiments, the sweeping blades 14 also have a closed state housed within the receiving space. When the sweeping blades 14 are in the closed state, each blade flips into the interior of the air outlet body 11.

[0082] Specifically, the sweeping blades 14 can be rotated to switch between a closed state and a sweeping state. When the sweeping blades 14 are in the closed state, it indicates that the fan module 10 is in the closed state, and at this time, each blade is retracted into the receiving space.

[0083] When the sweeping blade 14 is in the sweeping state, it indicates that the fan module 10 is in working state. At this time, at least part of the sweeping blade 14 extends out of the air outlet 112, and the air outlet 12 is turned on, so that air is sent out through the air outlet 112 and the sweeping blade 14.

[0084] Furthermore, when the sweeping blades 14 are in the closed state, each blade flips into the interior of the air outlet body 11, thus enabling the blades to be stored in the closed state.

[0085] Thus, with the above structure, not only can the sweeping blade 14 be well housed in the receiving space when closed, but also when in the sweeping state, at least a portion of the sweeping blade 14 extends out of the air outlet 112, which can further increase the sweeping capacity and further reduce the sweeping height.

[0086] In some embodiments, the sweeping blade 14 includes a first blade 141 and a second blade 142. When the first blade 141 and the second blade 142 are in the sweeping state, the first blade 141 is positioned vertically above the second blade 142. The length of the first blade 141 is greater than the length of the second blade 142.

[0087] It should be noted that the lengths of the first blade 141 and the second blade 142 refer to the curve lengths of the cross-sectional trajectories of the first blade 141 and the second blade 142 along the vertical direction. Specifically, if the cross-section of the first blade 141 and the second blade 142 along the vertical direction is a straight blade, then the lengths of the first blade 141 and the second blade 142 are the lengths of the line segments at their two endpoints; if the cross-section of the first blade 141 and the second blade 142 along the vertical direction is an arc-shaped blade, then the lengths of the first blade 141 and the second blade 142 are the lengths of the arc curve.

[0088] As a specific embodiment, the sweeping blade 14 can be configured as two blades, namely a first blade 141 and a second blade 142. When the first blade 141 and the second blade 142 are in the sweeping state, the first blade 141 is located above the second blade 142 in the vertical direction, and the length of the first blade 141 is greater than the length of the second blade 142.

[0089] In other words, during the sweeping process, the longer first blade 141 is positioned above, and the shorter second blade 142 is positioned below. This allows the upper first blade 141 to control the angle of the airflow, primarily serving the sweeping function. The lower second blade 142, on the other hand, guides the airflow inside the air cavity 111 upwards, preventing it from blowing directly out from the lower outlet.

[0090] In addition, the shorter second blade 142 is located at the bottom, which can avoid blocking the airflow and ensure the air volume as much as possible.

[0091] Therefore, by setting the first blade 141 and the second blade 142, not only can the sweeping be achieved smoothly, but the airflow can also be effectively prevented from being blocked, ensuring the air volume and making the cooling effect of the fan module 10 better.

[0092] Please refer to Figure 2 and Figure 6 In some embodiments, the first blade 141 is an arc-shaped blade, and the arc radius of the first blade 141 is R1, and the arc included angle of the first blade 141 is Θ1, wherein 50mm≤R1≤55mm; and / or 40°≤Θ1≤45°.

[0093] Specifically, the range of R1 can be set to 50mm to 55mm, and / or the range of Θ1 can be set to 40° to 45°.

[0094] As a specific embodiment, the arc radius R1 of the first blade 141 can be, but is not limited to, set to 50mm, 51mm, 52mm, 53mm, 54mm, or 55mm, and the arc included angle Θ1 of the first blade 141 can be, but is not limited to, set to 40°, 41°, 42°, 43°, 44°, or 45°.

[0095] Therefore, the above-mentioned range can ensure that the air volume of the outlet 112 is not significantly reduced and the flow rate is not significantly lost while increasing the sweeping range, thereby improving the sweeping effect.

[0096] like Figure 6 As shown, in some embodiments, in the horizontal direction, the distance D1 between the rotation center of the sweeping blade 14 and the air outlet 112 ranges from 10mm to 20mm; and / or, in the vertical direction, the distance D2 between the rotation center of the sweeping blade 14 and the bottom side of the cavity wall of the air chamber 111 ranges from 30mm to 40mm.

[0097] In one specific embodiment, in the horizontal direction, the distance D1 between the rotation center of the sweeping blade 14 and the air outlet 112 can be, but is not limited to, 11 mm; of course, in some other embodiments, the distance D1 between the rotation center of the sweeping blade 14 and the air outlet 112 can also be set to 10 mm, 15 mm, or 20 mm. In the vertical direction, the distance D2 between the rotation center of the sweeping blade 14 and the bottom side of the cavity wall of the air chamber 111 can be, but is not limited to, 35 mm; of course, in some other embodiments, the distance D2 between the rotation center of the sweeping blade 14 and the bottom side of the cavity wall of the air chamber 111 can also be set to 30 mm, 38 mm, or 40 mm.

[0098] In this way, when closed, the sweeping blades 14 can be better housed inside the air outlet body 11. When in the sweeping state, the sweeping blades 14 can form a larger sweeping range.

[0099] In some embodiments, the second blade 142 is an arc-shaped blade, and the arc radius of the second blade 142 is R2, and the arc included angle of the second blade 142 is Θ2, wherein 30mm≤R2≤40mm; and / or 30°≤Θ2≤35°.

[0100] Specifically, the range of R2 can be set to 30mm to 40mm, and / or the range of Θ2 can be set to 30° to 35°.

[0101] As a specific embodiment, the arc radius R2 of the second blade 142 can be set to 30mm, 32mm, 34mm, 36mm, 38mm, or 40mm, and the arc included angle Θ2 of the second blade 142 can be set to 30°, 31°, 32°, 33°, 34°, or 35°, but is not limited to.

[0102] Therefore, the above-mentioned range can ensure that the air volume of the outlet 112 is not significantly reduced and the flow rate is not significantly lost while increasing the sweeping range, thereby improving the sweeping effect.

[0103] like Figure 6 and Figure 7 As shown, in some embodiments, the sweeping state includes a first sweeping mode and a second sweeping mode. In the first sweeping mode, the sweeping angle α of each blade is in the range of -50° to 0°; in the second sweeping mode, the sweeping angle α of each blade is in the range of -50° to -20°.

[0104] Among them, the sweeping angle α refers to the angle between the line connecting the two ends of the sweeping blade 14 and the horizontal plane.

[0105] Specifically, the sweeping process can be divided into a first sweeping mode and a second sweeping mode. In the first sweeping mode and the second sweeping mode, the sweeping angle range of each blade is different.

[0106] Furthermore, in one embodiment, in either the first or second sweep mode, the sweep angle α of each blade can be adjusted as a whole. In other embodiments, in the first sweep mode, the sweep angle α of each blade can also be adjusted individually; or in the second sweep mode, the sweep angle α of each blade can also be adjusted individually.

[0107] Understandably, different users have different requirements for the air swing angle due to differences in height or other conditions.

[0108] For example, taller users may require a higher swing angle, while shorter users may require a lower swing angle.

[0109] Therefore, the sweeping mode includes a first sweeping mode and a second sweeping mode. In the first sweeping mode, the sweeping angle of each blade ranges from -50° to 0°, and the sweeping height ranges from 1.3m to 1.55m, which can meet the needs of taller users. In the second sweeping mode, the sweeping angle of each blade ranges from -50° to -20°, and the sweeping height ranges from 1.3m to 1.4m, which can meet the needs of shorter users.

[0110] Among them, the sweep height refers to the height from the point where the highest wind speed blown out from the air outlet 112 reaches the user's body to the ground.

[0111] Therefore, by setting the first and second sweeping modes, each blade can have a different sweeping angle range, which can meet the needs of users of different heights and effectively avoid the situation where the fan module 10 blows air directly onto the user's head.

[0112] In some embodiments, the fan module 10 further includes a control unit (not shown) and a detection unit (not shown) connected by communication. The detection unit is used to detect the user's height, and the control unit is connected by communication with each blade and is used to control each blade to switch between a first sweeping mode and a second sweeping mode according to the detection result of the detection unit.

[0113] Specifically, the detection element refers to a structure capable of detecting the user's height. The detection element can be, but is not limited to, an infrared sensor. The infrared sensor can be placed at a corresponding position on the air outlet body 11 or other structures of the range hood 100, as long as it can detect the user's height.

[0114] The control unit is connected to the detection unit and each blade for communication. When the detection unit detects the user's height, it transmits the detection result to the control unit. The control unit controls each blade to switch between the first sweep mode and the second sweep mode according to the detection result.

[0115] For example, when the sensor detects a user's height of 1.7m or more, the controller can switch each blade to the first sweep mode, making the sweep height range between 1.3m and 1.55m. When the sensor detects a user's height of 1.7m or less, the controller can switch each blade to the second sweep mode, making the sweep height range between 1.3m and 1.4m.

[0116] Figure 8 The simulation cloud map of wind speed distribution of the fan module at a sweep angle of 0° is shown. Figure 9 The simulation cloud map of wind speed distribution of the fan module at a sweep angle of -20° is shown. Figure 10 The simulation cloud map of wind speed distribution of the fan module at a sweep angle of -50° is shown. It can be seen that the sweep height of the fan module in this application at a sweep angle of -50° is significantly lower than... Figure 4 It can effectively avoid blowing directly above the forehead, which would cause discomfort to the user, while ensuring that it blows to the area below the nose, including the neck, for users of different heights.

[0117] In addition, by Figure 8-10 It can be seen that when the sweeping blade 14 of the fan module is an arc-shaped blade, the sweeping height gradually decreases as the sweeping angle decreases.

[0118] Therefore, the airflow height can be adjusted more flexibly according to the user's height, effectively avoiding direct airflow onto the user's head.

[0119] Understandably, the height range for detection can be adjusted according to the actual situation, for example, set to 1.6m and below, or 1.8m and below, which will not be elaborated here.

[0120] With the above structure, the sweeping mode of the sweeping blade 14 can be switched better according to the user's height, so that the sweeping angle and sweeping height can be better matched with the user's height, effectively avoiding direct airflow to the user's head and improving the user experience.

[0121] In some embodiments, the fan module 10 further includes a baffle 15, which is movably disposed on the air outlet body 11 and is used to open or close the air outlet 112.

[0122] Specifically, the baffle 15 can be slidably disposed at the air outlet 112, so that sliding the baffle 15 downward can close the air outlet 112, and sliding the baffle 15 upward can open the air outlet 112.

[0123] Furthermore, without changing the travel distance of the baffle 15 at the air outlet 112, the bottom surface of the guide 13 is tilted to increase the accommodating space, thereby providing more space to accommodate the extended sweeping blades 14 and enhancing the sweeping effect.

[0124] In addition, the baffle 15 can also compress the airflow in the upper part of the accommodating space, which is more conducive to the downward flow of air.

[0125] Therefore, by setting the baffle 15, the sweeping blades 14 can be better housed in the receiving space, and the baffle 15 can also play a certain role in compressing the airflow in the upper part of the receiving space, which is more conducive to the downward flow of airflow.

[0126] Please refer to it again. Figure 1 Based on the same concept as the fan module 10 described above, this application also provides a range hood 100, including a range hood body 20 and the fan module 10 as described above. The range hood body 20 has a smoke collection chamber 30, and the fan module 10 is disposed on the range hood body 20 and located above the smoke collection chamber 30.

[0127] In addition, a stove 40 is usually installed directly below the smoke collection chamber 30, and pots and pans 50 can be placed on the stove 40.

[0128] Based on the same concept as the range hood 100 described above, this application can also provide a control method for the range hood 100, used to control the range hood 100 as described above, the control method including the following steps:

[0129] S20: Open the air outlet 12 to form an airflow in the air cavity 111 and blow it out from the air outlet 112.

[0130] S40: Control the rotation of the sweeping blades 14 according to the user's height to change the direction of airflow from the air outlet 112.

[0131] When using the range hood 100, first turn on the air outlet 12. The air outlet 12 can form an airflow in the air cavity 111 and blow it out from the air outlet 112 to achieve air supply.

[0132] Furthermore, the rotation angle of the sweeping blades 14 within the accommodating space is controlled according to the user's actual height. In this way, the direction of airflow can be changed according to the user's height, so that the sweeping height of the sweeping blades 14 can better match the user's height and effectively avoid direct airflow onto the user's head.

[0133] In some embodiments, prior to step S20, the following step is also included:

[0134] S10: Open the air outlet 112 and control the sweeping blades 14 to rotate from the closed state to the sweeping state.

[0135] In the initial state, the baffle 15 blocks the air outlet 112, and the sweeping blades 14 are retracted into the air cavity 111, with the air outlet 112 closed. In use, the baffle 15 is slid upward to open the air outlet 112, and the sweeping blades 14 are controlled to rotate at a certain angle from the closed state to the sweeping state, enabling different ranges of sweeping through the sweeping blades 14.

[0136] In some embodiments, step S40 specifically includes the following steps:

[0137] S41: Detect and determine the user's height.

[0138] S42: When the user's height is within the first range, control the sweeping blades 14 to rotate to the first sweeping mode.

[0139] S43: When the user's height is within the second range, control the sweeping blades 14 to rotate to the second sweeping mode.

[0140] Specifically, the user's height is detected using a detection device, such as an infrared sensor, to obtain a detection result. This result is compared to a first range and a second range. When the detection result is within the first range, the control device rotates the sweeping blade 14 to a first sweeping mode. When the detection result is within the second range, the control device rotates the sweeping blade 14 to a second sweeping mode.

[0141] In this way, different sweeping modes can be selected according to the height of different users, thereby achieving sweeping at different heights, making the sweeping range more compatible with the user's height, and improving the user's experience and comfort.

[0142] In some embodiments, the first range is greater than or equal to 1.7m, and in the first sweep mode, the sweep angle of the sweep blade 14 ranges from -50° to 0°. And / or, the second range is less than 1.7m, and in the second sweep mode, the sweep angle of the sweep blade 14 ranges from -50° to -20°.

[0143] Specifically, when the user's height is detected to be greater than or equal to 1.7m, that is, when the user's height is 1.7m or above, the controller can control the sweeping blade 14 to switch to the first sweeping mode. The sweeping angle of the sweeping blade 14 is -50° to 0°, and the sweeping height is between 1.3m and 1.55m.

[0144] When the user's height is detected to be less than 1.7m, the controller can control the sweeping blade 14 to switch to the second sweeping mode. The sweeping angle of the sweeping blade 14 is -50° to -20°, and the sweeping height is between 1.3m and 1.4m.

[0145] Therefore, the airflow height can be adjusted more flexibly according to the user's height, effectively avoiding direct airflow onto the user's head.

[0146] According to one or more embodiments, when using this application, the air outlet 112 is first opened, and the air outlet component 12 is opened to smoothly generate airflow in the air cavity 111. At the same time, the sweeping blade 14 rotates from the closed state to the sweeping state within the receiving space, and at least a portion of the sweeping blade 14 can extend out of the air outlet 112, thereby better adjusting the sweeping angle and range.

[0147] Furthermore, the detection device can detect the user's actual height. When the user's height is detected to be above 1.7m, the control device can control each blade to switch to the first sweep mode. The sweep angle of each blade is in the range of -50° to 0°, and the sweep height is in the range of 1.3m to 1.55m.

[0148] When the user's height is detected to be below 1.7m, the controller can switch each blade to the second sweep mode. The sweep angle of each blade is in the range of -50° to -20°, and the sweep height is in the range of 1.3m to 1.4m.

[0149] 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.

[0150] 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 fan module, characterized in that, Applied to a range hood (100), the fan module (10) includes: The air outlet body (11) has an air cavity (111) inside, and an air outlet (112) communicating with the air cavity (111) is opened on the air outlet body (11) in the horizontal direction; An air outlet (12) is disposed in the air cavity (111) and is used to deliver airflow to the air outlet (112); A sweeping blade (14) is rotatably disposed within the air cavity (111) and adjacent to the air outlet (112). The sweeping blade (14) has an arc-shaped sweeping surface facing the interior of the air cavity (111). The guide (13) is disposed in the air cavity (111), and the bottom surface facing the sweeping blade (14) is configured as an inclined surface that avoids the sweeping path of the sweeping blade (14).

2. The fan module according to claim 1, characterized in that, The guide member (13) is inclined upward relative to the horizontal direction on the bottom surface of the sweeping blade (14). The guide member (13), the cavity wall of the air cavity (111), and the air outlet (112) together define and form a receiving space for accommodating the sweeping blade (14).

3. The fan module according to claim 2, characterized in that, The sweeping blade (14) is rotatably disposed in the receiving space and has a sweeping state that at least partially extends out of the air outlet (112). The sweeping blade (14) includes at least two blades. In the swept state, each of the blades is arranged at intervals in the vertical direction to form an air duct between each two adjacent blades, which connects the air cavity (111) and the air outlet (112).

4. The fan module according to claim 3, characterized in that, All of the blades are curved blades.

5. The fan module according to claim 3, characterized in that, The sweeping blade (14) also has a closed state that is housed in the accommodating space. When the sweeping blade (14) is in the closed state, each blade flips into the interior of the air outlet body (11).

6. The fan module according to claim 3, characterized in that, The sweeping blade (14) includes a first blade (141) and a second blade (142). When the first blade (141) and the second blade (142) are in the sweeping state, the first blade (141) is located above the second blade (142) in the vertical direction. The length of the first blade (141) is greater than the length of the second blade (142).

7. The fan module according to claim 6, characterized in that, The first blade (141) is an arc-shaped blade, and the arc radius of the first blade (141) is R1, and the arc included angle of the first blade (141) is Θ1, wherein 50mm≤R1≤55mm; and / or 40°≤Θ1≤45°.

8. The fan module according to claim 6 or 7, characterized in that, The second blade (142) is an arc-shaped blade, and the arc radius of the second blade (142) is R2, and the arc included angle of the second blade (142) is Θ2, wherein 30mm≤R2≤40mm; and / or 30°≤Θ2≤35°.

9. The fan module according to claim 3, characterized in that, The sweeping state includes a first sweeping mode and a second sweeping mode. In the first sweeping mode, the sweeping angle of each blade is in the range of -50° to 0°. In the second sweeping mode, the sweeping angle of each blade is in the range of -50° to -20°.

10. The fan module according to claim 9, characterized in that, The fan module also includes a control unit and a detection unit connected by communication. The detection unit is used to detect the user's height. The control unit is connected by communication with each of the blades and is used to control each of the blades to switch between the first sweeping mode and the second sweeping mode according to the detection result of the detection unit.

11. The fan module according to claim 1, characterized in that, In the horizontal direction, the distance between the rotation center of the sweeping blade (14) and the air outlet (112) ranges from 10mm to 20mm; And / or, in the vertical direction, the distance between the rotation center of the sweeping blade (14) and the bottom side of the cavity wall of the air chamber (111) is in the range of 30mm to 40mm.

12. The fan module according to claim 1, characterized in that, The fan module also includes a baffle (15), which is movably disposed on the air outlet body (11) and is used to open or close the air outlet (112).

13. A range hood, characterized in that, The device includes a range hood body (20) and a fan module (10) as described in any one of claims 1-12, wherein the range hood body (20) has a smoke collection chamber (30) and the fan module (10) is disposed on the range hood body (20).

Images