Air sweeping assembly, air supply part and range hood

Abstract

The utility model relates to an air sweeping assembly, an air supply part and a range hood, and the air sweeping assembly is used for the air supply part and comprises an air guide panel and a linkage mechanism. The air guide panel is rotatably arranged at the air outlet of the air supply part and is configured to be capable of rotating to close the air outlet. The linkage mechanism has a transmission state and a disconnection state which can be switched mutually, in the transmission state, the linkage mechanism is in transmission connection with the air guide panel and an air supply motor of the air supply part, and in the disconnection state, the linkage mechanism disconnects transmission between the air guide panel and the air supply motor. According to the air sweeping assembly, the air guide panel can be driven by the air supply motor to rotate under transmission of the linkage mechanism, then the air sweeping function is achieved, an air sweeping motor does not need to be independently arranged, and energy consumption can be reduced. Meanwhile, the air guide panel can also rotate to seal the air outlet, so that when the air supply part does not supply air, the air outlet is sealed, and oil smoke, water mist and the like entering the air supply part from the air outlet are reduced.

Description

Technical Field

[0001] This application relates to the technical field of range hoods, and particularly to a sweeping component, a blowing part, and a range hood. Background Art

[0002] The main body of a fan range hood can be divided into two major parts: a fan part and a range hood part. The main function of the range hood is to extract cooking fumes, and the main function of the fan part is to circulate air flow in the kitchen to cool down. The fan part mainly blows high-speed air flow towards the cook to cool the head and upper limbs of the cook. Inside the fan part, a cross-flow impeller rotates at a high speed, converting the filtered kitchen air into high-speed air flow and blowing it towards the head and upper limbs of the cook.

[0003] However, in the related art, the sweeping structure of the fan range hood has a single function, usually only has a sweeping function, and has problems such as high power consumption. Utility Model Content

[0004] Based on this, it is necessary to provide a sweeping component, a blowing part, and a range hood with multiple functions and lower power consumption in view of the above problems.

[0005] A sweeping component for a blowing part, the sweeping component includes:

[0006] A guiding air panel rotatably arranged at the air outlet of the blowing part and configured to be able to rotate to close the air outlet; and

[0007] A linkage mechanism having a transmission state and a disconnection state that can be switched to each other. In the transmission state, the linkage mechanism drives and connects the guiding air panel and the air blowing motor of the blowing part. In the disconnection state, the linkage mechanism disconnects the transmission between the guiding air panel and the air blowing motor.

[0008] In one embodiment, the linkage mechanism includes a first transmission gear and a second transmission gear. The first transmission gear is drivingly connected to the output shaft of the air blowing motor, and the second transmission gear is drivingly connected to the guiding air panel. And in the transmission state, the first transmission gear is drivingly connected to the second transmission gear. In the disconnection state, the transmission between the first transmission gear and the second transmission gear is disconnected.

[0009] In one embodiment, the linkage mechanism further includes a third transmission gear, which is movably arranged and has a linkage position and a disconnection position that can be switched by movement; when the third transmission gear moves to the linkage position, the third transmission gear meshes with the first transmission gear and the second transmission gear, and the linkage mechanism is in the transmission state; when the third transmission gear moves to the disconnection position, the third transmission gear is separated from the first transmission gear and the second transmission gear, and the linkage mechanism is in the disconnection state.

[0010] In one embodiment, the rotation axes of the first transmission gear, the second transmission gear, and the third transmission gear are arranged parallel to each other. The linkage mechanism further includes a telescopic motor, which is drivingly connected to the third transmission gear and is configured to be able to drive the third transmission gear to move along its own axial direction to switch between the linkage position and the disconnection position.

[0011] In one embodiment, the linkage mechanism further includes a connecting rod and a crank. The first end of the connecting rod is rotatably connected to the air deflector panel, and the rotation axis is parallel and spaced from the rotation axis of the air deflector panel; one end of the crank is coaxially connected to the second transmission gear and can rotate with the second transmission gear, and the other end is rotatably connected to the second end of the connecting rod.

[0012] In one embodiment, the distance between the rotation axis of the first end of the connecting rod and the rotation axis of the air deflector panel is a; the distance between the first end and the second end of the connecting rod is b; the rotation axes of the air deflector panel and the second transmission gear are arranged parallel to each other, and the distance between the two rotation axes is c; the distance between the two ends of the crank is d, then a > d, c > d, b > d, a + c > b + d, a + b > c + d.

[0013] In one embodiment, the sweeping component further includes a locking structure, which is arranged on the air deflector panel and / or the linkage mechanism and is configured to lock the air deflector panel in the rotation direction of the air deflector panel when the linkage mechanism is in the disconnection state.

[0014] In one embodiment, the locking structure is a damping self-locking structure.

[0015] In one embodiment, the air deflector panel is arranged outside the air outlet, and the rotation axis of the air deflector panel is located at the top of the air outlet.

[0016] In one embodiment, the sweeping component further includes a closing mechanism, which is drivingly connected to the air deflector panel and is configured to be able to drive the air deflector panel to rotate to close the air outlet.

[0017] An air supply unit includes the above-mentioned air sweeping component.

[0018] An oil fume extractor includes the above-mentioned air sweeping component or the above-mentioned air supply unit.

[0019] For the above-mentioned air sweeping component, air supply unit, and oil fume extractor, the air guiding panel can be driven by the air supply motor to rotate under the transmission of the linkage mechanism, thereby realizing the air sweeping function, without the need to separately configure an air sweeping motor, which helps to reduce energy consumption. At the same time, the air guiding panel can also rotate to close the air outlet, so as to seal the air outlet when the air supply unit is not supplying air, and reduce the entry of oil fume, water mist, etc. into the air supply unit through the air outlet. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of an oil fume extractor with an air sweeping component in an embodiment of the present application.

[0022] Figure 2 For Figure 1 The schematic structural diagram of the oil fume extractor shown after hiding some structures.

[0023] Figure 3 For Figure 1 The schematic structural diagram of another angle of the oil fume extractor shown after hiding some structures.

[0024] Figure 4 For Figure 1 The schematic structural diagram of the oil fume extractor shown when the air guiding panel of the air sweeping component is opened.

[0025] Figure 5 For Figure 4 The schematic structural diagram of the oil fume extractor shown after hiding some structures.

[0026] Figure 6 For Figure 4 The schematic structural diagram of another angle of the oil fume extractor shown after hiding some structures.

[0027] Figure 7 For Figure 5 The schematic structural diagram of the air sweeping component and the air supply motor in the oil fume extractor shown.

[0028] Figure 8 For Figure 1Schematic structural diagram of the range hood shown when the air deflector panel of the air sweeping component is opened to an included angle α of 43°.

[0029] Figure 9 For Figure 1 Schematic structural diagram of the range hood shown when the air deflector panel of the air sweeping component is opened to an included angle α of 58°.

[0030] Figure 10 For Figure 1 Schematic structural diagram of the range hood shown when the air deflector panel of the air sweeping component is opened to an included angle α of 69°.

[0031] Figure 11 For Figure 1 Schematic structural diagram of the air sweeping component in the range hood shown.

[0032] Figure 12 For Figure 1 Schematic structural diagram of the linkage mechanism, air supply blower wheel and air supply motor of the air sweeping component in the range hood shown.

[0033] Figure 13 For Figure 1 Schematic structural diagram of the range hood shown when the air deflector panel of the air sweeping component and the smoke guide plate of the range hood part are opened simultaneously.

[0034] Figure 14 Schematic flow diagram of the control method of the air sweeping component in an embodiment of the present application.

[0035] Explanation of reference numerals: 100, air sweeping component; 10, air deflector panel; 11, glass panel; 13, sheet metal bracket; 15, hinge; 30, linkage mechanism; 31, first transmission gear; 32, second transmission gear; 33, connecting rod; 34, crank; 35, third transmission gear; 50, gear bracket; 200, range hood; 210, air supply part; 211, air supply motor; 2111, output shaft; 213, air supply blower wheel; 215, air duct; 2151, air outlet; 2153, air inlet; 230, main machine housing; 231, front panel; 250, range hood part; 251, smoke guide plate; 253, range hood blower wheel. Detailed implementation manners

[0036] To make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0038] In addition, if there is a term "and / or", "and / or" is only a description of the association relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can represent the association relationship between A and B: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after it. If there are terms such as "first" and "second", these terms are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, four, five, etc., unless otherwise clearly and specifically defined.

[0039] In the present application, unless otherwise clearly specified and limited, if there are terms such as "install", "connect", "join", "fix", etc., these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the connection inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0040] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or the like, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate 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 intermediate element at the same time. If any, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0042] Referring to Figures 1 to 7 , a sweeping component 100 provided in an embodiment of the present application is used for a blowing part 210 and includes a guiding air panel 10 and a linkage mechanism 30. The guiding air panel 10 is rotatably disposed at an air outlet 2151 of the blowing part 210 and is configured to be able to rotate to close the air outlet 2151. The linkage mechanism 30 has a transmission state and a disconnection state that can be switched with each other. In the transmission state, the linkage mechanism 30 is in transmission connection with the blowing motor 211 of the guiding air panel 10 and the blowing part 210. In the disconnection state, the linkage mechanism 30 disconnects the transmission between the guiding air panel 10 and the blowing motor 211.

[0043] The blowing part 210 is used to form a blowing air flow and blow air outwards, and it can be specifically used in devices such as a range hood 200, an air conditioner, an air purifier, a humidifier, etc. The sweeping component 100 is used to guide the blowing air flow blown out from the air outlet 2151 and affect the final blowing angle. At the same time, the sweeping component 100 can also close the air outlet 2151 when there is no blowing.

[0044] It is understandable that the air guide panel 10 can rotate relative to the air outlet 2151 and accordingly has an open state in which the air outlet 2151 is not closed and a closed state in which the air outlet 2151 is closed. When the air guide panel 10 is in the open state, the air guide angle generated by the air flow blown out of the air outlet 2151 changes as the rotation angle changes, thereby helping the air supply unit 210 to achieve the wind sweeping function through rotation. When the air guide panel 10 is in the closed state, the air outlet 2151 is completely closed, so that the air outlet 2151 is sealed when the air supply unit 210 is not supplying air. Specifically, the way in which the air guide panel 10 closes the air outlet 2151 can be, but is not limited to, covering the entire air outlet 2151 from the outside of the air outlet 2151.

[0045] The linkage mechanism 30 has a transmission state and a disconnection state, and can be controlled to switch between the two states. In the transmission state, the air supply motor 211 can be connected to the air guide panel 10 through the linkage mechanism 30 and drive the air guide panel 10 to rotate. In the disconnection state, the air supply motor 211 cannot be connected to the air guide panel 10 through the linkage mechanism 30, and can no longer drive the air guide panel 10 to rotate.

[0046] Accordingly, the wind sweeping assembly 100 can have a wind sweeping state, a wind guiding state, and a covered state. When the linkage mechanism 30 is in the transmission state, the wind guide panel 10 can be driven by the air supply motor 211 to continuously rotate and continuously change its wind guiding angle for the air supply airflow. At this time, the wind sweeping assembly 100 is in the wind sweeping state. When the linkage mechanism 30 is in the disconnected state and the wind guide panel 10 is in the open state, the wind guide panel 10 stops and no longer rotates because it is no longer driven by an external force, and its wind guiding angle does not change. At this time, the wind sweeping assembly 100 is in the wind guiding state. When the linkage mechanism 30 is in the disconnected state and the wind guide panel 10 is in the closed state, the wind guide panel 10 seals the air outlet 2151, and the wind sweeping assembly 100 is in the covered state.

[0047] In one embodiment, the air sweeping assembly 100 is used in the air supply unit 210 of a range hood 200. The range hood 200 also includes a main housing 230 and a range hood unit 250. The main housing 230 has a front panel 231 located at the front. Specifically, the air outlet 2151 of the air supply unit 210 and the inhalation opening of the range hood unit 250 can both be formed on the front panel 231. The air outlet 2151 can be located above the inhalation opening and form an air outlet grille. The air guide panel 10 is rotatably connected to the front panel 231 and is located at the air outlet 2151.

[0048] The wind guide panel 10 can be rotated to an angle α of 0, 30°, or 43° with the front panel 231 (e.g. Figure 8 As shown, the arrows in the figure indicate the direction of airflow), 58° (as shown Figure 9As shown, the arrows in the figure indicate the direction of airflow), 69° (as Figure 10 As shown, the arrows in the figure indicate the direction of airflow), 90°, 100°, etc., which are not specifically limited here. It is easy to know that when the angle α between the air guide panel 10 and the front panel 231 is 0, it means that the air guide panel 10 is rotated to the closed air outlet 2151, the air sweeping assembly 100 is in the closed state, the air guide panel 10 is flush with the front panel 231, and the appearance consistency of the range hood 200 is better and more beautiful. In other words, when the air sweeping assembly 100 is in the air sweeping state, the angle α between the air guide panel 10 and the front panel 231 is constantly changing, and the air guide angle of the air guide panel 10 changes in real time. When the air sweeping assembly 100 is in the air guiding state, the angle α between the air guide panel 10 and the front panel 231 remains unchanged, and the air guide angle of the air guide panel 10 is determined. When the air sweeping assembly 100 is in the covered state, the angle α between the air guide panel 10 and the front panel 231 is 0.

[0049] The above-mentioned wind sweeping assembly 100, whose wind guide panel 10 can be driven to rotate by the air supply motor 211 under the transmission of the linkage mechanism 30, thereby realizing the wind sweeping function, without the need for a separate wind sweeping motor, which helps to reduce energy consumption. At the same time, the wind guide panel 10 can also be rotated to close the air outlet 2151, so as to seal the air outlet 2151 when the air supply unit 210 is not supplying air, thereby reducing the entry of oil smoke, water mist, etc. from the air outlet 2151 into the air supply unit 210. In addition, the linkage mechanism 30 can also be switched to a disconnected state, so that the transmission between the wind guide panel 10 and the air supply motor 211 is cut off, thereby making the wind guide panel 10 not driven and at a specific angle, realizing the wind guiding function at a specific angle. In this way, the wind sweeping assembly 100 can simultaneously be compatible with the functions of sweeping, guiding and sealing the air outlet 2151, and has lower power consumption.

[0050] In some embodiments, the linkage mechanism 30 includes a first transmission gear 31 and a second transmission gear 32. The first transmission gear 31 is transmission-connected to the output shaft 2111 of the air supply motor 211, and the second transmission gear 32 is transmission-connected to the air guide panel 10. In a transmission state, the first transmission gear 31 and the second transmission gear 32 are transmission-connected to enable a transmission connection between the air guide panel 10 and the air supply motor 211. In a disconnection state, the transmission between the first transmission gear 31 and the second transmission gear 32 is disconnected, so that the air guide panel 10 and the air supply motor 211 are no longer transmission-connected.

[0051] The first transmission gear 31 can be fixedly connected to the output shaft 2111 of the air supply motor 211, and thus rotates along with the output shaft 2111 of the air supply motor 211. When the first transmission gear 31 is in transmission connection with the second transmission gear 32, the first transmission gear 31 can drive the second transmission gear 32 to rotate, and the air guide panel 10 is then driven by the second transmission gear 32.

[0052] In this way, the linkage mechanism 30 can form a stable and disconnectable transmission capacity through the first transmission gear 31 and the second transmission gear 32, and can adjust the output speed of the air supply motor 211 by selecting a suitable number of teeth, so that the rotation speed of the air guide panel 10 meets the wind sweeping requirements.

[0053] In some embodiments, the linkage mechanism 30 further includes a connecting rod 33 and a crank 34. The first end of the connecting rod 33 is rotatably connected to the air deflector panel 10, and the rotation axis is parallel to and spaced from the rotation axis of the air deflector panel 10. One end of the crank 34 is coaxially connected to the second transmission gear 32 and can rotate with the second transmission gear 32, and the other end is rotatably connected to the second end of the connecting rod 33.

[0054] In other words, the second transmission gear 32 is connected to the wind guide panel 10 through the connecting rod 33 and the crank 34. The two ends of the connecting rod 33 are respectively connected to the crank 34 and the wind guide panel 10. The crank 34 rotates coaxially with the second transmission gear 32, thereby driving the connecting rod 33 to move and drive the wind guide panel 10 to rotate around its rotation axis.

[0055] The connecting rod 33 and the crank 34 can be made of aluminum alloy and are both machined by CNC machine tools. The crank 34 is relatively short in length, ranging from 30mm to 40mm, and the connecting rod 33 can range from 120mm to 130mm.

[0056] In this way, the linkage mechanism 30 can be connected to the wind guide panel 10 through the crank 34 and the connecting rod 33, and transmit the power output by the air supply motor 211 to the wind guide panel 10 through the first transmission gear 31, the second transmission gear 32, the crank 34 and the connecting rod 33 in sequence.

[0057] In some other embodiments, the connecting rod may also be directly rotatably connected to the second transmission gear 32, and the connection position is spaced from the rotation axis of the second transmission gear 32; or, the second transmission gear 32 is connected to the wind guide panel 10 through a pulley, a transmission belt or other structures. It is only necessary to enable the second transmission gear 32 to drive the wind guide panel 10 to rotate, and no specific limitation is made here.

[0058] Please also refer to Figure 11 Furthermore, the distance between the rotation axis of the first end of the connecting rod 33 and the rotation axis of the wind guide panel 10 is a; the distance between the first end and the second end of the connecting rod 33 is b; the rotation axis of the wind guide panel 10 and the rotation axis of the second transmission gear 32 are arranged parallel to each other, and the distance between the two rotation axes is c; the distance between the two ends of the crank 34 is d, then a>d, c>d, b>d, a+c>b+d, a+b>c+d.

[0059] In this way, the crank 34 can rotate continuously along with the second transmission gear 32 for a full circle, and drive the air guide panel 10 to swing cyclically within a specific angle range to sweep the air.

[0060] Please also refer to Figure 12 In some embodiments, the linkage mechanism 30 further includes a third transmission gear 35 that is movable and has a coupled position and a disconnected position. When the third transmission gear 35 moves to the coupled position, it engages with the first transmission gear 31 and the second transmission gear 32, and the linkage mechanism 30 is in a coupled state. When the third transmission gear 35 moves to the disconnected position, it separates from the first transmission gear 31 and the second transmission gear 32, and the linkage mechanism 30 is in a disconnected state.

[0061] It can be understood that the first transmission gear 31 and the second transmission gear 32 are spaced apart. When the third transmission gear 35 is engaged with the first transmission gear 31 and the second transmission gear 32, the first transmission gear 31 and the second transmission gear 32 can be transmitted through the third transmission gear 35. When the third transmission gear 35 moves to the disconnected position, the first transmission gear 31 and the second transmission gear 32 are spaced apart from each other, so the two cannot transmit.

[0062] The movement mode of the third transmission gear 35 can be, but is not limited to, translation, rotation, etc., as long as it can achieve a change in position state and then achieve switching between engagement and separation between the first transmission gear 31 and the second transmission gear 32. No specific limitation is made here.

[0063] The first transmission gear 31, the second transmission gear 32, and the third transmission gear 35 can be made of aluminum alloy and machined using a CNC machine tool, achieving high dimensional accuracy and a tight fit. Furthermore, the air sweep assembly 100 includes a plurality of gear brackets 50, which are used to secure the first transmission gear 31, the second transmission gear 32, and the third transmission gear 35. The gear brackets 50 can be stamped from a thin sheet metal material.

[0064] In this way, the first transmission gear 31 and the second transmission gear 32 can be set at relatively fixed positions, and the linkage mechanism 30 can be switched between the transmission state and the disconnection state only by moving the third transmission gear 35 .

[0065] Furthermore, the rotation axes of the first transmission gear 31, the second transmission gear 32 and the third transmission gear 35 are arranged parallel to each other, and the linkage mechanism 30 further includes a telescopic motor (not shown), which is connected to the third transmission gear 35 and is configured to drive the third transmission gear 35 to move along its own axial direction (the moving direction corresponds to Figure 12in the left - right direction) to switch between the linkage position and the disconnection position.

[0066] When the third transmission gear 35 is in the linkage position, the first transmission gear 31, the third transmission gear 35, and the second transmission gear 32 are arranged adjacent to each other in sequence. The third transmission gear 35 is located between the first transmission gear 31 and the second transmission gear 32 and meshes with both of them. At this time, the telescopic motor can drive the third transmission gear 35 to translate through telescoping, so as to disengage from the first transmission gear 31 and the second transmission gear 32, and a vacant position is formed between the first transmission gear 31 and the second transmission gear 32. On the contrary, when the third transmission gear 35 is in the disconnection position, the telescopic motor can drive the third transmission gear 35 to translate through telescoping, so that the third transmission gear 35 moves between the first transmission gear 31 and the second transmission gear 32 and meshes with both of them.

[0067] Specifically, when the telescopic motor extends, it can push the third transmission gear 35 to the disconnection position. When the telescopic motor retracts, it can pull the third transmission gear 35 to the linkage position. In some other embodiments, when the telescopic motor extends, it can also push the third transmission gear 35 to the linkage position. When the telescopic motor retracts, it can pull the third transmission gear 35 to the disconnection position.

[0068] In this way, the resistance to the movement of the third transmission gear 35 is small, and it translates under the drive of the telescopic motor, making it easier to accurately locate the linkage position and the disconnection position.

[0069] In some other embodiments, the movement of the third transmission gear 35 can also be realized by manual drive, which is not specifically limited here.

[0070] In some embodiments, the air - sweeping component 100 further includes a locking structure (not shown in the figure). The locking structure is provided on the air - guiding panel 10 and / or the linkage mechanism 30 and is configured to lock the air - guiding panel 10 in the rotation direction of the air - guiding panel 10 when the linkage mechanism 30 is in the disconnection state.

[0071] In this way, when the linkage mechanism 30 is in the disconnection state, the locking structure can help prevent the air - guiding panel 10 from rotating, improving the stability of the air - guiding angle of the air - sweeping component 100 in the air - guiding state.

[0072] Further, the locking structure is a damping self - locking structure. Specifically, the damping self - locking structure can be padded at the rotation part of at least one of the air - guiding panel 10, the first transmission gear 31, and the second transmission gear 32.

[0073] In this way, when the linkage mechanism 30 is in the disconnection state, without external force input, the damping self - locking structure can block the rotation of the air - guiding panel 10 by itself. When the linkage mechanism 30 is in the transmission state, the air - supply motor 211 can overcome this resistance to drive the air - guiding panel 10 to rotate.

[0074] In some embodiments, the air guide panel 10 is disposed outside the air outlet 2151 , and the rotation axis of the air guide panel 10 is located at the top of the air outlet 2151 .

[0075] Specifically, the rotation axis of the air guide panel 10 can be located at the top of the range hood 200. The front panel 231 of the range hood 200 can be made of glass. The air guide panel 10 can include a glass panel 11, a sheet metal bracket 13, and a hinge 15. The glass panel 11 is affixed to the sheet metal bracket 13. The glass panel 11 and the glass of the front panel 231 of the range hood 200 are the same material and color, and are used to enhance the aesthetics of the entire range hood when closed. One side of the sheet metal bracket 13 is connected to one end of the hinge 15, connecting two hinges 15 in total. The hinge 15 is then rotatably connected to the main body housing 230.

[0076] In this way, the wind sweeping assembly 100 is in a closed state, and the wind guide panel 10 can completely cover the air outlet 2151 and be flush with the front panel 231 .

[0077] In some other embodiments, the air guide panel 10 may also include at least two sub-panels, each sub-panel is rotatably arranged at the air outlet 2151, and all sub-panels are linked to each other to form an air guide grille, and the air supply motor 211 can drive all sub-panels to rotate at the same time through the linkage mechanism 30.

[0078] In some embodiments, the wind sweeping assembly 100 further includes a closing mechanism (not shown), which is transmission-connected to the wind guide panel 10 and configured to drive the wind guide panel 10 to rotate to close the air outlet 2151 .

[0079] Specifically, the closing mechanism can be connected to the crank 34 and rotate the crank 34 to tighten the air guide panel 10. The closing mechanism can be a closing motor or an elastic member, etc., as long as it can apply an external force to drive the air guide panel 10 to switch to the closed state, and is not specifically limited here.

[0080] It is understandable that before closing the wind guide panel 10 through the closing mechanism, the linkage mechanism 30 may be switched to the disconnected state first, so as to reduce interference in closing the wind guide panel 10 .

[0081] In this way, the air guide panel 10 can be tightly closed through a special closing mechanism, which helps to reduce the difficulty of rotating it to close the air outlet 2151.

[0082] In some other embodiments, the wind sweeping component 100 may also include an angle detection sensor, and is used to detect the angle α between the wind guide panel 10 and the front panel 231, so that when α is 0°, the linkage mechanism 30 is controlled to switch to the disconnected state, so that the wind guide panel 10 stays in the closed position, thereby achieving the closure of the wind guide panel 10.

[0083] The above-mentioned air-sweeping component 100 utilizes the linkage mechanism 30 with a crank 34 and a connecting rod 33 to achieve the air-sweeping and closing functions of the air guide panel 10. When the air guide panel 10 is in the closed state, the closing motor tightens the air guide panel 10 to be flush with the front panel 231 of the range hood 200, improving the overall aesthetic appearance of the whole machine. When the air guide panel 10 is in the open state, it can rotate with the air-sending impeller 213 for air-sweeping, or it can be fixed at a certain angle for air guiding without following the impeller for air-sweeping, which can be selected by the user to meet the user's requirements for the overall aesthetic appearance and the multi-functionality of the air guide panel 10, enhancing the comfort and multi-functionality of the whole machine. If it is necessary to enable the air-sweeping state of the air-sweeping component 100, the third transmission gear 35 is pushed to the meshing position meshing with the first transmission gear 31 and the second transmission gear 32, so as to realize the power transmission of the output shaft 2111 of the air-sending motor 211 to the crank 34. The crank 34 makes a full-circle rotational motion, and the values of the crank 34 and the connecting rod 33 need to satisfy: d < c, d < a, d < b, a + c > b + d, a + b > c + d, so as to realize the full-circle rotational motion of the crank 34. The connecting rod 33 makes a reciprocating swinging motion within a controllable range to drive the air guide panel 10 to swing cyclically around the hinge 15, that is, the opening and closing angle of the hinge 15 changes, so as to divert the air blown out from the air outlet 2151 and realize the air-sweeping effect. If it is necessary to stop the air-sweeping state of the air-sweeping component 100, the third transmission gear 35 is pulled to the disconnection position where it does not mesh with the first transmission gear 31 and the second transmission gear 32, so that the power of the output shaft 2111 of the air-sending motor 211 is no longer transmitted to the crank 34. Then the crank 34 does not make a full-circle rotational motion, and at this time, the crank 34 has a damping self-locking function and will keep a certain position unchanged, realizing the fixed-direction air-guiding effect. The third transmission gear 35 is axially connected to the telescopic motor, and the telescopic motor is mainly responsible for pushing the third transmission gear 35 to move axially. When the telescopic motor is in the extended state, it means that the third transmission gear 35 is in the state of being disconnected from the first transmission gear 31 and the second transmission gear 32. When the telescopic motor is in the retracted state, it means that the third transmission gear 35 is in the state of meshing with the first transmission gear 31 and the second transmission gear 32.

[0084] This application also provides an air-sending part 210, which includes the above-mentioned air-sweeping component 100. Among them, the air-sending part 210 can be used in the range hood 200 and can send air outwards to cool and provide a cool environment for users in the kitchen. In addition, the air-sending part 210 can also be used in devices such as air conditioners, air purifiers, and humidifiers for sending air outwards.

[0085] To realize its normal function, the air-sending part 210 includes an air-sending impeller 213 and an air-sending motor 211 for driving the air-sending impeller 213. In addition, the air-sending part 210 may also include an air duct 215, and the air-sending impeller 213 is arranged in the air duct 215.

[0086] Understandably, the air duct 215 forms an air inlet 2153 and an air outlet 2151, and the air outlet 2151 is specifically located on the front panel 231. When the air guiding panel 10 is opened, the air supply impeller 213 can drive the air flow to flow from the air inlet 2153 to the air outlet 2151 to form an air supply air flow under the drive of the air supply motor 211, and the air supply air flow is finally blown out under the guidance of the air guiding panel 10.

[0087] Among them, the air supply impeller 213 can be a cross-flow impeller, and the output shaft 2111 of the air supply motor 211 and the air supply impeller 213 can be coaxially arranged. Specifically, the air supply impeller 213 can be sleeved on the output shaft 2111 of the air supply motor 211 and is coaxial with the first transmission gear 31.

[0088] Please refer to Figure 13 at the same time. The present application also provides an oil fume extractor 200, including the above-mentioned air sweeping component 100 or the above-mentioned air supply part 210. Understandably, the oil fume extractor 200 can be, but is not limited to, a fan type oil fume extractor, an air conditioner type oil fume extractor, etc., and no specific limitation is made here.

[0089] To realize its normal function, the oil fume extractor 200 further includes a fume machine part 250. The fume machine part 250 and the air supply part 210 share the same main machine housing 230. Among them, the air supply part 210 is arranged at the top position. The fume machine part 250 includes a smoke guiding plate 251 and a fume machine impeller 253. The main body housing also forms a smoke suction port. The smoke guiding plate 251 is arranged at the smoke suction port in a switchable manner. The fume machine impeller 253 is arranged in the main machine housing 230 and is used to generate suction to suck cooking fumes from the smoke suction port.

[0090] The smoke guiding plate 251 and the air guiding panel 10 can work independently of each other. That is, the air guiding panel 10 can be opened and closed separately and perform air sweeping, and the oil fume extractor 200 performs air supply work. The smoke guiding plate 251 can also be opened separately, and the oil fume extractor 200 performs oil fume suction work. In addition, the air guiding panel 10 and the smoke guiding plate 251 can also be opened simultaneously, and the oil fume extractor 200 performs air supply work and oil fume suction work simultaneously, and no specific limitation is made here.

[0091] Please refer to Figure 14 at the same time. The present application also provides a control method for an air sweeping component, which is used to control the above-mentioned air sweeping component, including:

[0092] S100. Judge whether the air supply function of the air supply part is closed.

[0093] Whether the air supply function is closed can be realized by continuously obtaining the instruction input situation. That is, if an instruction to stop the air supply function is received, it means that the air supply function is closed.

[0094] If the air supply function of the air supply part is closed, then execute: S300. Obtain the state of the linkage mechanism.

[0095] Specifically, the state of the linkage mechanism is mainly determined by the position of the third transmission gear, and the position of the third transmission gear is controlled by the telescopic motor. Therefore, the extended state and the retracted state of the telescopic motor respectively correspond to the state of the linkage mechanism, and obtaining the state of the linkage mechanism can be achieved by obtaining the state of the telescopic motor.

[0096] S500. Determine whether the linkage mechanism is in the disconnected state.

[0097] Determining whether the linkage mechanism is in the disconnected state can be achieved by judging the telescopic state of the telescopic motor. Specifically, when the telescopic motor is in the extended state, the linkage mechanism is in the disconnected state.

[0098] If the linkage mechanism is in the disconnected state, then execute: S701. Control the closing mechanism to drive the air deflector panel to close the air outlet; if the linkage mechanism is not in the disconnected state, then execute: S703. Control the linkage mechanism to switch to the disconnected state; S701. Control the closing mechanism to drive the air deflector panel to close the air outlet.

[0099] Among them, controlling the closing mechanism to drive the air deflector panel to close the air outlet can be achieved by energizing the closing motor, and the closing motor tightens the air deflector panel. Controlling the linkage mechanism to switch to the disconnected state can be achieved by controlling the telescopic motor to switch to the extended state.

[0100] For the above control method of the air sweeping component, the air deflector panel can first determine that the linkage mechanism is in the disconnected state before closing, so as to reduce the difficulty of the closing mechanism driving the air deflector panel to rotate to close the air outlet.

[0101] In some embodiments, if the linkage mechanism is not in the disconnected state, before the step of controlling the linkage mechanism to switch to the disconnected state, that is, step S703, the control method of the air sweeping component further includes:

[0102] Detect the movement trajectory of the air deflector panel; judge whether the air deflector panel is in the swinging-back state and the angle α between the air deflector panel and the front panel is not greater than 45°; if so, then execute step S703; if not, then return to the step: detect the movement trajectory of the air deflector panel until the air deflector panel is in the swinging-back state, and execute step S703.

[0103] Among them, the air supply motor can be a stepper motor, and the air deflector panel can judge whether it is in the outward swinging state or the swinging-back state according to the number of steps of the stepper motor. And only when it is in the swinging-back state and the angle α is not greater than 45°, the closing motor as the closing mechanism is controlled to drive and close the air deflector panel.

[0104] In this way, only when the air deflector panel is in the swinging-back state and the angle α is not greater than 45°, the closing mechanism is used to drive the air deflector panel to close the air outlet, which helps to reduce the difficulty of the closing mechanism driving the air deflector panel to close the air outlet.

[0105] For the control method of the air sweeping component described above, when the user turns off the air supply function of the air supply part, the system will detect the state of the telescopic motor. Judgment logic: ① If the telescopic motor is in the extended state, that is, the first transmission gear is disengaged from the second transmission gear, the closing motor is powered on, and automatically powered off after tightening the air deflector panel. If the telescopic motor is in the retracted state, that is, the first transmission gear is meshed with the second transmission gear, the system will proceed to the next step to detect the movement trajectory of the air deflector panel. ② If the air deflector panel is in the swinging-back state, that is, the hinge opening and closing angle ≤ 45°, the telescopic motor is powered on and extended, the meshing between the first transmission gear and the second transmission gear is disengaged, and then the closing motor is powered on and automatically powered off after tightening the air deflector panel; if the air deflector panel is not in the swinging-back state, that is, the air deflector panel is in the swinging-out state, the system returns to the previous step to continue detecting the movement trajectory of the air sweeping panel until it is detected that the air deflector panel is in the swinging-back state and then the next action is taken.

[0106] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope recorded in this specification.

[0107] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A wind sweeping assembly, characterized in that: For the air supply unit, the air sweeping assembly includes: An air guide panel (10) is rotatably provided at the air outlet (2151) of the air supply portion and is configured to be rotatable to close the air outlet (2151); and The linkage mechanism (30) has a transmission state and a disconnection state that can be switched between each other. In the transmission state, the linkage mechanism (30) transmission-connects the air guide panel (10) and the air supply motor (211) of the air supply unit. In the disconnection state, the linkage mechanism (30) disconnects the transmission between the air guide panel (10) and the air supply motor (211).

2. The air sweeping assembly according to claim 1, characterized in that: The linkage mechanism (30) includes a first transmission gear (31) and a second transmission gear (32), wherein the first transmission gear (31) is transmission-connected to the output shaft (2111) of the air supply motor (211), and the second transmission gear (32) is transmission-connected to the air guide panel (10), and in the transmission state, the first transmission gear (31) is transmission-connected to the second transmission gear (32), and in the disconnection state, the transmission between the first transmission gear (31) and the second transmission gear (32) is disconnected.

3. The wind sweeping assembly according to claim 2, characterized in that: The linkage mechanism (30) further includes a third transmission gear (35), which is movably arranged and has a linkage position and a disconnection position that can be switched by movement; when the third transmission gear (35) moves to the linkage position, the third transmission gear (35) engages with the first transmission gear (31) and the second transmission gear (32), and the linkage mechanism (30) is in the transmission state; when the third transmission gear (35) moves to the disconnection position, the third transmission gear (35) is separated from the first transmission gear (31) and the second transmission gear (32), and the linkage mechanism (30) is in the disconnection state.

4. The wind sweeping assembly according to claim 3, characterized in that: The rotation axes of the first transmission gear (31), the second transmission gear (32), and the third transmission gear (35) are arranged parallel to each other. The linkage mechanism (30) further includes a telescopic motor, which is connected to the third transmission gear (35) and is configured to drive the third transmission gear (35) to move along its own axial direction to switch between the linkage position and the disconnection position.

5. The wind sweeping assembly according to claim 2, characterized in that: The linkage mechanism (30) further comprises a connecting rod (33) and a crank (34); the first end of the connecting rod (33) is rotatably connected to the wind guide panel (10), and the rotation axis is parallel to and spaced from the rotation axis of the wind guide panel (10); one end of the crank (34) is coaxially connected to the second transmission gear (32) and can rotate along with the second transmission gear (32), and the other end is rotatably connected to the second end of the connecting rod (33).

6. The wind sweeping assembly according to claim 5, characterized in that: The distance between the rotation axis of the first end of the connecting rod (33) and the rotation axis of the wind guide panel (10) is a; the distance between the first end and the second end of the connecting rod (33) is b; the rotation axis of the wind guide panel (10) and the rotation axis of the second transmission gear (32) are arranged parallel to each other, and the distance between the two rotation axes is c; the distance between the two ends of the crank (34) is d, then a>d, c>d, b>d, a+c>b+d, a+b>c+d.

7. The wind sweeping assembly according to claim 1, characterized in that: The wind sweeping assembly further comprises a locking structure, which is provided on the wind guide panel (10) and / or the linkage mechanism (30) and is configured to lock the wind guide panel (10) in the rotational direction of the wind guide panel (10) when the linkage mechanism (30) is in a disconnected state.

8. The wind sweeping assembly according to claim 7, characterized in that: The locking structure is a damping self-locking structure.

9. The wind sweeping assembly according to claim 1, characterized in that: The wind guide panel (10) is arranged outside the air outlet (2151), and the rotation axis of the wind guide panel (10) is located at the top of the air outlet (2151).

10. The wind sweeping assembly according to any one of claims 1 to 9, characterized in that: The wind sweeping assembly further comprises a closing mechanism, which is transmission-connected to the wind guide panel (10) and is configured to be able to drive the wind guide panel (10) to rotate to close the air outlet (2151).

11. An air supply unit, characterized in that: It comprises the wind sweeping assembly according to any one of claims 1 to 10.

12. A range hood, characterized in that: It comprises the wind sweeping component according to any one of claims 1 to 10 or the air supply part according to claim 11.

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