A control method, range hood, device, and storage medium

Abstract

The present application relates to the kitchen electrical technology field, especially control method, range hood, equipment and storage medium. The control method includes controlling the rotation of the impeller; controlling the movement of the cleaning device relative to the fan and emitting cleaning fluid to the rotating impeller, so that the emitted cleaning fluid moves reciprocatingly between the two ends of the jet area at the impeller in the direction of the impeller axis; at least one of the rotation of the impeller or the reciprocating movement of the jet area is variable speed movement. Through the movement of the impeller and the movement of the cleaning device, at least one of the rotation of the impeller or the reciprocating movement of the jet area is variable speed movement, and after a short time, the cleaning fluid can realize full coverage of the impeller, and realize fast and full cleaning effect of the impeller. The range hood can realize fast and full cleaning effect of the impeller.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a control method, a range hood, an equipment, and a storage medium. Background Technology

[0002] After several years of use, range hoods on the market often develop severe grease buildup in their casings and impellers. This grease affects the casing's curves, leading to blockages and increased load. Grease buildup inside the impeller also affects airflow and pressure, impacting the range hood's performance. Furthermore, grease buildup inside the impeller can cause unpleasant odors, affecting kitchen air quality and people's health. Therefore, cleaning the range hood is necessary.

[0003] An existing range hood includes a cleaning device, which comprises a water source, a steam generator, a water pump, and a spray pipe connected in sequence. The water pump delivers water from the water source to the steam generator, which heats the water into hot water and / or high-temperature steam. The spray pipe sprays the hot water and / or high-temperature steam onto the volute and impeller to clean the volute and impeller.

[0004] Currently, the existing nozzles are in fixed positions, and the water vapor sprayed from the nozzles covers a small area of ​​the impeller, resulting in poor cleaning effect of the cleaning device on the impeller. Summary of the Invention

[0005] According to one aspect of the present invention, a control method is proposed to achieve a rapid and comprehensive cleaning effect on the impeller.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A control method for controlling a range hood, the range hood including a fan and a cleaning device, the fan including an impeller;

[0008] Control methods include:

[0009] Control the impeller rotation;

[0010] The cleaning device is controlled to move relative to the fan and eject cleaning fluid to the rotating impeller, so that the spray area of ​​the ejected cleaning fluid toward the impeller reciprocates between the two ends in the direction of the impeller axis; wherein at least one of the rotation of the impeller or the reciprocating movement of the spray area is a variable speed motion.

[0011] As a preferred embodiment, the steps for controlling the impeller rotation include:

[0012] The speed of the impeller increases with the increase of the impeller's running time.

[0013] As a preferred embodiment, the step of controlling the impeller speed to increase with the increase of impeller running time includes:

[0014] Impellers are categorized into low-end, medium-end, and high-end, ranging from low to high.

[0015] Control the impeller to run at low speed for a first preset time period;

[0016] When the first preset time period ends, control the impeller to run at medium speed for the second preset time period;

[0017] When the second preset time period ends, control the impeller to run at high speed for the third preset time period;

[0018] The second preset time period is longer than the first preset time period but shorter than the third preset time period.

[0019] As a preferred embodiment, the range hood includes a heating device for heating the fan;

[0020] Control methods also include:

[0021] The operating status of the heating device, impeller, and cleaning device is controlled according to the type of oil accumulation in the fan.

[0022] As a preferred option, the type of oil accumulation in the fan is determined as follows:

[0023] Obtain the test parameters of the wind turbine;

[0024] Compare the test parameters with the corresponding preset parameters;

[0025] The type of oil accumulation was determined based on the comparison results.

[0026] According to another aspect of the present invention, a range hood is provided that achieves a rapid and comprehensive cleaning effect on the impeller.

[0027] To achieve the above objectives, the present invention adopts the following technical solution:

[0028] A range hood, comprising:

[0029] Fans and cleaning devices, the fans including impellers;

[0030] The control module employs the control method described above.

[0031] As a preferred embodiment, the range hood also includes a drive unit, and the cleaning device is disposed on one side of the impeller along its axial direction. The drive unit drives the cleaning device to swing around a first direction, which is perpendicular to or opposite to the axis of the impeller.

[0032] As a preferred option, the fan is a dual-inlet fan, which includes two air inlets. The cleaning device is located on the outside of the air inlets, and each air inlet is equipped with a corresponding cleaning device.

[0033] As a preferred embodiment, one cleaning device is located above or on the upper part of the impeller, and the other cleaning device is located below or on the lower part of the impeller. The range hood includes a central disc and a rotating disc, and the central disc and / or the rotating disc have through holes.

[0034] As a preferred embodiment, the cleaning device extends along a first direction and is provided with at least two jet ports, which are arranged at intervals along the first direction.

[0035] As a preferred option, the range hood also includes:

[0036] The heating device is in direct or indirect contact with the fan and can heat the fan.

[0037] According to another aspect of the present invention, an apparatus is provided, the apparatus comprising:

[0038] One or more processors;

[0039] Storage device for storing one or more programs;

[0040] When one or more programs are executed by one or more processors, the one or more processors implement the control method described above.

[0041] According to another aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, wherein the program, when executed by a processor, implements the control method described above.

[0042] The beneficial effects of this invention are:

[0043] The control method provided by this invention includes controlling the rotation of an impeller; controlling the movement of a cleaning device relative to a fan and ejecting cleaning fluid onto the rotating impeller, so that the spray area of ​​the ejected cleaning fluid reciprocates between the two ends in the direction of the impeller axis; and controlling at least one of the rotation of the impeller or the reciprocating movement of the spray area to be a variable speed motion. By combining the movement of the impeller and the movement of the cleaning device, and controlling at least one of the rotation of the impeller or the reciprocating movement of the spray area to be a variable speed motion, the cleaning fluid can achieve complete coverage of the impeller in a relatively short time, achieving a rapid and comprehensive cleaning effect on the impeller.

[0044] The range hood provided by the present invention includes a fan, a cleaning device, and a control module. The fan includes an impeller. The control module adopts the control method described above. By combining the movement of the impeller and the movement of the cleaning device, at least one of the rotation of the impeller or the reciprocating movement of the spray zone is controlled to be a variable speed movement. After a short time, the cleaning fluid can fully cover the impeller, achieving a rapid and comprehensive cleaning effect on the impeller. Attached Figure Description

[0045] Figure 1 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention. Figure 1 ;

[0046] Figure 2 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention. Figure 2 ;

[0047] Figure 3 This is a schematic diagram of the impeller structure provided in Embodiment 1 of the present invention;

[0048] Figure 4 This is a schematic diagram of the cleaning device, driving device, oil collection mechanism and flow guiding device provided in Embodiment 1 of the present invention;

[0049] Figure 5 This is a cross-sectional view of the first cleaning device provided in Embodiment 1 of the present invention;

[0050] Figure 6 This is a cross-sectional view of the second cleaning device provided in Embodiment 1 of the present invention;

[0051] Figure 7 This is a cross-sectional view of the third cleaning device provided in Embodiment 1 of the present invention;

[0052] Figure 8 This is a cross-sectional view of the fourth cleaning device provided in Embodiment 1 of the present invention;

[0053] Figure 9 This is a cross-sectional view of the fifth cleaning device provided in Embodiment 1 of the present invention;

[0054] Figure 10 This is a cross-sectional view of the sixth cleaning device provided in Embodiment 1 of the present invention;

[0055] Figure 11 This is a schematic diagram of the structure of the fan, cleaning device, oil collection mechanism, flow guiding device and heating device provided in Embodiment 1 of the present invention;

[0056] Figure 12 This is a flowchart of the control method provided in Embodiment 2 of the present invention;

[0057] Figure 13 This is a flowchart of the control method provided in Embodiment 3 of the present invention;

[0058] Figure 14 This is a schematic diagram of the device provided in Embodiment 4 of the present invention.

[0059] In the picture:

[0060] 100. Range hood;

[0061] 10. Fan; 11. Impeller; 111. Front ring; 112. Rear ring; 113. Blade; 114. Middle disc; 115. Wheel disc; 116. Through hole; 12. Volute; 121. Air inlet; 122. Oil drain; 13. Motor; 131. Motor body; 132. Output shaft;

[0062] 20. Cleaning device; 21. Nozzle; 211. Channel; 2111. Air intake channel; 2112. Intake chamber; 2113. Jet channel; 21131. Jet port; 22. Heating mechanism; 23. Intake mechanism; 24. Conduit; 25. Temperature detection mechanism;

[0063] 30. Drive unit; 31. Body; 32. Output end;

[0064] 40. Oil stain collection mechanism; 41. Base plate; 42. Side plate; 43. Accommodation space;

[0065] 50. Flow guiding device; 51. Flow guide plate;

[0066] 60. Heating device; 61. First heating element; 62. Second heating element;

[0067] 70. Shell;

[0068] 80. Placement space;

[0069] 120. Device; 140. External device; 160. Processing unit; 180. System memory; 200. Network adapter; 220. I / O interface; 240. Display; 280. Bus; 300. RAM; 320. Cache memory; 340. Storage system; 400. Program / utility; 420. Program module. Detailed Implementation

[0070] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0071] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0072] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0074] Example 1

[0075] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a range hood 100, which includes a housing 70 and a fan 10 disposed within the housing 70. In this embodiment, the range hood 100 can be a top-mounted range hood or a side-mounted range hood, or alternatively, any other type of range hood.

[0076] like Figure 1 and Figure 2 As shown, in this embodiment of the disclosure, the fan 10 is a centrifugal fan, which includes a volute 12, an impeller 11, and a motor 13. The impeller 11 is disposed inside the volute 12, and the motor 13 drives the impeller 11 to rotate. Figure 1 and Figure 3 As shown, the impeller 11 includes a front ring 111, a rear ring 112, and blades 113, with the blades 113 disposed between the front ring 111 and the rear ring 112. Figure 1 and Figure 3 As shown, there are multiple blades 113, which are arranged at intervals along the circumference of the impeller 11 (the circumference of the front ring 111 or the rear ring 112). Furthermore, as... Figure 1 and Figure 3 As shown, the impeller 11 also includes a central disk 114, which is spaced between the front ring 111 and the rear ring 112, and the blades 113 pass through the central disk 114. Figures 1-3 As shown, a wheel 115 is provided in the middle of the central disk 114. The motor 13 includes a motor body 131 and an output shaft 132. The output shaft 132 passes through the wheel 115 and is fixed to the impeller 11. When the motor 13 starts, it can drive the impeller 11 to rotate.

[0077] After several years of use, range hoods on the market often develop severe grease buildup in their casings and impellers. This grease affects the casing's curves, leading to blockages and increased load. Grease buildup inside the impeller also affects airflow and pressure, impacting the range hood's performance. Furthermore, grease buildup inside the impeller causes unpleasant odors, affecting kitchen air quality and people's health. Therefore, cleaning the range hood is necessary.

[0078] An existing range hood includes a cleaning device (not shown in the figure). The cleaning device comprises a water source, a steam generator, a water pump, and a spray nozzle connected in sequence. The water pump delivers water from the water source to the steam generator, which heats the water into hot water and / or high-temperature steam. The spray nozzle then sprays the hot water and / or high-temperature steam onto the volute and impeller to clean them. The water source is typically tap water. When heated in the steam generator, tap water produces a large amount of limescale, which clogs the nozzle orifices, reducing the spray force and cleaning effect. Furthermore, over long-term use, the limescale formed from the tap water sprayed from the nozzle adheres to the impeller and volute, affecting the range hood's smoke extraction efficiency.

[0079] To solve the above problems, such as Figure 1 As shown, the range hood 100 also includes a cleaning device 20, such as... Figure 4 and Figure 5 As shown, the cleaning device 20 includes a nozzle 21, a heating mechanism 22, and a suction mechanism 23. The nozzle 21 has a channel 211. The suction mechanism 23 drives the gas outside the nozzle 21 to flow to the heating mechanism 22 for heating, and then ejects the heated gas from the channel 211 and sprays it onto the nozzle. Figure 1 The blower 10 in the middle sprays a hot jet from the channel 211, which heats the oil slick and uses the impact force to achieve the desired effect. Figure 1 The oil stains attached to the volute 12 and impeller 11 are effectively cleaned.

[0080] First, by eliminating the existing steam cleaning method, scale buildup can be avoided from clogging the nozzle 21, ensuring that the hot jet ejected by the cleaning device 20 can maintain a large jet force for a long time, thus ensuring a good cleaning effect of the cleaning device 20 on the fan 10.

[0081] Secondly, during long-term use, the hot jet sprayed from the channel 211 by the cleaning device 20 can avoid the existing problem of a large amount of scale adhering to the impeller 11 and the volute 12, ensuring that the range hood 100 has a better oil fume extraction effect.

[0082] Of course, in other embodiments, the cleaning device is not limited to the above-mentioned hot air cleaning method. The fluid sprayed by the cleaning device can also be cleaning liquid or water, etc. The present disclosure does not specifically limit the specific form of the cleaning fluid. All fluids that can clean the impeller are within the protection scope of the present disclosure.

[0083] like Figure 5 As shown, both the heating mechanism 22 and the suction mechanism 23 are located inside the channel 211. The nozzle 21 can provide a certain degree of protection for the heating mechanism 22 and the suction mechanism 23. When the range hood 100 is working, it can reduce the pollution of the heating mechanism 22 and the suction mechanism 23 by oil fumes, ensuring a better cleaning effect of the cleaning device 20 afterwards. In addition, as Figure 5 As shown, the suction mechanism 23 and the heating mechanism 22 are respectively engaged with the side wall of the channel 211 to avoid the risk of the suction mechanism 23 and the heating mechanism 22 falling out of the nozzle 21.

[0084] In addition, combined Figure 1 and Figure 5 As shown, the heating mechanism 22 is located downstream of the suction mechanism 23, which is located in the external space near the nozzle 21. The suction mechanism 23 can better draw the gas outside the nozzle 21 into the channel 211.

[0085] like Figure 5 As shown, channel 211 includes an intake channel 2111, an intake chamber 2112, and a jet channel 2113 connected in sequence. The intake channel 2111 allows external gas to enter the nozzle 21, the jet channel 2113 discharges the hot jet, and the intake chamber 2112 temporarily stores the heated gas. The spaces of the intake channel 2111 and the jet channel 2113 are smaller than the space of the intake chamber 2112, which increases the speed at which external gas enters the nozzle 21 and also improves the effect of rapidly ejecting the heated gas from the nozzle 21. Figure 5 As shown, the free end of the jet channel 2113 forms a jet port 21131 on the nozzle 21, and the jet port 21131 is used for the injection of hot jet.

[0086] Furthermore, existing cleaning devices occupy a significant amount of space, which is difficult for current product sizes to accommodate, resulting in an overall oversized range hood. Additionally, existing cleaning devices require substantial modifications to the original structure of the range hood, potentially affecting its smoke extraction efficiency.

[0087] To solve the above problems, such as Figure 4 and Figure 5 As shown, the nozzle 21 in this embodiment is generally plate-shaped or columnar. The thickness or diameter of the nozzle 21 is 10mm to 40mm. The maximum length or axial distance of the nozzle 21 is 40mm to 200mm. The heating mechanism 22 uses a heating wire or similar component that matches the size of the channel 211. The suction mechanism 23 uses a fan or similar component that matches the size of the channel 211. The assembled cleaning device 20 has a small overall volume, making it suitable for use in existing range hoods. Furthermore, the cleaning device 20 only requires simple assembly to achieve good application in existing range hoods without significantly altering their structure. This does not significantly affect the range hood's smoke extraction effect and ensures consistently good smoke extraction performance.

[0088] In other embodiments, such as Figure 6 As shown, two heating mechanisms 22 and one suction mechanism 23 are configured. One heating mechanism 22 is located upstream of the suction mechanism 23, and the other heating mechanism 22 is located downstream of the suction mechanism 23. By configuring two heating mechanisms 22, a more thorough heating effect on the gas can be achieved, enabling the hot jet to... Figure 1 Improved heating and melting effect on oil stains on impeller 11 and volute 12, enhancing the cleaning device 20 pairs Figure 1 The cleaning effect of the blower 10. It should be noted that the arrangement of the two heating mechanisms and the suction mechanism is not specifically limited in this embodiment; any arrangement is within the protection scope of this embodiment. It should also be noted that in other embodiments, there may be three, four, or more heating mechanisms, and at least two suction mechanisms. The arrangement of at least three heating mechanisms and at least two suction mechanisms is not specifically limited in this embodiment; any arrangement is within the protection scope of this embodiment.

[0089] In addition, such as Figure 6 As shown, the heating power of the two heating mechanisms 22 increases gradually along the gas flow direction, which can fully heat the gas with less energy, improve the heating efficiency of the gas, and reduce energy consumption.

[0090] Of course, in other embodiments, such as Figure 7 As shown, the heating mechanism 22 is located upstream of the suction mechanism 23, so that the heating mechanism 22 can make full contact with the gas entering from the outside of the nozzle 21, thereby fully heating the gas entering from the outside of the nozzle 21 and improving the cleaning effect of the cleaning device 20 on the impeller 11 and the volute 12.

[0091] In other embodiments, such as Figure 8 As shown, the suction mechanism 23 can also be disposed outside the channel 211, enabling better and faster disassembly and replacement of the suction mechanism 23. Specifically, this can be achieved through snap-fit, fastener connection, threaded connection, etc., which will not be elaborated upon in detail in this embodiment. In other embodiments, such as... Figure 9 As shown, the heating mechanism 22 can also be placed outside the channel 211, which allows for better and faster disassembly and replacement of the heating mechanism 22.

[0092] In other embodiments, such as Figure 10 As shown, the heating mechanism 22 and the suction mechanism 23 can also be simultaneously arranged outside the channel 211. This improves the efficiency of disassembling and replacing the heating mechanism 22 and the suction mechanism 23, and allows for the application of larger heating mechanisms 22 and suction mechanisms 23 in the cleaning device 20, thereby improving the cleaning effect of the cleaning device 20. Specifically, as... Figure 10 As shown, the cleaning device 20 also includes a conduit 24, which is connected to the channel 211. The heating mechanism 22 and the suction mechanism 23 are both mounted on the conduit 24.

[0093] Combination Figure 1 , Figure 4 and Figure 5 As shown, the range hood 100 of this embodiment further includes a drive device 30, which drives the cleaning device 20 to move relative to the fan 10 so that the area swept by the gas ejected from the channel 211 can cover at least a portion of the fan 10. The hot jet ejected from the channel 211, through the movement of the cleaning device 20 relative to the fan 10, can achieve greater coverage of the fan 10, effectively improving the cleaning effect on the fan 10.

[0094] In addition, such as Figure 1 and Figure 4 As shown, the cleaning device 20 is disposed on one side of the impeller 11, and the drive device 30 drives the cleaning device 20 to rotate. Figure 4 The first direction shown (i.e.) Figure 1 The axis swings (perpendicular to the plane of the paper), wherein the first direction is... Figure 1 The impeller 11 shown has a vertical or non-plane axis. The cleaning device 20 can achieve in-depth cleaning of different positions along the axis of the impeller 11, thereby improving the all-round cleaning effect of the cleaning device 20 on the impeller 11.

[0095] like Figure 1 and Figure 4 As shown, the cleaning device 20 is located on one side of the impeller 11 along its axial direction. Since the cleaning device 20 is not located inside the fan 10, it does not affect the inherent shape and design of the fan 10, ensuring that a larger impeller 11 is installed in a larger space inside the fan 10, thus achieving a better oil fume extraction effect. Furthermore, since the cleaning device 20 is not located on the periphery of the impeller 11, the cleaning fluid sprayed by the cleaning device 20 can spray onto the blades 113 near the output shaft 132, achieving better cleaning of the blades 113 near the output shaft 132 and avoiding cleaning dead zones on individual blades 113.

[0096] Specifically, such as Figure 4 As shown, the cleaning device 20 is pivotally connected to the component to be installed (not elaborated here, but can be an oil collection mechanism as described below, but not limited to it) and can rotate around a first direction. The driving device 30 includes a driving body 31 and an output end 32. The driving body 31 is mounted on the component to be installed, and the output end 32 can move linearly relative to the driving body 31. The free end of the output end 32 can drive the cleaning device 20 to swing relative to the component to be installed around the first direction. The structure is simple and easy to assemble. The driving device 30 can be a push rod motor, which can achieve precise control of the angle adjustment of the cleaning device 20. Of course, other structures that can realize the swinging of the cleaning device around the first direction are all within the protection scope of the embodiments of this disclosure.

[0097] As a preferred option, such as Figure 4 and Figure 5 As shown, the nozzle 21 extends along a first direction, and the channel 211 forms at least two jet orifices 21131 on the nozzle 21. The at least two jet orifices 21131 are arranged at intervals along the first direction, thereby enabling the nozzle 21 to... Figure 1 The impeller 11 shown provides a large radial coverage area, improving the cleaning device 20 for applications such as... Figure 1 The impeller 11 shown provides a large radial coverage area, improving the cleaning device 20 for applications such as... Figure 1 The impeller 11 shown demonstrates its all-around cleaning effect.

[0098] In addition, such as Figure 5 As shown, the cleaning device 20 also includes a temperature detection mechanism 25, which is located at the jet port 21131 and can detect the temperature of the gas at the jet port 21131. Combined with... Figure 1 , Figure 4 and Figure 5As shown, when the temperature detected by the temperature detection mechanism 25 reaches the preset temperature, the drive device 30 can drive the cleaning device 20 to move relative to the fan 10, thereby achieving a better cleaning effect on the fan 10. Specifically, the temperature detection mechanism 25 can be a temperature sensor or the like, and any product capable of temperature detection is within the protection scope of this disclosure embodiment.

[0099] like Figure 1 and Figure 11 As shown, the fan 10 is a dual-inlet fan, which includes two air inlets 121. The arrangement of the two air inlets 121 improves the efficiency and volume of the range hood 100 in collecting oil fumes, thereby enhancing the range hood 100's fume extraction effect. Figure 1 As shown, the cleaning device 20 is located on the outside of the air inlet 121. Each air inlet 121 is equipped with a corresponding cleaning device 20, which can achieve sufficient cleaning of the blades 113 on both sides of the middle plate 114 and the impeller 115, ensuring the comprehensive cleaning effect of the cleaning device 20 on the impeller 11.

[0100] like Figure 11 As shown, each air inlet 121 is equipped with a corresponding cleaning device 20. The two cleaning devices 20 are located on the left and right sides of the impeller 11, where the left and right sides are... Figure 11 As shown above, along the axial direction, one cleaning device 20 is located above or on top of the impeller 11, and the other cleaning device 20 is located below or on the bottom of the impeller 11, as... Figure 2 and Figure 3 As shown, a through hole 116 is provided on the middle plate 114. Of course, in other embodiments, the through hole may be provided only on the wheel, or it may be provided on both the wheel and the middle plate.

[0101] like Figure 11 As shown, the following definitions are made: the pivot position of the cleaning device 20 at the lower left is O1, the pivot point of the cleaning device 20 at the upper right is O2, the upper left corner of the impeller 11 is P, the upper right corner of the impeller 11 is Q, the lower left corner of the impeller 11 is R, and the lower right corner of the impeller 11 is S. The length of PQ is the length of one blade 113, the length of RS is the length of one blade, the angle between O1P and O1Q is α, and the angle between O2R and O2S is β.

[0102] By controlling the lower left corner cleaning device 20 to swing between α, the spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 moves back and forth between the two ends of the impeller 11 along the axial direction. That is, the spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 moves back and forth along the axial direction of the impeller 11 within the range of the left end face of the impeller 11 and O1Q.

[0103] By controlling the upper right cleaning device 20 to swing between β, the spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates between the two ends in the axial direction of the impeller 11. The spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates along the axial direction of the impeller 11 within the range of the right end face of the impeller 11 and O2R. That is to say, at the same time, the two cleaning devices 20 can clean different areas of the impeller 11, and can achieve comprehensive coverage of the impeller 11 in a short time.

[0104] In addition, such as Figure 1 and Figure 4 As shown, the range hood 100 also includes a flow guiding device 50, which is located below the fan 10. The flow guiding device 50 includes a flow guiding plate 51, which can guide the oil fumes entering the range hood 100 to the air inlet 121, thereby effectively improving the oil fume extraction effect and efficiency of the range hood 100.

[0105] In addition, such as Figure 1 , Figure 2 and Figure 4 As shown, the range hood 100 also includes a heating device 60, which is in direct or indirect contact with the fan 10 and can heat the fan 10. The heat generated by the heating device 60 can be conducted to the impeller 11 and the volute 12, thereby melting the grease that has solidified on the impeller 11 and the volute 12 over the years, allowing the melted grease to separate from the impeller 11 and the volute 12, achieving a further cleaning effect on the fan 10.

[0106] In addition, such as Figure 1 As shown, the heating device 60 is installed in the housing 70. The heating device 60 can heat the gas in the housing 70. The heated gas transfers heat to various parts of the housing 70 through thermal conduction, thereby achieving the purpose of heating and melting solidified grease in various parts of the housing 70.

[0107] In addition, such as Figure 1 , Figure 2 and Figure 4 As shown, the range hood 100 also includes an oil collection mechanism 40. The fan 10 has an oil drain port 122. The oil collection mechanism 40 is located below the oil drain port 122 and can collect the oil leaking from the oil drain port 122. The oil falling from the fan 10 can be collected in the oil collection mechanism 40 to prevent the oil from falling onto the stove (not shown in the figure) and improve the cleanliness of the stove (not shown in the figure).

[0108] In addition, such as Figure 1 , Figure 2 and Figure 4As shown, the oil stain collection mechanism 40 includes a base plate 41 and side plates 42. The left and right sides of the base plate 41 (i.e., Figure 1 Side plates 42 are provided on both sides (as shown in the axial direction), and the bottom plate 41 and side plates 42 together form a receiving space 43, which can temporarily store oil stains. Furthermore, as... Figure 2 As shown, the base plate 41 slopes downwards from front to back. The grease in the oil collection mechanism 40 can drip into the oil cup (not shown in the figure) through the tilt angle of the base plate 41, preventing the grease from falling onto the stove (not shown in the figure) and improving the cleanliness of the stove (not shown in the figure).

[0109] like Figure 2 and Figure 4 As shown, the heating device 60 includes a first heating element 61, which is in direct or indirect contact with the base plate 41. The bottom of the volute 12 is located above the base plate 41 and is in direct or indirect contact with it. The first heating element 61 heats the volute 12 from the bottom of the fan 10 and transfers heat to the top of the impeller 11 and the top of the volute 12, thereby achieving a better heating effect on the fan 10. Figure 2 and Figure 4 As shown, the heating device 60 also includes a second heating element 62, which is disposed on the side plate 42. The side plate 42 is in direct or indirect contact with the side wall of the volute 12. The second heating element 62 heats the volute 12 from the side wall of the fan 10 and conducts heat to the top of the impeller 11 and the top of the volute 12, thereby achieving a better heating effect on the fan 10.

[0110] It should be noted that the specific structure of the first heating element 61 and the second heating element 62 is not specifically limited in the embodiments disclosed herein, and all components capable of heating are within the protection scope of the embodiments disclosed herein.

[0111] As a preferred option, such as Figure 4 and Figure 11 As shown, the two guide plates 51 and the base plate 41 can form a placement space 80. The first heating element 61 is placed in the placement space 80. The placement space 80 can provide good protection for the first heating element 61, avoid oil contamination of the first heating element 61, and ensure good heating effect of the first heating element 61.

[0112] In addition, combined Figure 1 and Figure 4 As shown, the cleaning device 20 of this embodiment is pivotally connected to the oil collection mechanism 40, thereby integrating the cleaning device 20, the oil collection mechanism 40, the heating device 60 and the driving device 30 into one unit. This enables the rapid assembly of the integrated structure with the fan 10 and the housing 70, improving the assembly efficiency of the range hood 100.

[0113] Example 2

[0114] This disclosure provides a control method for controlling a range hood 100 as described in Embodiment 1. Figure 12 As shown, the control method includes controlling the impeller to rotate; controlling the cleaning device to move relative to the fan and eject cleaning fluid onto the rotating impeller, so that the ejected cleaning fluid is directed to the spray area at the impeller and reciprocates between the two ends in the direction of the impeller axis; controlling at least one of the rotation of the impeller or the reciprocating movement of the spray area to be a variable speed motion.

[0115] By combining the movement of the impeller with the movement of the cleaning device, and controlling at least one of the rotation of the impeller or the reciprocating movement of the spray zone to be a variable speed motion, the cleaning fluid can be fully covered by the impeller in a short time, achieving a rapid and comprehensive cleaning effect on the impeller.

[0116] In this embodiment, only the rotation of the impeller can be controlled to be a variable-speed motion, without limiting the reciprocating movement of the spray area. The step of controlling the impeller rotation includes controlling the impeller speed to increase with the impeller's operating time.

[0117] Because the grease adheres strongly to the impeller during the initial stages of rotation, it is difficult for it to detach even at high speeds. As time progresses, the softening and peeling effect of the cleaning fluid on the grease gradually increases, reducing the adhesion between the grease and the impeller. Therefore, increasing the impeller speed in the later stages of operation allows for easier removal of less adherent grease, improving the cleaning effect.

[0118] In summary, by using the above method, the impeller only needs to rotate at a relatively high speed in the middle and later stages. Under the action of inertia, the grease can be effectively detached from the impeller, and the separation of grease from the impeller can be achieved with less energy consumption.

[0119] To address the issue that the impeller speed increases with the impeller's operating time, the first control method can be used: the relationship between the impeller's operating time (t) and its speed (ω) can be expressed as: ω = k * t, where k is a constant. In other words, ω continuously increases with time, achieving a rapid and comprehensive cleaning effect on the impeller.

[0120] Since the impeller speed tends to increase with the impeller's running time, a second control method can be used: the relationship between the impeller's running time (t) and the impeller speed (ω) can be represented by the following function:

[0121]

[0122] Wherein, t1 is the first preset time point; t2 is the second preset time point; t3 is the third preset time point; t4 is the fourth preset time point; t5 is the fifth preset time point; ω1 is the first preset rotational speed; ω2 is the second preset rotational speed; ω3 is the third preset rotational speed; ω4 is the fourth preset rotational speed; t1 < t2 < t3 < t4 < t5; ω1 < ω2 < ω3 < ω4.

[0123] For the second control method, the system is divided into multiple time periods, each corresponding to a different speed, with the speeds increasing over time. Compared to the first method, this approach effectively reduces the frequency of impeller speed adjustments, thus reducing the computational load on the range hood's controller and increasing its processing speed.

[0124] Specifically, the steps to control the impeller speed to increase with the increase of impeller running time include:

[0125] The impeller includes low, medium, and high speeds, with the higher the speed, the faster the impeller rotates. The impeller is controlled to run at low speed for a first preset time period. At the end of the first preset time period, the impeller is controlled to run at medium speed for a second preset time period. At the end of the second preset time period, the impeller is controlled to run at high speed for a third preset time period. The second preset time period is longer than the first preset time period but shorter than the third preset time period.

[0126] Since the early and middle stages are the wetting stage of the clean fluid on the grease, it should be noted that wetting includes wetting of liquids, wetting of high-temperature gases, etc. The middle and later stages are the separation stage of grease and impeller. The impeller only needs to rotate at a higher speed and for a longer time in the middle and later stages to achieve good grease removal from the impeller. Under the premise of low energy consumption, the separation of grease and impeller can be achieved well.

[0127] In other embodiments, only the reciprocating movement of the spray area can be controlled as a variable speed motion, and the control of the impeller rotation mode is not limited. After a short time, the cleaning fluid can also fully cover the impeller, achieving a rapid and comprehensive cleaning effect on the impeller.

[0128] By controlling the movement of the cleaning device, the spray area of ​​the ejected cleaning fluid can be made to reciprocate between the two ends of the impeller axis in the direction of the impeller axis.

[0129] Specifically, Figure 1 and Figure 4 As shown, the cleaning device 20 is disposed on one side of the impeller 11, and the drive device 30 drives the cleaning device 20 to rotate. Figure 4 The first direction shown (i.e.) Figure 1 The axis swings (perpendicular to the plane of the paper), wherein the first direction is... Figure 1The impeller 11 shown has a vertical or non-plane axis. The cleaning device 20 can achieve in-depth cleaning of different positions along the axis of the impeller 11. The spray area of ​​the ejected cleaning fluid can move back and forth between the two ends along the axis of the impeller 11, thereby improving the all-round cleaning effect of the cleaning device 20 on the impeller 11.

[0130] like Figure 11 As shown, each air inlet 121 is equipped with a corresponding cleaning device 20. The two cleaning devices 20 are located on the left and right sides of the impeller 11, where the left and right sides are... Figure 11 As shown above, along the axial direction, one cleaning device 20 is located above or on the upper part of the impeller 11, and the other cleaning device 20 is located below or on the lower part of the impeller 11.

[0131] like Figure 11 As shown, the following definitions are made: the pivot position of the cleaning device 20 at the lower left is O1, the pivot point of the cleaning device 20 at the upper right is O2, the upper left corner of the impeller 11 is P, the upper right corner of the impeller 11 is Q, the lower left corner of the impeller 11 is R, and the lower right corner of the impeller 11 is S. The length of PQ is the length of one blade 113, the length of RS is the length of one blade, the angle between O1P and O1Q is α, and the angle between O2R and O2S is β.

[0132] By controlling the lower left corner cleaning device 20 to swing between α, the spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates between the two ends in the axial direction of the impeller 11. The spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates along the axial direction of the impeller 11 within the range of the left end face of the impeller 11 and O1Q. Of course, the swing amplitude of the lower left corner cleaning device 20 can also be greater than the maximum vertical dimension of the impeller 11.

[0133] By controlling the upper right corner cleaning device 20 to swing between β, the spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates between the two ends in the axial direction of the impeller 11. The spray area of ​​the cleaning fluid ejected by the cleaning device 20 towards the impeller 11 reciprocates along the axial direction of the impeller 11 within the range of the right end face of the impeller 11 and O2R. Of course, the swing amplitude of the lower right corner cleaning device 20 can also be greater than the maximum vertical dimension of the impeller 11.

[0134] The ejected cleaning fluid is directed towards the impeller 11, and the reciprocating motion between the two ends of the impeller 11 along its axial direction is a variable-speed motion. This means that the single-stroke motion of the spray area between the two ends of the impeller 11 along its axial direction can be uniformly accelerated, uniformly decelerated, etc. The reciprocating motion of the spray area between the two ends of the impeller 11 along its axial direction can also include at least two different motion segments, each of which can be uniform speed motion, uniformly accelerated motion, uniformly decelerated motion, etc. In practice, the single-stroke motion of the cleaning device 20 can be controlled to be variable-speed motion, which can be uniformly accelerated motion, uniformly decelerated motion, etc., or it can include at least two different motion segments, each of which can be uniform speed motion, uniformly accelerated motion, uniformly decelerated motion, etc.

[0135] In other embodiments, the reciprocating movement of the spray area can be controlled to be variable speed motion while the rotation of the impeller is controlled to be variable speed motion. After a short time, the cleaning fluid can fully cover the impeller, achieving a rapid and comprehensive cleaning effect on the impeller.

[0136] Example 3

[0137] This disclosure presents a control method. Based on Embodiment 2, the control method of this embodiment further includes: controlling the working status of the heating device, impeller and cleaning device according to the type of oil accumulation in the fan; and rationally selecting the cleaning mode according to different types of oil accumulation, so as not to waste energy and achieve better energy saving effect.

[0138] As a preferred option, such as Figure 13 As shown, the type of oil accumulation in a fan is determined as follows: Test parameters of the fan are obtained; the test parameters are compared with corresponding preset parameters; and the type of oil accumulation is determined based on the comparison results. This method enables accurate identification of the type of oil accumulation.

[0139] Specifically, test parameters can include the fan's weight, the impeller's power at a preset speed, and the impeller's light occlusion rate. When the test parameter is the fan's weight, this can be obtained by installing a weight sensor on the fan to monitor changes in weight in real time. When the test parameter is the power at a preset speed, changes in the fan's current can be detected in real time. When the test parameter is the impeller's light occlusion rate, a signal transmitter and receiver can be installed inside the fan, with the impeller positioned between them. By detecting the amount of signal received, the light occlusion rate can be obtained.

[0140] The preset parameters can simulate different oil accumulation states during the testing phase of the range hood, and measure and store the corresponding standard parameters under different oil accumulation states in the controller. This allows the range hood to compare the test parameters with the preset parameters during subsequent operation, enabling rapid identification and recognition of different oil accumulation types.

[0141] Specifically, the preset parameters include a first threshold, a second threshold, and a third threshold, wherein the second threshold is greater than the first threshold and less than the third threshold; the step of determining the type of oil accumulation based on the comparison results includes: if the test parameter is equal to the first threshold, the fan has light oil accumulation; if the test parameter is equal to the second threshold, the fan has moderate oil accumulation; if the test parameter is equal to the third threshold, the fan has heavy oil accumulation.

[0142] Among them, the first threshold, the second threshold, and the third threshold can be point values ​​or ranges. When the first threshold, the second threshold, and the third threshold are ranges, it is possible to achieve more accurate and faster judgment of different oil accumulation types.

[0143] Furthermore, the steps for controlling the operating status of the heating device, impeller, and cleaning device include:

[0144] If the blower has only a slight oil buildup, only the heating device needs to be controlled. The heat generated by the heating device can be conducted to the impeller and volute, thereby melting the grease that has solidified over the years and separating the melted grease from the impeller and volute. The independent operation of the heating device can meet the cleaning needs of a slight oil buildup, and the energy consumption is low.

[0145] If the fan has moderate oil accumulation, only the impeller and cleaning device need to be controlled; this can achieve good cleaning of the impeller and volute, meet the requirements for cleaning moderate oil accumulation, and has relatively low energy consumption.

[0146] If the fan has heavy oil buildup, the heating device, impeller, and cleaning device can be controlled to work simultaneously. The heating device heats and the cleaning device cleans at the same time, achieving a better cleaning effect for heavy oil buildup.

[0147] Example 4

[0148] Figure 14 This is a schematic diagram of the structure of a device according to Embodiment 4 of the present invention. Figure 14 A block diagram of an exemplary device 120 suitable for implementing embodiments of the present invention is shown. Figure 14 The device 120 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0149] like Figure 14As shown, device 120 is presented in the form of a general-purpose computing device. Components of device 120 may include, but are not limited to: one or more processors or processing units 160, system memory 280, and bus 180 connecting different system components (including system memory 280 and processing unit 160).

[0150] Bus 180 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to: Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

[0151] Device 120 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by device 120, including volatile and non-volatile media, removable and non-removable media.

[0152] System memory 280 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 300 and / or cache memory 320. Device 120 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 340 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 14 Not shown; usually referred to as a "hard drive"). Although Figure 14 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 180 via one or more data media interfaces. Memory 280 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of the present invention.

[0153] A program / utility 400 having a set (at least one) of program modules 420 may be stored in, for example, memory 280. Such program modules 420 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 420 typically perform the functions and / or methods described in the embodiments of the present invention.

[0154] Device 120 can also communicate with one or more external devices 140 (e.g., keyboard, pointing device, display 240, etc.), and with one or more devices that enable a user to interact with device 120, and / or with any device that enables device 120 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 220. Furthermore, in this embodiment, device 120 and display 240 are not separate entities, but are embedded in a mirror, so that when the display surface of display 240 is not displayed, the display surface of display 240 and the mirror surface visually blend together. Additionally, device 120 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 200. As shown, network adapter 200 communicates with other modules of device 120 via bus 180. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with device 120, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0155] The processing unit 160 executes various functional applications and data processing by running programs stored in the system memory 280, such as implementing a control method provided in embodiments two, three or four of the present invention.

[0156] Example 5

[0157] Embodiment 5 of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a control method as provided in Embodiments 2 or 3 of the present application.

[0158] Any combination of one or more computer-readable media may be used. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

[0159] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0160] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0161] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including local area networks (LANs) or wide area networks (WANs), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0162] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A control method for controlling a range hood, the range hood including a fan and a cleaning device, the fan including an impeller; Its features are, The control method includes: Control the rotation of the impeller; The cleaning device is controlled to move relative to the fan and eject cleaning fluid toward the rotating impeller, so that the ejected cleaning fluid is directed toward the impeller and the spray area moves back and forth between the two ends of the impeller axis; wherein at least one of the rotation of the impeller or the reciprocating movement of the spray area is a variable speed motion; The step of controlling the rotation of the impeller includes: The rotational speed of the impeller increases with the increase of the impeller's running time; The step of controlling the impeller speed to increase with the increase of the impeller's running time includes: The impeller includes low-range, medium-range, and high-range impellers, ranging from low to high. Control the impeller to operate at the low speed for a first preset time period; When the first preset time period ends, the impeller is controlled to run at the medium speed for a second preset time period; When the second preset time period ends, the impeller is controlled to run at the high speed for a third preset time period; Wherein, the second preset time period is longer than the first preset time period and shorter than the third preset time period; The cleaning device includes a nozzle, a heating mechanism, and an air suction mechanism. The nozzle has a channel, and the air suction mechanism is used to drive the gas outside the nozzle to flow to the heating mechanism for heating, and to make the heated gas spray out from the channel and spray it to the fan.

2. The control method according to claim 1, characterized in that, The range hood includes a heating device for heating the fan; The control method further includes: The operating status of the heating device, the impeller, and the cleaning device is controlled according to the type of oil accumulation in the fan.

3. The control method according to claim 2, characterized in that, The type of oil accumulation in the fan is determined as follows: Obtain the test parameters of the wind turbine; Compare the test parameters with the corresponding preset parameters; The type of oil accumulation is determined based on the comparison results.

4. A range hood, characterized in that, include: A fan (10) and a cleaning device (20), wherein the fan (10) includes an impeller (11); The control module employs the control method described in any one of claims 1 to 3.

5. The range hood according to claim 4, characterized in that, The range hood also includes a drive device (30), and the cleaning device (20) is disposed on one side of the impeller (11) along its axial direction. The drive device (30) drives the cleaning device (20) to swing around a first direction, which is perpendicular to or opposite to the axis of the impeller (11).

6. The range hood according to claim 5, characterized in that, The fan (10) is a dual-inlet fan, which includes two air inlets (121). The cleaning device (20) is located outside the air inlets (121), and each air inlet (121) is provided with a corresponding cleaning device (20).

7. The range hood according to claim 6, characterized in that, One of the cleaning devices (20) is located above or on the upper part of the impeller (11), and the other cleaning device (20) is located below or on the lower part of the impeller (11). The range hood includes a middle plate (114) and a wheel (115), and a through hole (116) is provided on the middle plate (114) and / or the wheel (115).

8. The range hood according to claim 5, characterized in that, The cleaning device (20) extends along the first direction and is provided with at least two jet ports (21131), which are arranged at intervals along the first direction.

9. The range hood according to any one of claims 4 to 8, characterized in that, The range hood also includes: A heating device (60) is in direct or indirect contact with the fan (10), and the heating device (60) can heat the fan (10).

10. A device, characterized in that, The device includes: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the control method as described in any one of claims 1 to 3.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the control method as described in any one of claims 1 to 3.

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