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 comprises: controlling the cleaning device reciprocating motion along the first direction, simultaneously, controlling the cleaning device swing around the first direction, the first direction is perpendicular to the impeller axis direction or different surface. Through the swing of the cleaning device and the compound motion of the cleaning device reciprocating motion along the first direction, the cleaning fluid can realize the quick and large area coverage to the fan, and the cleaning device can realize the quick and comprehensive cleaning effect. The range hood can realize the quick and comprehensive cleaning effect of the cleaning device to the fan by applying the control method.

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 that enables a cleaning fluid 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 cleaning device being located on the air inlet side of the fan and capable of ejecting cleaning fluid, the fan including an impeller, the control method including:

[0008] The cleaning device is controlled to reciprocate along a first direction, and at the same time, the cleaning device is controlled to swing around the first direction, which is perpendicular to or opposite to the impeller axis.

[0009] As a preferred embodiment, controlling the cleaning device to oscillate around a first direction includes:

[0010] Along the first direction, as the cleaning device moves from one end of the impeller to the other end, the swing angle of the cleaning device is controlled to first increase and then decrease.

[0011] As a preferred option, the control method also includes:

[0012] At the same time, control the impeller rotation.

[0013] As a preferred embodiment, controlling the impeller rotation includes:

[0014] Control the impeller to rotate at different speeds.

[0015] As a preferred option, reciprocating motion can be a single-journey uniform motion, a single-journey accelerated motion, or a single-journey decelerated motion.

[0016] According to another aspect of the present invention, a range hood is provided that can achieve a better cleaning effect of the cleaning fluid on a larger area of ​​the impeller.

[0017] To achieve the above objectives, the present invention adopts the following technical solution:

[0018] A range hood, comprising:

[0019] Fans, including impellers;

[0020] The cleaning device is located on the air inlet side of the impeller and can eject cleaning fluid.

[0021] A first drive unit is configured to drive the cleaning device to oscillate about a first direction, the first direction being perpendicular to or opposite to the axis of the impeller; and

[0022] The second drive unit is configured to drive the first drive unit to reciprocate along a first direction.

[0023] As a preferred embodiment, the cleaning device is pivotally connected to the second drive device; the first drive device includes:

[0024] The drive body is pivotally connected to the output end of the second drive device; and

[0025] The output component can move linearly relative to the drive body, and the free end of the output component is pivotally connected to the cleaning device.

[0026] As a preferred embodiment, the cleaning device includes a jet nozzle, the area of ​​which is 1 / 100 to 1 / 20 of the area enclosed by the outer contour of the impeller.

[0027] As a preferred embodiment, the cleaning device, the first drive device, and the second drive device constitute a cleaning assembly, and cleaning assemblies are provided on both sides of the impeller.

[0028] According to another aspect of the present invention, an apparatus is provided, the apparatus comprising:

[0029] One or more processors;

[0030] Storage device for storing one or more programs;

[0031] When one or more programs are executed by one or more processors, the one or more processors implement the control method described above.

[0032] 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.

[0033] The beneficial effects of this invention are:

[0034] The control method provided by this invention includes: controlling a cleaning device to reciprocate along a first direction, and simultaneously controlling the cleaning device to oscillate around the first direction, wherein the first direction is perpendicular to or opposite to the impeller axis. Through the combined motion of the oscillation and reciprocating motion of the cleaning device along the first direction, the cleaning fluid can achieve rapid and large-area coverage of the fan, enabling the cleaning device to achieve a rapid and comprehensive cleaning effect on the fan.

[0035] The range hood provided by this invention, by applying the above-mentioned control method, can achieve a rapid and comprehensive cleaning effect on the fan by the cleaning device. Attached Figure Description

[0036] Figure 1 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention. Figure 1 ;

[0037] Figure 2 This is a cross-sectional view of the range hood provided in Embodiment 1 of the present invention. Figure 2 ;

[0038] Figure 3 This is a schematic diagram of the impeller structure provided in Embodiment 1 of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of a range hood provided in Embodiment 1 of the present invention. Figure 1 ;

[0040] Figure 5 This is a schematic diagram of the structure of a range hood provided in Embodiment 1 of the present invention. Figure 2 ;

[0041] Figure 6 This is a schematic diagram of the cleaning device, the first driving device, and the second driving device provided in Embodiment 1 of the present invention;

[0042] Figure 7 This is a cross-sectional view of the cleaning device provided in Embodiment 1 of the present invention;

[0043] Figure 8 This is a flowchart of the control method provided in Embodiment 2 of the present invention;

[0044] Figure 9 This is a diagram showing the cleaning status of the impeller provided in Embodiment 2 of the present invention;

[0045] Figure 10 This is a flowchart of the control method provided in Embodiment 3 of the present invention;

[0046] Figure 11 This is a diagram showing the cleaning status of the impeller provided in Embodiment 3 of the present invention;

[0047] Figure 12 This is a flowchart of the control method provided in Embodiment 4 of the present invention;

[0048] Figure 13 This is a schematic diagram of the device provided in Embodiment 5 of the present invention.

[0049] In the picture:

[0050] 100. Range hood;

[0051] 10. Fan; 11. Impeller; 111. Front ring; 112. Rear ring; 113. Blade; 114. Middle disc; 115. Wheel disc; 116. Inlet side; 12. Volute; 121. Air inlet; 122. Oil drain port; 13. Motor; 131. Motor body; 132. Output shaft;

[0052] 20. Cleaning device; 21. Nozzle; 211. Channel; 2111. Air intake channel; 2112. Intake chamber; 2113. Jet channel; 21131. Jet outlet; 22. Heating mechanism; 23. Intake mechanism; 25. Temperature detection mechanism;

[0053] 30. First drive unit; 31. Drive body; 32. Output component;

[0054] 40. Oil stain collection mechanism; 41. Base plate; 42. Side plate; 43. Accommodation space;

[0055] 50. Flow guiding device; 51. Flow guiding plate;

[0056] 60. Heating device; 61. First heating element; 62. Second heating element;

[0057] 70. Shell;

[0058] 80. Placement space;

[0059] 90. Second drive unit; 91. Output terminal;

[0060] 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

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] Example 1

[0066] 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.

[0067] like Figure 1 and Figure 2As 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. Figures 1-3 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. Figures 1-3 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... Figures 1-3 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 disposed 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. Figure 1 As shown, the fan 10 is a dual-inlet fan, which includes two air inlets 121. By setting up two air inlets 121, the efficiency and volume of the range hood 100 in collecting oil fumes can be improved, thereby enhancing the oil fume extraction effect of the range hood 100.

[0068] 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.

[0069] like Figures 1-6 As shown, the range hood 100 also includes a cleaning device 20, which can spray cleaning fluid. The cleaning fluid is used to clean the volute 12 and the impeller 11, thereby achieving a better cleaning effect on the fan 10.

[0070] like Figure 1 , Figure 4 and Figure 5 As shown, the cleaning device 20 is disposed on the air inlet side 116 of the impeller 11, and the cleaning device 20 can eject cleaning fluid. The first drive device 30 is used to drive the cleaning device 20 to oscillate around a first direction, which is perpendicular to or out of plane with the axis of the impeller 11. The second drive device 90 is used to drive the first drive device 30 to reciprocate along the first direction. Through the combined motion of the oscillation of the cleaning device 20 and the reciprocating motion of the cleaning device 20 along the first direction, the cleaning device 20 can achieve a rapid and comprehensive cleaning effect on the fan 10.

[0071] like Figure 1 , Figure 4 and Figure 5 As shown, the cleaning device 20 is located on the air inlet side 116 of the impeller 11. The range hood 100 has a smaller radial dimension in the impeller 11, which can effectively reduce the space occupied by the range hood 100 in the radial direction of the impeller 11.

[0072] In addition, such as Figure 7 As shown, the cleaning device 20 includes a jet nozzle 21131 for spraying cleaning fluid, and the area of ​​the jet nozzle 21131 is [area missing]. Figure 3 The outer contour of the impeller 11 shown is 1 / 100 to 1 / 20 of the area. The area of ​​the jet port 21131 is small. Under the same conditions, the flow rate of the cleaning fluid ejected from the jet port 21131 is greater. The cleaning fluid with a larger flow rate can achieve a better cleaning effect on the impeller 11.

[0073] Furthermore, compared to a solution where the cleaning device extends along the first direction, such as Figure 1 , Figure 4 and Figure 5 As shown, the cleaning device 20 of this embodiment is smaller in size. The first driving device 30 only needs to apply a small driving force to realize the oscillation of the cleaning device 20 around the first direction. The first driving device 30 can be selected as a model with lower power and smaller size, and the overall size of the range hood 100 will be smaller. In addition, as Figure 4 and Figure 5 As shown, since the cleaning device 20 is smaller in size, it is easier and cheaper to replace when the cleaning device 20 is damaged.

[0074] For ease of explanation, combined with Figure 4 , Figure 5 as well as Figure 6 The structure of the first drive unit 30 will be described, such as... Figure 4 , Figure 5 as well as Figure 6 As shown, the cleaning device 20 is pivotally connected to the second drive device 90. The first drive device 30 includes a drive body 31 and an output component 32. The drive body 31 is pivotally connected to the output end 91 of the second drive device 90. The output component 32 can move linearly relative to the drive body 31, and its free end is pivotally connected to the cleaning device 20. When the output component 32 moves telescopically relative to the drive body 31, it can drive the cleaning device 20 to swing relative to the output end 91 of the second drive device 90 in a first direction. The structure is simple, occupies little space, and is easy to assemble. Specifically, the first drive device 30 can be a linear output motor, a linear output cylinder, or other devices capable of linear motion.

[0075] like Figure 4 and Figure 5 As shown, the second driving device 90 in this embodiment can be a linear guide rail, which can be a roller linear guide rail, a cylindrical linear guide rail, a ball linear guide rail, etc., and this embodiment does not impose specific limitations. Of course, in other embodiments, the second driving device 90 can also be a linear motor, a linear cylinder, etc., and all devices capable of linear drive are within the protection scope of this embodiment.

[0076] As a preferred option, such as Figure 4 and Figure 5 As shown, the cleaning device 20, the first drive device 30, and the second drive device 90 constitute a cleaning assembly. Cleaning assemblies are provided on both sides of the impeller 11, enabling rapid cleaning of the impeller 11 from all directions. Figure 4 and Figure 5 As shown, two sets of cleaning components are symmetrically arranged on both sides of the impeller 11, enabling quick positioning and installation of the cleaning components. Of course, in other embodiments, cleaning components may be provided only on one side of the impeller. In other embodiments, two sets of cleaning components may be provided, arranged diagonally. In other embodiments, three, four, or more sets of cleaning components may be provided.

[0077] like Figure 7 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 to heat the oil slick and achieve the desired effect through impact. Figure 1 The oil stains attached to the volute 12 and impeller 11 are effectively cleaned.

[0078] 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.

[0079] 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.

[0080] 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. For example, a cleaning device (not shown in the figure) includes a water source, a steam generator, a water pump, and a nozzle connected in sequence. The water pump sends water from the water source to the steam generator, which heats the water into hot water and / or high-temperature steam. The nozzle sprays the hot water and / or high-temperature steam onto the volute and impeller to clean the volute and impeller. The water source is usually tap water. After the tap water is heated in the steam generator, it will produce a lot of scale. The scale will block the nozzle orifice, reducing the spray force and cleaning effect of the liquid. In addition, during long-term use, the large amount of scale formed by the tap water sprayed from the nozzle will adhere to the impeller and volute, affecting the smoke extraction effect of the range hood.

[0081] like Figure 7 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 7 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.

[0082] In addition, combined Figure 1 and Figure 7 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 effectively draw the gas outside the nozzle 21 into the channel 211.

[0083] like Figure 7 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 7 As shown, the free end of the jet channel 2113 forms a jet port 21131 on the nozzle 21, which is used for the injection of hot jet.

[0084] In addition, such as Figure 7 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 5 and Figure 7 As shown, when the temperature detected by the temperature detection mechanism 25 reaches the preset temperature, the first driving 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.

[0085] In addition, such as Figure 1 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.

[0086] In addition, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 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.

[0087] 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.

[0088] In addition, such as Figure 1 , Figure 2 and Figure 5 As shown, the range hood 100 also includes an oil collection mechanism 40, such as... Figure 1 As shown, the blower 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 blower 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).

[0089] In addition, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As 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).

[0090] like Figure 2 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 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.

[0091] 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.

[0092] As a preferred option, such as Figure 1 , Figure 4 and Figure 5 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.

[0093] Example 2

[0094] like Figure 8 As shown in the embodiments, this disclosure provides a control method for controlling, as... Figure 1 , Figure 4 , Figure 5The control method for the range hood 100 shown includes:

[0095] The cleaning device 20 is controlled to reciprocate along a first direction, and simultaneously, the cleaning device 20 is controlled to oscillate around the first direction, which is perpendicular to or opposite to the impeller axis. Through the combined motion of the oscillation of the cleaning device 20 and its reciprocating motion along the first direction, the cleaning fluid can quickly cover a large area of ​​the fan 10, achieving a rapid and comprehensive cleaning effect for the fan 10.

[0096] Combination such as Figures 1-5 The control method of the range hood 100 shown in Embodiment 1 will be explained.

[0097] As a preferred embodiment, the reciprocating motion needs to meet the following conditions: the size of the reciprocating motion trajectory in the first direction is greater than or equal to the diameter of the outer contour circle of the impeller 11, and the trajectory formed by the cleaning device 20 along the first direction can encompass the impeller 11 in the first direction, so as to avoid some areas of the impeller 11 not being sprayed by the cleaning fluid, thereby achieving a better overall coverage effect of the cleaning fluid on the impeller 11, and the impeller 11 can be cleaned more thoroughly.

[0098] As a preferred embodiment, the dimension of the single-pass trajectory of the reciprocating motion in the first direction is greater than or equal to the diameter of the outer contour circle of the impeller 11, and the impeller 11 does not exceed the single-pass trajectory of the reciprocating motion along the first direction, which can further improve the cleaning effect of the cleaning fluid on the impeller 11 and avoid the appearance of cleaning blind spots on the impeller 11.

[0099] For ease of explanation, combined with Figure 9 The oscillation of the cleaning device 20 about a first direction will be described. In the embodiments of this disclosure, the oscillation angle of the cleaning device 20 is always as follows: Figure 9 As shown in the diagram, the cleaning device 20 oscillates back and forth at β. Point M is the lower end of the impeller 11 near the cleaning device 20, point T is the upper end of the impeller 11 near the cleaning device 20, point O is the center point of the cleaning device 20, and β is ∠TOM. This ensures that the cleaning fluid fully covers the impeller 11, without missing any area of ​​the impeller 11. In other embodiments, the oscillation angle of the cleaning device 20 can be slightly larger than β, and β is within the range of the oscillation angle of the cleaning device 20, which also ensures relatively comprehensive coverage of the impeller 11 by the cleaning fluid.

[0100] Specifically, the following settings are made: the vertical distance between O and the lower edge of the impeller 11 is a; the straight-line distance between O and the side (left side) of the impeller 11 near the cleaning device 20 is d; and the radius of the outer contour circle of the impeller 11 is R. a and d can be obtained by measurement after the range hood 100 is assembled, and R can be obtained by measuring the dimensions of the impeller 11.

[0101] because,

[0102] so,

[0103] It should be noted that the cleaning fluid in this embodiment can be a liquid or a gas. Preferably, the fluid can be a heated fluid, such as a hot liquid or hot gas, which can achieve a better cleaning effect on the impeller. Preferably, the fluid can have a certain velocity; a velocity fluid can exert a greater impact on the impeller, thereby achieving a better cleaning effect.

[0104] Example 3

[0105] like Figure 10 As shown in the embodiments, this disclosure provides a control method for controlling, as... Figure 1 , Figure 4 , Figure 5 The control method for the range hood 100 shown includes:

[0106] The cleaning device 20 is controlled to reciprocate in the first direction;

[0107] As the cleaning device 20 moves from one end of the impeller 11 to the other end along the first direction, the swing angle of the cleaning device 20 is controlled to first increase and then decrease.

[0108] In other words, along the first direction, from one end of the impeller 11 to the other, the length of the chord formed by the intersection of the vertical direction (i.e., the swing direction of the cleaning device 20) and the outer contour circle of the impeller 11 first increases from zero to 2*R, and then decreases from 2*R back to zero. By controlling the swing angle of the cleaning device 20 to correspond to the length of the chord at the corresponding position of the cleaning device 20, the idle swing stroke of the cleaning device 20 without cleaning fluid being sprayed onto the impeller 11 can be reduced. Compared with the control method of Embodiment 2, the control method of this embodiment can achieve a comprehensive cleaning effect on the impeller 11 in a shorter time. In addition, since the idle swing stroke is reduced, the waste of cleaning fluid can be avoided.

[0109] The control method of this embodiment can achieve the effect of quickly and thoroughly cleaning the impeller 11, and can also save cleaning fluid and avoid waste of cleaning fluid.

[0110] For example, such as Figure 11 As shown, the cleaning device 20 moves from point Q to point U, and then from point U back to point Q, repeating this cycle until the cleaning device 20 moves to the point where it intersects with the point U. Figure 11When point D corresponds to the point, the chord formed by the intersection of the vertical direction and the outer contour circle of the impeller 11 is YJ. The swing angle of the cleaning device 20 is controlled so that the length of the cleaning fluid passing through the impeller 11 is equal to the length of YJ at the corresponding position. Specifically, the swing angle of the cleaning device 20, corresponding to the length of the cleaning fluid passing through the impeller 11 and the length of YJ at the corresponding position, means that the dimension of the area formed by the intersection of the cleaning fluid and the impeller 11 in the vertical direction is greater than or equal to YJ.

[0111] In addition, the reciprocating motion can be a single-pass uniform motion, which can achieve uniform coverage of the cleaning fluid on all 11 parts of the impeller, and the degree of cleaning at each position of the impeller 11 is uniform and the same.

[0112] Specifically, the following settings are made: the cleaning device 20 moves at a constant speed along the first direction, the speed of the cleaning device 20 is v, t is the running time of the cleaning device 20, the radius of the outer contour circle of the impeller 11 is R, and the center of the outer contour circle of the impeller 11 is point G.

[0113] Since DQ = v*t, GD = R - DQ = Rv * t;

[0114] so,

[0115] In addition, the reciprocating motion can also be a single-pass variable speed motion: wherein, the reciprocating motion is preferably a single-pass acceleration motion, which can achieve a rapid and comprehensive cleaning effect of the cleaning fluid on the impeller 11; wherein, the reciprocating motion is preferably a single-pass deceleration motion, which can achieve a deep and comprehensive cleaning effect of the cleaning fluid on the impeller 11, and can achieve the cleaning of stubborn oil stains on the impeller 11.

[0116] Specifically, the cleaning device 20 is configured to either undergo a single-journey uniformly accelerated motion or a single-journey uniformly decelerated motion along the first direction. The velocity of the cleaning device 20 is v = v0 + a*t, where v0 is the initial velocity of the cleaning device 20, a is the acceleration of the cleaning device 20, and a > 0 when the reciprocating motion is a single-journey uniformly accelerated motion; a < 0 when the reciprocating motion is a single-journey uniformly decelerated motion. t is the running time of the cleaning device 20, the radius of the outer contour circle of the impeller 11 is R, and the center of the outer contour circle of the impeller 11 is point G.

[0117] Since DQ = v0*t + 0.5*a*t 2 , GD = R - DQ = R - (v0*t + 0.5*a*t) 2 );

[0118] so,

[0119] It should be noted that the single-stroke variable speed motion in this disclosure embodiment is only illustrated by the aforementioned single-stroke uniformly variable speed motion (constant acceleration). The single-stroke variable speed motion in this disclosure embodiment can also be variable acceleration motion (change in acceleration), etc., and all types of variable speed motion are within the protection scope of this disclosure embodiment.

[0120] In addition, the operator can test the range hood 100 before it is turned on, establish a corresponding table of the position of point D, the YJ value and the swing angle of the cleaning device 20, and store the table in the controller of the range hood 100. Based on the position of the cleaning device 20, the corresponding swing angle of the cleaning device 20 can be obtained quickly, which can achieve fast and accurate control of the range hood 100.

[0121] Example 4

[0122] like Figure 12 As shown in the embodiments, this disclosure provides a control method for controlling, as... Figure 1 , Figure 4 , Figure 5 The control method for the range hood 100 shown includes:

[0123] The cleaning device 20 is controlled to reciprocate in the first direction;

[0124] At the same time, the cleaning device 20 is controlled to swing around a first direction, which is perpendicular to or opposite to the impeller axis direction;

[0125] At the same time, control the impeller 11 to rotate.

[0126] By combining the swinging of the cleaning device 20, the reciprocating motion of the cleaning device 20 along the first direction, and the rotation of the impeller 11, the cleaning fluid can achieve faster full-area coverage of the fan 10 compared to the control method of Embodiment 2.

[0127] As a preferred solution, controlling the impeller 11 to rotate at varying speeds enables the clean fluid to fully cover the fan 10 within a relatively short time.

[0128] Example 5

[0129] Figure 13 This is a schematic diagram of the structure of a device according to Embodiment 5 of the present invention. Figure 13 A block diagram of an exemplary device 120 suitable for implementing embodiments of the present invention is shown. Figure 13 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.

[0130] like Figure 13As 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).

[0131] 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.

[0132] 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.

[0133] 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 13 Not shown; usually referred to as a "hard drive"). Although Figure 13 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] Example 6

[0138] Embodiment 6 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 all embodiments 2, 3 or 4 of this application.

[0139] 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. Computer-readable storage media may include, for example, but not limited to: electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: electrical connections having one or more wires, portable computer disks, hard disks, 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 devices, magnetic storage devices, 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 conjunction with an instruction execution system, apparatus, or device.

[0140] 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.

[0141] 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.

[0142] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—as well as conventional procedural programming languages—such as the "C" language 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).

[0143] 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 an extractor hood, said extractor hood comprising a fan and a cleaning device, said cleaning device being located at the air inlet side of said fan and being capable of emitting a cleaning fluid, said fan comprising an impeller, characterized in that, The control method comprises: controlling the cleaning device to reciprocate along a first direction, and simultaneously, controlling the cleaning device to swing around the first direction, the first direction being perpendicular to or out of plane with the impeller axis direction; controlling the cleaning device to swing around the first direction comprises: along the first direction, the swing angle of the cleaning device first increases and then decreases during the movement of the cleaning device from one end of the impeller to the other end of the impeller; the swing angle of the cleaning device corresponds to the length of a chord formed by the swing direction of the cleaning device and the outer contour circle of the impeller.

2. The control method according to claim 1, characterized by, The control method further comprises: simultaneously, controlling the impeller to rotate.

3. The control method according to claim 2, characterized by, controlling the impeller to rotate comprises: controlling the impeller to rotate at variable speed.

4. The control method according to claim 1, characterized by, The reciprocating motion is single-trip uniform motion, single-trip acceleration motion or single-trip deceleration motion.

5. A range hood characterized by The control method of claims 1-4 is adopted for control, comprising: a fan (10) comprising an impeller (11); a cleaning device (20) arranged at the air inlet side (116) of the impeller (11), and the cleaning device (20) is capable of emitting cleaning fluid; a first driving device (30) configured to drive the cleaning device (20) to swing around a first direction, the first direction being perpendicular to or out of plane with the axis of the impeller (11); and a second driving device (90) configured to drive the first driving device (30) to reciprocate along the first direction.

6. The range hood according to claim 5, wherein The cleaning device (20) is pivoted to the second driving device (90); the first driving device (30) comprises: a driving body (31) pivoted to the output end (91) of the second driving device (90); and an output member (32) capable of linear motion relative to the driving body (31), the free end of the output member (32) being pivoted to the cleaning device (20).

7. The range hood according to claim 5, wherein The cleaning device (20) comprises a jet port (21131), the area of the jet port (21131) being 1 / 100-1 / 20 of the area enclosed by the outer contour of the impeller (11).

8. The range hood according to claim 5, wherein, The cleaning device (20), the first driving device (30) and the second driving device (90) constitute a cleaning assembly, and the impeller (11) is provided with the cleaning assembly on both sides.

9. An apparatus, comprising: The device comprises: one or more processors; a 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 of any one of claims 1-4.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the control method of any one of claims 1-4.

Images