CN109099481A - Range hood and its method, cleaning device and storage medium - Google Patents

Abstract

The application embodiment provides a kind of cleaning device and cleaning method for range hood, belongs to household appliance technical field.Range hood includes spiral case, the wind wheel being mounted in the spiral case and the motor for driving the wind wheel rotation, and cleaning method includes: to inject cleaning solution into the spiral case；The cleaning solution is detected in the liquid level of the spiral case bottom；Judge whether the liquid level reaches predetermined fluid level；In the case where judging that the liquid level reaches the predetermined fluid level, the wind wheel interval sex reversal is controlled.Through the above technical solutions, can be in the cleaning process of range hood, the time of the blade continuous contact of cleaning solution and wind wheel is longer, can play better cleaning effect.

Description

Range hood and its method, cleaning device and storage medium

Technical field

This application involves fields of home appliance technology, and in particular, to a kind of to fill for the method for range hood, cleaning It sets, range hood and storage medium.

Background technique

Range hood in kitchen environment using to remove soot gas, when range hood long-term work for a period of time after, A large amount of greasy dirt can be accumulated on the inner wall of its spiral case, the surface of wind wheel, greasy dirt, which will lead to load, to be increased, noise increase, reduce and inhale Oil smoke effect.In the related technology, the cleaning device of range hood is limited to the cleaning effect of range hood, and there are rooms for improvement.

Summary of the invention

The purpose of the application embodiment is to provide a kind of cleaning method and cleaning device for range hood.

To achieve the above object, the application's in a first aspect, providing a kind of cleaning method for range hood, the suction Kitchen ventilator includes spiral case, the wind wheel being mounted in the spiral case and the motor for driving the wind wheel rotation, the cleaning side Method includes: to inject cleaning solution into the spiral case；The cleaning solution is detected in the liquid level of the spiral case bottom；Judge the liquid level Whether predetermined fluid level is reached；In the case where judging that the liquid level reaches the predetermined fluid level, it is intermittent anti-to control the wind wheel Turn.

Optionally, the control wind wheel interval sex reversal includes: to the alternately inverted energization of the motor and power-off；Its The time of middle energization is period first time, and the time of power-off is second time period.

Optionally, the range in period first time is 1 second to 15 seconds, preferably 3 seconds；The second time period Range is 3 seconds to 15 seconds, preferably 5 seconds.

Optionally, the range of the setting speed of the motor reversal be 100 revs/min to 900 revs/min, preferably 300 Rev/min.

Optionally, cleaning method further include: in the wind wheel interval sex reversal up to the first scheduled duration and/or pre- fixing turn Later, it controls the wind wheel and persistently rotates forward or persistently invert the second scheduled duration.

Optionally, after controlling the wind wheel and persistently rotating forward or persistently invert the second scheduled duration by the cleaning solution from It is discharged in the spiral case.

Optionally, cleaning method further include: after the spiral case is discharged in the cleaning solution, control the wind wheel most Big gear inverts scheduled duration.

In the second aspect of the application, a kind of cleaning device for range hood is provided, the range hood includes snail Shell, the wind wheel being mounted in spiral case and the motor for driving the wind wheel rotation, the cleaning device include: cleaning spray Pipe, for injecting cleaning solution into the spiral case；One end of feed pipe, the feed pipe is connected to the cleaning jet pipe, the other end Cleaning solution source can be connected；Water supply control valve is arranged at the feed pipe, for controlling the on-off of the feed pipe；Return water Pipe, one end of the return pipe is connected to the spiral case bottom, for the cleaning solution to be discharged；Water-returning control valve, setting exist At the return pipe, for controlling the on-off of the return pipe；Liquid level detection unit, for detecting the cleaning solution in the snail The liquid level of shell bottom；And controller, the controller are configured to: in the case where starting cleaning operation, being given described in control Water control valve is opened, to inject cleaning solution into the spiral case；Judge whether the liquid level reaches predetermined fluid level；Described in judgement In the case that liquid level reaches the predetermined fluid level, the wind wheel interval sex reversal is controlled.

Optionally, it includes: anti-to motor alternating that the controller, which is configured to control the wind wheel interval sex reversal, To being powered and powering off, wherein the time being powered is period first time, the time of power-off is second time period.

Optionally, the range in period first time is 1 second to 15 seconds, preferably 3 seconds；The second time period Range is 3 seconds to 15 seconds, preferably 5 seconds.

Optionally, the range of the revolving speed of the motor reversal be 100 revs/min to 900 revs/min, preferably 300 turns/ Minute.

Optionally, the controller is further configured to: in the wind wheel interval sex reversal up to the first scheduled duration and/or pre- After fixing turn, controls the wind wheel and persistently rotate forward or persistently invert the second scheduled duration.

Optionally, the controller is further configured to: it is predetermined persistently to rotate forward or persistently invert second in the control wind wheel The water-returning control valve is controlled after duration to open, and the cleaning solution is discharged from the spiral case.

Optionally, the controller is further configured to after the spiral case is discharged in the cleaning solution, controls the wind Wheel is in maximum bit reversal scheduled duration.

In the third aspect of the application, provide a kind of range hood, including spiral case, the wind wheel being mounted in the spiral case with And the motor for driving the wind wheel rotation, wherein the range hood further includes that the above-mentioned cleaning for range hood fills It sets.

In the fourth aspect of the application, a kind of storage medium is provided, computer-readable instruction is stored thereon with, the computer It enables the processor to execute the above-mentioned cleaning method for range hood when readable instruction is executed by processor.

Through the above technical solutions, can be in the cleaning process of range hood, the blade of cleaning solution and wind wheel persistently connects The time of touching is longer, can play better cleaning effect.

The other feature and advantage of the application embodiment will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is to further understand for providing to the application embodiment, and constitute part of specification, with Following specific embodiment is used to explain the application embodiment together, but does not constitute the limit to the application embodiment System.In the accompanying drawings:

Fig. 1 shows the structural schematic diagram of the cleaning device of traditional range hood；

Fig. 2 shows the flow charts according to the cleaning method for range hood of presently filed embodiment；

Fig. 3 shows the method flow diagram of the wind wheel interval sex reversal according to presently filed embodiment；

Fig. 4 shows the further method flow diagram of the wind wheel interval sex reversal according to presently filed embodiment；

Fig. 5 shows the method flow diagram of the wind wheel interval sex reversal according to the further embodiment of the application；

Fig. 6 shows the stream of additional or alternative embodiments the cleaning method for range hood according to the application Cheng Tu；

Fig. 7 shows the structure of the range hood according to presently filed embodiment and the cleaning device for range hood Schematic diagram；

Fig. 8 shows the function of the component relevant to heating function in the cleaning device according to presently filed embodiment Block diagram；

Fig. 9 shows the connection between the controller, driving circuit and motor of an embodiment according to the application Relational graph；

Figure 10 shows the functional block diagram of the cleaning device for range hood according to presently filed embodiment.

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the application embodiment.It should be understood that The specific embodiments described herein are only used for describing and explaining the application embodiment, are not intended to limit this application implementation Mode.

In this application, in the absence of explanation to the contrary, the noun of locality used such as " above/above and below/under, The left side/left side, the right/right side " is typically referred to referring to upper and lower, left and right shown in the drawings." inside and outside " typically refers to relative to each Component profile itself it is inside and outside.

The term " rotating forward " used in this application refers to turn with wind wheel when range hood normal work (i.e. fume-exhausting) The dynamic identical rotation in direction, term " reversion " refer to the rotation opposite with rotating forward.Term " the rotating forward side used in this application To " refer to rotation direction identical with the rotation direction of wind wheel when range hood normal work (i.e. fume-exhausting), term " reversion " Refer to the rotation direction opposite with forward rotation direction.

Fig. 1 shows the structural schematic diagram of the cleaning device of traditional range hood.As shown in Figure 1, range hood 100 Cleaning device may include spiral case 101, wind wheel 105, the motor (not shown) for driving wind wheel, inlet pipeline 106, with Inlet pipeline 106 be connected to water inlet 104, outlet pipeline 107, the control valve 103 being connected to 101 bottom of spiral case and with control The pump housing 108 that valve 103 processed is connected to outlet pipeline 107.Installation cavity 102 can be limited in spiral case 101, wind wheel 105 can be rotated Ground is located in installation cavity 102.The blade around 105 periphery of wind wheel can be set on wind wheel 105.Motor can drive wind wheel 105 rotations.Range hood 100 can also include containing lubricating cup, carry out the oil generated when fume-exhausting operation for collecting range hood Drop.When needing to clean range hood 100, traditional mode is that a certain amount of water is injected into spiral case 101, is then controlled The rotation of motor driven wind wheel 105 a period of time processed after the washing, will to clean to wind wheel 105 and 101 inner wall of spiral case Water discharge.The cleaning effect of this traditional cleaning way is not satisfactory, and there are rooms for improvement.

A kind of aspect possibly improved can be the rotating manner of wind wheel in cleaning process.Fig. 2 shows according to this Shen The flow chart of the cleaning method for range hood of embodiment please.The inventive concept total as one, Fig. 2 shows it is clear Washing method may comprise steps of.

In step S210, cleaning solution is injected into the spiral case of range hood.Cleaning solution may include being suitable for cleaning snail The fluid of shell and/or wind wheel, including but not limited to, water, contains the liquid, preceding for removing stain/go oil component at the water for being added to detergent State other forms, such as mist, vaporous etc. of object.Cleaning solution can be injected into spiral case using various ways.In this Shen In an embodiment please, inlet (such as nozzle or spray head) can be set in spiral case.Inlet can be set in snail Any position inside shell.In one example, the top in spiral case can be set in inlet.In another example, into The bottom in spiral case can be set in liquid mouth.In another example, multiple inlets can be used, be separately positioned in spiral case Different location, such as top, bottom or any other positions.Inlet can be connected to inlet pipeline, and inlet pipeline can be with It is connected to cleaning solution source.In one example, cleaning solution source can be water system, such as running water valve or tap, will intake Piping connection can inject water to running water valve or tap into spiral case.In another example, a container can be provided, Such as water box (or water holding box).When being cleaned, cleaning solution can be poured into water box.Inlet pipeline can connect Cleaning solution in water box, is pumped into inlet pipeline by water pump and is then injected into spiral case clearly by inlet by water flowing pump Clean liquid.The mode of these injection cleaning solutions is only exemplary, and one of ordinary skill in the art are understood that can also there is others Mode injects cleaning solution into spiral case, such as the desired amount of cleaning solution directly can be injected into spiral case using utensil is filled with water.

In the further embodiment of the application, the cleaning solution being injected into spiral case can be heated.One In a example, heating element can be set in inlet pipeline, the cleaning solution for being injected into spiral case is added by heating element Heat.In another example, heating element can be set on spiral case, to heat to the cleaning solution being injected into spiral case. In further example, heating element may include the heat exchanger tube at least about spiral case bottom.The thermal medium of heat exchanger tube can be with Steam generator from range hood.Spiral case bottom-heated can be given by heat exchanger tube, to add to the cleaning solution in spiral case Heat.Cleaning solution after heating is more able to ascend the cleaning effect of cleaning solution.The range of the temperature of the cleaning solution of heating for example can be with It is 40 degrees Celsius to 80 degrees Celsius, preferably 60 degrees Celsius.

In step S220, liquid level of the detection cleaning solution in spiral case bottom.The amount of the cleaning solution of injection can at least can Guarantee the effect that cleaning is played to wind wheel and spiral case.It usually to the cleaning of wind wheel and spiral case is stirred in spiral case by rotation wind wheel The cleaning solution amount of cleaning solution being cleaned, therefore injected at least want that a part of wind wheel can be submerged.The application's In one embodiment, the cleaning solution of injection can be required at least to be not less than the leaf of bottommost on wind wheel in the liquid level of spiral case bottom Distal end in the both ends of piece relative to spiral case bottom, that is to say, that the cleaning solution of injection can at least be totally submerged bottommost Blade.In the another embodiment of the application, the cleaning solution of injection can also only submerge a part of the blade of bottommost, Such as half, one third of blade etc..

In step S230, judge whether liquid level reaches predetermined fluid level.

Can there are ways to determine cleaning solution liquid level.In the embodiment of the application, liquid can be set Level sensor detects the liquid level of cleaning solution.For example, liquid level sensor can be arranged in spiral case bottom, snail is injected into for detecting The liquid level of the cleaning solution of shell.Liquid level sensor can be to controller (such as the micro-control unit of range hood (Microcontroller Unit；MCU) or other relevant control unit) send liquid level information, when being injected into spiral case When the liquid level of cleaning solution reaches predetermined fluid level, controller can close inlet pipeline (such as control inlet pipeline in solenoid valve It closes).Type, structure and its function of liquid level sensor are known to one of ordinary skill in the art, to avoid so that the application Embodiment wants point fuzziness, and liquid level sensor is not described in detail in this application, but fields technology people Member is it is appreciated that any type of liquid level sensor that can be realized present invention design should also be as the model for belonging to the application It encloses.In the another embodiment of the application, note can be determined by detecting the flow for the cleaning solution being injected into spiral case The liquid level of the cleaning solution entered.In one example, flow sensor can be set.It is flowed through for example, flow sensor can detecte The flow of the cleaning solution of inlet pipeline.Since the volume of spiral case bottom can learn that cleaning solution is located at spiral case bottom in advance Liquid level and the corresponding relationship of amount of cleaning solution can be previously obtained (or determine).When beginning injects cleaning solution to spiral case When, flow sensor can detecte the flow of the cleaning solution injected to spiral case, and feed back flow information to controller.Controller root The amount for being injected into the cleaning solution of spiral case can be calculated according to the flow information of feedback, and can be according to the amount of cleaning solution and liquid level Corresponding relationship obtains the liquid level of cleaning solution.When the amount of cleaning solution reaches preset value, controller can close inlet pipeline.Flow Type, structure and its function of sensor be known to one of ordinary skill in the art, to avoid so that the application embodiment Point fuzziness is wanted, is described in detail in this application without flow sensor, but one of ordinary skill in the art are appreciated that Any type of flow sensor that can be realized present invention design should also be as belonging to scope of the present application.In the application Other embodiments in, the cleaning solution of predetermined amount can be packed into the external container (such as water box or water holding box), then Cleaning solution can be pumped into spiral case by pumping.

In step S240, in the case where judging that liquid level reaches predetermined fluid level, wind wheel interval sex reversal can control.Separately Outside, in the case where judging that liquid level reaches predetermined fluid level, can stop injecting cleaning solution into spiral case.For example, controller can be with Close inlet pipeline.

The cleaning way of traditional range hood is that wind wheel persistently rotates, and stirs the cleaning solution of spiral case bottom to spiral case inside It is cleaned, and gets rid of the grease stain being attached on wind wheel under the influence of centrifugal force.But traditional mode comes with some shortcomings. Wind wheel persistently rotates, and the time that each blade on wind wheel is contacted with cleaning solution duration is too short, leads to cleaning solution especially Containing deoiling ,/cleaning solution of stain ingredient is gone to deoil/goes the effect of stain insufficient.And wind speed round is too fast, may be such that snail Cleaning solution in shell splashes out from air inlet and pollutes hearth, and wind speed round is too low, and cleaning effect is undesirable.And the implementation of the application Mode by the way of wind wheel interval sex reversal, can make that each blade on wind wheel contacts with cleaning solution duration when Between it is longer, thus the effect of the stain of deoiling/go of cleaning solution can play more sufficiently.

Wind wheel interval sex reversal can be controlled by control motor.In the certain embodiments of the application, fume-exhausting The motor of machine can be direct current generator.By being powered to direct current generator intermittent (discontinuously), (such as reversed energization) be may be implemented Control to the interval sex reversal of wind wheel.

Specifically, motor can be controlled by changing the direction for driving the motor both end voltage (or electric current) of wind wheel Driving wind wheel inverts and controls the conduction time to motor to realize second of example modes.Fig. 3 is shown according to the application's The method flow diagram of the wind wheel interval sex reversal of embodiment.It specifically, can be (i.e. reversed to period electrical power first time It is powered) so that motor driven wind wheel inverts an angle, powered off later to motor, is passing through second time period and then giving In electrical power period first time, thus wind wheel inverts an angle again.This operation can be repeated, wind wheel " interval is achieved in Property " reversion.The value of period first time and second time period can be determined according to practical application situation.

In presently filed embodiment, period first time be may range from 1 second to 15 seconds, second time period It may range from 3 seconds to 15 seconds.In the preferred embodiment of the application, period first time can be less than week the second time Phase, the time that some blades of wind wheel can be enabled persistently to be immersed in cleaning solution in this way are relatively longer.The application's In embodiment, the setting speed of wind wheel reversion may range from 100 revs/min to 900 revs/min.In addition, due to wind wheel On blade there is blade angle, wanted small by the resistance of cleaning solution when being rotated forward when wind wheel inverts by the resistance ratios of cleaning solution, because The revolving speed of reversion can be configured bigger in the revolving speed setting of wind wheel interval sex reversal by this, even if in this way, reverse It is larger, it will not exceedingly stir cleaning solution splashing.For example, wind wheel interval sex reversal is set in the example of the application Determining revolving speed can be 800 revs/min.

In the embodiment of the application, can be controlled by setting timer to electrical power and power-off when Between, i.e. period first time and second time period.For example, predetermined time value can be preset to timer, work as controller When the motor is energized, timer starts and starts timing, can be to control when the timing of timer reaches predetermined time value for control Device processed sends trigger signal, can stop powering off to motor when controller receives trigger signal, and waiting timer is next A trigger signal.In one example, single timer can be used and to two predetermined time value of single timer setting, when When the timing of timer reaches a last predetermined time value, timer resets and restarts time-count cycle.For example, with A period of time can be 5 seconds, and second time period can be for 10 seconds.Two predetermined time value can be respectively set as 5 seconds and 15 seconds, when controller control start to electrical power (such as controller can control motor circuit loop in it is controllable Switch on-off) when, controller triggering timer starts timing.When the timing of timer reaches 5 seconds, sends and touch to controller It signals, controller controls when receiving the trigger signal to be powered off to motor.When the timing of timer reaches 15 seconds, again to Controller sends trigger signal.It controls again again when controller receives the trigger signal to electrical power.At this point, timer is multiple Position is reset, and restarts timing, to carry out next circulation.In another example, it is right respectively that two timers can be used Period first time and second time period carry out timing.Can also be for 5 seconds with period first time, second time period can be with For 10 seconds.Predetermined time value can be set for first timer as 5 seconds, for second pre- timing of timer setting Between value be 10 seconds.When controller starts when the motor is energized, controller triggers first timer and starts timing.Determine when first When device timing when reaching 5 seconds, send trigger signal to controller, controller controls disconnected to motor when receiving the trigger signal Electricity.Second timer is also triggered and starts timing at this time.When the timing of second timer reaches 10 seconds, to controller Trigger signal is sent, is controlled again again when controller receives the trigger signal to electrical power.At this point, first timer is multiple Position, which is reset, simultaneously starts timing, and second timer is only resetted and reset but not-time.Second timer still needs until the One timer just starts timing when sending trigger signal.Triggering timer starts timing and reset is reset and the two are fixed When device and controller between the mode of interaction be technology known to the field technical staff, to this in the application embodiment It repeats no more.

Inventors have found that direct current generator every time after reversion is powered, will not rotate, but have a stagnation immediately, it It just starts turning afterwards.As a result, in presently filed embodiment, period first time can be set based on the stagnation.Specifically Ground needs to consider the stagnation and the wind wheel practical time inverted when setting period first time.For example, the stagnation Time can be 2 seconds, it is expected that the wind wheel practical time inverted is 2 seconds, then period first time can be set as 4 seconds.In addition, hair Bright people also found that, if being added with foaming agent in cleaning solution, wind wheel reversing time is too long, and cleaning solution can be made to spume seriously. Consider these factors, a critical value can be selected for period first time, is i.e. the critical value can make after electrical power both Wind wheel can be driven to invert, and be avoided that cleaning solution spumes seriously.In the preferred embodiment of the application, the critical value It can be 3 seconds, i.e. period first time can be 3 seconds, and second time period can be 5 seconds.In addition, tight in order to avoid spuming Weight, being adapted to property reduce the revolving speed of wind wheel interval sex reversal.In the preferred embodiment of the application, wind wheel is intermittent The setting speed of reversion can be 300 revs/min.

The condition completed for determining wind wheel intermittence reverse turn operation can be set.In the embodiment of the application In, the operating time of wind wheel intermittence reverse turn operation can be set, when wind wheel intermittence reverse turn operation reaches the operating time, It can determine that wind wheel intermittence reverse turn operation is completed.Fig. 4 shows the wind wheel interval sex reversal according to presently filed embodiment Further method flow diagram.Method shown in Fig. 4 increases determining wind wheel interval sex reversal behaviour compared with shown in Fig. 3 The step of whether completing.In the embodiment illustrated in fig. 4, it is intermittent anti-can also to be included in wind wheel for wind wheel interval sex reversal Turn operation reach scheduled duration in the case where, determine wind wheel intermittence reverse turn operation complete.The range of the scheduled duration for example may be used Think 3 to 15 minutes, preferably 9 minutes.

In the further embodiment of the application, wind wheel interval sex reversal can also include that control wind wheel persistently rotates. Fig. 5 shows the method flow diagram of the wind wheel interval sex reversal according to the further embodiment of the application.Method shown in Fig. 5 Compared with method above-mentioned, the step of control wind wheel persistently rotates is increased.

Specifically, with reference to Fig. 5, after the completion of wind wheel intermittence reverse turn operation, control wind wheel persistently rotates a pre- timing It is long.The range of the scheduled duration for example can be 3 to 15 minutes, preferably 9 minutes.Wind wheel is carried out in interval sex reversal before After " immersion ", wind wheel, which persistently rotates, under the influence of centrifugal force to be thrown away the grease stain being attached on wind wheel or spot, by This can preferably clean wind wheel.In one example, the revolving speed of duration rotation can be faster than the revolving speed of interval sex reversal, Revolving speed can provide bigger centrifugal force fastly.But one of ordinary skill in the art are appreciated that the revolving speed of duration rotation need not Be limited to it is faster than the revolving speed of interval sex reversal, in other examples, duration rotation revolving speed can be less than or can be equal to The revolving speed of interval sex reversal.

In presently filed embodiment, duration rotation may include various modes.In the first mode, duration Rotation can invert for duration.In second of mode, duration rotation can rotate forward for duration.In the third mode In, duration rotation can be first to continue sex reversal for a period of time, then duration rotates forward a period of time.In the 4th kind of mode, Duration rotation can rotate forward a period of time for first duration, then persistently sex reversal is for a period of time.Due to the blade construction of wind wheel, So that the resistance that the resistance that wind wheel encounters cleaning solution in reversion encounters when being less than and rotating forward, thus in presently filed embodiment In, the revolving speed of lasting sex reversal can be set as higher than the revolving speed that duration rotates forward.

In step s 250, cleaning solution is discharged from spiral case.Specifically, scheduled duration can be reached executing step S240 Later, cleaning solution is discharged from spiral case.Scheduled duration may be set according to actual conditions.For example, can be according to the effect of cleaning Fruit sets scheduled duration.For another example cleaning effect and power consumption can be taken into account to set scheduled duration.Cleaning solution is from spiral case The mode of discharge can there are many.In one example, pump can be used to extract the cleaning solution after the completion of cleaning from spiral case out. In another example, outlet valve, such as solenoid valve can be set in spiral case bottom.In the process of cleaning, outlet valve keeps closing It closes.When needing that cleaning solution is discharged, control outlet valve is opened so that cleaning solution to be discharged from spiral case.The cleaning solution of discharge can be used Container (such as water box or water holding box) contains, or connection drainage pipeline is exhausted directly to sewer.In addition, the one of the application In a embodiment, when cleaning solution is discharged from spiral case, wind wheel is no longer rotated.That is, motor is maintained at power-off shape State.

Fig. 6 shows the stream of additional or alternative embodiments the cleaning method for range hood according to the application Cheng Tu.Embodiment shown in Fig. 6 with Fig. 2 shows embodiment it is roughly the same, the difference is that, the implementation shown in Fig. 6 The cleaning method that mode provides can also include step S260, after spiral case is discharged in cleaning solution, control wind wheel rotation.Clear For clean liquid after being discharged in spiral case, the blade and spiral case of wind wheel can still be stained with a small amount of cleaning solution, and control wind wheel continues to rotate Both the cleaning solution being attached on wind wheel can be thrown away by centrifugal force, air can also be sucked and generate flowing sky in spiral case Gas accelerates air-drying for remaining cleaning solution.In the embodiment of the application, after cleaning solution is discharged, wind can control Wheel rotates forward a scheduled duration (for example, 1 minute, 2 minutes etc.).For example, can control wind wheel, in maximum gear, (i.e. maximum setting turns Speed) rotate forward scheduled duration.In the another embodiment of the application, after cleaning solution is discharged, wind wheel reversion can control One scheduled duration (for example, 1 minute, 2 minutes etc.).For example, it is anti-in maximum gear (i.e. maximum setting speed) to can control wind wheel Turn scheduled duration.

Fig. 7 shows the structure of the range hood according to presently filed embodiment and the cleaning device for range hood Schematic diagram.With reference to Fig. 7, in presently filed embodiment, range hood 200 may include equipped with spiral case 2, wind wheel 3, for driving The motor that dynamic wind wheel 3 rotates and the cleaning device for cleaning range hood 200.Wherein, wind wheel 3 can be located at spiral case 2 In volute chamber.Cleaning device may include feed pipe 41 and return pipe 42.The upstream end of feed pipe 41 can connect cleaning solution source And downstream can connect cleaning jet pipe 47, cleaning jet pipe 47 can protrude into spiral case 2 with spraying cleaning liquid.

In addition, in the embodiment of the application, can the spiral case bottom of range hood 200 be set with leakproofness compared with Good water storage box 9, the storage chamber of the water storage box 9 are connected to spiral case bottom cavity, and the bottom of the water storage box 9 is equipped with belt switch control The bottom end opening of valve processed, the bottom end opening connect the hose extended downwardly towards oil box 8.As it can be seen that since water storage box 9 has preferably Leakproofness, therefore to simplify the processing to spiral case 2, be conducive to when processing spiral case 2 without being sealed processing to it Improve the production efficiency of kitchen ventilator 200.

In the embodiment of the application, cleaning solution source may include the container for holding cleaning liquor, such as contain Water tank or water holding box.Water box or water holding box can be external, can also be built in the shell of range hood 200.At this In embodiment, cleaning device can also include the pump housing, for pumping the cleaning solution of splendid attire in a reservoir by feed pipe 41 Into spiral case 2.

In the another embodiment of the application, cleaning solution source may include water system, such as running water pipe.Water supply The upstream end of pipe 41 is connectable to running water pipe.In the embodiment of the application, cleaning jet pipe 47 goes out cleaning solution One end nozzle (or spray head) can be set.The effect of nozzle (or spray head) is to change the cleaning solution come out from cleaning jet pipe 47 Form, such as collection pencil, dispersed, mist etc..Any position inside spiral case 2 can be set in nozzle (or spray head). In one example, the top in spiral case 2 can be set in nozzle (or spray head).In another example, nozzle (or spray head) The bottom in spiral case 2 can be set.In another example, nozzle (or spray head) may include multiple nozzles (or spray head), The different location being separately positioned in spiral case 2, such as top, bottom or any other positions.

Cleaning solution may include the fluid suitable for cleaning spiral case 2 and/or wind wheel 3, and including but not limited to, water is added to The water of detergent, containing going stain/remove the liquid of oil component, other forms, such as mist, vaporous of aforementioned object etc..For example, In the embodiment that the upstream end of feed pipe 41 is connectable to running water pipe, cleaning solution can be water (tap water).At this In the case of kind, cleaning agent (such as comprising foaming agent) can be added, in water in addition to promote cleaning effect.Cleaning agent can wrap Including has the chemical products for going grease stain ability known to one of ordinary skill in the art.

In the embodiment of the application, the top of return pipe 42 can be connected to the spiral case bottom cavity of spiral case 2 and Bottom end can be connected to external sewage pipe.By the way that feed pipe 41 is connected to running water pipe and return pipe 42 is connected to external row Dirt pipe, user is in the cleaning process of range hood 200 without self-contained water reservoir and without voluntarily configuring cleaning solution 48, work Amount is reduced, and the cleaning efficiency of range hood 200 is also improved, to be effectively improved the usage experience of user.

In presently filed embodiment, cleaning device may include be arranged in feed pipe 41 upstream end to water management Valve 43 and the water-returning control valve 44 being arranged in return pipe 42.At this point, control water supply control valve 43 or water-returning control valve can be passed through 44 open or close is to control water for cleaning inflow or discharge range hood 200, to improve when range hood 200 cleans The degree of automation.

Specifically, cleaning device can also include controller, and the control terminal of water supply control valve 43 and water-returning control valve 44 can To be connected to controller, controller can be controlled separately 44 open or close of water supply control valve 43 and water-returning control valve.In this Shen In example please, water supply control valve 43 and water-returning control valve 44 can be solenoid valve.

Fig. 8 shows the function of the component relevant to heating function in the cleaning device according to presently filed embodiment Block diagram.In the embodiment of the application, cleaning device can also include heating device 46 and temperature-sensing element 48.Heating dress 46 are set for heating to cleaning solution, further to promote the ability of cleaning greasy dirt of cleaning solution, to promote range hood 200 Cleaning efficiency.Temperature-sensing element 48 is used to detect the temperature of the cleaning solution after heating and feeds back the temperature detected to controller 201. Controller 201 can control heating device 46 according to the temperature of feedback and cleaning solution is heated to desired temperature.The model of desired temperature Enclosing for example to be 40 degrees Celsius to 80 degrees Celsius, preferably 60 degrees Celsius.Temperature-sensing element 48 may include the dress for capableing of thermometric It sets, including but not limited to, such as thermocouple, thermistor, infrared measurement of temperature element etc..

Further, in presently filed embodiment, also oil return pipe can be set in the oil box 8 of range hood 200, it should Oil return pipe can connect return pipe 42, i.e. greasy dirt in oil box and the cleaning solution in the cavity of spiral case bottom can pass through return pipe 42 are expelled to external sewage pipe, make user without self-cleaning oil box, to effectively promote its usage experience.

The rotation of wind wheel 3, which can be through motor, to be driven.In numerous applications, for driving the motor of wind wheel 3 can To be direct current generator.Controller (such as controller 201) can control the operation of direct current generator, including but not limited to, such as electricity Machine rotating forward, motor reversal, motor stalling etc..Fig. 9 shows controller, the driving circuit of an embodiment according to the application And the annexation figure between motor.As shown in figure 9, driving circuit 210 may include rectification module 211, filter module 212 With switch module 213.Rectification module 211 can be used for will the AC rectification from alternating current at direct current.Rectification module 211 can To include but is not limited to Half bridge rectifier circuit, full bridge rectifier, bridge rectifier.Filter module 212 can be used for will be whole Direct current after stream is filtered.Typical filter module 212 may include LC filter circuit.Switch module 213 may include One or more controllable switches, controller 201 can be realized by the controllable switch in control switch module 213 to motor 214 Energization, power-off, rotating forward, reversion, revolving speed etc. control.The example of controllable switch can include but is not limited to triode, field effect Ying Guan, insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) etc..Driving circuit 210 In modules be that one of ordinary skill in the art are known and more common, therefore are not described in this application each The specific circuit structure of module.It can there are ways to control the revolving speed of motor 214.In the embodiment of the application In, the voltage (and/or electric current) of motor 214 can be supplied to by adjusting to adjust the revolving speed of motor 214.In an example In, controller 201 can be adjusted voltage (and/or electric current) using pulsewidth modulation (PWM), and the revolving speed of motor 214 is adjusted with this.

The example of controller 201 can include but is not limited to, general processor, application specific processor, conventional processors, number Signal processor (DSP), multi-microprocessor and the associated one or more microprocessors of DSP core, controller, microcontroller Device, specific integrated circuit (ASIC), field programmable gate array (FPGA) circuit, other any kind of integrated circuits (IC) with And state machine etc..

It may be configured to execute in the embodiment of the foregoing description according to the cleaning device of presently filed embodiment and appoint Meaning is used for the cleaning method of range hood 200.

In the embodiment of the application, controller 201 may be configured to (such as start in starting cleaning operation Cleaning procedure) in the case where control water supply control valve 43 and open, cleaning solution flows through cleaning by feed pipe 41 and jet pipe 47 and injects To spiral case 2.It is needing that cleaning solution is pumped into the embodiment in spiral case 2 using pump, controller 201 can be configured to Control pump startup.The cleaning solution for being injected into spiral case 2 can be heated to desired temperature, such as 60 degrees Celsius by heating device 46.

Figure 10 shows the functional block diagram of the cleaning device for range hood according to presently filed embodiment.With reference to Figure 10, in addition to including the above-mentioned component in cleaning device, cleaning device can also include liquid level detection unit 220, can To be communicated with controller 201, for detecting cleaning solution in the liquid level of 2 bottom of spiral case.

Specifically, liquid level detection unit 220 may be configured to the liquid level for the cleaning solution that detection is injected into spiral case 2, and The information (liquid level information) that instruction detects liquid level is sent to controller 201.Controller 201 can be configured to according to the liquid Position information determines whether the liquid level of cleaning solution reaches predetermined fluid level, the case where the liquid level for determining cleaning solution reaches predetermined fluid level Under, it can control the closing of water supply control valve 43, to stop injecting cleaning solution to spiral case 2.Described in embodiment as in the previous, in advance Determining liquid level can be set at least be not less than the distal end on wind wheel 3 in the both ends of the blade of bottommost relative to 2 bottom of spiral case, That is, the cleaning solution of injection can at least be totally submerged the blade of bottommost.In the another embodiment of the application, The cleaning solution that predetermined fluid level can be set to injection can only submerge a part of the blade of bottommost, such as two points of blade One of, one third etc..

In the embodiment of the application, liquid level detection unit 220 may include liquid level sensor, clear for detecting Liquid level of the clean liquid in 2 bottom of spiral case.In the alternative embodiments of the application, as described above, liquid level detection unit 220 can To include flow sensor, it is configured to detect feed pipe 41 or cleans the flow of the cleaning solution in jet pipe 47, and to controller 201 send the signal (flow signal) of instruction flow.Controller 201 may be configured to determine cleaning solution according to flow signal Liquid level whether reach predetermined fluid level.Specifically, controller 201 can be injected into clear in spiral case 2 according to flow signal calculating The amount of clean liquid.It, can basis since the volume of the volute chamber in the shape and spiral case 2 of spiral case 2 can be known in advance The amount of the cleaning solution of injection determines liquid level of the cleaning solution in spiral case 2.

Controller 201 may be configured to judge whether liquid level reaches predetermined fluid level；Reach predetermined in the liquid level of cleaning solution In the case where liquid level, controller 201 can be configured to control wind wheel 3 at least along a rotation direction interval sex reversal.Specifically Ground, controller 201 can control the conducting and disconnection of switch module 213, be controlled with this to the energization and power-off of motor 214 Opportunity, to realize the interval sex reversal of wind wheel 3.In the embodiment of the application, cleaning device can also include or Person's controller 201 may include timer, be configured to be timed the conduction time of motor 214 and power-off time, with reality The interval sex reversal of existing wind wheel 3.Specifically, conduction time and the power-off time of motor 214 can be set separately to timer Predetermined time value controls conduction time and the power-off time of motor 214 with this.

In the embodiment of the application, when controller 201 may be configured to energization first reversed to motor 214 Between the period so that motor 214 drive wind wheel 3 invert an angle, later to motor 214 power off, pass through second time period And then be powered period first time to motor 214, thus wind wheel 3 inverts an angle again.This operation can be repeated, thus Realize wind wheel 3 " intermittence " reversion.The value of period first time and second time period can be according to practical application situation come really It is fixed.

In presently filed embodiment, period first time be may range from 1 second to 15 seconds, second time period It may range from 3 seconds to 15 seconds.In the preferred embodiment of the application, period first time can be less than week the second time Phase, the time that some blades of wind wheel 3 can be enabled persistently to be immersed in cleaning solution in this way are relatively longer.The application's In embodiment, the setting speed of the reversion of wind wheel 3 may range from 100 revs/min to 900 revs/min.In addition, as before It is described, since the blade on wind wheel 3 has blade angle, cleaned when being rotated forward when wind wheel 3 inverts by the resistance ratios of cleaning solution The resistance of liquid wants small, therefore the revolving speed of reversion can be configured bigger in the setting of the revolving speed of wind wheel interval sex reversal, this Sample will not exceedingly stir cleaning solution splashing even if reverse is larger.For example, in the example of the application, wind wheel The setting speed of interval sex reversal can be 800 revs/min.

In the embodiment of the application, it can be controlled by setting timer and be powered and power off to motor 214 Time, i.e. period first time and second time period.For example, predetermined time value can be preset to timer, work as control When the control of device 201 processed is powered to motor 214, timer starts and starts timing, when the timing of timer reaches predetermined time value When can to controller 201 send trigger signal, can stop to electrical power when controller 201 receives trigger signal, and Next trigger signal of waiting timer.In one example, single timer can be used and to single timer setting Two predetermined time value, when the timing of timer reaches a last predetermined time value, timer resets and restarts Time-count cycle.For example, can be for 5 seconds with period first time, second time period can be for 10 seconds.It can be pre- by two Value of fixing time is respectively set as 5 seconds and 15 seconds, start to be powered to motor 214 when controller 201 controls (such as controller 201 can With the on-off of control switch module 203) when, controller 201 triggers timer and starts timing.When the timing of timer reaches 5 seconds When, trigger signal is sent to controller 201, controller 201 controls when receiving the trigger signal to be powered off to motor 214.When fixed When device timing when reaching 15 seconds, send trigger signal to controller 201 again.When controller 201 receives the trigger signal Control is powered to motor 214 again again.It is reset at this point, timer resets, restarts timing, to carry out next circulation.? In another example, two timers can be used, timing is carried out to period first time and second time period respectively.Also with Period first time can be 5 seconds, and second time period can be for 10 seconds.It can be predetermined for first timer setting Time value is 5 seconds, sets predetermined time value as 10 seconds for second timer.When controller 201 starts to be powered to motor 214 When, controller 201 triggers first timer and starts timing.When the timing of first timer reaches 5 seconds, to controller 201 send trigger signal, and controller 201 controls when receiving the trigger signal to be powered off to motor 214.Second timer at this time Also it is triggered and starts timing.When the timing of second timer reaches 10 seconds, trigger signal, control are sent to controller 201 Control is powered to motor 214 again again when device 201 processed receives the trigger signal.At this point, first timer is resetted and is reset simultaneously Start timing, and second timer only resets reset but it is not-time.Second timer, which still needs, waits until first timing Device just starts timing when sending trigger signal.Triggering timer starts timing and resets clearing and the two timers and control The mode of interaction between device 201 processed is technology known to the field technical staff, in the application embodiment no longer to this It repeats.

Before as described in embodiment, it is contemplated that be added in the dead time of the reversion energization of motor 214 and cleaning solution The case where foaming agent, in the preferred embodiment of the application, period first time can be 3 seconds, and second time period can be with It is 5 seconds.In addition, serious in order to avoid spuming, being adapted to property reduces the revolving speed of wind wheel interval sex reversal.The one of the application In a preferred embodiment, the setting speed of wind wheel interval sex reversal can be 300 revs/min.

The condition completed for determining wind wheel intermittence reverse turn operation can be set.In the embodiment of the application In, controller 201 can be configured to determine whether wind wheel intermittence reverse turn operation is completed.Specifically, at the application one In embodiment, controller 201 can be configured to determine whether wind wheel intermittence reverse turn operation reaches scheduled duration, in wind In the case that the intermittent reverse turn operation of wheel reaches the scheduled duration, it can determine that wind wheel intermittence reverse turn operation is completed.This is predetermined The range of duration for example can be 3 to 15 minutes, preferably 9 minutes.

In the further embodiment of the application, controller 201 can be configured to determining that wind wheel is intermittent anti- After turning operation completion, control wind wheel 3 persistently rotates a scheduled duration.The range of the scheduled duration for example can be 1 to 5 point Clock, preferably 3 minutes.After interval sex reversal before carries out " immersion " to wind wheel 3, persistently rotation can be centrifuged wind wheel 3 The grease stain being attached on wind wheel 3 or spot are thrown away under the action of power, thus, it is possible to preferably clean wind wheel 3.In an example In, the revolving speed of duration rotation can be faster than the revolving speed of interval sex reversal, and revolving speed can provide bigger centrifugal force fastly.But It is faster than the revolving speed of interval sex reversal that one of ordinary skill in the art are appreciated that the revolving speed of duration rotation is needed not necessarily be limited to, In other examples, the revolving speed of duration rotation can be less than or can be equal to the revolving speed of interval sex reversal.

In presently filed embodiment, duration rotation may include various modes.In the first mode, duration Rotation can invert for duration.In second of mode, duration rotation can rotate forward for duration.In the third mode In, duration rotation can be first to continue sex reversal for a period of time, then duration rotates forward a period of time.In the 4th kind of mode, Duration rotation can rotate forward a period of time for first duration, then persistently sex reversal is for a period of time.Due to the blade knot of wind wheel 3 Structure, so that the resistance that the resistance that wind wheel 3 encounters cleaning solution in reversion encounters when being less than and rotating forward, thus in the embodiment party of the application In formula, the revolving speed of lasting sex reversal can be set as higher than the revolving speed that duration rotates forward.

In presently filed embodiment, controller 201 be can be configured in control 3 interval sex reversal of wind wheel up in advance After timing is long, cleaning solution is discharged from spiral case 2.Scheduled duration may be set according to actual conditions.For example, can be according to clear The effect washed sets scheduled duration.For another example cleaning effect and power consumption can be taken into account to set scheduled duration.Cleaning solution From spiral case 2 be discharged mode can there are many.In one example, pump can be used by the cleaning solution after the completion of cleaning from spiral case It is extracted out in 2.In another example, cleaning solution can be discharged by water-returning control valve 44.In the process of cleaning, water-returning control valve 44 remain turned-off.When needing that cleaning solution is discharged, control water-returning control valve 44 is opened so that cleaning solution to be discharged from spiral case 2.Row Cleaning solution out can be contained with container (such as water box or water holding box), or connection sewage pipe is exhausted directly to sewer.Separately Outside, in the embodiment of the application, when cleaning solution is discharged from spiral case 2, wind wheel 3 is no longer rotated.That is, control Device 201 processed can be configured to the control motor 214 during cleaning solution is discharged and be maintained at off-position.

In the additional or alternative embodiments of the application, controller 201 can be configured to arrange by cleaning solution Out after spiral case 2, control wind wheel 3 is rotated.In cleaning solution after being discharged in spiral case 2, the blade and spiral case 2 of wind wheel 3 still can It is stained with a small amount of cleaning solution, and control wind wheel 3 is continued to rotate and the cleaning solution being attached on wind wheel 3 can be both got rid of by centrifugal force From can also suck air and generate moving air in spiral case 2, accelerate air-drying for remaining cleaning solution.In the reality of the application It applies in mode, controller 201 can be configured to after cleaning solution is discharged, and can control wind wheel 3 and rotates forward a scheduled duration (for example, 1 minute, 2 minutes etc.).Pre- timing is rotated forward in maximum gear (i.e. maximum setting speed) for example, can control wind wheel 3 It is long.In the another embodiment of the application, controller 201 can be configured to control after cleaning solution is discharged Wind wheel 3 processed inverts a scheduled duration (for example, 1 minute, 2 minutes etc.).For example, it is (i.e. maximum in maximum gear to can control wind wheel 3 Setting speed) reversion scheduled duration.

Presently filed embodiment additionally provides computer program product, including program instruction, which is controlled Device enables the controller to realize any cleaning method for range hood in above embodiment when executing.

Presently filed embodiment additionally provides storage medium, is stored thereon with computer-readable instruction, which can It enables the controller to execute when reading instruction is executed by a controller any described for range hood in above embodiment Cleaning method.

The optional embodiment of the application example is described in detail in conjunction with attached drawing above, still, the application embodiment is not The detail being limited in above embodiment can be to the application reality in the range of the technology design of the application embodiment The technical solution for applying mode carries out a variety of simple variants, these simple variants belong to the protection scope of the application embodiment.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the application embodiment To various combinations of possible ways, no further explanation will be given.

It will be appreciated by those skilled in the art that realizing that all or part of the steps in above embodiment method is can to lead to Program is crossed to instruct relevant hardware and complete, which is stored in a storage medium, including some instructions use so that One (can be single-chip microcontroller, chip etc.) or processor (processor) execute each embodiment the method for the application All or part of the steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey The medium of sequence code.

In addition, any combination can also be carried out between a variety of different embodiments of the application embodiment, as long as its Without prejudice to the thought of the application embodiment, the application embodiment disclosure of that equally should be considered as.

Claims (16)

1. a kind of cleaning method for range hood, the range hood include spiral case, the wind wheel being mounted in the spiral case with And the motor for driving wind wheel rotation, which is characterized in that the cleaning method includes:

Cleaning solution is injected into the spiral case；

The cleaning solution is detected in the liquid level of the spiral case bottom；

Judge whether the liquid level reaches predetermined fluid level；

In the case where judging that the liquid level reaches the predetermined fluid level, the wind wheel interval sex reversal is controlled.

2. cleaning method according to claim 1, which is characterized in that the control wind wheel interval sex reversal includes:

To the alternately inverted energization of the motor and power-off；The time being wherein powered is period first time, and time of power-off is the Two time cycles.

3. cleaning method according to claim 2, which is characterized in that the range in period first time is 1 second to 15 Second, preferably 3 seconds；The range of the second time period is 3 seconds to 15 seconds, preferably 5 seconds.

4. cleaning method according to claim 1, which is characterized in that the range of the setting speed of the motor reversal is 100 revs/min to 900 revs/min, preferably 300 revs/min.

5. cleaning method according to claim 1, which is characterized in that further include:

In the wind wheel interval sex reversal up to after the first scheduled duration and/or pre- fixing turn, controls the wind wheel and persistently rotate forward Or persistently invert the second scheduled duration.

6. cleaning method according to claim 1, which is characterized in that persistently rotate forward in the control wind wheel or persistently invert The cleaning solution is discharged from the spiral case after second scheduled duration.

7. cleaning method according to claim 6, which is characterized in that further include:

After the spiral case is discharged in the cleaning solution, the wind wheel is controlled in maximum bit reversal scheduled duration.

8. a kind of cleaning device for range hood, the range hood include spiral case, the wind wheel being mounted in spiral case and For driving the motor of wind wheel rotation, which is characterized in that the cleaning device includes:

Jet pipe is cleaned, for injecting cleaning solution into the spiral case；

One end of feed pipe, the feed pipe is connected to the cleaning jet pipe, and the other end can connect cleaning solution source；

Water supply control valve is arranged at the feed pipe, for controlling the on-off of the feed pipe；

Return pipe, one end of the return pipe are connected to the spiral case bottom, for the cleaning solution to be discharged；

Water-returning control valve is arranged at the return pipe, for controlling the on-off of the return pipe；

Liquid level detection unit, for detecting the cleaning solution in the liquid level of the spiral case bottom；And

Controller, the controller are configured to:

In the case where starting cleaning operation, controls the water supply control valve and open, to inject cleaning solution into the spiral case；

Judge whether the liquid level reaches predetermined fluid level；And

In the case where judging that the liquid level reaches the predetermined fluid level, the wind wheel interval sex reversal is controlled.

9. cleaning device according to claim 8, which is characterized in that the controller is configured to control between the wind wheel Sex reversal of having a rest includes:

To the alternately inverted energization of the motor and power-off, wherein the time being powered is period first time, the time of power-off is the Two time cycles.

10. cleaning device according to claim 9, which is characterized in that the range in period first time is 1 second to 15 Second, preferably 3 seconds；The range of the second time period is 3 seconds to 15 seconds, preferably 5 seconds.

11. cleaning device according to claim 8, which is characterized in that the range of the setting speed of the motor reversal is 100 revs/min to 900 revs/min, preferably 300 revs/min.

12. cleaning device according to claim 8, which is characterized in that the controller is further configured to:

In the wind wheel interval sex reversal up to after the first scheduled duration and/or pre- fixing turn, controls the wind wheel and persistently rotate forward Or persistently invert the second scheduled duration.

13. cleaning device according to claim 8, which is characterized in that the controller is further configured to:

The water-returning control valve is controlled after controlling the wind wheel and persistently rotating forward or persistently invert the second scheduled duration to open, with The cleaning solution is discharged from the spiral case.

14. cleaning device according to claim 13, which is characterized in that the controller is further configured to will be described clear Clean liquid is discharged after the spiral case, controls the wind wheel in maximum bit reversal scheduled duration.

15. a kind of range hood, including spiral case, the wind wheel being mounted in the spiral case and for driving the wind wheel rotation Motor, which is characterized in that the range hood further includes according to any one of claim 8 to 14 for fume-exhausting The cleaning device of machine.

16. a kind of storage medium, is stored thereon with computer-readable instruction, which is characterized in that the computer-readable instruction is located Reason device enables the processor to execute as claimed in any of claims 1 to 7 for range hood when executing Cleaning method.