Range hood cleaning control method and device and range hood

Abstract

The invention relates to an extractor hood cleaning control method and device and an extractor hood. After historical use data of the extractor hood are obtained, in response to a shutdown instruction, the historical use data are compared with a preset cleaning starting condition, and under the condition that the historical use data meet the preset cleaning starting condition, the extractor hood is controlled to start cleaning. Therefore, by recording the historical use data of the range hood, the use habit of the user can be identified based on the historical use data, whether the historical use data meet the preset cleaning starting condition or not is judged after shutdown, and the range hood is controlled to start cleaning under the condition that the historical use data meet the preset cleaning starting condition. The range hood automatically starts the cleaning program after being shut down, intelligent and efficient cleaning without user intervention is achieved, the operation burden of a user and adverse effects caused by false triggering are reduced, and the use reliability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of range hood, and in particular to a range hood cleaning control method and device and a range hood. BACKGROUND

[0002] A range hood is a kitchen appliance for purifying the kitchen environment. It is installed above or beside the kitchen stove and can quickly remove the waste of the stove combustion and the oil fume harmful to human body generated during the cooking process, and discharge it to the outdoor, while condensing and collecting the oil fume to reduce pollution and purify the air.

[0003] At present, most range hoods will enter a "delayed shutdown" state after the user turns off the power, and continue to work for a period of time to discharge residual oil fume. However, in this process, the oil stains on the impeller are not effectively cleaned, and long-term accumulation will affect the performance and service life of the range hood. Although some range hoods have a self-cleaning function, they usually need to be manually started by the user, which not only increases the user's operation burden, but also may cause unnecessary energy consumption and mechanical wear due to accidental triggering. Therefore, the conventional range hood self-cleaning method has low use reliability. SUMMARY

[0004] Therefore, it is necessary to provide a range hood cleaning control method, device and range hood capable of improving use reliability in view of the technical problem of low use reliability of the conventional range hood self-cleaning method.

[0005] In a first aspect, the present application provides a range hood cleaning control method, which comprises:

[0006] obtaining historical use data of a range hood;

[0007] in response to a shutdown instruction, comparing the historical use data with a preset cleaning start condition;

[0008] in the case where the historical use data meets the preset cleaning start condition, controlling the range hood to start cleaning.

[0009] In one of the embodiments, the controlling the range hood to start cleaning in the case where the historical use data meets the preset cleaning start condition comprises:

[0010] in the case where the historical use data meets the preset cleaning start condition, controlling the range hood to perform multi-stage cleaning.

[0011] In one of the embodiments, the multi-stage cleaning comprises a pre-cleaning stage, a main cleaning stage and a post-cleaning stage performed in sequence, and the controlling the range hood to perform multi-stage cleaning comprises:

[0012] in the pre-cleaning stage, controlling the motor of the range hood to operate at a first rotating speed;

[0013] in the main cleaning stage, controlling the motor of the range hood to operate at a second rotating speed; the first rotating speed is less than the second rotating speed;

[0014] in the post-cleaning stage, controlling the motor of the range hood to operate at a third rotating speed; the third rotating speed is less than the second rotating speed.

[0015] in one of the embodiments, the range hood further comprises an oil stain cleaning device, and the method further comprises:

[0016] in the pre-cleaning stage, controlling the oil stain cleaning device to operate at a first power;

[0017] in the main cleaning stage, controlling the oil stain cleaning device to operate at a second power; the first power is less than the second power.

[0018] in one of the embodiments, the pre-cleaning stage comprises a plurality of sequentially executed pre-cleaning sub-stages, and the post-cleaning stage comprises a plurality of sequentially executed post-cleaning sub-stages, and the method further comprises:

[0019] in the pre-cleaning stage, the rotating speed of the motor of the range hood in a later pre-cleaning sub-stage is greater than that in a former pre-cleaning sub-stage;

[0020] in the post-cleaning stage, the rotating speed of the motor of the range hood in a later post-cleaning sub-stage is less than that in a former post-cleaning sub-stage.

[0021] in one of the embodiments, the historical usage data comprises historical cleaning data and historical working data, and after the range hood is controlled to start cleaning under the condition that the historical usage data meets the preset cleaning starting condition, the method further comprises:

[0022] adjusting the cleaning parameters of the range hood according to the historical cleaning data and the historical working data.

[0023] in one of the embodiments, after the range hood is controlled to start cleaning under the condition that the historical usage data meets the preset cleaning starting condition, the method further comprises:

[0024] obtaining operating data of the motor of the range hood;

[0025] adjusting the cleaning parameters of the range hood according to the operating data of the motor, the historical cleaning data and the historical working data.

[0026] in one of the embodiments, the method further comprises:

[0027] acquire environment data of an environment where the range hood is located;

[0028] start cleaning of the range hood in a case where the environment data meets the preset cleaning start condition.

[0029] In a second aspect, the present application further provides a range hood cleaning control device, and the method comprises:

[0030] a data acquisition module configured to acquire historical use data of the range hood;

[0031] a comparison module configured to compare the historical use data with a preset cleaning start condition in response to a shutdown instruction;

[0032] a cleaning control module configured to start cleaning of the range hood in a case where the historical use data meets the preset cleaning start condition.

[0033] In a third aspect, the present application provides a range hood comprising a range hood body and a controller, wherein the controller is configured to implement the steps of the method described above.

[0034] In one of the embodiments, the range hood further comprises an oil stain cleaning device connected to the controller.

[0035] In one of the embodiments, the range hood further comprises an environment detection device connected to the controller.

[0036] In one of the embodiments, the range hood further comprises an interaction device connected to the controller.

[0037] The range hood cleaning control method, device and range hood described above acquire historical use data of the range hood, compare the historical use data with a preset cleaning start condition in response to a shutdown instruction, and start cleaning of the range hood in a case where the historical use data meets the preset cleaning start condition. Thus, by recording the historical use data of the range hood, the use habits of the user can be identified based on the historical use data. After shutdown, it is determined whether the historical use data meets the preset cleaning start condition. In a case where the historical use data meets the preset cleaning start condition, the range hood is controlled to start cleaning, so that the range hood automatically starts a cleaning program after shutdown, and intelligent and efficient cleaning without user intervention is achieved, which reduces the operation burden of the user and the adverse effects caused by accidental triggering, and has high use reliability. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other related drawings can also be obtained from these drawings without creative effort.

[0039] Figure 1 A structural schematic diagram of a range hood in an embodiment;

[0040] Figure 2 A flowchart of a range hood cleaning control method in an embodiment;

[0041] Figure 3 A flowchart of a range hood cleaning control method in another embodiment;

[0042] Figure 4 A flowchart of steps of controlling a range hood to perform multi-stage cleaning in an embodiment;

[0043] Figure 5 A flowchart of steps of controlling a range hood to perform multi-stage cleaning in another embodiment;

[0044] Figure 6 A flowchart of steps of controlling a range hood to perform multi-stage cleaning in yet another embodiment;

[0045] Figure 7 A flowchart of a range hood cleaning control method in yet another embodiment;

[0046] Figure 8 A structural block diagram of a range hood cleaning control device in an embodiment;

[0047] Figure 9 A detailed flowchart of a range hood cleaning control method in an embodiment. DETAILED DESCRIPTION

[0048] In order to make the objects, technical solutions and advantages of the present application clearer, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0049] It should be noted that the terms “include” and “have” and any variations thereof used in the present application are intended to cover the non-exclusive inclusion. The term “multiple” used in the present application refers to two and more than two. The term “and / or” used in the present application refers to one of the solutions, or any combination of multiple solutions.

[0050] The oil fume extractor cleaning control method provided by the embodiments of the present application is used for controlling the oil fume extractor, and can be specifically used for controlling the self-cleaning process of the oil fume extractor. Figure 1 As shown in the figure, the oil fume extractor includes an extractor body and a controller, the controller is arranged in the extractor body and can be connected with some devices in the extractor body, and is used for controlling the working state of the extractor body. The extractor body includes a fan system, an oil filtering and collecting system and a shell structure system.

[0051] Among them, the fan system is the core functional module of air power generation, which is used for generating negative pressure to suck air flow and discharge exhaust gas. The oil filtering and collecting system is used for separating and collecting oil in the oil fume mixture, which usually includes filter screen (such as mesh, plate and labyrinth structure) and oil cup. The shell structure system is used for containing and supporting various functional components and forming air flow channel, which usually includes smoke collecting hood, decorative panel, air deflector, etc., which forms smoke collecting cavity and air duct.

[0052] Further, the fan system usually includes motor, impeller and volute, the motor is the power source, the impeller is fixedly installed on the output shaft of the motor and rotates with the motor shaft, which is used for converting the mechanical energy of the motor into kinetic energy and pressure energy of air. The volute is a kind of spiral cavity structure with gradually expanding linear shape, which is used for containing the impeller and effectively converting the kinetic energy of high-speed airflow thrown out by the impeller into static pressure energy to overcome the resistance of exhaust gas passage.

[0053] The oil fume extractor cleaning control method can be executed by the controller in the oil fume extractor, or by the terminal or server in communication connection with the oil fume extractor. Among them, the terminal can be but not limited to various personal computers, notebook computers, smart phones, tablet computers, unmanned aerial vehicles, low-altitude aircraft, Internet of Things devices and portable wearable devices, etc. The server can be a stand-alone physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0054] In an exemplary embodiment, as shown in the figure, an oil fume extractor cleaning control method is provided, and the method is executed by the controller of the oil fume extractor. Figure 2 As shown in the figure, an oil fume extractor cleaning control method is provided, and the method is executed by the controller of the oil fume extractor. Figure 1 The method includes the following steps 202 to 206. Among them:

[0055] Step 202, obtaining historical use data of the oil fume extractor.

[0056] The historical use data refers to a multidimensional data set recorded and stored by the range hood and reflecting the historical use of the range hood. The historical use data can include the sum of accumulated data in a previous period of time, or the use data closest to the current use data. The period of time can be the time between a certain node in the past and the present, or a certain period of time in the past, which is not limited herein.

[0057] The type of historical use data is not unique. For example, the historical use data includes time series data, which includes the on-off time stamp of each operation of the range hood, the total cooking time, the running time and / or switching frequency of each gear (such as low, medium, high, and stir-frying) in each use, etc.

[0058] In addition, the historical use data can also include load data, which can be an index data calculated by obtaining the fan speed and running time. Generally, the larger the load data, the greater the working load of the range hood. For example, the load data calculated by running the high-frequency gear for 1 minute is greater than the load data of running the low-frequency gear for 1 minute.

[0059] It can be understood that the historical use data of the range hood can only include time series data, or only include load data, or both time series data and load data. Extensibility, in other embodiments, the historical use data can also include other data in addition to time series data and load data, which is not limited herein.

[0060] The controller can identify the use frequency and cooking habits of the user for the range hood by analyzing the historical use data, and provide a basis for subsequent cleaning strategies.

[0061] Step 204, in response to the shutdown instruction, comparing the historical use data with the preset cleaning start condition.

[0062] The shutdown instruction can be an instruction sent by the user through the interactive device of the range hood. The interactive device can be a touch screen, a key or a voice device, etc.

[0063] The preset cleaning start condition can be a set of preset logical judgment rules, the judgment basis of which is based on the historical use data, the type of which corresponds to the type of the historical use data, and is used to automatically determine whether cleaning is needed at present. Alternatively, the preset cleaning start condition can also be a condition defined by the user.

[0064] The preset cleaning starting condition can be a single condition or a composite condition. For example, when the preset cleaning starting condition is a single condition, it can be that the cumulative running time in a specified time period is greater than or equal to a preset use time threshold. When the preset cleaning starting condition is a composite condition, it can be that the cumulative running time in a specified time period is greater than or equal to a preset use time threshold, and the use frequency in the specified time period is greater than or equal to a preset use frequency threshold. When the preset cleaning starting condition is a single condition, the judgment process is simple and fast. When the preset cleaning starting condition is a composite condition, the judgment content is more comprehensive.

[0065] After receiving the shutdown instruction, the controller indicates that the user has completed the use of the range hood this time. In this case, the controller does not immediately shut down, but starts a decision-making process to compare the historical use data with the preset cleaning starting condition to determine whether the current state of the range hood needs cleaning.

[0066] In step 206, the range hood is controlled to start cleaning when the historical use data meets the preset cleaning starting condition.

[0067] When the historical use data meets the preset cleaning starting condition, it indicates that the historical use data has reached the preset cleaning trigger threshold, and the range hood needs cleaning. In this case, the controller controls the range hood to start cleaning to reduce the oil stains in the range hood.

[0068] The specific steps of controlling the range hood to clean can be determined according to the structure of the range hood. For example, if the range hood includes an oil stain cleaning device, the controller can control the oil stain cleaning device to work to clean the oil stains. Alternatively, the controller can also control the motor to rotate, for example, adjust the rotation speed or change the rotation direction, to drive the impeller to move and remove the oil stains on the impeller during the movement. Before controlling the range hood to start cleaning, the controller can also control the interactive device to issue a prompt information that cleaning is about to start, so that the user can better understand the working state of the range hood.

[0069] The duration of the cleaning program can be determined according to the preset fixed cleaning time, or the cleaning effect can be monitored and the cleaning can be ended when the cleaning effect meets the requirements. Subsequently, the controller controls all components to stop working, and the entire range hood enters a truly low-power standby or complete shutdown state.

[0070] It can be understood that in another embodiment, when the historical use data does not meet the preset cleaning starting condition, it indicates that the range hood has not reached the degree that needs cleaning, and then the controller controls the range hood to perform a normal complete shutdown process, all systems are powered off, and the process ends.

[0071] In the above method for controlling cleaning of the range hood, after the historical use data of the range hood is acquired, the historical use data is compared with the preset cleaning starting condition in response to the shutdown instruction, and the range hood is controlled to start cleaning in the case where the historical use data meets the preset cleaning starting condition. Thus, by recording the historical use data of the range hood, the use habit of the user can be identified based on the historical use data, and it is determined whether the historical use data meets the preset cleaning starting condition after the range hood is shut down, and the range hood is controlled to start cleaning in the case where the historical use data meets the preset cleaning starting condition, so that the range hood automatically starts the cleaning program after being shut down, and intelligent and efficient cleaning without user intervention is achieved, the operation burden of the user is reduced, and the adverse effects caused by accidental triggering are reduced, and the use reliability is high.

[0072] In one exemplary embodiment, as shown in FIG. 6, step 206 includes step 306: in the case where the historical use data meets the preset cleaning starting condition, the range hood is controlled to perform multi-stage cleaning. Figure 3

[0073] In one exemplary embodiment, as shown in FIG. 6, step 206 includes step 306: in the case where the historical use data meets the preset cleaning starting condition, the range hood is controlled to perform multi-stage cleaning.

[0074] When the controller determines that the historical use data meets the preset cleaning starting condition, the controller calls the stored multi-stage cleaning program. The program includes a series of instruction sets executed in sequence, and each stage instruction set specifies parameters such as the duration of the stage and the working state of the motor. The controller executes these instructions in sequence to drive the hardware to complete the entire cleaning process.

[0075] Exemplarily, the multi-stage includes a pre-cleaning stage and a main cleaning stage, and the controller controls the motor to rotate at a lower speed in the pre-cleaning stage than in the main cleaning stage. In the pre-cleaning stage, the controller controls the motor to rotate at a lower speed to preheat the device and prepare for subsequent deep cleaning. In the main cleaning stage, the controller controls the motor to rotate at a higher speed to generate a larger centrifugal force to better strip the oil stains on the impeller and improve the cleaning effect. It can be understood that in other embodiments, the multi-stage can also include other stages, which are not limited herein.

[0076] In this embodiment, in the case where the historical use data meets the preset cleaning starting condition, the range hood is controlled to perform multi-stage cleaning. By using multi-stage cleaning, appropriate processing methods can be adopted for different states of oil stains, and the problems of energy waste and incomplete cleaning can be avoided, and the energy consumption and noise can be optimized while ensuring the cleaning effect.

[0077] In one exemplary embodiment, the multi-stage includes a pre-cleaning stage, a main cleaning stage and a post-cleaning stage executed in sequence, as shown in FIG. 6. Figure 4 ​As shown, in step 306, the control controls the range hood to perform the steps of the multi-stage cleaning, including steps 402 to 406. Among them:

[0078] In step 402, in the pre-cleaning stage, the controller controls the motor of the range hood to run at a first speed.

[0079] In step 404, in the main cleaning stage, the controller controls the motor of the range hood to run at a second speed.

[0080] In step 406, in the post-cleaning stage, the controller controls the motor of the range hood to run at a third speed.

[0081] Among them, the first speed is less than the second speed, and the third speed is less than the second speed.

[0082] It can be understood that the first speed is a low speed, at which the wind volume generated by the rotation of the impeller is sufficient to drive the airflow, but the noise and energy consumption are low, which is suitable for preheating and softening of oil stains. The second speed is a high speed, at which the rotation of the impeller can generate strong centrifugal force to effectively strip the softened oil stains. The third speed can be greater than or equal to the first speed, and correspondingly, the third speed can be a low speed or a medium speed. At the third speed, the wind volume generated by the rotation of the impeller can effectively exhaust the air while reducing the system energy consumption and noise, which is suitable for the exhaust of residual oil.

[0083] The specific values of the first speed, the second speed and the third speed are not limited. Exemplarily, the first speed can be a speed in the range of 300-600 RPM, including the end point values 300 RPM and 600 RPM. The second speed can be a speed in the range of 1000-1500 RPM, including the end point values 1000 RPM and 1500 RPM. The third speed can be a speed in the range of 500-800 RPM, including the end point values 500 RPM and 800 RPM.

[0084] In the pre-cleaning stage, the controller controls the motor to run at the first speed, and the main purpose of this stage is to preheat the internal components (especially the impeller) and to use the airflow to preliminarily soften the oil stains on the surface.

[0085] In the main cleaning stage, the controller increases the motor speed to the second speed, and the strong centrifugal force generated by the high-speed rotation strips the softened oil stains from the impeller and the volute wall.

[0086] In the post-cleaning stage, the controller reduces the motor speed to the third speed, thoroughly sweeps and discharges the stripped liquid oil stains to the oil cup, and gradually cools the system.

[0087] It can be understood that the duration of the pre-cleaning stage, the main cleaning stage and the post-cleaning stage is not fixed and can be adjusted according to actual conditions. For example, when the historical use data ensures that the amount of oil stains in the range hood is large, the duration of the main cleaning stage can be extended, and the duration of the pre-cleaning stage and the post-cleaning stage can also be extended. Generally, the duration of the pre-cleaning stage is less than the duration of the main cleaning stage to ensure the cleaning effect. For example, the duration of the pre-cleaning stage is about 2 minutes, and the duration of the main cleaning stage is about 3-5 minutes. The duration of the post-cleaning stage can be set according to actual needs, for example, it can be 4-6 minutes.

[0088] In this embodiment, the multi-stage includes a pre-cleaning stage, a main cleaning stage and a post-cleaning stage executed in sequence. In the pre-cleaning stage, the motor of the range hood is controlled to operate at a first speed, in the main cleaning stage, the motor of the range hood is controlled to operate at a second speed, and in the post-cleaning stage, the motor of the range hood is controlled to operate at a third speed. Through the three-stage change of the speed, the physical requirements of different stages in the cleaning process are accurately matched, the energy efficiency is improved, and the overall noise of the cleaning process is reduced.

[0089] In an exemplary embodiment, the range hood further includes an oil stain cleaning device. The oil stain cleaning device refers to a device for assisting in cleaning oil stains. The type of oil stain cleaning device is not unique. For example, the oil stain cleaning device can be a heater, which can be arranged in the volute and can heat the oil stains to reduce the degree of adhesion of the oil stains. Alternatively, the oil stain cleaning device can be a steam generator, which can generate steam to soften and peel off the oil stains. Alternatively, the oil stain cleaning device can be an ultrasonic generator, which can generate ultrasonic waves to vibrate the volute and / or impeller to help the oil stains peel off. It can be understood that in other embodiments, the oil stain cleaning device can also be of other types, which are not limited herein.

[0090] On the basis of the structure that the range hood further includes an oil stain cleaning device, as shown in Figure 5 Step 306, controlling the range hood to perform multi-stage cleaning includes steps 502 to 504. Among them:

[0091] Step 502, in the pre-cleaning stage, controlling the oil stain cleaning device to operate at a first power.

[0092] Step 504, in the main cleaning stage, controlling the oil stain cleaning device to operate at a second power.

[0093] Among them, the first power is less than the second power. The power of the oil stain cleaning device is related to the cleaning strength of the oil stain cleaning device. Generally, the greater the power, the greater the cleaning strength of the oil stain cleaning device on the oil stains, and the better the cleaning effect.

[0094] In the pre-cleaning stage, the controller controls the oil stain cleaning device to run at a first power while controlling the motor to run at a first rotating speed, preliminarily processing the oil stains, for example, generating mild heat to heat the oil stains and reduce their viscosity.

[0095] In the main cleaning stage, the controller controls the oil stain cleaning device to switch to a second power greater than the first power while controlling the motor to run at a second rotating speed, increasing the cleaning strength, for example, generating high temperature or a large amount of steam to soften and dissolve stubborn oil stains to a greater extent, and cooperating with the high-speed rotating impeller to achieve powerful cleaning.

[0096] Extensibly, in the post-cleaning stage, the controller can control the oil stain cleaning device to stop working and only control the motor of the range hood to run at a third rotating speed to rely on the motor to discharge and cool.

[0097] In the embodiment, the range hood further includes an oil stain cleaning device, and the method further includes: in the pre-cleaning stage, controlling the oil stain cleaning device to run at a first power, and in the main cleaning stage, controlling the oil stain cleaning device to run at a second power, the first power being less than the second power. Through the coordinated control of the motor rotating speed and the oil stain cleaning device power, the auxiliary cleaning and the mechanical force stripping are coordinated, the cleaning efficiency and effect are improved, and the cleaning scene of heavy oil stains can be applied.

[0098] In an exemplary embodiment, the pre-cleaning stage includes a plurality of sequentially executed pre-cleaning sub-stages, and the post-cleaning stage includes a plurality of sequentially executed post-cleaning sub-stages. As shown in Figure 6 Step 306, the step of controlling the range hood to perform multi-stage cleaning includes steps 602 to 604. Among them:

[0099] Step 602, in the pre-cleaning stage, the rotating speed of the motor of the range hood in the subsequent pre-cleaning sub-stage is greater than that in the previous pre-cleaning sub-stage.

[0100] Step 604, in the post-cleaning stage, the rotating speed of the motor of the range hood in the subsequent post-cleaning sub-stage is less than that in the previous post-cleaning sub-stage.

[0101] Further subdividing the pre-cleaning stage into a plurality of sequentially executed pre-cleaning sub-stages and further subdividing the post-cleaning stage into a plurality of sequentially executed post-cleaning sub-stages can further refine the working process of the pre-cleaning stage and the post-cleaning stage.

[0102] In each of the sequentially executed pre-cleaning sub-stages, the controller gradually increases the motor speed. Taking a pre-cleaning sub-stage comprising a first pre-cleaning sub-stage and a second pre-cleaning sub-stage as an example, in the first pre-cleaning sub-stage, the controller first controls the motor to run at the lowest speed (e.g., 300 RPM) for 1 minute, allowing the system to begin slow preheating. Then, in the second pre-cleaning sub-stage, the controller increases the motor speed to a higher pre-cleaning speed (e.g., 600 RPM) and runs it for another minute. This gradual increase in motor speed reduces start-up shock and ensures more uniform preheating.

[0103] In each of the sequentially executed post-cleaning sub-stages, the controller gradually reduces the motor speed. Taking a post-cleaning sub-stage comprising a first and a second post-cleaning sub-stage as an example, after the main cleaning stage, the controller initiates the first post-cleaning sub-stage, reducing the motor speed from high to medium (e.g., 800 RPM) for 2 minutes to initially remove residual grease. Then, the controller initiates the second post-cleaning sub-stage, further reducing the motor speed to an even lower level (e.g., 500 RPM) for 3 minutes. This gradual reduction in speed allows for more grease removal and also helps reduce operating noise.

[0104] In this embodiment, the pre-cleaning stage includes multiple pre-cleaning sub-stages executed sequentially, and the post-cleaning stage includes multiple post-cleaning sub-stages executed sequentially. In the pre-cleaning stage, the motor speed of the range hood is controlled to be higher in each subsequent pre-cleaning sub-stage than in the previous one; conversely, in the post-cleaning stage, the motor speed is controlled to be lower in each subsequent post-cleaning sub-stage than in the previous one. By setting sub-stages with gradually changing speeds within the two main stages, the transition of the cleaning process is made smoother, reducing mechanical and thermal stress impacts and helping to extend the service life of the range hood.

[0105] In one exemplary embodiment, such as Figure 7 As shown, historical usage data includes historical cleaning data and historical working data. Following step 206, the range hood cleaning control method further includes step 706: adjusting the range hood's cleaning parameters based on the historical cleaning data and historical working data.

[0106] Historical cleaning data includes cleaning-related data, such as historical cleaning time, number of cleanings, and historical cleaning frequency. Historical work data includes data related to the range hood's operation records, such as time-series data and load data.

[0107] The cleaning parameters of a range hood refer to the adjustable parameters that affect the cleaning effect during the cleaning program. For example, cleaning parameters may include cleaning time, motor speed, or the working status of the grease cleaning device.

[0108] After controlling the range hood to start cleaning, the controller accesses the historical cleaning data and the historical working data. After analyzing the data, the controller adjusts the cleaning parameters of the range hood according to the historical cleaning data and the historical working data.

[0109] For example, if the historical cleaning data indicates that the interval between two cleanings of the range hood is one week, and the historical working data indicates that the working time of the range hood is short and the gear is small each time, the controller can analyze that the user's cooking habit is light oil. Then the controller can control to reduce the cleaning parameters, for example, reduce the duration of the cleaning phase from the default 5 minutes to 4 minutes, to save energy consumption.

[0110] In this embodiment, the cleaning parameters of the range hood are adjusted according to the historical cleaning data and the historical working data, which can realize adaptive adjustment of the cleaning parameters, so that the cleaning strategy of the range hood has a preliminary adaptive ability, can dynamically optimize its behavior according to the actual use and cleaning effect feedback, and better balance the cleaning effect and energy consumption.

[0111] In an exemplary embodiment, after step 206, the range hood cleaning control method further comprises the step of: obtaining running data of the motor of the range hood; adjusting the cleaning parameters of the range hood according to the running data of the motor, the historical cleaning data and the historical working data.

[0112] The running data of the motor can represent the running state of the motor. Generally, the running data of the motor includes motor working current, real-time speed, temperature, etc. It can be understood that the controller obtains the running data of the motor of the range hood when the range hood is in the cleaning process.

[0113] The running data of the motor can also represent the cleaning effect. For example, since the oil stains are mainly concentrated on the impeller, the more oil stains, the heavier the impeller, the lower the speed, and the higher the motor current. After cleaning, the weight of the impeller is reduced, the speed is increased, and the motor current is reduced. Therefore, the increase of the motor speed and the decrease of the motor current represent better cleaning effect.

[0114] After obtaining the running data of the motor of the range hood, the controller adjusts the cleaning parameters of the range hood according to the running data of the motor, the historical cleaning data and the historical working data, to further optimize the cleaning strategy.

[0115] For example, during the cleaning phase of the range hood, the controller monitors the running data of the motor in real time. If it is found that the current decreases rapidly and tends to be stable in a short time, it means that the oil stains are stripped quickly, and the system can judge that the pollution degree is lighter and the cleaning effect is better. The system combines this real-time running data with the historical data, and may make a decision to adjust the main cleaning phase time of the next cleaning from 5 minutes to 4 minutes, thereby saving energy.

[0116] In this embodiment, after obtaining the operation data of the motor of the range hood, the cleaning parameters of the range hood are adjusted according to the operation data of the motor, the historical cleaning data and the historical working data. This embodiment further increases the real-time data feedback, thereby combining the post-analysis (historical use data) with the in-process monitoring (operation data of the motor) to provide more accurate and timely decision basis for the adaptive adjustment of the cleaning parameters, and greatly improves the accuracy and response speed of the optimization system.

[0117] In an exemplary embodiment, the range hood cleaning control method further comprises the steps of: obtaining environmental data of an environment in which the range hood is located; and controlling the range hood to start cleaning when the environmental data meets a preset cleaning starting condition.

[0118] The environmental data can be detected by an environmental detection device and then sent to the controller. The environmental detection device can be arranged on the range hood or arranged elsewhere and can be in communication connection with the controller of the range hood. The type of the environmental detection device is not unique, for example, it can be a temperature and humidity sensor which can detect the temperature data and humidity data of the environment in which the range hood is located. Correspondingly, the environmental data includes the temperature data and humidity data.

[0119] The preset cleaning starting condition further includes a condition corresponding to the type of the environmental data. For example, the preset cleaning starting condition includes a temperature drop > 5℃ and humidity data > 70%.

[0120] When the environmental data meets the preset cleaning starting condition, the environmental data at this time is prone to cause water vapor condensation, and the water vapor mixed with oil is more likely to solidify and adhere. Therefore, in this case, the controller controls the range hood to start cleaning to prevent the oil stains from solidifying rapidly.

[0121] In this embodiment, the environmental data of the environment in which the range hood is located is obtained, and the range hood is controlled to start cleaning when the environmental data meets the preset cleaning starting condition. The environmental factors are taken into account as the basis for controlling cleaning, making the cleaning triggering mechanism more forward-looking and intelligent, which can actively clean before the oil stains become stubborn, reducing the difficulty of long-term cleaning and being conducive to maintaining the better performance of the range hood.

[0122] It should be understood that although each step in the flowchart involved in each embodiment as described above is shown in sequence according to the direction of the arrow, these steps are not necessarily executed in the order indicated by the arrow. Unless otherwise specified herein, there is no strict order limitation for the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowchart involved in each embodiment as described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least some of the other steps or steps or stages in other steps. It can be understood that the steps in different embodiments can be freely combined as needed, and various non-contradictory schemes formed by the combination are within the scope of protection of the present application.

[0123] Based on the same inventive concept, the embodiments of the present application also provide an extractor cleaning control device for implementing the above-mentioned extractor cleaning control method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more extractor cleaning control device embodiments provided below can refer to the limitations of the extractor cleaning control method in the above text, which will not be repeated here.

[0124] In one exemplary embodiment, as shown in Figure 8 An extractor cleaning control device is provided, comprising: a data acquisition module 802, a comparison module 804 and a cleaning control module 806, wherein:

[0125] The data acquisition module 802 is configured to acquire historical usage data of the extractor;

[0126] The comparison module 804 is configured to compare the historical usage data with a preset cleaning start condition in response to a shutdown instruction;

[0127] The cleaning control module 806 is configured to control the extractor to start cleaning when the historical usage data meets the preset cleaning start condition.

[0128] In one exemplary embodiment, the cleaning control module is further configured to control the extractor to perform multi-stage cleaning when the historical usage data meets the preset cleaning start condition.

[0129] In one exemplary embodiment, the multi-stage cleaning includes a pre-cleaning stage, a main cleaning stage and a post-cleaning stage executed in sequence, and the cleaning control module is further configured to:

[0130] In the pre-cleaning stage, the motor of the extractor is controlled to operate at a first rotating speed;

[0131] In the main cleaning stage, the motor of the range hood is controlled to operate at a second rotating speed; the first rotating speed is less than the second rotating speed.

[0132] In the post-cleaning stage, the motor of the range hood is controlled to operate at a third rotating speed; the third rotating speed is less than the second rotating speed.

[0133] In an exemplary embodiment, the range hood further comprises an oil stain cleaning device, and the cleaning control module is further configured to:

[0134] In the pre-cleaning stage, the oil stain cleaning device is controlled to operate at a first power;

[0135] In the main cleaning stage, the oil stain cleaning device is controlled to operate at a second power; the first power is less than the second power.

[0136] In an exemplary embodiment, the pre-cleaning stage comprises a plurality of sequentially executed pre-cleaning sub-stages, and the post-cleaning stage comprises a plurality of sequentially executed post-cleaning sub-stages, and the cleaning control module is further configured to:

[0137] In the pre-cleaning stage, the rotating speed of the motor of the range hood in a later pre-cleaning sub-stage is greater than that in a previous pre-cleaning sub-stage;

[0138] In the post-cleaning stage, the rotating speed of the motor of the range hood in a later post-cleaning sub-stage is less than that in a previous post-cleaning sub-stage.

[0139] In an exemplary embodiment, the historical use data comprises historical cleaning data and historical working data, and the cleaning control module is further configured to adjust the cleaning parameters of the range hood according to the historical cleaning data and the historical working data.

[0140] In an exemplary embodiment, the cleaning control module is further configured to acquire operating data of the motor of the range hood; and adjust the cleaning parameters of the range hood according to the operating data of the motor, the historical cleaning data and the historical working data.

[0141] In an exemplary embodiment, the cleaning control module is further configured to acquire environmental data of an environment in which the range hood is located; and control the range hood to start cleaning in a case where the environmental data satisfies a preset cleaning starting condition.

[0142] Each of the above modules of the range hood cleaning control device can be realized wholly or partially by software, hardware and a combination thereof. Each of the above modules can be embedded in or independent of a processor in a computer device in a hardware form, or can be stored in a memory in the computer device in a software form, so as to be called and executed by a processor to perform operations corresponding to each of the above modules.

[0143] In one embodiment, the application also provides a range hood, comprising a range hood body and a controller, the controller being configured to implement the steps of any of the above method embodiments.

[0144] In one exemplary embodiment, the range hood further comprises an oil stain cleaning device, the oil stain cleaning device being connected to the controller.

[0145] The oil stain cleaning device refers to a device for assisting in cleaning oil stains. The type of the oil stain cleaning device is not unique. For example, the oil stain cleaning device can be a heater, which can be arranged in the volute and can heat the oil stains to reduce the degree of adhesion of the oil stains. Alternatively, the oil stain cleaning device can be a steam generator, which can generate steam to soften and peel off the oil stains. Alternatively, the oil stain cleaning device can be an ultrasonic generator, which can generate ultrasonic waves to vibrate the volute and / or the impeller to help the oil stains to peel off. It can be understood that in other embodiments, the oil stain cleaning device can also be of other types, which are not limited herein.

[0146] In this embodiment, the range hood further comprises an oil stain cleaning device, the oil stain cleaning device being connected to the controller. The oil stain cleaning device can assist in cleaning the oil stains and improve the cleaning effect of the oil stains.

[0147] In one exemplary embodiment, the range hood further comprises an environment detection device, the environment detection device being connected to the controller.

[0148] The environment detection device can be arranged on the range hood or arranged elsewhere, as long as it is in communication connection with the controller of the range hood. The type of the environment detection device is not unique. For example, it can be a temperature and humidity sensor, which can detect temperature data and humidity data of the environment in which the range hood is located. Correspondingly, the environment data comprises the temperature data and the humidity data.

[0149] In this embodiment, the range hood further comprises an environment detection device, the environment detection device being connected to the controller, which can provide the controller with environment data, so as to facilitate the controller to perform subsequent steps according to the environment data and enrich the functions of the range hood.

[0150] In one exemplary embodiment, the range hood further comprises an interactive device, the interactive device being connected to the controller.

[0151] The interactive device is a device for interacting with the user, which can receive user instructions and forward them to the controller, and can also provide state prompt information to the user, so as to facilitate the user to understand the working state of the range hood. The type of the interactive device is not unique. For example, it can be a touch screen, a buzzer, a voice device, etc., which are not limited herein.

[0152] Exemplarily, the user can send an instruction to start cleaning or jump cleaning to the controller through the interactive device, so as to make the controller start or skip the cleaning program quickly. Meanwhile, the interactive device can also include a touch screen or a terminal, and the APP in the touch screen or the terminal can also push a cleaning completion prompt and a suggestion, so as to improve the depth of user interaction.

[0153] In the embodiment, the range hood further includes an interactive device connected to the controller. Through the interactive device, various interactions between the range hood and the user can be realized, and the use convenience of the range hood is improved.

[0154] In order to better understand the above embodiment, the following will be explained in detail in combination with a specific embodiment. In an embodiment, the range hood includes an oil stain cleaning device, an environment detection device and an interactive device. The oil stain cleaning device is a heating element, the environment detection device is a temperature and humidity sensor, and the interactive device includes a touch screen, a voice device and a terminal device, etc. As shown in the figure, the range hood cleaning control method includes the following steps: Figure 9

[0155] User behavior data collection: The controller records the historical use data of the user such as the on-off time and the cooking time, and stores them to the local database. By analyzing these data, the use frequency and cooking habits of the user are identified, and the basis for subsequent cleaning strategy is provided.

[0156] Self-cleaning program triggering mechanism: When the user presses the “off” key, the controller receives the off instruction, and judges whether the historical use data meets the preset cleaning starting condition. For example, if the user uses the range hood for more than a set time for consecutive days, or the recent cooking oil smoke is large (inferred according to the fan speed, running time, etc.), the cleaning program is automatically started.

[0157] Self-adaptive adjustment of cleaning parameters: The controller dynamically adjusts the cleaning parameters such as cleaning time, motor speed and heating element working mode through self-adaptive learning algorithm according to the historical cleaning data such as historical cleaning records, current range hood running state (such as motor temperature, speed, etc.) and user use habits, so as to balance the cleaning effect and energy consumption.

[0158] Multi-stage cleaning process:

[0159] Pre-cleaning stage: The motor runs at low speed, and the heating is slightly increased to soften the oil stains on the surface of the impeller.

[0160] Main cleaning stage: The motor speed is increased and the heating is enhanced, and the oil stains are stripped by high-speed airflow and heat effect.

[0161] Post-cleaning stage: The motor speed is reduced, and the running time is extended to ensure that the residual oil stains are discharged.

[0162] ​Cleaning effect evaluation and feedback: After each cleaning is completed, the controller evaluates the cleaning effect by analyzing motor operation data (such as current fluctuations, speed stability) and feeds back the evaluation results to the adaptive learning module for optimizing subsequent cleaning strategies.

[0163] User interaction optimization: Users can quickly start or skip cleaning programs through voice commands, and the display screen or APP can push cleaning completion prompts and suggestions to improve user interaction depth.

[0164] In addition, an environmental temperature and humidity sensor is introduced to collect real-time kitchen temperature and humidity data. The controller determines the possibility of oil condensation based on temperature and humidity trends, and automatically starts the cleaning program when the temperature and humidity drop below the set threshold, reducing the time of oil adhesion on the impeller and improving cleaning efficiency.

[0165] Extensively, on the basis of the original three-stage cleaning process, it can be further divided into five stages: preliminary heating, light cleaning, deep cleaning, cooling and oil removal, and final exhaust. Each stage dynamically adjusts the motor speed and heating intensity based on real-time oil detection results to improve cleaning effectiveness under different oil levels.

[0166] Extensively, reinforcement learning algorithms can also be introduced to automatically optimize cleaning strategies by continuously collecting feedback data (such as motor current, cleaning time, user satisfaction, etc.) during the cleaning process, forming personalized cleaning models, and improving cleaning efficiency and energy-saving effects over the long term.

[0167] This method can be implemented only by relying on the existing motor, heating elements and controller of the range hood, and has the advantages of energy saving, high efficiency and intelligence. Without user intervention, it further improves the cleaning effect and user experience.

[0168] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. The non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. The volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., without being limited thereto.

[0169] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0170] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A hood cleaning control method, characterized by, The method comprises: acquiring historical use data of the range hood; in response to a shutdown instruction, comparing the historical use data with a preset cleaning start condition; in a case where the historical use data meets the preset cleaning start condition, controlling the range hood to start cleaning.

2. The method of claim 1, wherein, The controlling the range hood to start cleaning in the case where the historical use data meets the preset cleaning start condition comprises: in the case where the historical use data meets the preset cleaning start condition, controlling the range hood to perform multi-stage cleaning.

3. The method of claim 2, wherein, The multi-stage comprises a pre-cleaning stage, a main cleaning stage and a post-cleaning stage performed in sequence, and the controlling the range hood to perform multi-stage cleaning comprises: in the pre-cleaning stage, controlling a motor of the range hood to operate at a first rotating speed; in the main cleaning stage, controlling the motor of the range hood to operate at a second rotating speed; the first rotating speed is less than the second rotating speed; in the post-cleaning stage, controlling the motor of the range hood to operate at a third rotating speed; the third rotating speed is less than the second rotating speed.

4. The method of claim 3, wherein, The range hood further comprises an oil stain cleaning device, and the method further comprises: in the pre-cleaning stage, controlling the oil stain cleaning device to operate at a first power; in the main cleaning stage, controlling the oil stain cleaning device to operate at a second power; the first power is less than the second power.

5. The method of claim 3, wherein, The pre-cleaning stage comprises a plurality of pre-cleaning sub-stages performed in sequence, and the post-cleaning stage comprises a plurality of post-cleaning sub-stages performed in sequence, and the method further comprises: in the pre-cleaning stage, controlling the motor of the range hood to operate at a rotating speed in a subsequent pre-cleaning sub-stage that is greater than a rotating speed in a previous pre-cleaning sub-stage; in the post-cleaning stage, controlling the motor of the range hood to operate at a rotating speed in a subsequent post-cleaning sub-stage that is less than a rotating speed in a previous post-cleaning sub-stage.

6. The method of claim 1, wherein, The historical use data comprises historical cleaning data and historical working data, and after the controlling the range hood to start cleaning in the case where the historical use data meets the preset cleaning start condition, the method further comprises: adjusting a cleaning parameter of the range hood according to the historical cleaning data and the historical working data.

7. The method of claim 6, wherein, After the controlling the range hood to start cleaning in the case where the historical use data meets the preset cleaning start condition, the method further comprises: acquiring operating data of a motor of the range hood; adjusting a cleaning parameter of the range hood according to the operating data of the motor, the historical cleaning data and the historical working data.

8. The method of claim 1, wherein, The method further comprises: acquiring environmental data of an environment in which the range hood is located; in a case where the environmental data meets the preset cleaning start condition, controlling the range hood to start cleaning.

9. A hood cleaning control device, characterized in that The device comprises: a data acquisition module configured to acquire historical use data of the range hood; a comparison module configured to, in response to a shutdown instruction, compare the historical use data with a preset cleaning start condition; a cleaning control module configured to, in a case where the historical use data meets the preset cleaning start condition, control the range hood to start cleaning.

10. A range hood characterized by, The extractor hood comprises a hood body and a controller for implementing the steps of the method according to any one of claims 1 to 8.

11. The hood according to claim 10, characterized in that, The extractor hood further comprises a dirt cleaning device connected to the controller.

12. The hood according to claim 10, characterized in that, The extractor hood further comprises an environment detection device connected to the controller.

13. The hood according to claim 10, characterized in that, The extractor hood further comprises an interaction device connected to the controller.

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