CN112361420A - Range hood cleaning control method and device and range hood - Google Patents
Range hood cleaning control method and device and range hood Download PDFInfo
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- CN112361420A CN112361420A CN202011438477.XA CN202011438477A CN112361420A CN 112361420 A CN112361420 A CN 112361420A CN 202011438477 A CN202011438477 A CN 202011438477A CN 112361420 A CN112361420 A CN 112361420A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The application relates to a range hood cleaning control method, a range hood cleaning control device and a range hood, wherein the method comprises the following steps: when detecting that the range hood does not operate, controlling the odor detection device to work; wherein, the smell detection device is arranged in a volute of the range hood; when an alarm signal sent by the odor detection device is received, the ultrasonic wave generation device is controlled to clean the range hood; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value. Target gas content in the volute is automatically detected when the range hood is not operated, the ultrasonic generating device is started to clean the range hood when the target gas content is larger than a content threshold value, self-cleaning of the range hood is timely achieved, the trouble of disassembling and cleaning is avoided, and using convenience is improved.
Description
Technical Field
The application relates to the technical field of intelligent equipment, in particular to a range hood cleaning control method and device and a range hood.
Background
With the development of science and technology and the continuous progress of society, the living standard of people is higher and higher, and the range hood has become the kitchen appliance essential in modern family cooking, and every family all uses every day. After the range hood is used for a period of time, a wind wheel and the interior of a volute in the suction and exhaust system can adsorb a lot of oil stains due to the contact of oil smoke during use, and the oil stains formed are difficult to clean as the time is longer, so that professional cleaning personnel are required to regularly disassemble the range hood for comprehensive cleaning, a large amount of time and money are spent, and great inconvenience is caused. If the inner cavity can not be cleaned for a long time, the load in the suction and exhaust system is increased, the performance index is reduced, the suction force is reduced, the noise is increased, and the like, and especially, the oil stain on the wind wheel has great influence on the performance of the range hood if the oil stain is not cleaned in time. Except the performance is reduced, the oil stain is accumulated and bred with bacteria, peculiar smell and other residues, which seriously affect the body health of the user.
Traditional cigarette machine that has cleaning function all is by user's self decision when wasing, and the greasy dirt cumulant of different user's cigarette machines is different, and people do not know how just can in time wash the cigarette machine, have the shortcoming that the convenience of use is low.
Disclosure of Invention
Therefore, it is necessary to provide a method and a device for controlling the cleaning of a range hood and a range hood, which can effectively improve the convenience of use, in order to solve the problem of low convenience of cleaning the range hood with a cleaning function.
A cleaning control method for a range hood comprises the following steps:
when detecting that the range hood does not operate, controlling the odor detection device to work; the odor detection device is arranged in a volute of the range hood;
when an alarm signal sent by the odor detection device is received, the ultrasonic wave generation device is controlled to clean the range hood; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value.
In one embodiment, the controlling the ultrasonic wave generating device to clean the range hood when receiving the alarm signal sent by the odor detecting device includes:
when an alarm signal sent by the odor detection device is received, the information prompt device is controlled to output cleaning prompt information;
and when receiving a cleaning instruction input corresponding to the cleaning reminding information, controlling an ultrasonic wave generating device to clean the range hood.
In one embodiment, the alarm signal includes a first type signal and a second type signal, the content threshold includes a first threshold and a second threshold, and the second threshold is greater than the first threshold, the first type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the first threshold and less than or equal to the second threshold, and the second type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the second threshold;
when receiving the alarm signal that smell detection device sent, control information suggestion device output washs and reminds information, includes:
when a first type signal sent by the odor detection device is received, the information prompt device is controlled to output first type prompt information;
and when a second type of signal sent by the odor detection device is received, the control information prompting device outputs second type of prompting information.
In one embodiment, the controlling the ultrasonic wave generating device to clean the range hood when receiving the alarm signal sent by the odor detecting device includes:
and when the content of the target gas is judged to be larger than a preset safety threshold value according to the alarm signal sent by the smell detection device, the ultrasonic wave generation device is automatically started to clean the range hood.
A cleaning control device of a range hood comprises:
the odor detection module is used for controlling the odor detection device to work when detecting that the range hood does not operate; the odor detection device is arranged in a volute of the range hood;
the cleaning control module is used for controlling the ultrasonic generating device to clean the range hood when receiving the alarm signal sent by the smell detection device; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value.
A range hood comprises an impeller, a volute, a smell detection device, an ultrasonic generation device and a controller, wherein the smell detection device is installed in the volute, the controller is connected with the smell detection device and the ultrasonic generation device, and the controller is used for carrying out cleaning control according to the method.
In one embodiment, the range hood further comprises an interaction device connected with the controller.
In one embodiment, the interactive device comprises an information prompt device and an ultrasonic cleaning button which are connected with the controller.
In one embodiment, the information prompting device is an indicator light.
In one embodiment, the interactive device further comprises a display panel connected to the controller.
According to the range hood cleaning control method and device and the range hood, when the range hood is detected not to be operated, the odor detection device is controlled to detect the content of the target gas in the volute of the range hood, and when an alarm signal sent when the odor detection device detects that the content of the target gas in the volute is larger than a content threshold value is received, the ultrasonic wave generation device is controlled to clean the range hood. Target gas content in the volute is automatically detected when the range hood is not operated, the ultrasonic generating device is started to clean the range hood when the target gas content is larger than a content threshold value, self-cleaning of the range hood is timely achieved, the trouble of disassembling and cleaning is avoided, and using convenience is improved.
Drawings
FIG. 1 is a flow chart of a method for controlling a range hood cleaning according to an embodiment;
FIG. 2 is a flowchart illustrating the process of controlling the ultrasonic generator to clean the range hood when receiving the alarm signal from the odor detector in one embodiment;
FIG. 3 is a block diagram of an embodiment of a cleaning control device for a range hood;
FIG. 4 is a block diagram of an embodiment of a range hood;
FIG. 5 is a block diagram of a range hood according to another embodiment;
fig. 6 is a schematic diagram of a cleaning control process of the range hood in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. The "connection" in the following embodiments is understood as "electrical connection", "communication connection", or the like if the connected circuits, modules, units, or the like have electrical signals or data transmission therebetween.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, the terminology used in this specification includes any and all combinations of the associated listed items.
In one embodiment, as shown in fig. 1, there is provided a method for controlling cleaning of a range hood, including:
step S110: and when detecting that the range hood does not operate, controlling the odor detection device to work.
Wherein, the smell detection device is arranged in a volute of the range hood. Specifically, the running state of the range hood can be monitored through the controller, and when the range hood is detected to be in a standby state after finishing working, the controller controls the odor detection device located in the volute of the range hood to start working and collect the content of the target gas in the volute. The state of the range hood when not in operation is only detected by controlling the smell detection device, so that the interference of the normal operation of the range hood caused by cleaning when the range hood is in operation is avoided, and the cleaning effect is poor. The specific type of the target gas is not unique, and the type of the odor detection device may be different according to the target gas. In this embodiment, the smell detection device can adopt the smell detection sensor to detect the content of harmful gas that produces such as the greasy dirt in the spiral case. The controller can adopt an independent control chip or the original control chip of the range hood.
Step S120: and when an alarm signal sent by the odor detection device is received, the ultrasonic wave generation device is controlled to clean the range hood.
The alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value. Specifically, the smell detection device detects the content of target gas in the volute and compares the content with a preset threshold value, when the content of the target gas is larger than the preset content threshold value, an alarm signal is sent to the controller, and the controller starts the ultrasonic generation device to clean the range hood after receiving the alarm signal. It can be understood that if the content of the target gas is less than or equal to the content threshold, the odor detection device continues to detect the content of the target gas in the volute of the range hood when the range hood is not in operation, and does not send an alarm signal.
The ultrasonic generating device can be fixed outside the volute in a screw buckling or framework mode, and the ultrasonic generating device drives the volute and the impeller inside the volute to vibrate by generating ultrasonic waves after being started, so that grease on the inner wall of the volute and the impeller can be cleaned in time. In addition, the ultrasonic generating device is fixed outside the volute, so that the ultrasonic generating device can be prevented from being corroded by oil stains, and the work of the range hood is not hindered.
According to the range hood cleaning control method, when the range hood is detected not to be operated, the odor detection device is controlled to detect the content of the target gas in the volute of the range hood, and when an alarm signal sent when the odor detection device detects that the content of the target gas in the volute is larger than a content threshold value is received, the ultrasonic wave generation device is controlled to clean the range hood. Target gas content in the volute is automatically detected when the range hood is not operated, the ultrasonic generating device is started to clean the range hood when the target gas content is larger than a content threshold value, self-cleaning of the range hood is timely achieved, the trouble of disassembling and cleaning is avoided, and using convenience is improved.
In one embodiment, as shown in FIG. 2, step S120 includes step S122 and step S124.
Step S122: and when the alarm signal sent by the odor detection device is received, the control information prompting device outputs cleaning prompting information.
After receiving the alarm signal sent by the smell detection device, the controller firstly controls the information prompt device to output cleaning prompt information so as to prompt a user to clean the range hood. The information prompting device can specifically adopt an indicator light, and the indicator light flickers to remind a user; the information prompting device can also adopt a loudspeaker to remind the user in a voice broadcasting mode. Further, the odor detection device can also compare the detected target gas content with a plurality of content threshold values, and output different types of alarm signals to the controller according to the comparison result, and the controller outputs corresponding cleaning reminding information according to the type control information prompting device of the received alarm signals, so that a user can know the pollution degree of the range hood more conveniently.
Step S124: and when a cleaning instruction input corresponding to the cleaning reminding information is received, controlling the ultrasonic wave generating device to clean the range hood.
After learning the washing warning information of information prompt device output, the ultrasonic cleaning button that sets up on the accessible range hood sends cleaning instruction to controller, and the controller controls ultrasonic wave generating device after receiving cleaning instruction and starts, washs the spiral case inner wall and the impeller of range hood.
Further, in an embodiment, the alarm signal includes a first type signal and a second type signal, the content threshold includes a first threshold and a second threshold, and the second threshold is greater than the first threshold, the first type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the first threshold and less than or equal to the second threshold, and the second type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the second threshold. Step S122 includes: when a first type signal sent by the odor detection device is received, the information prompt device is controlled to output first type prompt information; and when a second type of signal sent by the odor detection device is received, the control information prompting device outputs second type of prompting information.
Specifically, taking the example that the information prompting device adopts an indicator light, if the controller receives the first type signal, the pollution degree of the range hood is relatively light, and the indicator light is controlled to flash singly; if the controller receives the second type of signal, the pollution of the range hood is serious, and the indicator light is controlled to double flash. According to the detected difference of the target gas content in the volute, different reminding information is correspondingly output so that a user can know the pollution degree of the range hood, and the user can clean the range hood in time.
Further, in one embodiment, step S120 includes: and when the content of the target gas is judged to be larger than a preset safety threshold value according to the alarm signal sent by the smell detection device, the ultrasonic wave generation device is automatically started to clean the range hood.
The specific value of the preset safety threshold is not unique, and correspondingly, the preset safety threshold may be set as a first threshold, may also be set as a second threshold, or may be set as a value smaller than the first threshold, or may also be set as a value larger than the second threshold. And when the detected target gas content is greater than a preset safety threshold value, the odor detection device outputs a corresponding type of alarm signal to the controller. The controller automatically controls the ultrasonic generating device to start after receiving the alarm signal of the type, and the inner wall of the volute and the impeller of the range hood are cleaned in time.
In one embodiment, as shown in fig. 3, a range hood cleaning control device is further provided, which includes an odor detection module 110 and a cleaning control module 120.
The odor detection module 110 is used for controlling the odor detection device to work when detecting that the range hood is not running; wherein, the smell detection device is arranged in a volute of the range hood; the cleaning control module 120 is used for controlling the ultrasonic generating device to clean the range hood when receiving the alarm signal sent by the odor detection device; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value.
In one embodiment, the cleaning control module 120 controls the information prompting device to output cleaning prompting information when receiving the alarm signal sent by the odor detection device; and when a cleaning instruction input corresponding to the cleaning reminding information is received, controlling the ultrasonic wave generating device to clean the range hood.
Further, in an embodiment, the alarm signal includes a first type signal and a second type signal, the content threshold includes a first threshold and a second threshold, and the second threshold is greater than the first threshold, the first type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the first threshold and less than or equal to the second threshold, and the second type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the second threshold. When receiving a first type signal sent by the odor detection device, the cleaning control module 120 controls the information prompt device to output first type prompt information; and when a second type of signal sent by the odor detection device is received, the control information prompting device outputs second type of prompting information.
In one embodiment, the cleaning control module 120 automatically starts the ultrasonic wave generating device to clean the range hood when the content of the target gas is judged to be greater than the preset safety threshold according to the alarm signal sent by the odor detection device.
For the specific definition of the range hood cleaning control device, reference may be made to the above definition of the range hood cleaning control method, and details are not described herein again. All modules in the range hood cleaning control device can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
According to the cleaning control device for the range hood, when the condition that the range hood does not operate is detected, the odor detection device is controlled to detect the content of the target gas in the volute of the range hood, and when the alarm signal sent when the odor detection device detects that the content of the target gas in the volute is larger than the content threshold value is received, the ultrasonic wave generation device is controlled to clean the range hood. Target gas content in the volute is automatically detected when the range hood is not operated, the ultrasonic generating device is started to clean the range hood when the target gas content is larger than a content threshold value, self-cleaning of the range hood is timely achieved, the trouble of disassembling and cleaning is avoided, and using convenience is improved.
In one embodiment, as shown in fig. 4, there is further provided a range hood, which includes an impeller, a volute, a smell detection device 210, an ultrasonic generation device 220, and a controller 230, wherein the smell detection device 210 is installed in the volute, the controller 230 is connected to the smell detection device 210 and the ultrasonic generation device 220, and the controller 230 is configured to perform cleaning control according to the above-mentioned method. In addition, the range hood also comprises a motor, the impeller, the volute and the motor form a main body of the range hood, and the range hood discharges oil smoke when being opened. The controller can adopt an independent control chip or the original control chip of the range hood. The ultrasonic wave generating device 220 can be fixed outside the volute through a screw buckle or a framework mode, and the ultrasonic wave generating device 220 can drive the volute and the impeller inside the volute to vibrate through generating ultrasonic waves after being started, so that grease on the inner wall of the volute and the impeller can be cleaned in time.
In one embodiment, as shown in fig. 5, the range hood further includes an interaction device 240 connected to the controller 230. The controller 230 may output the washing alert information through the controller 230 so as to be known by the user. In addition, the user can also check the operation state of the range hood through the interactive device 240 and control, for example, control the operation mode, the air volume, and the like of the range hood.
The specific configuration of the interaction means 240 is not exclusive and in one embodiment, the interaction means 240 includes an information prompt means and an ultrasonic cleaning button connected to the controller 230. The information prompting device can specifically adopt an indicator light. In addition, the interaction device 240 may further include a display panel connected to the controller 230, and the display panel may specifically employ a touch screen. The ultrasonic cleaning button can be arranged on the display panel and can also be arranged at other parts of the range hood.
Above-mentioned range hood detects range hood not operation, and control smell detection device 210 detects the interior target gas content of the spiral case of range hood, and when receiving the alarm signal that sends when smell detection device 210 detected that the interior target gas content of spiral case is greater than the content threshold value, control ultrasonic wave generating device 220 washs range hood. Through target gas content in the spiral case of automated inspection when range hood is not in operation to start ultrasonic wave generating device 220 and wash range hood when target gas content is greater than the content threshold value, realize carrying out the self-cleaning in time to range hood, still avoid dismantling abluent puzzlement, improved the convenience in use.
In order to better understand the above method, device and range hood for cleaning control, the following detailed explanation is made with reference to specific embodiments.
As is known well, oil stains are stains which are not easy to dissolve in liquid, and the range hood with the cleaning function on the market is only limited to simple cleaning liquid spraying and soaking cleaning or heated steam spraying and soaking, the cleaning effect is uncontrollable, the device is complex, a large amount of water is consumed, a large amount of waste water is not easy to collect after cleaning, and the range hood is not environment-friendly. In addition, most of the existing range hoods with cleaning functions only clean the impeller, but do not have the function of cleaning oil stains on the inner wall of the volute, and the oil stains adsorbed on the inner wall of the volute also can seriously affect the performance of the range hood. Along with the continuous improvement of people's life, to the increasingly urgent toward of beautiful life, to the continuous rising of the convenience of use demand of intelligent household electrical appliances, to the processing of range hood inner chamber greasy dirt, develop a better effect, the cleaning means of more convenient environmental protection has important practical meaning.
Based on this, range hood that this application provided, including the cigarette machine main part, still include smell detection sensor, controller, pilot lamp, display panel and ultrasonic cleaning device. The odor detection sensor is arranged in the volute and connected with the controller, the odor detection sensor mainly detects harmful gas, and when the value of the harmful gas reaches a certain peak value x, the odor detection sensor gives a signal to the controller to indicate that the cleaning time is up. The controller is connected with the pilot lamp again, and after harmful gas's quantity value reached a certain height, the pilot lamp will twinkle, reminds people to begin ultrasonic cleaning, and the washing button on the user's accessible touch-sensitive screen starts ultrasonic wave generating device, and ultrasonic wave generating device opens ultrasonic cleaning after starting.
Fig. 6 is a schematic diagram of a cleaning control flow of the range hood. Range hood is at the operation in-process, and smell detection sensor is out of work, and smell detection sensor begins work when the cigarette machine does not operate, begins to detect harmful gas content in the cigarette machine, and when gas content was greater than standard value x, transmission signal gave the controller, and controller control pilot lamp singly dodges, and when gas content was greater than standard value y, the pilot lamp was two dodges, reminds people to wash the lampblack absorber, and wherein, standard value y is greater than standard value x. The ultrasonic cleaning button is arranged on the display panel, and the ultrasonic cleaning button is started after being pressed down, so that oil smoke adhered to the impeller falls off, the impeller is self-cleaned, and the trouble of disassembling and cleaning is avoided.
The ultrasonic cleaning key can be arranged on the display panel and can also be arranged at other parts of the range hood. In addition, except that the ultrasonic wave key can be manually controlled to start the ultrasonic wave generating device, the controller can also control the ultrasonic cleaning to be automatically started after the content of harmful gas reaches a certain value.
Above-mentioned range hood detects the smell through installation smell detection sensor in the spiral case, after smell detection sensor gives out the signal, controller control pilot lamp scintillation reminds people to open ultrasonic cleaning, need not use any washing liquid, green safety, clean thoroughly, clean effect unanimous and with low costs. Grease on the impeller can be cleaned in time, dynamic balance of the impeller is guaranteed, service lives of the impeller and the motor are prolonged, and lasting power of a fan system is kept.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cleaning control method for a range hood is characterized by comprising the following steps:
when detecting that the range hood does not operate, controlling the odor detection device to work; the odor detection device is arranged in a volute of the range hood;
when an alarm signal sent by the odor detection device is received, the ultrasonic wave generation device is controlled to clean the range hood; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value.
2. The method for controlling the cleaning of the range hood according to claim 1, wherein the step of controlling the ultrasonic wave generating device to clean the range hood when receiving the alarm signal sent by the odor detecting device comprises the following steps:
when an alarm signal sent by the odor detection device is received, the information prompt device is controlled to output cleaning prompt information;
and when receiving a cleaning instruction input corresponding to the cleaning reminding information, controlling an ultrasonic wave generating device to clean the range hood.
3. The range hood cleaning control method according to claim 2, wherein the alarm signal includes a first type signal and a second type signal, the content threshold includes a first threshold and a second threshold, and the second threshold is greater than the first threshold, the first type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the first threshold and less than or equal to the second threshold, and the second type signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than the second threshold;
when receiving the alarm signal that smell detection device sent, control information suggestion device output washs and reminds information, includes:
when a first type signal sent by the odor detection device is received, the information prompt device is controlled to output first type prompt information;
and when a second type of signal sent by the odor detection device is received, the control information prompting device outputs second type of prompting information.
4. The method for controlling the cleaning of the range hood according to claim 1, wherein the step of controlling the ultrasonic wave generating device to clean the range hood when receiving the alarm signal sent by the odor detecting device comprises the following steps:
and when the content of the target gas is judged to be larger than a preset safety threshold value according to the alarm signal sent by the smell detection device, the ultrasonic wave generation device is automatically started to clean the range hood.
5. The utility model provides a range hood washs controlling means which characterized in that includes:
the odor detection module is used for controlling the odor detection device to work when detecting that the range hood does not operate; the odor detection device is arranged in a volute of the range hood;
the cleaning control module is used for controlling the ultrasonic generating device to clean the range hood when receiving the alarm signal sent by the smell detection device; the alarm signal is sent when the odor detection device detects that the content of the target gas in the volute of the range hood is greater than a content threshold value.
6. A range hood, comprising an impeller, a volute, a smell detection device, an ultrasonic generation device and a controller, wherein the smell detection device is installed in the volute, the controller is connected with the smell detection device and the ultrasonic generation device, and the controller is used for performing cleaning control according to the method of any one of claims 1 to 4.
7. The range hood of claim 6, further comprising an interface device coupled to the controller.
8. The range hood of claim 7, wherein the interaction device comprises an information prompt device and an ultrasonic cleaning button connected to the controller.
9. The range hood of claim 8, wherein the information prompt device is an indicator light.
10. The range hood of claim 8, wherein the interaction device further comprises a display panel connected to the controller.
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| CN202011438477.XA CN112361420A (en) | 2020-12-10 | 2020-12-10 | Range hood cleaning control method and device and range hood |
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