Method and device for controlling a range hood, range hood

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an oil fume exhauster, which comprises the following steps: controlling the rotation of an oil screen under the condition that a cooking bench is in an open state; and adjusting the rotation speed of the oil screen according to the rotation speed of a fan of the oil fume exhauster. In the application, the oil screen is immediately put into a working state to filter oil fume after the cooking bench is detected to be opened, then the rotation speed of the oil screen is adjusted according to the rotation speed of the fan of the oil fume exhauster, the rotation speed of the oil screen is kept matched with the rotation speed of the fan, the working mode of the oil screen is more flexible, the filtering efficiency of the oil fume is improved, and air pollution is reduced. The application further discloses a device for controlling the oil fume exhauster and the oil fume exhauster.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for controlling a range hood, and a range hood itself. Background Technology

[0002] Currently, range hoods are an essential appliance in the kitchen. By removing cooking fumes, users can enjoy cooking more comfortably. However, cooking produces fumes that pollute the air. Therefore, using a filtration device to filter the fumes passing through the range hood can effectively reduce pollution. Most related technologies use oil filters to filter the fumes.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] Oil filters have a relatively simple working method and low filtration efficiency for oil fumes. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a method and apparatus for controlling a range hood, and a range hood in order to solve the technical problem that the working mode of the oil filter is relatively simple and the filtration efficiency of oil fumes is low.

[0007] In some embodiments, the method for controlling a range hood includes: controlling the rotation of the oil filter when the stove is on; and adjusting the rotation speed of the oil filter according to the fan speed of the range hood.

[0008] In some embodiments, the apparatus for controlling a range hood includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling a range hood described above when executing the program instructions.

[0009] In some embodiments, the range hood includes a water box and a rotatable oil filter, wherein a portion of the oil filter is submerged in the water box and the remaining portion is disposed in the flow path of the oil fumes to filter the oil fumes.

[0010] The method and apparatus for controlling a range hood, and the range hood itself, provided in this disclosure, can achieve the following technical effects:

[0011] Once the stove is detected as being turned on, the oil filter immediately starts operating, putting it into working mode to filter the fumes. Then, the speed of the oil filter is adjusted according to the speed of the range hood fan to keep the oil filter speed matched with the fan speed, making the oil filter work more flexibly, improving the filtration efficiency of fumes, and reducing air pollution.

[0012] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0014] Figure 1 This is a schematic diagram of the structure of the device for filtering oil fumes provided in the embodiments of this disclosure;

[0015] Figure 2 This is a schematic diagram of the back structure of the device for filtering oil fumes provided in the embodiments of this disclosure;

[0016] Figure 3 This is a schematic diagram of the structure of the water box and oil mesh mounting frame assembly provided in an embodiment of this disclosure;

[0017] Figure 4 This is a schematic diagram of the structure of the water box provided in an embodiment of this disclosure;

[0018] Figure 5 This is a schematic diagram of the structure of an oil mesh provided in an embodiment of this disclosure;

[0019] Figure 6 This is a schematic diagram of another oil mesh structure provided in an embodiment of this disclosure;

[0020] Figure 7 This is a schematic diagram of the structure of a range hood provided in an embodiment of this disclosure;

[0021] Figure 8 This is a flowchart of a method for controlling a range hood provided in an embodiment of this disclosure;

[0022] Figure 9 This is a schematic diagram of a device for controlling a range hood provided in an embodiment of this disclosure;

[0023] Figure 10 This is a schematic diagram of another device for controlling a range hood provided in an embodiment of this disclosure.

[0024] Figure label:

[0025] 100. Oil screen; 101. Serrated structure; 200. Water box; 201. Shaft seat; 202. Ultrasonic generator; 203. Water inlet; 204. Drain outlet; 205. Sewage outlet; 300. Drive unit; 400. Oil screen mounting frame; 401. Semi-circular opening; 500. Nozzle; 501. Water inlet; 600. Baffle; 700. Air inlet; 800. First control module; 810. Second control module; 811. Calculation unit; 820. Detection module; 821. Rotation speed detection unit; 822. Temperature detection unit; 900. Processor; 901. Memory; 902. Communication interface; 903. Bus. Detailed Implementation

[0026] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0027] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0028] Unless otherwise stated, the term "multiple" means two or more.

[0029] Combination Figure 1-6 As shown, this embodiment of the present disclosure provides a device for filtering oil fumes, comprising: an oil filter 100, a water box 200, and a drive device 300. The oil filter 100 is partially disposed in the flow path of the oil fumes; the water box 200 is disposed at a position that can immerse a portion of the oil filter 100, and the portion of the oil filter 100 not submerged by the water box 200 filters the oil fumes; the drive device 300 is connected to the oil filter 100 and is configured to drive the oil filter 100 to rotate.

[0030] The device for filtering oil fumes provided in this embodiment rotates the oil mesh 100 under the drive of the drive device 300, causing a portion of the circular oil mesh 100 to be submerged in water in the water box 200 and to adhere to the water in the water box 200, forming a water film on the oil mesh 100. When the oil fumes pass through the water film, the grease will dissolve into the water film, and the water film will re-enter the water box 200 along with the oil mesh 100, where it will be cleaned and detached from the oil mesh 100, thereby achieving efficient filtration of the oil fumes. Due to the supporting effect of the oil mesh 100, the water film adsorbed on the oil mesh 100 can withstand greater wind force, thus being less affected by wind force and not affecting the flow rate of oil fumes.

[0031] Optionally, the water box 200 is located at the lower end of the oil mesh 100 and submerges the lower half of the oil mesh 100. In this way, the water box 200 is more stable at the lower end of the oil mesh 100, preventing water in the water box 200 from spilling.

[0032] Optionally, the water box 200 is vertically positioned at the lower end of the oil filter 100. This allows one end of the oil filter 100 to be submerged in the water box 200, and the water box 200 occupies less space when vertically positioned.

[0033] Optionally, the oil filter 100 is positioned perpendicular to the flow path of the oil fumes. This allows the oil fumes to pass vertically through the oil filter 100, improving the filtration efficiency.

[0034] Optionally, one or more oil filters 100 are provided. In this way, different numbers of oil filters 100 can be set according to different ventilation areas of oil fumes, so that all oil fumes can pass through the oil filters 100, thereby improving the filtration effect of oil fumes.

[0035] Optionally, portions of the multiple oil filters 100 can be housed within the same water box 200. This allows for water supply to multiple oil filters 100 using a single water box 200, simplifying the structure, increasing the utilization rate of the water box 200, and reducing costs.

[0036] Optionally, the oil filter 100 is circular, and the drive device 300 is connected to the center of the oil filter 100. This ensures that the area covered by the oil filter 100 is the same whether it is rotating or stationary, allowing for more stable filtration of oil fumes.

[0037] Optionally, the water box 200 has an oil filter mounting frame 400 on its upper side, and the oil filter mounting frame 400 has a semi-circular opening 401. Part of the oil filter 100 is set inside the semi-circular opening 401. This makes it easy to install the oil filter mounting frame 400 on the range hood, and with the oil filter mounting frame 400 blocking the oil fumes, it ensures that the oil fumes pass through the oil filter 100 inside the semi-circular opening 401, thereby improving the filtration and purification effect of the oil fumes.

[0038] Optionally, the outer ring of the oil filter mounting frame 400 is rectangular. In this way, the inlet of the range hood is mostly rectangular, which facilitates the integration of the oil filter mounting frame 400 with the range hood.

[0039] Optionally, the water tank 200 and the oil mesh mounting frame 400 are integrally molded. This improves the stability of the connection between the oil mesh mounting frame 400 and the water tank 200, and enhances the overall stability.

[0040] Optionally, a bearing seat 201 is provided at the opening of the water box 200, and the drive device 300 is connected to the oil screen 100 through the bearing seat 201. In this way, the shaft of the drive device 300 can be supported by the bearing seat 201, thus maintaining the stability of the rotation of the oil screen 100.

[0041] Optionally, the water box 200 has a flat structure, and its sidewalls are parallel to the oil screen 100. In this way, the water box 200 is fitted parallel to the lower part of the oil screen 100, so that part of the oil screen 100 can be immersed in the water box 200 to clean the oil screen 100 and provide a water film, thereby reducing the space occupied by the water box 200.

[0042] Optionally, the area of ​​the oil filter 100 submerged in the water within the water box 200 is the same as the area of ​​the portion of the oil filter 100 positioned in the oil fume flow path. This ensures that the oil filter 100 positioned within the oil fume flow path is uniformly coated with a water film, resulting in better filtration of the oil fumes.

[0043] Optionally, water or cleaning lotion can be placed in the water tank 200. Water is inexpensive and convenient, reducing costs and making it easy to use for cleaning the oil filter 100 and applying a water film, while cleaning lotion has a better absorption effect on oil fumes.

[0044] Optionally, a heating device is provided inside the water tank 200. This heating device heats the liquid inside the water tank 200, and the high temperature softens the oil stains, making them easier to remove from the oil filter 100, thereby improving the cleaning efficiency of the oil filter 100. The heating device can be any electric heating device that can be used in water.

[0045] Optionally, an ultrasonic generator 202 is provided inside the water tank 200. In this way, ultrasonic vibrations can be generated by the ultrasonic generator 202 to enhance the cleaning effect on the oil filter 100.

[0046] Optionally, the water box 200 has a mounting groove inside for mounting the ultrasonic generator 202. This provides sufficient mounting space for the ultrasonic generator 202 and prevents the ultrasonic generator 202 from contacting the oil filter 100 and affecting the rotation of the oil filter 100.

[0047] Optionally, a brush is provided on the inner wall of the water tank 200. In this way, the brush inside the water tank 200 can be used to scrub and clean the oil filter 100 that enters the water tank 200, making the oil filter 100 easier to clean.

[0048] Optionally, the brush is positioned in a long, narrow area, with one end at the edge of the water tank 200 and the other end extending into the water tank 200. The length of the long, narrow area is greater than or equal to the depth to which the oil filter 100 is submerged in water. This allows the brush to clean the portion of the oil filter 100 submerged in water, thus keeping the oil filter 100 clean.

[0049] Optionally, the brush and water tank 200 are detachably connected. This facilitates the removal and replacement of the brush. The detachable connection can be achieved through snap-fit ​​or threaded connection.

[0050] Optionally, the water tank 200 has a water inlet 203 on its lower side and a drain outlet 204 on its upper side wall. In this way, water enters from the lower side of the water tank 200 and drains from the upper side wall of the water tank 200, so that the oil and dirt floating on the upper layer of the water tank 200 will be discharged with the drainage, keeping the water inside the water tank 200 clean.

[0051] Optionally, a drain port 205 is also provided on the lower side of the water tank 200, and a switch valve is provided on the drain port 205. In this way, oil stains and dirt deposited in the water tank 200 can be discharged periodically to keep the water tank 200 clean.

[0052] Optionally, the oil screen 100 has circular mesh holes. In this way, the circular holes can make the formed water film more stable and increase the preservation time of the water film.

[0053] Optionally, the mesh aperture is greater than or equal to 0.5 mm and less than or equal to 5 mm. In this way, setting the aperture of the oil mesh 100 between 0.5 mm and 5 mm can keep the formed water film stable without affecting the ventilation efficiency.

[0054] Optionally, the pore size of the oil mesh 100 is 0.5 mm. This smaller pore size results in a more stable water film, provides appropriate wind resistance to keep the oil fumes at the water film, promotes the integration of oil fumes into the water film, and improves the efficiency of the water film in absorbing oil fumes.

[0055] Optionally, the oil mesh 100 has a pore size of 5mm. This results in a larger pore size, lower wind resistance, and a larger water film area, allowing oil fumes to pass through the water film quickly while increasing the efficiency of oil fumes integrating into the water film.

[0056] Optionally, the ratio of the area of ​​the mesh to the area of ​​the oil filter 100 is 0.5 to 0.8. This maintains the ventilation efficiency of the oil filter 100 and provides sufficient water film area for absorbing oil fumes.

[0057] Optionally, the device for filtering oil fumes further includes a spray structure mounted on the water box 200 and configured to spray the oil filter 100 entering the water box 200. In this way, spraying the oil filter 100 with the spray structure can clean the oil filter 100, keep the surface of the oil filter 100 clean, and make it easier for the water film to adhere to the oil filter 100.

[0058] Optionally, the spraying mechanism includes a water pump and a nozzle 500. The water pump's inlet 203 is connected to the water box 200 or to a water supply source, and the nozzle 500 is connected to the water pump's outlet. In this way, the water in the water box 200 is used to spray and clean the oil filter 100, allowing for water reuse and saving water, or the connection to a water supply source maintains the cleanliness of the sprayed water, enhancing the cleaning effect on the oil filter 100.

[0059] Optionally, the nozzle 500 is positioned on the edge of the water tank 200, with the water spray direction facing inwards towards the water tank 200. This prevents water from splashing outwards, ensuring safety and hygiene, and providing better spray cleaning effect on the oil filter 100.

[0060] Optionally, the nozzle 500 is disposed on the inner wall of the water tank 200. This prevents water sprayed from the nozzle 500 from splashing.

[0061] Optionally, the inner wall of the nozzle 500 and the water box 200 are integrally formed, and a water inlet 501 is provided on the outer wall of the water box 200 corresponding to the nozzle 500. In this way, the nozzle 500 and the water box 200 are directly integrally formed, which makes the connection more stable, facilitates production, and facilitates water supply to the nozzle 500 through the water inlet 501.

[0062] Optionally, the nozzle 500 is elongated, and its length is the same as the depth to which the oil filter 100 is submerged in the water tank 200. This ensures that the nozzle 500 can clean the portion of the oil filter 100 that enters the water tank 200.

[0063] Optionally, the drive device 300 includes a motor and a rotating shaft driven by the motor, the rotating shaft being connected to the center of the oil filter 100. This allows the oil filter 100 to rotate around the center, continuously entering the water box 200 to coat it with a water film, thus filtering the oil fumes more effectively.

[0064] Optionally, a baffle 600 is provided on one side of the oil filter 100, and the motor is fixed to the rear side of the baffle 600, with the rotating shaft passing through the baffle 600 and connected to the oil filter 100. In this way, the baffle 600 can protect the motor, preventing oil fumes from passing through the motor for a long time and forming oil stains on the motor, thereby reducing the working efficiency of the motor.

[0065] Optionally, the baffle is set at a 600° angle. This allows for the guidance and diversion of cooking fumes, reducing resistance to their flow.

[0066] Optionally, the oil mesh 100 is provided with a serrated structure 101 at its circumference. Multiple oil meshes 100 are arranged side by side, and the serrated structures 101 between the oil meshes 100 meshes mesh intermesh with each other. In this way, the rotation of one oil mesh 100 can drive the other oil meshes 100 to rotate together. Multiple oil meshes 100 can be rotated by one motor, which reduces costs and ensures structural stability, keeping the rotation speed of multiple oil meshes 100 the same.

[0067] Combination Figure 7 As shown, this disclosure provides a range hood that includes the device for filtering oil fumes described in the above embodiments.

[0068] Optionally, the air inlet 700 of the range hood is set vertically or at an angle, and the oil filter 100 is parallel to the plane of the air inlet 700. In this way, the oil fumes enter the range hood perpendicularly to the oil filter 100, thereby improving the filtration efficiency of the range hood for oil fumes.

[0069] Optionally, multiple oil filters 100 are laid flat inside the air inlet 700 of the range hood. In this way, the oil filters 100 completely cover the air inlet 700, making it easier for the oil fumes to pass through the oil filters 100 and improving the purification effect of the oil fumes.

[0070] Combination Figure 8 As shown in the embodiments of this disclosure, a method for controlling a range hood is provided, comprising:

[0071] S01, when the stove is on, control the rotation of the oil filter;

[0072] S02, adjust the speed of the oil filter according to the fan speed of the range hood.

[0073] The method for controlling a range hood provided in this disclosure immediately operates the oil filter after the stove is detected to be turned on, so that the oil filter immediately enters the working state to filter the oil fumes. Then, the rotation speed of the oil filter is adjusted according to the fan speed of the range hood to keep the oil filter rotation speed matched with the fan speed, so that the working mode of the oil filter is more flexible, the filtration efficiency of oil fumes is improved, and air pollution is reduced.

[0074] Optionally, with the stove on, the oil filter is controlled to rotate at a first rotation speed. This ensures the oil filter rotates at a constant speed when the stove is on, facilitating subsequent adjustments to the filter's speed and improving the filtration efficiency of cooking fumes.

[0075] Optionally, the first rotation speed is the minimum rotation speed of the oil filter. In this way, when the stove is on, the oil filter rotates at the minimum speed, which facilitates subsequent adjustment of the oil filter speed.

[0076] Optionally, the first rotational speed is the midpoint between the highest and lowest rotational speeds of the oil filter. In this way, when the stove is on, the oil filter rotates directly at the midpoint speed, providing good oil fume filtration from the initial stage, facilitating oil fume filtration and improving filtration efficiency.

[0077] Optionally, the higher the fan speed of the range hood, the higher the rotation speed of the grease filter. This means that when the fan speed increases, the amount of grease drawn in within the same time frame also increases, and a higher grease filter rotation speed improves the grease filtration efficiency.

[0078] Optionally, the rotational speed of the grease filter and the rotational speed of the range hood fan satisfy the following relationship: v1 = a * v2, where v1 is the rotational speed of the grease filter, v2 is the rotational speed of the range hood fan, and a is a weighting coefficient. Thus, by using the above formula to adjust the rotational speed of the grease filter through the fan speed, the adjustment of the grease filter's rotational speed becomes easier.

[0079] Optionally, the weighting coefficient 'a' is determined based on the oil fume concentration. In this way, the weighting coefficient 'a', determined by the oil fume concentration, links the rotation speed v1 of the oil filter to the oil fume concentration. When the oil fume concentration changes, the rotation speed of the oil filter will change accordingly, thus improving the filtration efficiency of the oil fumes.

[0080] Optionally, the oil fume concentration is divided into multiple levels, each corresponding to a weighting coefficient 'a'. This links the oil filter rotation speed v1 to the oil fume concentration; when the oil fume concentration changes, the oil filter rotation speed changes accordingly, improving the filtration efficiency. For example, the oil fume concentration can be divided into three levels: high, moderate, and low. The weighting coefficient 'a' for the high concentration level is 0.08, for the moderate concentration level it is 0.05, and for the low concentration level it is 0.02.

[0081] Optionally, the rotation speed of the oil filter can be adjusted according to the fan speed of the range hood, including: increasing the oil filter rotation speed when the fan speed meets a first condition; and / or, decreasing the oil filter rotation speed or keeping the oil filter rotation speed unchanged when the fan speed meets a second condition. In this way, the oil filter rotation speed can be adjusted according to different conditions met by the fan speed, ensuring the oil fume filtration efficiency of the oil filter while making its operation more flexible, reducing energy consumption, and promoting energy conservation and environmental protection.

[0082] Optionally, the first condition includes: the fan speed is greater than a first threshold. Thus, when the fan speed is greater than the first threshold, it is determined that the fan speed meets the first condition, thereby increasing the speed of the oil filter to filter the oil fumes, which helps improve the filtration efficiency. For example, the first threshold corresponds to a fan speed; when a fan speed greater than the first threshold is detected, it is determined that the fan speed meets the first condition.

[0083] Optionally, the first threshold is v1, where 2000 r / min ≤ v1 ≤ 3000 r / min. This ensures that the range of the first threshold is within the range of relatively high fan speeds, making it easier to increase the speed of the oil filter to filter oil fumes, thereby improving the oil fume filtration efficiency.

[0084] Optionally, the first threshold v1 is 2500 r / min. This results in a higher fan speed corresponding to the first threshold, which facilitates increasing the oil filter speed to filter oil fumes, thereby improving the oil fume filtration efficiency.

[0085] Optionally, when the fan speed meets the second condition, if the oil filter speed is greater than its minimum speed, the oil filter speed is reduced; if the oil filter speed is equal to its minimum speed, the oil filter speed is kept constant. In this way, when the fan speed meets the second condition, the oil filter speed is reduced to the minimum speed, which reduces the energy consumed by the oil filter rotation while ensuring the oil fume filtration efficiency of the oil filter.

[0086] Optionally, the second condition includes: the fan speed is less than a second threshold. Thus, when the fan speed is less than the second threshold, it is determined that the fan speed meets the second condition, and the oil filter speed is reduced to the minimum operating speed, thereby ensuring the oil fume filtration efficiency of the oil filter while reducing the energy consumed by the oil filter rotation.

[0087] Optionally, the first threshold is equal to the second threshold, i.e., v1 = v2. In this way, when the first threshold equals the second threshold, the speed of the oil filter is increased when the fan speed is higher than the threshold, and decreased when it is lower than the threshold. The adjustment is more sensitive and can better adjust the speed of the oil filter according to the changes in the fan speed, thereby improving the filtration efficiency of the oil fumes. Moreover, adjusting the speed of the oil filter through a single threshold simplifies the control process.

[0088] Optionally, the method for controlling the range hood further includes: detecting the temperature of the stovetop; and determining the working status of the stovetop based on the temperature. This method of determining whether the stovetop is in operation based on its temperature is simple, convenient, and relatively accurate.

[0089] Optionally, the temperature of the stove can be detected within 5cm of the heating zone. This allows for a more stable assessment of the stove's operating status by sensing the temperature within 5cm of the heating zone.

[0090] Optionally, the heating zone of the stove is the burner area.

[0091] Optionally, the working status of the stove can be determined based on temperature, including: determining that the stove is in the "on" state when the temperature exceeds a preset temperature. In this way, when the stove temperature exceeds the preset temperature, it indicates that the stove has started heating, making the determination of the stove being in the "on" state more accurate.

[0092] Optionally, the preset temperature is greater than or equal to 50 degrees Celsius. This ensures that the room temperature will generally not exceed 50 degrees Celsius. Setting the preset temperature to above 50 degrees Celsius avoids misjudgments caused by room temperature fluctuations.

[0093] Optionally, the method for controlling the range hood further includes: adjusting the speed of the oil filter to 0 based on the fan speed when the stove is off. In this way, when the stove is off, the user will turn off the range hood, and after the range hood is turned off, the fan speed will gradually decrease to 0. At this time, adjusting the oil filter speed according to the fan speed until the speed reaches 0 avoids unnecessary energy waste.

[0094] Optionally, when the stove is off, the rotation speed of the grease filter gradually decreases as the fan speed decreases, until the fan speed drops to 0, at which point the grease filter rotation speed also gradually decreases to 0. Thus, when the stove is off, the user will turn off the range hood, and after the range hood is turned off, the fan speed will gradually decrease to 0. At this point, the grease filter rotation speed is adjusted according to the fan speed to decrease until it reaches 0, avoiding unnecessary energy waste.

[0095] Combination Figure 9 As shown, this embodiment of the present disclosure provides a device for controlling a range hood, including a first control module 800 and a second control module 810. The first control module 800 is configured to control the rotation of the oil filter when the stove is on; the second control module 810 is configured to adjust the rotation speed of the oil filter according to the fan speed of the range hood.

[0096] The device for controlling a range hood provided in this embodiment of the invention facilitates the immediate operation of the oil filter after the stove is detected to be turned on, allowing the oil filter to immediately enter working mode to filter oil fumes. Then, the rotation speed of the oil filter is adjusted according to the fan speed of the range hood to keep the oil filter rotation speed matched with the fan speed, making the working mode of the oil filter more flexible, improving the filtration efficiency of oil fumes, and reducing air pollution.

[0097] Optionally, the second control module 810 includes a calculation unit 811. The calculation unit 811 is configured to determine the rotational speed of the oil network through calculation.

[0098] Optionally, the device for controlling the range hood further includes a detection module 820. The detection module 820 is configured to detect the working status of the cooktop and the speed of the fan.

[0099] Optionally, the detection module 820 includes a temperature detection unit 822. The temperature detection unit 822 is configured to detect the temperature of the stove and determine the working status of the stove based on the temperature. This method of determining whether the stove is in operation by its temperature is simple, convenient, and relatively accurate.

[0100] Optionally, the detection module 820 further includes a speed detection unit 821. The speed detection unit 821 is configured to detect the speed of the fan.

[0101] Combination Figure 10 As shown, this disclosure provides a device for controlling a range hood, including a processor 900 and a memory 901. Optionally, the device may further include a communication interface 902 and a bus 903. The processor 900, communication interface 902, and memory 901 can communicate with each other via the bus 903. The communication interface 902 can be used for information transmission. The processor 900 can call logical instructions in the memory 901 to execute the method for controlling the range hood described in the above embodiment.

[0102] Furthermore, the logic instructions in the aforementioned memory 901 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0103] The memory 901, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 900 executes functional applications and data processing by running the program instructions / modules stored in the memory 901, thereby implementing the method for controlling the range hood in the above embodiments.

[0104] The memory 901 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 901 may include high-speed random access memory and may also include non-volatile memory.

[0105] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling a range hood.

[0106] This disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the above-described method for controlling a range hood.

[0107] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0108] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0109] This disclosure provides a range hood that includes the aforementioned device for controlling the range hood.

[0110] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0111] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0112] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0113] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an oil fume exhauster, said oil fume exhauster comprising a water box and a rotatable oil screen, part of said oil screen being immersed in said water box and the rest being arranged in the flow path of the oil fume to filter the oil fume, a sawtooth structure being arranged at the circumference of the oil screen, a plurality of oil screens being arranged side by side, the sawtooth structures between the oil screens being engaged with each other, a heating device and an ultrasonic generator being arranged in said water box, a mounting groove for mounting the ultrasonic generator being arranged on the inner side of the water box, a circular mesh hole being arranged on said oil screen, the area ratio of said mesh hole to said oil screen being 0.5 to 0.8, characterized in that, Comprising: controlling the rotation of the oil screen when the stove is in an open state; and, adjusting the rotation speed of the oil screen according to the rotation speed of the fan of the range hood; the rotation speed of the oil screen and the rotation speed of the fan of the range hood satisfy the following relationship: ， wherein, is the rotational speed of the oil screen, is the rotational speed of the fan of the extractor hood, is a weighting factor, the weighting factor is determined depending on the oil smoke concentration.

2. The method of claim 1, wherein, the higher the rotation speed of the fan of the range hood, the higher the rotation speed of the oil screen.

3. The method according to claim 1 or 2, characterized in that, adjusting the rotation speed of the oil screen according to the rotation speed of the fan of the range hood, comprising: increasing the rotation speed of the oil screen when the rotation speed of the fan satisfies a first condition; and / or, decreasing the rotation speed of the oil screen or keeping the rotation speed of the oil screen unchanged when the rotation speed of the fan satisfies a second condition.

4. The method of claim 3, wherein, the first condition comprises: the rotation speed of the fan is greater than a first threshold.

5. The method of claim 3, wherein, when the rotation speed of the fan satisfies the second condition, decreasing the rotation speed of the oil screen when the rotation speed of the oil screen is greater than its minimum rotation speed; keeping the rotation speed of the oil screen unchanged when the rotation speed of the oil screen is equal to its minimum rotation speed.

6. The method of claim 3, wherein, the second condition comprises: the rotation speed of the fan is less than a second threshold.

7. An apparatus for controlling a range hood, comprising a processor and a memory having stored program instructions, wherein, The processor is configured to execute the program instructions when executed, to perform the method for controlling the range hood according to any one of claims 1 to 6.

8. A range hood characterized by, Comprising: a water box and a rotatable oil screen, part of the oil screen is immersed in the water box, the rest of the oil screen is arranged on the flow path of the oil fume to filter the oil fume, and the device for controlling the range hood according to claim 7.

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