Range hood control method, apparatus, and device, and storage medium

Abstract

The present application relates to the technical field of electric appliances, and specifically relates to a range hood control method, apparatus, and device, and a storage medium. The present application is applied to a range hood having a smoke collecting cavity capable of lifting and lowering. The method comprises: measuring the rotation speed of a fan of the range hood; and if the rotation speed of the fan is greater than a fan rotation speed threshold value corresponding to a current exhaust volume of the range hood, reducing the exhaust volume of the range hood, and controlling the smoke collecting cavity of the range hood to lower. According to the present application, when the rotation speed of the fan of the range hood is relatively high, the rotation speed of the range hood can be reduced by means of reducing the exhaust volume of the range hood, and the lowering of the smoke collecting cavity allows a negative pressure region at an air inlet of the smoke collecting cavity to move downwards, thereby improving the grease and smoke extraction effect and avoiding a decrease in grease and smoke extraction capacity due to the reduction in exhaust volume.

Description

Range hood control method, device, equipment, and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 27, 2023, with application number 202311271097.5 and application name “A range hood control method, device, equipment, and storage medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of electrical appliance technology, and specifically relates to a range hood control method, device, equipment, and storage medium. Background Art

[0003] The range hood is an indispensable appliance in the kitchen. Its working principle is to create negative pressure at the air inlet of the smoke collection chamber through the high-speed rotation of the fan, thereby sucking the oil smoke out of the smoke collection chamber.

[0004] Due to the high fan speed, the range hood makes loud noise during operation. When the exhaust volume of the range hood is constant, the fan speed may be too high due to different working conditions, which further aggravates the noise of the range hood.

[0005] The noise of the range hood seriously affects the user experience. Therefore, it is necessary to solve the problem of high noise when the fan speed of the existing range hood is high, so as to improve the user experience.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a range hood control method, device, equipment, and storage medium to solve the problem in the prior art that the range hood fan generates high noise when the speed is too high.

[0008] In a first aspect, an embodiment of the present application provides a range hood control method, which is applied to a range hood with a liftable smoke collecting chamber, the method comprising:

[0009] detecting a fan speed of the range hood;

[0010] If the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

[0011] In the above preferred technical solution of the range hood control method, reducing the exhaust volume of the range hood includes:

[0012] Obtaining the current air volume level of the range hood;

[0013] Determining a target air volume level according to the current air volume level;

[0014] The exhaust volume of the range hood is adjusted to the exhaust volume corresponding to the target air volume level.

[0015] In the above-mentioned preferred technical solution of the range hood control method, determining the target air volume level according to the current air volume level includes:

[0016] The air volume level that is one level lower than the current air volume level is determined as the target air volume level.

[0017] In the above preferred technical solution of the range hood control method, controlling the smoke collecting chamber of the range hood to descend includes:

[0018] determining a target descent height of the smoke collecting chamber according to the current air volume level and the target air volume level;

[0019] The smoke collecting chamber is controlled to descend to the target descending height.

[0020] In the above preferred technical solution of the range hood control method, before detecting the range hood fan speed, the method further includes:

[0021] detecting the oil smoke concentration at the range hood;

[0022] The descending height of the smoke collecting chamber is adjusted according to the oil smoke concentration.

[0023] In the above-mentioned preferred technical solution of the range hood control method, adjusting the descending height of the smoke collecting chamber according to the oil smoke concentration includes:

[0024] The higher the upper limit of the concentration range in which the oil smoke concentration is located, the greater the descending height of the smoke collecting chamber.

[0025] In the above-mentioned preferred technical solution of the range hood control method, a smoke collecting plate is provided at the air inlet of the smoke collecting chamber, and the method further comprises:

[0026] The opening angle of the smoke collecting plate is adjusted according to the descending height of the smoke collecting chamber. The greater the descending height of the smoke collecting chamber, the smaller the opening angle of the smoke collecting plate.

[0027] In a second aspect, an embodiment of the present application provides a range hood control device, the device comprising:

[0028] A detection module, used for detecting the fan speed of the range hood;

[0029] Control module for:

[0030] The fan speed of the range hood is obtained from the detection module. If the fan speed is greater than a fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

[0031] In a third aspect, an embodiment of the present application provides a range hood control device, the device comprising:

[0032] Memory, processor;

[0033] The memory is used to store computer programs;

[0034] The processor is used to execute the computer program stored in the memory to implement the above-mentioned range hood control method.

[0035] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a computer program is stored; the computer program is used to implement the above-mentioned range hood control method.

[0036] In a fifth aspect, an embodiment of the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the range hood control method as described in any one of the above items.

[0037] The embodiments of the present application provide a range hood control method, device, equipment, and storage medium. When the range hood fan speed is too high, the range hood speed can be reduced by reducing the exhaust volume of the range hood. The lowering of the smoke collecting chamber can cause the negative pressure area at the air inlet of the smoke collecting chamber to move downward, thereby improving the oil fume extraction effect and avoiding the reduction of the oil fume extraction ability due to the reduction of the exhaust volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG1 is a flow chart of a range hood control method provided by an embodiment of the present application;

[0039] FIG2 is a flow chart of a method for reducing the exhaust volume of a range hood provided in an embodiment of the present application;

[0040] FIG3 is a flow chart of a method for controlling the descent of a smoke collecting chamber of a range hood provided in an embodiment of the present application;

[0041] FIG4 is a flow chart of another range hood control method provided by an embodiment of the present application;

[0042] FIG5 is a schematic diagram of a range hood control device provided in an embodiment of the present application;

[0043] FIG6 is a schematic diagram of a range hood control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. When the description below refers to the drawings, identical numbers in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0045] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0046] In the related art, the range hood is provided with a smoke collecting chamber, and the air inlet of the smoke collecting chamber faces the stove. When the fan in the range hood rotates at high speed, the outside air is sucked in through the smoke collecting chamber, so that negative pressure appears at the air inlet of the smoke collecting chamber, thereby sucking the oil smoke away from the smoke collecting chamber.

[0047] Due to the high fan speed, the range hood makes loud noise during operation. When the exhaust volume of the range hood is constant, the fan speed may be too high due to different working conditions, which further aggravates the noise of the range hood.

[0048] In order to solve the problem of loud noise when the fan speed of the range hood is too high in the related technology, the technical concept of this application is: to detect the fan speed of the range hood, and when the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, reduce the exhaust volume of the range hood, and at the same time control the smoke collection chamber of the range hood to descend.

[0049] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0050] In one possible embodiment of the present application, a range hood control method is provided. The method is applied to a control unit of a range hood with a liftable smoke collection chamber. FIG1 is a flow chart of a range hood control method provided in an embodiment of the present application. As shown in FIG1 , the method includes:

[0051] S101, detecting the range hood fan speed;

[0052] Specifically, a speed sensor may be installed at the range hood fan, and the control unit controls the speed sensor to detect the fan speed.

[0053] S102: If the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

[0054] It should be noted that the smoke collecting chamber of the range hood in this application can be controlled by the control unit to move up and down. This is achieved by installing a lifting motor inside the range hood, and the control unit controls the operation of the lifting motor, so that the lifting motor drives the smoke collecting chamber to move up and down.

[0055] Due to different working conditions, the same exhaust volume of the range hood may correspond to different fan speeds. If the current fan speed exceeds the fan speed threshold corresponding to the current exhaust volume, it means that the fan speed is too high. For example, if the exhaust volume is 10m 3 / min, the corresponding fan speed threshold is 1400r / min, and the exhaust volume is 8m 3 / min, the corresponding fan speed threshold is 1200r / min.

[0056] Fan speed thresholds corresponding to different exhaust volumes can be pre-stored in the storage module of the range hood control unit. When the control unit detects that the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the range hood is controlled to reduce the exhaust volume. When the exhaust volume of the range hood decreases, the fan speed will inevitably decrease, thereby reducing the fan noise.

[0057] After reducing the exhaust volume, the range hood's ability to absorb oil fumes also decreases. In order to avoid affecting the range hood's ability to absorb oil fumes, the control unit controls the smoke collection chamber to descend, so that the negative pressure area at the air inlet of the smoke collection chamber is closer to the stove oil fume, thereby improving the range hood's ability to absorb oil fumes.

[0058] The technical effect of this embodiment is that when the range hood fan speed is too high, the range hood speed can be reduced by reducing the range hood exhaust volume. At the same time, the range hood fan noise is reduced by lowering the smoke collecting chamber without affecting the range hood's oil smoke suction capacity.

[0059] In one possible embodiment of the present application, a method for reducing the exhaust volume of a range hood is provided. FIG2 is a flow chart of a method for reducing the exhaust volume of a range hood provided in an embodiment of the present application. As shown in FIG2 , the method includes:

[0060] S201, obtaining the current air volume level of the range hood;

[0061] S202, determining a target air volume level according to the current air volume level;

[0062] Optionally, determining a target air volume level according to the current air volume level includes:

[0063] The air volume level that is one level lower than the current air volume level is determined as the target air volume level.

[0064] In this step, the target air volume gear is one gear lower than the current air volume gear, so that the fan speed is reduced while the range hood's oil fume extraction capacity will not be reduced too much. For example, when the range hood air volume gear is divided into three gears, namely high speed, medium speed and low speed, the exhaust volume corresponding to the high speed gear is 10m 3 / min, the exhaust volume corresponding to the medium speed gear is 8m 3 / min, the exhaust volume corresponding to the low speed gear is 6m 3 / min, when the current air volume gear is high speed gear, the target air volume gear is medium speed gear.

[0065] S203: Adjust the exhaust volume of the range hood to the exhaust volume corresponding to the target air volume level.

[0066] The technical effect of this embodiment is that by reducing the current air volume level of the range hood to the target air volume level of the first level, the exhaust volume of the range hood is reduced, thereby reducing the fan noise of the range hood.

[0067] In one possible embodiment of the present application, a method for controlling the descent of a smoke collecting chamber of a range hood is provided. FIG3 is a flow chart of a method for controlling the descent of a smoke collecting chamber of a range hood provided in an embodiment of the present application. As shown in FIG3 , the method includes:

[0068] S301, determining a target descent height of the smoke collecting chamber according to the current air volume level and the target air volume level;

[0069] Optionally, the target descent height can be calculated based on the difference in exhaust volume between the current air volume level and the target air volume level. Based on this exhaust volume difference, the extent of the reduction in the range hood's fume extraction capacity can be determined. The target height of the smoke chamber can then be determined based on the impact of different descent heights on the fume extraction capacity. Furthermore, the target descent heights for the smoke chamber corresponding to different exhaust volume differences can be pre-stored in the storage module of the range hood control unit.

[0070] Optionally, the exhaust volume difference may be used as an input to a PID control algorithm, and the output of the PID control algorithm is a target descent height.

[0071] S302: Control the smoke collecting chamber to descend to a target descent height.

[0072] The technical effect of this embodiment is to determine the target descent height of the smoke collecting chamber according to the current air volume level and the target air volume level and control the smoke collecting chamber to descend to the target descent height, thereby avoiding the impact of reduced exhaust volume on the oil fume absorption capacity.

[0073] In one possible embodiment of the present application, another range hood control method is provided. FIG4 is a flow chart of another range hood control method provided in an embodiment of the present application. As shown in FIG4 , the method includes:

[0074] S401, detecting the oil smoke concentration at the range hood;

[0075] Optionally, a smoke sensor may be installed under the range hood, and the control unit controls the smoke sensor to detect the oil smoke concentration at the range hood.

[0076] S402, adjusting the descending height of the smoke collecting chamber according to the concentration of the oil smoke;

[0077] Optionally, adjust the height of the smoke collecting chamber according to the smoke concentration, including:

[0078] The higher the upper limit value of the concentration range in which the oil smoke concentration is located, the greater the height of the smoke collecting chamber will be lowered.

[0079] For example:

[0080] When the oil smoke concentration is ≤0.5ppm, the smoke collecting chamber can be lowered to 10cm;

[0081] When the oil smoke concentration is 0.6ppm<≤1.5ppm, the smoke chamber can be lowered to 15cm;

[0082] When the oil smoke concentration is 1.6ppm<≤3.0ppm, the smoke chamber can be lowered to 20cm;

[0083] When the oil smoke concentration is 3.1ppm<the oil smoke concentration, the smoke collecting chamber can be lowered to 25cm.

[0084] By lowering the smoke collecting chamber, the negative pressure area at the air inlet of the smoke collecting chamber can be brought closer to the oil smoke, thereby enhancing the oil smoke extraction capability. In this embodiment, the higher the oil smoke concentration, the higher the height of the smoke collecting chamber is lowered, and the stronger the oil smoke extraction capability of the range hood is, and the better the oil smoke is extracted.

[0085] In addition, when it is detected that the oil smoke concentration is decreasing, the smoke collecting chamber can be raised according to the corresponding relationship between the oil smoke concentration and the height of the smoke collecting chamber being lowered, so that the user can obtain a better cooking field of view.

[0086] S403, detecting the range hood fan speed;

[0087] S404: If the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

[0088] Based on the above embodiment, in a possible embodiment of the present application, a smoke collecting plate is provided at the air inlet of the smoke collecting chamber, and the method further includes:

[0089] The opening angle of the smoke collecting plate is adjusted according to the descending height of the smoke collecting chamber. The greater the descending height of the smoke collecting chamber, the smaller the opening angle of the smoke collecting plate.

[0090] The smoke trap is a flap at the air inlet of the range hood's smoke collection chamber, designed to block and reduce oil smoke. Since oil smoke originates from the cookware and gradually diffuses upward, the closer to the source of the smoke, the less suction range is needed. Therefore, the smaller the opening angle of the smoke trap, the smaller the suction range can enhance the range hood's suction power and improve its ability to absorb oil smoke.

[0091] The corresponding relationship between oil smoke concentration, smoke chamber lifting height, and smoke collecting plate opening angle can be shown in the following table:

[0092] In one possible embodiment of the present application, a range hood control device is provided. FIG5 is a schematic diagram of a range hood control device provided in an embodiment of the present application. As shown in FIG5 , the device 50 includes: a detection module 501 and a control module 502;

[0093] Detection module 501, used to detect the speed of the range hood fan;

[0094] The control module 502 is configured to:

[0095] The range hood fan speed is obtained from the detection module 501. If the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

[0096] In one possible embodiment of the present application, a range hood control device is provided. FIG6 is a schematic diagram of a range hood control device provided in an embodiment of the present application. As shown in FIG6 , the device 60 includes:

[0097] Memory 601, processor 602, interactive interface 603, memory 601, processor 602, interactive interface 603 are connected via bus 604;

[0098] The memory 601 is used to store computer programs;

[0099] The processor 602 is configured to execute the computer program stored in the memory 601 to implement the above-mentioned range hood control method.

[0100] The specific implementation process of the processor 602 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0101] In the embodiment shown in FIG. 6 , it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), or application-specific integrated circuits (ASICs). A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly executed by a hardware processor or by a combination of hardware and software modules within the processor.

[0102] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory.

[0103] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to a single bus or type of bus.

[0104] In a possible embodiment of the present application, a readable storage medium is provided, on which a computer program is stored; the computer program is used to implement the above-mentioned range hood control method.

[0105] An embodiment of the present application further provides a computer program product, which includes instructions. When the instructions are executed, the computer executes the technical solution in any of the aforementioned method embodiments.

[0106] The computer-readable storage medium mentioned above can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0107] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in a device as discrete components.

[0108] The division of units described above is merely a division of logical functions. In actual implementation, other divisions may be employed. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, any coupling or direct coupling or communication connection shown or discussed between units may be an indirect coupling or communication connection via an interface, device, or unit, and may be electrical, mechanical, or other.

[0109] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0110] In addition, each functional unit in each embodiment of the present invention 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.

[0111] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0112] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0113] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A range hood control method, characterized in that: Applicable to a range hood with a liftable smoke collecting chamber, the method comprises: Detecting the fan speed of the range hood; If the fan speed is greater than the fan speed threshold corresponding to the current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

2. The method according to claim 1, characterized in that The reducing the exhaust volume of the range hood comprises: Obtaining the current air volume level of the range hood; Determining a target air volume level according to the current air volume level; The exhaust volume of the range hood is adjusted to the exhaust volume corresponding to the target air volume level.

3. The method according to claim 2, characterized in that The step of determining the target air volume level according to the current air volume level comprises: The air volume level that is one level lower than the current air volume level is determined as the target air volume level.

4. The method according to claim 2, characterized in that: The step of controlling the smoke collecting chamber of the range hood to descend comprises: Determining a target descent height of the smoke collecting chamber according to the current air volume level and the target air volume level; The smoke collecting chamber is controlled to descend to the target descending height.

5. The method according to claim 1, characterized in that Before detecting the range hood fan speed, the method further includes: Detecting the oil fume concentration at the range hood; The descending height of the smoke collecting chamber is adjusted according to the oil smoke concentration.

6. The method according to claim 5, characterized in that The step of adjusting the descending height of the smoke collecting chamber according to the smoke concentration includes: The higher the upper limit of the concentration range in which the oil smoke concentration is located, the greater the descending height of the smoke collecting chamber.

7. The method according to any one of claims 1 to 6, characterized in that: A smoke collecting plate is provided at the air inlet of the smoke collecting chamber, and the method further comprises: According to the descending height of the smoke collecting chamber, the opening angle of the smoke collecting plate is adjusted. The greater the descending height of the smoke collecting chamber is, the smaller the opening angle of the smoke collecting plate is.

8. A range hood control device, characterized in that: The device comprises: A detection module, used for detecting the fan speed of the range hood; Control module for: The fan speed of the range hood is obtained from the detection module. If the fan speed is greater than a fan speed threshold corresponding to a current exhaust volume of the range hood, the exhaust volume of the range hood is reduced, and the smoke collecting chamber of the range hood is controlled to descend.

9. A range hood control device, characterized in that: The device comprises: Memory, processor; The memory is used to store computer programs; The processor is used to execute the computer program stored in the memory to implement the range hood control method according to any one of claims 1 to 7.

10. A readable storage medium, characterized in that: The readable storage medium stores a computer program; the computer program is used to implement the range hood control method according to any one of claims 1 to 7.

Images