Range hood gear setting method and device

Abstract

The invention relates to a range hood gear setting method and device which can be applied to the technical field of range hoods. The method comprises the steps that under the condition that an air duct of the range hood is in a fully-blocked state, the input current of the range hood is adjusted so that the back pressure of the range hood can be the preset maximum back pressure, and the first rotating speed and the first input current of the range hood are obtained; under the condition that the air duct is in the full-open state, the input current of the range hood is adjusted so that the air volume of the range hood can be the preset maximum air volume, and the second rotating speed and the second input current of the range hood are obtained; when the air duct is in the preset state, the input current of the range hood is adjusted, so that the range hood meets the preset smoke suction effect and the noise of the range hood is smaller than the preset noise, and the third rotating speed and the third input current of the range hood are obtained; generating a rotating speed array of the range hood, and generating an input current array of the range hood; and the rotating speed array and the input current array serve as gear setting parameters of the range hood and are stored in the range hood. By adopting the method, the noise of the range hood can be further reduced through examination.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a range hood gear setting method and device. Background Art

[0002] Range hoods are essential smoke exhaust appliances in the kitchen. With the development of range hoods, high back pressure and large air volume have become the hallmarks of high performance. In the evaluation of existing range hoods, they are usually evaluated at high back pressure when the back pressure environment of the range hood is fully blocked, and at high air volume when the back pressure environment of the range hood is fully open. In order to pass the assessment, each manufacturer usually simply increases the speed in the fully blocked state and the fully open state to achieve both target assessments at the same time. However, under the actual air duct resistance conditions, the high speed of traditional range hoods will also cause high noise. Therefore, how to pass the assessment while further reducing the noise of the range hood has become a problem to be solved. Summary of the Invention

[0003] The technical problem solved by the present application is to provide a range hood gear setting method that can both pass the test and further reduce the range hood noise.

[0004] The above technical problems are solved by the following technical solutions:

[0005] A range hood gear setting method, the method comprising:

[0006] When the air duct of the range hood is in a fully blocked state, adjusting the input current of the range hood so that the back pressure of the range hood is a preset maximum back pressure, and obtaining a first speed and a first input current of the range hood;

[0007] When the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood;

[0008] When the air duct is in a preset state, adjusting the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtaining a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state;

[0009] generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0010] The rotation speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood.

[0011] The range hood gear setting method described in the present application has the following beneficial effects compared with the background technology: by adjusting the input current of the range hood under different air duct states, obtaining the corresponding speed and input current, generating a speed array and an input current array, and storing the speed array and the input current array as the gear setting parameters of the range hood in the range hood, and controlling the operation of the range hood through the gear setting parameters, it is possible to effectively control the noise of the range hood to be lower than the preset noise through assessment, thereby achieving the goal of minimizing the working noise of the range hood while satisfying the smoking effect, thereby further reducing the noise of the range hood.

[0012] In one embodiment, the back pressure of the air duct is divided into N back pressure levels, where N is an integer greater than 3; the fully blocked state corresponds to the 1st back pressure level; the fully open state corresponds to the Nth back pressure level; the preset state is a semi-blocked state, and corresponds to the Cth back pressure level.

[0013] In one embodiment, C is an integer greater than or equal to N / 2-1 and less than or equal to N / 2+1.

[0014] In one embodiment, before the step of using the rotation speed array and the input current array as the gear setting parameters of the range hood and storing them in the range hood, the step further includes:

[0015] Setting the input current corresponding to each back pressure level from the first back pressure level to the Cth back pressure level so that the speed corresponding to each back pressure level from the first back pressure level to the Cth back pressure level gradually decreases, wherein the input current from the first back pressure level to the Cth back pressure level monotonically decreases;

[0016] The input current array is updated using the input current corresponding to each back pressure level obtained, and the rotational speed array is updated using the rotational speed corresponding to each back pressure level obtained.

[0017] In one embodiment, the decreasing trend of the rotational speed corresponding to each back pressure level from the first back pressure level to the Cth back pressure level is a linear decreasing trend.

[0018] In one embodiment, the step of setting the input current corresponding to each back pressure level from the first back pressure level to the Cth back pressure level includes:

[0019] Adjusting the back pressure of the air duct to each back pressure level from the first back pressure level to the Cth back pressure level;

[0020] When the back pressure level changes, the input current of the changed back pressure level is set.

[0021] In one embodiment, before the step of using the rotation speed array and the input current array as the gear setting parameters of the range hood and storing them in the range hood, the step further includes:

[0022] Setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level so that the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level gradually decreases, wherein the input current from the Cth back pressure level to the Nth back pressure level monotonically increases;

[0023] The input current array is updated using the input current corresponding to each back pressure level obtained, and the rotational speed array is updated using the rotational speed corresponding to each back pressure level obtained.

[0024] In one embodiment, the decreasing trend of the rotational speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear decreasing trend.

[0025] In one embodiment, the step of setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level includes:

[0026] Adjusting the back pressure of the air duct to each back pressure level from the Cth back pressure level to the Nth back pressure level;

[0027] When the back pressure level changes, the input current of the changed back pressure level is set.

[0028] The present application also provides a range hood gear setting device. The device comprises:

[0029] a first adjustment module, configured to adjust the input current of the range hood when the air duct of the range hood is in a fully blocked state so that the back pressure of the range hood reaches a preset maximum back pressure, and to obtain a first speed and a first input current of the range hood;

[0030] a second adjustment module, configured to adjust the input current of the range hood when the air duct is in a fully open state, so that the air volume of the range hood reaches a preset maximum air volume, and obtain a second rotational speed and a second input current of the range hood;

[0031] a third adjustment module, configured to adjust the input current of the range hood when the air duct is in a preset state, so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtain a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state;

[0032] an array generating module, configured to generate a rotation speed array of the range hood according to the first rotation speed, the second rotation speed, and the third rotation speed, and to generate an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0033] The array storage module is used to store the rotation speed array and the input current array as the gear setting parameters of the range hood in the range hood.

[0034] The present application also provides a range hood controller. The computer device includes a memory and a processor, the memory stores a computer program, and the processor executes the following steps when executing the computer program:

[0035] When the air duct of the range hood is in a fully blocked state, adjusting the input current of the range hood so that the back pressure of the range hood is a preset maximum back pressure, and obtaining a first speed and a first input current of the range hood;

[0036] When the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood;

[0037] When the air duct is in a preset state, adjusting the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtaining a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state;

[0038] generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0039] The rotation speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood.

[0040] The present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the following steps:

[0041] When the air duct of the range hood is in a fully blocked state, adjusting the input current of the range hood so that the back pressure of the range hood is a preset maximum back pressure, and obtaining a first speed and a first input current of the range hood;

[0042] When the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood;

[0043] When the air duct is in a preset state, adjusting the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtaining a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state;

[0044] generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0045] The rotation speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood.

[0046] The present application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the following steps:

[0047] When the air duct of the range hood is in a fully blocked state, adjusting the input current of the range hood so that the back pressure of the range hood is a preset maximum back pressure, and obtaining a first speed and a first input current of the range hood;

[0048] When the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood;

[0049] When the air duct is in a preset state, adjusting the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtaining a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state;

[0050] generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0051] The rotation speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 A flow chart of a method for setting range hood gear positions in one embodiment;

[0054] Figure 2 A flowchart illustrating the steps of updating the input current array and the speed array in one embodiment;

[0055] Figure 3 FIG. 1 is a diagram showing a corresponding relationship between rotational speed and level in one embodiment;

[0056] Figure 4 FIG. 1 is a diagram showing the correspondence between back pressure and level in one embodiment;

[0057] Figure 5 is a diagram showing the corresponding relationship between current and level in one embodiment;

[0058] Figure 6 This is a structural block diagram of a range hood gear setting device in one embodiment;

[0059] Figure 7 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0060] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0062] It will be understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor without departing from the scope of this application. The first resistor and the second resistor are both resistors, but they are not the same resistor.

[0063] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0064] It is understood that “at least one” refers to one or more, “a plurality” refers to two or more, and “at least a portion of an element” refers to a portion or all of an element.

[0065] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like 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. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0066] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0067] Range hoods are essential kitchen exhaust devices. With their development, high back pressure and high air volume have become hallmarks of high performance. Because flues can vary from fully open to completely blocked, range hoods are designed to accommodate a variety of flue conditions. For example, a stir-fry setting may have more than ten levels, each with a pre-set current and speed to suit different flue conditions.

[0068] Range hood evaluations typically assess both high back pressure and high air volume. High back pressure measures the back pressure when the air duct is completely blocked, while high air volume measures the air volume when the air duct is fully open. High speeds can achieve both goals simultaneously, but under actual air duct resistance, high speeds also result in high noise levels.

[0069] Applying a fixed AC voltage to the AC range hood and increasing the speed by changing the motor windings can achieve high back pressure and large air volume. Since the input AC voltage remains unchanged, high back pressure and large air volume are accompanied by high noise. By applying constant torque or constant power control through DC motor variable frequency control, although the efficiency is improved compared to AC motors, it will still cause high noise if it is not effectively controlled. The high noise of the range hood is not only caused by the structure of the range hood air duct, but also related to the excessively high motor speed and low efficiency at various back pressures in the duct. Therefore, how to achieve noise reduction in the range hood has become a problem to be solved.

[0070] In an exemplary embodiment, Figure 1 As shown, a method for setting the range hood gear position is provided. This embodiment uses the method applied to a range hood controller as an example for illustration; it is understood that the method can also be applied to a terminal or server, or to a system including a terminal and a server, and implemented through interaction between the terminal and the server. The terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablet computers, etc.; the server can be implemented as an independent server or a server cluster consisting of multiple servers. In this embodiment, the method includes the following steps:

[0071] In step S101 , when the air duct of the range hood is in a fully blocked state, the input current of the range hood is adjusted so that the back pressure of the range hood is a preset maximum back pressure, and a first rotation speed and a first input current of the range hood are obtained.

[0072] The air duct may be a channel in the range hood for exhausting smoke, for example, the air duct may be a channel in the range hood connecting the air inlet and the air outlet of the range hood.

[0073] The fully blocked state may be a state in which the air duct is completely blocked.

[0074] Among them, back pressure can be the resistance of the range hood air duct.

[0075] The preset maximum back pressure may be a preset maximum back pressure value. For example, the preset maximum back pressure may be a preset maximum back pressure value according to the air volume performance requirements of the range hood.

[0076] Among them, the first speed can be the speed of the range hood in a fully blocked state. For example, the first speed can be the speed of the range hood when the input current of the range hood is adjusted to make the back pressure of the range hood a preset maximum back pressure when the air duct is fully blocked.

[0077] Among them, the first input current can be the input current of the range hood in the fully blocked state. For example, the first input current can be the input current of the range hood when the input current of the range hood is adjusted in the fully blocked state of the air duct so that the back pressure of the range hood is the preset maximum back pressure.

[0078] Optionally, when the air duct of the range hood is in a fully blocked state, the range hood controller adjusts the input current of the range hood so that the back pressure of the range hood reaches a preset maximum back pressure value. At the same time, the speed and input current of the range hood at this time are obtained, which are recorded as the first speed and the first input current respectively.

[0079] Step S102 , when the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood.

[0080] The fully open state may be a state in which the air duct is fully open.

[0081] The preset maximum air volume may be a preset maximum air volume value. For example, the preset maximum air volume may be a preset maximum air volume value according to the air volume performance requirements of the range hood.

[0082] Among them, the second speed can be the speed of the range hood in the fully open state. For example, the second speed can be the speed of the range hood when the input current of the range hood is adjusted in the fully open state of the air duct so that the air volume of the range hood is the preset maximum air volume.

[0083] Among them, the second input current can be the input current of the range hood in the fully open state. For example, the second input current can be the input current of the range hood when the air duct is fully open to adjust the input current of the range hood so that the air volume of the range hood is the preset maximum air volume.

[0084] Optionally, when the air duct of the range hood is in a fully open state, the range hood controller adjusts the input current of the range hood so that the air volume of the range hood reaches a preset maximum air volume value. At the same time, the speed and input current of the range hood at this time are obtained, which are recorded as the second speed and the second input current respectively.

[0085] Step S103, when the air duct is in a preset state, adjust the input current of the range hood so that the range hood meets the preset smoking effect and the noise of the range hood is less than the preset noise, and obtain the third speed and third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state.

[0086] The preset state may be another state of the air duct, for example, the preset state may be a state in which the air duct is half-blocked.

[0087] Among them, the preset smoking effect can be a preset smoking effect, for example, the preset smoking effect can be a smoking effect preset according to the performance requirements of the range hood; for example, the preset smoking effect can be an effect in which the range hood does not leak smoke, wherein the range hood does not leak smoke means that most of the oil smoke rising in the wok can be sucked away without overflowing, all the oil flows into the oil cup, there is no oil leakage or flying oil, and the proportion of overflowing oil smoke to the total amount of oil smoke is less than 5%.

[0088] The preset noise may be a preset noise value, for example, the preset noise may be a noise value preset according to the performance requirements of the range hood.

[0089] Among them, the third speed can be the speed of the range hood under a preset state. For example, the third speed can be the speed of the range hood when the input current of the range hood is adjusted in a semi-blocked state of the air duct so that the range hood meets the preset smoking effect and the noise of the range hood is less than the preset noise.

[0090] Among them, the third input current can be the input current of the range hood in a preset state. For example, the third input current can be the input current of the range hood when the air duct is half-blocked so that the range hood meets the preset smoking effect and the noise of the range hood is less than the preset noise.

[0091] Optionally, when the air duct of the range hood is in a preset state (for example, a semi-blocked state), the range hood controller adjusts the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise value. At the same time, the speed and input current of the range hood at this time are obtained, which are recorded as the third speed and the third input current, respectively.

[0092] Step S104 , generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current.

[0093] The speed array may be an array consisting of a plurality of speed values ​​or speed parameters. For example, the speed array may be an array consisting of a first speed, a second speed, and a third speed.

[0094] The input current array may be an array consisting of a plurality of input current values ​​or input current parameters. For example, the input current array may be an array consisting of a first input current, a second input current, and a third input current.

[0095] Optionally, the range hood controller generates a speed array of the range hood based on the acquired first speed, second speed, and third speed, and generates an input current array of the range hood based on the acquired first input current, second input current, and third input current; constructs a correlation between the speed array and the input current array to determine the input current corresponding to each speed.

[0096] Step S105 , taking the rotation speed array and the input current array as the gear setting parameters of the range hood, and storing them in the range hood.

[0097] The gear setting parameters may be parameters for setting the gear of the range hood, for example, the gear setting parameters may be a speed array and an input current array.

[0098] Optionally, the range hood controller uses the generated speed array and input current array as the gear setting parameters of the range hood and stores them in the range hood's memory so that the corresponding speed and input current parameters can be called according to the current air duct status during actual use to optimize the performance of the range hood.

[0099] In the above-mentioned range hood gear setting method, when the air duct of the range hood is in a fully blocked state, the input current of the range hood is adjusted so that the back pressure of the range hood is a preset maximum back pressure, and the first speed and first input current of the range hood are obtained; when the air duct is in a fully open state, the input current of the range hood is adjusted so that the air volume of the range hood is a preset maximum air volume, and the second speed and second input current of the range hood are obtained; when the air duct is in a preset state, the input current of the range hood is adjusted so that the range hood meets the preset smoking effect and the noise of the range hood is less than the preset noise, and the third speed and third input current of the range hood are obtained, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state; a speed array of the range hood is generated according to the first speed, the second speed and the third speed, and an input current array of the range hood is generated according to the first input current, the second input current and the third input current; the speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood. This solution adjusts the input current of the range hood under different air duct conditions, obtains the corresponding speed and input current, generates a speed array and an input current array, and stores the speed array and input current array in the range hood as the gear setting parameters of the range hood. The operation of the range hood is controlled by the gear setting parameters, and the noise of the range hood can be effectively controlled to be lower than the preset noise through assessment, thereby achieving the goal of minimizing the operating noise of the range hood while satisfying the smoking effect, thereby further reducing the noise of the range hood.

[0100] In an exemplary embodiment, the back pressure of the air duct is divided into N back pressure levels, where N is an integer greater than 3; the fully blocked state corresponds to the 1st back pressure level; the fully open state corresponds to the Nth back pressure level; the preset state is a semi-blocked state, and corresponds to the Cth back pressure level.

[0101] The back pressure of the air duct may be the resistance of the range hood air duct. For example, the back pressure of the air duct may be divided into N back pressure levels, where N is an integer greater than 3.

[0102] Wherein, N may be the total number of backpressure levels.

[0103] Here, C may be the serial number of the back pressure level corresponding to the preset state, for example, C may be equal to N / 2±1.

[0104] The first back pressure level may be the first of N back pressure levels. For example, the first back pressure level may be the back pressure level corresponding to a fully blocked air duct state.

[0105] The Nth back pressure level may be the last one of the N back pressure levels. For example, the Nth back pressure level may be the back pressure level corresponding to the fully open state of the air duct.

[0106] The Cth back pressure level may be one of the N back pressure levels. For example, the Cth back pressure level may be the back pressure level corresponding to a semi-blocked state of the air duct.

[0107] The technical solution provided in this embodiment divides the back pressure of the air duct into N back pressure levels, where the fully blocked state corresponds to the 1st back pressure level, the fully open state corresponds to the Nth back pressure level, and the semi-blocked state corresponds to the Cth back pressure level. This is beneficial for setting corresponding current parameters and speed parameters for different air duct back pressure states, thereby helping to reduce the noise of the actual back pressure level segment while maintaining high back pressure and large air volume, thereby improving the full pressure efficiency.

[0108] In an exemplary embodiment, C is an integer greater than or equal to N / 2-1 and less than or equal to N / 2+1.

[0109] Here, C can be N / 2-1, N / 2 or N / 2+1.

[0110] The technical solution provided in this embodiment is conducive to setting the back pressure level corresponding to the semi-blocked state at an intermediate position, which is neither too close to the fully blocked state nor too close to the fully open state, by setting the back pressure level C corresponding to the semi-blocked state to an integer greater than or equal to N / 2-1 and less than or equal to N / 2+1. This is conducive to better reducing noise and improving full pressure efficiency in the corresponding back pressure level segment.

[0111] In an exemplary embodiment, Figure 2 As shown, before the step of storing the speed array and the input current array as the gear setting parameters of the range hood in the range hood, the step of updating the input current array and the speed array is also included, which specifically includes the following contents:

[0112] Step S201, setting the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level, so that the speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level gradually decreases, wherein the input current from the 1st back pressure level to the Cth back pressure level monotonically decreases;

[0113] In step S202 , the input current array is updated using the input current corresponding to each back pressure level obtained, and the rotational speed array is updated using the rotational speed corresponding to each back pressure level obtained.

[0114] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level; in the process of the back pressure of the range hood gradually increasing from the back pressure parameter corresponding to the Cth back pressure level to the back pressure parameter corresponding to the 1st back pressure level, the input current corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level is monotonically increased, so that the speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level gradually increases; the input current array is updated using the input current corresponding to each back pressure level obtained, and the speed array is updated using the speed corresponding to each back pressure level obtained.

[0115] The back pressure parameter may be a parameter that characterizes the back pressure of the range hood at a specific back pressure level. For example, the back pressure parameter may be a numerical value, a numerical range, or a qualitative description.

[0116] The back pressure parameter corresponding to the Cth back pressure level may be a parameter of the back pressure of the range hood at the Cth back pressure level.

[0117] The back pressure parameter corresponding to the first back pressure level may be a parameter of the back pressure of the range hood at the first back pressure level.

[0118] Among them, the input current corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level can be the input current corresponding to the Cth back pressure level, the C-1th back pressure level, ..., the 1st back pressure level.

[0119] The rotational speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level may be the rotational speed of the motor at the Cth back pressure level, the C-1th back pressure level, ..., the 1st back pressure level.

[0120] The input current array may be an array storing input currents at different back pressure levels.

[0121] The speed array may be an array storing motor speeds at different back pressure levels.

[0122] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level; in the process of the back pressure of the range hood gradually increasing from the back pressure parameter PC corresponding to the Cth back pressure level to the back pressure parameter P1 corresponding to the 1st back pressure level, the input current corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level is monotonically increased, so that the speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level gradually increases; the input currents I1, ..., IC-2, IC-1, IC corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level are used to update the input current array, and the speed array is updated using the speeds V1, ..., VC-2, VC-1, VC corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level.

[0123] For example, the range hood controller sets the back pressure parameter P1 corresponding to the 1st back pressure level, the back pressure parameter P2 corresponding to the 2nd back pressure level, ..., and the back pressure parameter PC corresponding to the Cth back pressure level, where P1>P2>...>PC; obtains the input current IC and speed VC corresponding to the Cth back pressure level, and then, as the back pressure of the range hood gradually increases from PC to P1, the input current is adjusted monotonically. For example, the input current corresponding to the C-1th back pressure level is adjusted to IC-1 (where the C-1th current IC-1> the Cth current IC), the input current corresponding to the C-2th back pressure level is adjusted to IC-2, ..., and the input current corresponding to the 1st back pressure level is adjusted to I1 (where I1> ...>IC-2>IC-1>IC), in the process of monotonically adjusting the input current, obtain the speed VC-1 corresponding to the C-1th backpressure level, the speed VC-2 corresponding to the C-2th backpressure level, ..., and the speed V1 corresponding to the 1st backpressure level, wherein V1>...>VC-2>VC-1>VC; use the obtained input currents I1, ..., IC-2, IC-1, IC corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level to update (for example, add to) the input current array, and use the obtained speeds V1, ..., VC-2, VC-1, VC corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level to update (for example, add to) the speed array.

[0124] The technical solution provided in this embodiment sets the back pressure parameters corresponding to the 1st back pressure level to the Cth back pressure level, and monotonically increases the input current corresponding to each back pressure level as the back pressure gradually increases, so that the speed corresponding to each back pressure level gradually increases. This is beneficial for accurately controlling the input current and speed under different back pressure levels, thereby helping to reduce noise and improve full pressure efficiency while ensuring high back pressure and large air volume of the range hood.

[0125] In an exemplary embodiment, the increasing trend of the rotation speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level is a linear upward trend.

[0126] The increase in the rotational speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level is a linear increase.

[0127] The technical solution provided in this embodiment sets the rotational speed corresponding to each back pressure level from the Cth back pressure level to the 1st back pressure level to a linear upward trend, which is beneficial for increasing the rotational speed at a uniform rate as the back pressure gradually increases, thereby facilitating more stable control of the operation of the range hood in the high back pressure section, avoiding noise problems caused by sudden changes in rotational speed, and achieving noise reduction of the range hood.

[0128] In an exemplary embodiment, the steps of setting the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level specifically include the following: adjusting the back pressure of the air duct to each back pressure level from the 1st back pressure level to the Cth back pressure level; when the back pressure level changes, setting the input current of the changed back pressure level.

[0129] Among them, each back pressure level from the 1st back pressure level to the Cth back pressure level can be the 1st back pressure level, the 2nd back pressure level...the C-1th back pressure level, the Cth back pressure level.

[0130] The input current of the changed back pressure level may include the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level.

[0131] Optionally, the range hood controller adjusts the back pressure of the air duct to various back pressure levels from the 1st back pressure level to the Cth back pressure level, which may include the 1st back pressure level, the 2nd back pressure level... the C-1th back pressure level and the Cth back pressure level, wherein each back pressure level from the 1st back pressure level to the Cth back pressure level may correspond to a back pressure parameter respectively; when the back pressure level changes, for example, when adjusting from the 1st back pressure level to the 2nd back pressure level, the input current of the changed back pressure level (such as the 2nd back pressure level) is set, thereby obtaining the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level in sequence.

[0132] The technical solution provided in this embodiment is conducive to accurately setting the input current by first determining the back pressure level of the air duct and then setting the input current corresponding to the back pressure level, thereby helping to reduce noise while ensuring high back pressure and large air volume of the range hood.

[0133] In an exemplary embodiment, the step of updating the input current array and the speed array is also included, which specifically includes the following contents: setting the back pressure parameters corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level; in the process of the back pressure of the range hood gradually decreasing from the back pressure parameter corresponding to the 1st back pressure level to the back pressure parameter corresponding to the Cth back pressure level, monotonically decreasing the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level, so that the speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level gradually decreases; using the input current corresponding to each back pressure level obtained to update the input current array, and using the speed corresponding to each back pressure level obtained to update the speed array.

[0134] Among them, the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level can be the input current value of the range hood at each back pressure level within the range of the 1st back pressure level to the Cth back pressure level. For example, the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level can be a current value between I1 and IC.

[0135] Among them, the speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level can be the speed value of the range hood at each back pressure level within the range of the 1st back pressure level to the Cth back pressure level. For example, the speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level can be a speed value between V1 and VC.

[0136] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level; in the process of the back pressure of the range hood gradually decreasing from the back pressure parameter P1 corresponding to the 1st back pressure level to the back pressure parameter PC corresponding to the Cth back pressure level, the input current corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level is monotonically decreased, so that the speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level gradually decreases; the input currents I1, ..., IC-2, IC-1, IC corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level are used to update the input current array, and the speed array is updated using the speeds V1, ..., VC-2, VC-1, VC corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level.

[0137] For example, the range hood controller sets the back pressure parameter P1 corresponding to the first back pressure level, the back pressure parameter P2 corresponding to the second back pressure level, ..., and the back pressure parameter PC corresponding to the Cth back pressure level, where P1>P2>...>PC; obtains the input current I1 and the speed V1 corresponding to the first back pressure level, and then, in the process of the back pressure of the range hood gradually decreasing from P1 to PC, adjusts the input current monotonically decreasingly, for example, adjusting the input current corresponding to the first back pressure level to I1, ..., adjusting the input current corresponding to the C-2th back pressure level to IC-2, and adjusting the input current corresponding to the C-1th back pressure level to IC-1 (where the C-1th current IC-1>the Cth current IC, and I1>...>IC-2> IC-1>IC), in the process of monotonically decreasingly adjusting the input current, obtain the speed V1 corresponding to the 1st backpressure level, ..., the speed VC-2 corresponding to the C-2th backpressure level, the speed VC-1 corresponding to the C-1th backpressure level, and the speed VC corresponding to the Cth backpressure level, where V1>...>VC-2>VC-1>VC; use the obtained input currents I1, ..., IC-2, IC-1, IC corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level to update (for example, add to) the input current array, and use the obtained speeds V1, ..., VC-2, VC-1, VC corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level to update (for example, add to) the speed array.

[0138] The technical solution provided in this embodiment sets the back pressure parameters corresponding to the 1st back pressure level to the Cth back pressure level, and monotonically decreases the input current corresponding to each back pressure level as the back pressure gradually decreases, so that the speed corresponding to each back pressure level gradually decreases. This is beneficial for accurately controlling the input current and speed under different back pressure levels, thereby helping to reduce noise and improve full pressure efficiency while ensuring high back pressure and large air volume of the range hood.

[0139] In an exemplary embodiment, the decreasing trend of the rotation speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level is a linear decreasing trend.

[0140] Among them, the decreasing trend of the rotational speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level is a linear downward trend.

[0141] The reduction in rotational speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level is a linear decrease.

[0142] The technical solution provided in this embodiment sets the rotational speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level to a linear downward trend, which is beneficial for decreasing the rotational speed at a uniform rate as the back pressure gradually decreases, thereby facilitating smoother control of the range hood operation in the high back pressure section, avoiding noise problems caused by sudden changes in rotational speed, and achieving noise reduction of the range hood.

[0143] In an exemplary embodiment, the speed array and the input current array are used as the gear setting parameters of the range hood. Before the step of storing them in the range hood, the step of updating the input current array and the speed array is also included, which specifically includes the following contents: setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level, so that the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level gradually decreases, wherein the input current from the Cth back pressure level to the Nth back pressure level monotonically increases; using the input current corresponding to each back pressure level obtained to update the input current array, and using the speed corresponding to each back pressure level obtained to update the speed array.

[0144] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level; in the process of the back pressure of the range hood gradually increasing from the back pressure parameter corresponding to the Nth back pressure level to the back pressure parameter corresponding to the Cth back pressure level, the input current corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level is monotonically decreased, so that the speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level gradually increases; the input current array is updated using the input current corresponding to each back pressure level obtained, and the speed array is updated using the speed corresponding to each back pressure level obtained.

[0145] Among them, the input current corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level can be the input current value of the range hood at each back pressure level within the range of the Nth back pressure level to the Cth back pressure level. For example, the input current corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level can be the current value between IN and IC.

[0146] Among them, the speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level can be the speed value of the range hood at each back pressure level within the range of the Nth back pressure level to the Cth back pressure level. For example, the speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level can be a speed value between VN and VC.

[0147] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level; in the process of the back pressure of the range hood gradually increasing from the back pressure parameter PN corresponding to the Nth back pressure level to the back pressure parameter PN corresponding to the Cth back pressure level, the input current corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level is monotonically decreased, so that the speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level gradually increases; the input current IN, ..., IC+2, IC+1, IC corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level is used to update the input current array, and the speed array is updated using the speed VN, ..., VC+2, VC+1, VC corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level.

[0148] For example, the range hood controller sets a backpressure parameter PC corresponding to the Cth backpressure level, a backpressure parameter PC+1 corresponding to the C+1th backpressure level, ..., and a backpressure parameter PN corresponding to the Nth backpressure level, where PC>PC+1>...>PN; obtains the input current IN and speed VN corresponding to the Nth backpressure level, and then, as the backpressure of the range hood gradually increases from PN to PC, adjusts the input current monotonically decreasingly. For example, the input current corresponding to the Nth backpressure level is adjusted to IN, ..., the input current corresponding to the C+2th backpressure level is adjusted to IC+2, and the input current corresponding to the C+1th backpressure level is adjusted to IC+1 (where the C+1th current IC+1> the Cth current IC, and IN>... >IC+2>IC+1>IC), in the process of monotonically decreasingly adjusting the input current, obtain the speed VN, ..., corresponding to the Nth backpressure level, the speed VC+2 corresponding to the C+2th backpressure level, the speed VC+1 corresponding to the C+1th backpressure level, and the speed VC corresponding to the Cth backpressure level, wherein VC>VC+1> ...>VN; use the obtained input currents IN, ..., IC+2, IC+1, IC corresponding to each backpressure level from the Nth backpressure level to the Cth backpressure level to update (for example, add to) the input current array, and use the obtained speeds VN, ..., VC+2, VC+1, VC corresponding to each backpressure level from the Nth backpressure level to the Cth backpressure level to update (for example, add to) the speed array.

[0149] The technical solution provided in this embodiment sets the back pressure parameters corresponding to the Cth back pressure level to the Nth back pressure level, and monotonically decreases the input current corresponding to each back pressure level as the back pressure gradually increases, so that the speed corresponding to each back pressure level gradually increases. This is beneficial for accurately controlling the input current and speed under different back pressure levels, thereby helping to reduce noise and improve full pressure efficiency while ensuring high back pressure and large air volume of the range hood.

[0150] In an exemplary embodiment, the increasing trend of the rotation speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level is a linear upward trend.

[0151] The increase in the rotational speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level is a linear increase.

[0152] The technical solution provided in this embodiment sets the rotational speed corresponding to each back pressure level from the Nth back pressure level to the Cth back pressure level to a linear upward trend, which is beneficial for increasing the rotational speed at a uniform rate as the back pressure gradually increases, thereby facilitating smoother control of the range hood operation in the low back pressure section, avoiding noise problems caused by sudden changes in rotational speed, and achieving noise reduction of the range hood.

[0153] In an exemplary embodiment, the step of updating the input current array and the speed array is also included, which specifically includes the following contents: setting the back pressure parameters corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level; in the process of the back pressure of the range hood gradually decreasing from the back pressure parameter corresponding to the Cth back pressure level to the back pressure parameter corresponding to the Nth back pressure level, monotonically increasing the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level, so that the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level gradually decreases; using the input current corresponding to each back pressure level obtained to update the input current array, and using the speed corresponding to each back pressure level obtained to update the speed array.

[0154] Among them, the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level can be the input current value of the range hood at each back pressure level within the range of the Cth back pressure level to the Nth back pressure level. For example, the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level can be a current value between IC and IN.

[0155] Among them, the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level can be the speed value of the range hood at each back pressure level within the range of the Cth back pressure level to the Nth back pressure level. For example, the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level can be a speed value between VC and VN.

[0156] Optionally, the range hood controller sets the back pressure parameters corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level; in the process of the back pressure of the range hood gradually decreasing from the back pressure parameter PC corresponding to the Cth back pressure level to the back pressure parameter PN corresponding to the Nth back pressure level, the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is monotonically increased, so that the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level gradually decreases; the input current IC, ..., IN corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is used to update the input current array, and the speed array is updated using the speed VC, ..., VN corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level.

[0157] For example, the range hood controller sets the back pressure parameter PC corresponding to the Cth back pressure level, the back pressure parameter PC+1 corresponding to the C+1th back pressure level, ..., and the back pressure parameter PN corresponding to the Nth back pressure level, where PC>PC+1>...>PN; obtains the input current IC and speed VC corresponding to the Cth back pressure level, and then, in the process of the back pressure of the range hood gradually decreasing from PC to PN, adjusts the input current monotonically, for example, adjusting the input current corresponding to the Cth back pressure level to IC, ..., and adjusting the input current corresponding to the Nth back pressure level to IN (where IN>…>IC), in the process of monotonically adjusting the input current, the speed VC corresponding to the Cth backpressure level, … the speed VN corresponding to the Nth backpressure level are obtained, where VC>…>VN; the input currents IC, …, IN corresponding to each backpressure level from the Cth backpressure level to the Nth backpressure level are used to update (for example, add to) the input current array, and the speeds VC, …, VN corresponding to each backpressure level from the Cth backpressure level to the Nth backpressure level are used to update (for example, add to) the speed array.

[0158] The technical solution provided in this embodiment sets the back pressure parameters corresponding to the Cth back pressure level to the Nth back pressure level, and monotonically increases the input current corresponding to each back pressure level as the back pressure gradually decreases, so that the speed corresponding to each back pressure level gradually decreases. This is beneficial for accurately controlling the input current and speed under different back pressure levels, thereby helping to reduce noise and improve full pressure efficiency while ensuring high back pressure and large air volume of the range hood.

[0159] In an exemplary embodiment, the decreasing trend of the rotation speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear decreasing trend.

[0160] The decreasing trend of the rotational speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear downward trend.

[0161] The reduction in rotational speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear decrease.

[0162] The technical solution provided in this embodiment sets the rotational speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level to a linear downward trend, which is beneficial for decreasing the rotational speed at a uniform rate as the back pressure gradually decreases, thereby facilitating smoother control of the range hood operation in the low back pressure section, avoiding noise problems caused by sudden changes in rotational speed, and achieving noise reduction of the range hood.

[0163] In an exemplary embodiment, the steps of setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level specifically include the following: adjusting the back pressure of the air duct to each back pressure level from the Cth back pressure level to the Nth back pressure level; when the back pressure level changes, setting the input current of the changed back pressure level.

[0164] Among them, each backpressure level from the Cth backpressure level to the Nth backpressure level can be the Cth backpressure level, the C+1th backpressure level...the N-1th backpressure level, and the Nth backpressure level.

[0165] The input current of the changed back pressure level may include the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level.

[0166] Optionally, the range hood controller adjusts the back pressure of the air duct to various back pressure levels from the Cth back pressure level to the Nth back pressure level, which may include the Cth back pressure level, the C+1th back pressure level... the N-1th back pressure level and the Nth back pressure level, wherein each back pressure level from the Cth back pressure level to the Nth back pressure level may correspond to a back pressure parameter respectively; when the back pressure level changes, for example, when it is adjusted from the Cth back pressure level to the C+1th back pressure level, the input current of the changed back pressure level (such as the C+1th back pressure level) is set, thereby obtaining the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level in sequence.

[0167] The technical solution provided in this embodiment is conducive to accurately setting the input current by first determining the back pressure level of the air duct and then setting the input current corresponding to the back pressure level, thereby helping to reduce noise while ensuring high back pressure and large air volume of the range hood.

[0168] The following is an application example to illustrate the range hood gear setting method provided in this application. This application example uses the method applied to a range hood controller as an example.

[0169] By grading flue back pressure, the motor current is increased at fully open or fully blocked levels to achieve high back pressure and large air volume requirements. At the back pressure level actually used by the user, the motor current is reduced to lower the speed at the corresponding back pressure. This improves full-pressure efficiency and reduces noise while maintaining air volume performance and smoking effect. By monitoring the current and speed data of the DC motor, the flue back pressure is identified and the motor current is adjusted accordingly, ultimately achieving noise reduction in the back pressure level range actually used by the user.

[0170] Implementation method:

[0171] 1. Divide the flue back pressure into N levels, S1, S2, ..., SN. The motor drive current for each back pressure level is labeled I1, I2, ..., IN, and the speed at the corresponding back pressure level and current is labeled V1, V2, ..., VN. The first level, S1, is the maximum back pressure level. The air duct is fully blocked. By setting the DC motor current I1, it is achieved in the range hood air volume performance parameter of the maximum back pressure P1, and the speed V1 and current I1 are recorded. SN is the back pressure level with a back pressure PN of 0. The air duct is fully open. By setting the DC motor current IN, it is achieved in the range hood air volume performance parameter of the maximum air volume, and the speed VN and current IN are recorded.

[0172] 2. Adjust the back pressure of the range hood duct to the back pressure level SC for the operating noise test. Simultaneously adjust the DC motor current to test the smoke extraction effect and operating noise. While maintaining the desired smoke extraction effect, reduce the DC motor current to IC. Record the motor speed as VC and the current as IC. This measure further reduces noise, improves total pressure efficiency, and meets the operating noise requirements for air volume performance. Here, C = N / 2 ± 1. Due to the requirements of high back pressure, large air volume, and low noise, V1 > VC, and VC > VN.

[0173] 3. Set the back pressure parameters for each level between SC and SN. From N to C, the back pressure gradually increases from PN to PC. Adjust the current parameters for each level so that the speed gradually increases from VN to VC, and record each level as the current parameter. The back pressure for each back pressure level gradually increases from PN to PC. The increasing relationship can be uniform, with a higher increase in the front and a lower increase in the back, or a lower increase in the front and a higher increase in the back. By adjusting different growth rate relationships, different air volume curves can be formed, resulting in different usage effects in actual use.

[0174] 4. Set the back pressure parameters for each level between S1 and SC. From C to 1, the back pressure gradually increases from PC to P1. Adjust the current parameters for each level so that the speed gradually increases from VC to V1. Record each level as the current parameter. The current increases monotonically from C to 1.

[0175] 5. Set the backpressure parameters for each level between the backpressure levels SN and SC. In the direction from level N to level C, the backpressure gradually increases from PN to PC. Adjust the current parameters for each level to make the rotational speed gradually increase from VN to VC for each level, and record the current parameters for each level. The current decreases monotonically from N to C.

[0176] Among them, due to the requirements of high backpressure, large air volume, and low noise, V1>VC, VC>VN, and I1>IC, IC<IN, thus forming a backpressure level from SN to S1, with the rotational speed data being monotonically increasing and the current data being a V-shaped data that first decreases and then increases. Through N current data and the corresponding N rotational speed data, two array data are finally formed. By controlling the operation of the DC motor through a control algorithm, the air volume performance requirements of high backpressure, large air volume, and low noise can be achieved. For example, referring to Figure 3 、 Figure 4 and Figure 5 , Figure 3 is a corresponding relationship diagram of rotational speed and level, Figure 4 is a corresponding relationship diagram of backpressure and level, Figure 5 is a corresponding relationship diagram of current and level. Among them, the level can be divided into 13 levels, namely level 1, level 2, level 3, level 4, level 5, level ⑥, level 7, level 8, level 9, level 10, level 11, level 12, and level 13.

[0177] The technical solution provided by this application example, while achieving high backpressure and large air volume of the smoke machine, accurately controls the current of the DC motor in the flue under various backpressure environments, especially in the backpressure environment section actually used by users, improves the total pressure efficiency of the smoke machine, reduces the rotational speed of the motor, and achieves the purpose of reducing the noise of the smoke machine.

[0178] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same moment, but can be executed at different moments. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0179] Based on the same inventive concept, the present application also provides a range hood position setting device for implementing the range hood position setting method described above. The solution provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more of the following embodiments of the range hood position setting device can be found in the above-mentioned limitations of the range hood position setting method and will not be further elaborated here.

[0180] In an exemplary embodiment, Figure 6 As shown, a range hood gear setting device is provided, and the range hood gear setting device 600 may include:

[0181] The first adjustment module 601 is configured to adjust the input current of the range hood when the air duct of the range hood is in a fully blocked state so that the back pressure of the range hood reaches a preset maximum back pressure, and obtain a first speed and a first input current of the range hood;

[0182] The second adjustment module 602 is configured to adjust the input current of the range hood when the air duct is in a fully open state so that the air volume of the range hood reaches a preset maximum air volume, and obtain a second rotation speed and a second input current of the range hood;

[0183] The third adjustment module 603 is configured to adjust the input current of the range hood when the air duct is in a preset state, so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise level, and obtain a third speed and a third input current of the range hood, wherein the back pressure in the preset state is between the back pressure in the fully blocked state and the back pressure in the fully open state;

[0184] An array generation module 604 is configured to generate a speed array of the range hood according to the first speed, the second speed, and the third speed, and to generate an input current array of the range hood according to the first input current, the second input current, and the third input current;

[0185] The array storage module 605 is used to store the speed array and the input current array as the gear setting parameters of the range hood in the range hood.

[0186] In an exemplary embodiment, the back pressure of the air duct is divided into N back pressure levels, where N is an integer greater than 3; the fully blocked state corresponds to the 1st back pressure level; the fully open state corresponds to the Nth back pressure level; the preset state is a semi-blocked state, and corresponds to the Cth back pressure level.

[0187] In an exemplary embodiment, C is an integer greater than or equal to N / 2-1 and less than or equal to N / 2+1.

[0188] In an exemplary embodiment, the device 600 also includes: a first update module, used to set the input current corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level, so that the speed corresponding to each backpressure level from the 1st backpressure level to the Cth backpressure level gradually decreases, wherein the input current from the 1st backpressure level to the Cth backpressure level is monotonically decreasing; using the obtained input current corresponding to each backpressure level to update the input current array, and using the obtained speed corresponding to each backpressure level to update the speed array.

[0189] In an exemplary embodiment, the decreasing trend of the rotation speed corresponding to each back pressure level from the 1st back pressure level to the Cth back pressure level is a linear decreasing trend.

[0190] In an exemplary embodiment, the first update module is further used to adjust the back pressure of the air duct to various back pressure levels from the 1st back pressure level to the Cth back pressure level; when the back pressure level changes, the input current of the changed back pressure level is set.

[0191] In an exemplary embodiment, the device 600 also includes: a second update module, used to set the input current corresponding to each backpressure level from the Cth backpressure level to the Nth backpressure level, so that the speed corresponding to each backpressure level from the Cth backpressure level to the Nth backpressure level gradually decreases, wherein the input current from the Cth backpressure level to the Nth backpressure level is monotonically increasing; using the obtained input current corresponding to each backpressure level to update the input current array, and using the obtained speed corresponding to each backpressure level to update the speed array.

[0192] In an exemplary embodiment, the decreasing trend of the rotation speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear decreasing trend.

[0193] In an exemplary embodiment, the second update module is further used to adjust the back pressure of the air duct to various back pressure levels from the Cth back pressure level to the Nth back pressure level; when the back pressure level changes, the input current of the changed back pressure level is set.

[0194] Each module in the range hood position setting device described above may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor in a computer device in hardware form, or may be stored in a computer device memory in software form, so that the processor can call and execute the corresponding operations of each module.

[0195] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal or a range hood controller. The internal structure diagram thereof may be as follows: Figure 7As shown. The computer device includes a processor, memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, memory, and input / output interface are connected via a system bus, while the communication interface, display unit, and input device are connected to the system bus via the input / output interface. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via wired or wireless means, and the wireless means can be achieved via Wi-Fi, mobile cellular networks, NFC (near-field communication), or other technologies. When executed by the processor, the computer program implements a range hood gear setting method. The display unit of the computer device is used to produce a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0196] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0197] In an exemplary embodiment, a range hood controller is further provided, comprising a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0198] In an exemplary embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0199] In an exemplary embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0200] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0201] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0202] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A range hood gear setting method, characterized in that: The method comprises: When the air duct of the range hood is in a fully blocked state, adjusting the input current of the range hood so that the back pressure of the range hood is a preset maximum back pressure, and obtaining a first speed and a first input current of the range hood; When the air duct is in a fully open state, adjusting the input current of the range hood so that the air volume of the range hood is a preset maximum air volume, and obtaining a second rotation speed and a second input current of the range hood; When the air duct is in a preset state, adjusting the input current of the range hood so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtaining a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state; generating a speed array of the range hood according to the first speed, the second speed, and the third speed, and generating an input current array of the range hood according to the first input current, the second input current, and the third input current; The rotation speed array and the input current array are used as the gear setting parameters of the range hood and stored in the range hood.

2. The method according to claim 1, characterized in that The back pressure of the air duct is divided into N back pressure levels, where N is an integer greater than 3; the fully blocked state corresponds to the 1st back pressure level; the fully open state corresponds to the Nth back pressure level; the preset state is a semi-blocked state, and corresponds to the Cth back pressure level.

3. The method according to claim 2, characterized in that C is an integer greater than or equal to N / 2-1 and less than or equal to N / 2+1.

4. The method according to claim 2, characterized in that Before the step of using the rotation speed array and the input current array as the gear setting parameters of the range hood and storing them in the range hood, the step further includes: Setting the input current corresponding to each back pressure level from the first back pressure level to the Cth back pressure level so that the speed corresponding to each back pressure level from the first back pressure level to the Cth back pressure level gradually decreases, wherein the input current from the first back pressure level to the Cth back pressure level monotonically decreases; The input current array is updated using the input current corresponding to each back pressure level obtained, and the rotational speed array is updated using the rotational speed corresponding to each back pressure level obtained.

5. The method according to claim 4, characterized in that The decreasing trend of the rotation speed corresponding to each back pressure level from the first back pressure level to the Cth back pressure level is a linear downward trend.

6. The method according to claim 4, characterized in that The step of setting the input current corresponding to each back pressure level from the first back pressure level to the Cth back pressure level includes: Adjusting the back pressure of the air duct to each back pressure level from the first back pressure level to the Cth back pressure level; When the back pressure level changes, an input current of the changed back pressure level is set.

7. The method according to claim 2, characterized in that Before the step of using the rotation speed array and the input current array as the gear setting parameters of the range hood and storing them in the range hood, the step further includes: Setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level so that the speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level gradually decreases, wherein the input current from the Cth back pressure level to the Nth back pressure level monotonically increases; The input current array is updated using the input current corresponding to each back pressure level obtained, and the rotational speed array is updated using the rotational speed corresponding to each back pressure level obtained.

8. The method according to claim 7, characterized in that The decreasing trend of the rotation speed corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level is a linear downward trend.

9. The method according to claim 7, characterized in that The step of setting the input current corresponding to each back pressure level from the Cth back pressure level to the Nth back pressure level includes: Adjusting the back pressure of the air duct to each back pressure level from the Cth back pressure level to the Nth back pressure level; When the back pressure level changes, an input current of the changed back pressure level is set.

10. A range hood gear setting device, characterized in that: The device comprises: a first adjustment module, configured to adjust the input current of the range hood when the air duct of the range hood is in a fully blocked state so that the back pressure of the range hood reaches a preset maximum back pressure, and to obtain a first speed and a first input current of the range hood; a second adjustment module, configured to adjust the input current of the range hood when the air duct is in a fully open state, so that the air volume of the range hood reaches a preset maximum air volume, and obtain a second rotational speed and a second input current of the range hood; a third adjustment module, configured to adjust the input current of the range hood when the air duct is in a preset state, so that the range hood meets a preset smoking effect and the noise of the range hood is less than a preset noise, and obtain a third speed and a third input current of the range hood, wherein the back pressure of the preset state is between the back pressure of the fully blocked state and the back pressure of the fully open state; an array generating module, configured to generate a rotation speed array of the range hood according to the first rotation speed, the second rotation speed, and the third rotation speed, and to generate an input current array of the range hood according to the first input current, the second input current, and the third input current; The array storage module is used to store the rotation speed array and the input current array as the gear setting parameters of the range hood in the range hood.

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