CN110220232B - Control method for wind speed gear of range hood and range hood - Google Patents
Control method for wind speed gear of range hood and range hood Download PDFInfo
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- CN110220232B CN110220232B CN201910645265.XA CN201910645265A CN110220232B CN 110220232 B CN110220232 B CN 110220232B CN 201910645265 A CN201910645265 A CN 201910645265A CN 110220232 B CN110220232 B CN 110220232B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The invention provides a control method of a range hood wind speed gear and a range hood, relating to the technical field of range hoods and comprising the following steps: detecting the current smoke concentration Ca of the central smoke inlet and the current smoke concentration Cb of the lateral smoke inlet; and controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the side smoke inlet, a first threshold value C1 and a second threshold value C2. The control method of the air speed gear of the range hood and the range hood are simple in judgment method, the air speed gear of the range hood is reasonably controlled by judging the smoke concentration and the preset threshold value, the autonomous control capability of the range hood is improved, and the condition that smoke overflows to pollute the indoor environment when the smoke amount is large and the air gear is small is prevented; and prevent the waste of electric energy when the smoke volume is small and the wind gear is large.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a range hood and a control method for a wind speed gear of the range hood.
Background
Along with the improvement of the life quality of people, the requirements of people on the functions of kitchen appliances and the requirements of kitchen environment are stricter and stricter, especially the requirements on range hoods. The existing range hood smoke inlet is mostly positioned in the center of a smoke collecting plate of the range hood or right above a gas stove, the amount of the oil smoke is limited at the same time, and the excessive smoke can be diffused to the periphery to influence the indoor air and the environmental quality.
On the other hand, most of the existing range hoods cannot automatically control the air volume, and users can have the condition that the wind gear of the range hood is inconvenient to adjust when in use; and when the smoke amount is small, the range hood still operates in a high wind gear, which causes the waste of electric energy.
Therefore, the existing range hood needs to be optimally designed.
Disclosure of Invention
The invention solves the problems that the existing range hood can not automatically adjust the wind speed gear, and the smoke overflows to pollute the indoor environment when the smoke amount is large and the wind gear is small; when the smoke amount is small and the wind level is large, the waste of electric energy is caused.
In order to solve the above problems, the present invention provides a range hood, which includes a central smoke inlet and a lateral smoke inlet, wherein the central smoke inlet is located at the center of a smoke collecting plate, and the lateral smoke inlet is located at the side of the smoke collecting plate. Through set up into the mouth simultaneously in smoke collecting plate central authorities and side position, can be better absorb the oil smoke.
Optionally, there are a plurality of the side smoke inlets, and the distance from the side smoke inlets to the central smoke inlet is equal. Can carry out further absorption to the side oil smoke of a plurality of directions of smoke collecting plate, prevent that smog from revealing from the side.
Optionally, the apparatus further comprises a control device, the control device comprising:
the detection unit is used for detecting the current smoke concentration Ca of the central smoke inlet and the current smoke concentration Cb of the side smoke inlet;
the control unit is used for controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the lateral smoke inlet, the first threshold C1 and the second threshold C2, the control device is simple and easy to implement, the wind speed gear of the range hood is controlled more reasonably by judging the smoke concentration and the preset threshold, the autonomous control capability of the range hood is improved, and the smoke overflow and the indoor environment pollution caused by the smoke overflow when the smoke amount is large and the wind gear is small are prevented; and prevent the waste of electric energy when the smoke volume is small and the wind gear is large.
Optionally, the detection unit includes a plurality of smoke detection sensors, the smoke detection sensors are respectively disposed at the central smoke inlet (1) and the lateral smoke inlets (2), and the detection is more accurate by monitoring the lateral concentration Cb through the plurality of smoke sensors.
Optionally, the control unit is further configured to calculate a maximum side smoke inlet smoke concentration Cbmax in the plurality of side smoke inlet smoke concentrations Cb, and control the windshield of the range hood more accurately according to the maximum concentration.
The invention also provides a control method of the wind speed gear of the range hood, which comprises the following steps:
detecting the current smoke concentration Ca of the central smoke inlet and the current smoke concentration Cb of the lateral smoke inlet;
and controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the side smoke inlet, a first threshold value C1 and a second threshold value C2.
The judgment method is simple, and the wind speed gear of the range hood is more reasonably controlled by judging the smoke concentration and the preset threshold value, so that the autonomous control capability of the range hood is improved, and the smoke overflow and indoor environment pollution caused by large smoke amount and small wind gear are prevented; and prevent the waste of electric energy when the smoke volume is small and the wind gear is large.
Optionally, the number of the smoke concentrations Cb of the side smoke inlet is multiple, the maximum smoke concentration Cbmax of the side smoke inlet in the multiple smoke concentrations Cb of the side smoke inlet is calculated, and according to the smoke concentration Ca of the central smoke inlet, the maximum smoke concentration Cbmax of the side smoke inlet, the first threshold C1 and the second threshold C2, the current wind speed gear of the range hood is controlled, so that the smoke is detected more accurately, and the self-control process is more reasonable and accurate.
Optionally, after detecting and calculating the central smoke inlet smoke concentration Ca and the maximum lateral smoke inlet smoke concentration Cbmax, a first determination is performed, where the first determination includes:
judging whether the smoke concentration Cbmax of the maximum side smoke inlet is greater than the first threshold value C1, if so, controlling the wind speed gear of the range hood to be high, and executing the first judgment again after running for a first time period t 1; if not, executing a second judgment, controlling the wind speed gear of the range hood according to the result of the second judgment, firstly judging whether the smoke quantity of the side air inlet is too high, indicating that the smoke quantity is larger when the smoke quantity is too high, and opening the highest wind gear by the fan to improve the smoke suction quantity.
Optionally, the second determination comprises: judging whether the smoke concentration Cbmax of the maximum side smoke inlet is greater than a second threshold value C2, if so, controlling the wind speed gear of the range hood to be a middle gear, and executing the first judgment again after running for a second time period t 2; and if not, executing a third judgment, controlling the wind speed gear of the range hood according to the result of the third judgment, comparing the smoke at the side smoke inlet with a second threshold value C2, and when the smoke at the side smoke inlet has certain concentration but is not too large, operating the fan according to the middle gear, and reasonably controlling.
Optionally, the third determining includes: judging whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, controlling the wind speed gear of the range hood to be a low gear, and executing the first judgment again after running for a third time period t 3; if not, the wind speed gear of the range hood is controlled to be low, the fan of the range hood is turned off after the range hood is operated for the fourth time period t4, and then the concentration of the central air inlet is compared with the second threshold value C2 to judge, so that when the smoke concentration of the central air inlet is low, the whole smoke amount is ensured to be low, the range hood is turned off, and electric energy is saved.
Optionally, the first threshold C1 is greater than the second threshold C2, so that in the determination process, when the side smoke inlet is compared with two C1 values, the wind speed of the fan can be controlled by dividing the wind speed into three gears, namely, a low gear, a medium gear and a high gear.
Optionally, before the detecting the side smoke inlet smoke concentration Cb, detecting a current central smoke inlet smoke concentration Ca, and performing a fourth determination, where the fourth determination includes:
judging whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, detecting the smoke concentration Cb of the side smoke inlet, and controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the side smoke inlet, the first threshold value C1 and the second threshold value C2; if not, waiting for a fifth time period t5, detecting the smoke concentration Ca of the current central smoke inlet again, and entering the fourth judgment again.
Realize the automatic control that range hood opened, range hood can judge whether open more intelligently according to the size of smog volume by oneself.
Drawings
Fig. 1 is a schematic view of a range hood according to an embodiment of the present invention;
FIG. 2 is a first flowchart of a control method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a control method according to a second embodiment of the present invention;
fig. 4 is a flowchart of a control method according to a third embodiment of the present invention.
Description of reference numerals:
1-central smoke inlet, 2-lateral smoke inlet, 21-first smoke inlet, 22-second smoke inlet, 23-third smoke inlet and 24-fourth smoke inlet.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "first", "second", and the like in the embodiments are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
The invention provides a range hood, which is shown by combining a figure 1 and comprises a range hood body, wherein a central smoke inlet 1 and side smoke inlets 2 are arranged on the range hood body, the central smoke inlet 1 is arranged in the middle of a smoke collecting plate of the range hood body, the side smoke inlets 2 are arranged on the side edge of the smoke collecting plate of the range hood body, a plurality of side smoke inlets 2 are arranged, smoke on the side edge of the smoke collecting plate of the range hood body can be sucked away, preferably, four side smoke inlets 2 are arranged and respectively comprise a first smoke inlet 21, a second smoke inlet 22, a third smoke inlet 23 and a fourth smoke inlet 24, and the four side smoke inlets are respectively positioned at the four corners of the smoke collecting plate and can suck the smoke which runs to the four corners and the four side edges, so that the smoke is prevented from diffusing from the side edge to pollute the surrounding environment.
Alternatively, the positions of the four side smoke inlets 2 can be adjusted according to specific conditions, such as being arranged at the central positions of the four sides of the smoke collecting plate.
Preferably, the distance between the plurality of side smoke inlets 2 and the central smoke inlet 1 is equal, the plurality of side smoke inlets 2 are circularly distributed by taking the central smoke inlet 1 as a circle center, the appearance is more attractive, the smoke diffused around the central smoke inlet 1 can be better sucked, and the smoke sucking efficiency is improved.
The central smoke inlet and the lateral smoke inlets are arranged, the central smoke inlet is used for sucking a concentrated area of smoke, the lateral smoke inlets are used for sucking smoke diffused to the periphery, the smoke treatment amount is doubled in the same time, the smoke overflow caused by insufficient smoke treatment amount is avoided, and the working efficiency and the environmental quality of the range hood are improved.
In order to carry out reasonable control to the oil absorption of lampblack absorber better to and realize the automatic control of lampblack absorber according to the smog volume, this embodiment still provides a range hood's controlling means, controlling means includes: the detection unit is used for detecting the smoke concentration Ca of the current central smoke inlet 1 and the smoke concentration Cb of the lateral smoke inlets 2 and transmitting the smoke concentration Ca and the smoke concentration Cb to the control unit; the control unit is configured to receive the smoke concentration Ca and the smoke concentration Cb, and control a wind speed gear of the current range hood according to the smoke concentration Ca, the smoke concentration Cb, a first threshold C1, and a second threshold C2, specifically, the first threshold C1 and the second threshold C2 are preset values set in the control unit, where the first threshold C1 is greater than the second threshold C2.
The detection unit comprises five smoke detection sensors, the five smoke detection sensors are respectively arranged at the central smoke inlet 1 and the other four side smoke inlets 2, and it should be noted that when the number of the side smoke inlets 2 changes, the smoke detection sensors are arranged according to the side smoke inlets 2, and it is ensured that the smoke detection sensors are arranged at each central smoke inlet 1 and each side smoke inlet 2.
The control unit specifically comprises an analog-digital signal conversion module, a data processing module and a fan driving control module, wherein the analog signal conversion module converts a smoke concentration analog signal received by the control unit into a digital signal, the converted digital signal is processed through the data processing module, and the fan gear of the range hood is regulated and controlled through the fan driving control module by comparing with a threshold value, so that the wind speed of the fan is controlled.
Specifically, the smoke detection sensor and the control unit are in wired connection and communication, so that signal transmission is stable and the price is low; optionally, a wireless communication mode can be adopted, wireless communication such as Bluetooth is carried out between the control unit and each smoke detection sensor, the occupied space is smaller, wiring is not needed, the internal design is more attractive, the smoke detection sensors are powered by button batteries, the smoke detection sensors have the advantages of being small in size, low in power consumption and the like, and the wireless communication connection can also avoid the situation that the circuit is damaged to influence communication.
On the basis of the above control device, the present embodiment further provides a control method for a wind speed gear of a range hood, which is shown in fig. 2, and includes detecting a current central smoke inlet smoke concentration Ca and a current lateral smoke inlet smoke concentration Cb, and controlling the current wind speed gear of the range hood according to the central smoke inlet smoke concentration Ca, the lateral smoke inlet smoke concentration Cb, a first threshold C1, and a second threshold C2.
It should be noted that, referring to fig. 3, when the number of the side smoke inlets 2 is multiple, it is further necessary to detect a plurality of side smoke inlet smoke concentrations Cb, calculate a maximum side smoke inlet smoke concentration Cbmax among the plurality of side smoke inlet smoke concentrations Cb by using a data processing module, control the current wind speed gear of the range hood according to the central smoke inlet smoke concentration Ca, the maximum side smoke inlet smoke concentration Cbmax, the first threshold C1 and the second threshold C2, and the first threshold C1 is greater than the second threshold C2.
Referring to fig. 4, the specific method includes:
step S1, detecting the smoke concentration Ca of the current central smoke inlet and the smoke concentrations Cb of a plurality of lateral smoke inlets;
step S2, calculating a maximum side smoke inlet smoke concentration Cbmax among the plurality of side smoke inlet smoke concentrations Cb;
step S3, a first judgment is executed firstly, the first judgment is to judge whether the smoke concentration Cbmax of the current maximum side smoke inlet is larger than a first threshold value C1, if yes, the wind speed gear of the range hood is controlled to be high, and the first judgment is executed again after the range hood is operated for a first time period t 1; if not, executing a second judgment;
the second judgment is to judge whether the smoke concentration Cbmax of the maximum side smoke inlet is greater than a second threshold value C2, if so, the wind speed gear of the range hood is controlled to be a middle gear, and the first judgment is executed again after the range hood operates for a second time period t2, so that the smoke is prevented from being effectively sucked out when the smoke amount is increased in the operation process and the range hood still operates according to the middle gear; if not, executing a third judgment;
and the third judgment is to judge whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, the wind speed gear of the range hood is controlled to be low, the first judgment is executed again after the range hood is operated for a third time period t3, and if not, the wind speed gear of the range hood is controlled to be low, and the fan is turned off after the range hood is operated for a fourth time period t 4.
It should be noted that the first threshold C1 is greater than the second threshold C2, Ca is greater than Cbmax, the first time period t1 is within a range of 1-3 min, the second time period t2 is within a range of 1-3 min, the third time period t3 is within a range of 1-3 min, and the fourth time period t4 is within a range of 3-7 min.
Specifically, the first threshold value C1 and the second threshold value C2 are determined by experiments according to range hoods of different models. Before the range hood leaves a factory, a test is carried out according to the model of the range hood, the lowest smoke concentration value of the central smoke inlet needing to be opened is determined as a second threshold value C2, and the lowest smoke concentration value of the side smoke inlet needing to be opened and running in the highland is determined as a first threshold value C1.
Preferably, after the fan is turned off and before the smoke concentration Cb of the side smoke inlet is detected, the smoke concentration Ca of the current central smoke inlet is detected, and a fourth judgment is performed, the fourth judgment including:
judging whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, detecting the smoke concentration Cb of the side smoke inlet, and controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the side smoke inlet, the first threshold value C1 and the second threshold value C2; if not, waiting for a fifth time period t5, detecting the smoke concentration Ca of the current central smoke inlet again, and entering the fourth judgment again.
Realize the automatic control that range hood opened, range hood can judge whether open more intelligently according to the size of smog volume by oneself.
According to the control method of the air speed gear of the range hood, the air speed of the fan is automatically adjusted in real time through the controller according to the detected smoke concentration data of different positions, reasonable air speed selection is performed according to different smoke concentrations, the use comfort of a user is improved, the loss of electric quantity caused by overlarge rotating speed of the fan when the smoke amount is small is effectively prevented, the service life of the fan is prolonged, and the situation that the rotating speed of the fan is too small when the smoke amount is large and the smoke amount cannot be effectively removed is effectively prevented.
Specifically, in the operation process of the control method for the wind speed gear of the range hood, when a range hood closing instruction operated by a user is received, the control method is exited and the fan is closed, so that the situation that the range hood still operates when the user closes the range hood and the user mistakenly thinks that the range hood is damaged is prevented.
Preferably, in the operation process of the control method of the wind speed gear of the range hood, when a range hood closing instruction operated by a user is received for the first time, whether the smoke concentration Ca of the central smoke inlet is zero or not is detected, if yes, the control method is quitted and the fan is closed; if not, continuing the control method, sending an alarm signal, controlling the range hood to display an alarm, reminding a user that certain smoke still exists at present, and stopping the fan to cause the smoke to overflow until a stopping instruction is received again.
Preferably, an automatic control button is arranged on a control panel of the range hood, an automatic control program is arranged in the control unit, when a user selects the automatic control program, the detection unit detects the smoke concentration Ca of the central smoke inlet in real time, when the smoke concentration Ca is larger than zero, the control method of the wind speed gear of the range hood is entered, and the range hood is closed when the user actively closes the range hood, or when the smoke concentration Ca of the central smoke inlet is detected to be zero. When a user exits the automatic control program in the process that the range hood enters the control method, the control method is preferably not exited, the range hood is waited to be closed actively by the user, or the range hood is closed when the smoke concentration Ca of the central smoke inlet is detected to be zero, the automatic control program is not performed any more, and the situation that the oil absorption process is closed due to exiting of the automatic control program is prevented.
Preferably, in the automatic control program, the running time of the automatic control program or the fifth time period t5 for detecting the smoke concentration Ca at the central smoke inlet may be selected according to the cooking time of the user, for example, when the cooking time of the user is 6: 00-9: 00, 11: 00-13: 00, 16: 00-18: 00, an automatic control program can be operated, or the fifth time t5 for detecting the smoke concentration Ca of the central smoke inlet is shorter, so that the situation that the experience comfort degree of a user is influenced because the range hood operates automatically when the user does not cook is prevented; optionally, the time for cooking often can be set by a user, and in the process of starting the automatic control program, the user manually starts the fan, the automatic control program does not exit, and the user still enters the control method of the wind speed gear of the range hood.
In the invention, preferably, the control method can be carried out according to the temperature of the gas stove under the range hood, and whether the range hood needs to enter the wind speed gear of the range hood or not, a temperature sensor is arranged to detect the temperature Ta of the stove and judge whether the temperature Ta of the stove is greater than a preset temperature T1 or not, if so, a fan is started when the range hood detects that the smoke concentration Ca of a central smoke inlet is greater than zero or a user starts the range hood, and the control method enters the wind speed gear of the range hood; otherwise, controlling the range hood not to start the fan. Generally speaking, under the state that the kitchen range is not igniteed, can not produce smog to when the kitchen range is closed a fire, also there is smog to produce, but the kitchen range temperature can not drop to below presetting temperature T1, so this method can carry out reasonable cover to all time quantums that easily produce smog, and the effectual erroneous judgement that prevents the lampblack absorber leads to opening of lampblack absorber, thereby the user mistake regards as the lampblack absorber trouble.
Preferably, the range hood can be controlled according to the temperature of the lower gas stove, whether the range hood needs to be closed or not is judged, whether the currently detected temperature Ta of the stove is greater than a preset temperature T1 or not is judged in the operation process of the range hood, if yes, the range hood is kept to operate, and the fan is not closed; and if not, closing the range hood and quitting the control method of the wind speed gear of the range hood. The method has the advantages that the judgment process is accurate, when the cooking range is reduced to be below the preset temperature T1, smoke cannot be generated, namely, the range hood is not required to operate, the automatic control is more accurate, the situation that the user forgets to close the range hood after cooking is effectively avoided, the electric energy is wasted, and the electricity is saved.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A control method for a wind speed gear of a range hood is characterized in that the range hood comprises a central smoke inlet (1) and lateral smoke inlets (2), wherein the central smoke inlet (1) is positioned in the center of a smoke collection plate, and the lateral smoke inlets (2) are positioned on the lateral sides of the smoke collection plate;
the control method comprises the following steps: detecting the current smoke concentration Ca of the central smoke inlet and the current smoke concentration Cb of the lateral smoke inlet;
controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the lateral smoke inlet, a first threshold value C1 and a second threshold value C2; the side smoke inlet smoke concentrations Cb are multiple, the maximum side smoke inlet smoke concentration Cbmax in the side smoke inlet smoke concentrations Cb is obtained through calculation, and the current air speed gear of the range hood is controlled according to the central smoke inlet smoke concentration Ca, the maximum side smoke inlet smoke concentration Cbmax, the first threshold value C1 and the second threshold value C2;
after detecting and calculating the smoke concentration Ca of the central smoke inlet and the smoke concentration Cbmax of the maximum side smoke inlet, executing a first judgment, wherein the first judgment comprises the following steps:
judging whether the smoke concentration Cbmax of the maximum side smoke inlet is greater than the first threshold value C1, if so, controlling the wind speed gear of the range hood to be high, and executing the first judgment again after running for a first time period t 1; and if not, executing a second judgment, and controlling the wind speed gear of the range hood according to the result of the second judgment.
2. The control method for the wind speed gear of the range hood according to claim 1, wherein there are a plurality of side smoke inlets (2), and the distance between the plurality of side smoke inlets (2) and the central smoke inlet (1) is equal.
3. The method for controlling the wind speed gear of the range hood according to claim 2, wherein the range hood further comprises a control device, and the control device comprises:
the detection unit is used for detecting the current smoke concentration Ca of the central smoke inlet and the current smoke concentration Cb of the side smoke inlet;
and the control unit is used for controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the lateral smoke inlet, a first threshold value C1 and a second threshold value C2.
4. The control method for wind speed gear of range hood according to claim 3, wherein said detecting unit comprises a plurality of smoke detecting sensors, and said plurality of smoke detecting sensors are respectively disposed at said central smoke inlet (1) and said lateral smoke inlets (2).
5. The control method for wind speed gear of range hood according to claim 3, wherein said control unit is further configured to calculate a maximum side inlet smoke concentration Cbmax of a plurality of said side inlet smoke concentrations Cb.
6. The method for controlling the wind speed gear of the range hood according to claim 1, wherein the second determination comprises: judging whether the smoke concentration Cbmax of the maximum side smoke inlet is greater than a second threshold value C2, if so, controlling the wind speed gear of the range hood to be a middle gear, and executing the first judgment again after running for a second time period t 2; and if not, executing third judgment, and controlling the wind speed gear of the range hood according to the result of the third judgment.
7. The method for controlling the wind speed gear of the range hood according to claim 6, wherein the third judgment comprises: judging whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, controlling the wind speed gear of the range hood to be a low gear, and executing the first judgment again after running for a third time period t 3; if not, controlling the wind speed gear of the range hood to be a low gear, and turning off the fan of the range hood after the fourth time period t4 is operated.
8. The method for controlling the wind speed gear of the range hood according to claim 1, wherein before the detecting the smoke concentration Cb of the side smoke inlet, the current smoke concentration Ca of the central smoke inlet is detected, and a fourth judgment is performed, wherein the fourth judgment comprises:
judging whether the smoke concentration Ca of the central smoke inlet is greater than the second threshold value C2, if so, detecting the smoke concentration Cb of the side smoke inlet, and controlling the current wind speed gear of the range hood according to the smoke concentration Ca of the central smoke inlet, the smoke concentration Cb of the side smoke inlet, the first threshold value C1 and the second threshold value C2; if not, waiting for a fifth time period t5, detecting the smoke concentration Ca of the current central smoke inlet again, and executing the fourth judgment again.
9. The control method for wind speed gear of range hood according to claim 1, wherein said first threshold value C1 is greater than said second threshold value C2.
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| CN112050270B (en) * | 2020-08-25 | 2022-01-21 | 宁波方太厨具有限公司 | Control method of range hood |
| CN113465002B (en) * | 2021-07-20 | 2022-10-04 | 华帝股份有限公司 | Control method of automatic oil-smoke blocking machine and automatic oil-smoke blocking machine |
| CN113531618B (en) * | 2021-07-20 | 2022-11-25 | 华帝股份有限公司 | Control method of range hood |
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| CN2148275Y (en) * | 1993-02-23 | 1993-12-01 | 李光辉 | Domestic cooker hood |
| CN203177272U (en) * | 2013-04-07 | 2013-09-04 | 无锡市崇安区科技创业服务中心 | Wind speed control system of range hood |
| CN103353137A (en) * | 2013-07-02 | 2013-10-16 | 德意电器股份有限公司 | Range hood with air regulation function |
| CN103807897A (en) * | 2014-01-20 | 2014-05-21 | 浙江苏泊尔家电制造有限公司 | Multi-point separated absorbing type range hood and control method thereof |
| JP2016065653A (en) * | 2014-09-24 | 2016-04-28 | パナソニックＩｐマネジメント株式会社 | Range hood |
| CN206771466U (en) * | 2017-04-21 | 2017-12-19 | 浙江爱瑞卡普田电器有限公司 | A kind of anti-side-suction type range hood for running cigarette |
| CN107575919A (en) * | 2017-10-27 | 2018-01-12 | 珠海格力电器股份有限公司 | Fume exhaust fan |
| CN208418866U (en) * | 2018-06-06 | 2019-01-22 | 华帝股份有限公司 | Range hood with adjustable air inlet area |
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| CN110220232A (en) | 2019-09-10 |
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