CN106871201A - Range hood and its control method and device - Google Patents

Range hood and its control method and device Download PDF

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Publication number
CN106871201A
CN106871201A CN201710179833.2A CN201710179833A CN106871201A CN 106871201 A CN106871201 A CN 106871201A CN 201710179833 A CN201710179833 A CN 201710179833A CN 106871201 A CN106871201 A CN 106871201A
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CN
China
Prior art keywords
range hood
temperature
temperature change
value
rate
Prior art date
Application number
CN201710179833.2A
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Chinese (zh)
Inventor
禹春圭
李勇
Original Assignee
广东美的厨房电器制造有限公司
美的集团股份有限公司
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Application filed by 广东美的厨房电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的厨房电器制造有限公司
Priority to CN201710179833.2A priority Critical patent/CN106871201A/en
Publication of CN106871201A publication Critical patent/CN106871201A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24COTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • F24C15/2021Arrangement or mounting of control or safety systems

Abstract

The invention discloses a kind of range hood and its control method and device, the described method comprises the following steps:Obtain the mean temperature in the range of the preset area of range hood lower section;Temperature change value and rate of temperature change below range hood is obtained according to mean temperature, wherein, temperature change value is the temperature gap between mean temperature and fiducial temperature;Range hood is controlled according to temperature change value and rate of temperature change.The method is controlled by according to the temperature change value and rate of temperature change in the range of the preset area of range hood lower section to range hood, so as to judge the on off state of cooking appliance in time, and range hood is controlled automatically, the convenience that user uses is improve, and ensures that room air is pure and fresh.

Description

Range hood and its control method and device

Technical field

The present invention relates to household electrical appliance technical field, more particularly to a kind of control method of range hood, a kind of fume-exhausting The control device of machine and a kind of range hood with the device.

Background technology

At present, air quality problems (such as PM2.5) have been increasingly becoming social focus.Wherein, produced in cooking process The harmful substances such as oil smoke, PM2.5, can not only influence air quality, and can cause the pollution of indoor environment, and influence user is good for Health, therefore, how effectively to solve the problems, such as kitchen environment into focus of concern.

In correlation technique, mainly have two solving the method for kitchen environment using based on temperature automatic control cigarette machine technology Kind:One kind is detection cooking appliance, for example, detecting the flame produced when cooking appliance state, temperature, startup cooking appliance, opening Radiant heat produced during dynamic cooking appliance etc.;Another kind is detection cooking tools, for example, the cooking status of detection cooking tools, The steam or oil smoke produced in the air themperature, the cooking process that are produced in cooking tools temperature, cooking food temperature, cooking process Deng.

Wherein, in the method using detection cooking appliance, when the temperature or detection culinary art electricity that need detection cooking appliance , it is necessary to sensor is arranged in the range of measurand during the flame that device is produced, and need regulation sensor and measurand it Between distance.When the method using detection cooking tools, when cooking tools fill food, it is impossible to accurately detect culinary art The temperature of instrument, and in temperature, oil smoke, the vapor produced in detecting cooking process, arrive detectable due to starting culinary art Need certain hour, it is impossible to detection in time.Also, when external wind, cigarette machine wind speed change, will also result in detection error.

The content of the invention

It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.

Therefore, it is an object of the present invention to propose a kind of control method of range hood, by according to range hood Temperature change value and rate of temperature change in the range of the preset area of lower section are controlled to range hood such that it is able to judge in time Go out the on off state of cooking appliance, and range hood is controlled automatically, improve the convenience that user uses, and ensure room It is interior with fresh air.

It is another object of the present invention to propose a kind of control device of range hood.

A further object of the present invention is to propose a kind of range hood.

To achieve the above object, one aspect of the present invention embodiment proposes a kind of control method of range hood, including with Lower step:Obtain the mean temperature in the range of the preset area of range hood lower section;The oil suction is obtained according to the mean temperature Temperature change value and rate of temperature change below cigarette machine, wherein, the temperature change value is the mean temperature and fiducial temperature Between temperature gap;The range hood is controlled according to the temperature change value and the rate of temperature change.

The control method of range hood according to embodiments of the present invention, first, obtains range hood lower section preset area model Interior mean temperature is enclosed, then, the temperature change value and rate of temperature change below range hood is obtained according to mean temperature, most Afterwards, range hood is controlled according to temperature change value and rate of temperature change.The method is by pre- according to range hood lower section If the temperature change value and rate of temperature change in areal extent are controlled to range hood such that it is able to judge culinary art in time The on off state of electrical equipment, and range hood is controlled automatically, the convenience that user uses is improve, and ensure room air It is pure and fresh.

According to one embodiment of present invention, it is described according to the temperature change value and the rate of temperature change to the suction Lampblack absorber is controlled, including:Judge the rate of temperature change whether more than or equal to the first default rate of change and temperature change Whether change value is more than or equal to the first preset value;If the rate of temperature change is more than or equal to the described first default rate of change and institute Temperature change value is stated more than or equal to first preset value, then controls the range hood to open.

According to one embodiment of present invention, after controlling the range hood to open, also include:Become according to the temperature Change value is adjusted to the wind shelves of the range hood.

According to one embodiment of present invention, the wind shelves of the range hood include multiple gears, wherein, when the oil suction It is described the wind shelves of the range hood are adjusted according to the temperature change value when wind shelves of cigarette machine include three gears, Including:If the temperature change value is more than or equal to first preset value and less than the second preset value, by the fume-exhausting The wind shelves of machine are adjusted to the first gear;If the temperature change value is more than or equal to second preset value and default less than the 3rd Value, then by the wind shelves regulation of the range hood to the second gear;If the temperature change value is pre- more than or equal to the described 3rd If value, then by the shelves regulation of the wind of the range hood to third gear, wherein, the corresponding range hood of the third gear Wind speed it is maximum.

According to one embodiment of present invention, if the temperature change value is less than first preset value, institute is controlled State range hood shutdown.

According to one embodiment of present invention, before controlling the range hood to open, if the rate of temperature change Less than the described first default rate of change, then the fiducial temperature is compensated according to the mean temperature.

To achieve the above object, the control device of a kind of range hood that another aspect of the present invention embodiment is proposed, including: First acquisition module, for obtaining the mean temperature in the range of the preset area of range hood lower section;Second acquisition module, for root The temperature change value and rate of temperature change below the range hood are obtained according to the mean temperature, wherein, the temperature change It is the temperature gap between the mean temperature and fiducial temperature to be worth;Control module, for according to the mean temperature and described Rate of temperature change is controlled to the range hood.

The control device of range hood according to embodiments of the present invention, range hood lower section is obtained by the first acquisition module Mean temperature in the range of preset area, the second acquisition module obtains the temperature change value below range hood according to mean temperature And rate of temperature change, control module is controlled according to temperature change value and rate of temperature change to range hood.The device passes through Range hood is controlled according to the temperature change value and rate of temperature change in the range of the preset area of range hood lower section, so that The on off state of cooking appliance can in time be judged, and range hood is controlled automatically, improve user and use just Profit, and ensure that room air is pure and fresh.

According to one embodiment of present invention, the control module is according to the temperature change value and the temperature change When rate is controlled to the range hood, wherein, whether the control module judges the rate of temperature change more than or equal to the One default rate of change and whether the temperature change value is more than or equal to the first preset value;If the rate of temperature change more than etc. Rate of change being preset in described first and the temperature change value being more than or equal to first preset value, the control module is then controlled The range hood is made to open.

According to one embodiment of present invention, after controlling the range hood to open, the control module is additionally operable to root The wind shelves of the range hood are adjusted according to the temperature change value.

According to one embodiment of present invention, the wind shelves of the range hood include multiple gears, wherein, when the oil suction When the wind shelves of cigarette machine include three gears, if the temperature change value is more than or equal to first preset value and pre- less than second If value, the control module is then by the wind shelves regulation of the range hood to the first gear;If the temperature change value is more than Equal to second preset value and less than the 3rd preset value, the control module is then by the wind of range hood shelves regulation to the Two gears;If the temperature change value is more than or equal to the 3rd preset value, the control module is then by the range hood Wind shelves regulation to third gear, wherein, the wind speed of the corresponding range hood of the third gear is maximum.

According to one embodiment of present invention, if the temperature change value is less than first preset value, the control Module then controls the range hood to shut down.

According to one embodiment of present invention, before controlling the range hood to open, if the rate of temperature change Less than the described first default rate of change, the control module is then compensated according to the mean temperature to the fiducial temperature.

Additionally, embodiments of the invention also proposed a kind of range hood, the control dress that it includes above-mentioned range hood Put.

The range hood of the embodiment of the present invention, by the control device of above-mentioned range hood, by according to range hood Temperature change value and rate of temperature change in the range of the preset area of lower section are controlled to range hood such that it is able to judge in time Go out the on off state of cooking appliance, and range hood is controlled automatically, improve the convenience that user uses, and ensure room It is interior with fresh air.

Brief description of the drawings

Fig. 1 is the flow chart of the control method of range hood according to embodiments of the present invention;

Fig. 2 is the structural representation detected to the temperature below range hood using " point " mode in correlation technique;

Fig. 3 is that use " face " mode according to an embodiment of the invention is detected to the temperature below range hood Structural representation;

Fig. 4 a are the temperature changing curve diagrams without food in cooking tools according to an embodiment of the invention;

Fig. 4 b are the temperature changing curve diagrams for having food in cooking tools according to an embodiment of the invention;

The flow chart of the control method of Fig. 5 range hoods according to an embodiment of the invention;And

Fig. 6 is the block diagram of the control device of range hood according to embodiments of the present invention.

Specific embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.

The control method of the range hood of proposition according to embodiments of the present invention, range hood described with reference to the accompanying drawings Control device and the range hood with the control device.

Fig. 1 is the flow chart of the control method of range hood according to embodiments of the present invention.As shown in figure 1, the fume-exhausting The control method of machine may include following steps:

S1, obtains the mean temperature in the range of the preset area of range hood lower section.

Specifically, by taking gas-cooker as an example.The temperature below range hood is carried out when using " point " mode shown in Fig. 2 , it is necessary to install the sensor with measurand equivalent amount during detection, and need distance between adjustment sensor and measurand. And, when being detected to temperature, if there is shelter between measurand and sensor, for example, being produced in cooking process The foreign matters such as raw oil smoke, steam can block most of detection zone so that testing result is inaccurate, and anti-interference is poor.It is overall next Say, " point " mode temperature checking method is affected by the external environment greatly.

When being detected to the temperature below range hood using " face " mode shown in Fig. 3, single sensing can be used Device detects the temperature of the certain area in range hood bottom, and overlay area is big, and need not adjust between sensor and measurand Distance.And the foreign matter such as oil smoke, steam of generation only blocks fraction area in cooking process, does not interfere with testing result, resists Interference is stronger.

Therefore, in an embodiment of the present invention, detected using " face " mode.As shown in figure 3, sensor is (e.g., non- Contact infrared temperature-test sensor) range hood lower section is arranged on, it is default by sensor real-time detection range hood lower section Temperature in area, the temperature and food temperature of temperature, cooking tools including cooking appliance etc., and to obtain temperature ask Average, to obtain the average temperature tm in the range of preset area.

S2, the temperature change value and rate of temperature change below range hood are obtained according to mean temperature.

Specifically, temperature change value is the temperature gap between mean temperature and fiducial temperature, and rate of temperature change is in short-term Interior mean temperature variable quantity.Wherein, fiducial temperature can be the default value of Default Value, for example, default value can be 20 ℃。

S3, is controlled according to temperature change value and rate of temperature change to range hood.

According to one embodiment of present invention, range hood is controlled according to temperature change value and rate of temperature change, Including:Judge whether rate of temperature change presets rate of change more than or equal to first and whether temperature change value is pre- more than or equal to first If value;If rate of temperature change is more than or equal to the first default rate of change and temperature change value is more than or equal to the first preset value, control Range hood processed is opened.Wherein, the first default rate of change and the first preset value can be demarcated according to actual conditions.

Specifically, when cooking appliance is not opened, the rate of temperature change below range hood will be less than certain value and temperature Degree changing value is smaller, and when cooking appliance is opened, rate of temperature change will be greater than the value and temperature change value is larger, therefore, lead to Excess temperature changing value and rate of temperature change can be accurately judged to whether cooking appliance is opened.And due to being detected using " face " mode Mean temperature below range hood, the temperature and food temperature of temperature, cooking tools including cooking appliance etc., therefore not Whether there is food in pipe cooking tools, can promptly and accurately judge whether cooking appliance is opened.

Specifically, as shown in fig. 4 a, when in cooking tools without food, the unlatching of cooking appliance is represented in figure at dotted line frame At the moment, now the rate of temperature change below range hood is more than certain value (the such as first default rate of change) and temperature change value is big In certain value (such as the first preset value);As shown in Figure 4 b, when there is food in cooking tools, culinary art electricity is represented in figure at dotted line frame The start-up time of device, now the rate of temperature change below range hood is also greater than certain value (the such as first default rate of change) and temperature Degree changing value is also greater than certain value (such as the first preset value).Therefore, can by " face " mode, temperature change value and rate of temperature change To be accurately judged to the start-up time of cooking appliance in time.

When judging that cooking appliance is opened, automatic control type kitchen ventilator is opened, such that it is able to will produce at the culinary art initial stage in time Raw imperfect combustion gas discharge, effectively prevent range hood is controlled only by temperature change value, and cause Cannot in time detect cooking appliance start-up time, and then cannot in time control the problem that range hood opens, and using single Individual sensor detected, has saved cost, improves antijamming capability.

According to one embodiment of present invention, after control range hood is opened, also include:According to temperature change value to inhaling The wind shelves of lampblack absorber are adjusted.

According to one embodiment of present invention, the wind shelves of range hood include multiple gears, wherein, when the wind of range hood When shelves include three gears, the wind shelves of range hood are adjusted according to temperature change value, including:If temperature change value is big In equal to the first preset value and less than the second preset value, then by the wind shelves regulation of range hood to the first gear;If temperature becomes Change value is then adjusted to the second gear the wind shelves of range hood more than or equal to the second preset value and less than the 3rd preset value;If Temperature change value is more than or equal to the 3rd preset value, then by the wind shelves regulation of range hood to third gear.Wherein, third gear pair The wind speed of the range hood answered is maximum, and the second preset value and the 3rd preset value can be demarcated according to actual conditions.

Further, according to one embodiment of present invention, if temperature change value is less than the first preset value, control is inhaled Lampblack absorber shuts down.

Specifically, as shown in figures 4 a and 4b, after control range hood is opened, average temperature tm and benchmark are calculated Difference between temperature Tr, as temperature change value, and whether temperature change value is judged in preset temperature excursion, if It is the wind shelves that range hood is then determined according to temperature change value.Wherein, preset temperature excursion is according to experimental data and suction The gear that lampblack absorber is supported determines.

So that range hood supports three gears as an example.As Tm-Tr < the first preset value Tc1, range hood is zero span, i.e., The blower fan of range hood is in off-mode;As Tc1≤Tm-Tr < the second preset value Tc2, control range hood is with the first wind Shelves (wind speed is minimum) operation;As Tc2≤Tm-Tr the 3rd preset value Tc3 of <, control range hood is run with the second wind shelves;When During Tm-Tr >=Tc3, control range hood is with the 3rd wind shelves (wind speed is maximum) operation.It is achieved thereby that to inhaling in cooking process Lampblack absorber wind shelves automatically control, manually operated without user, effectively prevent because of user has the foreign matters such as greasy dirt, water and glues on hand To range hood surface, Consumer's Experience is substantially increased.

Wherein, according to one embodiment of present invention, before control range hood is opened, if rate of temperature change is less than First default rate of change, then compensate according to mean temperature to fiducial temperature.

Specifically, Various Seasonal, the environment temperature of different regions are different, if carried out using the fiducial temperature of acquiescence Calculate and judge, then when the wind shelves of range hood are controlled, larger error can be produced, therefore, it can carry out fiducial temperature Compensation, so that fiducial temperature more conforms to actual conditions.

Specifically, when range hood is closed, can be according to the mean temperature pair below the range hood of detection Fiducial temperature is compensated, for example, fiducial temperature is equal to mean temperature.Preset more than or equal to first when rate of temperature change is detected When rate of change and temperature change value are more than or equal to the first preset value, control range hood is opened, and now no longer fiducial temperature is entered Row compensation, that is, keep current base temperature-resistant, and the wind shelves of range hood are adjusted according to the fiducial temperature.So that Before range hood is opened, fiducial temperature is compensated by the mean temperature below range hood, not only cause control more Precisely, and without extra temperature in use sensor current environmental temperature is detected, has saved cost.

It should be noted that when rate of temperature change is more than or equal to the second default rate of change, even if temperature change value does not exist In preset temperature excursion, it is also desirable to control the blower fan of range hood to open a period of time, wherein, the second default rate of change is big In the first default rate of change.So as in user for a long time using cooking appliance when, effectively judge appearance in cooking process Overheat, it is burnt, etc. abnormal conditions, and make corresponding measure, and then provide the user facility, it is ensured that safety.

Furthermore, it is contemplated that the temperature variation characteristic in cooking process, after range hood unlatching, temperature change value is more next It is smaller, when temperature change value is less than certain value, whether cooking appliance is judged again according to temperature change value and rate of temperature change Open.If it is determined that cooking appliance is not opened, then automatic control type kitchen ventilator is closed, and is economized on resources.

To make those skilled in the art be better understood upon the present invention.Fig. 5 is oil suction according to an embodiment of the invention The flow chart of the control method of cigarette machine.As shown in figure 5, the control method of the range hood may include following steps:

S101, obtains the average temperature tm of the certain area in range hood bottom.

S102, judges whether cooking appliance has been in opening.If it is, performing step S107;If not, performing Step S103.

S103, obtains rate of temperature change dTm/dt, and obtain the difference between Tm and fiducial temperature Tr, i.e. temperature according to Tm Changing value=Tm-Tr.

Whether whether S104, judge dTm/dt rate of change α default more than or equal to first and temperature change value more than or equal to the One preset value Tc1.If it is, performing step S106;If not, performing step S105.

S105, compensates according to Tm to fiducial temperature Tr, for example, Tr=Tm.

S106, cooking appliance is opened.

Whether S107, judge Tm-Tr more than or equal to Tc1.If it is, performing step S108;If not, performing step S113。

Whether S108, judge Tm-Tr more than or equal to Tc1 and less than the second preset value Tc2.If it is, performing step S109; If not, performing step S110.

S109, control range hood is run with the first gear.

Whether S110, judge Tm-Tr less than the 3rd preset value Tc3.If it is, performing step S111;If not, performing step Rapid S112.

S111, control range hood is run with the second gear.

S112, control range hood is run with third gear.

S113, closes range hood.

Additionally, the intellectuality in order to further improve range hood, can also be carried out automatically to the illuminating lamp of range hood Control.User enters kitchen around cigarette machine, and the illumination of cigarette machine is automatically turned on as rate of temperature change β≤(dTm/dt) < α.Its In, it is ensured that β≤(dTm/dt) is the interference in order to prevent environment from causing, so as to ensure control accuracy.

In sum, the control method of range hood according to embodiments of the present invention, first, obtains range hood lower section pre- If the mean temperature in areal extent, then, temperature change value and temperature below range hood are obtained according to mean temperature and is become Rate, finally, is controlled according to temperature change value and rate of temperature change to range hood.The method is by according to range hood Temperature change value and rate of temperature change in the range of the preset area of lower section are controlled to range hood such that it is able to judge in time Go out the on off state of cooking appliance, and range hood is controlled automatically, improve the convenience that user uses, and ensure room It is interior with fresh air.

Fig. 6 is the block diagram of the control device of range hood according to embodiments of the present invention.As shown in fig. 6, the suction The control device of lampblack absorber may include:First acquisition module 10, the second acquisition module 20 and control module 30.

Wherein, the first acquisition module 10 is used to obtain the mean temperature in the range of the preset area of range hood lower section.Second Acquisition module 20 is used for according to the temperature change value and rate of temperature change below mean temperature acquisition range hood, wherein, temperature Changing value is the temperature gap between mean temperature and fiducial temperature.Control module 30 is used to be become according to temperature change value and temperature Rate is controlled to range hood.

According to one embodiment of present invention, control module 30 according to temperature change value and rate of temperature change to fume-exhausting When machine is controlled, whether control module 30 judges rate of temperature change more than or equal to the first default rate of change and temperature change value Whether the first preset value is more than or equal to;If rate of temperature change presets rate of change more than or equal to first and temperature change value is more than Equal to the first preset value, control module 30 then controls range hood to open.

Specifically, by taking gas-cooker as an example.The temperature below range hood is carried out when using " point " mode shown in Fig. 2 , it is necessary to install the sensor with measurand equivalent amount during detection, and need distance between adjustment sensor and measurand. And, when being detected to temperature, if there is shelter between measurand and sensor, for example, being produced in cooking process The foreign matters such as raw oil smoke, steam can block most of detection zone so that testing result is inaccurate, and anti-interference is poor.It is overall next Say, " point " mode temperature checking method is affected by the external environment greatly.

When being detected to the temperature below range hood using " face " mode shown in Fig. 3, single sensing can be used Device detects the temperature of the certain area in range hood bottom, and overlay area is big, and need not adjust between sensor and measurand Distance.And the foreign matter such as oil smoke, steam of generation only blocks fraction area in cooking process, does not interfere with testing result, resists Interference is stronger.

Therefore, in an embodiment of the present invention, detected using " face " mode.As shown in figure 3, sensor is (e.g., non- Contact infrared temperature-test sensor) range hood lower section is arranged on, the first acquisition module 10 is inhaled by the sensor real-time detection Temperature in the preset area of lampblack absorber lower section, the temperature and food temperature of temperature, cooking tools including cooking appliance etc., and To the temperature averaged for obtaining, to obtain the average temperature tm in the range of preset area.

Specifically, when cooking appliance is not opened, the rate of temperature change below range hood will be less than certain value and temperature Degree changing value is smaller, and when cooking appliance is opened, rate of temperature change will be greater than the value and temperature change value is larger, therefore, control Molding block 30 can be accurately judged to whether cooking appliance is opened by temperature change value and rate of temperature change.And due to using " face " mode detects the mean temperature below range hood, including the temperature of cooking appliance, the temperature of cooking tools and food Temperature etc., therefore regardless of whether having food in cooking tools, can promptly and accurately judge whether cooking appliance is opened.

Specifically, as shown in fig. 4 a, when in cooking tools without food, the unlatching of cooking appliance is represented in figure at dotted line frame At the moment, now the rate of temperature change below range hood is more than certain value (the such as first default rate of change) and temperature change value is big In certain value (such as the first preset value);As shown in Figure 4 b, when there is food in cooking tools, culinary art electricity is represented in figure at dotted line frame The start-up time of device, now the rate of temperature change below range hood is also greater than certain value (the first default rate of change) and temperature Changing value is also greater than certain value (such as the first preset value).Therefore, can be with by " face " mode, temperature change value and rate of temperature change Promptly and accurately judge the start-up time of cooking appliance.

When cooking appliance starts, the automatic control type kitchen ventilator of control module 30 is opened, such that it is able to cook in time The imperfect combustion gas discharge that initial stage produces, effectively prevent to be controlled range hood only by temperature change value and leads What is caused cannot in time detect that cooking appliance starts, and then cannot in time control the problem of range hood unlatching, and using single Sensor detected, has saved cost, improves antijamming capability.

According to one embodiment of present invention, after control range hood is opened, control module 30 is always according to temperature change Value is adjusted to the wind shelves of range hood.

According to one embodiment of present invention, the wind shelves of range hood include multiple gears, wherein, when the wind of range hood When shelves include three gears, if temperature change value is more than or equal to the first preset value and less than the second preset value, control module 30 Then by the wind shelves regulation of range hood to the first gear;If temperature change value is more than or equal to the second preset value and pre- less than the 3rd If value, control module 30 is then by the wind shelves regulation of range hood to the second gear;If temperature change value is pre- more than or equal to the 3rd If value, control module 30 is then adjusted to third gear the wind shelves of range hood, wherein, the corresponding range hood of third gear Wind speed is maximum.

Further, according to one embodiment of present invention, if temperature change value is less than the first preset value, control module 30 control range hood shutdown.

Specifically, as shown in figures 4 a and 4b, control module 30 is also further counted after control range hood is opened The difference between average temperature tm and fiducial temperature Tr, as temperature change value are calculated, and judges temperature change value whether default In range of temperature, if it is, determining the wind shelves of range hood according to temperature change value.

So that range hood supports three gears as an example.As Tm-Tr < the first preset value Tc1, range hood is zero span, i.e., The blower fan of range hood is in off-mode;As Tc1≤Tm-Tr < the second preset value Tc2, the control fume-exhausting of control module 30 Machine is with the first wind shelves (wind speed is minimum) operation;As Tc2≤Tm-Tr the 3rd preset value Tc3 of <, the control fume-exhausting of control module 30 Machine is run with the second wind shelves;As Tm-Tr >=Tc3, control module 30 controls range hood with the 3rd wind shelves (wind speed is maximum) fortune OK.It is achieved thereby that range hood air shelves are automatically controlled in cooking process, it is manually operated without user, effectively prevent Range hood surface is adhered to because user there are the foreign substances such as greasy dirt, water on hand, Consumer's Experience is substantially increased.

Wherein, according to one embodiment of present invention, before control range hood is opened, if rate of temperature change is less than First default rate of change, control module 30 is then compensated according to mean temperature to fiducial temperature.

Specifically, Various Seasonal, the environment temperature of different regions are different, if carried out using the fiducial temperature of acquiescence Calculate and judge, then when the wind shelves of range hood are controlled, larger error can be produced, therefore, it can carry out fiducial temperature Compensation, so that fiducial temperature more conforms to actual conditions.

Specifically, when range hood is closed, control module 30 can according to detection range hood below Mean temperature is compensated to fiducial temperature, for example, fiducial temperature is equal to current mean temperature.It is big when rate of temperature change is detected When rate of change being preset equal to first and temperature change value is more than or equal to the first preset value, the control range hood of control module 30 Open, now no longer fiducial temperature is compensated, that is, keep current base temperature-resistant, and according to the fiducial temperature to oil suction The wind shelves of cigarette machine are adjusted.So as to before range hood unlatching, by the mean temperature below range hood to fiducial temperature Compensate, not only cause control more precisely, and current environmental temperature is detected without extra temperature in use sensor, save Cost.

It should be noted that when rate of temperature change is more than or equal to the second default rate of change, even if temperature change value does not exist In preset temperature excursion, it is also desirable to control the blower fan of range hood to open a period of time, wherein, the second default rate of change is big In the first default rate of change.So as in user for a long time using cooking appliance when, effectively judge appearance in cooking process Overheat, it is burnt, etc. abnormal conditions, and make corresponding measure, and then provide the user facility, it is ensured that safety.

Furthermore, it is contemplated that the temperature variation characteristic in cooking process, after range hood unlatching, changing value is increasingly Small, when temperature change value is less than certain value, control module 30 judges culinary art again according to temperature change value and rate of temperature change Whether electrical equipment is opened.If it is determined that cooking appliance is not opened, control module 30 then close by automatic control type kitchen ventilator, saves money Source.

Additionally, the intellectuality in order to further improve range hood, can also be carried out automatically to the illuminating lamp of range hood Control.User enters kitchen around cigarette machine, and the illumination of cigarette machine is automatically turned on as rate of temperature change β≤(dTm/dt) < α.Its In, it is ensured that β≤(dTm/dt) is the interference in order to prevent environment from causing, so as to ensure control accuracy.

It should be noted that the details not disclosed in the control device of the range hood of the embodiment of the present invention, refer to this Details disclosed in the control method of the range hood of inventive embodiments, specifically repeats no more here.

The control device of range hood according to embodiments of the present invention, range hood lower section is obtained by the first acquisition module Mean temperature in the range of preset area, the second acquisition module obtains the temperature change value below range hood according to mean temperature And rate of temperature change, control module is controlled according to temperature change value and rate of temperature change to range hood.The device passes through Range hood is controlled according to the temperature change value and rate of temperature change in the range of the preset area of range hood lower section, so that The on off state of cooking appliance can in time be judged, and range hood is controlled automatically, improve user and use just Profit, and ensure that room air is pure and fresh.

Additionally, embodiments of the invention also proposed a kind of range hood, the control dress that it includes above-mentioned range hood Put.

The range hood of the embodiment of the present invention, by the control device of above-mentioned range hood, by according to range hood Temperature change value and rate of temperature change in the range of the preset area of lower section are controlled to range hood such that it is able to judge in time Go out the on off state of cooking appliance, and range hood is controlled automatically, improve the convenience that user uses, and ensure room It is interior with fresh air.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three It is individual etc., unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be that machinery connects Connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art For, can as the case may be understand above-mentioned term concrete meaning in the present invention.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example Close and combine.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (13)

1. a kind of control method of range hood, it is characterised in that comprise the following steps:
Obtain the mean temperature in the range of the preset area of range hood lower section;
Temperature change value and rate of temperature change below the range hood is obtained according to the mean temperature, wherein, the temperature Degree changing value is the temperature gap between the mean temperature and fiducial temperature;
The range hood is controlled according to the temperature change value and the rate of temperature change.
2. the control method of range hood as claimed in claim 1, it is characterised in that it is described according to the temperature change value and The rate of temperature change is controlled to the range hood, including:
Judge whether the rate of temperature change is more than or equal to the first default rate of change and whether the temperature change value is more than or equal to First preset value;
If the rate of temperature change presets rate of change more than or equal to described first and the temperature change value is more than or equal to described First preset value, then control the range hood to open.
3. the control method of range hood as claimed in claim 2, it is characterised in that opened the range hood is controlled Afterwards, also include:
The wind shelves of the range hood are adjusted according to the temperature change value.
4. the control method of range hood as claimed in claim 3, it is characterised in that the wind shelves of the range hood include many Individual gear, wherein, when the wind shelves of the range hood include three gears, according to the temperature change value to the fume-exhausting The wind shelves of machine are adjusted, including:
If the temperature change value is more than or equal to first preset value and less than the second preset value, by the range hood Wind shelves regulation to the first gear;
If the temperature change value is more than or equal to second preset value and less than the 3rd preset value, by the range hood Wind shelves regulation to the second gear;
If the temperature change value is more than or equal to the 3rd preset value, by the wind shelves regulation of the range hood to the 3rd Gear, wherein, the wind speed of the corresponding range hood of the third gear is maximum.
5. the control method of the range hood as described in claim 2 or 4, it is characterised in that if the temperature change value is small In first preset value, then the range hood is controlled to shut down.
6. the control method of range hood as claimed in claim 2, it is characterised in that open it the range hood is controlled Before, if the rate of temperature change is less than the described first default rate of change, according to the mean temperature to the fiducial temperature Compensate.
7. a kind of control device of range hood, it is characterised in that including:
First acquisition module, for obtaining the mean temperature in the range of the preset area of range hood lower section;
Second acquisition module, becomes for obtaining temperature change value and temperature below the range hood according to the mean temperature Rate, wherein, the temperature change value is the temperature gap between the mean temperature and fiducial temperature;
Control module, for being controlled to the range hood according to the temperature change value and the rate of temperature change.
8. the control device of range hood as claimed in claim 7, it is characterised in that the control module is according to the temperature When degree changing value and the rate of temperature change are controlled to the range hood, wherein,
Whether the control module judges the rate of temperature change more than or equal to the first default rate of change and temperature change value Whether the first preset value is more than or equal to;
If the rate of temperature change presets rate of change more than or equal to described first and the temperature change value is more than or equal to described First preset value, the control module then controls the range hood to open.
9. the control device of range hood as claimed in claim 8, it is characterised in that opened the range hood is controlled Afterwards, the control module is additionally operable to be adjusted the wind shelves of the range hood according to the temperature change value.
10. the control device of range hood as claimed in claim 9, it is characterised in that the wind shelves of the range hood include Multiple gears, wherein, when the wind shelves of the range hood include three gears,
If the temperature change value is more than or equal to first preset value and less than the second preset value, the control module then will The wind shelves of the range hood are adjusted to the first gear;
If the temperature change value is more than or equal to second preset value and less than the 3rd preset value, the control module then will The wind shelves of the range hood are adjusted to the second gear;
If the temperature change value is more than or equal to the 3rd preset value, the control module is then by the wind of the range hood Shelves regulation to third gear, wherein, the wind speed of the corresponding range hood of the third gear is maximum.
The control device of 11. range hood as described in claim 8 or 10, it is characterised in that if the temperature change value Less than first preset value, the control module then controls the range hood to shut down.
The control device of 12. range hoods as claimed in claim 8, it is characterised in that opened the range hood is controlled Before, if the rate of temperature change is less than the described first default rate of change, the control module is then according to the mean temperature The fiducial temperature is compensated.
A kind of 13. range hoods, it is characterised in that the control including the range hood as any one of claim 7-12 Device.
CN201710179833.2A 2017-03-23 2017-03-23 Range hood and its control method and device CN106871201A (en)

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CN107420953A (en) * 2017-07-05 2017-12-01 珠海格力电器股份有限公司 A kind of range hood control method and control device
CN107559921A (en) * 2017-10-30 2018-01-09 杭州老板电器股份有限公司 Smoke exhaust ventilator control method, apparatus and system
CN107741041A (en) * 2017-10-19 2018-02-27 杭州老板电器股份有限公司 The control method and air quantity self-adjusting lampblack absorber of a kind of air quantity self-adjusting lampblack absorber
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CN108278651A (en) * 2018-04-24 2018-07-13 广东美的厨房电器制造有限公司 Range hood and its control method and system and open fire detection method and device
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CN108518712A (en) * 2018-04-24 2018-09-11 广东美的厨房电器制造有限公司 Range hood and its control method and system and open fire detection method and device
CN109405014A (en) * 2018-10-31 2019-03-01 杭州老板电器股份有限公司 Kitchen ventilator infrared control method, system and kitchen ventilator
CN109945260A (en) * 2019-03-14 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 For the control method of kitchen ventilator, controller, control device and kitchen ventilator

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Publication number Priority date Publication date Assignee Title
CN107420953A (en) * 2017-07-05 2017-12-01 珠海格力电器股份有限公司 A kind of range hood control method and control device
CN107741041A (en) * 2017-10-19 2018-02-27 杭州老板电器股份有限公司 The control method and air quantity self-adjusting lampblack absorber of a kind of air quantity self-adjusting lampblack absorber
CN107741041B (en) * 2017-10-19 2019-07-23 杭州老板电器股份有限公司 A kind of control method and air quantity self-adjusting kitchen ventilator of air quantity self-adjusting kitchen ventilator
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CN108518712A (en) * 2018-04-24 2018-09-11 广东美的厨房电器制造有限公司 Range hood and its control method and system and open fire detection method and device
CN108266776A (en) * 2018-04-24 2018-07-10 广东美的厨房电器制造有限公司 The fiery detection method of range hood and its control method and system and pass and device
CN109405014A (en) * 2018-10-31 2019-03-01 杭州老板电器股份有限公司 Kitchen ventilator infrared control method, system and kitchen ventilator
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CN109945260A (en) * 2019-03-14 2019-06-28 佛山市顺德区美的洗涤电器制造有限公司 For the control method of kitchen ventilator, controller, control device and kitchen ventilator

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