CN105444237A - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
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- CN105444237A CN105444237A CN201511034329.0A CN201511034329A CN105444237A CN 105444237 A CN105444237 A CN 105444237A CN 201511034329 A CN201511034329 A CN 201511034329A CN 105444237 A CN105444237 A CN 105444237A
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- gas sensor
- range hood
- controller
- blower fan
- control method
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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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- Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a range hood and a control method thereof. The control method comprises the following steps: (1) a first stable value of a gas sensor after primary electrification is set as an operation reference value a; a maximum valve value of the gas sensor is Ma; a minimum valve value of the gas sensor is ma; Ma=a+c; ma=a+d; and c is bigger than d; (2) the gas sensor detects an air environment in a smoke collecting cavity in real time; a detected real-time value b is sent to a controller; and when a variation delta b of b within t1 time is bigger than s, the controller sends an instruction to start a fan; and (3) when b is not smaller than Ma, the controller sends an instruction to enable the fan to increase the rotating speed; when Ma is bigger than b, and b is bigger than ma, the controller sends an instruction to reduce the rotating sped of the fan; and when b is not bigger than ma, the controller sends an instruction to stop the work of the fan. The control method uses the gas sensor for detecting in real time, uses the first stable value of the gas sensor after primary electrification as the operation reference value, overcomes the shifting problem of the gas sensor, and realizes automatic and precise control of the range hood.
Description
Technical field
The present invention relates to kitchen appliance technical field, particularly a kind of range hood and control method thereof.
Background technology
The control of usual range hood needs to be controlled by staff depresses button, and goes to control with the subjective desire of people.Because people are when cooking, usual hand has food materials in busy or hand strap and cannot remove to press the switch of range hood, or presses operational issues such as having some setbacks, inconvenient operation; Such as, and the instinct of people cannot make judgement accurately and timely, the phenomenon such as gas leak, chimney smoke leakage to air ambient, thus the timely opening and closing to cigarette machine cannot be realized, affect the air quality in kitchen and threaten personal safety.And there is serious drifting problem in conventional gas sensor, can not feedback air environment accurately, in actual use at present, the automatic control of range hood cannot be applied to.
Summary of the invention
The object of the present invention is to provide a kind of range hood and control method thereof, the drifting problem of gas sensor can be overcome, realize automatically precisely controlling range hood.
For realizing object of the present invention, the technical scheme taked is:
A control method for range hood, range hood comprises the gas sensor be placed in smoke collecting chamber, the controller that is electrically connected with gas sensor, and the blower fan that is electrically connected of controller, and this control method comprises the following steps:
(1), setting gas sensor power on for the first time after to air ambient detect first time stationary value as operation a reference value a, the maximum threshold values of gas sensor is Ma, and the minimum threshold values of gas sensor is ma, wherein, Ma=a+c, ma=a+d, c > d;
(2), gas sensor detects in real time the air ambient in smoke collecting chamber, and the instantaneous value b of detection is sent to controller, and as the variation delta b > s of b within the t1 time, controller sends instruction and makes fan starting;
(3), as b >=Ma, step (i) is performed; When Ma > b > ma performs step (ii); As b≤ma, perform step (iii);
I (), controller send instruction makes blower fan improve rotating speed;
(ii), controller sends instruction and makes blower fan reduction rotating speed;
(iii), controller sends instruction blower fan is quit work.
Gas sensor is placed in smoke collecting chamber, air ambient is detected in real time by gas sensor, the particle matter that all affect composition of air on the alcohol in air, coal gas, organic steam etc. detects, and the information of collection is sent to controller, controller carries out analyzing and processing according to the information of collecting, and control the opening of blower fan, rotating speed and the action such as to open, without the need to people's hand operated, realize the automatic control to range hood, easy to use, and effectively prevent from, because of the serious consequence that flue gas is revealed or air pollution causes, ensuring personal safety.And by gas sensor, air ambient is detected in real time, ensure to start the ageing of range hood; And using the stationary value that detects air ambient after gas sensor powers on for the first time as operation a reference value, ensure the uniformity that range hood automatically controls in running to overcome the drifting problem of gas sensor, realize automatically precisely controlling range hood.
Below technical scheme is further illustrated:
Further, in step (ii), after blower fan reduces rotating speed, within the t2 time, controller stops sending instruction.After blower fan reduces wind speed, controller quits work and does not send instruction to blower fan, make of short duration delay process, there will be of short duration negative pressuren zone in smoke collecting chamber after overcoming blower fan reduction of speed and make the detected value of gas sensor occur of short duration rising phenomenon, avoid the misoperation occurred because gas sensor floats, make the control of range hood more accurate.
Further, in step (iii), after blower fan quits work, within the t2 time, controller stops sending instruction.After blower fan quits work, controller quits work and does not send instruction to blower fan, make of short duration delay process, there will be of short duration negative pressuren zone in smoke collecting chamber after overcoming blower fan closedown and make the detected value of gas sensor occur of short duration rising phenomenon, avoid the misoperation occurred because gas sensor floats, make the control of range hood more accurate.
Further, after controller sends and makes the out-of-work instruction of blower fan, blower fan quits work after the t3 time.Oil smoke in smoke collecting chamber is drained only fully, makes the cleaning effect of range hood better.
Further, after the t2 time, re-execute step (2) and step (3), circulate according to this.Make the automation of range hood higher, more accurate to the control of range hood.
Further, gas sensor is TGS2620 model gas sensor.TGS2620 model gas sensitivity is high, working stability, and long service life, make the automatic control of range hood more stable.
The present invention also provides a kind of and adopts as the range hood of above-mentioned control method, it is characterized in that, the controller comprise the gas sensor be placed in smoke collecting chamber, being electrically connected with gas sensor, and the blower fan that is electrically connected of controller.
Gas sensor is placed in smoke collecting chamber, air ambient is detected in real time by gas sensor, the particle matter that all affect composition of air on the alcohol in air, coal gas, organic steam etc. detects, and the information of collection is sent to controller, controller carries out analyzing and processing according to the information of collecting, and control the opening of blower fan, rotating speed and the action such as to open, without the need to people's hand operated, realize the automatic control to range hood, easy to use, and effectively prevent from, because of the serious consequence that flue gas is revealed or air pollution causes, ensuring personal safety.
Further, also comprise control panel, control panel is provided with environment designation lamp, and environment designation lamp and controller are electrically connected.By environment designation lamp, quality of air environment is fed back, make user recognize room air situation in real time, make range hood more intelligent
Further, environment designation lamp is light bar, is provided with multiple light source in light bar, and the color of each light source display is different.Controller is according to the air information collected, and the indicator lamp that controls environment shows different colors, visually to user feedback room air situation, makes range hood more intelligent.
Further, control panel is at least provided with power switch and speed-regulating switch, power switch and speed-regulating switch are all electrically connected with described controller.User by the opening and closing of power switch manual control range hood, and passes through the size of speed-regulating switch manual control fan delivery, range hood can be controlled automatically, also can carry out manual control, make the use of range hood more flexible
Compared with prior art, the present invention has following beneficial effect:
The present invention detects air ambient in real time by gas sensor, the particle matter that all affect composition of air on the alcohol in air, coal gas, organic steam etc. detects, and the information of collection is sent to controller, controller carries out analyzing and processing according to the information of collecting, and control the opening of blower fan, rotating speed and the action such as to open, without the need to people's hand operated, realize the automatic control to range hood, easy to use, and effectively prevent from, because of the serious consequence that flue gas is revealed or air pollution causes, ensuring personal safety.And by environment designation lamp, quality of air environment is fed back, make user recognize room air situation in real time, make range hood more intelligent.And by gas sensor, air ambient is detected in real time, ensure to start the ageing of range hood; And using the stationary value that detects air ambient after gas sensor powers on for the first time as operation a reference value, ensure the uniformity that range hood automatically controls in running to overcome the drifting problem of gas sensor, realize automatically precisely controlling range hood.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the control method of embodiment of the present invention range hood;
Fig. 2 is the structural representation of embodiment of the present invention range hood.
Description of reference numerals:
10. control panel, 20. smoke collecting chambers, 30. gas sensors, 40. environment designation lamps, 50. gauge taps, 60. cabinets.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
As depicted in figs. 1 and 2, a kind of control method of range hood, the controller (accompanying drawing does not identify) that range hood comprises the gas sensor 30 be placed in smoke collecting chamber 20, is electrically connected with gas sensor 30, and the blower fan (accompanying drawing does not identify) that is electrically connected of controller, this control method comprises the following steps:
(1), setting gas sensor 30 after powering on for the first time, air ambient is detected first time stationary value as operation a reference value a, the right maximum threshold values of gas sensor 30 is Ma, and the minimum threshold values of gas sensor 30 is ma, wherein, Ma=a+c, ma=a+d, c > d;
(2) air ambient, in gas sensor 30 pairs of smoke collecting chambers 20 detects in real time, and the instantaneous value b of detection is sent to controller, and as the variation delta b > s of b within the t1 time, controller sends instruction and makes fan starting;
(3), as b >=Ma, step (i) is performed; When Ma > b > ma performs step (ii); As b≤ma, perform step (iii);
I (), controller send instruction makes blower fan improve rotating speed;
(ii), controller sends instruction and makes blower fan reduction rotating speed;
(iii), controller sends instruction blower fan is quit work.
Gas sensor 30 is placed in smoke collecting chamber 20, air ambient is detected in real time by gas sensor 30, the particle matter that all affect composition of air on the alcohol in air, coal gas, organic steam etc. detects, and the information of collection is sent to controller, controller carries out analyzing and processing according to the information of collecting, and control the opening of blower fan, rotating speed and the action such as to open, without the need to people's hand operated, realize the automatic control to range hood, easy to use, and effectively prevent from, because of the serious consequence that flue gas is revealed or air pollution causes, ensuring personal safety.And detected in real time by gas sensor 30 pairs of air ambients, ensure to start the ageing of range hood; And using the stationary value that detects air ambient after gas sensor 30 powers on for the first time as operation a reference value, ensure the uniformity that range hood automatically controls in running, overcome the drifting problem of gas sensor 30, realize automatically precisely controlling range hood.
In the present embodiment, gas sensor upgraded detected value b every one minute, and detected value b was sent to controller itself and a reference value a are compared, and controller is according to the output control fan operation of contrast.The frequency that gas sensor upgrades detected value b can also be set to other numerical value according to actual needs.
In step (ii), after blower fan reduces rotating speed, within the t2 time, controller stops sending instruction.After blower fan reduces wind speed, controller quits work and does not send instruction to blower fan, make of short duration delay process, there will be of short duration negative pressuren zone in smoke collecting chamber 20 after overcoming blower fan reduction of speed and make the detected value of gas sensor 30 occur of short duration rising phenomenon, avoid the misoperation occurred because gas sensor 30 floats, make the control of range hood more accurate.
In step (iii), after controller sends and makes the out-of-work instruction of blower fan, blower fan quits work after the t3 time, the oil smoke in smoke collecting chamber is drained only fully, makes the cleaning effect of range hood better.And after blower fan quits work, within the t2 time, controller stops sending instruction.After blower fan quits work, controller quits work and does not send instruction to blower fan, make of short duration delay process, there will be of short duration negative pressuren zone in smoke collecting chamber 20 after overcoming blower fan closedown and make the detected value of gas sensor 30 occur of short duration rising phenomenon, avoid the misoperation occurred because gas sensor 30 floats, make the control of range hood more accurate.
After the t2 time, re-execute step (2) and step (3), circulate according to this.Make the automation of range hood higher, more accurate to the control of range hood.
In the present embodiment, t1 is 1-10s, t2=1min, t3=3min, t1, t2 and t3 can also arrange other times according to actual needs.
As shown in Figure 2, the present invention also provides a kind of range hood adopted as above-mentioned control method, comprise control panel 10, smoke collecting chamber 20, blower fan (accompanying drawing does not identify), the controller (accompanying drawing does not identify) of the keying at least controlling blower fan and rotating speed, the gas sensor 30 that is electrically connected with controller, gas sensor 30 is located in smoke collecting chamber 20, control panel 10 is provided with environment designation lamp 40, and environment designation lamp 40 and controller are electrically connected.
Gas sensor 30 is placed in smoke collecting chamber 20, air ambient is detected in real time by gas sensor 30, the particle matter that all affect composition of air on the alcohol in air, coal gas, organic steam etc. detects, and the information of collection is sent to controller, controller carries out analyzing and processing according to the information of collecting, and control the opening of blower fan, rotating speed and the action such as to open, without the need to people's hand operated, realize the automatic control to range hood, easy to use, and effectively prevent from, because of the serious consequence that flue gas is revealed or air pollution causes, ensuring personal safety.And fed back by environment designation lamp 40 pairs of quality of air environments, make user recognize room air situation in real time, make range hood more intelligent.
As shown in Figure 2, environment designation lamp 40 is light bar, is provided with multiple light source in light bar, the color of each light source display is different, and controller is according to the air information collected, and the indicator lamp 40 that controls environment shows different colors, visually to user feedback room air situation, make range hood more intelligent.Environment designation lamp 40 also can be set to multiple according to actual needs, and the color that each environment designation lamp 40 shows is different, and controller is according to the air information collected, and the environment designation lamp 40 controlling different colours shows.
As shown in Figure 2, control panel 10 is also provided with gauge tap 50, gauge tap 50 at least includes power switch and speed-regulating switch, and power switch and speed-regulating switch are all electrically connected with controller.User by the opening and closing of power switch manual control range hood, and passes through the size of speed-regulating switch manual control fan delivery, range hood can be controlled automatically, also can carry out manual control, make the use of range hood more flexible.
As shown in Figure 2, range hood also comprises the cabinet 60 that one end is communicated with smoke collecting chamber 20, and blower fan is positioned at cabinet 60.Make the more compact structure of range hood.
In the present embodiment, blower fan comprises the motor of fan and drive fan rotation, and motor and controller are electrically connected.Controller controls the work of blower fan by the keying and rotating speed controlling motor.Controller can also according to actual needs by the work of other structure control blower fans.Being electrically connected both can be wired connection, also can be wireless connections.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a control method for range hood, is characterized in that, range hood comprises the gas sensor be placed in smoke collecting chamber, the controller that is electrically connected with described gas sensor, and the blower fan that is electrically connected of described controller, and this control method comprises the following steps:
(1), setting gas sensor power on for the first time after to air ambient detect first time stationary value as operation a reference value a, the maximum threshold values of gas sensor is Ma, and the minimum threshold values of gas sensor is ma, wherein, Ma=a+c, ma=a+d, c > d;
(2), gas sensor detects in real time the air ambient in smoke collecting chamber, and the instantaneous value b of detection is sent to controller, and as the variation delta b > s of b within the t1 time, controller sends instruction and makes fan starting;
(3), as b >=Ma, step (i) is performed; When Ma > b > ma performs step (ii); As b≤ma, perform step (iii);
I (), controller send instruction makes blower fan improve rotating speed;
(ii), controller sends instruction and makes blower fan reduction rotating speed;
(iii), controller sends instruction blower fan is quit work.
2. the control method of range hood according to claim 1, is characterized in that, in step (ii), after blower fan reduces rotating speed, within the t2 time, controller stops sending instruction.
3. the control method of range hood according to claim 1, is characterized in that, in step (iii), after blower fan quits work, within the t2 time, controller stops sending instruction.
4. the control method of range hood according to claim 3, is characterized in that, after controller sends and makes the out-of-work instruction of blower fan, blower fan quits work after the t3 time.
5. the control method of range hood according to claim 3, is characterized in that, after the t2 time, re-executes step (2) and step (3), circulates according to this.
6. the control method of the range hood according to any one of claim 1 to 5, is characterized in that, described gas sensor is TGS2620 model gas sensor.
7. the controller adopt the range hood of control method as described in any one of claim 1 to 6, it is characterized in that, comprise the gas sensor be placed in smoke collecting chamber, being electrically connected with described gas sensor, and the blower fan that is electrically connected of described controller.
8. range hood according to claim 7, is characterized in that, also comprises control panel, and described control panel is provided with environment designation lamp, and described environment designation lamp and described controller are electrically connected.
9. range hood according to claim 8, is characterized in that, described environment designation lamp is light bar, is provided with multiple light source in described light bar, and the color of each described light source display is different.
10. the range hood according to any one of claim 7 to 9, is characterized in that, described control panel is at least provided with power switch and speed-regulating switch, and described power switch and described speed-regulating switch are all electrically connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034329.0A CN105444237B (en) | 2015-12-31 | 2015-12-31 | Range hood and its control method |
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| CN201511034329.0A CN105444237B (en) | 2015-12-31 | 2015-12-31 | Range hood and its control method |
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| CN105444237A true CN105444237A (en) | 2016-03-30 |
| CN105444237B CN105444237B (en) | 2019-01-15 |
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| CN201511034329.0A Active CN105444237B (en) | 2015-12-31 | 2015-12-31 | Range hood and its control method |
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| CN106152220A (en) * | 2016-08-22 | 2016-11-23 | 珠海格力电器股份有限公司 | Range hood and control method and device thereof |
| CN106933127A (en) * | 2017-01-17 | 2017-07-07 | 杭州老板电器股份有限公司 | A kind of control method of gas sensor |
| CN107165847A (en) * | 2016-05-24 | 2017-09-15 | 九阳股份有限公司 | A kind of lampblack absorber detection blower fan control method |
| CN108662636A (en) * | 2017-03-29 | 2018-10-16 | 博西华电器（江苏）有限公司 | Smoke exhaust ventilator and its control method |
| CN109028238A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of intelligent shift method with vision-based detection module kitchen ventilator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108662636B (en) * | 2017-03-29 | 2021-05-04 | 博西华电器（江苏）有限公司 | Range hood and control method thereof |
| CN109028238A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of intelligent shift method with vision-based detection module kitchen ventilator |
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