CN204806498U - Take range hood control system of kitchen aerial detection function - Google Patents
Take range hood control system of kitchen aerial detection function Download PDFInfo
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- CN204806498U CN204806498U CN201520477448.2U CN201520477448U CN204806498U CN 204806498 U CN204806498 U CN 204806498U CN 201520477448 U CN201520477448 U CN 201520477448U CN 204806498 U CN204806498 U CN 204806498U
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Abstract
The utility model relates to a take range hood control system of kitchen aerial detection function, including system control MCU and with power supply circuit, key signal input circuit, fan drive circuit, lighting drive circuit, display circuit, buzzing cue circuit and air pollution detection module that system control MCU links to each other, the utility model discloses an air detection circuitry's effect, air pollution degree that can real -time detection user kitchen receives when polluting at the kitchen air, in time opens the corresponding gear of fan according to pollution degree, and it is indoor to discharge the pollutant, makes the air quality in kitchen keep in the situation that requires, and useful user's is healthy.
Description
Technical field
The utility model relates to range hood technical field, particularly relates to a kind of range hood control system with air in kitchen measuring ability.
Background technology
The air pollution in kitchen mainly comes from kitchen fume, smog and the burn carbon monoxide, the carbon dioxide that produce; Also has the organic substance such as formaldehyde, benzene that household decoration produces.If it is excessive to suck, the healthy of people can be had a strong impact on, even germinate disease.Thus, market creates the range hood of semi-automatic timing ventilatory, if application number is 201320589372.3, the applying date is 2013.09.23 " having the range hood of ventilatory ", the utility model adopts and is connected with Ultra-Low Speed speed regulator and time switch at the motor of blower fan, thus realize range hood when not working, the low speed being controlled blower fan system interval by time switch and Ultra-Low Speed speed regulator opens ventilation, can by cigarette emptying more than kitchen, prevent oil smoke from pouring in down a chimney, play the effect of purifying air in kitchen simultaneously to a certain extent.But owing to adopting semi-automatic open mode, cannot select the time that blower fan opens and cuts out accurately, this just likely causes: air quality is below standard, but blower fan preset program stops, and causes kitchen air purifying not thorough; Air quality is up to standard, but blower fan preset program is still in execution, causes unnecessary electric energy loss.
Utility model content
For the present situation of above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of range hood that automatically can detect Air Pollution in Kitchen degree, the corresponding gear of blower fan can be opened in time according to the pollution level of air in kitchen, by in pollutant discharge chamber, the air quality in kitchen is made to remain on the situation of requirement.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of range hood control system with air in kitchen measuring ability, the power circuit, push button signalling input circuit, fan drive circuit, illumination driving circuit, display circuit, buzzing cue circuit and the air pollution detection module that comprise Systematical control MCU and be connected with described Systematical control MCU, described in:
Power circuit, for powering for Systematical control MCU and air pollution detection module;
Push button signalling input circuit, user is by this circuit input control signal;
Fan drive circuit, for regulating fan operation rotating speed;
Illumination driving circuit, for the illuminating lamp of switch range hood;
Display circuit, the running status that air pollution degree and blower fan for showing detection are in real time current;
Buzzing cue circuit, for real-time air-polluting alarm and button operation prompting;
Whether air pollution detection module, exceed setting value for detecting Air Pollution in Kitchen degree in real time, exports the comparison processing signals of pollution level;
Systematical control MCU: the pollution level signal that the control chip IC2 for admission of air pollution detection module exports, exports and controls rotation speed of fan signal fan drive circuit after logical operation process; For receiving push button signalling, illumination driving circuit, fan drive circuit are controlled; For controlling the display circuit of push button signalling and air pollution degree signal and buzzing cue circuit.
Further, described air pollution detection module comprises air pollution testing circuit, desorption drive circuit and signal sampling treatment circuit, wherein:
Air pollution testing circuit, this circuit is used for gas concentration being changed the resistance of sensor change caused and is converted to corresponding analog electric signal;
Described desorption drive circuit, this circuit, for recovering the detection sensitivity of sensor, by the desorption mode timing output pwm pulse arranged, carries out desorption process;
Described signal sampling treatment circuit, the analog electric signal of air pollution testing circuit is converted to the digital quantity signal of telecommunication by this circuit, by calculation process, exports pollution level signal, with Systematical control MCU real-time communication.
Further, described air pollution testing circuit comprises air detecting sensors QM1, resistance R5, electric capacity C4; Described desorption drive circuit comprises resistance R2 ~ R4, triode Q1; Described signal sampling treatment circuit comprises single-chip microcomputer IC2, electric capacity C3.
Compared with prior art, the utility model has the advantage of: the utility model is by the effect of air detection circuit, the air pollution degree in kitchen can be detected in real time, when air in kitchen is subject to polluting, the corresponding gear of blower fan is opened in time according to pollution level, by in pollutant discharge chamber, make the air quality in kitchen remain on the situation of requirement, useful user's is healthy.
Accompanying drawing explanation
Fig. 1 is circuit system theory diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of the utility model air pollution detection module;
Fig. 3 is the circuit theory diagrams that the utility model air pollution detects;
Fig. 4 is the flow chart of the utility model air pollution detection method.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based in the utility model being embodiment, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-4, a kind of range hood control system with air in kitchen measuring ability, the power circuit, push button signalling input circuit, fan drive circuit, illumination driving circuit, display circuit, buzzing cue circuit and the air pollution detection module that comprise Systematical control MCU and be connected with described Systematical control MCU, described in:
Power circuit, for powering for Systematical control MCU and air pollution detection module;
Push button signalling input circuit, user is by this circuit input control signal;
Whether air pollution detection module, exceed setting value for detecting Air Pollution in Kitchen degree in real time, exports the comparison processing signals of pollution level;
Fan drive circuit, for regulating fan operation rotating speed;
Illumination driving circuit, for the illuminating lamp of switch range hood;
Display circuit, the running status that air pollution degree and blower fan for showing detection are in real time current;
Buzzing cue circuit, for real-time air-polluting alarm and button operation prompting;
Systematical control MCU: the pollution level signal that the control chip IC2 for admission of air pollution detection module exports, exports and controls rotation speed of fan signal fan drive circuit after logical operation process; For receiving push button signalling, illumination driving circuit, fan drive circuit are controlled; For controlling the display circuit of push button signalling and air pollution degree signal and buzzing cue circuit.
Wherein, described air pollution detection module comprises air pollution testing circuit 1, desorption drive circuit 2 and signal sampling treatment circuit 3 and power circuit, and described air pollution testing circuit 1 is converted to corresponding analog electric signal for gas concentration being changed the resistance of sensor change caused; Described desorption drive circuit 2, for recovering the detection sensitivity of sensor, by the desorption mode timing output pwm pulse arranged, carries out desorption process; The analog electric signal of air pollution testing circuit 1 is converted to the digital quantity signal of telecommunication by described signal sampling treatment circuit 3, by calculation process, exports pollution level signal, with Systematical control MCU real-time communication; Described power circuit is that Systematical control MCU and air pollution detection module are powered.
Described air pollution testing circuit 1 is made up of air detecting sensors QM1, resistance R5, electric capacity C4; Described desorption drive circuit 2 is made up of resistance R2 ~ R4, triode Q1; Described signal sampling treatment circuit 3 is made up of single-chip microcomputer IC2, electric capacity C3.
When range hood powers on, System self-test and initialize after, 7th pin (AN0 port) of chip IC 2 starts the voltage signal gathering A point, this analog quantity voltage signal is different because of the difference of air pollution degree, the A/D built-in through chip IC 2 converts digital quantity signal to, and compare with the acceptable air magnitude of voltage arranged, then by the 3rd pin (PA5 port) of chip IC 2, the 2nd pin (PA6 port) outputs level signals after computing relatively.Port PB1, PB0 Real-Time Monitoring of Systematical control MCU (IC1) is from the level of PA5, PA6 port of chip IC 2: if PA6=" 0 ", PA5=" 0 ", then Electric Machine Control output port PC7=" 0 ", PD0=" 0 ", the PD1=" 0 " of MCU, namely close fan operation; If PA6=" 0 ", PA5=" 1 ", then Electric Machine Control output port PC7=" 1 ", PD0=" 0 ", the PD1=" 0 " of MCU, namely opens blower fan low cruise; If PA6=" 1 ", PA5=" 0 ", then Electric Machine Control output port PC7=" 0 ", PD0=" 1 ", the PD1=" 0 " of MCU, namely opens blower fan middling speed and runs; If PA6=" 1 ", PA5=" 1 ", then Electric Machine Control output port PC7=" 0 ", PD0=" 0 ", the PD1=" 1 " of MCU, namely opens blower fan high-speed cruising.In order to keep the duplicate detection sensitivity of air detecting sensors QM1,5th pin (PWM port) timing output pwm pulse of chip IC 2, the desorption drive circuit through resistance R2 ~ R4, triode Q1 composition carries out desorption process to air detecting sensors OM1.
In embodiment of the present utility model, the control method of a kind of range hood control system utilizing the range hood control system detected with air in kitchen disclosed in utility model to carry out comprises the following steps:
Step S00, power on System self-test and initialization;
Step S01, real-time sampling, detection air pollution degree;
Step S02, compares the air pollution degree in step S01 with setting value 3;
Step S03, if air pollution degree is more than or equal to setting value 3, then opens blower fan high-speed cruising state;
Step S04, if air pollution degree is less than setting value 3, then compares the air pollution degree in step S01 with setting value 2 again;
Step S05, if air pollution degree is more than or equal to setting value 2 and be less than setting value 3, then PAU+FCU system is to middling speed running status;
Step S06, if air pollution degree is less than setting value 2, then compares the air pollution degree in step S01 with setting value 1 again;
Step S07, if air pollution degree is more than or equal to setting value 1 and be less than setting value 2, then PAU+FCU system is to low-speed run state;
Step S08, if air pollution degree is less than setting value 1, then blower fan cuts out and runs.
During work, gas concentration is changed the sensor QM1 change in resistance caused and is converted to corresponding analog electric signal by air pollution testing circuit 1; This analog electric signal is converted to the digital quantity signal of telecommunication by signal sample circuit 3, by comparing, calculation process, exports pollution level signal, and with system MCU real-time communication.The level signal from chip IC 2 that Systematical control MCU detects according to its port PB0, PB1, through logical operation process, export corresponding blower fan drive control signal, control fan operation, in time by contaminated air discharge chamber, the air quality in kitchen is made to remain on the situation of requirement.In order to keep the duplicate detection sensitivity of air detecting sensors QM1, the PWM port timing output pwm pulse of chip IC 2, carries out desorption process through desorption drive circuit 2 couples of air detecting sensors OM1.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, it will be understood by those of skill in the art that it still can be modified to the technical scheme described in aforementioned embodiment, or wherein portion of techniques feature has been replaced on an equal basis; And these amendments or replacement, do not make the essence of appropriate technical solution depart from spirit and the scope of each embodiment technical scheme of the utility model.
Claims (3)
1. the range hood control system with air in kitchen measuring ability, it is characterized in that: the power circuit, push button signalling input circuit, fan drive circuit, illumination driving circuit, display circuit, buzzing cue circuit and the air pollution detection module that comprise Systematical control MCU and be connected with described Systematical control MCU, described in:
Power circuit, for powering for Systematical control MCU and air pollution detection module;
Push button signalling input circuit, user is by this circuit input control signal;
Fan drive circuit, for regulating fan operation rotating speed;
Illumination driving circuit, for the illuminating lamp of switch range hood;
Display circuit, the running status that air pollution degree and blower fan for showing detection are in real time current;
Buzzing cue circuit, for real-time air-polluting alarm and button operation prompting;
Whether air pollution detection module, exceed setting value for detecting Air Pollution in Kitchen degree in real time, exports the comparison processing signals of pollution level;
Systematical control MCU: the pollution level signal that the control chip IC2 for admission of air pollution detection module exports, exports and controls rotation speed of fan signal fan drive circuit after logical operation process; For receiving push button signalling, illumination driving circuit, fan drive circuit are controlled; For controlling the display circuit of push button signalling and air pollution degree signal and buzzing cue circuit.
2. a kind of range hood control system with air in kitchen measuring ability according to claim 1, it is characterized in that: described air pollution detection module comprises air pollution testing circuit (1), desorption drive circuit (2) and signal sampling treatment circuit (3), wherein:
Air pollution testing circuit (1), this circuit is used for gas concentration being changed the resistance of sensor change caused and is converted to corresponding analog electric signal;
Described desorption drive circuit (2), this circuit, for recovering the detection sensitivity of sensor, by the desorption mode timing output pwm pulse arranged, carries out desorption process;
Described signal sampling treatment circuit (3), the analog electric signal of air pollution testing circuit (1) is converted to the digital quantity signal of telecommunication by this circuit, by calculation process, exports pollution level signal, with Systematical control MCU real-time communication.
3. a kind of range hood control system with air in kitchen measuring ability according to claim 2, is characterized in that: described air pollution testing circuit (1) comprises air detecting sensors QM1, resistance R5, electric capacity C4; Described desorption drive circuit (2) comprises resistance R2 ~ R4, triode Q1; Described signal sampling treatment circuit (3) comprises single-chip microcomputer IC2, electric capacity C3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520477448.2U CN204806498U (en) | 2015-07-06 | 2015-07-06 | Take range hood control system of kitchen aerial detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520477448.2U CN204806498U (en) | 2015-07-06 | 2015-07-06 | Take range hood control system of kitchen aerial detection function |
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| CN204806498U true CN204806498U (en) | 2015-11-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990115A (en) * | 2015-07-06 | 2015-10-21 | 浙江康纳电器有限公司 | Control system and control method for extractor hood with function of kitchen air detection |
| CN106873413A (en) * | 2017-01-23 | 2017-06-20 | 北京小米移动软件有限公司 | Smoke exhaust ventilator control method and device |
| CN108151091A (en) * | 2016-12-05 | 2018-06-12 | 台湾樱花股份有限公司 | The Detection of Air Quality method and smoke exhaust ventilator of smoke exhaust ventilator |
| TWI665409B (en) * | 2016-11-23 | 2019-07-11 | 台灣櫻花股份有限公司 | Air quality detection method of range hood and range hood thereof |
-
2015
- 2015-07-06 CN CN201520477448.2U patent/CN204806498U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990115A (en) * | 2015-07-06 | 2015-10-21 | 浙江康纳电器有限公司 | Control system and control method for extractor hood with function of kitchen air detection |
| TWI665409B (en) * | 2016-11-23 | 2019-07-11 | 台灣櫻花股份有限公司 | Air quality detection method of range hood and range hood thereof |
| CN108151091A (en) * | 2016-12-05 | 2018-06-12 | 台湾樱花股份有限公司 | The Detection of Air Quality method and smoke exhaust ventilator of smoke exhaust ventilator |
| CN106873413A (en) * | 2017-01-23 | 2017-06-20 | 北京小米移动软件有限公司 | Smoke exhaust ventilator control method and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zou Jiefeng Inventor after: Zheng Gaohui Inventor before: Zhou Jiefeng Inventor before: Zheng Gaohui |
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| COR | Change of bibliographic data | ||
| CP02 | Change in the address of a patent holder |
Address after: 315000 Ningbo Province, Yuyao City, the streets of the village of low Tong Lishan Mountain Village Patentee after: ZHEJIANG CONNAL ELECTRICAL APPLIANCES CO., LTD. Address before: 315000, Zhejiang City, Ningbo province Yuyao low Tong Street Lishan Village Patentee before: ZHEJIANG CONNAL ELECTRICAL APPLIANCES CO., LTD. |