CN203454248U - Automatic control intelligent range hood with smog sensing device - Google Patents
Automatic control intelligent range hood with smog sensing device Download PDFInfo
- Publication number
- CN203454248U CN203454248U CN201320588393.3U CN201320588393U CN203454248U CN 203454248 U CN203454248 U CN 203454248U CN 201320588393 U CN201320588393 U CN 201320588393U CN 203454248 U CN203454248 U CN 203454248U
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- China
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- circuit
- range hood
- motor drive
- control circuit
- microcomputer control
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Abstract
The utility model discloses an automatic control intelligent range hood with a smog sensing device. The automatic control intelligent range hood comprises a micro computer control circuit, an output and display circuit, a motor driving circuit and a power circuit, wherein the micro computer control circuit is connected with the motor driving circuit. The automatic control intelligent range hood also comprises a smog sensor and a smog sensor signal processing circuit; the smog sensor signal processing circuit is connected with the micro computer control circuit; the micro computer control circuit sends a driving signal to the motor driving circuit. According to the automatic control intelligent range hood with the smog sensing device, change of a resistance value of the smog sensor is used as a control signal input, and the micro computer control circuit is used for controlling the motor driving circuit, so that the aim of adjusting the rotating speed of a range hood motor according to change of lampblack concentration is achieved; the automatic control intelligent range hood has the advantages of convenience in use, high lampblack removal efficiency, electric energy conservation and the like.
Description
Technical field
The utility model relates to range hood technical field, more particularly relates to a kind of band cigarette induction device
automatically control intelligentrange hood.
Background technology
Along with the raising of people's living standard, smoke exhaust ventilator has been a kind of very universal household electrical appliance, and the oil smoke producing while utilizing it can remove culinary art, keeps the clean environment in kitchen.The range hood using in the market all uses ac motor to join mechanical switch or simple circuit board forms, and general rotating speed gear is 2-3 shelves, and its shortcoming is as follows:
1. need staff governor motor rotating speed, operate not convenient.
2. motor rotary speed gear adjustable range is little.
3. intelligent not, comfortableization.
Therefore, the cigarette machine that oil smoke amount, vapour quantity, gas leakage amount and other unusual odor etc. of a kind of energy of market demand sensing cooking environment change, can adjust lampblack absorber motor automatically to the intelligent range hood of suitable rotating speed.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of and automatically control intelligent range hood with smoke sensing device, its the energy interchange of automatic control type kitchen ventilator or rotating speed of direct current DC motor, thereby can automatically regulate smoke exhaust ventilator draft, be a intelligent range hood easy to use, reliable.
In order to achieve the above object, the technical solution of the utility model is such: a kind of with the intelligent range hood of the automatic control of smoke sensing device, comprise microcomputer control circuit, output and display circuit, motor drive circuit and power circuit, described microcomputer control circuit connecting motor drive circuit, also comprise Smoke Sensor, Smoke Sensor signal processing circuit, described Smoke Sensor signal processing circuit connects microcomputer control circuit, by microcomputer control circuit, is sent and is driven signal to motor drive circuit.
Described motor drive circuit drives interchange or direct current DC motor as output loading.
Described Smoke Sensor signal processing circuit comprises sensor detection circuit and voltage amplifier circuit.
Described motor drive circuit arranges eight grades of drivings.
Described Smoke Sensor signal processing circuit is converted into voltage signal by the resistance signal of Smoke Sensor, by microcomputer control circuit, is calculated corresponding PWM dutycycle, is sent driving signal to motor drive circuit.
When described microcomputer control circuit output PWM dutycycle is 5.59%, motor drive circuit sends one grade and drives signal; When microcomputer control circuit output PWM dutycycle is 94.97%, motor drive circuit sends eight grades and drives signal.
When described microcomputer control circuit output PWM dutycycle is within the scope of 17.31%--84.355% time, number range is divided into six range sections by ascending order, motor drive circuit segmentation is sent two to seven grades and is driven signals.
The beneficial effects of the utility model are: the utility model can be on the architecture basics of existing range hood, by increasing Smoke Sensor, Smoke Sensor signal processing circuit, utilize the variation of Smoke Sensor resistance as the input of control signal, by microcomputer control circuit, calculate corresponding PWM dutycycle, send driving signal to motor drive circuit, thereby realize according to oil smoke concentration, change and regulate lampblack absorber motor wind speed, have easy to use, fume eliminating efficiency is high, save the advantages such as electric energy.
Accompanying drawing explanation
Fig. 1 is that the utility model band smoke sensing device is controlled the Smoke Sensor internal circuit configuration figure of intelligent range hood automatically.
Fig. 2 is the signal processing circuit figure of the Smoke Sensor shown in Fig. 1.
Fig. 3 is the microcomputer control circuit figure of range hood of the present utility model.
Fig. 4 is the controlling party block diagram of the range hood of the utility model band cigarette induction device.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1-4, the utility model band smoke sensing device is automatically controlled intelligent range hood and is comprised microcomputer control circuit 4, output and display circuit, motor drive circuit 6 and power circuit 5, described microcomputer control circuit connecting motor drive circuit, also comprise Smoke Sensor 1, Smoke Sensor signal processing circuit 2, described Smoke Sensor signal processing circuit 2 connects microcomputer control circuit 4, described Smoke Sensor signal processing circuit is converted into voltage signal by the resistance signal of Smoke Sensor, by microcomputer control circuit, calculate corresponding PWM dutycycle, send and drive signal to motor drive circuit 6.Motor drive circuit 6 drives interchange or direct current DC motor as output loading, and motor drive circuit arranges eight grades of drivings.Described Smoke Sensor signal processing circuit comprises sensor detection circuit and voltage amplifier circuit.
Circuit working principle is: referring to Fig. 1-3, the resistance of Smoke Sensor resistance R s is understood according to the variation of the environment detecting and difference, warp and resistance R
lafter dividing potential drop, will be converted into voltage signal V
rL.Referring to Fig. 2, the voltage signal V of Smoke Sensor resistance R s
rLthrough operational amplifier LM358, amplify, after voltage amplification, by 1 pin of operational amplifier LM358, exported, this voltage is connected to the P27 pin of the microcomputerized control chip of microcomputer control circuit, chip calculates corresponding PWM dutycycle by house software formula, by P17 pin, export M-X to motor drive circuit, motor drive circuit is selected suitable gear according to PWM dutycycle again, realizes the object of automatic governor motor rotating speed.
Below, then describe the course of work of the present utility model in detail:
Sensor detects: testing environment, and variable quantity is converted to voltage signal amount V
rL.
Voltage amplification part: the V sampling
rLvoltage amplifies by amplifier LM358.
Microcomputer control circuit: comprise key circuit etc., by the voltage JC1 input AD port P20 of amplifier LM358 output, by software analysis, processing regulation output PWM dutycycle, this pwm signal inputs to motor drive circuit, controls the rotating speed of motor with this.
The control method of software is: after Smoke Sensor powers on, under off working state, after 5 minutes, gather the initial parameter of initial voltage value VE, and as initiation parameter, when Smoke Sensor is exported data magnitude of voltage in different range, motor Yun Hang not with different shelves.Specific as follows: 1.10 times (being considered as normality) of output data magnitude of voltage < VE, microcomputer control circuit output PWM dutycycle is 5.59%, motor is with one grade of operation; 1.10 times of < of VE export 1.40 times of data magnitude of voltage < VE, microcomputer control circuit output PWM dutycycle is respectively 17.31%, 28.49%, 39.67%, 50.83%, 62.01%, 73.18%, 84.355 o'clock, motor gear is mean allocation between two to seven grades; When 1.40 times of output data magnitude of voltage >VE, microcomputer control circuit output PWM dutycycle is 94.97%, opens eight grades.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.Utility model can also have other embodiment in addition to the implementation.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the utility model scope required for protection.
Claims (7)
1. with smoke sensing device, automatically control intelligent range hood for one kind, comprise microcomputer control circuit, output and display circuit, motor drive circuit and power circuit, described microcomputer control circuit connecting motor drive circuit, it is characterized in that: also comprise Smoke Sensor, Smoke Sensor signal processing circuit, described Smoke Sensor signal processing circuit connects microcomputer control circuit, by microcomputer control circuit, is sent and is driven signal to motor drive circuit.
2. range hood according to claim 1, is characterized in that: described motor drive circuit drives interchange or direct current DC motor as output loading.
3. range hood according to claim 1, is characterized in that: described Smoke Sensor signal processing circuit comprises sensor detection circuit and voltage amplifier circuit.
4. range hood according to claim 1, is characterized in that: described motor drive circuit arranges eight grades of drivings.
5. range hood according to claim 1, it is characterized in that: described Smoke Sensor signal processing circuit is converted into voltage signal by the resistance signal of Smoke Sensor, by microcomputer control circuit, calculate corresponding PWM dutycycle, send driving signal to motor drive circuit.
6. range hood according to claim 5, is characterized in that: when described microcomputer control circuit output PWM dutycycle is 5.59%, motor drive circuit sends one grade and drives signal; When microcomputer control circuit output PWM dutycycle is 94.97%, motor drive circuit sends eight grades and drives signal.
7. range hood according to claim 5, it is characterized in that: when described microcomputer control circuit output PWM dutycycle is within the scope of 17.31%--84.355% time, number range is divided into six range sections by ascending order, and motor drive circuit segmentation is sent two to seven grades and is driven signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588393.3U CN203454248U (en) | 2013-09-24 | 2013-09-24 | Automatic control intelligent range hood with smog sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588393.3U CN203454248U (en) | 2013-09-24 | 2013-09-24 | Automatic control intelligent range hood with smog sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203454248U true CN203454248U (en) | 2014-02-26 |
Family
ID=50134118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588393.3U Expired - Fee Related CN203454248U (en) | 2013-09-24 | 2013-09-24 | Automatic control intelligent range hood with smog sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203454248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006431A (en) * | 2014-04-28 | 2014-08-27 | 四川长虹电器股份有限公司 | Automatic wind speed adjustment method of smoke ventilator |
-
2013
- 2013-09-24 CN CN201320588393.3U patent/CN203454248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006431A (en) * | 2014-04-28 | 2014-08-27 | 四川长虹电器股份有限公司 | Automatic wind speed adjustment method of smoke ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20180924 |