CN205717438U - A kind of kitchen range that detect are opened fire and the detection device of firepower size and lampblack absorber - Google Patents
A kind of kitchen range that detect are opened fire and the detection device of firepower size and lampblack absorber Download PDFInfo
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- CN205717438U CN205717438U CN201620547145.8U CN201620547145U CN205717438U CN 205717438 U CN205717438 U CN 205717438U CN 201620547145 U CN201620547145 U CN 201620547145U CN 205717438 U CN205717438 U CN 205717438U
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Abstract
This utility model relates to a kind of kitchen range that detect and opens fire and the detection device of firepower size, comprises the infrared receiver probe for collecting flame characteristic signal；For the filter circuit of filtering interference signals, the input of filter circuit is connected with the outfan of infrared receiver probe, filter circuit output for target detection signal；For the signal amplification circuit being amplified target detection signal, the input of signal amplification circuit is connected with the outfan of filter circuit；For the frequency of target detection signal, amplitude and peak-to-peak value are identified the characteristic identification circuit judged, the input of characteristic identification circuit is connected with the outfan of signal amplification circuit.This utility model further relates to a kind of lampblack absorber comprising above-mentioned detection device.Compared with prior art, the utility model has the advantage of: whether can be opened and firepower size by this contactless method detection kitchen range of infrared receiver probe, low cost, response is quick and precisely.
Description
Technical field
This utility model relates to a kind of detection device, particularly relates to a kind of kitchen range that detect and opens fire and the detection of firepower size
Device and application have the lampblack absorber of above-mentioned detection device.
Background technology
In existing gas-cooker, it is provided with and is mostly provided with flame detection modules to detect whether gas-cooker stops working, if detection
To kitchen range stop working time, in time notice gas valve is closed in order to avoid causing gas leakage.The Cleaning Principle of above-mentioned flame detection modules is past
Toward being to measure kitchen range temperature by pyroelectric sensor, judging that when temperature is less than threshold value kitchen range stop working, this detection mode is only
Can determine that whether kitchen range stop working, the size of kitchen range flame can not be differentiated.Also having a kind of flame detector, its Cleaning Principle is profit
Can be strong with the radiation luminous energy produced during flame combustion, use probe to receive the radiation that flame sends, big according to its intensity
The presence or absence of little judgement flame, owing to detecting the difference of wave band, can be divided into ultraviolet, visible ray, infrared ray and total radiation
Fire defector.Then after gas-cooker is opened fire, the combustion process of flame is highly unstable, and the radiant intensity of Fire Radiation is in
Among moment change, it is difficult to accurate to measure kitchen range flame size.
Utility model content
To be solved in the utility model primarily technical problem is that provides one to pass through noncontact for above-mentioned prior art
Whether the method detection kitchen range of formula are opened and the detection device of firepower size.
The further technical problem to be solved of this utility model is to provide a kind of application the oil smoke of above-mentioned detection device
Machine.
The technical scheme that the above-mentioned primary technical problem of this utility model solution is used is: a kind of detection kitchen range are opened fire and fire
The detection device of power size, it is characterised in that: comprise
For collecting the infrared receiver probe of flame characteristic signal,
For the filter circuit of filtering interference signals, the input of filter circuit connects with the outfan of infrared receiver probe
Connect, filter circuit output for target detection signal；
For the signal amplification circuit that target detection signal is amplified, the input of signal amplification circuit and filtered electrical
The outfan on road connects；
For the frequency of target detection signal, amplitude and peak-to-peak value being identified the characteristic identification circuit judged, feature
The input of identification circuit is connected with the outfan of signal amplification circuit.
As improvement, described infrared receiver probe uses centre wavelength to be the light sensitive diode of 850nm or 940nm or photosensitive
Audion.
Improving, described characteristic identification circuit includes frequency comparator, magnitude comparator and peak-to-peak value comparator again, letter
Number outfan of amplifying circuit is connected with the input of frequency comparator, and the outfan of frequency comparator is defeated with magnitude comparator
Entering end to connect, the outfan of magnitude comparator is connected with the input of peak-to-peak value comparator, is known by the signal of 10Hz～100Hz
Not for signal of opening fire；Magnitude comparator and peak-to-peak value comparator and then signal big to amplitude in signal of opening fire and peak-to-peak value is known
Not Wei big fire signal, signal little to amplitude in signal of opening fire and peak-to-peak value is identified as little fire signal.
The technical scheme that the above-mentioned further technical problem of this utility model solution is used is: a kind of lampblack absorber, comprises wind
Machine and the lampblack absorber main control unit of rotation speed of fan can be controlled, it is characterised in that: described lampblack absorber main control unit connects above-mentioned energy
Detection kitchen range open fire and the detection device of firepower size, detection device infrared receiver probe aim detecting stove open fire after flame
Region.
Compared with prior art, the utility model has the advantage of: can be this contactless by infrared receiver probe
Whether method detection kitchen range are opened and firepower size, and low cost, response is quick and precisely.
Accompanying drawing explanation
Fig. 1 is to detect kitchen range in this utility model embodiment to open fire and the module frame chart detecting device of firepower size.
Fig. 2 is the block diagram of characteristic identification circuit in this utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Detection kitchen range as shown in Figure 1 are opened fire and the detection device of firepower size, and it comprises
For collecting the infrared receiver probe 1 of flame characteristic signal, this infrared receiver probe 1 uses the centre wavelength to be
The light sensitive diode of 850nm or 940nm or phototriode；
For the filter circuit 2 of filtering interference signals, the input of filter circuit connects with the outfan of infrared receiver probe
Connect, filter circuit output for target detection signal；
For the signal amplification circuit 3 that target detection signal is amplified, the input of signal amplification circuit and filtering
The outfan of circuit connects；
For the frequency of target detection signal, amplitude and peak-to-peak value being identified the characteristic identification circuit 4 judged, institute
State characteristic identification circuit and include frequency comparator 41, magnitude comparator 42 and peak-to-peak value comparator 43, participate in shown in Fig. 2, letter
Number outfan of amplifying circuit is connected with the input of frequency comparator, and the outfan of frequency comparator is defeated with magnitude comparator
Entering end to connect, the outfan of magnitude comparator is connected with the input of peak-to-peak value comparator；Frequency comparator 41 is by target detection
Signal identification medium frequency is that the signal of 10Hz～100Hz is identified as signal of opening fire, magnitude comparator 42 and peak-to-peak value comparator 43
And then signal big to amplitude in signal of opening fire and peak-to-peak value is identified as big fire signal, amplitude and peak-to-peak value in signal of opening fire
Little signal is identified as little fire signal；
Above-mentioned filter circuit 2, signal amplification circuit 3 and characteristic identification circuit 4 use existing conventional electronic form.
The size opened fire due to kitchen range enters infrared receiver in causing the change of flame combustion severe degree, unit interval and visits
The infra-red intensity of head also can change, and the signal characteristic of reflection then shows as the change of amplitude and peak-to-peak value, works as amplitude
When becoming big with peak-to-peak value, it is believed that firepower becomes big, otherwise thinks that firepower is turned down；Wherein, the change of peak-to-peak value is basic and background is believed
Number intensity is unrelated, can directly reflect the power of firepower.Characteristic identification circuit by the variable quantity stepping of amplitude and peak-to-peak value, and
Carry out corresponding with firepower size, the firepower gear that output detections arrives.
Application has the lampblack absorber of above-mentioned detection device, comprises blower fan and can control the lampblack absorber main control unit of rotation speed of fan,
Described lampblack absorber main control unit connects the detection device with said structure, the infrared receiver probe aim detecting of detection device
Stove open fire after flame region, the outfan of characteristic identification circuit 4 is connected with lampblack absorber main control unit, lampblack absorber main control unit root
Judge whether gas-cooker opens fire and firepower size according to detection device, thus the rotating speed of blower fan is adjusted accordingly.
Claims (4)
1. one kind is detected kitchen range and opens fire and the detection device of firepower size, it is characterised in that: comprise
For collecting the infrared receiver probe of flame characteristic signal；
For the filter circuit of filtering interference signals, the input of filter circuit is connected with the outfan of infrared receiver probe, filter
Wave circuit output for target detection signal；
For the signal amplification circuit that target detection signal is amplified, the input of signal amplification circuit and filter circuit
Outfan connects；
For the frequency of target detection signal, amplitude and peak-to-peak value being identified the characteristic identification circuit judged, feature identification
The input of circuit is connected with the outfan of signal amplification circuit.
Detection device the most according to claim 1, it is characterised in that: described infrared receiver probe employing centre wavelength is
The light sensitive diode of 850nm or 940nm or phototriode.
Detection device the most according to claim 1, it is characterised in that: described characteristic identification circuit includes frequency ratio relatively
Device, magnitude comparator and peak-to-peak value comparator, the outfan of signal amplification circuit is connected with the input of frequency comparator, frequently
The outfan of rate comparator is connected with the input of magnitude comparator, the outfan of magnitude comparator and peak-to-peak value comparator
Input connects.
4. application has the right to detect described in requirement 1 lampblack absorber for device, comprises blower fan and can control the oil smoke of rotation speed of fan
Machine main control unit, it is characterised in that: described lampblack absorber main control unit connects to be had and detects device as claimed in claim 1, detection
The infrared receiver probe aim detecting stove of device open fire after flame region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620547145.8U CN205717438U (en) | 2016-06-07 | 2016-06-07 | A kind of kitchen range that detect are opened fire and the detection device of firepower size and lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620547145.8U CN205717438U (en) | 2016-06-07 | 2016-06-07 | A kind of kitchen range that detect are opened fire and the detection device of firepower size and lampblack absorber |
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| Publication Number | Publication Date |
|---|---|
| CN205717438U true CN205717438U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620547145.8U Active CN205717438U (en) | 2016-06-07 | 2016-06-07 | A kind of kitchen range that detect are opened fire and the detection device of firepower size and lampblack absorber |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN109579090A (en) * | 2018-12-06 | 2019-04-05 | 李珊珍 | The smoking adaptive adjustment mechanism of wind-force |
| CN110631077A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔智慧厨房电器有限公司 | Smoke stove linkage type air curtain range hood |
-
2016
- 2016-06-07 CN CN201620547145.8U patent/CN205717438U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN110631077A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔智慧厨房电器有限公司 | Smoke stove linkage type air curtain range hood |
| CN110631077B (en) * | 2018-06-25 | 2021-09-14 | 青岛海尔智慧厨房电器有限公司 | Smoke stove linkage type air curtain range hood |
| CN109579090A (en) * | 2018-12-06 | 2019-04-05 | 李珊珍 | The smoking adaptive adjustment mechanism of wind-force |
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