CN206001557U - The lampblack absorber of oil smoke concentration can be detected - Google Patents
The lampblack absorber of oil smoke concentration can be detected Download PDFInfo
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- CN206001557U CN206001557U CN201620546861.4U CN201620546861U CN206001557U CN 206001557 U CN206001557 U CN 206001557U CN 201620546861 U CN201620546861 U CN 201620546861U CN 206001557 U CN206001557 U CN 206001557U
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Abstract
This utility model is related to a kind of lampblack absorber that can detect oil smoke concentration, including housing, it is provided with exhaust fume collecting hood below housing, the main control unit being provided with blower fan in housing and rotation speed of fan being controlled, the photo-electric oil smoke sensor that can detect oil smoke concentration being connected with main control unit is additionally provided with housing, this photo-electric oil smoke sensor comprises to detect light emitting devices and detection optical pickup apparatus, detection light emitting devices tool can launch the light emission part of detection light, and detection optical pickup apparatus have the light receiver portion that can receive the detection light that light emission part sends；It is characterized in that：Described detection light emitting devices and detection optical pickup apparatus are mutually aligned the two opposite sides being arranged on exhaust fume collecting hood or enclosure interior flue two opposite sides；Described detection light emitting devices or/and detection optical pickup apparatus also include safeguard structure.In this utility model, the resistance to greasy dirt effect of photo-electric oil smoke sensor is good.
Description
Technical field
This utility model is related to a kind of lampblack absorber, more particularly to a kind of lampblack absorber that can detect oil smoke concentration.
Background technology
The Based Intelligent Control of existing lampblack absorber depends on sensor dense to relevant environment index such as gas concentration, oil smoke mostly
The accurate detection of degree, temperature, odorousness, Range switch etc..Wherein, realize opening and closing automatically of lampblack absorber mainly to pass through
Detect that these indexs are mutated from scratch, and automatically control the rotating speed of range hood fan or gear then mainly according to index value
Size.
For example, the Chinese patent of Patent No. 20111003374.0 is it is proposed that a kind of Smoke Detection system based on photographic head
System, can detect the size of amount of smoke, then automatically control lampblack absorber work according to smokescope.In the program, need to arrange
Photographic head, to gather the image of the lampblack absorber kitchen range top in kitchen, then also needs to arrange Smoke Detection unit that the image gathering is entered
Row analyzing and processing, then determines whether, if has oil smoke to produce, then by amount of smoke analytic unit, the concentration of smog is entered
Row analysis, finally according to analysis result intelligent opening or closing lampblack absorber.In the program, need the complicated Smoke Detection list of setting
Unit and amount of smoke analytic unit, and photographic head collection be the lampblack absorber kitchen range top in kitchen image, and the lampblack absorber kitchen range top is most
It is non-smooth, and during cooking, food materials can constantly stir, the background after therefore shooting is more complicated, be unfavorable for follow-up
The analysis of Smoke Detection unit and follow-up amount of smoke analytic unit judges, relatively costly, judges inaccurate.
Further for example, the Chinese patent of Patent No. 201410519856.X, the pan by being arranged on gas-cooker is proposed
The bottom of a pan temperature sensor, real-time detection cooking bottom temperature, gas-cooker main control unit can be examined according to cooking bottom temperature testing circuit
The cooking bottom temperature measuring calculates oil smoke amount, and then oil smoke amount information is passed through wireless signal transmitting module by gas-cooker main control unit
It is sent to reception of wireless signals module, reception of wireless signals module and then oil smoke amount information is sent to lampblack absorber main control list
Unit, lampblack absorber main control unit controls fan according to oil smoke amount information.
Further for example, the Chinese patent of patent No. 201280006420.X provides a kind of gratin according to heating device
Temperature, to change the smoke exhaust ventilator of the air quantity of pressure fan, detects gratin temperature and the cooking by arranging infrared temperature sensor
The mean temperature of thing environment temperature and the environment temperature of detection heating device, determine according to gratin temperature and cooking device signal
Determine the air quantity of pressure fan.
Further for example, the patent of Application No. 201110061478.1 proposes with regard to a kind of cigarette stove coordinated control system and its control
Molding group, lampblack absorber has a wind-force adjustment unit, control module include temperature-sensitive sticker, control unit, signal transmitter unit with
Signal receiving unit, temperature-sensitive sticker is corresponding with kitchen range, control unit respectively with temperature-sensitive sticker and signal transmitter unit phase
Even, control unit receives and processes temperature signal from temperature-sensitive sticker to obtain wind-force Regulate signal, wind-force Regulate signal
It is transferred to signal transmitter unit.
The deficiency of above method is to detect that kitchen range, the sensor of pan state are detached with lampblack absorber, need to be by letter
Breath transmission could control switch for cooker hood, and this will bring the increase of cost and the matching problem of kitchen range pan and lampblack absorber；Separately
On the one hand, the index for controlling lampblack absorber air quantity is often the index of indirect, such as food materials temperature, pan temperature, kitchen range temperature
The indexs such as degree and exhaustion drain and there is not strong correlation relation between oil smoke Air Quantity Required, control judgement inaccurate.
For this reason, the Chinese patent of Patent No. ZL 201420325713.0, disclosing one kind, directly to gather oil smoke dense
Spend and then carry out according to oil smoke concentration the Intelligent drainage cigarette lampblack absorber of wind speed regulation, it includes body, blower fan and master controller, main
Controller controls blower fan operating, and this lampblack absorber also includes：Infrared spectrum sensor-based system, infrared spectrum sensor-based system includes infrared light
Emission part, infrared light receiver, optical sensor system and spectroscopic analysis system, the infrared light of described infrared light emission portion transmitting is extremely
Behind oil smoke region below body, reflect through oil smoke or by oil smoke, infrared light receiver receives this transmission or reflection light and leads to
Cross optical sensor system to transmit to spectroscopic analysis system, the spectrum calculating smog that this system passes through the infrared light that analysis receives is dense
Degrees of data, and by this data transfer to master controller；Master controller includes speed calculation unit, and this computing unit is divided by spectrum
The smokescope data judging blower fan gear that analysis system calculates, and according to blower fan gear output drive signal；Drive circuit, with master
Controller connects, and drives blower fan to press corresponding rotation speed operation by receiving the drive signal of speed calculation unit.
In said structure, infrared spectrum sensor-based system detects oil smoke concentration, therefore, infrared light emission portion and infrared light-receiving
Portion needs to contact with oil smoke, and infrared light emission portion and infrared light receiver unavoidably face contaminated situation, thus can lead
Cause sensitivity to decline the risk even losing efficacy, and the infrared light that infrared light emission portion sends needs accurately by infrared light receiver
Receive it is therefore desirable to high requirement is proposed to beam path alignment and receptor anti-natural light jamming performance.Although Application No.
200510042977.0 Chinese patent discloses a kind of air-flow and closes protection device dust-proof every formula pick-up lenss, is equipped with clean
The conical ring flow generator of pure compression air source and adjustable flow, protects camera lens by air-flow to the blocking effect of dust；Shen
Please number for 200520132940.2 Chinese patent employ similar method pass through high pressure pure air stream formed air curtain
Protection photo-electric smoke concentration measurer, makes optics not contaminated.The deficiency of above safeguard structure is, needs additional
Clean air source, producing of pure air is very complicated, and needs additionaling power source by pure air access equipment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of the resistance to of oil smoke sensor for above-mentioned prior art
The good lampblack absorber that can detect oil smoke concentration of greasy dirt effect.
This utility model solves the technical scheme that adopted of above-mentioned technical problem：A kind of oil smoke that can detect oil smoke concentration
Machine, including housing, is provided with exhaust fume collecting hood below housing, the main control unit being provided with blower fan in housing and controlling rotation speed of fan, housing
On be additionally provided with the photo-electric oil smoke sensor that can detect oil smoke concentration being connected with main control unit, this photo-electric oil smoke sensor bag
The light emitting devices containing detection and detection optical pickup apparatus, detection light emitting devices tool can launch the light emission part of detection light, inspection
Light-metering reception device has the light receiver portion that can receive the detection light that light emission part sends；It is characterized in that：Described detection
Light emitting devices are mutually aligned the two opposite sides being arranged on exhaust fume collecting hood with detection optical pickup apparatus or enclosure interior flue two is relative
Side；Described detection light emitting devices or/and detection optical pickup apparatus also include safeguard structure, and this safeguard structure comprises inside to be had
The protective cover of cavity, one end of protective cover is provided with the first opening connecting with cavity, and the other end of protective cover is provided with to be opened with first
The second opening that mouth is relative, equally connect with cavity, described light emission part or/and light receiver portion are plugged in the first opening
Interior.
As improvement, described light emission part or/and the sealing of light receiver portion are plugged in the first opening, such protective cover
Inner chamber has a malleation for tangentially swiftly flowing oil smoke air-flow, and oil smoke only can enter in pipe by natural diffuseness,
Greatly reduce the contaminated probability of probe.
Improve again, described protective cover is in the form of a column or tubulose, the cavity in protective cover is cylindrical cavity or tubular cavity.
Improve again, the internal diameter of the cavity between connection the first opening and the second opening presents and changes, the sky of internal diameter change
Chamber can form optics labyrinth, oil smoke sensor emission can pop one's head in the uncollimated light sending through internal reflection elimination, thus
Ensure the collimation of emergent light, sensor receiving transducer is said, then can greatly reduce natural light and the docking of environment veiling glare
The impact of the collection of letters number；The probability reaching probe by the oil smoke diffusing into protective cover inner chamber can also be made to substantially reduce simultaneously.
As the preferable scheme of one of which, the internal diameter connecting the cavity between the first opening and the second opening presents N
Secondary first reduce the change expanding again, N is the natural number more than or equal to 1.Cavity inside diameter through reducing expansion change, in oil smoke by the
When two openings enter cavity, oil smoke obtains the diffusion motive force of radial direction, and most of oil smoke entering in pipe is diluted simultaneously in this section
It is attached to inside pipe wall, when cavity inside diameter reduces, the wall of radial direction blocks a part of oil smoke again, so circulate through n times, can
So that by diffusing into the reduction that the oil smoke in cavity reaches the Probability maximum of sensor probe.
As another kind of preferably embodiment, the cavity inner wall between connection the first opening and the second opening is provided with relatively
The N of setting, to dividing plate, is respectively provided with gap, N is the natural number more than or equal to 1 between each pair dividing plate.Oil smoke can be passed by this structure
The uncollimated light that sensor transmitting probe sends eliminates through n times internal reflection, thus ensureing the collimation of emergent light, for biography
Sensor receiving transducer is said, then can greatly reduce the impact to receipt signal of natural light and environment veiling glare.
When N is more than or equal to 2, the gap between adjacent two pairs of dividing plates differs.
N is on same straight line with the center of the first opening and the second opening to the center in gap between dividing plate.
Alternatively preferable embodiment, is provided with N number of in the cavity between connection the first opening and the second opening
Barrier plate, each barrier plate has through hole, and N is the natural number more than or equal to 1.
When N is more than or equal to 2, on two neighboring barrier plate, the diameter of through hole differs.
The central point of the through hole central point on N number of barrier plate and the first opening and the second opening be in same directly on.
Alternatively preferable embodiment, the pipe thickness of described protective cover assumes change, so that connection first
The internal diameter of the cavity between opening and the second opening assumes change.
Described light emission part can be light emitting diode or the laser tube that can send infrared light, and light receiver portion used is
Infrared light or the diode or triode of laser that energy corresponding reception light emission part sends.
As improvement, described photo-electric oil smoke sensor also includes and detects light emitting devices and detect optical pickup apparatus
Sensor circuit board, the power input of this sensor circuit board is electrically connected with city, the power output end of this sensor circuit board
It is connected with detection light emitting devices and detection optical pickup apparatus, in addition, having on this sensor circuit board and detection light-receiving dress
Put the reception detection optical signal processing unit of connection, receive what detection optical signal processing unit can receive to detection optical pickup apparatus
Detection optical signal is amplified and opto-electronic conversion is processed, and receives detection optical signal processing unit and is connected with main control unit.
Compared with prior art, the utility model has the advantage of：Protect detection light transmitting/reception dress by arranging user
Put the safeguard structure of head, the cavity of setting connection the first opening and the second opening in protective cover, then detection light is launched/
The head of reception device is plugged in the first opening, and such light emission part or/and light receiver portion will not be directly exposed to oil
In flue gas stream, and oil smoke only can enter the cavity of protective cover by natural diffuseness, greatly reduces light emission part or/and light
The contaminated probability of line acceptance division, has preferably dust-proof, grease proofing smoke pollution effect.
Brief description
Fig. 1 is the internal structure schematic diagram of the lampblack absorber that can detect oil smoke concentration in this utility model embodiment one.
Fig. 2 is the structural representation of photo-electric oil smoke sensor in this utility model embodiment one.
Fig. 3 is the structural representation of photo-electric oil smoke sensor in this utility model embodiment two.
Fig. 4 is the structural representation of photo-electric oil smoke sensor in this utility model embodiment three.
Fig. 5 is the structural representation of this utility model embodiment another kind safeguard structure.
Fig. 6 is the structural representation of this utility model another safeguard structure of embodiment.
Fig. 7 is the structural representation of this utility model another safeguard structure of embodiment.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Embodiment one
The as shown in Figure 1 lampblack absorber that can detect oil smoke concentration, including housing 1, is provided with blower fan 2 and can control wind in housing
The main control unit (not shown) of machine rotating speed, is provided with exhaust fume collecting hood 3 below housing 1；Described main control unit is also associated with detecting
The photo-electric oil smoke sensor of oil smoke concentration, this photo-electric oil smoke sensor comprises to detect light emitting devices 4, detection light-receiving dress
Put the sensor circuit board (not shown) of 5 and detection optical pickup apparatus connection, detection light emitting devices 4 tool can launch detection
The light emission part 41 of light, detection optical pickup apparatus 5 have the light receiver portion that can receive the detection light that light emission part sends
51；The power input of sensor circuit board is electrically connected with city, and the power output end of this sensor circuit board is launched with detection light
Device and detection optical pickup apparatus connect, in addition, having reception detection optical signal processing unit on sensor circuit board, receive inspection
The light signal that light receiver portion receives is amplified processing by light signal processing unit, and light signal is converted into oil smoke
Concentration signal, receives the signal processing and amplifying technology detecting optical signal processing unit employing and photoelectric conversion technique all using often
Rule technology；Described detection light emitting devices 4 are arranged on the two opposite sides of exhaust fume collecting hood 3 with detection optical pickup apparatus 5 after being mutually aligned.
Described detection light emitting devices 4 also include the safeguard structure for being protected to light emission part 41, referring to Fig. 2
Shown, this safeguard structure comprises tubular protective cover 61, has tubular cavity 62, one end of tubular protective cover inside tubular protective cover
Be provided with the first opening 63 connecting with tubular cavity, the other end of tubular protective cover be provided with relative with the first opening, same with
Second opening 64 of tubular cavity connection, light emission part 41 is sealingly mounted in the first opening.Connect the first opening and second
The internal diameter of the cavity between opening presents and changes；In the present embodiment, the change of this internal diameter is realized in the following way：Tubulose is empty
It is provided with barrier plate 66 in the middle part of chamber, this barrier plate has through hole, the through hole central point on barrier plate is opened with the first opening and second
Mouthful central point be in same directly on.
Safeguard structure in detection light emitting devices, is designed by deep cavate, so that the light of detection light emitting devices 4 is launched
Portion 41 will not be directly exposed in oil smoke air-flow, and light emission part 41 installation end seals, and makes tubular protective cover inner chamber with respect to cutting
There is a malleation to for swiftly flowing oil smoke air-flow, oil smoke only can be entered in pipe by natural diffuseness, greatly reduces light
The contaminated probability of line emission part 41；The design of barrier plate 66, makes tubular intracavity internal diameter change, is opened by second in oil smoke
When mouth enters cavity, oil smoke obtains the diffusion motive force of radial direction, and most of oil smoke entering in pipe is diluted in this section and adheres to
In inside pipe wall, when cavity inside diameter intercepts through barrier plate, the through hole on barrier plate carries out next step infiltration to oil smoke again, stops
The wall of plate blocks a part of oil smoke again, can make to reach the probability of light emission part by diffusing into the oil smoke in cavity
Greatly reduce.The uncollimated light that light emission part 41 sends can also be disappeared by this structure through the internal reflection of barrier plate
Remove, thus ensureing the collimation of emergent light.
Detection optical pickup apparatus 5 equally include the safeguard structure for being protected to light receiver portion 51, and detection light connects
Safeguard structure in receiving apparatus 5 is identical with the safeguard structure in detection light emitting devices；Protection knot in detection optical pickup apparatus 5
Structure can eliminate the impact that natural light and environment veiling glare receive optical signal to light receiver portion 51.
In the present embodiment, described light emission part is light emitting diode or the laser tube that can send infrared light, light used
Acceptance division is to correspond to the diode or triode receiving the infrared light that sends of light emission part or laser.
Embodiment two
From unlike embodiment one, only detection light emitting devices 4 are provided with the protection for protecting light emission part 41
Structure, the structure that safeguard structure is described with embodiment one is identical, shown in Figure 3.
Embodiment three
From unlike embodiment one, only detection optical pickup apparatus 5 are provided with the protection for protecting light receiver portion 51
Structure, the structure that safeguard structure is described with embodiment one is identical, shown in Figure 4.
In addition, safeguard structure is in addition to the structure described in embodiment one, can also there are other forms：As tubular cavity
Interior barrier plate 66 can be provided with multiple, and interval setting, and such as 3, on two neighboring barrier plate 66, the diameter of through hole can phase
Together it is also possible to differ, shown in Fig. 5.The design in this multiple reducing labyrinth, makes tubular cavity internal diameter repeatedly expand, reduce,
During expansion, oil smoke obtains the diffusion motive force of radial direction, and most of oil smoke entering in pipe is diluted in this section and is attached in pipe
Wall, when reducing, stops that the wall of version blocks a part of oil smoke again, so repeatedly circulates, so that oil smoke is entered in pipe and have footpath
To Concentraton gradient, such that it is able to make by diffuse into the oil smoke in pipe reach light emission part Probability maximum reduction.
In addition, the variable diameter design of tubular cavity is moreover it is possible to form optics labyrinth in pipe, the angle of divergence that elimination light emission part 41 sends is larger
Light it is ensured that the collimation of emergent light；For detection optical pickup apparatus 5 moreover it is possible to elimination natural light and environment veiling glare connect to light
Receipts portion 51 receives the impact of optical signal.
In addition, the pipe thickness of tubular protective cover presents, thick middle both sides are gradually thinning, so that the internal diameter of tubular cavity
Assume change, shown in Figure 6.
In addition, the pipe thickness of tubular protective cover can present being continually changing, so that the internal diameter of tubular cavity presents not
Disconnected change, shown in Figure 7.
In addition, the one or more pairs of dividing plates being oppositely arranged can also be provided with the middle part of tubular cavity, have between each pair dividing plate
Gap, between dividing plate, the center in gap and the center of the first opening and the second opening are on same straight line.
In the present embodiment, light emission part is light emitting diode or the laser tube that can send infrared light, and light receiver portion
For the diode or triode receiving the infrared light that sends of light emission part or laser can be corresponded to.
Claims (14)
1. a kind of lampblack absorber that can detect oil smoke concentration, including housing, is provided with exhaust fume collecting hood below housing, be provided with housing blower fan and
The main control unit of rotation speed of fan can be controlled, housing is additionally provided with the photo-electric oil that can detect oil smoke concentration being connected with main control unit
Smoke sensor, this photo-electric oil smoke sensor comprises to detect light emitting devices and detection optical pickup apparatus, detects light emitting devices
Tool can launch the light emission part of detection light, and detection optical pickup apparatus have the light that can receive the detection light that light emission part sends
Line acceptance division；It is characterized in that：Described detection light emitting devices and detection optical pickup apparatus are mutually aligned and are arranged on exhaust fume collecting hood
Two opposite sides or enclosure interior flue two opposite sides；Described detection light emitting devices or/and detection optical pickup apparatus also include preventing
Protection structure, this safeguard structure comprises the protective cover that inside has cavity, and one end of protective cover is provided with first being connected with cavity and opens
Mouthful, the other end of protective cover is provided with the second opening that is relative with the first opening, equally connecting, described light emission part with cavity
Or/and light receiver portion is sealingly mounted in the first opening.
2. lampblack absorber according to claim 1 it is characterised in that：Described light emission part or/and the sealing of light receiver portion
It is plugged in the first opening.
3. lampblack absorber according to claim 1 it is characterised in that：Described protective cover is in the form of a column or tubulose, in protective cover
Cavity is cylindrical cavity or tubular cavity.
4. lampblack absorber according to claim 1 it is characterised in that：Connect cavity between the first opening and the second opening
Internal diameter presents and changes.
5. lampblack absorber according to claim 4 it is characterised in that：Connect cavity between the first opening and the second opening
Internal diameter presents n times and first reduces the change expanding again, and N is the natural number more than or equal to 1.
6. lampblack absorber according to claim 4 it is characterised in that：Connect in the cavity between the first opening and the second opening
Wall is provided with the N being oppositely arranged to dividing plate, is respectively provided with gap between each pair dividing plate, and N is the natural number more than or equal to 1.
7. lampblack absorber according to claim 6 it is characterised in that：When N is more than or equal to 2, between adjacent two pairs of dividing plates
Gap differs.
8. lampblack absorber according to claim 7 it is characterised in that：N to the center in gap between dividing plate and the first opening and
The center of the second opening is on same straight line.
9. lampblack absorber according to claim 4 it is characterised in that：Connect in the cavity between the first opening and the second opening
It is provided with N number of barrier plate, each barrier plate has through hole, N is the natural number more than or equal to 1.
10. lampblack absorber according to claim 9 it is characterised in that：When N is more than or equal to 2, logical on two neighboring barrier plate
The diameter in hole differs.
11. lampblack absorbers according to claim 10 it is characterised in that：Through hole central point on N number of barrier plate is opened with first
Mouthful and the second opening central point be in same directly on.
12. lampblack absorbers according to claim 4 it is characterised in that：The pipe thickness of described protective cover assumes change, thus
The internal diameter of the cavity between connection first opening and the second opening is made to assume change.
13. lampblack absorbers according to claim 1 it is characterised in that：Described light emission part is to send sending out of infrared light
Optical diode or laser tube, light receiver portion used is to correspond to two poles receiving the infrared light that sends of light emission part or laser
Pipe or audion.
14. lampblack absorbers according to claim 1 it is characterised in that：Described photo-electric oil smoke sensor also includes and detection
Light emitting devices and the sensor circuit board of detection optical pickup apparatus, the power input of this sensor circuit board and city are electrically connected
Connect, the power output end of this sensor circuit board is connected with detection light emitting devices and detection optical pickup apparatus, in addition, this sensing
The reception detection optical signal processing unit being connected with detection optical pickup apparatus is had on device circuit board, receives detection optical signal prosessing
The detection optical signal that detection optical pickup apparatus receive can be amplified for unit and opto-electronic conversion is processed, and receives at detection optical signal
Reason unit is connected with main control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620546861.4U CN206001557U (en) | 2016-06-07 | 2016-06-07 | The lampblack absorber of oil smoke concentration can be detected |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620546861.4U CN206001557U (en) | 2016-06-07 | 2016-06-07 | The lampblack absorber of oil smoke concentration can be detected |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211075A1 (en) * | 2016-06-07 | 2017-12-14 | 宁波方太厨具有限公司 | Protective structure of oil smoke sensor |
| 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 |
| CN109556155A (en) * | 2017-09-27 | 2019-04-02 | 迪尔阿扣基金两合公司 | Oil smoke detection device and kitchen ventilator for kitchen ventilator |
-
2016
- 2016-06-07 CN CN201620546861.4U patent/CN206001557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211075A1 (en) * | 2016-06-07 | 2017-12-14 | 宁波方太厨具有限公司 | Protective structure of oil smoke sensor |
| CN109556155A (en) * | 2017-09-27 | 2019-04-02 | 迪尔阿扣基金两合公司 | Oil smoke detection device and kitchen ventilator for kitchen ventilator |
| CN109556155B (en) * | 2017-09-27 | 2020-10-02 | 迪尔阿扣基金两合公司 | Oil smoke detection device for range hood and range hood |
| 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 |
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