CN109611909A - Cleaning control method of range hood - Google Patents
Cleaning control method of range hood Download PDFInfo
- Publication number
- CN109611909A CN109611909A CN201811333146.2A CN201811333146A CN109611909A CN 109611909 A CN109611909 A CN 109611909A CN 201811333146 A CN201811333146 A CN 201811333146A CN 109611909 A CN109611909 A CN 109611909A
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- Prior art keywords
- voltage signal
- range hood
- average value
- detecting device
- infrared detecting
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- 238000004140 cleaning Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012935 Averaging Methods 0.000 claims 2
- 239000000779 smoke Substances 0.000 description 21
- 239000004065 semiconductor Substances 0.000 description 8
- 239000004519 grease Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920000715 Mucilage Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a cleaning control method of a range hood, which comprises the following steps: when the range hood is shut down, the infrared detection device is started; collecting a plurality of voltage signals through the infrared detection device; calculating the average value of a plurality of voltage signals to obtain a first initial voltage signal average value; acquiring a temperature signal through the temperature detection device, and correcting the average value of the first initial voltage signal according to the temperature signal to obtain a first final voltage signal average value; and determining whether to prompt a user to clean the range hood according to whether the average value of the first final voltage signal meets a preset condition. The degree of oil stain pollution in the range hood can be judged, and a user is prompted whether to clean the range hood or not according to the judgment result in time.
Description
Technical field
The present invention relates to kitchen appliance technical field more particularly to a kind of cleaning control methods of range hood.
Background technique
After a period of use, wind wheel will be attached with certain grease stain to smoke machine, and the grease stain of attachment will affect the wind of smoke machine
Amount is to influence the performance of smoke machine.User is when cleaning smoke machine, it is unclear that the pollution level of attachment grease stain inside smoke machine, it can only be with
Feeling judge its pollution level to clean smoke machine for oneself, this feeling judgement cannot generally correspond to practical feelings in time
Condition, may in advance or lag, the advanced smoke machine that cleans then lead to user's frequent clean, increases the workload of user, lag is clearly
Washing smoke machine then influences smoke machine performance, brings many inconvenience to user in this way.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
A kind of bright cleaning control method for proposing range hood, can determine whether the degree of grunge pollution in smoke machine, and in time according to judgement
As a result cleaning smoke machine is prompted the user whether.
Above-mentioned purpose is achieved by the following technical solution:
A kind of cleaning control method of range hood, including infrared detecting device and temperature-detecting device, the infrared inspection
Survey device include transmitting unit, receiving unit and transmitting receiving unit, the transmitting receiving unit respectively with the transmitting unit,
The receiving unit signal connection, the cleaning control method include the following steps:
After range hood shutdown, start the infrared detecting device；
Multiple voltage signals are acquired by the infrared detecting device；
The average value for calculating multiple voltage signals obtains the first initial voltage signal average value；
By the temperature-detecting device temperature collection signal, first initial voltage is believed according to the temperature signal
Number average value is modified to obtain the first final voltage signal average value；
Decide whether that prompting user to clean inhales according to whether the described first final voltage signal average value meets preset condition
Kitchen ventilator.
In some embodiments, the preset condition specifically: V < K*V0, wherein V is flat for the first final voltage signal
Mean value, K are coefficient, and V0 is voltage reference value；
If V < K*V0, prompts user to clean range hood and close the infrared detecting device；
If V >=K*V0, the infrared detecting device is closed, is restarted after waiting range hood culinary art next time
The infrared detecting device.
In some embodiments, the specific calculating step of the first initial voltage signal average value are as follows:
Resulting multiple voltage signals will be acquired to sort from big to small or from small to large；
Remove at least one maximum voltage signal and at least one the smallest voltage signal；
Average computation is carried out to remaining voltage signal and obtains the first initial voltage signal average value.
In some embodiments, after prompt user cleans range hood and closes the infrared detecting device, detection
Whether the range hood cleans completion；
If the range hood does not clean completion, continue that user is prompted to clean range hood；
If the range hood cleaning is completed, it is again started up the infrared detecting device.
In some embodiments, it after being again started up the infrared detecting device, is adopted by the infrared detecting device
Collect multiple voltage signals；
The average value for calculating multiple voltage signals obtains the second initial voltage signal average value；
By the temperature-detecting device temperature collection signal, second initial voltage is believed according to the temperature signal
Number average value is modified to obtain the second final voltage signal average value；
Being decided whether according to the relationship between the described second final voltage signal average value and failure threshold values will be described default
Voltage reference value in condition carries out assignment.
In some embodiments, the threshold values if the second final voltage signal average value > fails, will be described default
Voltage reference value in condition is assigned a value of the described second final voltage signal average value, simultaneously closes off the infrared detecting device；
It is first average to the described second final voltage signal if the second final voltage signal average value≤failure threshold values
Value is calibrated, and the described second final voltage signal average value after calibration is then assigned to the voltage in the preset condition
A reference value simultaneously closes off the infrared detecting device.
In some embodiments, the specific steps of the second final voltage signal average value are calibrated are as follows: described in adjusting
Second final voltage signal average value, so that the second final voltage signal average value, between Vs-Vx, wherein Vs is voltage
Upper limit value, Vx are voltage lower limit value.
It in some embodiments, further include having amplifier unit, the amplifier unit includes level-one operational amplifier circuit and second level
Operational amplifier circuit, by the level-one operational amplifier circuit and the second level operational amplifier circuit to the described second final voltage signal average value into
Row is adjusted.
In some embodiments, preliminary stage of the range hood in the cleaning frequency, the infrared detecting device are logical
It crosses after starting the level-one operational amplifier circuit amplification voltage signal and carries out collection voltages signal；
Later stage of the range hood in the cleaning frequency, the infrared detecting device is by starting the second level amplifier
Circuit carries out collection voltages signal after amplifying voltage signal.
Compared with prior art, the present invention at least having the effect that
1, the cleaning control method of range hood of the present invention can determine whether the degree of grunge pollution in smoke machine, and timely root
It is judged that as a result prompting the user whether cleaning smoke machine.
2, its workload that can reduce user, while can also guarantee the working performance of smoke machine.
Other beneficial outcomes of the invention will be explained in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the flow chart of cleaning control method in the embodiment of the present invention；
Fig. 2 is the block diagram of infrared detecting device in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of infrared detecting device in the embodiment of the present invention；
Fig. 4 is the circuit diagram for emitting receiving unit in the embodiment of the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one: as shown in Figures 1 to 4, the present embodiment provides a kind of cleaning control methods of range hood, including
Infrared detecting device and temperature-detecting device, infrared detecting device include transmitting unit, receiving unit and transmitting receiving unit, hair
It penetrates receiving unit to connect with transmitting unit, receiving unit signal respectively, cleaning control method includes the following steps:
Step S101 starts the infrared detecting device after range hood shutdown.
In the present embodiment, range hood culinary art terminates timing 10 seconds, preferably 10 seconds after shut down, but is not limited to 10
Second, other more particularly suitable times can be also selected according to actual needs, are started infrared detecting device at the end of timing and are carried out work
Make.
Step S102 acquires multiple voltage signals by the infrared detecting device.
In the present embodiment, infrared detecting device timing 2 seconds, preferably 2 seconds after actuation, but be not limited to 2 seconds, it can also root
It is selected other more particularly suitable times according to actual needs, infrared detecting device starts to acquire multiple voltage letters at the end of timing
Number.Infrared detecting device continuous acquisition 3 seconds, amounts to 15 voltage signals of acquisition in collection voltages signal acquisition 5 times per second.
Step S103 will acquire resulting multiple voltage signals and be ranked up from big to small or from small to large, after sequence
At least one maximum voltage signal and at least one the smallest voltage signal are removed, average meter is carried out to remaining voltage signal
Calculation obtains the first initial voltage signal average value.
In the present embodiment, resulting 15 voltage signals will be acquired first to be ranked up according to sequence from big to small,
It can certainly be that other sequences sort, be not limited thereto, then remove 3 maximum voltage signals and 3 respectively most
Small voltage signal carries out average computation to remaining 9 voltage signals and obtains the first initial voltage signal average value.
Step S104, after the first initial voltage signal average value is calculated, start-up temperature detection device acquires oil suction
The signal of environment temperature in smoke machine repairs the first initial voltage signal average value progress temperature according to resulting temperature signal is acquired
Just to obtain the first final voltage signal average value.
Step S105 decides whether to prompt user clear according to whether the first final voltage signal average value meets preset condition
Wash range hood.
Specifically, preset condition specifically: V < K*V0, wherein V is the first final voltage signal average value, and K is coefficient,
V0 is voltage reference value；
If V < K*V0, prompts user to clean range hood and close infrared detecting device；
If V >=K*V0, infrared detecting device is closed, return step S101 waits range hood culinary art next time to terminate
After restart the infrared detecting device.
Step S106, after prompt user cleans range hood and closes infrared detecting device, whether detection range hood
Cleaning is completed；
If range hood does not clean completion, continue that user is prompted to clean range hood；
If range hood cleaning is completed, it is again started up infrared detecting device and carries out the detection work after range hood cleaning
Make.
Step S107 acquires multiple voltage signals by infrared detecting device after being again started up infrared detecting device；
The average value for calculating multiple voltage signals obtains the second initial voltage signal average value；
By temperature-detecting device temperature collection signal, the second initial voltage signal average value is carried out according to temperature signal
Amendment is to obtain the second final voltage signal average value.
In the present embodiment, infrared detecting device, infrared detection dress are again started up simultaneously after the completion of range hood cleans
It sets in collection voltages signal acquisition 5 times per second, continuous acquisition 3 seconds, amounts to 15 voltage signals of acquisition.It then will acquisition gained
15 voltage signals be ranked up according to sequence from big to small, naturally it is also possible to be that other sequences sort, do not make herein
It limits, then removes 3 maximum voltage signals and 3 the smallest voltage signals respectively, remaining 9 voltage signals are carried out flat
The second initial voltage signal average value is calculated.After the second initial voltage signal average value is calculated, start-up temperature
Detection device acquires the signal of environment temperature in range hood, according to the resulting temperature signal of acquisition to the second initial voltage signal
Average value carries out temperature adjustmemt to obtain the second final voltage signal average value.
Step S108 decides whether to preset according to the relationship between the second final voltage signal average value and failure threshold values
Voltage reference value in condition carries out assignment.
Specifically, the threshold values if the second final voltage signal average value > fails, by the voltage reference value in preset condition
It is assigned a value of the second final voltage signal average value, simultaneously close off infrared detecting device and is entered to the end of culinary art range hood next time
Infrared detecting device is again started up after off-mode to work；
If the second final voltage signal average value≤failure threshold values, first carries out school to the second final voltage signal average value
Standard, by adjusting the second final voltage signal average value when calibration so that the second final voltage signal average value Vs-Vx it
Between, wherein Vs is upper voltage limit, and Vx is voltage lower limit value, then by the second final voltage signal average value assignment after calibration
To the voltage reference value in preset condition, simultaneously closes off infrared detecting device and enter shutdown to the end of culinary art range hood next time
Infrared detecting device is again started up after state to work.
In the present embodiment, assignment is the process that a certain numerical value is assigned to some variable, and assigning " value " can be number,
It is also possible to character string and expression formula.
The cleaning control method of the present embodiment range hood can determine whether the degree of grunge pollution in smoke machine, and timely root
It is judged that as a result prompting the user whether cleaning smoke machine.In addition, its workload that can reduce user, while can also guarantee smoke machine
Working performance.
It particularly, further include having amplifier unit, amplifier unit includes level-one operational amplifier circuit and second level operational amplifier circuit, passes through one
The second final voltage signal average value is adjusted in grade operational amplifier circuit and second level operational amplifier circuit, designs reasonable, ingenious.
In the present embodiment, range hood enters the preliminary stage of cleaning frequency, infrared detecting device after cleaning up
Start level-one operational amplifier circuit and amplify voltage signal, multiple voltage signals are acquired to AD1；Amplify electricity by level-one operational amplifier circuit
Pressure signal and when being calibrated in step S108, if the collected multiple voltage signals of institute pass through second be calculated finally
When voltage signal average value≤failure threshold values, then by controlling metal-oxide-semiconductor J1, J2 the second final voltage signal average value is existed
Between Vs-Vx, wherein Vs is upper voltage limit, and Vx is voltage lower limit value.
With being increased using the time for range hood, range hood enters the later stage of cleaning frequency, so that level-one is transported
The amplification factor on electric discharge road generates failure conditions, and in the amplification factor failure of level-one operational amplifier circuit, starting second level operational amplifier circuit is put
Big voltage signal is acquired multiple voltage signals to AD2；Amplify voltage signal by second level operational amplifier circuit and in step S108
In when being calibrated, if collected multiple voltage signals pass through second final voltage signal average value≤mistake being calculated
When imitating threshold values, then make the second final voltage signal average value between Vs-Vx by controlling metal-oxide-semiconductor J1, J2, J3, wherein Vs
For upper voltage limit, Vx is voltage lower limit value.
Embodiment two: as shown in Figures 2 and 3, infrared detecting device provided in this embodiment may include transmitting unit
1, receiving unit 2 and transmitting receiving unit 3, transmitting receiving unit 3 are connect with transmitting unit 1,2 signal of receiving unit respectively,
Structure is simple, compact, and design is reasonable.
The infrared detecting device of the present embodiment applies range hood cleaning control method as described above, passes through oil suction
In use for some time, the transmitting tube and reception pipe surface of infrared detecting device can cover one layer of oil film to smoke machine, finally make to connect
The infrared ray that closed tube receives is reduced, so that output signal voltage becomes smaller, is judged in smoke machine by judging the value that voltage becomes smaller
Portion's grunge pollution degree simultaneously prompts user to clean smoke machine.
In the present embodiment, transmitting unit 1, receiving unit 2 and transmitting receive Unit 3 and are fixed on the base.Transmitting unit 1
It is made with receiving unit 2 of opaque-plastic, it is preferred to use black plastic production, but it is not limited to black plastic, it can also basis
Actual needs selects other more particularly suitable materials.
In the present embodiment, transmitting unit 1 includes transmitting tube 4 and emission cavity 5, and transmitting tube 4 is solid using epoxy resin sealing
It is scheduled in emission cavity 5, but is not limited to epoxy resin, can also select other more particularly suitable mucilage materials according to actual needs.It connects
Receiving unit 2 includes reception pipe 6 and receiving cavity 7, and reception pipe 6 is fixed in receiving cavity 7 using epoxy resin sealing, but is not limited to ring
Oxygen resin can also select other more particularly suitable mucilage materials according to actual needs.It is set respectively by transmitting tube 4 and reception pipe 6
It sets in emission cavity 5, receiving cavity 7, and then the interference of environment light can be prevented, while to form the transmitting and reception of axial light, and
Slow down grease stain to the pollution speed of transmitting tube 4, reception pipe 6, further improves infrared detecting device service life.
As shown in Figure 4, transceiver circuit provided in this embodiment includes metal-oxide-semiconductor J1, metal-oxide-semiconductor J2, metal-oxide-semiconductor J3, fortune
Unit U1, AD1, AD2 and AD3 are put, wherein AD1 and AD2 is used for collection voltages signal, and AD3 is for acquiring environment temperature, amplifier list
First U1 includes level-one amplifier out1 and second level amplifier out2, and the input terminal of level-one amplifier out1 connects with resistance R3 and resistance R4 respectively
It connects, the input terminal of second level amplifier out2 is connect with AD1 and AD2 respectively, the output end and level-one amplifier out1 of second level amplifier out2
Output end connection amplified with the signal for exporting level-one amplifier out1.
In the present embodiment, metal-oxide-semiconductor J1 is for controlling infrared transmitting tube light intensity, and metal-oxide-semiconductor J2, metal-oxide-semiconductor J3 are for controlling fortune
Put the amplification factor of unit U1.Make amplifier unit U1 that different grades can be switched under various circumstances by using two stage amplifer
Number, the amplification factor such as level-one amplifier out1 is inadequate, then is amplified using second level amplifier out2, at this time to AD2 collection voltages
Signal, AD1 is without acquisition；When level-one amplifier out1 is met the requirements then to AD1 collection voltages signal, AD2 is without acquisition.
Further, reception pipe can be easy influenced by ambient temperature, therefore, setting in circuit and near reception pipe
It is equipped with thermistor, in order to acquire the environment temperature near reception pipe.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (9)
1. a kind of cleaning control method of range hood, including infrared detecting device and temperature-detecting device, the infrared detection
Device include transmitting unit, receiving unit and transmitting receiving unit, the transmitting receiving unit respectively with the transmitting unit, institute
State the connection of receiving unit signal, which is characterized in that the cleaning control method includes the following steps:
After range hood shutdown, start the infrared detecting device；
Multiple voltage signals are acquired by the infrared detecting device；
The average value for calculating multiple voltage signals obtains the first initial voltage signal average value；
It is flat to first initial voltage signal according to the temperature signal by the temperature-detecting device temperature collection signal
Mean value is modified to obtain the first final voltage signal average value；
According to whether the described first final voltage signal average value meets preset condition decide whether that user is prompted to clean fume-exhausting
Machine.
2. a kind of cleaning control method of range hood according to claim 1, which is characterized in that the preset condition tool
Body are as follows: V < K*V0, wherein V is the first final voltage signal average value, and K is coefficient, and V0 is voltage reference value；
If V < K*V0, prompts user to clean range hood and close the infrared detecting device；
If V >=K*V0, the infrared detecting device is closed, is waited described in being restarted after range hood is cooked next time
Infrared detecting device.
3. a kind of cleaning control method of range hood according to claim 1, which is characterized in that the described first initial electricity
Press the specific calculating step of signal averaging are as follows:
Resulting multiple voltage signals will be acquired to sort from big to small or from small to large；
Remove at least one maximum voltage signal and at least one the smallest voltage signal；
Average computation is carried out to remaining voltage signal and obtains the first initial voltage signal average value.
4. a kind of cleaning control method of range hood according to claim 2, which is characterized in that in prompt user's cleaning
Range hood and after closing the infrared detecting device, detects whether the range hood cleans completion；
If the range hood does not clean completion, continue that user is prompted to clean range hood；
If the range hood cleaning is completed, it is again started up the infrared detecting device.
5. a kind of cleaning control method of range hood according to claim 4, which is characterized in that described being again started up
After infrared detecting device, multiple voltage signals are acquired by the infrared detecting device；
The average value for calculating multiple voltage signals obtains the second initial voltage signal average value；
It is flat to second initial voltage signal according to the temperature signal by the temperature-detecting device temperature collection signal
Mean value is modified to obtain the second final voltage signal average value；
Decided whether according to the relationship between the described second final voltage signal average value and failure threshold values by the preset condition
In voltage reference value carry out assignment.
6. a kind of cleaning control method of range hood according to claim 5, which is characterized in that if described second is final
Voltage signal average value > failure threshold values, then be assigned a value of the described second final voltage for the voltage reference value in the preset condition
Signal averaging simultaneously closes off the infrared detecting device；
If the second final voltage signal average value≤failure threshold values, first to the described second final voltage signal average value into
Row calibration, is then assigned to the voltage reference in the preset condition for the described second final voltage signal average value after calibration
Value, simultaneously closes off the infrared detecting device.
7. a kind of cleaning control method of range hood according to claim 6, which is characterized in that calibration described second is most
The specific steps of whole voltage signal average value are as follows: the second final voltage signal average value is adjusted, so that described second is final
Voltage signal average value is between Vs-Vx, and wherein Vs is upper voltage limit, and Vx is voltage lower limit value.
8. a kind of cleaning control method of range hood according to claim 7, which is characterized in that further include having amplifier list
Member, the amplifier unit include level-one operational amplifier circuit and second level operational amplifier circuit, pass through the level-one operational amplifier circuit or the second level
The described second final voltage signal average value is adjusted in operational amplifier circuit.
9. a kind of cleaning control method of range hood according to claim 8, which is characterized in that the range hood exists
The preliminary stage of cleaning frequency, the infrared detecting device after starting the level-one operational amplifier circuit amplification voltage signal by carrying out
Collection voltages signal；
Later stage of the range hood in the cleaning frequency, the infrared detecting device is by starting the second level operational amplifier circuit
Collection voltages signal is carried out after amplifying voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333146.2A CN109611909B (en) | 2018-11-09 | 2018-11-09 | Cleaning control method of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333146.2A CN109611909B (en) | 2018-11-09 | 2018-11-09 | Cleaning control method of range hood |
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| Publication Number | Publication Date |
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| CN109611909A true CN109611909A (en) | 2019-04-12 |
| CN109611909B CN109611909B (en) | 2020-11-06 |
Family
ID=66004046
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|---|---|---|---|
| CN201811333146.2A Active CN109611909B (en) | 2018-11-09 | 2018-11-09 | Cleaning control method of range hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110186091A (en) * | 2019-05-30 | 2019-08-30 | 华帝股份有限公司 | Automatic cleaning control method for range hood |
| CN110887080A (en) * | 2019-11-12 | 2020-03-17 | 华帝股份有限公司 | Self-cleaning control method and range hood |
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| CN110887080A (en) * | 2019-11-12 | 2020-03-17 | 华帝股份有限公司 | Self-cleaning control method and range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109611909B (en) | 2020-11-06 |
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