CN109990331A - The alarm method of High-voltage electrostatic purification device and the range hood of application this method - Google Patents
The alarm method of High-voltage electrostatic purification device and the range hood of application this method Download PDFInfo
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- CN109990331A CN109990331A CN201711478147.1A CN201711478147A CN109990331A CN 109990331 A CN109990331 A CN 109990331A CN 201711478147 A CN201711478147 A CN 201711478147A CN 109990331 A CN109990331 A CN 109990331A
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- purification device
- voltage electrostatic
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- 238000000746 purification Methods 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000004584 weight gain Effects 0.000 claims abstract description 10
- 235000019786 weight gain Nutrition 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 33
- 238000009825 accumulation Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 13
- 231100000719 pollutant Toxicity 0.000 abstract description 13
- 239000003517 fume Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 235000012054 meals Nutrition 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 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)
- Electrostatic Separation (AREA)
Abstract
The present invention relates to a kind of alarm methods of High-voltage electrostatic purification device; the increase weight of High-voltage electrostatic purification device is detected first; when increasing weight gain threshold value of the weight more than setting; when then detecting that High-voltage electrostatic purification device electric current is greater than the current threshold of setting; then think that the pollutant accumulated on High-voltage electrostatic purification device is excessive, starting protection mechanism.And when increase weight is less than the weight gain threshold value of setting; when detecting that High-voltage electrostatic purification device electric current is greater than the current threshold of setting; work is restarted in High-voltage electrostatic purification device break-off afterwards for a period of time; but it does not alarm directly; only when stopping time threshold value of the number of High-voltage electrostatic purification device break-off beyond setting, ability starting protection mechanism.Then solves the case where protection mechanism error starting by the gain in weight of High-voltage electrostatic purification device in the present invention.User experience can then be improved using the range hood for the alarm method for having the High-voltage electrostatic purification device, promote product quality.
Description
Technical field
The present invention relates to range hood technical fields, and in particular to a kind of alarm method of High-voltage electrostatic purification device, this
Invention further relates to the range hood using the alarm method for having the High-voltage electrostatic purification device.
Background technique
Currently, enhance the fume purifying effect of range hood in the domestic cooking fume remover of part using high voltage electrostatic device,
The working principle of high voltage electrostatic device is will to pass through the gas ionization between electrode, to be adsorbed in electricity using high-voltage electrostatic field
On extremely, achieve the purpose that purifying oil fume.As Authorization Notice No. is CN205261690U (application No. is 201521080899.9)
Chinese utility model patent " range hood that a kind of static lampblack purification device and application have the device ", even if structure therein
The purification device for using electrostatic to do device as oil smoke carry out using.But with the increase of working time, pollutant can be continuous
It is adsorbed on electrode plate and causes the accumulation of pollutant, the resistance between pole plate becomes smaller, and operating current increases.Pollutant on electrode plate
When accumulating excessive, the normal work of high voltage electrostatic device on the one hand will affect, another aspect pollutants from cooking fume is in range hood height
The danger for causing fire is had under the working condition of temperature.Operating current detection circuit is set usually in high voltage electrostatic device, when
When detecting that the operating current of high voltage electrostatic device is more than given threshold, the protection mechanism of high voltage electrostatic device will start, prompt
Clear up high voltage electrostatic device.But high voltage electrostatic device is in use, the high-pressure electrostatic being particularly applicable in range hood
Device, since its operating temperature is relatively high and is provided with fan, so that the pollutant on high voltage electrostatic device has centainly
Mobility also results in instantaneous short circuit between pole plate after pollutant gathers a position in flow process, and operating current increases
Greatly, to start the protection mechanism of high voltage electrostatic device.Then the short-circuit condition of such case bottom crown part can time at one end
It disappears afterwards with the flowing of pollutant, belongs to the error starting of protection mechanism, can accordingly occur that cleaning cycle is too short to ask in this way
Topic, influences user experience.
Summary of the invention
First technical problem to be solved by this invention is to provide one kind for the above-mentioned prior art to can be avoided protection
The alarm method of the High-voltage electrostatic purification device of mechanism error starting.
Second technical problem to be solved by this invention is to provide a kind of application for the above-mentioned prior art to have aforementioned height
The range hood of the alarm method of electrostatic filter is pressed, High-voltage electrostatic purification device therein can start at a reasonable time
Protection mechanism, and then improve user experience.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: a kind of High-voltage electrostatic purification device
Alarm method, it is characterised in that the following steps are included:
S1, detect High-voltage electrostatic purification device real-time weight, and by the real-time weight of High-voltage electrostatic purification device with deposit
The original weight of the High-voltage electrostatic purification device of storage compares, and then obtains the increase weight of High-voltage electrostatic purification device；
S2, judge whether the increase weight of High-voltage electrostatic purification device is greater than the weight gain threshold value of setting；If it is, carrying out
S3；If it is not, then carrying out S5；
S3, the real-time working electric current for obtaining High-voltage electrostatic purification device；
S4, judge whether the real-time working electric current of High-voltage electrostatic purification device is greater than the current threshold of setting；If it is,
S10 is carried out, if it is not, then returning to S3；
S5, the real-time working electric current for obtaining High-voltage electrostatic purification device, judge the real-time working of High-voltage electrostatic purification device
Whether electric current is greater than the current threshold of setting；If it is, S6 is carried out, if it is not, then returning to S1；
S6, High-voltage electrostatic purification device stop working, and the number to stop working to High-voltage electrostatic purification device counts；
S7, judge whether time that High-voltage electrostatic purification device stops working reaches the time out of setting, if it is,
Carry out S8；
S8, starting High-voltage electrostatic purification device, detection obtains the real-time working electric current of High-voltage electrostatic purification device, and judges
Whether the real-time working electric current of High-voltage electrostatic purification device is greater than the current threshold of setting；If it is, S9 is carried out, if not,
Then return to S1；
S9, judge that High-voltage electrostatic purification device carries out one action mistake in the equipment for being mounted with the High-voltage electrostatic purification device
Whether the number that stops working in journey reaches the stopping time threshold value of setting；If so, carrying out S10；If it is not, then returning to S6；
S10, starting High-voltage electrostatic purification unit protection mechanism.
2, the alarm method of High-voltage electrostatic purification device according to claim 1, it is characterised in that: setting high pressure is quiet
The accumulation stopping time threshold value that electric depurant stops working；In S9, while judging that the accumulative of High-voltage electrostatic purification device stops
Only whether work times reach accumulation stopping time threshold value, if it is, S10 is carried out, if it is not, then returning to S6.
3, the alarm method of High-voltage electrostatic purification device according to claim 1 or 2, it is characterised in that: when by S2
When being transferred to progress S3, detection obtains the real-time working electric current of High-voltage electrostatic purification device immediately；When returning to S3 by S4, according to setting
Fixed operating current detection cycle detection obtains the real-time working electric current of High-voltage electrostatic purification device；
In S5, the real-time working electricity for obtaining High-voltage electrostatic purification device is detected according to the operating current detection cycle of setting
Stream；
In S8, detection obtains the real-time working electric current of High-voltage electrostatic purification device immediately.
4, the alarm method of High-voltage electrostatic purification device according to claim 1 or 2, it is characterised in that: high pressure is quiet
Electric protection mechanism are as follows: High-voltage electrostatic purification device stops working, while carrying out the detection alarm of High-voltage electrostatic purification device.
5, the alarm method of High-voltage electrostatic purification device according to claim 4, it is characterised in that: be transferred to when by S4
When S10, the cleaning alarm of High-voltage electrostatic purification device is carried out；When being transferred to S10 by S9, High-voltage electrostatic purification plant failure report is carried out
It is alert.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of application high-pressure electrostatic above-mentioned
The range hood of the alarm method of purification device, it is characterised in that: including range hood ontology and be arranged in range hood sheet
Intracorporal High-voltage electrostatic purification device, current detection circuit, weight sensor and controller, the weight sensor setting exist
The lower section of the High-voltage electrostatic purification device, the range hood ontology, High-voltage electrostatic purification device, weight sensor respectively with
Controller electrical connection, the current detection circuit are connected electrically between High-voltage electrostatic purification device and controller.
Compared with the prior art, the advantages of the present invention are as follows: the alarm method of the High-voltage electrostatic purification device in the present invention
The weight change amount of High-voltage electrostatic purification device can be obtained, it is so big in the operating current for detecting High-voltage electrostatic purification device
When the current threshold of setting, then can judge whether it is because high pressure is quiet according to the weight change amount of High-voltage electrostatic purification device
The pollutant accumulated on the pole plate of electric depurant excessively caused by, avoid because on pole plate pollutant position aggregation is drawn
The false alarm risen guarantees the reasonable cleaning alarm cycle of High-voltage electrostatic purification device, improves the experience of user.Respective application
There is the range hood of the alarm method of the High-voltage electrostatic purification device, job information output correctness is higher, improves product
Quality.
Detailed description of the invention
Fig. 1 is the structural block diagram of range hood in the embodiment of the present invention.
Fig. 2 is the flow chart of the alarm method of mesohigh of embodiment of the present invention electrostatic filter.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, the alarm method of the High-voltage electrostatic purification device in the present embodiment can be used and be equipped with various
In the equipment of High-voltage electrostatic purification device 2, the present embodiment is said so that it is applied in range hood as an example for convenience of explanation
It is bright.
Range hood in the present embodiment includes range hood ontology 1 and the high pressure that is arranged in range hood ontology 1
Electrostatic filter 2, current detection circuit 3, weight sensor 4 and controller 5.Range hood ontology 1, High-voltage electrostatic purification
Device 2, weight sensor 4 are electrically connected with controller 5 respectively.Current detection circuit 3 is connected electrically in 2 He of High-voltage electrostatic purification device
Between controller 5.
It include the device that blower etc. carries out control work, controller 5 and range hood sheet in range hood ontology 1
The device for needing to control in body 1 is electrically connected, and then control range hood ontology 1 is facilitated to carry out fume-exhausting work.High pressure is quiet
Electric depurant 2 can be mounted in range hood ontology 1 by a position limiting structure, and weight sensor 4 is then arranged in high pressure
The lower section of electrostatic filter 2.For High-voltage electrostatic purification device 2 in initial installation, it is quiet that gravity sensor can detect acquisition high pressure
The initial value of electric depurant 2 can accumulate greasy dirt with the use of range hood on the pole plate of High-voltage electrostatic purification device 2, into
And the weight of High-voltage electrostatic purification device 2 can be obtained in real time by gravity sensor, controller 5 is transmitted according to gravity sensor
Data can calculate the weight change value of High-voltage electrostatic purification device 2.
The master controller 5 in range hood can be directly used in controller 5, and High-voltage electrostatic purification device 2 can then use
Various high voltage electrostatic devices in the prior art.The input terminal of current detection circuit 3 and the current detecting end of high voltage electrostatic device
Electrical connection, the output end of current detection circuit 3 are then electrically connected with controller 5, and current detection circuit 3 can be quiet with real-time detection high pressure
The operating current of electric depurant 2, when the pollutant accumulated on two pole plates of High-voltage electrostatic purification device 2 is more, meeting
Two pole plates of High-voltage electrostatic purification device 2 are caused to generate short circuit, so that the operating current of High-voltage electrostatic purification device 2 increases
Greatly, when the operating current of High-voltage electrostatic purification device 2 is more than the current threshold of setting, then judge High-voltage electrostatic purification device 2
Two pole plates short circuit occurs, and then judge that the pollutant accumulation on High-voltage electrostatic purification device 2 is excessive, cleared up.
Accumulation greasy dirt is easy but in the working environment of range hood, on the pole plate of High-voltage electrostatic purification device 2, and in the course of work
In due to oil smoke temperature it is relatively high, on the pole plate of High-voltage electrostatic purification device 2 greasy dirt have certain mobility.When greasy dirt is concentrated
Short circuit occurs for two pole plates that High-voltage electrostatic purification device 2 is easily caused when at one, and then High-voltage electrostatic purification device 2 occurs
Operating current the case where being more than the current threshold of setting, two pole plates of High-voltage electrostatic purification device 2 occur short-circuit
It can disappear automatically with the flowing of greasy dirt again, be easy to produce 2 protection mechanism error starting of High-voltage electrostatic purification device at this time.Under
The alarm method for the High-voltage electrostatic purification device stated can then solve the problems, such as 2 protection mechanism error starting of High-voltage electrostatic purification device.
As shown in Fig. 2, the alarm method of the present embodiment mesohigh electrostatic filter, it is characterised in that including following step
It is rapid:
Range hood is opened:
S1, weight sensor 4 detect the real-time weight of High-voltage electrostatic purification device 2, and by High-voltage electrostatic purification device 2
Real-time weight is compared with the original weight of the High-voltage electrostatic purification device 2 stored in controller 5, and then it is net to obtain high-pressure electrostatic
2 increase weight is set in makeup；
Wherein the original weight of High-voltage electrostatic purification device 2 can be in product form, and the detection of weight sensor 4 obtains simultaneously
Send controller 5 to, and then the original weight as High-voltage electrostatic purification device 2 is stored；
S2, controller 5 carry out the weight gain threshold value stored in the increase weight of High-voltage electrostatic purification device 2 and controller 5
Compare, judges whether the increase weight of High-voltage electrostatic purification device 2 is greater than the weight gain threshold value of setting；If it is, carrying out S3.1；
If it is not, then carrying out S5；
Wherein the weight gain threshold value can be obtained before product export by test of many times, can such as be selected with high-pressure electrostatic
The range hood of purification device 2 carries out 6 months simulation tests in kitchen, and analog subscriber is daily to cook, and such as does 2 daily
Meal, 4 dishes of every meal control the total of every meal and use oil mass in 100g or so, every test 7 days, the weight gain to High-voltage electrostatic purification device 2
Amount is recorded, and corresponding tables of data is so obtained, and the curve matching of time and gain in weight is carried out using tables of data, and then can be with
A time point corresponding gain in weight is chosen as weight gain threshold value, corresponding gain in weight is as weight gain when can such as use 120 days
Threshold value, and then before product export, it is stored in controller 5；
S3, the real-time working electric current for obtaining High-voltage electrostatic purification device 2；
There are two types of the modes for obtaining the real-time working electric current of high pressure purge device；
S3.1, controller 5 control current detection circuit 3 and detect the real-time working for obtaining High-voltage electrostatic purification device 2 immediately
Electric current, the real-time working electric current that then current detection circuit 3 will test send controller 5 to；
The detection cycle of the operating current of High-voltage electrostatic purification device 2 is stored in S3.2, controller 5, controller 5 controls
Current detection circuit 3 detects the real-time working electric current of High-voltage electrostatic purification device 2 according to detection cycle, then current detection circuit
The 3 real-time working electric currents that will test send controller 5 to；
S4, controller 5 judge whether the real-time working electric current of High-voltage electrostatic purification device 2 is greater than the current threshold of setting；
If so, judging that the pollutant accumulated on the electrode of High-voltage electrostatic purification device 2 is more, then S10.1 is carried out, if it is not, then
Return to S3.2；
Before product export, which can be determined according to the operational data of High-voltage electrostatic purification device 2, into
And it stores and is used in the controller 5 for transferring；
S5, the real-time working electric current for obtaining High-voltage electrostatic purification device 2 is detected according to the operating current detection cycle of setting；
Judge whether the real-time working electric current of High-voltage electrostatic purification device 2 is greater than the current threshold of setting；If it is, can
It can be that contaminants then carry out S6 caused by a place on the electrode of High-voltage electrostatic purification device 2, if it is not, then returning
Return S1；
The stopping time threshold value and accumulation stopping time threshold of High-voltage electrostatic purification device 2 are stored in S6, controller 5
Value；The each time out of High-voltage electrostatic purification device 2 is also stored in controller 5；If stopping time threshold value can be 5 times,
Accumulating stopping time threshold value is 10 times, and each time out of High-voltage electrostatic purification device 2 is 5 minutes；
Controller 5 controls High-voltage electrostatic purification device 2 and stops working, and controller 5 stops High-voltage electrostatic purification device 2
The number only to work is counted；
S7, controller 5 judge whether the time that High-voltage electrostatic purification device 2 stops working reaches the time out of setting,
If it is, carrying out S8；
S8, the control starting High-voltage electrostatic purification device 2 of controller 5, controller 5 control current detection circuit 3 and detect immediately
Obtain High-voltage electrostatic purification device 2 real-time working electric current, and judge High-voltage electrostatic purification device 2 real-time working electric current whether
Greater than the current threshold of setting；If it is, S9 is carried out, if it is not, then returning to S1；
S9, during the one action of range hood, controller 5 judges stopping working for High-voltage electrostatic purification device 2
Whether number reaches the stopping time threshold value of setting；
Controller 5 judges whether the accumulative number that stops working of High-voltage electrostatic purification device 2 reaches accumulation stopping time simultaneously
Number threshold value；
The either condition for reaching both of the aforesaid condition then carries out S10.2；It is returned if both of the aforesaid condition is to reach
S6；
S10, starting 2 protection mechanism of High-voltage electrostatic purification device；
Wherein starting 2 protection mechanism of High-voltage electrostatic purification device includes:
S10.1, controller 5 control High-voltage electrostatic purification device 2 and stop working, while the control progress high pressure of controller 5 is quiet
The cleaning alarm of electric depurant 2；
S10.2, controller 5 control High-voltage electrostatic purification device 2 and stop working, while the control progress high pressure of controller 5 is quiet
2 fault alarm of electric depurant.
Claims (6)
1. a kind of alarm method of High-voltage electrostatic purification device, it is characterised in that the following steps are included:
S1, detect High-voltage electrostatic purification device (2) real-time weight, and by the real-time weight of High-voltage electrostatic purification device (2) with
The original weight of the High-voltage electrostatic purification device (2) of storage compares, and then obtains the increase weight of High-voltage electrostatic purification device (2)
Amount；
S2, judge whether the increase weight of High-voltage electrostatic purification device (2) is greater than the weight gain threshold value of setting；If it is, carrying out
S3；If it is not, then carrying out S5；
S3, the real-time working electric current for obtaining High-voltage electrostatic purification device (2)；
S4, judge whether the real-time working electric current of High-voltage electrostatic purification device (2) is greater than the current threshold of setting；If it is,
S10 is carried out, if it is not, then returning to S3；
S5, the real-time working electric current for obtaining High-voltage electrostatic purification device (2), judge the real-time work of High-voltage electrostatic purification device (2)
Make the current threshold whether electric current is greater than setting；If it is, S6 is carried out, if it is not, then returning to S1；
S6, High-voltage electrostatic purification device (2) stop working, and the number to stop working to High-voltage electrostatic purification device (2) is counted
Number；
S7, judge whether time that High-voltage electrostatic purification device (2) stops working reaches the time out of setting, if it is,
Carry out S8；
S8, starting High-voltage electrostatic purification device (2), detection obtain the real-time working electric current of High-voltage electrostatic purification device (2), and sentence
Whether the real-time working electric current of broken height pressure electrostatic filter (2) is greater than the current threshold of setting；If it is, carrying out S9, such as
Fruit is no, then returns to S1；
S9, judge that High-voltage electrostatic purification device (2) carries out one action in the equipment for being mounted with the High-voltage electrostatic purification device (2)
Whether the number that stops working in the process reaches the stopping time threshold value of setting；If so, carrying out S10；If it is not, then returning
S6；
S10, starting High-voltage electrostatic purification device (2) protection mechanism.
2. the alarm method of High-voltage electrostatic purification device according to claim 1, it is characterised in that: setting high-pressure electrostatic is net
The accumulation stopping time threshold value that (2) stop working is set in makeup；In S9, while judging the accumulative of High-voltage electrostatic purification device (2)
Whether the number that stops working reaches accumulation stopping time threshold value, if it is, S10 is carried out, if it is not, then returning to S6.
3. the alarm method of High-voltage electrostatic purification device according to claim 1 or 2, it is characterised in that: be transferred to when by S2
When carrying out S3, detection obtains the real-time working electric current of High-voltage electrostatic purification device (2) immediately；When returning to S3 by S4, according to setting
Fixed operating current detection cycle detection obtains the real-time working electric current of High-voltage electrostatic purification device (2)；
In S5, the real-time working electric current for obtaining High-voltage electrostatic purification device (2) is detected according to the operating current detection cycle of setting；
In S8, detection obtains the real-time working electric current of High-voltage electrostatic purification device (2) immediately.
4. the alarm method of High-voltage electrostatic purification device according to claim 1 or 2, it is characterised in that: high-pressure electrostatic is protected
Protection mechanism are as follows: High-voltage electrostatic purification device (2) stops working, while carrying out High-voltage electrostatic purification device (2) detection alarm.
5. the alarm method of High-voltage electrostatic purification device according to claim 4, it is characterised in that: when being transferred to S10 by S4
When, carry out High-voltage electrostatic purification device (2) cleaning alarm；When being transferred to S10 by S9, High-voltage electrostatic purification device (2) event is carried out
Barrier alarm.
6. a kind of suction of the alarm method using High-voltage electrostatic purification device according to any one of claims 1 to 5
Kitchen ventilator, it is characterised in that: net including range hood ontology (1) and the high-pressure electrostatic being arranged in range hood ontology (1)
(2), current detection circuit (3), weight sensor (4) and controller (5) are set in makeup, and weight sensor (4) setting exists
The lower section of the High-voltage electrostatic purification device (2), the range hood ontology (1), High-voltage electrostatic purification device (2), weight pass
Sensor (4) is electrically connected with controller (5) respectively, the current detection circuit (3) be connected electrically in High-voltage electrostatic purification device (2) and
Between controller (5).
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|---|---|---|---|
| CN201711478147.1A CN109990331B (en) | 2017-12-29 | 2017-12-29 | Alarm method of high-voltage electrostatic purification device and range hood applying alarm method |
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| CN201711478147.1A CN109990331B (en) | 2017-12-29 | 2017-12-29 | Alarm method of high-voltage electrostatic purification device and range hood applying alarm method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023209A (en) * | 2019-12-26 | 2020-04-17 | 张家口市杰星电子科技有限公司 | Control method and control system for high-voltage power supply of intelligent oil fume purifier |
| CN112762495A (en) * | 2021-02-18 | 2021-05-07 | 珠海格力电器股份有限公司 | Volute component and range hood with same |
| CN112963878A (en) * | 2021-03-29 | 2021-06-15 | 珠海格力电器股份有限公司 | Range hood control method, device and system and range hood |
| CN113048628A (en) * | 2021-03-29 | 2021-06-29 | 珠海格力电器股份有限公司 | Control method and control device of ionization purification equipment |
| WO2022043668A1 (en) * | 2020-08-29 | 2022-03-03 | Linx Printing Technologies Limited | Ink jet printer and method of monitoring an ink jet printer |
| CN114165892A (en) * | 2021-12-15 | 2022-03-11 | 珠海格力电器股份有限公司 | Cleaning prompting method and device for air purifier and air purifier |
| CN115267391A (en) * | 2022-07-26 | 2022-11-01 | 杭州老板电器股份有限公司 | Purifier state detection method and device, oil fume exhaust system and medium |
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