CN104548289A - Atomizer abnormity automatic detection device with replaceable atomizing spray head - Google Patents
Atomizer abnormity automatic detection device with replaceable atomizing spray head Download PDFInfo
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- CN104548289A CN104548289A CN201410782885.5A CN201410782885A CN104548289A CN 104548289 A CN104548289 A CN 104548289A CN 201410782885 A CN201410782885 A CN 201410782885A CN 104548289 A CN104548289 A CN 104548289A
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Abstract
The invention discloses an atomizer abnormity automatic detection device with a replaceable atomizing spray head. When the atomizing spray head is assembled on a host assembling part for the first time or a detachable atomizing spray head on an assembly is replaced, the impedance of a piezoelectricity element is smallest when a resonance state is formed according to an adjusted frequency besides the condition that the optimal working frequency of the piezoelectricity element can be automatically adjusted by an MCU (Microprogrammed Control Unit) microcomputer; moreover, an electrical relation indicating that the phase difference between current and voltage is zero is formed; in a normal atomizing use process, the microcomputer triggers a frequency-tracking prompter to inform reoperation of a frequency-tracking switch and readjustment of the working efficiency of the piezoelectricity element once a current/voltage phase comparison circuit determines that the current/voltage phase difference is not zero or is not approximate to zero, and the frequency-tracking prompter which is invalid is readjusted once or more times to keep prompting, so that the maintenance or replacement of the atomizing spray head can be judged easily. Accordingly, normal atomizing use of the atomizer can be managed and maintained conveniently through abnormity automatic detection.
Description
Technical field
The present invention is that relevant a kind of spraying is abnormal can sensing structure automatically, can simple judgment fog-spray nozzle the need of maintenance or replacing, use of espespecially normally spraying, has the nebulizer automatic sensing structure extremely of the replaceable fog-spray nozzle facilitating management and utilization.
Background technology
The inhalation-type drug administration nebulizer that recent application micro-electromechanical technology is developed, superfine micro-droplet can be produced and make medicament granular, promote drug absorption curative effect, and be convenient to carry with because of this nebulizer, bring great convenience to patient, but, after nebulizer carries out liquid pharmaceutical atomization work for a long time, fog-spray nozzle is often had the problem of blocking easily to occur, due to not easy to clean, so that there is a kind of fog-spray nozzle of nebulizer can carry out dismounting to change the outfit, and also have the advantage of patient medical health, safety concurrently.
Substantially, detachably change the outfit the nebulizer of fog-spray nozzle, when changing fog-spray nozzle faced by technical problem be the piezoelectric enable assembly of fog-spray nozzle, because of each assembly material or and each porous metals spray nozzle sheet between vibration characteristics all variant (and inconsistent), the operating frequency of piezoelectric element is caused to adjust, otherwise the atomization that cannot bring into normal play, though located by prior art has this problem, make as directly obtained from (vibrating perceptron) piezoelectric element the scheme that feedback signal carries out frequency adjustment, this feedback signal accuracy is not high, easily judge by accident, for this reason, commonly use as TaiWan, China announces No. M378790 " the micro-atomizing device structure of detachable shower nozzle " patent of invention case, (manually) the adjustment mode being then through variable resistance or variable capacitance is to reach the operating frequency that frequency conversion or adjustment set out piezoelectric element, but, the end user (consumer) of nebulizer, do not have electric detecting instrument auxiliary under, can because of adjustment process have no any science data can for modulation time reference, truly have the difficulty not easily recalling frequency optimum traffic, and this improving countermeasure, after also causing fog-spray nozzle to change, the inconvenience of manual frequency modulation and the puzzlement of not knowing how frequency modulation, front patent application of the present invention number is the Chinese invention patent " the dismountable fog-spray nozzle resonance frequency adjusting method of nebulizer and structure " of 201210009460.1, then utilize micro computer to chase after technology frequently, automatically resonance (best effort) frequency of piezoelectric element is adjusted, the inconvenience avoiding manual frequency adjustment to cause or error, but this one chases after the operating frequency that when frequently technology ties up to fog-spray nozzle on new clothes, institute adjusts out and is also locked, spray between the operating period backward, piezoelectric element maintains the operation at frequencies of this locking always, even if piezoelectric element or spray nozzle sheet occur extremely having had influence on micro-droplet granular degree, nebulizer also cannot be made in good time must readjust detecting of piezoelectric element operating frequency.
That is, superfine micro-droplet that medicament utilizes nebulizer to produce, the degree of its granular can affect the effect of drug absorption, usual user cannot judge the little difference of granular degree from micro-mist outward appearance of ejection, when finding that until big-difference obviously spraying is abnormal, may live through the absorption course for the treatment of of one section of invalid or poor effect; Such as, the obstructing problem of spray nozzle sheet, slowly block, instead of it is obviously abnormal to be just clogged to spraying in a short time, generally speaking, the situation that spray nozzle sheet one slightly blocks, the natural frequency that piezoelectric element is combined with spray nozzle sheet just may start to change or abnormal change, at this moment, the operating frequency of the former adjustment locking of micro computer may or not be desirable resonant frequency, and therefore the degree of micro-droplet granular should also can be deteriorated a little; And this degree be deteriorated, more and more seriously and more and more obvious especially with spray nozzle sheet degree of congestion, by the time when micro-droplet fine degree is obviously deteriorated and must changes fog-spray nozzle, piezoelectric element may or work a period of time under anti-resonance frequency, the nebulizer use that user is interior at this moment, often because assimilation effect is bad or not good, and reduce or lose effect; If nebulizer itself, whether the operating frequency that in use can detect piezoelectric element is at any time resonant frequency, then said circumstances, and oneself improves by again chasing after frequently and adjusting of operating frequency in good time; In addition, the non-exception under resonant frequency state of piezoelectric element, only piezoelectric element and or spray nozzle sheet there is gross distortion, breakage, wire dropout or assemble incorrect exception, and resonant frequency cannot be adjusted by micro computer, if be only slight distortion and slightly make the situation that natural frequency changes, when nebulizer itself has the test function whether piezoelectric element work under resonance state, be also by operating frequency again chase after frequently and adjustment maintains normal spray effect; Therefore, the nebulizer of replaceable fog-spray nozzle, except the technology frequently that chases after is solve except an important breakthrough invention of resonant frequency adjustment difficulty, how nebulizer detects under whether piezoelectric element is in resonance state in using works, and will be the new thinking that nebulizer is evolved in innovation.
Summary of the invention
Main purpose of the present invention is to provide a kind of abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle, is a nebulizer, includes a detachable fog-spray nozzle, a main frame and a liquor and fill tank, this fog-spray nozzle establishes a piezoelectric element and a spray nozzle sheet as spraying generating unit, this main frame, there is a group connecting part this fog-spray nozzle electric connection is provided, and inside provides power for operation by a battery to a circuit board, this circuit board have a MCU micro computer, an AMP power amplification unit, an electric current feedback signal generation unit, a voltage feedback signal generation unit, a current/voltage phase-comparison circuit, this micro computer is to one of this main frame surface access and picked out a spray switch, and chase after switch and frequently and chase after prompting apparatus frequently, this power amplification unit, using this micro computer as signal input part, and the outfan of this power amplification unit two pole, be then electrically connected with the piezoelectric element in this fog-spray nozzle, and on the outfan circuit of this two pole, be also in series with a resistance and be parallel with two resistance, this electric current feedback signal output unit, is by these resistance two ends of connecting between this power amplification unit with this piezoelectric element, detects the change of the signal of telecommunication, and to this micro computer output current back coupling value signal, this voltage feedback signal generation unit connects on circuit by this two resistance in parallel between this power amplification unit with this piezoelectric element and between this two resistance, detects the change of the signal of telecommunication, this current/voltage phase-comparison circuit, be obtain current waveform feedback signal by this electric current feedback signal generation unit and obtain voltage waveform feedback signal by this voltage feedback signal generation unit, and the decision signal of generation current/voltage phase difference export to micro computer, tank filled by this liquor, connects with spraying generating unit one end of this fog-spray nozzle, and inside has and communicates with this spraying generating unit, and the liquor room for providing liquor to fill, make host groups connect radicals by which characters are arranged in traditional Chinese dictionaries time group to connect fog-spray nozzle or complete fog-spray nozzle when changing, chase after the operation of switch frequently, except micro computer progressively sends a default frequency and more than one detection frequency, carry out chasing after frequency by electric current feedback signal generation unit output current back coupling value signal to micro computer process or compare, automatically adjust outside the frequency optimum traffic of piezoelectric element, when equaling piezoelectric element natural frequency according to the ac power frequency of power amplification unit output after adjustment and form resonance state, piezoelectric element impedance is minima, and electric current, voltage phase difference is the electrical relationship of zero, then when the operation by spray switch, normal spraying use procedure when piezoelectric element is worked under frequency optimum traffic, as long as current/voltage phase-comparison circuit one have Cutoff current/voltage phase difference non-vanishing or keep off zero abnormal case, namely micro computer can trigger this and chase after prompting apparatus frequently, inform that operation again chases after switch frequently and readjusts out the operating frequency of piezoelectric element, and readjust invalid this by one or many and chase after prompting apparatus frequently and still maintain prompting, simple judgment fog-spray nozzle needs maintenance or replacing, accordingly, the normal spraying of nebulizer uses, and automatically can be detected, obtain the benefit facilitating management and utilization by abnormal.
An of the present invention object is to provide a kind of nebulizer automatic sensing structure extremely of replaceable fog-spray nozzle, wherein, the circuit board of this main frame inside also has the cell voltage circuit for detecting that detects this battery power status, and the signal output part of this cell voltage circuit for detecting, be be electrically connected with this micro computer, and picked out an electric power prompting apparatus by this micro computer on the surface to one of this main frame; Make when battery electric power is not enough, and have and affect piezoelectric element when normally working, by the detecting of cell voltage circuit for detecting with detect, be by micro computer triggering electric power prompting apparatus, inform and must change battery, avoid inefficacy spray event to occur; And this electric power prompting apparatus, be a LED light emitting diode, can trigger the flashing of this electric power prompting apparatus by this micro computer or highlight action, prompting battery electric power be close to not enough or not enough.
Another object of the present invention is to provide a kind of abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle, wherein, the circuit board of this main frame inside also has a water level circuit for detecting, and, one is also provided with as the level sensor of this water level circuit for detecting input in the liquor room that tank filled by this liquor, and the outfan of this water level circuit for detecting, be electrically connected with this micro computer, and picked out a Water level prompter by this micro computer on the surface to one of this main frame; Make when in the liquor room that tank filled by liquor, liquor reduces to certain degree, water level circuit for detecting is through the induction of the water position status of level sensor in liquor room and can detect, export low water level signal to micro computer, namely Water level prompter is triggered by this micro computer, inform that must carry out liquor supplements, when even liquor room is close to anhydrous, micro computer can also stop the effect of spray switch, automatic closedown piezoelectric element, avoid piezoelectric element and or the anhydrous damage of spray nozzle sheet situation occur; This Water level prompter above-mentioned is again a LED light emitting diode, can by this micro computer trigger Water level prompter flashing or highlight action, prompting need supplementary liquor or because of liquor very few, stopped spraying.
Another object of the present invention is to provide a kind of abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle, wherein, what this micro computer picked out this main frame one surface chases after prompting apparatus frequently, it is a LED light emitting diode, can be triggered by this micro computer and chase after highlighting or flashing action of frequently prompting apparatus, prompting piezoelectric element to fail under frequency optimum traffic start or fault.
Accompanying drawing explanation
Fig. 1 is fog-spray nozzle of the present invention embodiment schematic diagram when disassembling;
Fig. 2 is the view before connecing with host groups after tank filled by fog-spray nozzle of the present invention combination liquor;
Fig. 3 is the state appearance schematic diagram that fog-spray nozzle of the present invention and main frame complete when group connects;
Fig. 4 is the sectional view that fog-spray nozzle of the present invention and main frame complete when group connects;
Fig. 5 is the every abnormal sensing structure schematic diagram of piezoelectric element frequency of the present invention adjustment.
Description of reference numerals: 10-fog-spray nozzle; 100-sprays generating unit; 11-spray orifice; Piezoelectric element 12; 13-spray nozzle sheet; 20-main frame; 21-group connecting part; 22-spray switch; 23-chases after switch frequently; 24-chases after prompting apparatus frequently; 25-electric power prompting apparatus; 26-Water level prompter; Tank filled by 30-liquor; 31-liquor room; 32-level sensor; 40-battery; 50-circuit board; 51-micro computer; 52-power amplification unit; 53-electric current feedback signal generation unit; 54-voltage feedback signal generation unit; 55-current/voltage phase-comparison circuit; 56-cell voltage circuit for detecting; 57-water level circuit for detecting; R1, R2, R3-resistance; 60-liquor.
Detailed description of the invention
The abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle, as Fig. 1,2,3,4, is a nebulizer, includes detachable fog-spray nozzle 10, main frame 20 and liquor filling tank 30, this fog-spray nozzle 10 establishes a piezoelectric element 12 and a spray nozzle sheet 13 as spraying generating unit 100, this main frame 20, there is a group connecting part 21 this fog-spray nozzle 10 electric connection is provided, as Fig. 4,5, and inside provides power for operation by a battery 40 to a circuit board 50, this circuit board 50 has MCU micro computer 51, AMP power amplification unit 52, electric current feedback signal generation unit 53, voltage feedback signal generation unit 54, current/voltage phase-comparison circuit 55, as shown in Fig. 3,5, this micro computer 51 is to one of this main frame 20 surface access and picked out a spray switch 22, and chase after switch 23 and frequently and chase after prompting apparatus 24 frequently, as shown in Figure 4,5, this power amplification unit 52 is using this micro computer 51 as signal input part, and the outfan of its two pole, then be electrically connected with the piezoelectric element 12 in this fog-spray nozzle 10, and on the outfan circuit of this two pole, be also in series with a resistance R1 and be parallel with two resistance R2, R3, this electric current feedback signal output unit 53, is by this resistance R1 two ends of connecting between this power amplification unit 52 with this piezoelectric element 12, detects the change of the signal of telecommunication, and to this micro computer 51 output current back coupling value signal, this voltage feedback signal generation unit 54 connects on circuit by this two resistance R2, R3 in parallel between this power amplification unit 52 with this piezoelectric element 12 and between this two resistance R2, R3, detects the change of the signal of telecommunication, this current/voltage phase-comparison circuit 55, be obtain current waveform feedback signal by this electric current feedback signal generation unit 53 and obtain voltage waveform feedback signal by this voltage feedback signal generation unit 54, and the decision signal of generation current/voltage phase difference export to micro computer 51, as shown in Figure 1,2,3, 4, tank 30 filled by this liquor, connects with spraying generating unit 100 one end of this fog-spray nozzle 10, and inside has and communicates with this spraying generating unit 100, and the liquor room 31 for providing liquor 60 to fill, as Fig. 3, 4, shown in 5, make main frame 20 group connecting part 21 first group connect fog-spray nozzle 10 or complete fog-spray nozzle 10 when changing, chase after the operation of switch 23 frequently, except micro computer 51 progressively sends a default frequency and more than one detection frequency, carry out chasing after frequency by electric current feedback signal generation unit 53 output current back coupling value signal to micro computer 51 process or compare, automatically adjust outside best effort (resonance) frequency of piezoelectric element 12, when equaling piezoelectric element 12 natural frequency fr according to the ac power frequency f of power amplification unit 52 output after adjustment and form resonance state (f=fr), piezoelectric element 12 impedance (Z, Ao Mu) be minima (Min), and electric current, voltage phase difference (φ) is zero (φ=0, therefore electric current I is Max maximum, namely piezoelectric element 12 is the Max maximum of normal spraying as kinetic power) electrical relationship, then when the operation by spray switch 22, make the normal spraying use procedure of piezoelectric element 12 under frequency optimum traffic (resonant frequency) during start, as long as current/voltage phase-comparison circuit 55 1 have Cutoff current/voltage phase difference (φ) non-vanishing or keep off zero abnormal case (φ ≠ 0 ° ± a °, a is a less constant of setting), namely micro computer 51 (NG) triggering can chase after prompting apparatus 24 frequently, inform that user operates again and chase after work (resonance) frequency that piezoelectric element 12 readjusted out by frequency switch 23, and the frequently prompting apparatus 24 that chases after readjusting invalid (cannot recall resonant frequency) by one or many still maintains prompting, simple judgment fog-spray nozzle 10 needs maintenance or replacing, accordingly, the normal spraying of nebulizer uses, and by (during piezoelectric element 12 non-resonant behavior) abnormal automatically detecting, can obtain the benefit facilitating management and utilization.
According to above-described embodiment, wherein, as Fig. 3,4,5, the circuit board 50 of this main frame 20 inside also has the cell voltage circuit for detecting 56 that detects this battery 40 power state, and the signal output part of this cell voltage circuit for detecting 56, be be electrically connected with this micro computer 51, and picked out an electric power prompting apparatus 25 by this micro computer 51 on the surface to one of this main frame 20; Make when battery 40 electric power is not enough, and when having an anxiety affecting the normal start (work) of piezoelectric element 12, by the detecting of cell voltage circuit for detecting 56 with detect, be trigger electric power prompting apparatus 25 by micro computer 51, inform that user must change battery, avoid (piezoelectric element 12 start is not normal) spray event generation of losing efficacy; And this electric power prompting apparatus 25 above-mentioned, be a LED light emitting diode, can triggered the flashing of electric power prompting apparatus 25 by this micro computer 51 or be highlighted action, prompting battery 40 electric power be close to not enough or not enough.
According to above-described embodiment, wherein, as shown in Fig. 3,4,5, the circuit board 50 of this main frame 20 inside also has a water level circuit for detecting 57, and, one is also provided with as the level sensor 32 (being such as a capacitive induction electrode bar) of this water level circuit for detecting 57 input in the liquor room 31 that tank 30 filled by this liquor, and the outfan of this water level circuit for detecting 57, be be electrically connected with this micro computer 51, and picked out a Water level prompter 26 by this micro computer 51 on the surface to one of this main frame 20, make when liquor in the liquor room 31 that tank 30 filled by liquor (because using) reduces to certain degree, water level circuit for detecting 57 is through the induction of the water position status of level sensor 32 in liquor room 31 and can detect, export low water level signal to micro computer 51, namely Water level prompter 26 is triggered by this micro computer 51, inform that user must carry out liquor and supplement, when being even close to anhydrous in liquor room 31, micro computer 51 can also stop (spraying starts) effect of spray switch 22, the start of automatic closedown piezoelectric element 12, avoid piezoelectric element 12 and or spray nozzle sheet 13 situation of damaging because of anhydrous occur, this Water level prompter 26 above-mentioned is again a LED light emitting diode, can be triggered the flashing of Water level prompter 26 by this micro computer 51 or be highlighted action, prompting user need supplementary liquor or because of liquor very few, stopped spraying.
According to above-described embodiment, wherein, as shown in Fig. 3,5, what this micro computer 51 picked out this main frame 20 1 surface chases after prompting apparatus 24 frequently, it is a LED light emitting diode, can be triggered by this micro computer 51 and chase after highlighting or flashing action of frequently prompting apparatus 24, start under frequency optimum traffic (improper spraying) or fault are failed in prompting user's piezoelectric element 12 (fog-spray nozzle 10).
More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, it will be understood by those skilled in the art that when not departing from the spirit and scope that description of the present invention limits; many amendments, change or equivalence can be made, but all will fall within the scope of protection of the present invention.
Claims (6)
1. the abnormal automatic sensing structure of the nebulizer of replaceable fog-spray nozzle, it is characterized in that, be a nebulizer, comprises a detachable fog-spray nozzle, a main frame and a liquor and fill tank; This fog-spray nozzle is for establishing a piezoelectric element and a spray nozzle sheet as spraying generating unit in a spray orifice inside; This main frame has a group connecting part for this fog-spray nozzle electric connection, and this group connecting part inside be by a battery to and a circuit board power for operation is provided, this circuit board has a micro computer, a power amplification unit, an electric current feedback signal generation unit, a voltage feedback signal generation unit, a current/voltage phase-comparison circuit; This micro computer, to one of this main frame surface access and picked out a spray switch, and chase after switch and frequently and chase after prompting apparatus frequently; This power amplification unit is using this micro computer as signal input part, and the outfan of this power amplification unit two pole, be then electrically connected with the piezoelectric element in this fog-spray nozzle, and on the outfan circuit of this two pole, be also in series with a resistance and be parallel with two resistance; This electric current feedback signal generation unit, is by these resistance two ends of connecting between this power amplification unit with this piezoelectric element, detects the change of the signal of telecommunication, and to this micro computer output current value feedback signal; This voltage feedback signal generation unit connects on circuit by this two resistance in parallel between this power amplification unit with this piezoelectric element and between this two resistance, detects the change of the signal of telecommunication; This current/voltage phase-comparison circuit, be obtain current waveform feedback signal by this electric current feedback signal generation unit and obtain voltage waveform feedback signal by this voltage feedback signal generation unit, and the decision signal of generation current/voltage phase difference export to this micro computer; Tank filled by this liquor, connects with spraying generating unit one end of this fog-spray nozzle, and inside has and communicates with this spraying generating unit, and the liquor room for providing liquor to fill.
2. according to the abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle according to claim 1, it is characterized in that, the circuit board of this main frame inside also has the cell voltage circuit for detecting that detects this battery power status, and the signal output part of this cell voltage circuit for detecting, be electrically connected with this micro computer, and connect an electric power prompting apparatus by this micro computer on the surface to one of this main frame.
3., according to the abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle according to claim 2, it is characterized in that, this electric power prompting apparatus, is a LED light emitting diode.
4. according to the abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle according to claim 1, it is characterized in that, the circuit board of this main frame inside also has a water level circuit for detecting, and, one is also provided with as the level sensor of this water level circuit for detecting input in the liquor room that tank filled by this liquor, and the outfan of this water level circuit for detecting, be electrically connected with this micro computer, and pick out a Water level prompter by this micro computer on the surface to one of this main frame.
5., according to the abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle according to claim 4, it is characterized in that, this Water level prompter, is a LED light emitting diode.
6., according to the abnormal automatic sensing structure of nebulizer of replaceable fog-spray nozzle according to claim 1, it is characterized in that, this micro computer this main frame one surface is picked out this chase after prompting apparatus frequently, be a LED light emitting diode.
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| CN201410782885.5A CN104548289B (en) | 2014-12-16 | 2014-12-16 | The extremely automatic sensing structure of the atomizer of replaceable fog-spray nozzle |
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| CN105126212A (en) * | 2015-10-12 | 2015-12-09 | 王天星 | Adjustable atomization circuit and control method |
| CN106178202A (en) * | 2016-08-20 | 2016-12-07 | 慈溪舜业医疗器材有限公司 | A kind of hand-held microgrid nebulizer and application process thereof |
| CN109689230A (en) * | 2016-09-27 | 2019-04-26 | 欧姆龙健康医疗事业株式会社 | Ultrasonic oscillator driving device and mesh type sprayer |
| CN111282107A (en) * | 2020-03-12 | 2020-06-16 | 张尊敬 | Respiratory medicine atomization drug delivery device capable of adjusting drug delivery speed |
| CN112827020A (en) * | 2021-01-06 | 2021-05-25 | 北京谊安医疗系统股份有限公司 | Ultrasonic atomizer based on single IO multi-mode |
| CN114191663A (en) * | 2021-12-16 | 2022-03-18 | 珠海格力电器股份有限公司 | Atomizer control method, storage medium, processor and atomizer |
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| CN112827020A (en) * | 2021-01-06 | 2021-05-25 | 北京谊安医疗系统股份有限公司 | Ultrasonic atomizer based on single IO multi-mode |
| CN114191663A (en) * | 2021-12-16 | 2022-03-18 | 珠海格力电器股份有限公司 | Atomizer control method, storage medium, processor and atomizer |
| CN114191663B (en) * | 2021-12-16 | 2022-08-26 | 珠海格力电器股份有限公司 | Atomizer control method, storage medium, processor and atomizer |
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