CN109442701A - Air-conditioning automatic dust removing control circuit - Google Patents
Air-conditioning automatic dust removing control circuit Download PDFInfo
- Publication number
- CN109442701A CN109442701A CN201811586164.1A CN201811586164A CN109442701A CN 109442701 A CN109442701 A CN 109442701A CN 201811586164 A CN201811586164 A CN 201811586164A CN 109442701 A CN109442701 A CN 109442701A
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- CN
- China
- Prior art keywords
- air
- conditioning
- dust
- relay
- type triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 102
- 238000004378 air conditioning Methods 0.000 title claims abstract description 56
- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
The present invention provides a kind of air-conditioning automatic dust removing control circuit comprising resistance R1(1), NPN type triode Q1(2), relay RL1(3), Light-Emitting Diode LED1(4), N-channel MOS FET Q2(5), motor M1(6), resistance R2(7), resistance R3(8), electrolytic capacitor C1(9), PNP type triode Q3(10), photosensitive sensor VT1(11).The present invention is detected when outside air enters air-conditioning, in the more situation of dust, photosensitive sensor VT1(11) and cut-off, NPN type triode Q1(2) conducting, relay RL1(3) being powered is attracted, and dust guard closed electromagnetic valve is attracted, dust guard closure, completely cuts off the entrance of external dust；Amount of dust reduces to a certain extent, photosensitive sensor VT1(11) conducting, the motor M1(6 within 2 seconds) rotation of rotate driving dust absorption fan, it further takes air-conditioning inner air away, both ensure that indoor ventilation was also reduced with this and indoor Dust Capacity is flowed by air-conditioning.
Description
Technical field
The present invention relates to a kind of air-conditioning automatic dust removing control circuits.
Background technique
Currently, dust, dust are more and more in urban air as urbanization promotes, therefore many people have suffered from rhinitis
Etc. anaphylactias (especially child), while the harm of air-conditioning have one be exactly it is sluggish in air circulation, be used for a long time be easy
Air conditioner disease, currently, the problem of air-conditioning products of mainstream have also contemplated filtering dust and dust on the market, has also installed Air Filter additional,
But be it is fixed, need periodically to clean and replacement, otherwise will block or block air flue, even more serious pollution interior
Air.There is no to cleaning Air Filter January, the habit that half a year one changes, in this way length time are easy for most of air-conditioning users in the past
Obtain respiratory disease.If timing replacement material takes, visit charge etc. expense cost is high.
Summary of the invention
The present invention to solve the above-mentioned problems, provides a kind of air-conditioning automatic dust removing control circuit.The circuit can into
Enter air-conditioning internal dust it is few in the case where open dust excluding plate by free air circulation, be closed in the case where dust is more dust-proof
Plate filters dust, simultaneously because dust excluding plate has rotary movement often, the dust that can also shake off thereon, so the invention can be shown
The extension dust excluding plate service life of work reduces maintenance times, is able to extend dust excluding plate service life 2 times or more on average, subtracts
Few maintenance times 70%, while ensure that for a long time has fresh air unhinderedly to enter the room, and promotes the health of human body.
To achieve the above object, the technical solution adopted by the present invention is that: it includes resistance R1(1), NPN type triode Q1
(2), relay RL1(3), Light-Emitting Diode LED1(4), N-channel MOS FET Q2(5), motor M1(6), resistance R2(7), resistance
R3(8), electrolytic capacitor C1(9), PNP type triode Q2(10), photosensitive sensor VT1(11).+ 5 volt power supply, R2(7) it gives
Light-Emitting Diode LED1(4) 40 milliamperes of operating current is provided, and emit beam, in the case where air-conditioning internal dust is less,
Light-Emitting Diode LED1(4) issue light, can be by photosensitive sensor VT1(11) receive, photosensitive sensor VT1(11) lead
Logical, NPN type triode Q1(2) base stage obtains a low level cut-off, and then N-channel MOS FET Q2(5) grid is low level,
It is also switched off, relay RL1(3) input terminal power-off, relay RL1(3) output end disconnection, the release of dust guard relay electric-loss, screening
Dirt plate is opened, and air directly flows into interior by air-conditioning, while in 2 seconds of booting, photosensitive sensor VT1(11) it leads
Logical PNP type triode Q3(10) one low level conducting of base stage acquisition, motor M1(6) electric rotation is obtained, dust absorption fan rotation is driven,
Further take air relatively dirty inside air-conditioning away；+ 5 volt power supply, R2(7) give Light-Emitting Diode LED1(4) provide 40
The operating current of milliampere, and emit beam, in the case where air-conditioning internal dust is more, Light-Emitting Diode LED1(4) issue
Light, be blocked photosensitive sensor VT1(11) cut-off, NPN type triode Q1(2) one high level conducting of base stage acquisition, in turn
N-channel MOS FET Q2(5) grid is high level, be also switched on, relay RL1(3) input terminal obtains electric, relay RL1(3) output
End is attracted, and dust guard relay obtains electric actuation, dust guard closure, and air needs to flow into inside air-conditioning by dust guard, and dust is fast
Speed is reduced, and amount of dust reduces to a certain extent, photosensitive sensor VT1(11) conducting, PNP type triode Q3(10) conducting about 2
Second, the motor M1(6 within 2 seconds) rotation of rotate driving dust absorption fan, further take air-conditioning inner air, while solenoid valve away
Release, dust guard are opened, and outside air flows into interior by air-conditioning, both ensure that indoor ventilation was also reduced with this and have been passed through sky
It adjusts and flows into indoor Dust Capacity.
Further, the R1(1) on terminate+5 volt power supplys, R1(1) under terminate Q1(2) base stage, VT1(11) input terminal,
Electrolytic capacitor C1(9) negative terminal；The Q1(2) collector meets+5 volt power supplys, Q1(2) emitter meets N-channel MOS FET Q2(5) grid
Pole, resistance R3(8) upper end；The Light-Emitting Diode LED1(4)+5 volt power supplys of positive termination, Light-Emitting Diode LED1(4) negative terminal connects
Resistance R2(7) upper end；The resistance R2(7) lower end, photosensitive sensor VT1(11) output end, resistance R3(8) lower end, positive-negative-positive three
Pole pipe Q3(10) collector, N-channel MOS FET Q2(5) source electrode ground connection；The relay RL1(3) input terminal top connects+24 volts
Power supply, relay RL1(3) input terminal lower part meets N-channel MOS FET Q2(5) drain electrode, relay RL1(3) it terminates under output end and hides
Dirt plate drives relay, relay RL1(3)+24 volt power supplys are terminated on output end；The electrolytic capacitor C1(9) right end connects positive-negative-positive
Triode Q3(10) base stage；The motor M1(6) on terminate+24 volt power supplys, motor M1(6) under terminate PNP type triode Q3
(10) collector.
The Light-Emitting Diode LED1(4) model SCP8506.
The photosensitive sensor VT1(11) model SDP8406.
The NPN type triode Q1(2) model MJD112-001.
The N-channel MOS FET Q2(5) model 2N7002E.
The PNP type triode Q3(10) model 2SB718.
The relay RL1(3) model RLY-SPNO.
The electrolytic capacitor C1(9) model 16V33UF.
In the case where air-conditioning internal dust is less, the working principle of the invention is :+5 volt power supply, R2(7) to luminous
Diode LED1(4) 40 milliamperes of operating current is provided, and emit beam, in the case where air-conditioning internal dust is less, shine
Diode LED1(4) issue light, can be by photosensitive sensor VT1(11) receive, photosensitive sensor VT1(11) conducting, NPN
Type triode Q1(2) base stage obtains the cut-off of low level, and then N-channel MOS FET Q2(5) grid is low level, it is also switched off,
Relay RL1(3) input terminal power-off, relay RL1(3) output end disconnects, and the release of dust guard relay electric-loss, dust guard beats
Open, air directly flows into interior by air-conditioning, while in 2 seconds of booting, photosensitive sensor VT1(11) conducting PNP
Type triode Q3(10) one low level conducting of base stage acquisition, motor M1(6) obtain electric rotation, driving dust absorption fan rotation, into one
Step takes air relatively dirty inside air-conditioning away.
In the case where air-conditioning internal dust is more, the working principle of the invention is :+5 volt power supply, R2(7) to luminous
Diode LED1(4) 40 milliamperes of operating current is provided, and emit beam, in the case where air-conditioning internal dust is more, shine
Diode LED1(4) issue light, be blocked photosensitive sensor VT1(11) cut-off, NPN type triode Q1(2) base stage obtain
The conducting of one high level, and then N-channel MOS FET Q2(5) grid is high level, be also switched on, relay RL1(3) input terminal obtains
Electricity, relay RL1(3) output end is attracted, and dust guard relay obtains electric actuation, and dust guard closure, air needs to pass through dust guard
Flow into inside air-conditioning, dust is reduced rapidly, and amount of dust reduces to a certain extent, photosensitive sensor VT1(11) conducting, positive-negative-positive three
Pole pipe Q3(10) conducting about 2 seconds, the motor M1(6 within 2 seconds) rotation of rotate driving dust absorption fan, further take air-conditioning away
Inner air, while solenoid valve discharges, dust guard is opened, and outside air flows into interior by air-conditioning, both ensure that interior with this
Ventilation also reduce indoor Dust Capacity flowed by air-conditioning.
Simultaneously because dust excluding plate has rotary movement often, the dust that can also shake off thereon, so the invention can be significant
Extend dust excluding plate service life, reduce maintenance times, be able to extend dust excluding plate service life 2 times or more on average, reduces dimension
Number 70% is protected, while ensure that for a long time has fresh air unhinderedly to enter the room, and promotes the health of human body.
Prevent the invention has the following advantages: the present invention can open in the case where few into air-conditioning internal dust
Dirt plate is closed dust excluding plate in the case where dust is more by free air circulation, dust is filtered, simultaneously because dust excluding plate has often
Rotary movement can also shake off dust thereon, so the invention can significantly extend dust excluding plate service life, reduce maintenance time
Number is able to extend dust excluding plate service life 2 times or more on average, reduces maintenance times 70%, while ensure that have for a long time newly
Fresh air unhinderedly enters the room, and promotes the health of human body.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention are not being paid for those of ordinary skill in the art, under the premise of creative labor, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, air-conditioning automatic dust removing control circuit includes resistance R1(1), NPN type triode Q1(2), relay
RL1(3), Light-Emitting Diode LED1(4), N-channel MOS FET Q2(5), motor M1(6), resistance R2(7), resistance R3(8), electrolysis
Capacitor C1(9), PNP type triode Q3(10), photosensitive sensor VT1(11).+ 5 volt power supply, R2(7) give Light-Emitting Diode
LED1(4) 40 milliamperes of operating current is provided, and emitted beam, in the case where air-conditioning internal dust is less, Light-Emitting Diode
LED1(4) the light issued, can be by photosensitive sensor VT1(11) receive, photosensitive sensor VT1(11) conducting, three pole of NPN type
Pipe Q1(2) base stage obtains the cut-off of low level, and then N-channel MOS FET Q2(5) grid is low level, it is also switched off, relay
RL1(3) input terminal powers off, relay RL1(3) output end disconnection, the release of dust guard relay electric-loss, dust guard opening, air
Interior is directly flowed by air-conditioning, while in 2 seconds of booting, photosensitive sensor VT1(11) conducting PNP type triode
Q3(10) base stage obtains a low level conducting, motor M1(6) electric rotation is obtained, sky is further taken in driving dust absorption fan rotation away
Adjust internal relatively dirty air；+ 5 volt power supply, R2(7) to 40 milliamperes of Light-Emitting Diode LED1(4) offer of work electricity
Stream, and emits beam, in the case where air-conditioning internal dust is more, Light-Emitting Diode LED1(4) light that issues, be blocked sense
Optical sensor VT1(11) cut-off, NPN type triode Q1(2) base stage obtains a high level and is connected, and then N-channel MOS FET
Q2(5) grid is high level, is also switched on, relay RL1(3) input terminal obtains electric, relay RL1(3) output end is attracted, dust guard
Relay obtains electric actuation, dust guard closure, and air needs to flow into inside air-conditioning by dust guard, and dust is reduced rapidly, amount of dust
Reduce to a certain extent, photosensitive sensor VT1(11) conducting, PNP type triode Q3(10) conducting about 2 seconds, within 2 seconds
Motor M1(6) rotation of rotate driving dust absorption fan, further take air-conditioning inner air away, while solenoid valve discharges, dust guard is beaten
Open, outside air flowed by air-conditioning it is indoor, both ensure that with this indoor ventilation also reduce flowed by air-conditioning it is indoor
Dust Capacity.The R1(1) on terminate+5 volt power supplys, R1(1) under terminate Q1(2) base stage, VT1(11) input terminal, electrolytic capacitor C1
(9) negative terminal；The Q1(2) collector meets+5 volt power supplys, Q1(2) emitter meets N-channel MOS FET Q2(5) grid, resistance R3
(8) upper end；The Light-Emitting Diode LED1(4)+5 volt power supplys of positive termination, Light-Emitting Diode LED1(4) negative terminal connecting resistance R2(7)
Upper end；The resistance R2(7) lower end, photosensitive sensor VT1(11) output end, resistance R3(8) lower end, PNP type triode Q3
(10) collector, N-channel MOS FET Q2(5) source electrode ground connection；The relay RL1(3) input terminal top connects+24 volt power supplys, after
Electric appliance RL1(3) input terminal lower part meets N-channel MOS FET Q2(5) drain electrode, relay RL1(3) termination dust guard drives under output end
Motor type relay, relay RL1(3)+24 volt power supplys are terminated on output end；The electrolytic capacitor C1(9) right end connects PNP type triode
Q3(10) base stage；The motor M1(6) on terminate+24 volt power supplys, motor M1(6) under terminate PNP type triode Q3(10) current collection
Pole.The Light-Emitting Diode LED1(4) model SCP8506.The photosensitive sensor VT1(11) model SDP8406.
The NPN type triode Q1(2) model MJD112-001.The N-channel MOS FET Q2(5) model 2N7002E.
The PNP type triode Q3(10) model 2SB718.The relay RL1(3) model RLY-SPNO.The electrolysis
Capacitor C1(9) model 16V33UF.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. it is characterized by comprising resistance R1(1), NPN type triode Q1(2 for air-conditioning automatic dust removing control circuit), relay RL1
(3), Light-Emitting Diode LED1(4), N-channel MOS FET Q2(5), motor M1(6), resistance R2(7), resistance R3(8), electrolysis electricity
Hold C1(9), PNP type triode Q3(10), photosensitive sensor VT1(11)；The R1(1) on terminate+5 volt power supplys, R1(1) lower end
Meet Q1(2) base stage, VT1(11) input terminal, electrolytic capacitor C1(9) negative terminal；The Q1(2) collector meets+5 volt power supplys, Q1(2) hair
Emitter-base bandgap grading meets N-channel MOS FET Q2(5) grid, resistance R3(8) upper end；The Light-Emitting Diode LED1(4) positive termination+5 volts electricity
Source, Light-Emitting Diode LED1(4) negative terminal connecting resistance R2(7) upper end；The resistance R2(7) lower end, photosensitive sensor VT1(11) it is defeated
Outlet, resistance R3(8) lower end, PNP type triode Q3(10) collector, N-channel MOS FET Q2(5) source electrode ground connection；The relay
Device RL1(3) input terminal top meets+24 volt power supplys, relay RL1(3) input terminal lower part meets N-channel MOS FET Q2(5) drain electrode,
Relay RL1(3) under output end termination dust guard drive relay, relay RL1(3) terminate+24 volt power supplys on output end；Institute
State electrolytic capacitor C1(9) right end meets PNP type triode Q3(10) base stage；The motor M1(6) on terminate+24 volt power supplys, motor
M1(6 PNP type triode Q3(10 is terminated under)) collector；+ 5 volt power supply, R2(7) give Light-Emitting Diode LED1(4) provide
40 milliamperes of operating current, and emit beam.
2. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: less in air-conditioning internal dust
In the case of, Light-Emitting Diode LED1(4) issue light, can be by photosensitive sensor VT1(11) receive, photosensitive sensor VT1
(11) be connected, NPN type triode Q1(2) base stage obtains the cut-off of low level, and then N-channel MOS FET Q2(5) grid is low
Level is also switched off, relay RL1(3) input terminal power-off, relay RL1(3) output end disconnects, and dust guard relay electric-loss releases
It puts, dust guard is opened, and air directly flows into interior, in 2 seconds of booting, photosensitive sensor VT1(11 by air-conditioning)
PNP type triode Q3(10 is connected) one low level conducting of base stage acquisition, motor M1(6) electric rotation is obtained, driving dust absorption fan turns
It is dynamic, further take air relatively dirty inside air-conditioning away.
3. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: more in air-conditioning internal dust
In the case of, Light-Emitting Diode LED1(4) issue light, be blocked photosensitive sensor VT1(11) cut-off, NPN type triode Q1
(2) base stage obtains the conducting of high level, and then N-channel MOS FET Q2(5) grid is high level, it is also switched on, relay RL1
(3) input terminal obtains electric, relay RL1(3) output end is attracted, and dust guard relay obtains electric actuation, and dust guard closure, air needs
Flowed into inside air-conditioning by dust guard, dust is reduced rapidly, and amount of dust reduces to a certain extent, photosensitive sensor VT1(11) it leads
It is logical, PNP type triode Q3(10) conducting about 2 seconds, the motor M1(6 within 2 seconds) rotation of rotate driving dust absorption fan, into one
Step takes air-conditioning inner air away, while solenoid valve discharges, and dust guard is opened, and outside air flows into interior by air-conditioning, both with this
It ensure that indoor ventilation also reduces and indoor Dust Capacity flowed by air-conditioning.
4. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the Light-Emitting Diode LED1(4)
Model SCP8506.
5. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the photosensitive sensor VT1(11)
Model SDP8406.
6. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the NPN type triode Q1(2)
Model MJD112-001.
7. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the N-channel MOS FET Q2(5)
Model 2N7002E.
8. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the PNP type triode Q3(10)
Model 2SB718.
9. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the relay RL1(3) type
Number be RLY-SPNO.
10. air-conditioning automatic dust removing control circuit according to claim 1 is it is characterized by: the electrolytic capacitor C1(9)
Model 16V33UF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586164.1A CN109442701B (en) | 2018-12-25 | 2018-12-25 | Automatic dust-removing control circuit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586164.1A CN109442701B (en) | 2018-12-25 | 2018-12-25 | Automatic dust-removing control circuit of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109442701A true CN109442701A (en) | 2019-03-08 |
| CN109442701B CN109442701B (en) | 2023-12-19 |
Family
ID=65535162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811586164.1A Active CN109442701B (en) | 2018-12-25 | 2018-12-25 | Automatic dust-removing control circuit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442701B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065472A (en) * | 2019-05-22 | 2019-07-30 | 昆明理工大学津桥学院 | Automobile damage preventing alarm circuit |
| CN112146200A (en) * | 2020-09-27 | 2020-12-29 | 金永青 | Intelligence air purification equipment for house based on thing networking |
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| CN2111525U (en) * | 1991-10-19 | 1992-07-29 | 孙九皋 | Automatic dust-proof and measuring device |
| JP2001087612A (en) * | 1999-09-27 | 2001-04-03 | Hiroyuki Terasaki | Small-sized dustproof apparatus |
| CN107885272A (en) * | 2017-11-27 | 2018-04-06 | 昆明理工大学津桥学院 | Card reader photoelectric sensor antidusting regulating circuit |
| KR101875056B1 (en) * | 2018-02-26 | 2018-07-06 | (주)파코코리아인더스 | Ventilation system and method |
| CN209279352U (en) * | 2018-12-25 | 2019-08-20 | 昆明理工大学津桥学院 | Air-conditioning automatic dust removing control circuit |
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| CN2111525U (en) * | 1991-10-19 | 1992-07-29 | 孙九皋 | Automatic dust-proof and measuring device |
| JP2001087612A (en) * | 1999-09-27 | 2001-04-03 | Hiroyuki Terasaki | Small-sized dustproof apparatus |
| CN107885272A (en) * | 2017-11-27 | 2018-04-06 | 昆明理工大学津桥学院 | Card reader photoelectric sensor antidusting regulating circuit |
| KR101875056B1 (en) * | 2018-02-26 | 2018-07-06 | (주)파코코리아인더스 | Ventilation system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110065472A (en) * | 2019-05-22 | 2019-07-30 | 昆明理工大学津桥学院 | Automobile damage preventing alarm circuit |
| CN112146200A (en) * | 2020-09-27 | 2020-12-29 | 金永青 | Intelligence air purification equipment for house based on thing networking |
| CN112146200B (en) * | 2020-09-27 | 2023-09-15 | 青岛康伦机电有限公司 | Intelligent household air purification equipment based on Internet of things |
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| Publication number | Publication date |
|---|---|
| CN109442701B (en) | 2023-12-19 |
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