CN203068671U - Double-operational-mode air purifier - Google Patents

Double-operational-mode air purifier Download PDF

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Publication number
CN203068671U
CN203068671U CN 201320023369 CN201320023369U CN203068671U CN 203068671 U CN203068671 U CN 203068671U CN 201320023369 CN201320023369 CN 201320023369 CN 201320023369 U CN201320023369 U CN 201320023369U CN 203068671 U CN203068671 U CN 203068671U
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China
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air
double
mode
new wind
pressure fan
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Expired - Fee Related
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CN 201320023369
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Chinese (zh)
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孙杰
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孙杰
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Abstract

The utility model discloses a double-operational-mode air purifier. The double-operational-mode air purifier comprises a shell and a controller. A fresh air channel, an air return channel and a heat exchanger are arranged inside the shell. The fresh air channel and the air return channel are respectively connected with the heat exchanger. An electrostatic precipitator is arranged inside the fresh air channel. A first power-driven air valve is connected between the fresh air channel and the air return channel. An air inlet is provided with a second power-driven air valve. The first power-driven air valve and the second power-driven air valve are controlled by the controller, wherein when the first power-driven air valve is opened, the controller controls an exhaust fan to stop; and when the second power-driven air valve is opened, the controller controls an air feeder and the exhaust fan to operate. The double-operational-mode air purifier can achieve shifting of an indoor air circulation purification mode and a fresh air purification mode, is good in air purification effect, and can reduce energy consumption of air temperature processing.

Description

A kind of air cleaner of double-mode
Technical field
The utility model relates to the air purifying process field, is specifically related to a kind of air cleaner of double-mode.
Background technology
Along with industrialization and modernization are accelerated, the air pollution situation is serious day by day, and particularly this class pellet of PM2.5 is very big to the infringement of health.In people's all one's life, the most of the time is spent indoor, and the quality of indoor air quality directly influences people's health.Removing this pollutant of PM2.5 in the room air, is very urgent demand.
In order to improve IAQ, in the prior art, worked out a kind of air purifier, after room air is handled by step purge such as dedusting, sterilization, filtrations, drain into indoorly again, room air is formed circulate.Room air circulates for a long time, and airborne oxygen content reduces, and bacterium is increased, and the quality of room air reduces.In order to overcome the above problems, those skilled in the art adopt the mode of introducing new wind, and it is indoor that outdoor fresh air is purified the back introducing, to the mode of indoor additional air, reaches the purpose that improves IAQ by constantly.This technology realizes that by new blower fan is installed new blower fan makes outdoor air and room air form convection current, and carries out heat exchange by heat exchanger, takes full advantage of heat (cold) amount of room air, makes the temperature of new wind be tending towards indoor temperature.Yet during for bad weather such as extremely cold, very hot, the outdoor and indoor temperature difference is bigger when outdoor, outdoor air is introduced indoor, when having improved air quality, must increase the energy consumption of the Temperature Treatment of air, as the energy consumption of air-conditioning; And outdoor when being bad weather, introduce new wind and can reduce the people in indoor comfort level.Along with the further deterioration of environment, the time of annual extreme weather accounts for 1/3 of the whole year at present, and therefore, the use of new blower fan can increase the Temperature Treatment energy consumption of air greatly.
The utility model content
The purpose of this utility model is to overcome above shortcoming, a kind of good air purification effect is provided, can reduces the air cleaner that air themperature is handled the double-mode of energy consumption.
The technical solution of the utility model is:
A kind of air cleaner of double-mode, comprise casing and controller, be provided with new wind passage and return air channel in the described casing, described new wind passage comprises air inlet, pressure fan and air outlet, and described return air channel comprises indoor air inlet, exhaust blower and exhaust outlet;
Be provided with a heat exchanger in the described casing, described new wind passage is connected with described heat exchanger respectively with described return air channel, is provided with electrostatic precipitator in the described new wind passage;
Be connected with first Electric air valve between described new wind passage and the described return air channel, described air inlet is provided with second Electric air valve, described first Electric air valve controlled by described controller and second Electric air valve switches, when described first Electric air valve is opened, described controller is controlled described exhaust blower and is stopped, when described second Electric air valve was opened, described controller was controlled described pressure fan and exhaust blower operation.
Further, described electrostatic precipitator is the two-region electrostatic precipitator, and described two-region electrostatic precipitator is divided into charging area and captures the district.
Further, the voltage of described charging area is 8000V, and the voltage in described capture district is 4000V.
Further, be provided with the ozone purification filter screen in the described new wind passage, described ozone purification filter screen is arranged between described electrostatic precipitator and the described pressure fan.
Further, also be provided with high efficiency particulate air in the described new wind passage, described high efficiency particulate air is arranged between described ozone purification filter screen and the described pressure fan.
Further, described air cleaner also comprises a frequency converter, the rotating speed of the described pressure fan of described Frequency Converter Control and exhaust blower.
Further, be provided with the Detection of Air Quality element in the described return air channel, the signal of described Detection of Air Quality element testing transfers to described frequency converter by described controller.
Further, the import of described new wind passage and described return air channel is respectively arranged with the coarse filtration filter screen.
Further, be provided with plenum chamber between described pressure fan and the described air outlet.
Further, the air quantity of described pressure fan is greater than the air quantity of described exhaust blower.
The air cleaner of the double-mode that the utility model provides has following advantage:
1, the air cleaner of the double-mode that provides of the utility model can reduce air themperature and handle energy consumption.The air cleaner of the double-mode that the utility model provides, comprise casing and controller, described casing is provided with new wind passage and return air channel, and described new wind passage comprises air inlet, pressure fan and air outlet, and described return air channel comprises indoor air inlet, exhaust blower and exhaust outlet; Be provided with a heat exchanger in the described casing, described new wind passage is connected with described heat exchanger respectively with described return air channel, is provided with electrostatic precipitator in the described new wind passage; Be connected with first Electric air valve between described new wind passage and the described return air channel, described air inlet is provided with second Electric air valve, described first Electric air valve controlled by described controller and second Electric air valve switches, when described first Electric air valve is opened, described controller is controlled described exhaust blower and is stopped, when described second Electric air valve was opened, described controller was controlled described pressure fan and exhaust blower operation.Because controller is controlled first Electric air valve and second Electric air valve switches, when first Electric air valve is opened, second Electric air valve is closed, and simultaneously, exhaust blower is out of service, at this moment, in air cleaner, room air enters in the new wind passage through indoor air inlet, first Electric air valve, drains into indoor through electrostatic precipitator, pressure fan, form circulation in the room air, this pattern is room air circularly purifying pattern.When outdoor weather was extreme weather, indoor/outdoor temperature-difference was big, adopted this pattern, can reduce the energy consumption that indoor air temperature is handled.When the air that needs the indoor and outdoor carries out convection current, start the fresh air purifying pattern, at this moment, second Electric air valve is opened, and first Electric air valve is closed, pressure fan and exhaust blower operation, outdoor wind enters from air inlet, and in inlet chamber after the new wind passage purified treatment, indoor air drains into outdoor through return air channel, realize the convection current of indoor-outdoor air, improve the quality of room air.
The double-mode air cleaner that the utility model provides uses the fresh air purifying pattern under normal conditions, and is better or outdoor when being in extreme weather when IAQ, can use room air circularly purifying pattern, purifies the air of a room.Weather present situation just at present, the time of annual extreme weather accounts for annual 1/3, and therefore, the double-mode air cleaner that uses the utility model to provide can significantly reduce the energy consumption of the Temperature Treatment of room air.
The double-mode air cleaner that the utility model provides, be provided with a frequency converter, the rotating speed that is used for control pressure fan and exhaust blower, and be provided with the Detection of Air Quality element in the return air channel, the signal of Detection of Air Quality element testing transfers to frequency converter by controller, frequency converter is adjusted the rotating speed of pressure fan and exhaust blower according to the signal that receives, when the Detection of Air Quality element testing is more good to IAQ, the rotating speed of pressure fan and exhaust blower is more low, thereby has saved the energy resource consumption of air cleaner.
2, the air cleaner of the double-mode that provides of the utility model, good purification.The double-mode air cleaner that the utility model provides, be provided with a heat exchanger in the casing, new wind passage is connected with heat exchanger respectively with return air channel, is provided with electrostatic precipitator in the new wind passage, and electrostatic precipitator is removed the effective of bacterium and dust.When electrostatic precipitator was the two-region electrostatic precipitator, the two-region electrostatic precipitator was divided into charging area and captures the district.Wherein, charging area voltage is about 8000V, it is charged mainly to carry out particle, capturing district's voltage is about 4000V, carry out the capture of electrically charged particle, its operation principle is: charging area under the effect of high voltage electric field, airborne gas molecule ionization, produce a large amount of electronics and ion, under the effect of electric field force, bump with airborne dust granules, make dust granules charged, because of the charging area pole plate shorter, only adsorb a spot of charged dust granules at charging area, most of electrically charged particle moves to and captures the district under the electric field force effect, and according to the charged character of electric charge respectively to two polar motions, reach the purpose of control of dust; And airborne bacteria particles is punctured by high voltage electric field, the cell wall rupture of being formed by protein, thus reach the purpose of sterilization.Electrostatic precipitator is the two-region electrostatic precipitator, the efficiency of dust collection height, and the voltage that captures the district is about 4000V, is far smaller than charging area, the ozone amount that produces during dedusting reduces in a large number, further improves IAQ.When being provided with the ozone purification filter screen between electrostatic precipitator and the pressure fan, strengthened the treatment effect of the ozone that produces in the electrostatic precipitation process; In the air after the electrostatic precipitator dedusting, the dust amount significantly reduces, and behind the ozone purification filter screen high efficiency particulate air is set, and further improves the filter effect of dust.The air cleaner that uses the utility model to provide, because having adopted the combined type dedusting structure, for the dust more than 0.3 micron, filter efficiency can reach 99.97%, and the accumulation of the online dust of high efficiency filter is few.
The air cleaner of the double-mode that the utility model provides, when selecting different mode of operations, all can carry out air cleaning by two-region electrostatic precipitator, ozone purification filter screen, high efficiency particulate air filter successively, when improving IAQ, air quantity in the inlet chamber is big, air cleaning engine efficiency height.
3, the air cleaner of the double-mode that provides of the utility model, the use pattern is convertible, and applicability is strong.The air cleaner of the double-mode that the utility model provides by controlling the switching between first Electric air valve and second Electric air valve, is realized the switching between fresh air purifying pattern and the room air circularly purifying pattern.The user can select different operational modes according to the situation of indoor and outdoor surroundings, and reach and both improve air purification effect, the effect that cuts down the consumption of energy again, applicability is stronger.
The double-mode air cleaner that the utility model provides uses the fresh air purifying pattern under normal conditions, and is better or outdoor when being in extreme weather when IAQ, can use room air circularly purifying pattern, purifies the air of a room.When outdoor bad weather, use room air circularly purifying pattern, can improve the people in indoor comfort level; , if adopt the fresh air purifying pattern, then have a large amount of moisture content and enter air cleaner when being the sleet sky when outdoor, influence the normal operation of air cleaner, in the case, can use room air circularly purifying pattern, purify the air of a room.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the air cleaner of the utility model double-mode;
Fig. 2 is the structural representation of electrostatic precipitator among Fig. 1;
Reference numeral: 1-casing, 2-air inlet, 3-pressure fan, 4-air outlet, the 5-indoor air inlet, 6-exhaust blower, 7-exhaust outlet, 8-heat exchanger, the 9-electrostatic precipitator, 10-ozone purification filter screen, 11-high efficiency particulate air, 12-first Electric air valve, 13-second Electric air valve, 14-Detection of Air Quality element, 15-coarse filtration filter screen, the 16-plenum chamber, the 17-charging area, 18-captures the district, the 19-minus plate, 20-corona discharge electrode, 21-positive plate.
The specific embodiment
To the technical scheme among the utility model embodiment be clearly and completely described below, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The specific embodiment:
In conjunction with Fig. 1, Fig. 2, a kind of air cleaner of double-mode comprises casing 1 and controller, is provided with new wind passage and return air channel in the casing 1, new wind passage comprises air inlet 2, pressure fan 3 and air outlet 4, and return air channel comprises indoor air inlet 5, exhaust blower 6 and exhaust outlet 7; New wind passage is used for outdoor air is introduced indoor, and return air channel is outdoor for indoor air is drained into, and new wind passage and return air channel are for the convection current that realizes between outdoor air and the room air;
Be provided with a heat exchanger 8 in the casing 1, new wind passage is connected with heat exchanger 8 respectively with return air channel, is provided with electrostatic precipitator 9 in the new wind passage; Heat exchanger 8 is used for room air and new wind are carried out exchange heat, makes from the temperature parameter of the new wind of outdoor introducing and is partial to indoor temperature, takes full advantage of heat (cold) amount of room air; Electrostatic precipitator 9 is used for removing airborne dust and bacterium, good dedusting effect;
Be connected with first Electric air valve 12 between new wind passage and the return air channel, air inlet 2 is provided with second Electric air valve 13, first Electric air valve 12 controlled by the controller of air cleaner and second Electric air valve 13 switches, and when first Electric air valve 12 was opened, controller control exhaust blower 6 stopped; When second Electric air valve 13 is opened, controller control pressure fan 3 and exhaust blower 6 operations.Controller is controlled the switching between first Electric air valve 12 and second Electric air valve 13, namely when first Electric air valve 12 is opened, second Electric air valve 13 is closed, and simultaneously, exhaust blower 6 is out of service, at this moment, in air cleaner, room air enters in the new wind passage through indoor air inlet 5, first Electric air valve 12, drains into indoor through electrostatic precipitator 9, pressure fan 3, form circulation in the room air, this pattern is room air circularly purifying pattern; When outdoor weather was extreme weather, indoor/outdoor temperature-difference was big, adopted this pattern, avoided new wind to enter, and can reduce the energy consumption that indoor air temperature is handled, and improved the comfort level of human body.When the air that needs the indoor and outdoor carries out convection current, start the fresh air purifying pattern, at this moment, second Electric air valve is opened, and first Electric air valve is closed, pressure fan and exhaust blower operation, outdoor wind enters from air inlet, and in inlet chamber after the new wind passage purified treatment, indoor air drains into outdoor through return air channel, realize the convection current of indoor-outdoor air, thereby improve the quality of room air.
The air cleaner of the double-mode that the utility model provides by controlling the switching between first Electric air valve 12 and second Electric air valve 13, is realized the switching between fresh air purifying pattern and the room air circularly purifying pattern.The user can select different operational modes according to the situation of indoor and outdoor surroundings, and reach and both improve air purification effect, the effect that cuts down the consumption of energy again, applicability is stronger.When outdoor bad weather, use room air circularly purifying pattern, can improve the people in indoor comfort level; , if adopt the fresh air purifying pattern, then have a large amount of moisture content and enter air cleaner when being the sleet sky when outdoor, influence the normal operation of air cleaner, in the case, can use room air circularly purifying pattern, purify the air of a room.In the practice process, room air circularly purifying pattern and fresh air purifying pattern realize by Artificial Control.
In the present embodiment, electrostatic precipitator is 9 two-region electrostatic precipitator, and the two-region electrostatic precipitator is divided into charging area 17 and captures district 18.Wherein, charging area is made up of corona discharge electrode 20 and minus plate 19, and the voltage of charging area 17 is about 8000V, and it is charged mainly to carry out particle; Capture district's minus plate 19 and positive plate 21 compositions, be respectively applied to absorption band cation and cationic dust particle, the voltage that captures district 18 is about 4000V, its operation principle is: charging area 17 is under the effect of high voltage electric field, airborne gas molecule ionization, produce a large amount of electronics and ion, under the effect of electric field force, bump with airborne dust granules, make dust granules charged, because of the charging area pole plate shorter, have only the small part dust granules to be adsorbed, most of charged dust granules moves to and captures the district under the electric field force effect, and according to the charged character of electric charge respectively to minus plate and positive plate motion, reach the purpose of control of dust; And airborne bacteria particles is punctured by high voltage electric field, the cell wall rupture of being formed by protein, thus reach the purpose of sterilization.Electrostatic precipitator is the two-region electrostatic precipitator, the efficiency of dust collection height, and the voltage that captures the district is about 4000V, is far smaller than charging area, the ozone amount that produces during dedusting reduces in a large number, further improves IAQ.
When being provided with ozone purification filter screen 10 between electrostatic precipitator 9 and the pressure fan 3, strengthened the treatment effect of the ozone that produces in the electrostatic precipitation process.Ozone purification filter screen 10 adopts the mode of catalytic decomposition, and catalyst is coated with the surface that is contained in the ozone purification filter screen, and ozone-containing air carries out catalytic decomposition through out-of-date to ozone, this method no consumption, and use cost is low.
In the air after the electrostatic precipitator dedusting, the dust amount significantly reduces, behind ozone purification filter screen 10, high efficiency particulate air 11 can be set, for the dust more than 0.3 micron, filter efficiency can reach 99.97%, because of two-region electrostatic precipitator good dedusting effect, the accumulation of the online dust of high efficiency filter is few.
In the present embodiment, air cleaner also comprises a frequency converter, the rotating speed of Frequency Converter Control pressure fan 3 and exhaust blower 6.
In the present embodiment, be provided with Detection of Air Quality element 14 in the return air channel, the signal that Detection of Air Quality element 14 detects transfers to frequency converter by controller, realizes by the signal controlling pressure fan of Detection of Air Quality element 14 detections and the purpose of exhaust blower rotating speed.The Detection of Air Quality element can be the dust particle sensor, also can be air mass sensor or CO 2Sensor, wherein, the dust ion transducer is for detection of the concentration of PM2.5 in the room air, and frequency converter is according to the concentration adjustment pressure fan of PM2.5 and the rotating speed of exhaust blower, the rule of regulating rotating speed is: PM2.5 concentration is more little, and the rotating speed of pressure fan and exhaust blower is more low; Air mass sensor is for detection of the concentration of pernicious gases such as formaldehyde in indoor air, benzene, and the concentration of pernicious gas is more little, and the rotating speed of pressure fan and exhaust blower is more low; In like manner, CO 2Sensor is for detection of CO in the room air 2Content, CO 2Content more low, the rotating speed of pressure fan and exhaust blower is more low.More than can comprehensively be, IAQ is more good, the rotating speed of pressure fan and exhaust blower is more low, because when IAQ is good, reduce the air exchange amount in the certain hour, also can satisfy the requirement that room air is evolved, simultaneously, reduce the rotating speed of pressure fan and exhaust blower, can reduce the energy consumption of air cleaner.
In actual moving process, during operation fresh air purifying pattern, the Detection of Air Quality element is used for the rotating speed of control pressure fan and exhaust blower; When operation room air circularly purifying pattern, because exhaust blower quits work, the Detection of Air Quality element is used for the rotating speed of control pressure fan.
In the present embodiment, the import of new wind passage and return air channel is respectively arranged with coarse filtration filter screen 15.Be used for the bigger dust of coarse filtration air particle, namely air carried out preliminary treatment, improve the efficiency of dust collection of electrostatic precipitation and high efficiency particulate air.
In the present embodiment, be provided with plenum chamber 16 between pressure fan and the air outlet, cleaned air passes can reduce dynamic pressure after pressure fan enters plenum chamber 16, increases static pressure, plays steady air flow, reduces air current flow, reduces the effect of noise.
In the present embodiment, the air quantity of pressure fan 3 makes indoor formation malleation greater than the air quantity of exhaust blower 6, stops outdoor dust in the inlet chamber, to guarantee indoor air quality from the slit of door, window etc.
In the present embodiment, heat exchanger 8 is hexahedron structure, and the flow direction of new wind and the flow direction out of plumb of return air have increased the heat exchange area of the new wind of heat exchange and return air, have improved heat exchange efficiency.
The above only is preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of doing, is equal to replacement etc. in protection domain of the present utility model, all should be included within the protection domain of the present utility model.

Claims (10)

1. the air cleaner of a double-mode, comprise casing and controller, be provided with new wind passage and return air channel in the described casing, described new wind passage comprises air inlet, pressure fan and air outlet, and described return air channel comprises indoor air inlet, exhaust blower and exhaust outlet;
Be provided with a heat exchanger in the described casing, described new wind passage is connected with described heat exchanger respectively with described return air channel, is provided with electrostatic precipitator in the described new wind passage;
It is characterized in that, be connected with first Electric air valve between described new wind passage and the described return air channel, described air inlet is provided with second Electric air valve, described first Electric air valve controlled by described controller and second Electric air valve switches, when described first Electric air valve is opened, described controller is controlled described exhaust blower and is stopped, and when described second Electric air valve was opened, described controller was controlled described pressure fan and exhaust blower operation.
2. the air cleaner of double-mode according to claim 1 is characterized in that, described electrostatic precipitator is the two-region electrostatic precipitator, and described two-region electrostatic precipitator is divided into charging area and captures the district.
3. the air cleaner of double-mode according to claim 2 is characterized in that, the voltage of described charging area is 8000V, and the voltage in described capture district is 4000V.
4. the air cleaner of double-mode according to claim 2 is characterized in that, is provided with the ozone purification filter screen in the described new wind passage, and described ozone purification filter screen is arranged between described electrostatic precipitator and the described pressure fan.
5. the air cleaner of double-mode according to claim 4 is characterized in that, also is provided with high efficiency particulate air in the described new wind passage, and described high efficiency particulate air is arranged between described ozone purification filter screen and the described pressure fan.
6. the air cleaner of double-mode according to claim 1 is characterized in that, described air cleaner also comprises a frequency converter, the rotating speed of the described pressure fan of described Frequency Converter Control and exhaust blower.
7. the air cleaner of double-mode according to claim 6 is characterized in that, is provided with the Detection of Air Quality element in the described return air channel, and the signal of described Detection of Air Quality element testing transfers to described frequency converter by described controller.
8. the air cleaner of double-mode according to claim 1 is characterized in that, the import of described new wind passage and described return air channel is respectively arranged with the coarse filtration filter screen.
9. the air cleaner of double-mode according to claim 1 is characterized in that, is provided with plenum chamber between described pressure fan and the described air outlet.
10. the air cleaner of double-mode according to claim 1 is characterized in that, the air quantity of described pressure fan is greater than the air quantity of described exhaust blower.
CN 201320023369 2013-01-16 2013-01-16 Double-operational-mode air purifier Expired - Fee Related CN203068671U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032922A (en) * 2013-01-16 2013-04-10 孙杰 Air purifier with double running modes
CN103673124A (en) * 2013-10-01 2014-03-26 门图斯控股集团公司 Air purifier with ozone purification and fine dust purification
CN105276722A (en) * 2014-06-05 2016-01-27 刘华荣 All-purpose fresh air and air conditioning system
CN105333515A (en) * 2014-08-12 2016-02-17 周宇奇 Intelligent air purifier
WO2016023481A1 (en) * 2014-08-13 2016-02-18 戴若夫 Air conditioner having smog cleansing functions
CN105890146A (en) * 2016-06-13 2016-08-24 董潇儒 Pressure changing device for processing indoor polluted air
CN106907790A (en) * 2015-12-23 2017-06-30 广东松下环境系统有限公司 Air cleaning unit
CN107202395A (en) * 2016-07-25 2017-09-26 厦门蒙发利健康科技有限公司 A kind of compact fresh air purifier
CN109489142A (en) * 2018-11-08 2019-03-19 南华大学 Oxygen-enriched air purifying fresh air unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032922A (en) * 2013-01-16 2013-04-10 孙杰 Air purifier with double running modes
CN103032922B (en) * 2013-01-16 2016-04-13 孙杰 A kind of air cleaner of double-mode
CN103673124A (en) * 2013-10-01 2014-03-26 门图斯控股集团公司 Air purifier with ozone purification and fine dust purification
CN105276722A (en) * 2014-06-05 2016-01-27 刘华荣 All-purpose fresh air and air conditioning system
CN105333515A (en) * 2014-08-12 2016-02-17 周宇奇 Intelligent air purifier
WO2016023481A1 (en) * 2014-08-13 2016-02-18 戴若夫 Air conditioner having smog cleansing functions
CN106907790A (en) * 2015-12-23 2017-06-30 广东松下环境系统有限公司 Air cleaning unit
CN106907790B (en) * 2015-12-23 2020-12-08 广东松下环境系统有限公司 Air purifying device
CN105890146A (en) * 2016-06-13 2016-08-24 董潇儒 Pressure changing device for processing indoor polluted air
CN107202395A (en) * 2016-07-25 2017-09-26 厦门蒙发利健康科技有限公司 A kind of compact fresh air purifier
CN109489142A (en) * 2018-11-08 2019-03-19 南华大学 Oxygen-enriched air purifying fresh air unit

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Granted publication date: 20130717

Termination date: 20200116