CN105135528A - Intelligent air purifying system based on Internet of Things - Google Patents
Intelligent air purifying system based on Internet of Things Download PDFInfo
- Publication number
- CN105135528A CN105135528A CN201510588503.XA CN201510588503A CN105135528A CN 105135528 A CN105135528 A CN 105135528A CN 201510588503 A CN201510588503 A CN 201510588503A CN 105135528 A CN105135528 A CN 105135528A
- Authority
- CN
- China
- Prior art keywords
- air
- air purifying
- chamber
- internet
- drying chamber
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an intelligent air purifying system based on the Internet of Things. A main control unit (MCU) is connected with an air purifier, a wireless communication module and an intelligent PM2.5 detector, and a personal mobile monitoring terminal is connected with the wireless communication module through a wireless gateway. The air purifier comprises a purifier box, an air intake fan, an exhaust fan, an air purifying chamber and an air drying chamber, the air intake fan for sucking air is installed on the outer side of the purifier box, the air purifying chamber is formed in the portion, behind the air intake fan, in the purifier box, the air drying chamber is formed behind the air purifying chamber, a purified air exhaust port is formed in the position, corresponding to the air drying chamber, of the purifier box, and the exhaust fan for exhausting indoor air is installed on the lower portion of the inner side of the purifier box; the air purifying chamber comprises a spraying system, air partition plates, a water storage chamber and a water purifying filter element, the air purifying chamber is partitioned into two or more air purifying regions through the air partition plates, ventilating openings of every two adjacent air purifying regions are distributed in a staggered mode, the water storage chamber is formed under the air purifying chamber, and filtered sewage flows back to the water storage chamber through the water purifying filter element.
Description
Technical field
The present invention relates to air purifier field, particularly, relate to a kind of based on Internet of Things intelligent air purifying system.
Background technology
Indoor environmental pollution has become one of killer having a strong impact on human health, and we have the time of more than seventy percent to place oneself indoor environment.Good IAQ ensures healthy most important factor, and underproof room air can cause uncomfortable, very healthy (such as headache, uncomfortable in chest, sleepy, allergic, eye fatigue, often flu etc.).Pregnant woman, children, old man, office staff, suffer from the people of respiratory system and cardiovascular and cerebrovascular disease, be more vulnerable to the impact of bad IAQ.The pollution of common indoor air pollutants 1. construction material.The microorganism such as plasterboard breed bacteria, virus that modem architectural ornament uses; 2. close the pollution of building and causing.Totally-enclosed building has completely cut off the circulation of natural fresh air, and room air is muddy; 3. the pollution that the dust built up in ventilating duct of central air conditioner, biology cause.Dark moist environment promotes bacterial reproduction.They may cause sneeze, eyes are uncomfortable, cough, asthma, dizzy and lassitude; Some more may trigger allergic reaction or asthma.4. house decorative material and display the pollution that causes.Decorate the materials such as wood-based plate used, binder, paint, carpet, cloth art, chemical fibre filler constantly to volatilize in room air toxic component, the formaldehyde of high concentration can cause that eyes, nose and throat are uncomfortable, bring harmful effect to human body, it is for up to 5-15; 5. the pollution that causes of household electrical appliance.Mainly electrostatic, microwave; 6. the pollution produced in people's life.The scurf that human metabolism produces, sebum, body odour, microorganism and the cosmetics used, articles for washing.Now, indoor environmental pollution ubiquity, interior decoration can cause indoor pollution.
Existing air purifier mostly uses filter screen to carry out filtration, purification to air, because PM2.5 contaminant particle is very tiny, if employing filter screen, filter screen through hole must be very tiny, so just easily cause filter net jam, do not have filter effect, often changing or clean filter screen wastes time and energy, and also causes waste.
In addition based on the development of internet, household articles is also more and more intelligent, when people go out, can go home to enjoy a kind of demand that clean air more and more becomes common life in time.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of without the need to screen pack and can control room humidity, can realize the air purifier of the elimination PM2.5 of Long-distance Control.
The present invention's adopted technical scheme that solves the problem is: a kind of based on Internet of Things intelligent air purifying system, comprise air purifier, individual mobile monitoring terminal, wireless communication module, master controller MCU and intelligent PM2.5 detector, described master controller MCU is connected with air purifier, wireless communication module and intelligent PM2.5 detector respectively, and described individual mobile monitoring terminal is connected with wireless communication module by wireless pass net; Described air purifier comprises clarifier casing, supply fan, fan of giving vent to anger, air purifying room, air drying chamber, outside described clarifier casing, top is provided with the supply fan of withdrawing air, air purifying room is provided with in clarifier casing on rear side of described supply fan, be provided with air drying chamber on rear side of described air purifying room, the clarifier casing that described air drying chamber is corresponding is provided with the outlet that purifies air; The fan of giving vent to anger that room air is discharged is installed below described clarifier box inside; Described air purifying room comprises rain system, air baffle, reservoir chamber and water purification catridge, air purifying room is isolated into more than 2 air oasis by described air baffle, adjacent two air oasis ventilating openings are dislocatedly distributed, described reservoir chamber is arranged on below air purifying room, and the sewage after filtration is back to reservoir chamber through water purification catridge.
Described supply fan air inlet end is provided with the activated charcoal strainer of outwardly convex curved surface, this curved surface can not only increase the filter area of screen pack, and smooth air can also be made to pass activated charcoal strainer, the large granular impurity in comprehensive filtered air, and contribute to reducing noise.
Further, air water filtration separator is provided with between described air purifying room and air drying chamber.
Further, the described outlet that purifies air is inclined upwardly, and the described outlet that purifies air is equipped with separation net.
Further, described air oxygen detrition indoor are provided with drier.
Further, the moisture detector be connected with drier is provided with outside described clarifier casing.
Further, the dividing plate between described air drying chamber and reservoir chamber is provided with dry air water return port.
To sum up, the invention has the beneficial effects as follows: air purifier adopts water filtration air, sewage after filtered air reclaiming clean again, recycle, eliminate air filter screen, decrease waste, experimentally prove, PM2.5 can good molten and water, so adopt water filtration purification well can filter PM2.5; This novel moisture detector humidity that purifies air to air cleaner that additionally uses regulates and controls in addition, can realize Long-distance Control.
Accompanying drawing explanation
Fig. 1 is a kind of structural principle schematic diagram based on Internet of Things intelligent air purifying system of the present invention;
Fig. 2 is the structural representation of air purifier of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 11 and 2 one kind based on Internet of Things intelligent air purifying system, comprise air purifier 15, individual mobile monitoring terminal 16, wireless communication module 17, master controller MCU18 and intelligent PM2.5 detector 19, described master controller MCU18 is connected with air purifier 15, wireless communication module 17 and intelligent PM2.5 detector 19 respectively, and described individual mobile monitoring terminal 16 is connected with wireless communication module 17 by wireless pass net; Described air purifier 15 comprises clarifier casing 1, supply fan 2, fan 3 of giving vent to anger, air purifying room 4, air drying chamber 5, it is characterized in that: outside described clarifier casing 1, top is provided with the supply fan 2 of withdrawing air, air purifying room 4 is provided with in clarifier casing 1 on rear side of described supply fan 2, be provided with air drying chamber 5 on rear side of described air purifying room 4, the clarifier casing 1 of described air drying chamber 5 correspondence is provided with the outlet 6 that purifies air; In described clarifier casing 1, side-lower is provided with the fan 3 of giving vent to anger that room air is discharged, and fan 3 of giving vent to anger is in order to outside the contaminated air discharge chamber of indoor, forms an air benign cycle system like this; Described air purifying room 4 comprises rain system 7, air baffle 8, reservoir chamber 9 and water purification catridge 10, air purifying room 4 is isolated into more than 2 air oasis by described air baffle 8, adjacent two air oasis ventilating openings are dislocatedly distributed, described reservoir chamber 9 is arranged on below air purifying room 4, and the sewage after filtration is back to reservoir chamber 9 through water purification catridge 10.Supply fan 2 air inlet end is provided with the activated charcoal strainer 20 of outwardly convex curved surface, this curved surface can not only increase the filter area of screen pack, and smooth air can also be made to pass activated charcoal strainer, the large granular impurity in comprehensive filtered air, and contribute to reducing noise.
As shown in Figure 11 and 2 one kind based on Internet of Things intelligent air purifying system, user is monitored intelligent PM2.5 detector 19 by individual mobile monitoring terminal 16, when intelligent PM2.5 detector 19 detects room air PM2.5 higher than normal value, user uses individual mobile monitoring terminal 16 to start work by wireless communication module 17 and master controller MCU18 control air purifier 15, when room air PM2.5 is lower than normal value, user uses individual mobile monitoring terminal 16 to control air purifier 15 by wireless communication module 17 and master controller MCU18 and quits work.
Outside air is drawn in air purifying room 4 by activated charcoal strainer 20 and supply fan 2 by air purifier 15, air passes through water spraying atomization in air purifying room 4, make pollutant in air by Water warfare, sewage is back in reservoir chamber 9 after being filtered by water purification catridge 10, then aspirated recycling by rain system 7 to purify air, according to service condition, regularly water purification catridge 10 is changed or cleaned; Air after purification enters in air drying chamber 5, flows into indoor after air drying chamber 5 pairs of air carry out drying.
Embodiment 2
One is as shown in Figure 2 based on Internet of Things intelligent air purifying system, on the basis of embodiment 1, air water filtration separator 12 is provided with between air purifying room 4 and air drying chamber 5, that air in order to prevent humidity excessive directly enters air drying chamber 5, air oxygen detrition power consumption can be saved, also can make air in air purifying room 4, stop the longer time simultaneously.
Embodiment 3
One is as shown in Figure 2 based on Internet of Things intelligent air purifying system, on the basis of embodiment 1, the outlet 6 that purifies air is inclined upwardly, to prevent the steam post liquefaction of dry air from flowing out clarifier, the described outlet 6 that purifies air is equipped with separation net 11, is to make the air containing humidity flow directly into indoor.
Embodiment 4
One as shown in Figure 2, based on Internet of Things intelligent air purifying system, on the basis of embodiment 1, is provided with drier 13 in air drying chamber 5, can more effective dry air.
Embodiment 5
One is as shown in Figure 2 based on Internet of Things intelligent air purifying system, on the basis of embodiment 1, the moisture detector 14 be connected with drier 13 is provided with outside clarifier casing 1, by the setting Based Intelligent Control indoor humidity of moisture detector 14, when moisture detector 14 detects indoor humidity higher than standard value, moisture detector 14 can control the heating-up temperature rising of drier 13 by controller, improve drying efficiency thus the moisture content of minimizing air, when moisture detector 14 detects indoor humidity lower than standard value, moisture detector 14 can control the heating-up temperature reduction of drier 13 by controller, improve drying efficiency thus the moisture content of raising air.
Embodiment 6
One is as shown in Figure 2 based on Internet of Things intelligent air purifying system, on the basis of embodiment 1, dividing plate between air drying chamber 5 and reservoir chamber 9 is provided with dry air water return port, and high-temperature water mist post liquefaction is directly back to reservoir chamber 9 and recycles use, improves water smoke liquefaction efficiency simultaneously.
The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; according to technical spirit of the present invention; within the spirit and principles in the present invention; the any simple amendment that above embodiment is done, equivalently replace and improve, within the protection domain all still belonging to technical solution of the present invention.
Claims (6)
1. one kind based on Internet of Things intelligent air purifying system, comprise air purifier (15), individual mobile monitoring terminal (16), wireless communication module (17), master controller MCU(18) and intelligent PM2.5 detector (19), it is characterized in that: described master controller MCU(18) be connected with air purifier (15), wireless communication module (17) and intelligent PM2.5 detector (19) respectively, described individual mobile monitoring terminal (16) is connected with wireless communication module (17) by wireless pass net;
Described air purifier (15) comprises clarifier casing (1), supply fan (2), fan of giving vent to anger (3), air purifying room (4), air drying chamber (5), described top, clarifier casing (1) outside is provided with the supply fan (2) of withdrawing air, air purifying room (4) is provided with in the clarifier casing (1) of described supply fan (2) rear side, described air purifying room (4) rear side is provided with air drying chamber (5), and the clarifier casing (1) that described air drying chamber (5) is corresponding is provided with the outlet that purifies air (6);
Described clarifier casing (1) interior side-lower is provided with the fan of giving vent to anger (3) that room air is discharged; Described air purifying room (4) comprises rain system (7), air baffle (8), reservoir chamber (9) and water purification catridge (10), air purifying room (4) is isolated into more than 2 air oasis by described air baffle (8), adjacent two air oasis ventilating openings are dislocatedly distributed, described reservoir chamber (9) is arranged on air purifying room (4) below, and the sewage after filtration is back to reservoir chamber (9) through water purification catridge (10);
Described supply fan (2) air inlet end is provided with the activated charcoal strainer (20) of outwardly convex curved surface.
2. one according to claim 1 is based on Internet of Things intelligent air purifying system, it is characterized in that: be provided with air water filtration separator (12) between described air purifying room (4) and air drying chamber (5).
3. one according to claim 1 is based on Internet of Things intelligent air purifying system, it is characterized in that: the described outlet that purifies air (6) is inclined upwardly, and the described outlet that purifies air (6) is equipped with separation net (11).
4. one according to claim 1 is based on Internet of Things intelligent air purifying system, it is characterized in that: be provided with drier (13) in described air drying chamber (5).
5. one according to claim 4 is based on Internet of Things intelligent air purifying system, it is characterized in that: be provided with the moisture detector (14) be connected with drier (13) outside described clarifier casing (1).
6. the one according to claim 1 or 4, based on Internet of Things intelligent air purifying system, is characterized in that: the dividing plate between described air drying chamber (5) and reservoir chamber (9) is provided with dry air water return port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588503.XA CN105135528A (en) | 2015-09-16 | 2015-09-16 | Intelligent air purifying system based on Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588503.XA CN105135528A (en) | 2015-09-16 | 2015-09-16 | Intelligent air purifying system based on Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105135528A true CN105135528A (en) | 2015-12-09 |
Family
ID=54720980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510588503.XA Pending CN105135528A (en) | 2015-09-16 | 2015-09-16 | Intelligent air purifying system based on Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105135528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805897A (en) * | 2016-04-29 | 2016-07-27 | 昆山初本电子科技有限公司 | Household air purification system and control method thereof |
| CN108340755A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Air purifier and vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160180A (en) * | 1996-11-27 | 1998-06-19 | Matsushita Electric Works Ltd | Air cleaner |
| CN101672507A (en) * | 2009-10-19 | 2010-03-17 | 中铁建设集团有限公司 | Ventilation and humidification device |
| CN103335374A (en) * | 2013-06-14 | 2013-10-02 | 安阳振动器有限责任公司 | Fresh air production machine |
| CN203916374U (en) * | 2014-07-04 | 2014-11-05 | 平顶山学院 | Convolution rain type air purifier |
| CN203949331U (en) * | 2014-06-23 | 2014-11-19 | 江苏红竹环保科技有限公司 | A kind of air purifier wireless monitor system based on Internet of Things Android platform |
| CN203971648U (en) * | 2014-01-23 | 2014-12-03 | 李显义 | A kind of air filter |
| WO2015109418A1 (en) * | 2014-01-24 | 2015-07-30 | 巫国谊 | Purifier having function of wireless remote control |
| CN204601911U (en) * | 2015-03-20 | 2015-09-02 | 胡伟权 | The purifier of dust particale in water filtration air |
| CN204963019U (en) * | 2015-09-16 | 2016-01-13 | 成都小蛋科技有限公司 | Based on intelligent air purifier of thing networking |
-
2015
- 2015-09-16 CN CN201510588503.XA patent/CN105135528A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160180A (en) * | 1996-11-27 | 1998-06-19 | Matsushita Electric Works Ltd | Air cleaner |
| CN101672507A (en) * | 2009-10-19 | 2010-03-17 | 中铁建设集团有限公司 | Ventilation and humidification device |
| CN103335374A (en) * | 2013-06-14 | 2013-10-02 | 安阳振动器有限责任公司 | Fresh air production machine |
| CN203971648U (en) * | 2014-01-23 | 2014-12-03 | 李显义 | A kind of air filter |
| WO2015109418A1 (en) * | 2014-01-24 | 2015-07-30 | 巫国谊 | Purifier having function of wireless remote control |
| CN203949331U (en) * | 2014-06-23 | 2014-11-19 | 江苏红竹环保科技有限公司 | A kind of air purifier wireless monitor system based on Internet of Things Android platform |
| CN203916374U (en) * | 2014-07-04 | 2014-11-05 | 平顶山学院 | Convolution rain type air purifier |
| CN204601911U (en) * | 2015-03-20 | 2015-09-02 | 胡伟权 | The purifier of dust particale in water filtration air |
| CN204963019U (en) * | 2015-09-16 | 2016-01-13 | 成都小蛋科技有限公司 | Based on intelligent air purifier of thing networking |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805897A (en) * | 2016-04-29 | 2016-07-27 | 昆山初本电子科技有限公司 | Household air purification system and control method thereof |
| CN108340755A (en) * | 2017-01-22 | 2018-07-31 | 长城汽车股份有限公司 | Air purifier and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104196428B (en) | Intelligent air purifying window | |
| CN102401410A (en) | Nano-titanium-dioxide photocatalyst wind-curtain range hood | |
| CN108426303A (en) | Air conditioner indoor unit | |
| CN105115056A (en) | Intelligent air purification and disinfection system based on Internet of Things | |
| CN205619463U (en) | Efficient air purification device | |
| CN204963019U (en) | Based on intelligent air purifier of thing networking | |
| CN204962982U (en) | Based on thing intelligent air purification of networking and degassing unit | |
| CN205461587U (en) | PM2. 5 air purification device | |
| CN108278698A (en) | Double-current method fresh air purification device | |
| CN205227670U (en) | High new fan of suspension type that purifies | |
| CN103982947A (en) | Indoor air converter | |
| CN204478299U (en) | A kind of two-way air purifier | |
| CN105135528A (en) | Intelligent air purifying system based on Internet of Things | |
| CN108278697A (en) | Double-current method fresh air purification device | |
| CN202328454U (en) | Nano titanium dioxide photocatalyst air curtain range hood | |
| CN204963018U (en) | Air purifier based on PM2. 5 is eliminated to thing networking intelligence | |
| CN204040833U (en) | Intelligent air purifying window | |
| CN204952540U (en) | Eliminate PM2. 5's air purifier | |
| CN105135529A (en) | Intelligent PM2.5 eliminating air purifying system based on Internet of Things | |
| CN108534333A (en) | Heat exchanger core for two-way in/out air tube | |
| CN108469197A (en) | Heat exchanger core for two-way in/out air tube | |
| CN205593085U (en) | Ecological clarifier of new trend intelligence | |
| CN205593052U (en) | Environment -friendly air purifier | |
| CN208042862U (en) | Heat exchanger core for two-way in/out air tube | |
| CN204693641U (en) | A kind of school instruction, working environment air cleaning facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |