CN204555094U - Purification ventilator - Google Patents
Purification ventilator Download PDFInfo
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- CN204555094U CN204555094U CN201520232274.3U CN201520232274U CN204555094U CN 204555094 U CN204555094 U CN 204555094U CN 201520232274 U CN201520232274 U CN 201520232274U CN 204555094 U CN204555094 U CN 204555094U
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- blower fan
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Abstract
The utility model provides a kind of purification ventilator, and described purification ventilator comprises shell, and described shell is provided with old wind entrance, the outlet of old wind, new wind entrance and new wind outlet; The first blower fan between described old wind entrance and old wind export and the interconnective air filter between described new wind entrance and new wind export and the second blower fan is provided with in described shell; Described first blower fan to be used in drive chamber old wind and to enter this purification ventilator and from old wind outlet discharge chamber from described old wind entrance; Described second blower fan is used for the outer new wind of drive chamber and enters indoor from described new wind entrance through to enter this purification ventilator and export from new wind after described air filter filtration, purification.The purification ventilator that the utility model provides can not only realize the filtration, purification of air, also achieves and changes wind function, namely old for indoor wind can be derived and will send into outdoor new wind, ensureing that air is fresh, to the living environment that people are really comfortable.
Description
Technical field
The utility model relates to technical field of air purification, especially relates to a kind of purification ventilator.
Background technology
Along with social progress and economic development, local air pollution constantly presents and has the trend increased the weight of.According to the data of Chinese interior decoration association environment measuring center investigation, the death toll that China is caused by room air pollution has every year reached 11.1 ten thousand people, and average every day, approximately dead 304 people, were equivalent to the number of national every day because of traffic death.Therefore, the adverse effect that causes of air pollution is very serious.But for a long time, the general public does not have clear concept to room air pollution, this also makes this pollution hide in various building as " stealthy killer " always.The pollution of air directly can affect our work and life, so improve our living environment, improves air quality, very necessary and urgent.
Present society there is many air purifiers.But the main function of existing air purifier is the air in purification enclosed environment, function is too single can not give people really comfortable living environment.After room air uses for a long time, even if eliminate the pollutants such as the PM2.5 in air, can not ensure there are enough oxygen supplies in air, the personnel of carbon dioxide severe overweight (especially the environment of kindergarten of middle and primary schools etc., densely populated place) indoor feel very dull, comfort level is poor, is unfavorable for the physical and mental health of people.
Therefore, how providing a kind of provides fresh air to become those skilled in the art's technical issues that need to address for indoor environment.
Utility model content
The purpose of this utility model is to provide a kind of purification ventilator, to solve the technical problem that air purifier of the prior art cannot provide fresh air.
The purification ventilator that the utility model provides, comprises shell, and described shell is provided with old wind entrance, the outlet of old wind, new wind entrance and new wind outlet;
The first blower fan between described old wind entrance and old wind export and the interconnective air filter between described new wind entrance and new wind export and the second blower fan is provided with in described shell;
Described first blower fan to be used in drive chamber old wind and to enter this purification ventilator and from old wind outlet discharge chamber from described old wind entrance;
Described second blower fan is used for the outer new wind of drive chamber and enters indoor from described new wind entrance through to enter this purification ventilator and export from new wind after described air filter filtration, purification.
Preferably, described air filter comprises multiple filter cores of arranged stacked.
Preferably, described air filter comprises first effect filter core from described new wind entrance to described second blower fan, HEPA filter core, active carbon filter core and the photocatalyst filter core arranged successively from.
Preferably, ultraviolet lamp is provided with between described air filter and described second blower fan.
Preferably, be also provided with heat exchanger in described shell, described heat exchanger is connected with the air inlet of described first blower fan and the air outlet of described second blower fan respectively.
Preferably, described heat exchanger is shell-and-tube exchanger, and described shell-and-tube exchanger comprises housing and is positioned at the tube bank of described housing, the two ends of described tube bank respectively with gas outlet and the described new wind outlet of described second blower fan; Gap between described tube bank with described housing is communicated with the air inlet of described old wind entrance and described first blower fan.
Preferably, be provided with the microcomputer time-controlled switch be electrically connected with described first blower fan and the second blower fan in described shell, described microcomputer time-controlled switch sets the operation period of described purification ventilator and the wind speed of described first blower fan and the second blower fan for programming.
Preferably, described shell is cuboid, and described new wind entrance and the outlet of old wind are all positioned on the first side wall of described shell.
Preferably, described new wind outlet is positioned on the second sidewall adjacent with described the first side wall, and described old wind entrance is positioned on the 3rd sidewall relative with described the first side wall.
Preferably, be provided with humidifying unit near described new wind exit in described shell, described humidifying unit is for increasing the moisture of new wind.
The purification ventilator that the utility model provides comprises the air filter for impurity such as dust granules in filtered air, to enter this purification ventilator and from the first blower fan old wind outlet discharge chamber from described old wind entrance for wind old in drive chamber, for wind new outside drive chamber from described new wind entrance through to enter this purification ventilator and enter indoor and the second blower fan from new wind outlet after described air filter filtration, purification, the filtration, purification of air can not only be realized, remove the pollutants such as the PM2.5 in air, also achieve and change wind function, namely old for indoor wind can be derived and outdoor new wind will be sent into, in the new wind sent into, oxygen is sufficient, guarantee air is fresh, to the living environment that people are really comfortable.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model detailed description of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation (after removing front shroud) of the purification ventilator that Fig. 1 provides for the utility model embodiment;
The schematic diagram of the purification ventilator that Fig. 2 provides for the utility model embodiment, the arrow in figure represents the flow direction of air;
Fig. 3 is the structural representation of the front shroud of the utility model embodiment;
Fig. 4 is the installment state schematic diagram of the purification ventilator of the utility model embodiment.
Reference numeral:
1-shell; The old wind entrance of 11-; The old wind outlet of 12-;
The new wind entrance of 13-; The new wind outlet of 14-; 15-control panel;
2-first blower fan; 3-second blower fan; 4-just imitates filter core;
5-HEPA filter core; 6-active carbon filter core; 7-photocatalyst filter core;
8-ultraviolet lamp; 9-shell-and-tube exchanger; 91-restrains;
10-front shroud; 16-sealing strip; A-first metope;
B-second metope; C-ventilating duct.
Detailed description of the invention
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.Wherein, term " primary importance " and " second place " are two different positions.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The structural representation of the purification ventilator that Fig. 1 provides for the utility model embodiment; The schematic diagram of the purification ventilator that Fig. 2 provides for the utility model embodiment, the arrow in Fig. 2 represents the flow direction of air; As depicted in figs. 1 and 2, the purification ventilator that the utility model provides comprises shell 1, and described shell 1 is provided with old wind entrance 11, old wind outlet 12, new wind entrance 13 and new wind outlet 14; Be provided with in described shell 1 and export the first blower fan 2 between 12 at described old wind entrance 11 and old wind and export interconnective air filter between 14 and the second blower fan 3 at described new wind entrance 13 and new wind; Described first blower fan 2 to enter this purification ventilator from described old wind entrance 11 for wind old in drive chamber and exports 12 discharge chambers from old wind; Described second blower fan 3 for wind new outside drive chamber from described new wind entrance 13 through to enter this purification ventilator and enter indoor from new wind outlet 14 after described air filter filtration, purification.
As shown in Figure 2, the first blower fan 2 provides the power of indoor old wind flow.Particularly, the old wind in new indoor enters in described purification ventilator by the old wind entrance 11 on shell 1, in this purification ventilator, indoor old wind is inhaled in the first blower fan 2 by the air inlet of the first blower fan 2, afterwards by outside the gas outlet discharge chamber of the first blower fan 2.In the embodiment shown in figure 2, the gas outlet of the first blower fan 2 is stretched out outside shell 1, so that new wind flows rapidly into indoor.Certainly, the gas outlet of the first blower fan 2 also can be positioned at shell 1.
In like manner, the second blower fan 3 provides the power of outdoor new wind flow.Particularly, outdoor new wind enters this purification ventilator by the new wind entrance 13 on shell 1, in this purification ventilator, outdoor new wind becomes clean air after the impurity such as air filter filter out dust particle, to be inhaled in the second blower fan 3 afterwards and to enter indoor by the gas outlet of the second blower fan 3 by the air inlet of the second blower fan 3.
The purification ventilator that the utility model provides comprises the air filter for impurity such as dust granules in filtered air, enter from described old wind entrance 11 the first blower fan 2 exported this purification ventilator and from old wind 12 discharge chambers for wind old in drive chamber, for wind new outside drive chamber from described new wind entrance 13 through to enter this purification ventilator and enter indoor and the second blower fan 3 from new wind outlet 14 after described air filter filtration, purification, the filtration, purification of air can not only be realized, remove the pollutants such as the PM2.5 in air, also achieve and change wind function, namely old for indoor wind can be derived and outdoor new wind will be sent into, in the new wind sent into, oxygen is sufficient, guarantee air is fresh, to the living environment that people are really comfortable.
Particularly, described air filter comprises multiple filter cores of arranged stacked.Filter core makes the state of air required for cleaning to production, life polluted, and namely makes the cleanliness factor that air reaches certain.The filter core of different pore size size is selected according to the size of the particle in the new wind in outdoor.Conveniently more renew cartridge, shell 1 is removably connected with filter core cover plate, and described filter core cover plate is connected to one end of multiple filter core.
Further, as shown in Figure 1, described air filter comprise arrange successively from first effect filter core 4 from described new wind entrance 13 to described second blower fan 3, HEPA (HighEfficiency Particle Air) filter core, active carbon filter core 6 and photocatalyst filter core 7.First effect filter core 4 is arranged near new wind entrance 13, and photocatalyst filter core 7 is arranged near the second blower fan 3.First effect filter core 4 is for filtering big dust particle, and HEPA filter core 5 is for the above particle of filtering nanoscale, and active carbon filter core 6 adopts absorbent charcoal material to make, for organics removal and foul odour.Photocatalyst filter core 7 adopts photocatalyst material to make, the general name with the photosemiconductor material of photo-catalysis function of photocatalyst to be a kind of with Nano titanium dioxide be representative, it coats substrate surface, under the effect of light, produce strong catalytic degradation function, toxic and harmful in air of effectively degrading; Effectively can kill various bacteria, and the toxin that bacterium or fungi can be discharged decomposes and harmless treatment; The function such as simultaneously also possess deodorizing, mildew-resistant, anti-soil, purify air.Sterilization, deodorizing, antifouling, purification.In present embodiment, just effect filter core 4, HEPA filter core 5, active carbon filter core 6 and photocatalyst filter core 7 stacks gradually layout, can filter the various particle in removal outdoor air and harmful substance layer by layer, for ozone is brought in our indoor.
Wherein, activated carbon cartridge adopts active carbon particle to add binding agent sintering of heating to form.Filter core innermost layer is polypropylene backbone, in order to strengthen the compressive resistance of filter core.Skeleton is surrounded by two layers of polypropylene ultrafine fiber felt, liquid can be stopped and take by carbon core the particle being greater than 10 microns out of.Carbon core skin is surrounded by two layers of polypropylene ultrafine fiber felt, can stop in liquid the particle being greater than 10-20 micron, filter core is had and filters and purification dual-use function.Outermost layer is white plastic net, makes filter core have complete appearance and clean and tidy outward appearance.
In addition, ultraviolet lamp 8 is also provided with between described air filter and described second blower fan 3.Between the air inlet that ultraviolet lamp 8 can be arranged on the second blower fan 3 and photocatalyst filter core 7.Ultraviolet lamp 8 is that one can launch ultraviolet device, for carrying out sterilizing to the air after filtration, the cleanliness factors entering indoor air being further enhanced, ensure that the health of indoor occupant by new wind outlet 14.
In addition, the winter that new air temperature is lower in outdoor or the outdoor summer that newly air temperature is higher, in order to heat entering indoor new wind or cool, the present embodiment provides a kind of purification ventilator, also be provided with heat exchanger in the shell 1 of this purification ventilator, described heat exchanger is connected with the air inlet of described first blower fan 2 and the air outlet of described second blower fan 3 respectively.Purification ventilator in the present embodiment possesses purification simultaneously, changes the function of wind and adjustment temperature, and an equipment realizes three kinds of functions simultaneously, is convenient to people and uses.
Particularly, time in the winter time, indoor old air temperature is higher than the temperature of the new wind in outdoor, indoor old wind and the new wind in outdoor carry out heat exchange in a heat exchanger, and the heat that indoor old wind carries passes to outdoor new wind, and indoor old air temperature reduces, outdoor new air temperature raises, this sample loading mode takes full advantage of the heat that indoor old wind carries, and greatly save and heat the consumed energy to the new wind in outdoor, energy-saving efficiency can reach 60%.
Otherwise, when summer, indoor old air temperature is lower than the temperature of the new wind in outdoor, indoor old wind and the new wind in outdoor carry out heat exchange in a heat exchanger, and indoor old wind cools the new wind in outdoor, and indoor old air temperature raises, outdoor new air temperature reduces, this sample loading mode takes full advantage of the low temperature of indoor old wind, and greatly save and to lower the temperature the consumed energy to the new wind in outdoor, energy-saving efficiency can reach 60%.
Wherein, described heat exchanger can be shell-and-tube exchanger 9, as shown in Figure 2, described shell-and-tube exchanger 9 comprises housing and is positioned at the tube bank 91 of described housing, and the two ends of described tube bank 91 export 14 with the gas outlet of described second blower fan 3 and described new wind respectively and are communicated with; Described tube bank 91 is communicated with the air inlet of described old wind entrance 11 and described first blower fan 2 with the gap between described housing.That is, outdoor new wind flows in tube bank 91 (in as Fig. 2 arrow shown in) upwards, the Clearance Flow of indoor old wind between tube bank 91 and housing (in as Fig. 2 arrow shown in) to the right.
In addition, the microcomputer time-controlled switch be electrically connected with described first blower fan 2 and the second blower fan 3 is provided with in described shell 1, the wind speed of the operation period that described microcomputer time-controlled switch sets described purification ventilator for programming and described first blower fan 2 and the second blower fan 3.A sidewall of this purification ventilator has Yishanmen, can open with key, described microcomputer time-controlled switch is installed in door.
The operation period can set 16 groups at most, and within such as every two hours, be one and run the period, wind speed has weak wind, apoplexy, three kinds, high wind, and user can carry out the setting of wind speed and time according to demand to microcomputer time-controlled switch.Such as, certain user needs weekly 1 purification ventilator duties as follows: 6:00-7:00 high wind runs, and 7:00-8:00 apoplexy is run, and the weak wind of 8:00-8:45 runs, 8:45:--8:55 apoplexy is run, and the weak wind of 8:55-9:40 runs.Again such as, certain user needs every day 6:00 to open apoplexy, and 7:00 stops apoplexy.
In addition, the outer wall of described purification ventilator is provided with control panel 15, to operate this purification ventilator.Control panel 15 is provided with intelligent mode, the display of intelligent mode wind speed, artificial mode, artificial wind speed instruction, mode conversion key, remote controller induction mouth, timing display, artificial mode stop key etc.Control panel 15 can show air force, the information such as timing.
Described purification ventilator also comprises remote controller, and this remote controller is used for the duty of this purification ventilator of remote pilot, and remote controller is provided with wind speed key, timing key, mode key, stop key etc.Predetermined running time can set with remote controller timing key by user.
Conveniently be arranged on indoor wall by this purification ventilator, preferably, described shell 1 is cuboid, and described new wind entrance 13 and old wind outlet 12 are all positioned on the first side wall of described shell 1.Because described new wind entrance 13 all needs to be communicated with outdoor with old wind outlet 12, therefore, only the first side wall of shell 1 need be connected with indoor wall, make new wind entrance 13 and old wind outlet 12 can stretch out indoor wall outward, install simple and convenient.
More preferably, as shown in Figure 2, described new wind outlet 14 is positioned on the second sidewall adjacent with described the first side wall, and described old wind entrance 11 is positioned on the 3rd sidewall relative with described the first side wall.That is, old wind entrance 11 and old wind export 12 and arrange in 90 degree, new wind entrance 13 and new wind export 14 and also arrange in 90 degree, this mode can increase the flow path of the new wind of indoor old wind and outdoor in this purification ventilator, increase the time that the filtration time of outdoor new wind in air filter and the new wind of indoor old wind and outdoor carry out heat exchange, substantially increase air purification effect.
In order to increase the humidity entering indoor new wind, preventing room air too dry, exporting 14 places near described new wind in described shell 1 and being provided with humidifying unit.Purification ventilator in the present embodiment possesses purification simultaneously, changes the function of wind and adjustment humidity, and an equipment realizes three kinds of functions simultaneously, is convenient to people and uses.
For the ease of being arranged on wall by this purification ventilator, the purification ventilator in described the utility model also comprises base plate and front shroud 10.As shown in Figure 3, control panel 15 can be arranged on described front shroud 10.Described base plate is provided with link, and described link is provided with hook.This purification ventilator is equipped with fastening support for wall surface, and fastening support for wall surface is provided with draw-in groove, and described hook can snap in described draw-in groove.
In addition, the purification ventilator in this enforcement also comprises sealing strip 16, and sealing strip 16 can adopt high-air-tightness adhesive tape, and sealing strip 16, for isolated noise, prevents gas leakage.Shell 1 surrounding inwall is provided with sealing strip 16, also can arrange sealing strip 16 between air filter and the first blower fan 2.
Fig. 4 is the installment state schematic diagram of the purification ventilator of the utility model embodiment, describes the installation process of this purification ventilator below in conjunction with Fig. 4 in detail:
The first step, choose the installation site of this purification ventilator in indoor, such as the first metope A is installation site, and the first metope A determines the mounting hole site of link and fastening support for wall surface, notice that purification ventilator must keep level, Kong Weiying avoids electric wire or foreign matter and wall really up to the mark;
Second step, punching, aperture can be 110mm;
3rd step, installs fastening support for wall surface, is positioned at the link on purification ventilator base plate, lift purification ventilator, the hook above link is hung in the draw-in groove of fastening support for wall surface, the light telephone-moving body in left and right, to determine to hang surely, then tighten link, reinforce fuselage.
4th step, according to purification ventilator old wind outlet 12 and new wind entrance 13 and the distance of porthole and the length of wall thickness determination ventilating duct C, cut the ventilating duct C two of equal length, two ventilating duct C are each passed through the second metope B, finally two ventilating duct C are exported respectively 12 with the old wind on shell 1 and fix with new wind entrance 13.
During use, need to close the doors and windows, to provide air purification effect.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. purify a ventilator, it is characterized in that, described purification ventilator comprises shell, and described shell is provided with old wind entrance, the outlet of old wind, new wind entrance and new wind outlet;
The first blower fan between described old wind entrance and old wind export and the interconnective air filter between described new wind entrance and new wind export and the second blower fan is provided with in described shell;
Described first blower fan to be used in drive chamber old wind and to enter this purification ventilator and from old wind outlet discharge chamber from described old wind entrance;
Described second blower fan is used for the outer new wind of drive chamber and enters indoor from described new wind entrance through to enter this purification ventilator and export from new wind after described air filter filtration, purification.
2. purification ventilator according to claim 1, is characterized in that, described air filter comprises multiple filter cores of arranged stacked.
3. purification ventilator according to claim 2, is characterized in that, described air filter comprises first effect filter core from described new wind entrance to described second blower fan, HEPA filter core, active carbon filter core and the photocatalyst filter core arranged successively from.
4. purification ventilator according to claim 1, is characterized in that, is provided with ultraviolet lamp between described air filter and described second blower fan.
5. purification ventilator according to claim 1, is characterized in that, is also provided with heat exchanger in described shell, and described heat exchanger is connected with the air inlet of described first blower fan and the air outlet of described second blower fan respectively.
6. purification ventilator according to claim 5, it is characterized in that, described heat exchanger is shell-and-tube exchanger, described shell-and-tube exchanger comprises housing and is positioned at the tube bank of described housing, the two ends of described tube bank respectively with gas outlet and the described new wind outlet of described second blower fan; Gap between described tube bank with described housing is communicated with the air inlet of described old wind entrance and described first blower fan.
7. purification ventilator according to claim 1, it is characterized in that, be provided with the microcomputer time-controlled switch be electrically connected with described first blower fan and the second blower fan in described shell, described microcomputer time-controlled switch sets the operation period of described purification ventilator and the wind speed of described first blower fan and the second blower fan for programming.
8. purification ventilator according to claim 1, is characterized in that, described shell is cuboid, and described new wind entrance and the outlet of old wind are all positioned on the first side wall of described shell.
9. purification ventilator according to claim 8, is characterized in that, described new wind outlet is positioned on the second sidewall adjacent with described the first side wall, and described old wind entrance is positioned on the 3rd sidewall relative with described the first side wall.
10. purification ventilator according to claim 1, is characterized in that, be provided with humidifying unit near described new wind exit in described shell, described humidifying unit is for increasing the moisture of new wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232274.3U CN204555094U (en) | 2015-04-17 | 2015-04-17 | Purification ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232274.3U CN204555094U (en) | 2015-04-17 | 2015-04-17 | Purification ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204555094U true CN204555094U (en) | 2015-08-12 |
Family
ID=53830197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520232274.3U Expired - Fee Related CN204555094U (en) | 2015-04-17 | 2015-04-17 | Purification ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204555094U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764108A (en) * | 2015-04-17 | 2015-07-08 | 北京三盟矿用设备厂 | Purification air exchanger |
| CN106152304A (en) * | 2016-06-21 | 2016-11-23 | 苏州格兰斯柯光电科技有限公司 | A kind of air purifier |
-
2015
- 2015-04-17 CN CN201520232274.3U patent/CN204555094U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764108A (en) * | 2015-04-17 | 2015-07-08 | 北京三盟矿用设备厂 | Purification air exchanger |
| CN104764108B (en) * | 2015-04-17 | 2018-06-19 | 北京三盟矿用设备厂 | Purify ventilator |
| CN106152304A (en) * | 2016-06-21 | 2016-11-23 | 苏州格兰斯柯光电科技有限公司 | A kind of air purifier |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190417 |