CN202868904U - Fresh air fan - Google Patents

Fresh air fan Download PDF

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Publication number
CN202868904U
CN202868904U CN2012206078114U CN201220607811U CN202868904U CN 202868904 U CN202868904 U CN 202868904U CN 2012206078114 U CN2012206078114 U CN 2012206078114U CN 201220607811 U CN201220607811 U CN 201220607811U CN 202868904 U CN202868904 U CN 202868904U
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CN
China
Prior art keywords
air
outdoor
new
new wind
blower fan
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Expired - Fee Related
Application number
CN2012206078114U
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Chinese (zh)
Inventor
范建亮
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Guangdong Airspa Technology Co ltd
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Individual
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Priority to CN2012206078114U priority Critical patent/CN202868904U/en
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Publication of CN202868904U publication Critical patent/CN202868904U/en
Anticipated expiration legal-status Critical
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model relates to a fresh air fan which comprises a shell body, a fresh air fan, an air exhaust fan, a heat exchange core, a filtration and purification device and a controller, wherein a fresh air outlet, an indoor air inlet, an outdoor air inlet and an outdoor air outlet are formed in the surface of the shell body, a middle separating cavity is formed in the inner portion of the shell body, the heat exchange core and the filtration and purification device are arranged in the middle separating cavity, and the middle separating cavity is divided into a fresh air cavity, a dirty air cavity, an outdoor air inlet cavity and an outdoor air outlet cavity. The fresh air fan can purify outdoor air, and the outdoor air is sent to indoor after energy recovery. Or, indoor air is sent to indoor after being purified so that the indoor air is improved. Besides, detected information including the temperature, the humidity and the like of indoor and outdoor is fed back to the controller, and the controller compares real-time data with a predetermined data value so that people can judge whether the air is needed to be taken in, the indoor air is circulated or the fan is shut down, and therefore waste can be avoided and the fresh air fan is more energy-saving and environment-friendly.

Description

New blower fan
Technical field
The utility model relates to air cleaning facility, particularly a kind ofly can or outdoor air and room air can be purified the new blower fan of exchange with indoor air purification.
Background technology
Chinese patent literature CN01127742.4 discloses a kind of full-displacement cleaning fan on February 6th, 2002, it has the air-intake device of introducing outdoor new wind, gas channel has air cleaner, the air cleaner that is fixed on the casing in casing, also be fixed with the energy replacement device, indoor foul atmosphere is drained into outdoor air exhausting device.This kind of new blower fan only have simply from outdoor air inducing to indoor, room air discharged outdoor mode replace indoor-outdoor air, simultaneously, introduce indoor after outdoor air filtered.In view of the foregoing, this new blower fan has the following disadvantages: (1) will shorten service life of air cleaner and air cleaner and waste electric energy in case when the outdoor air quality is also poor than IAQ, outdoor air is introduced indoor; (2) new blower fan can not carry out purification filtering to room air, when too poor or humidity is higher when the outdoor air quality, and can only closing machine; (3) because indoor and outdoor has the poor and psychrometric difference of uniform temperature, cause when displaced air, having changed indoor temperature and humidity; (4) switch of new blower fan needs manual operation, makes troubles to the user.
The utility model content
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and provide a kind of simple and reasonable for structure, easy for installation, simple to operate, can automation control, easy to clean, have the outdoor indoor new blower fan that wind or indoor circulation are changed wind that changes, to overcome the deficiencies in the prior art.
The purpose of this utility model is achieved in that
A kind of new blower fan, it is characterized in that: comprise housing, new wind blower fan, exhaust fan, heat exchanger core, filtering and purifying and controller, surface of shell is provided with new wind exhaust outlet, indoor air inlet, outdoor air inlet and outdoor exhaust outlet, enclosure interior is provided with middle separate space, and heat exchanger core and filtering and purifying are arranged in the middle separate space and with middle separate space separates make new advances wind chamber, dirty wind chamber, outdoor air-inlet cavity and outdoor air draft chamber; Described new wind exhaust outlet is communicated with new wind chamber, and new wind blower fan is arranged on new wind exhaust outlet place; Surround the transition air channel between the described middle separate space outside and the inner walls, indoor air inlet is communicated with dirty wind chamber by the transition air channel, and dirty wind chamber sidewall is provided with the first window that communicates with the transition air channel; Described outdoor air inlet is communicated with outdoor air-inlet cavity, and outdoor air-inlet cavity sidewall is provided with the Second Window that is communicated with the transition air channel, and the Second Window place is provided with the interior circulation electric air-valve of control Second Window switch; Described outdoor exhaust outlet is communicated with outdoor air draft chamber, and exhaust fan is arranged on outdoor exhaust outlet place; Described outdoor air inlet place and outdoor exhaust outlet place are provided with the new wind air draft Electric air valve of control room external air inlet mouth and outdoor exhaust outlet switch; The drive part of the drive part of described new wind blower fan, exhaust fan, interior circulation electric air-valve and new wind air draft Electric air valve is electrically connected with controller respectively.
The purpose of this utility model can also adopt following technical measures to solve:
As a kind of scheme more specifically, described indoor air inlet is provided with Temperature Humidity Sensor probe, carbon dioxide sensor and air mass sensor, and Temperature Humidity Sensor probe, carbon dioxide sensor, air mass sensor are electrically connected with controller respectively.
Described outdoor air inlet and new wind exhaust outlet are provided with Temperature Humidity Sensor, and Temperature Humidity Sensor and controller are electrically connected.
Described housing is provided with the Long-distance Control port, and Long-distance Control port and controller are electrically connected.The Long-distance Control port can carry out Long-distance Control to new blower fan with after computer is connected.
The drive part of the drive part of described interior circulation electric air-valve and new wind air draft Electric air valve is motor.
Described housing comprises base, top panel and lower panel, the base left and right sides is provided with described indoor air inlet, the back is provided with described outdoor air inlet and outdoor exhaust outlet, top panel and lower panel are separately positioned on upside and the downside of base front surface, the top panel both sides are provided with described new wind exhaust outlet, central part is control panel, the control panel back side is provided with described controller, be provided with safety switch in the base, safety switch is connected on the power line, and lower panel and base are flexibly connected and are provided with the touching pin that touches safety switch.When opening lower panel, the touching pin no longer touches safety switch, makes the complete machine outage, and each parts quits work, to ensure safety.
Described heat exchanger core and filtering and purifying concentrated setting form the air conditioning box in a framework, the two ends, the left and right sides of air conditioning box are provided with engaging lug and are connected with middle separate space left and right sides sidewall.After opening lower panel, the air conditioning box can overturn out outside the middle separate space, so that clean or change heat exchanger core and filtering and purifying.
Described air conditioning box is the flat column of traverse, the trailing edge of the corresponding air conditioning box of the rear side of middle separate space is provided with rear postive stop baffle, the upper seamed edge of the corresponding air conditioning box in the top of middle separate space is provided with the upper limit baffle plate, the lower seamed edge of the corresponding air conditioning box in the bottom of middle separate space is provided with the lower limit baffle plate, and the front seamed edge of air conditioning box is provided with sealing strip.When new blower fan is loaded onto lower panel, the sealing of joining of sealing strip and lower panel inwall.
Described filtering and purifying comprises new wind filtration, purification net and dirty wind filtration, purification net, staggered air intake passage and the air exhaust passage of being provided with in the heat exchanger core, the end that the two ends of air intake passage are communicated with new wind chamber and outdoor air-inlet cavity and air intake passage is provided with described new wind filtration, purification net, and the end that the two ends of air exhaust passage are communicated with dirty wind chamber and outdoor air draft chamber and air exhaust passage is provided with described dirty wind filtration, purification net.Certainly, better embodiment should be the air inlet that the filtration, purification net is arranged on passage, to guarantee passing through again passage after air filtration purifies, in order to avoid stain passage, affects the heat transfer rate between air intake passage and the air exhaust passage.In addition, the air intake passage that is crisscross arranged in the heat exchanger core and air exhaust passage can make through temperature between the air in its each passage to exchange, thereby make air themperature and indoor temperature behind the purification filtering comparatively approaching.
The outer respective chamber/chambers external air inlet mouth of described housing and outdoor exhaust outlet are provided with two-in-one airduct, be provided with the demarcation strip that outdoor air inlet and outdoor exhaust outlet are separated in the two-in-one airduct, demarcation strip becomes two independently passages with the airduct interior separation, the demarcation strip surface is provided with perforate, be provided with described new wind air draft Electric air valve in the perforate, with the sealing of two-in-one airduct inner passage, when new wind air draft Electric air valve is parallel with demarcation strip two-in-one airduct inner passage is opened when new wind air draft Electric air valve is vertical with demarcation strip.
The beneficial effects of the utility model are as follows:
(1) this new blower fan can purify outdoor air, energy delivers to after reclaiming indoor; Perhaps, indoor with again sending back to behind the indoor air purification, thus improve room air;
(2) this new blower fan can be realized automation control, the information such as air quality, temperature, humidity that detects indoor and outdoor is fed back to controller, controller is compared real time data and preliminary setting data value, thereby judge and from outdoor air intake, the circulation of indoor wind or to shut down, avoid energy waste, more energy-conserving and environment-protective;
(3) this new blower fan volume is small and exquisite, can be installed in the positions such as wall, window, and, new wind exhaust outlet is positioned at the housing front upper, indoor air inlet is positioned at the case side basifacial, so that the distance of new wind exhaust outlet and indoor air inlet zooms out, dirty wind and new wind separate as much as possible;
(4) controller is electrically connected with the Long-distance Control port, and the Long-distance Control port can carry out Long-distance Control to new blower fan with after computer is connected;
(5) filtering and purifyings such as thick effect, efficient, activated carbon, anion are housed in new blower fan, can effectively filter to new wind the pernicious gases such as PM2.5, formaldehyde, and filtering and purifying can be dismantled, be convenient to cleaning and change.
Description of drawings
Fig. 1 is structural representation after the new blower fan assembling of the utility model.
Fig. 2 is that new blower fan is opened structural representation behind the lower panel.
Longitudinal cross-section structural representation when Fig. 3 is new fan house external air inlet state.
Longitudinal cross-section structural representation when Fig. 4 is the interior air intake state of new fan house.
Fig. 5 is new blower fan longitudinal cross-section structural representation when opening the box-like attitude of air conditioning.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
To shown in Figure 3, a kind of new blower fan comprises housing, new wind blower fan 16, exhaust fan 12, heat exchanger core 33, filtering and purifying, controller 35 in conjunction with Fig. 1.Surface of shell is provided with new wind exhaust outlet 2, indoor air inlet 5, outdoor air inlet 21 and outdoor exhaust outlet 27, enclosure interior is provided with middle separate space 11, and heat exchanger core 33 and filtering and purifying are arranged in the middle separate space 11 and with middle separate space 11 separates make new advances wind chamber 34, dirty wind chamber 17, outdoor air-inlet cavity 29 and outdoor air draft chamber 31.
Described new wind exhaust outlet 2 is communicated with new wind chamber 34, and new wind blower fan 16 is arranged on new wind exhaust outlet 2 places.
Surround transition air channel 15 between described middle separate space 11 outsides and the inner walls, indoor air inlet 5 is communicated with dirty wind chamber 17 by transition air channel 15, and dirty wind chamber 17 sidewalls are provided with the first window 18 that communicates with transition air channel 15.
Described outdoor air inlet 21 is communicated with outdoor air-inlet cavity 29, and outdoor air-inlet cavity 29 sidewalls are provided with the Second Window 36(that is communicated with transition air channel 15 as shown in Figure 4), Second Window 36 places are provided with the interior circulation electric air-valve 20 of control Second Window 36 switches.
Described outdoor exhaust outlet 27 is communicated with outdoor air draft chamber 31, and exhaust fan 12 is arranged on outdoor exhaust outlet 27 places.
Described outdoor air inlet 21 places and outdoor exhaust outlet 27 places are provided with the new wind air draft Electric air valve 25 of control room external air inlet mouth 21 and outdoor exhaust outlet 27 switches.
The drive part of the drive part of described new wind blower fan 16, exhaust fan 12, interior circulation electric air-valve 20 and new wind air draft Electric air valve 25 is electrically connected with controller 35 respectively.
Described indoor air inlet 5 is provided with Temperature Humidity Sensor probe, carbon dioxide sensor and air mass sensor 14, and Temperature Humidity Sensor probe, carbon dioxide sensor, air mass sensor 14 are electrically connected with controller 35 respectively.
Described outdoor air inlet 21 and new wind exhaust outlet 2 are provided with Temperature Humidity Sensor 28, and Temperature Humidity Sensor 28 is electrically connected with controller 35.
Described housing is provided with the Long-distance Control port, and Long-distance Control port and controller 35 are electrically connected.
The drive part of the drive part of described interior circulation electric air-valve 20 and new wind air draft Electric air valve 25 is motor.
Described housing comprises base 4, top panel 1 and lower panel 3, base 4 left and right sides are provided with described indoor air inlet 5, the back is provided with described outdoor air inlet 21 and outdoor exhaust outlet 27, top panel 1 and lower panel 3 are separately positioned on upside and the downside in base 4 fronts, top panel 1 both sides are provided with described new wind exhaust outlet 2, central part is control panel, the control panel back side is provided with described controller 35, be provided with safety switch 13 in the base 4, safety switch 13 is connected on the power line, and lower panel 3 is flexibly connected and is provided with the touching pin 30 that touches safety switch 13 with base 4.
Described heat exchanger core 33 and filtering and purifying concentrated setting form air conditioning box 8 in a framework, the two ends, the left and right sides of air conditioning box 8 are provided with engaging lug and are connected with middle separate space 11 left and right sides sidewalls.
In conjunction with Fig. 5, described air conditioning box 8 is the flat column of traverse, the trailing edge of the corresponding air conditioning box 8 of the rear side of middle separate space 11 is provided with rear postive stop baffle 39, the upper seamed edge of the corresponding air conditioning box 8 in the top of middle separate space 11 is provided with upper limit baffle plate 37, the lower seamed edge of the corresponding air conditioning box 8 in the bottom of middle separate space 11 is provided with lower limit baffle plate 38, and the front seamed edge of air conditioning box 8 is provided with sealing strip 9.
Described filtering and purifying comprises new wind filtration, purification net 32 and dirty wind filtration, purification net 19, heat exchanger core 33 interior staggered be provided with air intake passage and air exhaust passage (not shown)s, the end that the two ends of air intake passage are communicated with new wind chamber 34 and outdoor air-inlet cavity 29 and air intake passage is provided with described new wind filtration, purification net 32, and the end that the two ends of air exhaust passage are communicated with dirty wind chamber 17 and outdoor air draft chamber 31 and air exhaust passage is provided with described dirty wind filtration, purification net 19.
The outer respective chamber/chambers external air inlet mouth 21 of described housing and outdoor exhaust outlet 27 are provided with two-in-one airduct 23, be provided with the demarcation strip 22 that outdoor air inlet 21 and outdoor exhaust outlet 27 are separated in the two-in-one airduct 23, demarcation strip 22 becomes two independently passages with the airduct interior separation, demarcation strip 22 surfaces are provided with perforate, be provided with described new wind air draft Electric air valve 25 in the perforate, when new wind air draft Electric air valve 25 and demarcation strip 22 are vertical two-in-one airduct 23 inner passages are sealed, when newly wind air draft Electric air valve 25 and demarcation strip 22 are parallel two-in-one airduct 23 inner passages are opened.The new wind air draft Electric air valve 25 that two-in-one airduct 23 inwall correspondences are dug is provided with bulge loop 26.When two-in-one airduct 23 curtailment, the one section extension pipe 6 of can plugging into, the demarcation strip 22 of the two-in-one airduct 23 of extension pipe 6 interior correspondences is provided with median septum 24, and the end of extension pipe 6 is provided with rainproof fan housing 7.
Its operation principle is: start new blower fan, carbon dioxide and air quality in automatic sensing chamber of system inner air and outer air temperature and humidity, the room air; When room air carbon dioxide and air quality are higher than setting value, circulation electric air-valve 20 and new wind air draft Electric air valve 25 all were in closed condition in system opened under the new wind air draft Electric air valve 25(normality automatically), outdoor fresh air sucks from rainproof fan housing 7 tops, through two-in-one airduct 23, new wind filtration, purification net 32, heat exchanger core 33, new wind blower fan 16, enter indoor (see Fig. 3 shown in the solid arrow) from the new wind exhaust outlet 2 of top panel 1 leading flank; Indoor foul atmosphere (dirty wind) sucks from base 4 both sides indoor air inlets 5, through dirty wind filtration, purification net 19, heat exchanger core 33, exhaust fan 12, two-in-one airduct 23, rainproof fan housing 7 bottoms discharged to outdoor (see among Fig. 3 shown in the dash-dot arrows).
When outdoor air second-rate, when perhaps outdoor temperature is lower than setting value, start interior circulation electric air-valve 20, close new wind air draft Electric air valve 25, indoor foul atmosphere is from 5 suctions of base 4 both sides indoor air inlets, also successively through transition air channel 15, the Second Window 36 laggard external air inlet chambeies 29 of entering the room, finally by new wind filtration, purification net 32, heat exchanger core 33, new wind blower fan 16, enter indoor (see Fig. 4 shown in the arrow) from the new wind exhaust outlet 2 of top panel 1 leading flank.
When carbon dioxide and air quality were lower than setting value in the room air, circulation electric air-valve 20 and new wind air draft Electric air valve 25 entered standby, and then reach energy-conservation in system's autoshutdown.
In conjunction with Fig. 5, carry out heat exchanger core 33, filtering and purifying cleaning, when changing, open lower panel 3, safety switch 13 automatic disconnections, the inner deenergization of VMC; Be rotated down air conditioning box 8, just can change or clean heat exchanger core 33 or filtering and purifying, maintain easily, and safety assurance is provided.

Claims (10)

1. new blower fan, it is characterized in that: comprise housing, new wind blower fan, exhaust fan, heat exchanger core, filtering and purifying and controller, surface of shell is provided with new wind exhaust outlet, indoor air inlet, outdoor air inlet and outdoor exhaust outlet, enclosure interior is provided with middle separate space, and heat exchanger core and filtering and purifying are arranged in the middle separate space and with middle separate space separates make new advances wind chamber, dirty wind chamber, outdoor air-inlet cavity and outdoor air draft chamber;
Described new wind exhaust outlet is communicated with new wind chamber, and new wind blower fan is arranged on new wind exhaust outlet place;
Surround the transition air channel between the described middle separate space outside and the inner walls, indoor air inlet is communicated with dirty wind chamber by the transition air channel, and dirty wind chamber sidewall is provided with the first window that communicates with the transition air channel;
Described outdoor air inlet is communicated with outdoor air-inlet cavity, and outdoor air-inlet cavity sidewall is provided with the Second Window that is communicated with the transition air channel, and the Second Window place is provided with the interior circulation electric air-valve of control Second Window switch;
Described outdoor exhaust outlet is communicated with outdoor air draft chamber, and exhaust fan is arranged on outdoor exhaust outlet place;
Described outdoor air inlet place and outdoor exhaust outlet place are provided with the new wind air draft Electric air valve of control room external air inlet mouth and outdoor exhaust outlet switch;
The drive part of the drive part of described new wind blower fan, exhaust fan, interior circulation electric air-valve and new wind air draft Electric air valve is electrically connected with controller respectively.
2. new blower fan according to claim 1, it is characterized in that: described indoor air inlet is provided with Temperature Humidity Sensor probe, carbon dioxide sensor and air mass sensor, and Temperature Humidity Sensor probe, carbon dioxide sensor, air mass sensor are electrically connected with controller respectively.
3. new blower fan according to claim 1 is characterized in that: described outdoor air inlet and new wind exhaust outlet are provided with Temperature Humidity Sensor, Temperature Humidity Sensor and controller electric connection.
4. new blower fan according to claim 1, it is characterized in that: described housing is provided with the Long-distance Control port, and Long-distance Control port and controller are electrically connected.
5. new blower fan according to claim 1 is characterized in that: the drive part of the drive part of described interior circulation electric air-valve and new wind air draft Electric air valve is motor.
6. new blower fan according to claim 1, it is characterized in that: described housing comprises base, top panel and lower panel, the base left and right sides is provided with described indoor air inlet, the back is provided with described outdoor air inlet and outdoor exhaust outlet, top panel and lower panel are separately positioned on upside and the downside of base front surface, the top panel both sides are provided with described new wind exhaust outlet, central part is control panel, the control panel back side is provided with described controller, be provided with safety switch in the base, safety switch is connected on the power line, and lower panel and base are flexibly connected, and be provided with the touching pin that touches safety switch.
7. new blower fan according to claim 1, it is characterized in that: described heat exchanger core and filtering and purifying concentrated setting form the air conditioning box in a framework, and the two ends, the left and right sides of air conditioning box are provided with engaging lug and are connected with middle separate space left and right sides sidewall.
8. new blower fan according to claim 7, it is characterized in that: described air conditioning box is the flat column of traverse, the trailing edge of the corresponding air conditioning box of the rear side of middle separate space is provided with rear postive stop baffle, the upper seamed edge of the corresponding air conditioning box in the top of middle separate space is provided with the upper limit baffle plate, the lower seamed edge of the corresponding air conditioning box in the bottom of middle separate space is provided with the lower limit baffle plate, and the front seamed edge of air conditioning box is provided with sealing strip.
9. new blower fan according to claim 1, it is characterized in that: described filtering and purifying comprises new wind filtration, purification net and dirty wind filtration, purification net, staggered air intake passage and the air exhaust passage of being provided with in the heat exchanger core, the end that the two ends of air intake passage are communicated with new wind chamber and outdoor air-inlet cavity and air intake passage is provided with described new wind filtration, purification net, and the end that the two ends of air exhaust passage are communicated with dirty wind chamber and outdoor air draft chamber and air exhaust passage is provided with described dirty wind filtration, purification net.
10. new blower fan according to claim 1, it is characterized in that: the outer respective chamber/chambers external air inlet mouth of described housing and outdoor exhaust outlet are provided with two-in-one airduct, be provided with the demarcation strip that outdoor air inlet and outdoor exhaust outlet are separated in the two-in-one airduct, demarcation strip becomes two independently passages with the airduct interior separation, the demarcation strip surface is provided with perforate, be provided with described new wind air draft Electric air valve in the perforate, with the sealing of two-in-one airduct inner passage, when new wind air draft Electric air valve is parallel with demarcation strip two-in-one airduct inner passage is opened when new wind air draft Electric air valve is vertical with demarcation strip.
CN2012206078114U 2012-11-17 2012-11-17 Fresh air fan Expired - Fee Related CN202868904U (en)

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CN103353153A (en) * 2013-06-15 2013-10-16 朱幕松 Conversion type air purifier
CN103453603A (en) * 2013-08-20 2013-12-18 苏州康华净化系统工程有限公司 Air purifying system
CN103471187A (en) * 2013-09-30 2013-12-25 河南日森光电科技有限公司 Integrated fresh air fan
CN103471209A (en) * 2013-09-30 2013-12-25 河南日森光电科技有限公司 Integrated fresh air fan and control method thereof
CN103822309A (en) * 2014-03-18 2014-05-28 珠海汉朗环境科技有限公司 Switching device of air purifier and air purifier
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CN106016523A (en) * 2016-07-01 2016-10-12 广东美的制冷设备有限公司 Indoor air purifier
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CN106152361A (en) * 2016-06-15 2016-11-23 徐州工程学院 A kind of large scale business air exchanger and automatic control system thereof
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Publication number Priority date Publication date Assignee Title
CN103353153B (en) * 2013-06-15 2015-12-02 朱幕松 Conversion type air purifier
CN103353153A (en) * 2013-06-15 2013-10-16 朱幕松 Conversion type air purifier
CN103453603A (en) * 2013-08-20 2013-12-18 苏州康华净化系统工程有限公司 Air purifying system
CN103453603B (en) * 2013-08-20 2016-02-03 苏州康华净化系统工程有限公司 A kind of air cleaning system
CN103471187A (en) * 2013-09-30 2013-12-25 河南日森光电科技有限公司 Integrated fresh air fan
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