CN105664649A - Ceiling machine - Google Patents

Ceiling machine Download PDF

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Publication number
CN105664649A
CN105664649A CN201610189152.XA CN201610189152A CN105664649A CN 105664649 A CN105664649 A CN 105664649A CN 201610189152 A CN201610189152 A CN 201610189152A CN 105664649 A CN105664649 A CN 105664649A
Authority
CN
China
Prior art keywords
layer
ceiling machine
melt
frame
ring
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
Application number
CN201610189152.XA
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Chinese (zh)
Inventor
陈映飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shenyang Environment Protection Technology Co Ltd
Original Assignee
Jiangsu Shenyang Environment Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Shenyang Environment Protection Technology Co Ltd filed Critical Jiangsu Shenyang Environment Protection Technology Co Ltd
Priority to CN201610189152.XA priority Critical patent/CN105664649A/en
Publication of CN105664649A publication Critical patent/CN105664649A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)

Abstract

The invention discloses a ceiling machine which comprises a shell, a filter element and a sealing ring, wherein the filter element comprises a frame and a filtering unit arranged in the frame; a sealing rubber ring is glued at a joint of the filtering unit and the frame; the filtering unit comprises a filtering material, a plain cloth layer and a supporting pair; the plain cloth layer is glued on the filtering material; the supporting pair is glued on the plain cloth layer; the filtering material comprises an absorbing layer, polyester skeleton layers, melt-blowing non-woven fabric layers after electrostatic treatment and melt-blowing filtering cotton layers after electrostatic treatment; two polyester skeleton layers are respectively located on the two sides of the absorbing layer; the melt-blowing non-woven fabric layers are arranged on the polyester skeleton layers; the melt-blowing filtering cotton layers are arranged on the melt-blowing non-woven fabric layers; the sealing ring is glued on the frame; and a groove corresponding to the sealing ring is arranged at an air inlet of the shell. The ceiling machine can be used for effectively filtering and absorbing dust grains, such as PM2.5, and harmful gases, such as formaldehyde, is free from occupying more space and has wide application prospects.

Description

Ceiling machine
Technical field
The present invention relates to air purification field, particularly, it relates to a kind of ceiling machine.
Background technology
Along with people are to the lasting concern of health, more and more people notices working environment problem, head ought be wherein office air problem, due to working environment limited space, conventional purification of air device is not also suitable for office, and, too much electrical equipment, also increasing office cost, these Dou Shi enterprises are reluctant to see. Whether can utilize the existing filtration to obnoxious flavoures such as dust thing and formaldehyde such as office region PM2.5 of ceiling machine return air cause for gossip and absorption, be a considerable problem.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of ceiling machine, by the Improvement and perfection to return air mouth place, effectively achieve filtration and the absorption of the obnoxious flavoures such as dust thing and formaldehyde such as PM2.5, while ensureing good Air quality, reduce purchase and the use of extra electrical equipment, and do not take redundant space, be with a wide range of applications.
For solving the problem, the technical solution adopted in the present invention is as follows:
A kind of ceiling machine, comprise housing and filter core, also comprise sealing-ring, the filtering unit that described filter core comprises frame and is arranged in frame, described filtering unit and frame junction are fitted with sealed rubber ring, described filtering unit comprises filtering material, the plain cloth layer that is fitted on filtering material and the support that is fitted on plain cloth layer secondary; Described filtering material comprises the melt spraying non-woven fabrics layer after adsorption layer, polyester backbone layer, Electrostatic Treatment and the cotton layer of the melt blown filter after Electrostatic Treatment, described polyester backbone layer is two layers, lay respectively at adsorption layer both sides, described melt spraying non-woven fabrics layer is arranged on polyester backbone layer, and the cotton layer of described melt blown filter is arranged on melt spraying non-woven fabrics layer; Described sealing-ring is fitted on frame, and described housing air inlet is provided with the groove corresponding with sealing-ring.
Preferably, described filtering unit is the continuous replicating structure of undaform, and adjacent peaks and the spacing h of trough in the continuous replicating structure of undaform are 1.0-2.0cm, and between adjacent trough, distance d is 0.5-1.2cm.
Preferably, described sealing-ring is two, is fitted in frame both sides respectively.
Preferably, the described groove degree of depth is less than sealing-ring thickness, and recess width equals sealing-ring width.
Preferably, described plain cloth layer material is that Plastic Flat is weaved cotton cloth, and its hole size is 20-50 order.
Preferably, described filtering material also comprises anionic additive layer, and described anionic additive layer is arranged between melt spraying non-woven fabrics layer and the cotton layer of melt blown filter; Described anionic additive layer is made up of the component of following mass percent: H2O48.5%, SiO221.5%, Al2O319.5%, B2O36.5%, TiO22.0%, Fe2O31.2%, FeO0.4%, MgO0.2%, Li2O0.1% and MnO0.1%, described anionic additive layer thickness is 0.03-0.08mm.
Preferably, in described adsorption layer, sorbent material is any one or several in gac, aluminum oxide, diatomite, and described adsorbent layer thickness is 1.0-1.5mm.
Preferably, described melt spraying non-woven fabrics layer material is polypropylene or polyethylene terephthalate, and described melt spraying non-woven fabrics layer is two layers, and every layer thickness is 0.20-0.25mm.
Preferably, the cotton layer material of described melt blown filter is polypropylene or polyethylene terephthalate, and the cotton layer of described melt blown filter is two layers, and every layer thickness is 0.25-0.45mm.
Preferably, described polyester backbone layer material is polyethylene terephthalate or polybutylene terephthalate, and every layer thickness is 0.20-0.30mm.
Compared to existing technology, the useful effect of the present invention is:
The present invention is by the Improvement and perfection to return air mouth place, can effectively realize filtration and the absorption of the obnoxious flavoures such as dust thing and formaldehyde such as PM2.5, while ensureing good Air quality, reduce purchase and the use of extra electrical equipment, and do not take redundant space, it is with a wide range of applications; Sealed rubber ring can ensure the resistance to air loss that filtering unit and frame combine, and ensures the validity filtered; The continuous replicating structure of waviness type provides bigger contact area, it is to increase the efficiency filtered; The use of plain cloth layer can realize absorption and the filtration of macrobead pollutent, supports the secondary stability that can strengthen filtering material structure, ensures its work-ing life; Polyester backbone layer has good elasticity, and the material that inside can be risen adsorption plays good support and provide protection, it is to increase the intensity of filtering material, thus extends its work-ing life; Melt spraying non-woven fabrics and melt blown filter are cotton through plasma treatment and the process of constant voltage corona charging, dust in air particle can be caught, when existence of electrostatic field ensures the charged corpuscle in air-flow by material fiber hole in it, namely caught easily, thus substantially increased solid pollutant filtration efficiency; Anionic additive layer and adsorption layer can realize the filtration of the hazardous air pollutants such as TVOC, formaldehyde, it is achieved that to the high purification efficiency of purification of air; Sealing-ring can ensure filter core and effective laminating at ceiling machine place, ensures the validity filtered.
Accompanying drawing explanation
Fig. 1 is the structural representation of ceiling machine in the present invention;
Fig. 2 is the structural representation of middle shell of the present invention;
Fig. 3 is the structural representation of filter core in the present invention;
Fig. 4 is filter core A-A sectional view in Fig. 3;
Fig. 5 is D place partial enlargement figure in Fig. 4;
Fig. 6 is filtering material structural representation in the present invention;
Fig. 7 is filtering material structural representation in embodiment 1;
Wherein, the spacing of 1 be housing, 101 be return air mouth, 102 be groove, 103 be screen, 2 be filter core, 21 be frame, 22 be filtering material, 221 be adsorption layer, 222 be polyester backbone layer, 223 be melt spraying non-woven fabrics layer, 224 be the cotton layer, 225 of melt blown filter be anionic additive layer, 23 be plain cloth layer, 24 be support pair, 25 to be sealed rubber ring, 3 be sealing-ring, d to be distance between adjacent trough, h be adjacent peaks and trough.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in figures 1 to 6, in the present invention, ceiling machine comprises housing 1, filter core 2 and sealing-ring 3, the filtering unit that filter core 2 comprises frame 21 and is arranged in frame 21, described filtering unit and frame 21 junction are fitted with sealed rubber ring 25, and described filtering unit comprises filtering material 22, the plain cloth layer 23 that is fitted on filtering material 22 and the support pair 24 being fitted on plain cloth layer 23; Filtering material 22 comprises the melt spraying non-woven fabrics layer 223 after adsorption layer 221, polyester backbone layer 222, Electrostatic Treatment and the cotton layer 224 of the melt blown filter after Electrostatic Treatment, polyester backbone layer 222 is two layers, lay respectively at adsorption layer 221 both sides, melt spraying non-woven fabrics layer 223 is arranged on polyester backbone layer 222, and the cotton layer 224 of melt blown filter is arranged on melt spraying non-woven fabrics layer 223; Sealing-ring 3 is fitted on frame 21, and housing 1 blast inlet 101 place is provided with the groove 102 corresponding with sealing-ring 3.
In preferred version, sealing-ring 3 is two, laminating frame 21 both sides respectively, frame 21 both sides sealing circle 3 is while be bonded in groove 102 by seal gum, the other side, under the extruding of screen 103, ensures effective laminating of filter core 2 and housing 1, ensures the validity filtered, sealing-ring near screen 103 side can also substitute with elasticity part, it is possible to realizes identical sealing effect. Filtering unit 22 is the continuous replicating structure of undaform, and adjacent peaks and the spacing h of trough in the continuous replicating structure of undaform are 1.0-2.0cm, and between adjacent trough, distance d is 0.5-1.2cm. The continuous replicating structure of undaform provides bigger contact area, it is to increase the efficiency filtered. Sealed rubber ring 25 can ensure the resistance to air loss that filtering unit and frame combine, and ensures the validity filtered. Plain cloth layer 23 material is that Plastic Flat is weaved cotton cloth, and its hole size is 20-50 order, and the use of plain cloth layer 3 can realize absorption and the filtration of macrobead pollutent, supports the stability that secondary 24 can strengthen filtering material 22 structure, ensures its work-ing life.
Embodiment 1
Ceiling machine comprises housing 1, filter core 2 and sealing-ring 3, the filtering unit that filter core 2 comprises frame 21 and is arranged in frame 21, described filtering unit and frame 21 junction are fitted with sealed rubber ring 25, and described filtering unit comprises filtering material 22, the plain cloth layer 23 that is fitted on filtering material 22 and the support pair 24 being fitted on plain cloth layer 23; Filtering material 22 comprises the melt spraying non-woven fabrics layer 223 after adsorption layer 221, polyester backbone layer 222, Electrostatic Treatment, the cotton layer 224 of melt blown filter after Electrostatic Treatment and anionic additive layer 225, polyester backbone layer 222 is two layers, lay respectively at adsorption layer 221 both sides, melt spraying non-woven fabrics layer 223 is arranged on polyester backbone layer 222, the cotton layer 224 of melt blown filter is arranged on melt spraying non-woven fabrics layer 223, and anionic additive layer 225 is arranged between melt spraying non-woven fabrics layer 223 and the cotton layer 224 of melt blown filter; Sealing-ring 3 is fitted on frame 21, and housing 1 blast inlet 101 place is provided with the groove 102 corresponding with sealing-ring 3.
Wherein, sealing-ring 3 is two, is fitted in frame 21 both sides respectively.
Groove 102 degree of depth is less than sealing-ring 3 thickness, and groove 102 width equals sealing-ring 3 width.
Filtering unit 22 is the continuous replicating structure of undaform, and adjacent peaks and the spacing h of trough in the continuous replicating structure of undaform are 1.5cm, and between adjacent trough, distance d is 1.0cm.
Plain cloth layer 23 material is that Plastic Flat is weaved cotton cloth, and its hole size is 40 orders.
In adsorption layer 221, sorbent material is gac, and adsorption layer 221 thickness is 1.2mm.
Polyester backbone layer 222 material is polyethylene terephthalate, and every layer thickness is 0.25mm.
Melt spraying non-woven fabrics layer 223 material is polyethylene terephthalate, and melt spraying non-woven fabrics layer 223 is two layers, and every layer thickness is 0.23mm.
Cotton layer 224 material of melt blown filter is polypropylene, and the cotton layer 224 of melt blown filter is two layers, and every layer thickness is 0.40mm.
Anionic additive layer 225 is made up of the component of following mass percent: H2O48.5%, SiO221.5%, Al2O319.5%, B2O36.5%, TiO22.0%, Fe2O31.2%, FeO0.4%, MgO0.2%, Li2O0.1% and MnO0.1%, anionic additive layer 225 thickness is 0.05mm.
Being detected by the filter core that embodiment 1 obtains, it is at 300m3When the air quantity of/h, to the disposable filtering efficiency of PM2.5 up to 92.2%, resistance is only 32Pa. Ceiling machine is tested, and within 15min, the concentration of the indoor PM2.5 of 35 square meters is from 120ug/m3Drop to 12ug/m3, circularly purifying efficiency is up to 90%.
The present invention is by the transformation to ceiling machine, can effectively realize filtration and the absorption of the obnoxious flavoures such as dust thing and formaldehyde such as PM2.5, while ensureing good Air quality, reduce purchase and the use of extra electrical equipment, and do not take redundant space, it is with a wide range of applications; Sealed rubber ring can ensure the resistance to air loss that filtering unit and frame combine, and ensures the validity filtered; The continuous replicating structure of waviness type provides bigger contact area, it is to increase the efficiency filtered; The use of plain cloth layer can realize absorption and the filtration of macrobead pollutent, supports the secondary stability that can strengthen filtering material structure, ensures its work-ing life; Polyester backbone layer has good elasticity, and the material that inside can be risen adsorption plays good support and provide protection, it is to increase the intensity of filtering material, thus extends its work-ing life; Melt spraying non-woven fabrics and melt blown filter are cotton through plasma treatment and the process of constant voltage corona charging, dust in air particle can be caught, when existence of electrostatic field ensures the charged corpuscle in air-flow by material fiber hole in it, namely caught easily, thus substantially increased solid pollutant filtration efficiency; Anionic additive layer and adsorption layer can realize the filtration of the hazardous air pollutants such as TVOC, formaldehyde, it is achieved that to the high purification efficiency of purification of air; Sealing-ring can ensure filter core and effective laminating at ceiling machine place, ensures the validity filtered.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and these all changes and deformation all should belong within the protection domain of the claims in the present invention.

Claims (10)

1. a ceiling machine, comprise housing and filter core, it is characterized in that, also comprise sealing-ring, the filtering unit that described filter core comprises frame and is arranged in frame, described filtering unit and frame junction are fitted with sealed rubber ring, described filtering unit comprises filtering material, the plain cloth layer that is fitted on filtering material and the support that is fitted on plain cloth layer secondary; Described filtering material comprises the melt spraying non-woven fabrics layer after adsorption layer, polyester backbone layer, Electrostatic Treatment and the cotton layer of the melt blown filter after Electrostatic Treatment, described polyester backbone layer is two layers, lay respectively at adsorption layer both sides, described melt spraying non-woven fabrics layer is arranged on polyester backbone layer, and the cotton layer of described melt blown filter is arranged on melt spraying non-woven fabrics layer; Described sealing-ring is fitted on frame, and described housing air inlet is provided with the groove corresponding with sealing-ring.
2. ceiling machine as claimed in claim 1, it is characterised in that, described filtering unit is the continuous replicating structure of undaform, and adjacent peaks and the spacing h of trough in the continuous replicating structure of undaform are 1.0-2.0cm, and between adjacent trough, distance d is 0.5-1.2cm.
3. ceiling machine as claimed in claim 1, it is characterised in that, described sealing-ring is two, is fitted in frame both sides respectively.
4. ceiling machine as claimed in claim 1, it is characterised in that, the described groove degree of depth is less than sealing-ring thickness, and recess width equals sealing-ring width.
5. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, described plain cloth layer material is that Plastic Flat is weaved cotton cloth, and its hole size is 20-50 order.
6. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, described filtering material also comprises anionic additive layer, and described anionic additive layer is arranged between melt spraying non-woven fabrics layer and the cotton layer of melt blown filter; Described anionic additive layer is made up of the component of following mass percent: H2O48.5%, SiO221.5%, Al2O319.5%, B2O36.5%, TiO22.0%, Fe2O31.2%, FeO0.4%, MgO0.2%, Li2O0.1% and MnO0.1%, described anionic additive layer thickness is 0.03-0.08mm.
7. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, in described adsorption layer, sorbent material is any one or several in gac, aluminum oxide, diatomite, and described adsorbent layer thickness is 1.0-1.5mm.
8. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, described melt spraying non-woven fabrics layer material is polypropylene or polyethylene terephthalate, and described melt spraying non-woven fabrics layer is two layers, and every layer thickness is 0.20-0.25mm.
9. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, the cotton layer material of described melt blown filter is polypropylene or polyethylene terephthalate, and the cotton layer of described melt blown filter is two layers, and every layer thickness is 0.25-0.45mm.
10. ceiling machine as described in item as arbitrary in claim 1-4, it is characterised in that, described polyester backbone layer material is polyethylene terephthalate or polybutylene terephthalate, and every layer thickness is 0.20-0.30mm.
CN201610189152.XA 2016-03-29 2016-03-29 Ceiling machine Pending CN105664649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610189152.XA CN105664649A (en) 2016-03-29 2016-03-29 Ceiling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610189152.XA CN105664649A (en) 2016-03-29 2016-03-29 Ceiling machine

Publications (1)

Publication Number Publication Date
CN105664649A true CN105664649A (en) 2016-06-15

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ID=56225548

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610189152.XA Pending CN105664649A (en) 2016-03-29 2016-03-29 Ceiling machine

Country Status (1)

Country Link
CN (1) CN105664649A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050059297A (en) * 2001-04-06 2005-06-17 에스디지아이 홀딩스 인코포레이티드 Anterior plating system and method
CN101137423A (en) * 2005-03-07 2008-03-05 3M创新有限公司 Vehicle passenger compartment air filter devices
CN102085437A (en) * 2009-12-04 2011-06-08 东丽纤维研究所（中国）有限公司 Filter material for air filtration and application thereof
CN103225852A (en) * 2013-04-23 2013-07-31 嘉兴奥塔尔电气科技有限公司 Integrated ceiling type air conditioner
CN203303385U (en) * 2013-03-13 2013-11-27 联范科技有限公司 Fragrant negative ion filter screen of automotive air conditioner
CN204429002U (en) * 2015-01-28 2015-07-01 广州市毅峰汽配制造有限公司 A kind of air conditioner for automobile cleaner
CN205461624U (en) * 2016-03-29 2016-08-17 江苏深氧环保科技有限公司 Inhale a machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050059297A (en) * 2001-04-06 2005-06-17 에스디지아이 홀딩스 인코포레이티드 Anterior plating system and method
CN101137423A (en) * 2005-03-07 2008-03-05 3M创新有限公司 Vehicle passenger compartment air filter devices
CN102085437A (en) * 2009-12-04 2011-06-08 东丽纤维研究所（中国）有限公司 Filter material for air filtration and application thereof
CN203303385U (en) * 2013-03-13 2013-11-27 联范科技有限公司 Fragrant negative ion filter screen of automotive air conditioner
CN103225852A (en) * 2013-04-23 2013-07-31 嘉兴奥塔尔电气科技有限公司 Integrated ceiling type air conditioner
CN204429002U (en) * 2015-01-28 2015-07-01 广州市毅峰汽配制造有限公司 A kind of air conditioner for automobile cleaner
CN205461624U (en) * 2016-03-29 2016-08-17 江苏深氧环保科技有限公司 Inhale a machine

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Application publication date: 20160615

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