CN107096306A - A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work - Google Patents

A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work Download PDF

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Publication number
CN107096306A
CN107096306A CN201710254557.1A CN201710254557A CN107096306A CN 107096306 A CN107096306 A CN 107096306A CN 201710254557 A CN201710254557 A CN 201710254557A CN 107096306 A CN107096306 A CN 107096306A
Authority
CN
China
Prior art keywords
fixed frame
installing plate
special
activated carbon
coarse filtration
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
CN201710254557.1A
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Chinese (zh)
Inventor
蒋开发
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.)
Guangzhou Hit Electronic Technology Co Ltd
Original Assignee
Guangzhou Hit Electronic 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 Guangzhou Hit Electronic Technology Co Ltd filed Critical Guangzhou Hit Electronic Technology Co Ltd
Priority to CN201710254557.1A priority Critical patent/CN107096306A/en
Publication of CN107096306A publication Critical patent/CN107096306A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0019Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/0023Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces, i.e. axial filtering
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces, i.e. axial filtering in multiple arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • B01D53/04Separation 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/06Filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/06Filtering
    • B60H3/0658Filter elements specially adapted for their arrangement in vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/06Polluted air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/45Gas separation or purification devices adapted for specific applications
    • B01D2259/455Gas separation or purification devices adapted for specific applications for transportable use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/06Filtering
    • B60H3/0658Filter elements specially adapted for their arrangement in vehicles
    • B60H2003/0666Filter elements specially adapted for their arrangement in vehicles the filter element having non-rectangular shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/06Filtering
    • B60H2003/0691Adsorption filters, e.g. activated carbon

Abstract

The invention discloses a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work, including coarse filtration net, the side of coarse filtration net is sequentially provided with fixed frame in specification identical, middle fixed frame and lower fixed frame, coarse filtration net is equipped with clamping screw at the corner away from upper fixed frame side, coarse filtration net, upper fixed frame, keeper corresponding with clamping screw is equipped with middle fixed frame and lower fixed frame, the first installing plate is provided between upper fixed frame and middle fixed frame, first installing plate is provided with some cellular standing grooves close to the side of upper fixed frame, activated carbon is filled with cellular standing groove, the inner bottom part of cellular standing groove is provided with passage, the first clamping ring is respectively and fixedly provided with the madial wall of upper fixed frame and middle fixed frame, first clamping ring is tightly connected close to the side of the first installing plate by the first sealing cotton with the first installing plate.Simple in construction, easy to use, good filtration effect of the invention, each filtering layer component easy disassembly is changed, and reduces use cost.

Description

A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work
Technical field
The present invention relates to the special train special purpose vehicle activated carbon air-conditioning filter of filter core technical field, more particularly to a kind of live line work Core.
Background technology
Automobile air-conditioning filter is a kind of filter dedicated for automobile room railway carriage or compartment inner air-cleaning.Air-conditioning filter cleaner is mounted in Front in driver's cabin, played the impurity included in air filtering, dust etc., and the effect of air-conditioning filter cleaner is to prevent this kind of thing Matter into the car, gives in-car occupants good air ambient, protects the health of occupant.
The air conditioner filter of orthodox car uses non-woven fabrics, and filter structure for air conditioner is single, can only effectively filter more than PM5 Particulate matter, while each component is inconvenient to dismantle on filter core, after long-term use, it has not been convenient to which each filtering layer in filter core is entered Row dismounting and change, improves use cost.
In order to solve the above problems, we have proposed a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of special train of the live line work proposed Special purpose vehicle activated carbon air conditioner filter element.
To achieve these goals, present invention employs following technical scheme:
A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work, including coarse filtration net, the coarse filtration net Side is sequentially provided with fixed frame in specification identical, middle fixed frame and lower fixed frame, and the coarse filtration net is away from upper fixed frame one It is equipped with the corner of side on clamping screw, the coarse filtration net, upper fixed frame, middle fixed frame and lower fixed frame and is equipped with and locks The corresponding keeper of tight bolt, is provided with the first installing plate between fixed frame and middle fixed frame, first installing plate is leaned on The side of nearly upper fixed frame, which is provided with some cellular standing grooves, the cellular standing groove, is filled with activated carbon, the honeycomb The inner bottom part of shape standing groove is provided with passage, the madial wall of fixed frame and middle fixed frame and is respectively and fixedly provided with the first clamping Ring, first clamping ring is tightly connected close to the side of the first installing plate by the first sealing cotton with the first installing plate, described The side of middle fixed frame is provided with the second installing plate, and the middle fixed frame is provided with slot corresponding with the second installing plate, described the Connection strap is arranged with two installing plates, the connection strap is provided with rubber gasket, institute close to the side of middle fixed frame lateral wall State connection strap to be connected with middle fixed frame by multiple lock-screws, second installing plate is provided with installing port, the installing port Wavy melt spraying non-woven fabrics are inside installed, provided with medium air filtration layer, the middle fixation between the middle fixed frame and lower fixed frame The madial wall of frame and lower fixed frame are equipped with the second clamping ring close to the side of medium air filtration layer, and second clamping ring is in The side for imitating filter layer is tightly connected by the second sealing cotton with medium air filtration layer, is fixed with the madial wall of the lower fixed frame High efficiency filter layer.
Preferably, first installing plate is slidingly sealed with the madial wall of upper fixed frame and middle fixed frame is connected.
Preferably, the madial wall of the slot is equidistantly provided with multiple accommodating grooves, and the inner bottom part of the accommodating groove passes through spring Wedge-shaped fixture block is connected with, second installing plate is provided with neck corresponding with wedge-shaped fixture block.
Preferably, the filter opening aperture of the coarse filtration net, medium air filtration layer and high efficiency filter layer is sequentially reduced.
Preferably, the edge of the coarse filtration net, upper fixed frame, middle fixed frame and lower fixed frame is connected by edge sealing.
In the present invention, the wavy melt spraying non-woven fabrics for reaching 99.5% or more by the filter efficiency to PM2.5 can The anaphylactogen effectively crossed in air filtering, pernicious gas, the gas with foreign flavor in automobile cab can be effectively removed by activated carbon, Cellular standing groove can increase the contact area with air, so that filter effect is improved, coarse filtration net, medium air filtration layer and height Imitate filter layer and carry out three filterings, improve the effect of air filtration, coarse filtration net, upper fixed frame, middle fixed frame and lower fixed frame It is fixedly connected by clamping screw, ease of assembly dismounting, the first clamping ring and the second clamping ring facilitate to the first installing plate respectively It is clamped with medium air filtration layer, prevents from rocking, while the first sealing cotton and the second sealing cotton cause device to keep sealing, is prevented Gas flows out.Simple in construction, easy to use, good filtration effect of the invention, each filtering layer component easy disassembly is changed, and reduction is used into This.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the special train special purpose vehicle activated carbon air conditioner filter element of live line work proposed by the present invention Figure;
Fig. 2 is the structural representation at A in Fig. 1.
In figure:1 coarse filtration net, fixed frame, 4 times fixed frames, 5 clamping screws, 6 first installing plates, 7 in fixed frame, 3 on 2 Cellular standing groove, 8 first clamping rings, 9 second installing plates, 10 connection straps, 11 lock-screws, 12 wavy melt spraying non-woven fabrics, 13 medium air filtrations layer, 14 second clamping rings, 15 second sealing cottons, 16 high efficiency filter layers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Reference picture 1-2, a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work, including coarse filtration net 1, thick mistake The side of filter screen 1 is sequentially provided with fixed frame 2 in specification identical, middle fixed frame 3 and lower fixed frame 4, coarse filtration net 1, upper fixation The edge of frame 2, middle fixed frame 3 and lower fixed frame 4 is connected by edge sealing so that while filter core is more stable and firm, increase The sealing of filter core circumferential side wall, prevents gas from being flowed out from the space of junction, coarse filtration net 1 is away from the upper side of fixed frame 2 Corner at be equipped with clamping screw 5, coarse filtration net 1, upper fixed frame 2, middle fixed frame 3 and lower fixed frame 4 and be equipped with and lock The tight corresponding keeper of bolt 5, is provided with the first installing plate 6 between upper fixed frame 2 and middle fixed frame 3, the first installing plate 6 with it is upper solid The madial wall for determining frame 2 and middle fixed frame 3 is slidingly sealed connection, strengthens the sealing of filter core, so that filter effect is improved, the first peace Plate 6 is filled to be provided with some cellular standing grooves 7, cellular standing groove 7 filled with activated carbon, honeybee close to the side of upper fixed frame 2 The inner bottom part of nest shape standing groove 7 is provided with passage, the madial wall of upper fixed frame 2 and middle fixed frame 3 and is respectively and fixedly provided with the first clamping Ring 8, the first clamping ring 8 close to the side of the first installing plate 6 by first sealing cotton be tightly connected with the first installing plate 6, in consolidate The side for determining frame 3 is provided with the second installing plate 9, and middle fixed frame 3 is provided with and the corresponding slot of the second installing plate 9, the inner side of slot Wall is equidistantly provided with multiple accommodating grooves, and the inner bottom part of accommodating groove is connected with wedge-shaped fixture block by spring, the second installing plate 9 be provided with The corresponding neck of wedge-shaped fixture block, because the elastic force of spring is acted on, so that convenient wedge shape fixture block carries out clamping to the second installing plate 9, Prevent from being arranged with connection strap 10 on fixed frame 3 in the disengaging of the second installing plate 9, the second installing plate 9, connection strap 10 is close to middle fixation The side of the lateral wall of frame 3 is provided with rubber gasket, and connection strap 10 is connected by multiple lock-screws 11 with middle fixed frame 3, and second Installing plate 9 is provided with installing port, installing port and is provided with wavy melt spraying non-woven fabrics 12, between middle fixed frame 3 and lower fixed frame 4 Provided with medium air filtration layer 13, the madial wall of middle fixed frame 3 and lower fixed frame 4 are equipped with second close to the side of medium air filtration layer 13 Clamping ring 14, the second clamping ring 14 is sealed close to the side of medium air filtration layer 13 by the second sealing cotton 15 with medium air filtration layer 13 High efficiency filter layer 16, coarse filtration net 1, medium air filtration layer 13 and high efficiency filter layer are fixed with connection, the madial wall of lower fixed frame 4 16 filter opening aperture is sequentially reduced, and by the three layer filtration of coarse filtration net 1, medium air filtration layer 13 and high efficiency filter layer 16, is improved Filter effect.
In the present invention, 99.5% or more the energy of wavy melt spraying non-woven fabrics 12 is reached by the filter efficiency to PM2.5 Enough effective anaphylactogens crossed in air filtering, pernicious gas, the peculiar smell gas in automobile cab can be effectively removed by activated carbon Body, cellular standing groove 7 can increase the contact area with air, so that filter effect is improved, coarse filtration net 1, medium air filtration Layer 13 and high efficiency filter layer 16 carry out three filterings, improve the effect of air filtration, coarse filtration net 1, upper fixed frame 2, middle fixation Frame 3 is fixedly connected with lower fixed frame 4 by clamping screw 5, ease of assembly dismounting, 14 points of the first clamping ring 8 and the second clamping ring The first installing plate 6 and medium air filtration layer 13 Fang Bian be clamped, prevent from rocking, while the first sealing cotton and the second sealing cotton 15 cause device to keep sealing, prevent gas from flowing out.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (5)

1. a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work, including coarse filtration net (1), it is characterised in that institute The side for stating coarse filtration net (1) is sequentially provided with fixed frame (2) in specification identical, middle fixed frame (3) and lower fixed frame (4), institute State and be equipped with clamping screw (5) at corner of the coarse filtration net (1) away from upper fixed frame (2) side, the coarse filtration net (1), on Keeper corresponding with clamping screw (5) is equipped with fixed frame (2), middle fixed frame (3) and lower fixed frame (4), it is described solid Determine to be provided with the first installing plate (6) between frame (2) and middle fixed frame (3), first installing plate (6) is close to upper fixed frame (2) Side, which is provided with some cellular standing grooves (7), the cellular standing groove (7), is filled with activated carbon, the cellular placement The inner bottom part of groove (7) is provided with passage, the madial wall of fixed frame (2) and middle fixed frame (3) and is respectively and fixedly provided with the first folder Tight ring (8), first clamping ring (8) passes through the first sealing cotton and the first installing plate (6) close to the side of the first installing plate (6) It is tightly connected, the side of the middle fixed frame (3) is provided with the second installing plate (9), and the middle fixed frame (3) is provided with and the second peace Fill and connection strap (10) is arranged with the corresponding slot of plate (9), second installing plate (9), the connection strap (10) is in The side of fixed frame (3) lateral wall is provided with rubber gasket, and the connection strap (10) is consolidated by multiple lock-screws (11) with Determine frame (3) connection, second installing plate (9) is provided with installing port, the installing port and is provided with wavy melt spraying non-woven fabrics (12), provided with medium air filtration layer (13), the inner side of the middle fixed frame (3) between the middle fixed frame (3) and lower fixed frame (4) Wall and lower fixed frame (4) are equipped with the second clamping ring (14), second clamping ring close to the side of medium air filtration layer (13) (14) be tightly connected close to the side of medium air filtration layer (13) by the second sealing cotton (15) and medium air filtration layer (13), it is described under High efficiency filter layer (16) is fixed with the madial wall of fixed frame (4).
2. a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work according to claim 1, it is characterised in that First installing plate (6) is slidingly sealed with the madial wall of upper fixed frame (2) and middle fixed frame (3) to be connected.
3. a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work according to claim 1, it is characterised in that The madial wall of the slot is equidistantly provided with multiple accommodating grooves, and the inner bottom part of the accommodating groove is connected with wedge-shaped fixture block by spring, Second installing plate (9) is provided with neck corresponding with wedge-shaped fixture block.
4. a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work according to claim 1, it is characterised in that The filter opening aperture of the coarse filtration net (1), medium air filtration layer (13) and high efficiency filter layer (16) is sequentially reduced.
5. a kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work according to claim 1, it is characterised in that The coarse filtration net (1), upper fixed frame (2), the edge of middle fixed frame (3) and lower fixed frame (4) are connected by edge sealing.
CN201710254557.1A 2017-04-18 2017-04-18 A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work Pending CN107096306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710254557.1A CN107096306A (en) 2017-04-18 2017-04-18 A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710254557.1A CN107096306A (en) 2017-04-18 2017-04-18 A kind of special train special purpose vehicle activated carbon air conditioner filter element of live line work

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CN107096306A true CN107096306A (en) 2017-08-29

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108945289A (en) * 2018-07-05 2018-12-07 安徽睿知信信息科技有限公司 A kind of ship cabin light weight cellular siding and assembling process
CN110652804A (en) * 2019-10-10 2020-01-07 极达鑫环境科技(重庆)有限公司 High-airtight efficient filter screen installing frame
GB2575319A (en) * 2018-07-06 2020-01-08 Dyson Automotive Res And Development Limited Vehicle cabin filter assembly
GB2575322A (en) * 2018-07-06 2020-01-08 Dyson Automotive Res And Development Limited Vehicle cabin filter assembly
CN111386231A (en) * 2017-10-27 2020-07-07 泰尔酷博有限公司 Antibacterial deodorizing air distribution type garbage can
CN111632438A (en) * 2020-03-17 2020-09-08 苏州逸新和电子有限公司 Filter for automobile air conditioning system
CN112076544A (en) * 2019-06-13 2020-12-15 广东美的制冷设备有限公司 Screen assembly, air purification device and air conditioner

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WO2006052094A1 (en) * 2004-11-13 2006-05-18 Anus Co., Ltd. Air cleaner for car
CN201558623U (en) * 2009-05-18 2010-08-25 北京埃森恒业科技有限公司 Combined type filtering device
CN205536155U (en) * 2016-02-03 2016-08-31 浙江湘牛环保科技发展有限公司 Indoor ventilator
CN205717821U (en) * 2016-04-22 2016-11-23 广州快净环保科技有限公司 Fresh air purifier
CN205783673U (en) * 2016-05-16 2016-12-07 佛山市养气环保科技有限公司 A kind of HEPA filter assemblies on air purifier
CN205825384U (en) * 2016-03-23 2016-12-21 台州中黄工贸有限公司 A kind of filter screen of air purifier overall architecture
CN206027347U (en) * 2016-09-05 2017-03-22 山东永华净化科技有限公司 Vehicle air conditioner filter element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006052094A1 (en) * 2004-11-13 2006-05-18 Anus Co., Ltd. Air cleaner for car
CN201558623U (en) * 2009-05-18 2010-08-25 北京埃森恒业科技有限公司 Combined type filtering device
CN205536155U (en) * 2016-02-03 2016-08-31 浙江湘牛环保科技发展有限公司 Indoor ventilator
CN205825384U (en) * 2016-03-23 2016-12-21 台州中黄工贸有限公司 A kind of filter screen of air purifier overall architecture
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111386231A (en) * 2017-10-27 2020-07-07 泰尔酷博有限公司 Antibacterial deodorizing air distribution type garbage can
CN108945289A (en) * 2018-07-05 2018-12-07 安徽睿知信信息科技有限公司 A kind of ship cabin light weight cellular siding and assembling process
GB2575319A (en) * 2018-07-06 2020-01-08 Dyson Automotive Res And Development Limited Vehicle cabin filter assembly
GB2575322A (en) * 2018-07-06 2020-01-08 Dyson Automotive Res And Development Limited Vehicle cabin filter assembly
GB2575319B (en) * 2018-07-06 2020-11-04 Dyson Technology Ltd Vehicle Cabin Filter Assembly
CN112076544A (en) * 2019-06-13 2020-12-15 广东美的制冷设备有限公司 Screen assembly, air purification device and air conditioner
CN112076544B (en) * 2019-06-13 2021-10-26 广东美的制冷设备有限公司 Screen assembly, air purification device and air conditioner
CN110652804A (en) * 2019-10-10 2020-01-07 极达鑫环境科技(重庆)有限公司 High-airtight efficient filter screen installing frame
CN111632438A (en) * 2020-03-17 2020-09-08 苏州逸新和电子有限公司 Filter for automobile air conditioning system

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Application publication date: 20170829