CN110237647A - A kind of Combined leakage-proof wind air-conditioning assembly and filter cartridge construction - Google Patents
A kind of Combined leakage-proof wind air-conditioning assembly and filter cartridge construction Download PDFInfo
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- CN110237647A CN110237647A CN201910505933.9A CN201910505933A CN110237647A CN 110237647 A CN110237647 A CN 110237647A CN 201910505933 A CN201910505933 A CN 201910505933A CN 110237647 A CN110237647 A CN 110237647A
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- core frame
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- wind air
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters 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
-
- 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
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0085—Smell or pollution preventing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0608—Filter arrangements in the air stream
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- 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
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- 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
- B01D2257/708—Volatile organic compounds V.O.C.'s
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Analytical Chemistry (AREA)
- Atmospheric Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Materials (AREA)
Abstract
The present invention relates to a kind of Combined leakage-proof wind air-conditioning assembly and filter cartridge constructions, including filter core storehouse, filter core frame, the filter being fixedly connected with filter core frame；The filter core storehouse is placed in the lower section of return air inlet, the top of air blower, and side equipped with filter core cover board；The filter is equipped with several layers filter layer, and whole is in laterally consecutive W-shaped accordion；The filter core frame is set as first part and second part；The first part and second part, it is opposite on long side lateral surface to be equipped at least one protrusion and caulking groove, and protrusion is embedded in caulking groove, short side inner sidewall is equipped with several support rods, and support rod is embedded in the top of each accordion of filter；On the inside of the long side of the another first part and second part, on the position at top, it is additionally provided with groove, is embedded with coarse strainer in groove.
Description
Technical field
The invention belongs to field of automobile air conditioner, more particularly, to a kind of automobile air conditioner filter element field.
Background technique
Automobile is the important vehicles of today's society, with the improvement of living standards, the popularity rate of automobile is also increasingly
It is high；Automobile early has become our the main living space in addition to family and company at present, but containing a large amount of in the outer air of vehicle
Harmful substance, for example, finely ground particles, pollen, bacterium, industrial waste gas and dust etc.；Air-conditioning all bands on present automobile are free
Filter core is adjusted, to filter the air entered in compartment from the external world, filters out these impurity, dust, the molecule etc. in air, from
And promote the air quality in compartment；However, the dust containing capacity due to air conditioner filter element is limited, it is saturated in the dust containing capacity of air conditioner filter element
When, on-board air conditioner also just loses air filtration effect significantly, in the case where especially having a large amount of floccules in air, more holds
Filter core function easily is substantially reduced, or even is directly failed；Resource is set to cause significant wastage and the use cost of consumer in this way
It greatly promotes；When replacing filter core, generally replaced from vehicle copilot glove box side, narrow space；Therefore how to design
The structure and size of filter core has highly important influence to the using effect of air-conditioning, while needing to take into account service life, using
Cost and filter effect；It is many using longitudinal ripple glaze non-woven fabrics filter cartridge construction currently on the market, for a long time using will appear in
Between malformation it is serious, cause to leak out and there is foreign matter to fall into the risk in air blower.
Summary of the invention
To solve the above-mentioned problems, the present invention through the following technical solutions to achieve the above objectives:
A kind of Combined leakage-proof wind air conditioner filter element structure including filter core storehouse, filter core frame, is fixedly connected with filter core frame
Filter；The filter core storehouse is placed in the lower section of return air inlet, the top of air blower, and side equipped with filter core cover board；The filter
Equipped with several layers filter layer, and whole is in laterally consecutive W-shaped accordion；The filter core frame is set as first part and second
Point；The first part and second part, it is opposite on long side lateral surface to be equipped at least one protrusion and caulking groove, and protrusion is embedding
In caulking groove, short side inner sidewall is equipped with several support rods, and support rod is embedded at each accordion of filter
In top；On the inside of the long side of the another first part and second part, on the position at top, it is additionally provided with groove, in groove
It is embedded with coarse strainer.
As a further optimization solution of the present invention, the filter successively by non-woven fabrics, silver-carrying nano active carbon, PP with
PET composite highly effective filter membrane, non-woven fabrics are integrally combined；Wherein, non-woven fabrics can filter hair, floccule and pollen etc. compared with
Big object；And silver-carrying nano active carbon can both adsorb harmful gas such as formaldehyde, benzene,toluene,xylene, ammonia, TVOC in air
Body molecule, while silver ion has very strong killing effect to bacterial virus；Then PP and PET composite highly effective filter paper are HEPA filter
Film further can effectively filter the particle of particle diameter >=0.5 micron, especially pm2.5；Further, it is also possible to work
Property charcoal do not adsorb sufficiently air pollutants further progress filtering.
As a further optimization solution of the present invention, the crimp height of the filter is between 3 centimeters to 5 centimeters；
In order to reduce filter core resistance, increase filter area using folding height is increased, but when folding is high be higher than 5cm when, gap between fold
It is easy to fit together, increases filtration resistance instead.
As a further optimization solution of the present invention, deodorization device, the deodorization device are additionally provided in the filter core frame
Including fluid reservoir, U-tube；Wherein, the fluid reservoir, in filter core frame and on the position of close bottom, built with day
Right plant deodorant；The U-tube, one end and fluid reservoir connection, the other end pass through the inner sidewall of filter core frame and suspend close
The lower section of filter.
As a further optimization solution of the present invention, the coarse strainer is two-layer nonwoven；Non-woven fabrics is with acrylic resin
For main production raw material, light weight, pliability are good, and performance is stablized, nontoxic, free from extraneous odour, good environmental protection.
As a further optimization solution of the present invention, the contact surface surrounding of the filter core storehouse and filter core frame is equipped with sealing
Circle；By sealing ring can make filtered air can not between filter core frame and filter core storehouse gap outflow, directly into
Enter into air blower, large particle is avoided to damage air blower, also avoids evaporator and block up dirty caused air-conditioning failure.
As a further optimization solution of the present invention, the filter core cover board, length be greater than filter core frame first part or
The bond length of second part, but the length of shorter than filter core frame long side；It is limited when replacing filter core by space structure, therefore only
Filter core can be put into filter core storehouse step by step, the length that the length of such filter core cover board is greater than short side facilitates second part and first part
It is chimeric mutually.
As a further optimization solution of the present invention, the filter core frame uses rigid plastics；Enhance the strong of filter core frame
Degree, prevents from being deformed filter core frame when wind-force is larger, so as to cause leaking out.
The beneficial effects of the present invention are:
1) present invention is designed side by side using lateral ripple glaze non-woven fabrics filter core, and structural strength increases, and is unlikely to deform；
2) filter core frame is entrenched togather mutually, avoids the problem that being easy to produce gap between filter core placed side by side；
3) a cleverly individually designed convenient dismountable coarse filtration net above traditional filter, accordingly even when because
Severe air regime causes biggish floccule or particulate matter to block filter outer layer to generation the case where loss of function,
It can be individually replaced coarse filtration layer, the service life of lower section filter is substantially increased, can also reduce the use cost of consumer.
Detailed description of the invention
Fig. 1 is air-conditioning module structural schematic diagram of the invention；
Fig. 2 is air-conditioning module of the invention along A-A diagrammatic cross-section；
Fig. 3 is the horizontal section schematic diagram of filter core frame in the present invention；
Fig. 4 is the structural schematic diagram that filter core frame first part is chimeric with second part in the present invention；
Fig. 5 is filter core frame first part structural schematic diagram in the present invention；
Fig. 6 is filter core frame second part structural schematic diagram in the present invention；
Fig. 7 is the structural schematic diagram of coarse strainer in the present invention；
Fig. 8 is the diagrammatic cross-section of filter in the present invention；
Fig. 9 is the structural schematic diagram of deodorization device in the present invention；
In figure: 1, filter core storehouse；11, return air inlet；12, air blower；2, filter core frame；21, first part；22, second part；
23, raised；24, caulking groove；25, groove；26, deodorization device；261, fluid reservoir；262, U-tube；263, natural plant deodorant；
3, filter；31, filter layer；32, non-woven fabrics；33, PP and PET composite highly effective filter membrane；34, silver-carrying nano active carbon；4, filter core
Cover board；5, support rod；6, coarse strainer；7, sealing ring；
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
Embodiment one:
A kind of Combined leakage-proof wind air-conditioning assembly as shown in Figures 1 to 6 and filter cartridge construction；Including filter core storehouse 1, filter core side
Frame 2, the filter 3 being fixedly connected with filter core frame 2；The filter core storehouse 1, is placed in the lower section of return air inlet 11, air blower 12 it is upper
Side, and side is equipped with filter core cover board 4；The filter core cover board 4, length are greater than first part 21 or the second part of filter core frame 2
22 bond length, but the length of shorter than 2 long side of filter core frame；It is limited, therefore can only be divided by space structure when replacing filter core
Filter core is put into filter core storehouse by step, and the length that the length of such filter core cover board 4 is greater than short side facilitates second part 22 and first part
21 is chimeric mutually；The filter core storehouse 1 and the contact surface surrounding of filter core frame 2 are equipped with sealing ring 7；It can be made by sealing ring 7
Filtered air can not between filter core frame 2 and filter core storehouse 1 gap outflow, enter directly into air blower 12, keep away
Exempt from large particle damage air blower 12, also avoids evaporator and block up dirty caused air-conditioning failure；Another filter core frame 2 uses hard
Plastics；The intensity that filter core frame 2 can be enhanced prevents from being deformed filter core frame 2 when wind-force is larger, so as to cause leaking out.
Embodiment two:
Such as Fig. 7 to a kind of Combined leakage-proof wind air-conditioning assembly shown in Fig. 8 and filter cartridge construction；On the basis of embodiment one
On, further；The filter 3 is equipped with several layers filter layer 31, and whole is in laterally consecutive W-shaped accordion；The filtering
The crimp height of device 3 is between 3 centimeters to 5 centimeters；In order to reduce filter core resistance, increase filtering surface using folding height is increased
Product, but when folding is higher than 5cm, the gap between fold is easy to fit together, and increases filtration resistance instead；By the filter
Core frame 2 is set as first part 21 and second part 22；The first part 21 and second part 22, on long side lateral surface
It is opposite to be equipped at least one protrusion 23 and caulking groove 24, and protrusion 23 is embedded in caulking groove 24, short side inner sidewall is equipped with several
Support rod 5, and support rod 5 is embedded in the top of each accordion of filter 3, support frame can be to the top of filter 3
Portion is supported, styling, is prevented high wind from acting on lower fold and is deviated to the left and right, increases windage, to influence air-out effect；
On the inside of the long side of the another first part 21 and second part 22, on the position at top, it is additionally provided with groove 25, in groove 25
It is embedded with coarse strainer 6, that is, uses two-layer nonwoven 32；；The filter 3 successively by non-woven fabrics 32, silver-carrying nano active carbon 34,
PP and PET composite highly effective filter membrane 33, non-woven fabrics 32 are integrally combined；Wherein, non-woven fabrics 32 can filter hair, floccule,
And the larger objects such as pollen, and non-woven fabrics 32, using acrylic resin as main production raw material, light weight, pliability are good, and
Performance is stablized, nontoxic, free from extraneous odour, good environmental protection, and price is also cheaper；And silver-carrying nano active carbon 34 can both adsorb sky
The pernicious gases molecules such as formaldehyde, benzene,toluene,xylene, ammonia, TVOC in gas, at the same silver ion have to bacterial virus it is very strong
Killing effect；Then PP and PET composite highly effective filter membrane 33 are HEPA filter membrane, further can effectively filter particle diameter >=
0.5 micron of particle, especially pm2.5；Further, it is also possible to the air pollutants that active carbon is not adsorbed sufficiently further into
Row filtering；In view of cost and windage, filter removes two sides non-woven fabrics, and centre uses composite functional material, so as to
To reduce thickness, cost is reduced.
Embodiment three:
A kind of Combined leakage-proof wind air-conditioning assembly as shown in Figure 9 and filter cartridge construction；On the basis of example 2, more into
One step；Deodorization device 26 is additionally provided in the filter core frame 2, the deodorization device 26 includes fluid reservoir 261, U-tube 262；Its
In, the fluid reservoir 261, in filter core frame 2 and on the position of close bottom, built with natural plant deodorant 263；
The U-tube 262, one end and 261 connection of fluid reservoir, the other end pass through the inner sidewall of filter core frame 2 and suspend close to filter 3
Lower section；In order to ensure that natural plant deodorant 263 in fluid reservoir 261 will not be spilt or leaked out under specific condition again, storing up
One piece of sponge is placed in the bottom of liquid chamber 261, after the volatilization of natural plant deodorant 263 is atomised to space, forms particle very little
Mist particles, mist particles have very big specific surface area, can efficiently absorb the malodor molecule in air, the evil being adsorbed
Smelly molecule can react with the effective component in plant extraction liquid, generate tasteless, nontoxic substance.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (8)
1. a kind of Combined leakage-proof wind air-conditioning assembly and filter cartridge construction, including filter core storehouse (1), filter core frame (2) and filter core frame
(2) filter (3) being fixedly connected；The filter core storehouse (1), is placed in the lower section of return air inlet (11), the top of air blower (12), and
Side is equipped with filter core cover board (4)；The filter (3) is equipped with several layers filter layer (31), and whole is in laterally consecutive W-shaped fold
Shape；It is characterized by: the filter core frame (2) is set as first part (21) and second part (22)；The first part (21)
It is opposite on long side lateral surface to be equipped at least one raised (23) and caulking groove (24), and protrusion (23) with second part (22)
It is embedded in caulking groove (24), short side inner sidewall is equipped with several support rods (5), and support rod (5) is embedded at filter (3)
Each accordion top in；On the inside of the long side of the another first part (21) and second part (22), close to the position at top
It sets, is additionally provided with groove (25), be embedded with coarse strainer (6) in groove (25).
2. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the mistake
Filter (3) is successively by non-woven fabrics (32), silver-carrying nano active carbon (34), PP and PET composite highly effective filter membrane (33), non-woven fabrics (32)
Integrally it is combined.
3. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the mistake
The crimp height of filter (3) is between 3 centimeters to 5 centimeters.
4. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the filter
It is additionally provided with deodorization device (26) in core frame (2), the deodorization device (26) includes fluid reservoir (261), U-tube (262)；Its
In, the fluid reservoir (261) is set on the position in filter core frame (2) and close to bottom, built with natural plant deodorant
(263)；The U-tube (262), one end and fluid reservoir (261) connection, the other end pass through the inner sidewall of filter core frame (2) and hang
Rest against the lower section of nearly filter (3)；.
5. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the coarse strainer
(6) it is two-layer nonwoven (32).
6. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the filter
The contact surface surrounding of core storehouse (1) and filter core frame (2) is equipped with sealing ring (7).
7. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the filter
Core cover plate (4), length is greater than the first part (21) of filter core frame (2) or the bond length of second part (22), but shorter than filters
The length of core frame (2) long side.
8. a kind of Combined leakage-proof wind air-conditioning assembly according to claim 1 and filter cartridge construction, it is characterised in that: the filter
Core frame (2) uses rigid plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505933.9A CN110237647B (en) | 2019-06-12 | 2019-06-12 | Modular air conditioner filter core structure of leaking out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505933.9A CN110237647B (en) | 2019-06-12 | 2019-06-12 | Modular air conditioner filter core structure of leaking out |
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| Publication Number | Publication Date |
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| CN110237647A true CN110237647A (en) | 2019-09-17 |
| CN110237647B CN110237647B (en) | 2021-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023538A (en) * | 2020-08-27 | 2020-12-04 | 吉林中建南方环境科技有限公司 | Buckle formula combination filter and filtration system |
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| CN206493813U (en) * | 2016-11-14 | 2017-09-15 | 东莞市律奥过滤器有限公司 | A kind of Combined automobile air conditioner filter |
| CN107970702A (en) * | 2017-11-28 | 2018-05-01 | 芜湖蓝博塑胶有限公司 | A kind of car filters net |
| CN207546037U (en) * | 2017-11-28 | 2018-06-29 | 东莞市佳瑞环保材料有限公司 | A kind of automobile air-conditioning filter |
| CN209752428U (en) * | 2018-12-28 | 2019-12-10 | 佛山市顺德区阿波罗环保器材有限公司 | filter element, air filtering assembly and automobile air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023538A (en) * | 2020-08-27 | 2020-12-04 | 吉林中建南方环境科技有限公司 | Buckle formula combination filter and filtration system |
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