CN211106845U - Air filtering device and automobile air conditioner assembly - Google Patents
Air filtering device and automobile air conditioner assembly Download PDFInfo
- Publication number
- CN211106845U CN211106845U CN201921943475.9U CN201921943475U CN211106845U CN 211106845 U CN211106845 U CN 211106845U CN 201921943475 U CN201921943475 U CN 201921943475U CN 211106845 U CN211106845 U CN 211106845U
- Authority
- CN
- China
- Prior art keywords
- partition wall
- air
- opening
- filter
- wall
- 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.)
- Active
Links
Images
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model relates to an air filter equipment and vehicle air conditioner assembly. The utility model provides an air filtering device, because first partition wall protrusion sets up on the inner wall and the circumference of following the casing is closed, and the internal surface of first partition wall prescribes a limit to first intermediate aisle in airflow channel, consequently, the air current of pressing close to the inner wall of casing can be guided to the inner wall of keeping away from the casing when through first intermediate aisle, pass at the middle part of following first filter core, thereby the possibility that the air current flowed through between the inner wall of the periphery side of having reduced the air current from first filter core and casing, and then air filtering device's efficiency has been improved. The utility model provides a vehicle air conditioner assembly, including above-mentioned air filter, therefore also have efficient advantage.
Description
Technical Field
The utility model relates to a vehicle air conditioner field, concretely relates to air filter equipment and vehicle air conditioner assembly.
Background
With the development of society, the requirements of people on the quality of living environment are higher and higher, and the air quality also attracts more and more attention. In addition to the air quality in the building environment, the air quality in the vehicle cabin is also closely related to the quality of life of people.
To improve the air quality in the vehicle cabin, the air conditioning assembly of the vehicle may include an air filtration device. The air filtration device includes a housing and a filter element. An inner wall of the housing defines an air flow passage in which a filter element is disposed to filter air flowing through the air flow passage.
In the prior art, the shell further comprises a filter element limiting structure. The filter element limiting structure is arranged in the air flow channel and used for limiting the position of the filter element.
In the prior art, part of the air flow passes between the outer peripheral side of the filter element and the inner wall of the housing without being filtered, which reduces the efficiency of the air filter device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air filter has efficient advantage.
An object of the utility model is to provide a vehicle air conditioner assembly, this vehicle air conditioner assembly includes above-mentioned air filter.
The air filter device comprises a first filter element and a shell, wherein the inner wall of the shell defines an air flow channel for allowing air flow to pass through; the first filter element is disposed in the airflow passage to filter the airflow;
the air filtering device further comprises a first partition wall which is convexly arranged on the inner wall and is closed along the circumferential direction of the shell, wherein the inner surface of the first partition wall defines a first middle channel in the air flow channel;
the first filter element is disposed on an upstream side or a downstream side of the first partition wall in a flow direction of the gas flow.
In one embodiment, the air filtration device further comprises a second partition wall; the second partition wall is convexly arranged on the inner wall and closed along the circumferential direction of the shell, wherein the inner surface of the second partition wall defines a second middle channel in the airflow channel;
the second partition wall is disposed at a downstream side of the first partition wall, and the first filter element is disposed at a downstream side of the first partition wall and at an upstream side of the second partition wall in a flow direction of the air flow.
In one embodiment, the air filtration device further comprises a second filter cartridge; the second filter element is disposed on a downstream side of the second partition wall in a flow direction of the gas flow.
In one embodiment, the air filtration device further comprises a third partition wall; the third partition wall is convexly arranged on the inner wall and closed along the circumferential direction of the shell, wherein the inner surface of the third partition wall defines a third middle channel in the airflow channel;
the third partition wall is disposed on a downstream side of the second partition wall in a flow direction of the air flow, and the second filter element is disposed on an upstream side of the third partition wall.
In one embodiment, the air filtration device further comprises a third filter cartridge; the third filter element is disposed on a downstream side of the third partition wall in a flow direction of the gas flow.
In one embodiment, the air filtration device further comprises a fourth partition wall; the fourth partition wall is convexly arranged on the inner wall and closed along the circumferential direction of the shell, wherein the inner surface of the fourth partition wall defines a fourth middle channel in the airflow channel;
the fourth partition wall is disposed on a downstream side of the third partition wall in a flow direction of the air flow, and the third filter element is disposed on an upstream side of the fourth partition wall.
In one embodiment, the housing defines a first opening, a second opening, and a third opening; the first opening, the second opening and the third opening are respectively communicated with the airflow channel;
the first opening allows the first filter element to pass through and enter and exit the housing, the second opening allows the second filter element to pass through and enter and exit the housing, and the third opening allows the third filter element to pass through and enter and exit the housing;
the second partition wall is connected on the inner wall and is located first opening with between the second opening, the third partition wall is connected on the inner wall and is located the second opening with between the third opening.
In one embodiment, the air filtration device further comprises one or more covers; one or more of the covers are adapted to be coupled to the housing to close the first opening, the second opening, and the third opening.
In one embodiment, the first filter element is a primary filter element, the second filter element is a secondary filter element, and the third filter element is a high efficiency filter element.
To achieve the object, a vehicle air conditioning assembly comprises an air filter device as described above.
The utility model discloses an actively advance the effect and lie in: the utility model provides an air filtering device, because first partition wall protrusion sets up on the inner wall and the circumference of following the casing is closed, and the internal surface of first partition wall prescribes a limit to first intermediate aisle in airflow channel, consequently, the air current of pressing close to the inner wall of casing can be guided to the inner wall of keeping away from the casing when through first intermediate aisle, pass at the middle part of following first filter core, thereby the possibility that the air current flowed through between the inner wall of the periphery side of having reduced the air current from first filter core and casing, and then air filtering device's efficiency has been improved. The utility model provides a vehicle air conditioner assembly, including above-mentioned air filter, therefore also have efficient advantage.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an automotive air conditioning assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of an air filtration unit according to an embodiment of the present invention;
FIG. 3 is a schematic view of an air filtration unit with a cover removed in accordance with an embodiment of the present invention;
fig. 4 is a schematic view of a housing in an embodiment of the invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
fig. 6 is a schematic view of a first filter element, a second filter element, and a third filter element positioned side-by-side in an embodiment of the invention;
fig. 7 is a schematic view of a first filter cartridge in an embodiment of the invention;
fig. 8 is a schematic view of a first cartridge body according to an embodiment of the present invention;
fig. 9 is a schematic view of the arrangement of a first cartridge body, a second cartridge body, and a third cartridge body in an embodiment of the invention;
fig. 10 is a schematic view of a first filter element, a second filter element, and a third filter element positioned side-by-side in an embodiment of the invention, showing a handle;
fig. 11 is a schematic view of a housing according to an embodiment of the present invention.
Detailed Description
The following discloses embodiments or examples of various implementations of the subject technology. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present invention. For example, a first feature described later in the specification may be distributed over a second feature and may include embodiments in which the first and second features are distributed in direct association, or may include embodiments in which additional features may be formed between the first and second features, such that the first and second features may not be directly associated with each other. Additionally, reference numerals and/or letters may be repeated among the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It should be noted that fig. 1 to 11 are only examples, are not drawn to scale, and should not be taken as limiting the scope of the invention.
The automobile air conditioner assembly comprises a shell, a fan, an evaporator, a warm air heat exchanger and other structures. The evaporator and the warm air heat exchanger are both arranged in an air duct inside the shell, and the fan is used for enabling air flow to enter the air duct inside the shell and flow through the evaporator or the warm air heat exchanger, so that the air flow is cooled or heated. Under the action of the fan, the cooled or heated air flow is sent into the carriage, so that personnel in the carriage can obtain a more comfortable environment.
To improve the air quality in the vehicle cabin, the air conditioning assembly of the vehicle may include an air filtration device. The air filtration device includes a housing and a filter element. An inner wall of the housing defines an air flow passage in which a filter element is disposed to filter air flowing through the air flow passage.
Fig. 1 illustrates an automotive air conditioning assembly 900 according to an embodiment of the present invention. The vehicle air conditioning assembly 900 includes a fan 902, a circulation flap 901, an air filtration device 90, an evaporator 903, a temperature sensor 904, a heater 905, a bypass flap 906, and a piping structure connecting the aforementioned components.
The circulating flap valve 901 has different working positions to switch the vehicle air conditioner assembly 900 into a fresh air mode or an internal circulation mode. In fig. 1, the vehicle air conditioning assembly 900 is in a fresh air mode. The air flow F from outside the cabin enters the vehicle air conditioning assembly 900 through the circulating flap 901 under the action of the fan 902, is filtered through the air filtering device 90, and finally enters the cabin through the heater 905 or the bypass flap 906. The temperature sensor 904 can monitor the temperature of the evaporator 903, providing a temperature parameter for system control.
Referring to fig. 1, 4, 5, 11, in one embodiment, an air filtration device 90 includes a first cartridge 1 and a housing 4, an inner wall 4a of the housing 4 defining an air flow passage 40 that permits an air flow F to pass therethrough; the first filter cartridge 1 is disposed in the air flow passage 40 to filter the air flow F.
In order to reduce the possibility of the air flow F passing between the outer peripheral side of the first filter cartridge 1 and the inner wall 4a of the housing 4, the air filter device 90 further includes a first partition wall 51, the first partition wall 51 being provided protrudingly on the inner wall 4a and being closed in the circumferential direction of the housing 4, wherein an inner surface 51a of the first partition wall 51 defines a first intermediate passage 510 in the air flow passage 40; the first filter element 1 is disposed on the upstream side or the downstream side of the first partition wall 51 in the flow direction of the air flow F, that is, any one of the first filter element 1 and the first partition wall 51 is disposed in tandem with the other in the flow direction of the air flow F. In fig. 1, the first filter cartridge 1 is disposed on the downstream side of the first partition wall 51.
In the above embodiment, the first filter cartridge 1 may be in direct contact with the first partition wall 51, so that the first partition wall 51 can perform a limiting function on the first filter cartridge 1, or the first filter cartridge 1 may be fixed by another limiting structure to maintain a certain gap from the first partition wall 51, but be close to the first partition wall 51.
The utility model discloses an air filter device 90 that above-mentioned embodiment provided, because first partition wall 51 protrusion sets up on inner wall 4a and along casing 4's circumference is closed, and first intermediate channel 510 is injectd to the internal surface 51a of first partition wall 51 in airflow channel 40, consequently, the air current F of inner wall 4a of pressing close to casing 4 can be guided to the inner wall 4a of keeping away from casing 4 when passing through first intermediate channel 510, pass from the middle part of first filter core 1, thereby the possibility that air current F flowed through between the periphery side of first filter core 1 and the inner wall 4a of casing 4 has been reduced, and then air filter device 90's efficiency has been improved. The utility model provides a vehicle air conditioner assembly 900, including above-mentioned air filter 90, therefore also have efficient advantage.
Referring to fig. 1, 4, 5, 11, the air filter device 90 further includes a second partition wall 52; the second partition wall 52 is protrudingly provided on the inner wall 4a and closed in the circumferential direction of the housing 4, wherein an inner surface 52a of the second partition wall 52 defines a second intermediate passage 520 in the airflow passage 40; the second partition wall 52 is provided on the downstream side of the first partition wall 51, and the first filter cartridge 1 is provided on the downstream side of the first partition wall 51 and on the upstream side of the second partition wall 52 in the flow direction of the air flow F. This design allows for easy entry of the gas flow F from the middle of the first cartridge 1 and easy exit from the middle of the first cartridge 1.
Referring to fig. 1, 4, 5, 6, 11, the air filtration device 90 further includes a second filter cartridge 2; the second filter element 2 is disposed on the downstream side of the second partition wall 52 in the flow direction of the air flow F. Such a design helps to improve the filtration efficiency of the air filtration device 90.
Specifically, the second filter element 2 may have a higher filtering capacity than the first filter element 1, for example, the first filter element 1 is a primary filter, and the second filter element 2 is a secondary filter, wherein the primary filter 3 is used for filtering larger particulate matters and dust in the air flow F, and the primary filter 3 may be made of a non-woven fabric; medium filters, which may be made of glass fibers, are used to filter smaller particles and harmful gases in the gas flow F.
With continued reference to fig. 1, 4, 5, 11, the air filtration device 90 further includes a third partition wall 53; the third partition wall 53 is protrudingly provided on the inner wall 4a and closed in the circumferential direction of the housing 4, wherein an inner surface 53a of the third partition wall 53 defines a third intermediate passage 530 in the airflow passage 40; the third partition wall 53 is disposed on the downstream side of the second partition wall 52, and the second filter element 2 is disposed on the upstream side of the third partition wall 53 in the flow direction of the air flow F. This design allows for easy entry of the gas flow F from the middle of the second cartridge 2 and easy exit from the middle of the second cartridge 2.
Referring to fig. 1, 4, 5, 6, 11, the air filter device 90 further includes a third filter cartridge 3; the third filter element 3 is disposed on the downstream side of the third partition wall 53 in the flow direction of the gas flow F. Such a design helps to improve the filtration efficiency of the air filtration device 90.
In particular, the third filter element 3 can have a higher filtering capacity with respect to the second filter element 2, for example, the third filter element 3 can be a high efficiency filter for filtering particles in the gas flow F. The high efficiency filter can be made of ultra-fine glass fiber paper.
With continued reference to fig. 1, 4, 5, 11, the air filtration device 90 further includes a fourth partition wall 54; a fourth partition wall 54 is provided protrudingly on the inner wall 4a and closed in the circumferential direction of the housing 4, wherein an inner surface 54a of the fourth partition wall 54 defines a fourth intermediate passage 540 within the airflow passage 40; the fourth partition wall 54 is disposed on the downstream side of the third partition wall 53 in the flow direction of the air flow F, and the third filter element 3 is disposed on the upstream side of the fourth partition wall 54. This design allows for easy entry of the gas flow F from the middle of the third cartridge 3 and easy exit from the middle of the third cartridge 3.
As shown in fig. 3, 4, 5 and 11, the housing 4 is provided with a first opening 410, a second opening 420 and a third opening 430; the first opening 410, the second opening 420 and the third opening 430 are respectively communicated with the airflow passage 40; a first opening 410 to allow passage of a first cartridge 1 into and out of housing 4, a second opening 420 to allow passage of a second cartridge 2 into and out of housing 4, and a third opening 430 to allow passage of a third cartridge 3 into and out of housing 4; a second partition wall 52 is connected to the inner wall 4a between the first opening 410 and the second opening 420, and a third partition wall 53 is connected to the inner wall 4a between the second opening 420 and the third opening 430. This design makes the first cartridge 1, the second cartridge 2 and the third cartridge 3 easy to install and replace, respectively, and makes the housing 4 compact.
As shown in fig. 2 and 3, the air filter device 90 further includes a plurality of covers 6 independently provided from each other; the plurality of covers 6 are adapted to be coupled to the housing 4 to close the first opening 410, the second opening 420, and the third opening 430, respectively. In an embodiment not shown, the number of the cover 6 is one, and the cover can cover the first opening 410, the second opening 420, and the third opening 430 at the same time.
In one embodiment, as shown in fig. 10, the first cartridge 1, the second cartridge 2, and the third cartridge 3 are each provided with a handle 7, and the handles 7 are arranged so that the first cartridge 1, the second cartridge 2, and the third cartridge 3 can be easily lifted from the housing 4.
As shown in fig. 6, 7 and 8, the first filter element 1 includes a first upper plate 11, a first lower plate 12 and a first filter element main body 13, and the first upper plate 11 and the first lower plate 12 are respectively clamped on the upper side and the lower side of the first filter element main body 13; the second filter element 2 comprises a second upper plate body 21, a second lower plate body 22 and a second filter element main body 23, wherein the second upper plate body 21 and the second lower plate body 22 are respectively clamped on the upper side and the lower side of the second filter element main body 23; the third filter element 3 includes a third upper plate 31, a third lower plate 32, and a third filter element main body 33, and the third upper plate 31 and the third lower plate 32 are respectively clamped on the upper and lower sides of the third filter element main body 33.
As shown in fig. 8, the first cartridge body 13 is waved in shape to increase the contact area with the air flow F. The second cartridge body 23 and the third cartridge body 33 may be both wavy.
As shown in fig. 9, in one embodiment, the first cartridge body 13 includes a first support layer 131 and a first filter layer 132, wherein the first support layer 131 is attached to the first filter layer 132, and the first support layer 131 is located on the upstream side of the first filter layer 132 in the flow direction of the gas flow F. The first support layer 131 has higher strength than the first filter layer 132, for example, the first support layer 131 may be made of a high strength PET nonwoven material, and the first filter layer 132 is made of a general strength PET or PP nonwoven material.
The second filter element main body 23 includes a second support layer 231, a second absorption layer 232, and a second filter layer 233, wherein the second support layer 231, the second absorption layer 232, and the second filter layer 233 are sequentially disposed in the flow direction of the air flow F and attached to each other two by two. The second support layer 231 may be made of a high-strength PET non-woven material, the second absorbent layer 232 may be made of activated carbon, and the second filter layer 233 may be made of a PET or PP non-woven material having high-efficiency filtering characteristics.
The third cartridge body 33 includes a third support layer 331 and a third filter layer 332. In the flow direction of the air flow F, the third support layer 331 and the third filter layer 332 are sequentially disposed and attached to each other.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments by the technical spirit of the present invention fall within the scope of protection defined by the claims of the present invention.
Claims (10)
1. An air filter device comprising a first filter cartridge (1) and a housing (4), an inner wall (4a) of the housing (4) defining an air flow passage (40) for allowing an air flow (F) to pass therethrough; the first filter cartridge (1) is arranged in the gas flow channel (40) to filter the gas flow (F);
characterized in that the air filter device (90) further comprises a first partition wall (51), the first partition wall (51) being convexly provided on the inner wall (4a) and closed along the circumferential direction of the housing (4), wherein an inner surface (51a) of the first partition wall (51) defines a first intermediate passage (510) within the air flow passage (40);
the first filter element (1) is disposed on the upstream side or the downstream side of the first partition wall (51) in the flow direction of the gas flow (F).
2. The air filtration device of claim 1, wherein the air filtration device (90) further comprises a second partition wall (52); the second partition wall (52) is convexly arranged on the inner wall (4a) and is closed along the circumferential direction of the shell (4), wherein the inner surface (52a) of the second partition wall (52) defines a second intermediate channel (520) in the airflow channel (40);
the second partition wall (52) is disposed on the downstream side of the first partition wall (51) in the flow direction of the gas flow (F), and the first filter element (1) is disposed on the downstream side of the first partition wall (51) and on the upstream side of the second partition wall (52).
3. An air filter device according to claim 2, characterized in that the air filter device (90) further comprises a second filter cartridge (2); the second filter element (2) is disposed on the downstream side of the second partition wall (52) in the flow direction of the gas flow (F).
4. An air filter device according to claim 3, characterized in that the air filter device (90) further comprises a third partition wall (53); the third partition wall (53) is convexly arranged on the inner wall (4a) and is closed along the circumferential direction of the shell (4), wherein the inner surface (53a) of the third partition wall (53) defines a third intermediate channel (530) in the airflow channel (40);
the third partition wall (53) is disposed on the downstream side of the second partition wall (52) in the flow direction of the gas flow (F), and the second filter element (2) is disposed on the upstream side of the third partition wall (53).
5. An air filter device according to claim 4, characterized in that the air filter device (90) further comprises a third filter cartridge (3); the third filter element (3) is disposed on the downstream side of the third partition wall (53) in the flow direction of the gas flow (F).
6. The air filter device according to claim 5, wherein the air filter device (90) further comprises a fourth partition wall (54); the fourth partition wall (54) is convexly arranged on the inner wall (4a) and is closed along the circumferential direction of the shell (4), wherein the inner surface (54a) of the fourth partition wall (54) defines a fourth intermediate channel (540) in the airflow channel (40);
the fourth partition wall (54) is provided on the downstream side of the third partition wall (53) in the flow direction of the gas flow (F), and the third filter element (3) is provided on the upstream side of the fourth partition wall (54).
7. An air filtering device according to claim 5, characterized in that said casing (4) is provided with a first opening (410), a second opening (420) and a third opening (430); the first opening (410), the second opening (420) and the third opening (430) are respectively communicated with the airflow channel (40);
said first opening (410) allowing passage of said first cartridge (1) into and out of said housing (4), said second opening (420) allowing passage of said second cartridge (2) into and out of said housing (4), said third opening (430) allowing passage of said third cartridge (3) into and out of said housing (4);
the second partition wall (52) is connected to the inner wall (4a) between the first opening (410) and the second opening (420), and the third partition wall (53) is connected to the inner wall (4a) between the second opening (420) and the third opening (430).
8. An air filter device according to claim 7, characterized in that the air filter device (90) further comprises one or more covers (6); one or more of the covers (6) are adapted to be attached to the housing (4) to close the first opening (410), the second opening (420) and the third opening (430).
9. An air filter device according to claim 5, wherein the first filter element (1) is a primary filter, the second filter element (2) is a secondary filter and the third filter element (3) is a high efficiency filter.
10. A vehicle air conditioning assembly (900) comprising an air filter device (90) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943475.9U CN211106845U (en) | 2019-11-12 | 2019-11-12 | Air filtering device and automobile air conditioner assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921943475.9U CN211106845U (en) | 2019-11-12 | 2019-11-12 | Air filtering device and automobile air conditioner assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211106845U true CN211106845U (en) | 2020-07-28 |
Family
ID=71723454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921943475.9U Active CN211106845U (en) | 2019-11-12 | 2019-11-12 | Air filtering device and automobile air conditioner assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211106845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022200203A1 (en) | 2022-01-11 | 2023-07-13 | Mahle International Gmbh | Combined bypass filter element module |
-
2019
- 2019-11-12 CN CN201921943475.9U patent/CN211106845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022200203A1 (en) | 2022-01-11 | 2023-07-13 | Mahle International Gmbh | Combined bypass filter element module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5004487A (en) | Filter assembly for protecting motor vehicle occupants from pollution | |
| US5192346A (en) | Air purifier pleated filter to stop pollution for passenger inside of the motor vehicle | |
| CN100370187C (en) | Ventilation system | |
| CN206831685U (en) | A kind of fan coil units with air-cleaning function | |
| CN211106845U (en) | Air filtering device and automobile air conditioner assembly | |
| CN207797321U (en) | A kind of new wind turbine of air conditioner with air purification | |
| CN104325862A (en) | Vehicle-mounted internal environment management system and in-vehicle environment control method | |
| CN211364218U (en) | Automobile air conditioner filtering system and automobile | |
| CN205261793U (en) | Terminal purifier of multi -functional air | |
| CN205391297U (en) | Baby's incubator with noise suppression | |
| US7748383B1 (en) | Air filters | |
| CN111780300A (en) | Negative pressure shelter cabin body | |
| CN207825885U (en) | A kind of health environment-friendly air conditioner filter | |
| CN204196659U (en) | Vehicle-mounted environment management system | |
| KR200373800Y1 (en) | ventilation system for heating | |
| KR100587313B1 (en) | air cleaning system with ventilator | |
| CN203957791U (en) | Air-conditioner in truck system air filtering installation | |
| CN213480451U (en) | Heating and ventilation structure for endoscope room | |
| CN220517936U (en) | Regeneration dehumidifying box for heating belt | |
| CN216114439U (en) | Purification type air filtration system | |
| CN205939545U (en) | Engine discharges system of toilet that experimental filter paper was weighed | |
| CN216833112U (en) | Novel return air filtering structure of automobile air conditioner | |
| CN210511960U (en) | Novel intelligent combined type purification air-conditioning air supply unit | |
| CN205191790U (en) | Terminal purifier of multi -functional air of efficient | |
| CN217926111U (en) | Air filter and car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |