CN209672553U - Fresh air tube assembly and air conditioner - Google Patents
Fresh air tube assembly and air conditioner Download PDFInfo
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- CN209672553U CN209672553U CN201920444743.6U CN201920444743U CN209672553U CN 209672553 U CN209672553 U CN 209672553U CN 201920444743 U CN201920444743 U CN 201920444743U CN 209672553 U CN209672553 U CN 209672553U
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Abstract
The utility model provides a kind of fresh air tube assembly and air conditioner, air conditioner includes the fresh air tube assembly being connected between air conditioner indoor unit and air-conditioner outdoor unit, fresh air tube assembly includes fresh wind tube, condensate pipe and refrigerant pipe group, and condensate pipe and refrigerant pipe group are arranged in fresh wind tube；Fresh wind tube includes outer tube wall and partition wall, and partition wall is arranged in the pipeline space of outer tube wall, and pipeline space is divided into mutually independent first passage and second channel by partition wall；Condensate pipe is placed in first passage, and refrigerant pipe group is placed in second channel.After pipeline space is divided into mutually independent first passage and second channel by partition wall, condensate pipe and refrigerant pipe group are located at different spaces, it will not influence each other between condensate pipe and refrigerant pipe, optimization stringing, installation difficulty reduce and be suitable for more occasions because of simple installation.
Description
Technical field
The utility model relates to air conditioner manufacturing technology fields, and in particular to fresh air tube assembly and sky in a kind of air conditioner
Adjust device.
Background technique
The leakproofness of building is improved with the universal use of air conditioner, and for energy conservation, air conditioner reduces the external world as far as possible
Fresh air volume, so as to cause the raising of the gas concentrations such as indoor PM2.5 concentration, CO2, the decline of indoor oxygen concentration, indoor air quality
It is deteriorated.Therefore, if to a certain amount of fresh air of indoor offer in air-conditioning use process indoor air quality can be improved, in turn
Improve the comfort of indoor environment.
A kind of fresh air tube assembly of existing air conditioner includes rectangle fresh wind tube and the condensed water that is arranged in rectangle fresh wind tube
Pipe, refrigerant pipe and condensate pipe heat exchange fin, condensate pipe and refrigerant pipe are supported on the lower part of rectangle fresh wind tube by bracket, more
A condensate pipe heat exchange fin is equidistant to be mounted on outside condensate pipe.Under air conditioner refrigeration mode, outside air is new from rectangle
Air hose is sucked through condensate pipe heat exchange fin and exchanges heat with condensed water, makes to reach indoor fresh air closer to Indoor Temperature
Degree improves comfort level.
Existing this kind of fresh air tube assembly the problem is that, fresh wind tube structure is more complex and volume is larger, and there are stringings
The big problem of installation difficulty, applicability are poor；The condensate pipe being disposed adjacent influences each other with refrigerant pipe, influences to change fresh air
Thermal effect.
Utility model content
The first of the utility model is designed to provide that a kind of installation is simple and the fresh air tube assembly of strong applicability.
The second of the utility model is designed to provide that a kind of installation is simple and the air conditioner of strong applicability.
The fresh air tube assembly of the offer of the first mesh of the utility model includes fresh wind tube, condensate pipe and refrigerant pipe group, condensation
Water pipe and refrigerant pipe group are arranged in fresh wind tube；Fresh wind tube includes outer tube wall and partition wall, and outer tube wall is arranged in partition wall
In pipeline space, and pipeline space is divided into mutually independent first passage and second channel by partition wall；First passage and
Two channels extend between the extension both ends of fresh wind tube, first passage the extension both ends of fresh wind tube be respectively provided with air inlet and
Air outlet；Condensate pipe is placed in first passage, and refrigerant pipe group is placed in second channel.
By above scheme as it can be seen that the space that partition wall will be far from condensate pipe is divided into second channel, enter from air inlet
Air to first passage more fully exchanges heat with condensate pipe, and heat transfer effect is guaranteed；Partition wall is by pipeline space
After being divided into mutually independent first passage and second channel, condensate pipe and refrigerant pipe group are located at different spaces, condensed water
It will not influence each other between pipe and refrigerant pipe, structure is simple, optimize stringing and installation difficulty reduction is suitable for fresh air tube assembly
More occasions.
Further embodiment is to be provided with lug boss on the outer surface of condensate pipe.
Therefore the lug boss of condensate pipe outer surface can increase the heat exchange area between condensed water and fresh air, be promoted
Heat transfer effect.
Further embodiment is that condensate pipe is screwed pipe, and the outer surface of condensate pipe has helical form convex ribs.
Therefore the helical form convex ribs of condensate pipe outer surface can increase the heat exchange area between condensed water and fresh air,
Helical form convex ribs play a part of to enhance flow disturbance simultaneously, promote heat transfer effect.
Another further embodiment is that condensate pipe is bellows, and lug boss is continuous cyclic annular convex ribs.
Therefore lug boss is that continuous cyclic annular convex ribs can increase the heat exchange area between condensed water and fresh air, is promoted
Heat transfer effect.
Further embodiment is that fresh air tube assembly further includes the first filter screen that air inlet is arranged in.
Therefore first filter screen setting can prevent dust, winged insect and leaf etc. enter first passage in.
Further embodiment is, outer tube wall is provided with peripheral openings in one end close to air inlet, and peripheral openings are from first
The periphery in channel is connected to first passage.
Therefore peripheral openings are added to increase fresh air intake, improve indoor air-changing efficiency.
Further embodiment is that fresh air tube assembly further includes the second filter screen that periphery opening is arranged in.
Therefore second the setting of filter screen can to prevent dust, winged insect and leaf etc. from from peripheral openings entering first logical
In road.
Further embodiment is that outer tube wall is provided with periphery air inlet hole group, periphery air inlet hole in one end close to air inlet
Group is connected to first passage from the periphery of first passage.
Therefore in the periphery of outer tube wall, air inlet hole group is set, guarantee fresh air feeding amount, barrier winged insect and exotic and
Increase tube wall strength.
Further embodiment is, on the cross section of fresh wind tube, the first sectional area of first passage is greater than second channel
Second sectional area.
Therefore the bigger first passage of sectional area is set to guarantee new wind flow, sectional area smaller second is set
Channel be more convenient for refrigerant pipe group stringing installation.
Further embodiment is that on the cross section of fresh wind tube, partition wall is along linear extension.
Another further embodiment is, on the cross section of fresh wind tube, partition wall bending extends or bending extends.
Further scheme is that on the cross section of fresh wind tube, partition wall is in " Qian " shape.
Another further embodiment is that on the cross section of fresh wind tube, partition wall is trapezoidal.
Therefore the cross section profile by changing partition wall can meet different wiring requirements.
Another further embodiment is, on the cross section of fresh wind tube, partition wall is in " W " shape.
Therefore cross section is convenient for being arranged connecting tube group in V-groove, V-groove is formed on the partition wall of " W " shape
With installation.
Further embodiment is that fresh wind tube is round tube.
Therefore wall brill circular hole difficulty is minimum, fresh wind tube is that round tube can be further improved being applicable in for fresh air tube assembly
Property and reduce fresh air tube assembly installation difficulty.
The air conditioner of the offer of the second mesh of the utility model includes air conditioner indoor unit, air-conditioner outdoor unit and is connected to air conditioning chamber
Fresh air tube assembly between interior machine and air-conditioner outdoor unit, fresh air tube assembly use above-mentioned fresh air tube assembly.
By above scheme as it can be seen that in the fresh air tube assembly of air conditioner, fresh wind tube is mutually independent the by divider walls
One channel and second channel, condensate pipe and refrigerant pipe group are located at different spaces, therefore between condensate pipe and refrigerant pipe not
It can influence each other, optimization stringing, installation difficulty reduce and installation simply makes fresh air tube assembly be suitable for more occasions.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model fresh air tube assembly first embodiment.
Fig. 2 is the radial section scheme of installation of the utility model fresh air tube assembly first embodiment.
Fig. 3 is the scheme of installation of the utility model fresh air tube assembly first embodiment.
Fig. 4 is the cross-sectional view of the utility model fresh air tube assembly second embodiment.
Fig. 5 is the cross-sectional view of the utility model fresh air tube assembly 3rd embodiment.
Fig. 6 is the cross-sectional view of fresh wind tube in the utility model fresh air tube assembly fourth embodiment.
Fig. 7 is the cross-sectional view of fresh wind tube in the 5th embodiment of the utility model fresh air tube assembly.
Fig. 8 is the structural schematic diagram of condensate pipe in the utility model fresh air tube assembly sixth embodiment.
Fig. 9 is the structural schematic diagram of condensate pipe in the 7th embodiment of the utility model fresh air tube assembly.
Figure 10 is the structural schematic diagram of condensate pipe in the 8th embodiment of the utility model fresh air tube assembly.
Specific embodiment
Fresh air tube assembly first embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the cross-sectional view of the utility model fresh air tube assembly first embodiment, and Fig. 2 is
The radial section scheme of installation of the utility model fresh air tube assembly first embodiment.Fresh air tube assembly provided by the utility model
For the fresh air tube assembly being connected in air conditioner between air conditioner indoor unit and air-conditioner outdoor unit, fresh air tube assembly include fresh wind tube 1,
Condensate pipe 2 and refrigerant pipe group, refrigerant pipe group include the first refrigerant pipe 31 and the second refrigerant pipe 32, condensate pipe 2 and refrigerant pipe
Group is arranged in fresh wind tube 1.Fresh wind tube 1 is interspersed on wall 900 and extends between indoor and outdoors, and fresh wind tube 1 prolongs
The outside of wall 900 is stretched out in 111 one end of air inlet for stretching first end, to interact with outside air.The extension of fresh wind tube 1
Two ends are then connect with air conditioner indoor unit, and the first refrigerant pipe 31 is connect with air conditioner indoor unit, the second refrigerant pipe 32 and air-conditioner outdoor unit
Connection, condensate pipe 2 are connected at the condensate water discharging component of air conditioner indoor unit.
Fresh wind tube 1 is round tube, and fresh wind tube 1 includes that cross section is the separation of circular outer tube wall 11 and cross section in "-" type
Wall 12, partition wall 12 are arranged horizontally in the pipeline space 100 of outer tube wall 11, and pipeline space 100 is divided by partition wall 12
Mutually independent first passage 101 and second channel 102；First passage 101 and second channel 102 extend fresh wind tube 1
Extend between both ends, first passage 101 is located at the underface of second channel 102, since first passage 101 is used for for new distinguished and admirable
It is logical, therefore the first sectional area of first passage 101 is greater than the second sectional area of second channel 102, to guarantee air intake.
As the circulation passage of fresh air, first passage 101 is respectively provided with 111 He of air inlet at the extension both ends of fresh wind tube 1
Air outlet (not shown)；Condensate pipe 2 is placed on the central location in first passage 101 and being located at first passage 101, the
One refrigerant pipe 31 and the second refrigerant pipe 32 are then both placed in second channel 102.Condensate pipe 2 is screwed pipe, condensate pipe 2
Outer surface has helical form convex ribs 21.The helical form convex ribs 21 of 2 outer surface of condensate pipe can increase between condensed water and fresh air
Heat exchange area, while helical form convex ribs 21 can play enhancing flow disturbance, promote heat transfer effect.
It is the scheme of installation of the utility model fresh air tube assembly first embodiment in conjunction with Fig. 3, Fig. 3.Outer tube wall 11 is leaning on
One end of nearly air inlet 111 is provided with peripheral openings 112, and peripheral openings 112 are connected to first from the periphery of first passage 101 and lead to
Road 101.Fresh air tube assembly further includes the first filter screen 41 blocked at air inlet 111 and blocks at peripheral openings 112
Second filter screen 42.As it can be seen that the second filter screen 42 blocked in peripheral openings 112 is fully located at wall body on the visual angle of Fig. 3
Other than 900.The setting of first filter screen 41 and the second filter screen 42 can prevent dust, winged insect and leaf etc. from entering first passage
In 101, and the first filter screen 41 and the second filter screen 42 all have rectangular array bracket and are mounted on rectangular array bracket
Muti-piece rectangle filtering net plate can guarantee the mechanical strength of the first filter screen 41 and the second filter screen 42 using rectangular array bracket.
The space that partition wall 12 will be far from condensate pipe 2 is divided into second channel 102, and second channel 102 is cold for arranging
Other connecting tube groups other than condensate pipe 2, such as refrigerant pipe group, convenient for the stringing of connecting tube group, fresh air tube assembly installation difficulty drops
It is low, and avoid and influence each other between refrigerant pipe group and condensate pipe 2 and influence heat transfer effect.Condensate pipe 2 is arranged in first
The centre in channel 101 enters the fresh air of first passage 101 from air inlet 111 and peripheral openings 112 and has helical form convex
The condensate pipe 2 of muscle is sufficiently carried out heat exchange, and heat transfer effect is guaranteed；Fresh air tube assembly provided by the invention is because of structure letter
It is single, small in size, quick for installation and optimization stringing and be suitable for more occasions.
Fresh air tube assembly second embodiment
Referring to fig. 4, Fig. 4 is the cross-sectional view of the utility model fresh air tube assembly second embodiment.Fresh air tube assembly
In first embodiment, Fig. 1 is seen, 12 cross section of partition wall is in "-" type, and partition wall 12 is horizontally disposed, thus by pipeline space
100 are divided into the first passage 101 and second channel 102 arranged from bottom to top.
There are also more set-up modes for partition wall, and in the present embodiment, on the cross section of fresh wind tube 5, partition wall 52 is in
" Qian " shape, partition wall 52 have the first side wall body 521, second side wall body 522 and bottom wall body 523, the extension of the first side wall body 521
The inner wall of first end and outer tube wall 51 is tightly connected, the extension of the extensions second end of the first side wall body 521 and bottom wall body 523 the
One end is tightly connected, and the extension second end of bottom wall body 523 and the extension first end of second side wall body 522 are tightly connected, second side
The extension second end of wall body 522 and the inner wall of outer tube wall 51 are tightly connected, and bottom wall body 523 is vertically arranged.
The cross section for the second channel 502 being separated to form by partition wall 52 is close to rectangle, and first passage 501 and second leads to
Left and right arrangement between road 502, the present embodiment fresh wind tube 5 is able to satisfy the demand that left and right separates wiring, while section is in " Qian " shape
Partition wall 52 all has the smooth inner surface that can be supported or position to refrigerant pipe group in three directions.
Fresh air tube assembly 3rd embodiment
It is the cross-sectional view of the utility model fresh air tube assembly 3rd embodiment referring to Fig. 5, Fig. 5.With fresh wind tube
Unlike one embodiment, peripheral openings are not provided on the present embodiment China and foreign countries tube wall 61, but close to air inlet on outer tube wall 61
Mouthful place be provided with periphery air inlet hole group 63, the circumferential direction of multiple periphery air inlet holes 631 of periphery air inlet hole group 63 along outer tube wall 61
It is arranged on outer tube wall 61, multiple periphery air inlet holes 631 are connected to first passage 601 from the periphery of first passage 601.
In the present embodiment, on the cross section of fresh wind tube 6, partition wall 62 is trapezoidal, and partition wall 62 has the first side wall body
621, second side wall body 622 and bottom wall body 623.On the cross section of fresh wind tube 6, the extension first end of the first side wall body 621 with
The inner wall of outer tube wall 61 is tightly connected, and the extension second end of the first side wall body 621 and the extension first end of bottom wall body 623 seal
Connection, the extension second end of bottom wall body 623 and the extension first end of second side wall body 622 are tightly connected, second side wall body 622
The inner wall for extending second end and outer tube wall 61 is tightly connected；Bottom wall body 623 is horizontally disposed.
On the cross section of fresh wind tube 6, partition wall 62 is trapezoidal, the first side wall body 621 and the symmetrical cloth of second side wall body 622
It sets, there is the first spacing w1 in the one end being connected with outer tube wall 61 between the first side wall body 621 and second side wall body 622, the
There is the second spacing w2 in the one end being connected with bottom wall body 623 between side wall body 621 and second side wall body 622, between second
It is bigger than the first spacing w1 away from w2, therefore the second channel 602 that pipeline space Formation cross-section under the separation of partition wall 62 is trapezoidal,
And since the first spacing w1 is smaller, the part that outer tube wall 61 connect cooperation with partition wall 62 accounts for smaller, outer tube wall in the circumferential
61 bigger a part are centered around outside first passage 601, therefore more periphery air inlet holes 631 can be arranged on outer tube wall 61, with
Increase intake.
Fresh air tube assembly fourth embodiment
It is the cross-sectional view of fresh wind tube in the utility model fresh air tube assembly fourth embodiment referring to Fig. 6, Fig. 6.In
The cross section of fresh wind tube 7, partition wall 72 continuously bend extension, and the over-hang part 721 and over-hang part 722 of partition wall 72 in " W " shape
Towards first passage 701, therefore after partition wall 72 is separated pipeline space, V-groove is formed in second channel 702
703 and V-groove 704, refrigerant pipe 73 and refrigerant pipe 74 be located in V-groove 703 and V-groove 704, V-groove can be to round tube
Body effective position advanced optimizes stringing and simplifies installation.
The 5th embodiment of fresh air tube assembly
It is the cross-sectional view of fresh wind tube in the 5th embodiment of the utility model fresh air tube assembly referring to Fig. 7, Fig. 7.This
In embodiment, on the cross section of fresh wind tube 8, partition wall 82 is extended in circular arc, separation of the second channel 802 in partition wall 82
Become circular pipe down.
Fresh air tube assembly sixth embodiment
In the present invention, condensate pipe can also be that outer surface has other tube bodies of lug boss in addition to using screwed pipe.Ginseng
See Fig. 8, Fig. 8 is the structural schematic diagram of condensate pipe in the utility model fresh air tube assembly sixth embodiment, cold in the present embodiment
The outer surface of condensate pipe 91 is provided with continuous circular ring shape convex ribs 911, and the outer surface of circular ring shape convex ribs 911 is arc surface.
The 7th embodiment of fresh air tube assembly
It is the structural schematic diagram of condensate pipe in the 7th embodiment of the utility model fresh air tube assembly referring to Fig. 9, Fig. 9, this
The outer surface of condensate pipe 92 is provided with continuous circular ring shape convex ribs 921 in embodiment, in the radial projection of condensate pipe 91,
It is protruded in triangular shape the periphery of circular ring shape convex ribs 921.
The 8th embodiment of fresh air tube assembly
It is the structural schematic diagram of condensate pipe in the 8th embodiment of the utility model fresh air tube assembly referring to Figure 10, Figure 10,
The multiple cylindrical bodies 931 of protrusion on the outer surface of condensate pipe 93 in the present embodiment, each column cylindrical body 931 include being arranged in condensed water
The multiple cylindrical bodies 931 of pipe 93 extended between both ends, multiple row cylindrical body 931 are arranged circumferentially along condensate pipe 93.
Finally it is emphasized that the above is only the preferred embodiment of the present invention, it is not limited to this reality
With novel, for those skilled in the art, the utility model can have various change and change, all in the utility model
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done should be included in the protection model of the utility model
Within enclosing.
Claims (16)
1. fresh air tube assembly, including fresh wind tube, condensate pipe and refrigerant pipe group, the condensate pipe and the refrigerant pipe group are all provided with
It sets in the fresh wind tube；
It is characterized by:
The fresh wind tube includes outer tube wall and partition wall, and the partition wall is arranged in the pipeline space of the outer tube wall, and institute
It states partition wall and the pipeline space is divided into mutually independent first passage and second channel；
The first passage and the second channel extend between the extension both ends of the fresh wind tube, and first passage is described
The extension both ends of fresh wind tube are respectively provided with air inlet and air outlet；
The condensate pipe is placed in the first passage, and the refrigerant pipe group is placed in the second channel.
2. fresh air tube assembly according to claim 1, it is characterised in that:
Lug boss is provided on the outer surface of the condensate pipe.
3. fresh air tube assembly according to claim 2, it is characterised in that:
The condensate pipe is screwed pipe, and the lug boss is helical form convex ribs.
4. fresh air tube assembly according to claim 2, it is characterised in that:
The condensate pipe is bellows, and the lug boss is continuous cyclic annular convex ribs.
5. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
The fresh air tube assembly further includes the first filter screen that the air inlet is arranged in.
6. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
The outer tube wall is provided with peripheral openings in one end close to the air inlet, and the peripheral openings are from the first passage
Periphery be connected to the first passage.
7. fresh air tube assembly according to claim 6, it is characterised in that:
The fresh air tube assembly further includes the second filter screen being arranged at the peripheral openings.
8. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
The outer tube wall is provided with periphery air inlet hole group in one end close to the air inlet, and the periphery air inlet hole group is from described
The periphery of first passage is connected to the first passage.
9. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
On the cross section of the fresh wind tube, the first sectional area of the first passage is greater than the second section of the second channel
Product.
10. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
On the cross section of the fresh wind tube, the partition wall is along linear extension.
11. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
On the cross section of the fresh wind tube, the partition wall bending extends or bending extends.
12. fresh air tube assembly according to claim 11, it is characterised in that:
On the cross section of the fresh wind tube, the partition wall is in " Qian " shape.
13. fresh air tube assembly according to claim 11, it is characterised in that:
On the cross section of the fresh wind tube, the partition wall is trapezoidal.
14. fresh air tube assembly according to claim 11, it is characterised in that:
On the cross section of the fresh wind tube, the partition wall is in " W " shape.
15. fresh air tube assembly according to claim 1 or 2, it is characterised in that:
The fresh wind tube is round tube.
16. air conditioner, including air conditioner indoor unit, air-conditioner outdoor unit and it is connected to the air conditioner indoor unit and the air-conditioner outdoor unit
Between fresh air tube assembly；
It is characterized by:
The fresh air tube assembly uses the described in any item fresh air tube assemblies of the claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444743.6U CN209672553U (en) | 2019-04-02 | 2019-04-02 | Fresh air tube assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920444743.6U CN209672553U (en) | 2019-04-02 | 2019-04-02 | Fresh air tube assembly and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209672553U true CN209672553U (en) | 2019-11-22 |
Family
ID=68573665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920444743.6U Active CN209672553U (en) | 2019-04-02 | 2019-04-02 | Fresh air tube assembly and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209672553U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781104A (en) * | 2020-12-24 | 2021-05-11 | 珠海格力电器股份有限公司 | Fresh air assembly, air conditioning system and control method of air conditioning system |
| CN113932300A (en) * | 2021-10-08 | 2022-01-14 | 青岛海尔空调器有限总公司 | Fresh air conditioner control method and device and fresh air conditioner |
| CN114543180A (en) * | 2022-02-18 | 2022-05-27 | 北京小米移动软件有限公司 | Machine and fresh air conditioning system in fresh air conditioning |
| CN114811734A (en) * | 2022-03-01 | 2022-07-29 | 青岛海尔空调器有限总公司 | Fresh air pipe and air conditioner |
-
2019
- 2019-04-02 CN CN201920444743.6U patent/CN209672553U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781104A (en) * | 2020-12-24 | 2021-05-11 | 珠海格力电器股份有限公司 | Fresh air assembly, air conditioning system and control method of air conditioning system |
| CN113932300A (en) * | 2021-10-08 | 2022-01-14 | 青岛海尔空调器有限总公司 | Fresh air conditioner control method and device and fresh air conditioner |
| CN114543180A (en) * | 2022-02-18 | 2022-05-27 | 北京小米移动软件有限公司 | Machine and fresh air conditioning system in fresh air conditioning |
| CN114811734A (en) * | 2022-03-01 | 2022-07-29 | 青岛海尔空调器有限总公司 | Fresh air pipe and air conditioner |
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