A fresh air system and an air conditioner

Abstract

The present invention provides a fresh air system, comprising: a housing, and an air chamber, a conversion air duct and a wind valve mechanism disposed within the housing; an air inlet, a first conversion port, an air outlet, a second conversion port, a fan and a filtering mechanism are disposed within the air chamber, the air inlet and the first conversion port are both communicated with the air inlet end of the fan through the filtering mechanism, and the air outlet and the second conversion port are both communicated with the air outlet end of the fan; a fresh air inlet is disposed within the conversion air duct, and the conversion channel is communicated with the first conversion port and the second conversion port; the wind valve assembly is connected to the air inlet, the first conversion port, the air outlet and the second conversion port. The fresh air system of the present invention adopts a double-flow conversion air duct design to realize the integration of air intake and exhaust of the fresh air machine, and realizes the air duct switching through the wind valve assembly, so that the fresh air assembly realizes various functions of sucking outdoor fresh air, discharging indoor polluted air and purifying and circulating indoor air.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a fresh air system and an air conditioner. Background Art

[0002] In the existing fresh air system air conditioner, the fresh air component provided on the air conditioner body can only suck fresh air from the outside into the room. To discharge the indoor polluted air to the outside, a separate exhaust component needs to be added and combined with the indoor air conditioner to achieve the functions of air intake and exhaust. Installing the separate exhaust component on the outdoor side requires an additional hole to be drilled through the exhaust duct in the customer's room, resulting in the need to drill 2 through-wall holes. Summary of the Invention

[0003] An object of the present invention is to overcome the deficiencies in the prior art and provide a fresh air system and an air conditioner.

[0004] An embodiment of the present invention provides a fresh air system, including: a housing, and an air chamber, a conversion air duct, and a wind valve mechanism provided in the housing;

[0005] An air inlet, a first conversion port, an air outlet, a second conversion port, a fan, and a filtering mechanism are provided in the air chamber. Both the air inlet and the first conversion port are communicated with the air inlet end of the fan through the filtering mechanism, and both the air outlet and the second conversion port are communicated with the air outlet end of the fan;

[0006] A fresh air port is provided in the conversion air duct, and the conversion channel is communicated with the first conversion port and the second conversion port;

[0007] The wind valve assembly is connected to the air inlet, the first conversion port, the air outlet, and the second conversion port, and is used to open and close the air inlet, the first conversion port, the air outlet, and the second conversion port.

[0008] Compared with the prior art, the fresh air system of the present invention adopts a double-flow conversion air duct design to realize the integration of air intake and exhaust of the fresh air machine. The air duct in the fresh air component is switched through the wind valve assembly. After switching, different air flows can be realized in the conversion air duct, so that a fresh air component can realize multiple functions such as sucking outdoor fresh air, discharging indoor polluted air, and purifying and circulating indoor air.

[0009] Further, the wind valve mechanism includes a first wind valve assembly and a second wind valve assembly. The first wind valve assembly is used to open and close the air inlet and the first conversion port, and the second wind valve assembly is used to open and close the air outlet and the second conversion port; wherein, the first wind valve assembly includes a first baffle plate rotatably connected to the housing and a first power unit for driving the first baffle plate to rotate. The first baffle plate is located between the air inlet and the first conversion port, and after the first baffle plate rotates, it closes the air inlet or the first conversion port.

[0010] Further, the air valve mechanism includes a first air valve assembly and a second air valve assembly. The first air valve assembly is used to open and close the air inlet and the first conversion port, and the second air valve assembly is used to open and close the air outlet and the second conversion port. Wherein, the second air valve assembly includes a second baffle rotatably connected to the housing and a second power unit for driving the second baffle to rotate. The second baffle is located between the air outlet and the second conversion port, and after the second baffle rotates, it closes the air outlet or the second conversion port.

[0011] Further, the air valve mechanism includes a first air valve assembly and a second air valve assembly. The first air valve assembly is used to open and close the air inlet and the first conversion port, and the second air valve assembly is used to open and close the air outlet and the second conversion port. Wherein, the first air valve assembly includes a first baffle rotatably connected to the housing and a first power unit for driving the first baffle to rotate. The first baffle is located between the air inlet and the first conversion port, and after the first baffle rotates, it closes the air inlet or the first conversion port; the second air valve assembly includes a second baffle rotatably connected to the housing and a second power unit for driving the second baffle to rotate. The second baffle is located between the air outlet and the second conversion port, and after the second baffle rotates, it closes the air outlet or the second conversion port.

[0012] Further, a sealing connection portion is provided at the edge of at least one of the air inlet and the first conversion port. After the first baffle rotates, it abuts against the sealing connection portion to seal the air inlet or the first conversion port.

[0013] Further, a sealing connection portion is provided at the edge of at least one of the air outlet and the second conversion port. After the first baffle rotates, it abuts against the sealing connection portion to seal the air outlet or the second conversion port.

[0014] Further, the air chamber includes a blower chamber and a filter chamber that communicate with each other. The air inlet, the first conversion port, and the filtering mechanism are arranged in the filter chamber, and the air outlet, the second conversion port, and the blower are arranged in the blower chamber.

[0015] Further, the filtering mechanism is detachably connected to the inner wall of the air chamber.

[0016] Further, an installation groove is provided in the air chamber, and the filtering mechanism is snapped into the installation groove.

[0017] An embodiment of the present invention provides an air conditioner, including: an air conditioner main body, a temperature adjustment device arranged in the air conditioner main body, and a fresh air system as described above arranged in the air conditioner main body.

[0018] Further, the fresh air inlet is communicated to the back or bottom of the air conditioner main body.

[0019] To better understand the present invention, the specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. Description of the Drawings

[0020] Figure 1 For Figure 1 is the exploded view of the fresh air system of the first embodiment of the present invention;

[0021] Figure 2 is the structural schematic diagram of the fresh air system of the first embodiment of the present invention in the fresh air mode;

[0022] Figure 3 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the fresh air mode Figure 1 ;

[0023] Figure 4 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the fresh air mode Figure 2 ;

[0024] Figure 5 is the structural schematic diagram of the fresh air system of the first embodiment of the present invention in the exhaust air mode;

[0025] Figure 6 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the exhaust air mode Figure 1 ;

[0026] Figure 7 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the exhaust air mode Figure 2 ;

[0027] Figure 8 is the structural schematic diagram of the fresh air system of the first embodiment of the present invention in the indoor purification mode;

[0028] Figure 9 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the indoor purification mode Figure 1 ;

[0029] Figure 10 is the partial cross-sectional view of the fresh air system of the first embodiment of the present invention in the indoor purification mode Figure 2 ;

[0030] Figure 11 is the exploded view of the fresh air system of the second embodiment of the present invention;

[0031] Figure 12 is the structural schematic diagram of the fresh air system of the second embodiment of the present invention in the fresh air mode;

[0032] Figure 13 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in fresh air mode Figure 1 ;

[0033] Figure 14 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in fresh air mode Figure 2 ;

[0034] Figure 15 Schematic structural diagram of the fresh air system according to Embodiment 2 of the present invention in exhaust mode;

[0035] Figure 16 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in exhaust mode Figure 1 ;

[0036] Figure 17 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in exhaust mode Figure 2 ;

[0037] Figure 18 Schematic structural diagram of the fresh air system according to Embodiment 2 of the present invention in indoor purification mode;

[0038] Figure 19 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in indoor purification mode Figure 1 ;

[0039] Figure 20 Partial cross-section of the fresh air system according to Embodiment 2 of the present invention in indoor purification mode Figure 2 ;

[0040] Figure 21 Exploded view of the fresh air system according to Embodiment 3 of the present invention.

[0041] Explanation of reference numerals:

[0042] 10. Housing; 11. First outer shell; 12. Second outer shell; 20. Air chamber; 21. Air inlet; 22. First conversion port; 23. Air outlet; 24. Second conversion port; 25. Fan; 26. Filter mechanism; 27. Sealed connection part; 28. Fan chamber; 29. Filter chamber; 291. Support platform; 292. Fan connection port; 30. Conversion air duct; 31. Fresh air inlet; 41. First baffle; 42. First power unit; 43. Second baffle; 44. Second power unit. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Embodiment 1:

[0045] Please refer to Figure 1 , which is an exploded view of the fresh air system according to Embodiment 1 of the present invention. The fresh air system includes: a housing 10, and an air chamber 20, a conversion air duct 30, and a wind valve mechanism provided in the housing 10.

[0046] An air inlet 21, a first conversion port 22, an air outlet 23, a second conversion port 24, a fan 25, and a filtering mechanism 26 are provided in the air chamber 20. Both the air inlet 21 and the first conversion port 22 are communicated with the air inlet end of the fan 25 through the filtering mechanism 26, and both the air outlet 23 and the second conversion port 24 are communicated with the air outlet end of the fan 25. A fresh air inlet 31 is provided in the conversion air duct 30, and the conversion channel is communicated with the first conversion port 22 and the second conversion port 24. The wind valve assembly is connected to the air inlet 21, the first conversion port 22, the air outlet 23, and the second conversion port 24, and is used to open and close the air inlet 21, the first conversion port 22, the air outlet 23, and the second conversion port 24. By controlling the air inlet 21, the first conversion port 22, the air outlet 23, and the second conversion port 24 by the wind valve, the fresh air system can achieve multiple working modes such as a fresh air mode, an exhaust mode, and an indoor purification mode. Among them, the fresh air inlet 31 is communicated with the outside, and both the air outlet 23 and the air inlet 21 are communicated with the inside.

[0047] Please also refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 is a schematic structural diagram of the fresh air system according to Embodiment 1 of the present invention in the fresh air mode, Figure 3 is a partial cross-section of the fresh air system according to Embodiment 1 of the present invention in the fresh air mode Figure 1 , Figure 4 is a partial cross-section of the fresh air system according to Embodiment 1 of the present invention in the fresh air mode Figure 2 , when the fresh air system is in the fresh air mode working state, the wind valve mechanism closes the air inlet 21, closes the second conversion port 24, opens the first conversion port 22 and the air outlet 23. After the fan 25 operates, the fresh air outside sequentially passes through the fresh air inlet 31, the conversion air duct 30, and the first conversion port 22 and then enters the air chamber 20, and then sequentially passes through the filtering mechanism 26 and the fan 25 and is discharged from the air outlet 23 to the inside, thereby realizing the intake of fresh air into the room.

[0048] Please refer to Figure 5 、 Figure 6 and Figure 7 , Figure 5 which is a schematic structural diagram of the fresh air system according to the first embodiment of the present invention in the exhaust mode, Figure 6 is a partial cross-section of the fresh air system according to the first embodiment of the present invention in the exhaust mode Figure 1 , Figure 7 is a partial cross-section of the fresh air system according to the first embodiment of the present invention in the exhaust mode Figure 2 When the fresh air system is in the working state of the exhaust mode, the air valve mechanism closes the first conversion port 22, closes the air outlet 23, opens the air inlet 21, opens the second conversion port 24. After the fan 25 operates, the polluted air in the room enters the air chamber 20 from the air inlet 21, then sequentially passes through the filtering mechanism 26 and the fan 25, and then enters the conversion air duct 30 from the second conversion port 24. Then the indoor polluted air is discharged to the outside from the fresh air outlet 31, thereby realizing the discharge of the indoor dirty air to the outside.

[0049] Please refer to Figure 8 、 Figure 9 and Figure 10 , Figure 8 which is a schematic structural diagram of the fresh air system according to the first embodiment of the present invention in the indoor purification mode, Figure 9 is a partial cross-section of the fresh air system according to the first embodiment of the present invention in the indoor purification mode Figure 1 , Figure 10 is a partial cross-section of the fresh air system according to the first embodiment of the present invention in the indoor purification mode Figure 2 When the fresh air system is in the working state of the indoor purification mode, the air valve mechanism closes the first conversion port 22 and the second conversion port 24, opens the air inlet 21 and the air outlet 23. After the fan 25 operates, the indoor air enters the air chamber 20 from the air inlet 21, then sequentially passes through the filtering mechanism 26 and the fan 25, and then is discharged to the indoor from the air outlet 23, and the indoor air is purified through the filtering mechanism 26.

[0050] It should be noted that the air valve mechanism can be designed according to actual needs. For example, the opening and closing of the air inlet 21, the first conversion port 22, the air outlet 23, and the second conversion port 24 can be individually controlled by 4 valves. In some alternative embodiments, the air valve mechanism includes a first air valve assembly and a second air valve assembly. The first air valve assembly is used to open and close the air inlet 21 and the first conversion port 22, and the second air valve assembly is used to open and close the air outlet 23 and the second conversion port 24. Among them, the first air valve assembly includes a first baffle 41 rotatably connected to the housing 10 and a first power unit 42 for driving the rotation of the first baffle 41. The first baffle 41 is located between the air inlet 21 and the first conversion port 22. After the first baffle 41 rotates, it closes the air inlet 21 or the first conversion port 22, so that the first baffle 41 can alternatively close the air inlet 21 or the first conversion port 22. Because in the above-mentioned fresh air mode, exhaust air mode, and indoor purification mode, either the air inlet 21 or the first conversion port 22 is closed and the other is open. Therefore, the opening and closing control of these two ports, namely the air inlet 21 and the first conversion port 22, can be achieved by one baffle, which is conducive to quickly realizing the switching of the air duct and saving costs. And at this time, the second air valve assembly can be two valves that respectively control the air outlet 23 and the second conversion port 24 in a one-to-one correspondence.

[0051] In addition, in some alternative embodiments, the second air valve assembly can also include a second baffle 43 rotatably connected to the housing 10 and a second power unit 44 for driving the rotation of the second baffle 43. The second baffle 43 is located between the air outlet 23 and the second conversion port 24. After the second baffle 43 rotates, it closes the air outlet 23 or the second conversion port 24. So that the first baffle 41 can alternatively close the air outlet 23 or the second conversion port 24. Because in the above-mentioned fresh air mode, exhaust air mode, and indoor purification mode, either the air outlet 23 or the second conversion port 24 is closed and the other is open. Therefore, the opening and closing control of these two ports, namely the air outlet 23 and the second conversion port 24, can be achieved by one baffle, which is conducive to quickly realizing the switching of the air duct and saving costs. And at this time, the first air valve assembly can be two valves that respectively control the air outlet 23 and the second conversion port 24 in a one-to-one correspondence.

[0052] In addition, in some alternative embodiments, the first air valve assembly includes a first baffle 41 rotatably connected to the housing 10 and a first power unit 42 for driving the rotation of the first baffle 41. The first baffle 41 is located between the air inlet 21 and the first conversion port 22. After the first baffle 41 rotates, it closes the air inlet 21 or the first conversion port 22. The second air valve assembly includes a second baffle 43 rotatably connected to the housing 10 and a second power unit 44 for driving the rotation of the second baffle 43. The second baffle 43 is located between the air outlet 23 and the second conversion port 24. After the second baffle 43 rotates, it closes the air outlet 23 or the second conversion port 24. The first baffle 41 of the first air valve assembly selectively closes the air inlet 21 or the first conversion port 22, and the second baffle 43 of the second air valve assembly selectively closes the air outlet 23 or the second conversion port 24.

[0053] In some alternative embodiments, a sealing connection portion 27 is provided at the edge of at least one of the air inlet 21 and the first conversion port 22. After the first baffle 41 rotates, it abuts against the sealing connection portion 27 to seal the air inlet 21 or the first conversion port 22. In some alternative embodiments, a sealing connection portion 27 is provided at the edge of at least one of the air outlet 23 and the second conversion port 24. After the first baffle 41 rotates, it abuts against the sealing connection portion 27 to seal the air outlet 23 or the second conversion port 24. The above-mentioned sealing connection portion 27 can be designed according to actual needs. For example, the sealing connection portion 27 can be a sealing gasket or a stepped portion, etc. Among them, the sealing gasket can be an elastic rubber gasket, etc. In this embodiment, the sealing connection portion 27 is a stepped portion, which can not only play a certain sealing role, but also when the air discharges from the air outlet 23 or the second conversion port 24 into the air chamber 20, the second baffle 43 entering the stepped portion of the air outlet 23 or the second conversion port 24 can make the second baffle 43 stable without shaking, and avoid the second baffle 43 protruding from the inner surface of the housing and being blown by the wind. The sealing principle of the first baffle 41 and the sealing connection portion of the air inlet and the first conversion port is the same, and will not be elaborated here.

[0054] In some alternative embodiments, the air chamber 20 includes a blower chamber 28 and a filter chamber 29 that communicate with each other. The air inlet 21, the first conversion port 22, and the filter mechanism 26 are disposed in the filter chamber 29, and the air outlet 23, the second conversion port 24, and the blower 25 are disposed in the blower chamber 28. Separating the blower chamber 28 and the filter chamber 29 facilitates disassembly and assembly of different components. It should be noted that the structure of the housing 10 can be designed according to actual needs, so as to adjust the positions of the blower chamber 28, the filter chamber 29, and the conversion air duct 30 within the housing 10 to meet different functions. For example, in the present embodiment, the housing 10 includes a first outer shell 11 and a second outer shell 12 that communicate with each other; the air chamber 20 includes a blower chamber 28 and a filter chamber 29 that communicate with each other. The blower chamber 28 is disposed in the first outer shell 11, the filter chamber 29 is disposed in the second outer shell 12, the conversion air duct 30 is disposed in the first outer shell 11, the air inlet 21, the first conversion port 22, and the filter mechanism 26 are disposed in the filter chamber 29, and the air outlet 23, the second conversion port 24, and the blower 25 are disposed in the blower chamber 28. By dividing the air chamber 20 into two chambers, it is beneficial to assemble the air chamber 20 and the conversion air duct 30 with the existing housings of the blower and the filter mechanism, facilitating the realization of the structure of the fresh air system.

[0055] In some alternative embodiments, the filter mechanism 26 is detachably connected to the inner wall of the air chamber 20, which facilitates replacement of the filter mechanism 26. The filter mechanism 26 preferably adopts a HEPA filter. In some embodiments, since the orientation of the air inlet and the air inlet direction of the blower are not in the same direction, in order to increase the effective filtration area of the filter mechanism 26 and prevent the filter surface 26 of the filter mechanism from being parallel to the wind direction and reducing the filtration effect, the filter surface of the filter mechanism 26 can be set to have an angle with the direction from the air inlet 21 to the air inlet end of the blower. For example, in the present embodiment, a support platform 291 is provided in the filter chamber 29. The bottom of the filter mechanism is connected to the support platform 291, and the top abuts against the inner wall of the filter chamber 29. The filter mechanism 26 is tilted and supported by the support platform 291, so that the filter mechanism 26 forms an angle with the orientation of the air inlet 21 and the air inlet direction of the blower 25.

[0056] In some alternative embodiments, heat insulation materials are preferably further provided on the housing 10, which is beneficial to maintaining the temperature control effect of the air conditioner.

[0057] Embodiment Two:

[0058] Please refer to Figure 11, which is an exploded view of the fresh air system according to the second embodiment of the present invention. The difference between the fresh air system according to the second embodiment of the present invention and the first embodiment lies in that the air outlet 23 of the fresh air system in this embodiment can be arranged on the front side of the air conditioner, avoiding the situation that the air outlet 23 is arranged on the top of the air conditioner and is prone to dust accumulation. The air chamber 20 includes a blower chamber 28 and a filter chamber 29 that communicate with each other. The air inlet 21, the first conversion port 22, and the filter mechanism 26 are arranged in the filter chamber 29, and the air outlet 23, the second conversion port 24, and the blower 25 are arranged in the blower chamber 28. The air outlet 23 is located on one side of the housing 10.

[0059] Please also refer to Figure 12 , Figure 13 and Figure 14 , Figure 12 is a schematic structural diagram of the fresh air system according to the second embodiment of the present invention in the fresh air mode, Figure 13 is a partial cross-section of the fresh air system according to the second embodiment of the present invention in the fresh air mode Figure 1 , Figure 14 is a partial cross-section of the fresh air system according to the second embodiment of the present invention in the fresh air mode Figure 2 , when the fresh air system is in the working state of the fresh air mode, the air valve mechanism closes the air inlet 21, closes the second conversion port 24, opens the first conversion port 22 and the air outlet 23. After the blower 25 operates, the fresh air outdoors sequentially passes through the fresh air inlet 31, the conversion air duct 30, and the first conversion port 22 and then enters the air chamber 20. Then, after passing through the filter mechanism 26 and the blower 25 in the air chamber 20, it is discharged from the air outlet 23 to the indoor, thereby realizing sucking the fresh air into the indoor.

[0060] Please also refer to Figure 15 , Figure 16 and Figure 17 , Figure 15 is a schematic structural diagram of the fresh air system according to the second embodiment of the present invention in the exhaust mode, Figure 16 is a partial cross-section of the fresh air system according to the second embodiment of the present invention in the exhaust mode Figure 1 , Figure 17 is a partial cross-section of the fresh air system according to the second embodiment of the present invention in the exhaust mode Figure 2 , when the fresh air system is in the working state of the exhaust mode, the air valve mechanism closes the first conversion port 22, closes the air outlet 23, opens the air inlet 21, opens the second conversion port 24. After the blower 25 operates, the polluted air indoors enters the air chamber 20 from the air inlet 21 and then sequentially passes through the filter mechanism 26 and the blower 25. Then, it enters the conversion air duct 30 from the second conversion port 24, and then the polluted air indoors is discharged from the fresh air inlet 31 to the outdoors, thereby realizing discharging the polluted air indoors to the outdoors.

[0061] Please also refer to Figure 18 , Figure 19 andFigure 20 , Figure 18 is a schematic structural view of the fresh air system according to the second embodiment of the present invention in the indoor purification mode, Figure 19 is a partial sectional view of the fresh air system according to the second embodiment of the present invention in the indoor purification mode Figure 1 , Figure 20 is a partial sectional view of the fresh air system according to the second embodiment of the present invention in the indoor purification mode Figure 2 , when the fresh air system is in the working state of the indoor purification mode, the air valve mechanism closes the first conversion port 22 and the second conversion port 24, and opens the air inlet 21 and the air outlet 23. After the fan 25 operates, the indoor air enters the air chamber 20 from the air inlet 21, then sequentially passes through the filtering mechanism 26 and the fan 25, and then is discharged into the room from the air outlet 23, and the indoor air is purified through the filtering mechanism 26.

[0062] Embodiment Three:

[0063] Please refer to Figure 21 , which is an exploded view of the fresh air system according to the third embodiment of the present invention. The difference between the fresh air system according to the third embodiment of the present invention and the first embodiment is that the fan 25 adopts a double-suction centrifugal fan with two air inlet ends, which improves the fresh air delivery volume. The air chamber 20 includes a fan chamber 28 and a filtering chamber 29 that communicate with each other. The air inlet 21, the first conversion port 22 and the filtering mechanism 26 are arranged in the filtering chamber 29, and the air outlet 23, the second conversion port 24 and the fan 25 are arranged in the fan chamber 28. The fan chamber 28 is connected to the filtering chamber 29 through two fan connection ports 292, and the air inlet ends of the fan 25 are in one-to-one correspondence and communication with the fan connection ports 292. Of course, in some other embodiments, other suitable air conditioner structures can also be designed, and this is not limited to this example.

[0064] The above-mentioned fresh air system can be applied to an air conditioner, and the air conditioner includes: an air conditioner main body, a temperature adjustment device arranged in the air conditioner main body, and the above-mentioned fresh air system arranged in the air conditioner main body.

[0065] In some alternative embodiments, the fresh air inlet 31 communicates with the back or bottom of the air conditioner main body. Usually, the back of the air conditioner main body faces the ventilation hole communicating the indoor and outdoor, or is located above the ventilation hole, etc., so as to facilitate the connection between the fresh air inlet 31 and the ventilation hole.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air system, characterized in that, Comprising: a housing, and an air chamber, a conversion air duct and a wind valve mechanism disposed within the housing; An air inlet, a first conversion port, an air outlet, a second conversion port, a fan and a filtering mechanism are disposed within the air chamber. The air inlet and the first conversion port are both communicated with the air inlet end of the fan through the filtering mechanism, and the air outlet and the second conversion port are both communicated with the air outlet end of the fan; A fresh air inlet is disposed within the conversion air duct, and the conversion air duct is communicated with the first conversion port and the second conversion port; The wind valve mechanism is connected to the air inlet, the first conversion port, the air outlet and the second conversion port, and is used for opening and closing the air inlet, the first conversion port, the air outlet and the second conversion port; The wind valve mechanism includes a first wind valve assembly and a second wind valve assembly. The first wind valve assembly is used for opening and closing the air inlet and the first conversion port, and the second wind valve assembly is used for opening and closing the air outlet and the second conversion port; wherein, The first wind valve assembly includes a first baffle plate rotatably connected to the housing and a first power unit for driving the first baffle plate to rotate. The first baffle plate is located between the air inlet and the first conversion port, and the first baffle plate closes the air inlet or the first conversion port after rotation; The second wind valve assembly includes a second baffle plate rotatably connected to the housing and a second power unit for driving the second baffle plate to rotate. The second baffle plate is located between the air outlet and the second conversion port, and the second baffle plate closes the air outlet or the second conversion port after rotation; A sealing connection portion is provided at the edge of at least one of the air inlet and the first conversion port. The first baffle plate abuts against the sealing connection portion after rotation to seal the air inlet or the first conversion port; A sealing connection portion is provided at the edge of at least one of the air outlet and the second conversion port. The first baffle plate abuts against the sealing connection portion after rotation to seal the air outlet or the second conversion port; The sealing connection portion is a stepped portion; The housing includes a first outer shell and a second outer shell that are communicated with each other; the air chamber includes a fan chamber and a filtering chamber that are communicated with each other. The fan chamber is disposed within the first outer shell, the filtering chamber is disposed within the second outer shell, the conversion air duct is disposed within the first outer shell, the air inlet, the first conversion port and the filtering mechanism are disposed within the filtering chamber, and the air outlet, the second conversion port and the fan are disposed within the fan chamber.

2. The fresh air system according to claim 1, characterized in that: The filtering mechanism is detachably connected to the inner wall of the air chamber.

3. An air conditioner, characterized in that, Comprising: An air conditioner main body, a temperature regulating device disposed within the air conditioner main body, and a fresh air system as described in any one of claims 1 to 2 disposed within the air conditioner main body.

4. The air conditioner according to claim 3, characterized in that: The fresh air inlet is communicated to the back or bottom of the air conditioner main body.

Images