Fresh air module and fresh air air conditioner

Abstract

This invention relates to the field of air conditioning technology, specifically to a fresh air module and a fresh air air conditioner. The fresh air module includes a fan, a first chamber, and a second chamber. The first chamber is connected to the air inlet of the fan, and the second chamber is connected to the air outlet of the fan. The first chamber has a fresh air inlet and a stale air inlet, and a filter layer is installed within the first chamber. The fresh air inlet is located on the side of the filter layer facing away from the fan, and the stale air inlet is located on the side of the filter layer facing the fan. The second chamber has a fresh air outlet and a stale air outlet. Both the fresh air outlet and the stale air inlet are connected to the indoor environment, and both the fresh air inlet and the stale air outlet are connected to the outdoor environment. Valves are installed at the stale air inlet, fresh air inlet, fresh air outlet, and stale air outlet. The fresh air module and fresh air air conditioner provided by this invention have a high rate of exhaust of indoor polluted air, resulting in a faster actual indoor air renewal rate, better indoor environmental clarity, improved user experience, and a longer service life for the filter layer.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to a fresh air module and a fresh air air conditioner. Background Technology

[0002] Fresh air conditioners have a fresh air module that can introduce fresh outdoor air into the room, improving the freshness of the indoor environment.

[0003] The fresh air modules in existing air conditioning systems generally introduce fresh outdoor air into the room, creating a pressure difference between the indoor and outdoor environments. Under this pressure difference, the stale indoor air is slowly forced out through door and window gaps. This method results in a slow rate of stale indoor air removal, leading to a slower actual indoor air renewal rate and consequently, a poorer indoor environment, which negatively impacts the user experience.

[0004] In summary, overcoming the aforementioned shortcomings of existing fresh air modules in fresh air conditioning systems is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a fresh air module and a fresh air air conditioner to alleviate the technical problem of slow air renewal speed in the fresh air modules of existing fresh air air conditioners.

[0006] The fresh air module provided by the present invention includes a fan, a first chamber and a second chamber, wherein the first chamber is connected to the air inlet of the fan and the second chamber is connected to the air outlet of the fan.

[0007] The first chamber is provided with a fresh air inlet and a waste air inlet. A filter layer is provided in the first chamber. The fresh air inlet is located on the side of the filter layer that is away from the fan, and the waste air inlet is located on the side of the filter layer that is facing the fan.

[0008] The second chamber is provided with a fresh air outlet and a stale air outlet; the fresh air outlet and the stale air inlet are both connected to the indoor environment, and the fresh air inlet and the stale air outlet are both connected to the outdoor environment; valves are provided at the stale air inlet, the fresh air inlet, the fresh air outlet and the stale air outlet.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] When the fresh air module operates in fresh air mode, the valves at the fresh air inlet and outlet will open, while the valves at the stale air inlet and outlet will close. The fan will draw fresh outdoor air into the first chamber through the fresh air inlet. Since the fresh air inlet is located on the side of the filter layer opposite to the fan, the fresh air will be filtered through the filter layer before entering the fan and finally delivered into the room through the fresh air outlet. The filter layer can filter outdoor air, improving the cleanliness of the fresh air entering the room, which is beneficial to protecting the health of users.

[0011] When the fresh air module operates in exhaust mode, the valves at the exhaust air inlet and outlet open, while the valves at the fresh air inlet and outlet close. The fan draws polluted indoor air into the first chamber through the exhaust air inlet. Because the exhaust air inlet is located on the side of the filter layer facing the fan, the polluted air enters the first chamber without passing through the filter layer, but directly enters the fan and is finally discharged to the outside through the exhaust air outlet. This method can accelerate the discharge of polluted indoor air, resulting in a faster actual indoor air renewal speed, better indoor environmental clarity, and improved user experience. It should be noted that the polluted air is discharged from indoors to the outside without passing through the filter layer. On the one hand, the filter layer will not be contaminated by indoor polluted air during exhaust mode, saving unnecessary consumption of the filter layer and extending its service life. On the other hand, the filter layer will not create resistance to the airflow of polluted air, which helps to improve the efficiency of exhaust air discharge and further improve the indoor air renewal speed. Moreover, since the indoor polluted air is to be discharged to the outside, even without filtration, it does not affect the freshness of the indoor air.

[0012] In addition, both the fresh air inlet and the waste air inlet are located in the first chamber, while both the fresh air outlet and the waste air outlet are located in the second chamber, achieving the effect of using one chamber for two purposes. Moreover, the fresh air mode and the waste air exhaust mode can share the same fan, simplifying the structure.

[0013] Preferably, as one possible implementation, the fresh air module further includes a ventilation duct and a sewage pipe, wherein the inner end of the ventilation duct is connected to the fresh air inlet, and the outer end of the ventilation duct leads to the outside.

[0014] The ventilation duct has a sewage switching port on its wall. One end of the sewage duct is connected to the sewage outlet, and the other end of the sewage duct is connected to the sewage switching port.

[0015] The benefits are that it reduces the number of air conditioner ducts extending outdoors, which not only saves material costs, but also increases airflow while keeping the hole size in the wall the same, thus ensuring the speed of indoor air renewal.

[0016] Preferably, as one possible implementation, the drain pipe is a flexible hose.

[0017] The advantages are that the assembly is more flexible and convenient, and the airflow resistance in the flexible sewage pipe is much lower than that in the rigid pipe, which makes it easier to ensure the exhaust volume of sewage air.

[0018] Preferably, as one possible implementation, the fresh air outlet includes a front fresh air outlet and a side fresh air outlet, the side fresh air outlet is located on the side of the second chamber, and the waste air outlet is located at the rear of the second chamber; the front fresh air outlet is connected to the front air vent of the air conditioner casing through a front air outlet duct, and the side fresh air outlet is connected to the side air vent of the air conditioner casing through a side air outlet duct.

[0019] The beneficial effects include improving the uniformity of fresh air in different indoor areas, shortening the length of the drain pipe, reducing wear, and saving drive energy.

[0020] Preferably, as one possible implementation, the fresh air module further includes a second chamber, which is connected to the air outlet of the fan, and the fresh air front outlet, the fresh air side outlet and / or the waste air outlet are located in the second chamber.

[0021] The beneficial effects are that it can further improve the uniformity of fresh air in different areas of the room and simplify the structure.

[0022] Preferably, as one possible implementation, the valve includes a first valve, which is shared by the fresh air outlet and the waste air outlet, and the first valve can be switched between a first position and a second position.

[0023] When the first valve is in the first position, the fresh air outlet is open and the waste air outlet is closed; when the first valve is in the second position, the fresh air outlet is closed and the waste air outlet is open.

[0024] The benefits are that it not only helps reduce the overall cost of the unit and saves internal space in the air conditioner, but also reduces the difficulty of controlling the air conditioning system.

[0025] Preferably, as one possible implementation, the first valve includes a first drive mechanism, a first baffle and a first adapter, the first drive mechanism is connected to the first adapter and is used to drive the first adapter to rotate around a first rotating shaft, and the first baffle is connected to the end of the first adapter opposite to the first rotating shaft.

[0026] The first baffle is located in the second chamber and is used to block the waste air outlet when in the first position and to block the fresh air outlet when in the second position.

[0027] The beneficial effect is that it can achieve the purpose of one valve for two purposes, and the first valve is not prone to shaking or abnormal noise due to changes in air volume.

[0028] Preferably, as one possible implementation, the first baffle is arc-shaped, and the concave side of the first baffle faces the interior of the second chamber.

[0029] The beneficial effect is that it reduces the waste of air volume.

[0030] Preferably, as one possible implementation, the valve includes a second valve installed at the fresh air inlet.

[0031] The second valve includes a second drive mechanism, a second baffle, and a second adapter. The second drive mechanism is connected to the second adapter and is used to drive the second adapter to rotate around a second rotating shaft. The second baffle is connected to the end of the second adapter opposite to the second rotating shaft. The second baffle is located in the second chamber and can be rotated to a position that blocks the fresh air outlet or opens the fresh air outlet.

[0032] The beneficial effect is that the second valve is less likely to vibrate or make abnormal noises due to changes in air volume.

[0033] Preferably, as one possible implementation, the valve includes a third valve, which is installed at the wastewater inlet.

[0034] The third valve includes a third drive mechanism and a third baffle. The third drive mechanism is connected to the third baffle and is used to drive the third baffle to rotate. The third baffle can rotate to a position that blocks the sewage inlet or to a position that opens the sewage inlet.

[0035] The beneficial effect is that it allows for the opening or closing of the sewage inlet.

[0036] The present invention also provides a fresh air air conditioner, which includes a body and the aforementioned fresh air module, wherein the fresh air module is installed at the lower part of the body.

[0037] The fresh air conditioner provided by this invention has all the advantages of the aforementioned fresh air module, with lower cost, less internal space waste, lower control difficulty of the air conditioning system, and less tendency to produce vibration and abnormal noise; in addition, placing the fresh air module at the bottom of the unit makes it easier to shorten the duct length, saving costs and further reducing space waste. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1 This is a cross-sectional view of the fresh air module provided in an embodiment of the present invention;

[0040] Figure 2 This is a three-dimensional structural diagram of the fresh air module in fresh air mode provided in an embodiment of the present invention;

[0041] Figure 3 This is a cross-sectional view of the fresh air module in fresh air mode according to an embodiment of the present invention;

[0042] Figure 4 A three-dimensional structural diagram of the fresh air module in the sewage discharge mode provided in an embodiment of the present invention;

[0043] Figure 5 This is a cross-sectional structural diagram of the fresh air module provided in the embodiment of the present invention in the sewage discharge mode.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100-fan;

[0046] 200-Filter Layer;

[0047] 300 - First chamber; 310 - Fresh air inlet; 320 - Stale air inlet;

[0048] 400 - Second chamber; 410 - Stale air outlet; 420 - Fresh air front outlet; 430 - Fresh air side outlet; 440 - Front air outlet duct; 450 - Side air outlet duct;

[0049] 500 - Ventilation duct;

[0050] 600 - Sewage pipe;

[0051] 710 - First valve; 711 - First baffle; 712 - First adapter; 713 - First shaft; 720 - Second valve; 721 - Second baffle; 722 - Second adapter; 723 - Second shaft; 730 - Third valve. Detailed Implementation

[0052] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0054] See Figure 1 This embodiment provides a fresh air module that not only supplies fresh air but also exhausts pollutants. The exhaust air and fresh air supply share the same fan 100, saving space and cost. Indoor polluted air can be drawn to the outside when the exhaust mode is activated, accelerating indoor air renewal. Outdoor fresh air is filtered through a filter layer 200 before entering the fan 100, improving the freshness of the fresh air supplied indoors. Indoor polluted air enters the fan 100 directly without passing through the filter layer 200. Since the indoor polluted air is to be exhausted outdoors, its lack of filtration does not affect the freshness of the indoor air. This not only saves unnecessary consumption of the filter layer 200, extending its service life, but also ensures that the filter layer 200 does not obstruct airflow, improving polluted air exhaust efficiency.

[0055] See Figures 1-5 The fresh air module provided in this embodiment includes a fan 100, a first chamber 300, and a second chamber 400. The first chamber 300 is connected to the air inlet of the fan 100, and the second chamber 400 is connected to the air outlet of the fan 100. The first chamber 300 is provided with a fresh air inlet 310 and a stale air inlet 320. A filter layer 200 is provided inside the first chamber 300. The fresh air inlet 310 is located on the side of the filter layer 200 facing away from the fan 100, and the stale air inlet 320 is located on the side of the filter layer 200 facing the fan 100. The second chamber 400 is provided with a fresh air outlet and a stale air outlet 410. Both the fresh air outlet and the stale air inlet 410 are connected to the indoor environment, and both the fresh air inlet and the stale air outlet 410 are connected to the outdoor environment. Valves are provided at the stale air inlet 320, the fresh air inlet 310, the fresh air outlet, and the stale air outlet 410.

[0056] See Figures 1-3When the fresh air module operates in fresh air mode, the valves at the fresh air inlet 310 and the fresh air outlet will open, while the valves at the waste air inlet 320 and the waste air outlet 410 will close. The fan 100 can draw fresh outdoor air into the first chamber through the fresh air inlet 310. Since the fresh air inlet is located on the side of the filter layer 200 opposite to the fan 100, the fresh air will be filtered by the filter layer 200 after entering the first chamber through the fresh air inlet, and then enter the fan 100, and finally be sent into the room through the fresh air outlet. The filter layer 200 can filter the outdoor air, improve the cleanliness of the fresh air entering the room, and help protect the health of users.

[0057] See Figure 4 and Figure 5 When the fresh air module operates in exhaust mode, the valves at the waste air inlet 320 and waste air outlet 410 will open, while the valves at the fresh air inlet 310 and fresh air outlet will close. The fan 100 can draw indoor polluted air into the first chamber through the waste air inlet 320. Because the waste air inlet 320 is located on the side of the filter layer 200 facing the fan 100, the polluted air does not need to flow through the filter layer 200 after entering the first chamber through the waste air inlet, but directly enters the fan 100 and is finally discharged to the outside through the waste air outlet 410. This method can speed up the exhaust of indoor polluted air, thereby making the actual indoor air renewal speed faster. The indoor environment is clearer, which can improve the user experience. It should be noted that the polluted air is discharged from indoors to outdoors without passing through the filter layer 200. On the one hand, the filter layer 200 will not be contaminated by indoor polluted air when the sewage discharge mode is running, which can save unnecessary consumption of the filter layer 200 and thus extend the service life of the filter layer 200. On the other hand, the filter layer 200 will not create resistance to the airflow of polluted air, which is conducive to improving the efficiency of polluted air discharge and further improving the indoor air renewal speed. Moreover, since the indoor polluted air is to be discharged to the outside, even if it is not filtered, it will not affect the freshness of the indoor air.

[0058] In addition, both the fresh air inlet 310 and the waste air inlet 320 are located on the first chamber 300, and both the fresh air outlet and the waste air outlet 410 are located on the second chamber 400, achieving the effect of one chamber serving two purposes. Moreover, the fresh air mode and the waste air exhaust mode can share the fan 100, simplifying the structure.

[0059] Specifically, the filter layer 200 can be set as a HEPA (High-Efficiency Particulate Air) filter, which has high single-pass purification efficiency, and the purification rate decreases slowly with air volume and usage time, and can intercept major viruses.

[0060] In the specific structure of the fresh air module, a ventilation duct 500 and a sewage pipe 600 can be set. One end of the ventilation duct 500 is connected to the fresh air inlet 310, and the other end of the ventilation duct 500 is connected to the outside. In this way, when the fresh air mode is activated, the ventilation duct 500 can be used to introduce outdoor fresh air to the fresh air inlet 310. A sewage switching port can also be opened on the wall of the ventilation duct 500. One end of the sewage pipe 600 is connected to the sewage air outlet 410, and the other end of the sewage pipe 600 is connected to the sewage switching port. In this way, when the sewage mode is activated, the sewage pipe 600 can be used to introduce the polluted air discharged from the sewage air outlet 410 into the ventilation duct 500, and then discharge it to the outside through the ventilation duct 500. That is to say, outdoor fresh air and indoor polluted air can share a ventilation duct 500 connected to the outside, which can reduce the number of air conditioning pipes extending outdoors. This not only saves material costs, but also increases the air volume while keeping the hole size on the wall the same, so as to ensure the speed of indoor air renewal.

[0061] Preferably, the drain pipe 600 can be made into a flexible hose. During assembly, the drain pipe 600 can be bent at any point, making it more flexible and reducing the space requirements for installation. This allows the drain pipe 600 to easily adapt to the original internal structure of the air conditioner, making assembly more convenient. In addition, making the drain pipe 600 into a flexible hose reduces the likelihood of large bends during pipe routing. Therefore, compared to rigid pipes that require many bends due to space limitations, the airflow resistance within the flexible drain pipe 600 is greatly reduced, improving the drainage flow of the drain pipe 600, ensuring the exhaust volume of stale air, and thus improving the fresh air exchange efficiency of the fresh air module.

[0062] See Figures 2-5 Two fresh air outlets can be configured, defined as a front fresh air outlet 420 and a side fresh air outlet 430. The waste air outlet 410 can be located at the rear of the second chamber 400, which helps to shorten the length of the waste air pipe 600. Simultaneously, placing the side fresh air outlet 430 on the side of the second chamber 400 minimizes the distance between the side fresh air outlet 430 and the waste air outlet 410, reducing the travel required for the first baffle 711 to switch between the first and second positions, reducing wear, and saving drive energy. The front fresh air outlet 420 can be connected to the front air vent of the air conditioner casing via a front air outlet duct 440, and the side fresh air outlet 430 can be connected to the side air vent of the air conditioner casing via a side air outlet duct 450. In this way, outdoor fresh air can be blown into the room towards the front and side of the air conditioner, ensuring fresh air intake in both areas and improving the uniformity of fresh air in different areas of the room.

[0063] When the fresh air module operates in fresh air mode, the second chamber 400 can serve as an airflow stabilizing chamber. After the fresh air enters the second chamber 400, the second chamber 400 can buffer the fresh air, so that the fresh air can be blown out evenly from the fresh air front outlet 420 and the fresh air side outlet 430. This ensures that the air volume area of ​​the fresh air blown out from the fresh air front outlet 420 and the fresh air side outlet 430 is equal, which can further improve the fresh air uniformity in different areas of the room.

[0064] See Figure 3 and Figure 5 The aforementioned valve includes a first valve 710, which can switch between a first position and a second position to close the fresh air outlet 430 or the waste air outlet 410. When the first valve 710 is switched to the first position, the fresh air outlet 430 is closed and the waste air outlet 410 is opened accordingly, which can adapt to the wastewater discharge mode. When the first valve 710 is switched to the second position, the waste air outlet 410 is closed and the fresh air outlet 430 is opened accordingly, which can adapt to the fresh air mode. That is, the fresh air outlet 430 and the waste air outlet 410 can share the first valve 710, which can reduce the number of valves. Correspondingly, the number of drive mechanisms used to drive the valves is also reduced, which not only helps to reduce the overall cost and save the internal space of the air conditioner, but also reduces the control difficulty of the air conditioning system.

[0065] In the specific structure of the first valve 710 described above, a first driving mechanism, a first baffle 711, and a first adapter 712 can be provided. The first driving mechanism is connected to the first adapter 712 so that the first driving mechanism drives the first adapter 712 to rotate around the first rotating shaft 713. The first baffle 711 is connected to the end of the first adapter 712 that is away from the first rotating shaft 713. In this way, the first baffle 711 can rotate synchronously with the first adapter 712 around the first rotating shaft 713. The first baffle 711 is located in the second chamber 400. When the first baffle 711 rotates to the first position, it can block the sewage outlet 410. When the first baffle 711 rotates to the second position, it can block the fresh air outlet 430. This achieves the purpose of one valve serving two purposes. Moreover, the first valve 710 with this structure is not prone to misalignment, and therefore, it is not prone to vibration and abnormal noise due to changes in air volume.

[0066] Preferably, the shape of the first baffle 711 can be set to an arc shape, and the concave side of the first baffle 711 can be set to face the interior of the second chamber 400. In this way, the side of the first baffle 711 facing the interior of the second chamber 400 can form a certain guiding effect on the airflow, so that the airflow can pass smoothly through the area where the first baffle 711 is located, thereby reducing the waste of air volume.

[0067] In fact, when the first baffle 711 rotates around the first pivot 713 under the drive of the first connecting part 712, it will move along the cavity wall of the second chamber 400 between the fresh air outlet 430 and the waste air outlet 410. Specifically, the cavity wall of the second chamber 400 has a first guide part, and the aforementioned fresh air outlet 430 and waste air outlet 410 are both located on the first guide part. The first guide part is an arc-shaped structure centered on the first pivot 712. When the first baffle 711 rotates around the first pivot 713, it can reciprocate along the smooth arc surface of the first guide part. The existence of the first guide part can not only improve the operational reliability of the first baffle 711, but also guide the airflow together with the first baffle 711, which can further improve the guiding effect.

[0068] The aforementioned valve may further include a second valve 720, which is installed at the fresh air outlet 420 to open or close the fresh air outlet 420. The second valve 720 may include a second drive mechanism, a second baffle 721, and a second connecting part 722. The second drive mechanism is connected to the second connecting part 722 to drive the second connecting part 722 to rotate around the second rotating shaft 723. The second baffle 721 is connected to the end of the second connecting part 722 opposite to the second rotating shaft 723, so that the second baffle 721 can rotate synchronously with the second connecting part 722 around the second rotating shaft 723. The second baffle 721 is located within the second chamber 400 and can rotate to either block or open the fresh air outlet 420. This type of second valve 720 is less prone to misalignment and therefore less likely to vibrate or make abnormal noises due to changes in airflow.

[0069] Preferably, the shape of the second baffle 721 can be set as an arc surface, and the concave side of the arc of the second baffle 721 can be set to face the inside of the second chamber 400. In this way, the side of the second baffle 721 facing the inside of the second chamber 400 can form a certain guiding effect on the airflow, so that the airflow can pass smoothly through the area where the second baffle 721 is located, thereby reducing the waste of air volume.

[0070] In fact, when the second baffle 721 rotates around the second pivot 723 under the drive of the second connecting part 722, it moves along the cavity wall of the second chamber 400 near the fresh air outlet 420. It can move to a position that covers the fresh air outlet 420 to block it; or it can move to a position that deviates from the fresh air outlet 420 to open it. Specifically, the cavity wall of the second chamber 400 has a second guide part, and the aforementioned fresh air outlet 420 is located on the second guide part. The second guide part is an arc-shaped structure centered on the second pivot 723. When the second baffle 721 rotates around the second pivot 723, it can reciprocate along the smooth arc surface of the second guide part. The existence of the second guide part not only improves the operational reliability of the second baffle 721, but also guides the airflow together with the second baffle 721, which can further improve the guiding effect.

[0071] The valve may also include a third valve 730, which is installed in the waste air inlet 320 to open or close the waste air inlet 320. The third valve 730 may include a third drive mechanism and a third baffle in its specific structure. The third drive mechanism is connected to the third baffle so that the third baffle can be rotated by the second drive mechanism. The third baffle can be rotated to a position that blocks the fresh air outlet 420 or opens the fresh air outlet 420, thereby opening or closing the waste air inlet 320.

[0072] Specifically, motors can be installed in the first, second, and third drive mechanisms mentioned above to provide power.

[0073] The valve also includes a fourth valve, which is installed at the fresh air inlet 310 and can be switched to either blocking or opening the fresh air inlet 310.

[0074] This embodiment also provides a fresh air conditioner, which includes a body and the aforementioned fresh air module, with the fresh air module installed at the lower part of the body.

[0075] The fresh air conditioner provided in this embodiment has all the advantages of the aforementioned fresh air module, with lower cost, less internal space waste, lower control difficulty of the air conditioning system, and less tendency to produce vibration and abnormal noise; in addition, placing the fresh air module at the bottom of the unit makes it easier to shorten the duct length, saving costs and further reducing space waste.

[0076] In summary, the embodiments of the present invention disclose a fresh air module and a fresh air conditioner, which overcome many technical defects of traditional fresh air conditioner fresh air modules. The fresh air module and fresh air conditioner provided by the embodiments of the present invention have a high exhaust speed of indoor polluted air, a faster actual indoor air renewal speed, and better indoor environmental clarity, which can improve the user experience; in addition, the filter layer can improve the cleanliness of the fresh air entering the room, which is beneficial to protecting the user's health, and the filter layer has a long service life.

[0077] In the description of this invention, it should be noted that the terms "down," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0078] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fresh air module, characterized in that, It includes a fan (100), a first chamber (300) and a second chamber (400), wherein the first chamber (300) is connected to the air inlet of the fan (100) and the second chamber (400) is connected to the air outlet of the fan (100); The first chamber (300) is provided with a fresh air inlet (310) and a waste air inlet (320). A filter layer (200) is provided inside the first chamber (300). The fresh air inlet (310) is located on the side of the filter layer (200) facing away from the fan (100), and the waste air inlet (320) is located on the side of the filter layer (200) facing the fan (100). The second chamber (400) is provided with a fresh air outlet and a waste air outlet (410); the fresh air outlet and the waste air inlet (320) are both connected to the indoor environment, and the fresh air inlet and the waste air outlet (410) are both connected to the outdoor environment; valves are provided at the waste air inlet (320), the fresh air inlet (310), the fresh air outlet and the waste air outlet (410); The fresh air outlet includes a fresh air front outlet (420) and a fresh air side outlet (430). The fresh air side outlet (430) is located on the side of the second chamber (400), and the waste air outlet (410) is located at the rear of the second chamber (400). The fresh air front outlet (420) is connected to the front air vent of the air conditioner casing through a front air outlet duct (440), and the fresh air side outlet (430) is connected to the side air vent of the air conditioner casing through a side air outlet duct (450). The valve includes a first valve (710), which is shared by the fresh air outlet and the waste air outlet (410). The first valve (710) can be switched between a first position and a second position.

2. The fresh air module according to claim 1, characterized in that, The fresh air module also includes a ventilation duct (500) and a sewage pipe (600), one end of which is connected to the fresh air inlet (310) and the other end is connected to the outside. The ventilation pipe (500) has a sewage switching port on its pipe wall. One end of the sewage pipe (600) is connected to the sewage outlet (410), and the other end is connected to the sewage switching port.

3. The fresh air module according to claim 2, characterized in that, The drain pipe (600) is a flexible hose.

4. The fresh air module according to claim 1, characterized in that, When the first valve (710) is in the first position, the fresh air outlet (430) is open and the waste air outlet (410) is closed; when the first valve (710) is in the second position, the fresh air outlet (430) is closed and the waste air outlet (410) is open.

5. The fresh air module according to claim 4, characterized in that, The first valve (710) includes a first drive mechanism, a first baffle (711) and a first adapter (712). The first drive mechanism is connected to the first adapter (712) and is used to drive the first adapter (712) to rotate around a first rotating shaft (713). The first baffle (711) is connected to the end of the first adapter (712) opposite to the first rotating shaft (713). The first baffle (711) is located in the second chamber (400) and is used to block the sewage outlet (410) in the first position and to block the fresh air outlet (430) in the second position.

6. The fresh air module according to claim 5, characterized in that, The first baffle (711) is arc-shaped, and the concave side of the first baffle (711) faces the interior of the second chamber (400).

7. The fresh air module according to claim 1, characterized in that, The valve includes a second valve (720), which is installed at the fresh air inlet (420). The second valve (720) includes a second drive mechanism, a second baffle (721) and a second adapter (722). The second drive mechanism is connected to the second adapter (722) and is used to drive the second adapter (722) to rotate around the second rotating shaft (723). The second baffle (721) is connected to the end of the second adapter (722) opposite to the second rotating shaft (723). The second baffle (721) is located in the second chamber (400) and can be rotated to a position to block the fresh air outlet (420) or to open the fresh air outlet (420).

8. The fresh air module according to claim 1, characterized in that, The valve includes a third valve (730), which is installed at the waste air inlet (320). The third valve (730) includes a third drive mechanism and a third baffle. The third drive mechanism is connected to the third baffle and is used to drive the third baffle to rotate. The third baffle can rotate to a position that blocks the sewage inlet (320) or to a position that opens the sewage inlet (320).

9. A fresh air conditioning system, characterized in that, It includes a body and a fresh air module as described in any one of claims 1-8, wherein the fresh air module is installed at the lower part of the body.

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