Air purification module, air conditioner and air purification method

Abstract

The invention provides an air purification module, an air conditioner and an air purification method, and the air purification module comprises a mounting plate which is provided with an indoor air return port; an air return cylinder assembly; an air inlet cylinder; an outdoor air duct; a purification assembly; wherein the outdoor air pipe, the air port A1, the air outlet channel and the air port B1 are sequentially communicated to form a fresh air purification path; the indoor air return port, the two first air guide ports, the air port A2, the air outlet channel and the air port B1 are communicated in sequence to form an internal circulation purification path; the indoor air return port, the two first air guide ports, the air port A2, the air outlet channel, the air port B2, the two second air guide ports, the two third air guide ports, the air port A3 and the outdoor air pipe are sequentially communicated to form an exhaust purification path. The technical problems that in the prior art, an air purification module is complex in structure and occupies the space structure of the whole machine are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air purification module, an air conditioner and an air purification method. Background Art

[0002] Indoor air quality is closely related to human health, and people pay more and more attention to the purification of indoor air. In terms of air flow, it can be divided into indoor air internal circulation purification and indoor and outdoor air replacement purification. Among them, indoor air internal circulation purification is represented by air purifiers. When the indoor air continuously flows through the air purification module, it relies on the dust removal, sterilization and other functional components set inside it to remove or kill particulate matter and viruses in the air, so as to achieve the circulation purification of indoor air; among them, the indoor and outdoor air replacement purification, the principle is to use the air pressure difference between indoor and outdoor to achieve the dilution and replacement of indoor polluted air. This type of air replacement is divided into introducing fresh air from the outside into the room, maintaining a slight positive pressure indoors, so that the indoor polluted air is continuously discharged to the outside (hereinafter referred to as the fresh air purification mode) and extracting indoor polluted air to discharge to the outside, maintaining a slight negative pressure indoors, so that the outdoor fresh air is supplemented and flows into the room (hereinafter referred to as the exhaust purification mode). The fresh air purification mode is represented by micro-positive pressure fresh air fans and fresh air air conditioners; the exhaust air purification mode is represented by exhaust fans. Both micro-positive pressure fresh air purification and exhaust air purification break the air pressure difference balance between indoor and outdoor to maintain indoor and outdoor air flow, thereby continuously diluting the indoor polluted air to achieve the purpose of purification.

[0003] If the above three air purification modes need to be realized at the same time, according to the working principle, multiple fans, multiple sets of air ducts or multiple airflow reversing devices are usually required, which not only occupies the structural space of the whole machine, but also has high cost and complicated after-sales installation. The finished product after assembly will take up a large space. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an air purification module, an air conditioner and an air purification method, which solve the technical problems in the prior art that the air purification module has a complex structure and occupies the space structure of the entire machine.

[0005] According to an embodiment of the present invention, an air purification module includes:

[0006] Mounting plate with indoor return air vents;

[0007] The return air cylinder assembly comprises a first return air cylinder, a second return air cylinder and a third return air cylinder which are independently arranged on the mounting plate, wherein the first return air cylinder has two first return air ports, the second return air cylinder has two second return air ports, and the third return air cylinder has two third return air ports;

[0008] An air inlet cylinder is arranged on the mounting plate, and the air inlet cylinder is provided with an A1 air outlet, an A2 air outlet and an A3 air outlet, wherein the A1 air outlet is arranged along the axial direction of the air inlet cylinder, the A2 air outlet and the A3 air outlet are arranged at intervals on the same side of the air inlet cylinder, and the A1 air outlet is located between the A2 air outlet and the A3 air outlet;

[0009] An outdoor air duct is arranged at one end of the air inlet cylinder;

[0010] A purification component is arranged at the other end of the air inlet cylinder, and the purification component has an air outlet channel, and a B1 air outlet is arranged in the air outlet channel along its axial direction, and a B2 air outlet is arranged on its side;

[0011] A first airflow reversing component is movably disposed in the air inlet tube, and is used to alternately open or close the A1 air outlet or the A2 air outlet, so that the A1 air outlet or the A3 air outlet is connected, or the A2 air outlet and the A3 air outlet are independent of each other;

[0012] A second airflow reversing component, movably disposed in the air outlet channel, for alternately opening or closing the B1 air outlet and the B2 air outlet;

[0013] Among them, the outdoor air duct, A1 air outlet, air outlet channel, and B1 air outlet are connected in sequence to form a fresh air purification path;

[0014] The indoor return air outlet, the two first air guide outlets, the A2 air outlet, the air outlet channel, and the B1 air outlet are connected in sequence to form an internal circulation purification path;

[0015] The indoor return air outlet, two first air guide outlets, the A2 air outlet, the air outlet channel, the B2 air outlet, two second air guide outlets, two third air guide outlets, the A3 air outlet and the outdoor air duct are connected in sequence to form an exhaust purification path.

[0016] Preferably, the first air flow reversing component includes a first damper rotatably arranged on the air inlet cylinder, which is used to make the A1 air outlet and the A2 air outlet both have an open state and a closed state. When the A1 air outlet is in the open state and the A2 air outlet is in the closed state, a fresh air purification path is configured; when the A1 air outlet is in the closed state and the A2 air outlet is in the open state, an internal circulation purification path or an exhaust air purification path is configured.

[0017] Preferably, the second air flow reversing component includes a second air door rotatably arranged in the air outlet channel, which is used to make the B1 air outlet and the B2 air outlet both have an open state or a closed state. When the B1 air outlet is in the open state and the B2 air outlet is in the closed state, a fresh air purification path or an internal circulation purification path is configured; when the B1 air outlet is in the closed state and the B2 air outlet is in the open state, an exhaust air purification path is configured.

[0018] Preferably, the purification component comprises:

[0019] An air inlet bracket is connected to the air inlet tube, and the air inlet bracket is provided with a purification filter element;

[0020] The volute assembly includes an upper volute and a lower volute connected to each other, and a centrifugal wind wheel located between the upper volute and the lower volute. The upper volute is fixed to the air inlet bracket and the air outlet channel is formed between the upper volute and the lower volute.

[0021] Preferably, a plurality of mounting points are provided at the connection between the air inlet bracket and the air inlet cylinder, and the plurality of mounting points are respectively fixed along the X-axis, Y-axis and Z-axis directions.

[0022] Preferably, the air inlet tube is provided with a third damper for closing or opening the A3 air outlet. In the fresh air path or the internal circulation purification path, the third damper closes the A3 air outlet, and in the fresh air purification path, the third damper opens the A3 air outlet.

[0023] According to an embodiment of the present invention, there is provided an air conditioner, comprising the above-mentioned air purification module.

[0024] According to an embodiment of the present invention, an air purification method is provided, comprising the air purification module described above, wherein the air purification module comprises a fresh air purification mode, an internal circulation purification mode and an exhaust air purification mode, and the air purification method comprises the following steps:

[0025] Introduce outdoor air, purify it through the air purification module and then discharge it into the room, and switch the air purification module to the fresh air purification mode;

[0026] Introduce indoor air, purify it through the air module and discharge it into the room, and switch the air purification module to the internal circulation purification mode;

[0027] Indoor air is introduced, and the dirty indoor air is purified by the air purification module and then discharged outdoors, and the air purification module is switched to exhaust purification mode.

[0028] Preferably, the step of switching the air purification module to the internal circulation purification mode includes:

[0029] S1, the first damper opens the A1 vent and closes the A2 vent at the same time, the second damper opens the B1 vent and closes the B2 vent at the same time, the third damper closes the vent 3, and the outdoor fresh air flows into the room through the outdoor air duct, the A1 vent, the air outlet channel, and the B1 vent to purify the indoor air;

[0030] The steps of switching the air purification module to the internal circulation purification mode include:

[0031] S2, the first air door opens the A2 air outlet and synchronously closes the A1 air outlet, and the second air door opens the B1 air outlet and synchronously closes the B2 air outlet, and the third air door closes the A3 air outlet. The indoor polluted air flows into the room through the indoor return air outlet, the first return air outlet, the A2 air outlet, the air outlet channel, and the B1 air outlet, thereby achieving self-circulation purification of the indoor air.

[0032] Preferably, the step of switching the air purification module to the exhaust purification mode includes:

[0033] S3, the first damper opens the A2 vent and closes the A1 vent synchronously, the second damper opens the B2 vent and closes the B1 vent synchronously, the third damper opens the A3 vent, the indoor air flows through the indoor return air outlet, the two first air guides, the A2 vent, the air outlet duct, the B2 vent, and then through the two second air guides, the two third air guides to the A3 vent, and then flows to the outdoors through the outdoor air duct, so as to exhaust and purify the indoor air.

[0034] Compared with the prior art, the present invention has the following beneficial effects: the present invention proposes a three-in-one air purification module, which can simultaneously realize internal circulation air purification, micro-positive pressure fresh air purification and exhaust gas purification. It only requires a centrifugal fan, a set of main air ducts, two air flow reversing devices and a return air tube. It has a simple structure, simplifies the structure of the overall air purification module, and has a smaller installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of an air purification module in one embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the installation of an air purification module in one embodiment of the present invention;

[0037] Figure 3 for Figure 1 A partial cross-sectional view of

[0038] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0039] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0040] Figure 6 This is a schematic diagram of the explosion structure of an air purification module in one embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of the internal circulation purification mode in one embodiment of the present invention;

[0042] Figure 8 This is a structural schematic diagram of a fresh air purification mode in one embodiment of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of an exhaust gas purification mode in one embodiment of the present invention;

[0044] Fig.10 It is a cross-sectional view of the exhaust gas purification mode BB in one embodiment of the present invention;

[0045] Fig.11 Another structural schematic diagram of an internal circulation purification mode in one embodiment of the present invention;

[0046] Fig.12 Another structural schematic diagram of a fresh air purification mode in one embodiment of the present invention;

[0047] Fig.13 FIG. 2 is another structural schematic diagram of an exhaust purification mode in an embodiment of the present invention.

[0048] In the above drawings: 1. mounting plate; 101. indoor return air outlet; 2. first return air duct; 3. second return air duct; 4. third return air duct; 5. air inlet duct; 501. A1 air outlet; 502. A2 air outlet; 503. A3 air outlet; 6. outdoor air duct; 7. air inlet bracket; 8. upper volute; 9. lower volute; 10. centrifugal wind wheel; 11. air outlet channel; 12. B1 air outlet; 13. B2 air outlet; 14. first air door; 15. second air door; 16. third air door. DETAILED DESCRIPTION

[0049] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0050] like Figure 1-Figure 13 As shown, the embodiment of the present invention provides an air purification module, an air conditioner and an air purification method, including:

[0051] The mounting plate 1 is provided with an indoor return air outlet 101;

[0052] The return air cylinder assembly comprises a first return air cylinder 2, a second return air cylinder 3 and a third return air cylinder 4 which are independently arranged on the mounting plate 1, wherein the first return air cylinder 2 has two first return air ports, the second return air cylinder 3 has two second return air ports, and the third return air cylinder 4 has two third return air ports;

[0053] An air inlet 5 is provided on the mounting plate 1, and the air inlet 5 is provided with an A1 air port 501, an A2 air port 502 and an A3 air port 503, wherein the A1 air port 501 is arranged along the axial direction of the air inlet 5, the A2 air port 502 and the A3 air port 503 are arranged at intervals on the same side of the air inlet 5, and the A1 is located between the A2 air port 502 and the A3 air port 503;

[0054] An outdoor air duct 6 is provided at one end of the air inlet tube 5;

[0055] A purification component is arranged at the other end of the air inlet cylinder 5, and the purification component has an air outlet channel 11, and a B1 air outlet 12 is arranged in the air outlet channel 11 along its axial direction, and a B2 air outlet 13 is arranged on its side;

[0056] A first airflow reversing component is movably disposed in the air inlet 5, and is used to alternately open or close the A1 air outlet 501 or the A2 air outlet 502, so that the A1 air outlet 501 or the A3 air outlet 503 are connected, or the A2 air outlet 502 and the A3 air outlet 503 are independent of each other;

[0057] A second airflow reversing component, movably disposed in the air outlet channel 11, for alternately opening or closing the B1 air outlet 12 and the B2 air outlet 13;

[0058] Among them, the outdoor air duct 6, the A1 air outlet 501, the air outlet channel 11, and the B1 air outlet 12 are connected in sequence to form a fresh air purification path;

[0059] The indoor return air outlet 101, the two first air guide outlets, the A2 air outlet 502, the air outlet channel 11, and the B1 air outlet 12 are connected in sequence to form an internal circulation purification path;

[0060] The indoor return air outlet 101, two first air guide outlets, A2 air outlet 502, the air outlet channel 11, B2 air outlet 13, two second air guide outlets, two third air guide outlets, A3 air outlet 503 and the outdoor air duct 6 are connected in sequence to form an exhaust purification path.

[0061] In this embodiment, an indoor return air port 101 is provided on the mounting plate 1 of the air conditioner. The indoor return air port 101 is used to communicate with the room and collect the indoor air. An independent first return air cylinder 2, a second return air cylinder 3 and a third return air cylinder 4 are provided on the mounting plate 1. The first return air cylinder 2 is provided with two first return air ports, the second return air cylinder 3 is provided with two second return air ports, and the third return air cylinder 4 is provided with two third return air ports. An air inlet cylinder 5 is provided with an A1 air port 501, an A2 air port 502 and an A3 air port 503. An outdoor air duct 6 is provided at one end of the air inlet cylinder 5 for introducing fresh air from the outside. A purification component is provided at the other end of the air inlet cylinder 5. The purification component has an air outlet channel 11 for filtering the passing air. A B1 is provided in the air outlet channel 11 along its axial direction. The air outlet 12 has a B2 air outlet 13 on its side. The B1 air outlet 12 and the B2 air outlet 13 are used to guide the purified air. The outdoor air duct 6, the three return air cylinders and the air purification component constitute an air purification module. The outdoor air outlet, the A1 air outlet 501, the A2 air outlet 502A3 air outlet 503, the two first return air outlets, the two second return air outlets, the two third return air outlets, the air outlet channel 11, the B1 air outlet 12 and the B2 air outlet 13 are combined with each other to realize the switching of the air purification module function. At the same time, a first air flow reversing component is provided in the air inlet cylinder 5, and a second air flow reversing component is provided in the air outlet channel 11, which are used to allow indoor air or outdoor air to pass through the path currently preset by the air purification module; specifically, the air purification module has the following three paths:

[0062] In the first path, the first airflow reversing component opens the A1 air outlet 501 and simultaneously closes the A2 air outlet 502, and at the same time, the second airflow reversing component opens the B1 air outlet 12 and simultaneously closes the B2 air outlet 13. The outdoor fresh air is sucked into the air outlet 11 by the purification component through the outdoor air duct 6 and the A1 air outlet 501, and then flows into the room through the B1 air outlet 12. The room maintains a slight positive pressure, and the original dirty air in the room is continuously diluted and discharged to the outside, achieving a slight positive pressure of the indoor air, forming a fresh air purification path, and introducing fresh air to continuously dilute and purify the indoor air;

[0063] In the second path, the first airflow reversing component opens the A2 air vent 502 and simultaneously closes the A1 air vent 501, and at the same time, the second airflow reversing component opens the B1 air vent 12 and simultaneously closes the B2 air vent 13. The indoor polluted air first passes through the indoor return air vent 101 and the two first return air vents through the A2 air vent 502 and enters the air inlet 5. The air purification module inhales and purifies the indoor polluted air and then flows into the room through the B1 air vent 12, forming an internal circulation purification path. The indoor polluted air is continuously filtered and purified by the purification module, thereby achieving the purpose of self-circulation purification of the indoor air.

[0064] In the third path, the first air flow reversing component opens the A2 air vent 502 and simultaneously closes the A1 air vent 501; at the same time, the second air flow reversing component opens the B2 air vent 13 and simultaneously closes the B1 air vent 12, and the indoor polluted air enters the air inlet 5 through the indoor return air vent 101, the two first return air vents, and the A2 air vent 502. The air purification module sucks in the indoor polluted air in the air inlet 5 and purifies it, and then passes through the air outlet channel 11 and the B2 air vent 13, returns to the two second return air vents, and flows to the A3 air vent on the air inlet 5 through the two third return air vents. 503, and then flows to the outdoors through the outdoor air duct 6 connected to the air inlet duct 5, so as to achieve the purpose of exhausting air to purify the indoor air; the first return air duct 2, the second return air duct 3 and the third return air duct 4 of the building block type have a simple structure and a clear wind path, which simplifies the structure of the overall air purification module, and through the mutual combination of the air outlets, the air flow path is converted through the cooperation of the first air flow reversing component and the second air flow reversing component, so that a set of fans and main air ducts can realize three modes of internal circulation purification, fresh air purification and exhaust purification, saving installation space.

[0065] The first air flow reversing component includes a first air door 14 rotatably provided on the air inlet tube 5, and is used to make the A1 air outlet 501 and the A2 air outlet 502 both have an open state and a closed state. When the A1 air outlet 501 is in the open state and the A2 air outlet 502 is in the closed state, a fresh air purification path is configured, and when the A1 air outlet 501 is in the closed state and the A2 air outlet 502 is in the open state, an internal circulation purification path or an exhaust air purification path is configured; further, the second air flow reversing component includes a second air door 15 rotatably provided on the air outlet channel 11, and is used to make the B1 air outlet 12 and the B2 air outlet 13 both have an open state or a closed state. When the B1 air outlet 12 is in the open state and the B2 air outlet 13 is in the closed state, a fresh air purification path or an internal circulation purification path is configured, and when the B1 air outlet 12 is in the closed state and the B2 air outlet 13 is in the open state, an exhaust air purification path is configured.

[0066] In this embodiment, a first damper 14 is rotatably provided in the air inlet 5. The first damper 14 is used to control the states of the A1 air outlet 501 and the A2 air outlet 502 in the air inlet 5, thereby switching different purification paths. Specifically:

[0067] When in the fresh air purification path, when the first air door 14 opens the A1 air outlet 501 and closes the A2 air outlet 502, fresh air from the outside can enter the A1 air outlet 501 through the outdoor air duct 6, and be discharged into the room from the B1 air outlet 12 of the air outlet 11 after being purified by the purification component (at this time, the second air door 15 opens the B1 air outlet 12 and closes the B2 air outlet 13), forming a fresh air purification path.

[0068] In the exhaust purification path, when the A1 air outlet 501 is closed and the A2 air outlet 502 is opened, the second air door 15 opens the B2 air outlet 13 and closes the B1 air outlet 12, so that part of the purified air can be discharged from the B2 air outlet 13 to the outside, thereby completing the exhaust purification process;

[0069] In the internal circulation purification path: when the first air door 14 closes the A1 air outlet 501 and opens the A2 air outlet 502, the air collected by the indoor return air outlet 101 will enter the air inlet 5 through the two first air guides through the A2 air outlet 502, and the purification component will purify the air in the air inlet 5. The second air door 15 closes the B2 air outlet 13 and opens the B1 air outlet 12. The purified clean air is then sent back to the indoor space from the B1 air outlet 12 of the air outlet 11, forming an internal air purification cycle.

[0070] The purification component comprises:

[0071] An air inlet bracket 7 is connected to the air inlet tube 5, and the air inlet bracket 7 is provided with a purification filter element;

[0072] The volute assembly includes an upper volute 8 and a lower volute 9 connected to each other, and a centrifugal wind wheel 10 located between the upper volute 8 and the lower volute 9. The upper volute 8 is fixed to the air inlet bracket 7, and the air outlet channel 11 is constructed between the upper volute 8 and the lower volute 9.

[0073] In this embodiment, in order to connect the purification component to the air inlet cylinder 5, the purification component includes an air inlet bracket 7, which is connected to the air inlet cylinder 5 and is equipped with a purification filter element for filtering outdoor or indoor air. The purification filter element can adopt a variety of technologies, such as HEPA (high efficiency particulate air) filter, activated carbon filter layer or other types of filter materials to meet different levels of purification requirements. The upper volute 8 and the lower volute 9 are connected to form a closed space to form an air outlet channel 11, and a centrifugal wind wheel 10 is accommodated in the middle. The function of the centrifugal wind wheel 10 is to generate strong suction through high-speed rotation, suck in air and process it through the purification filter element. The purified air will be discharged from the air outlet channel 11 formed by the upper volute 8 and the lower volute 9.

[0074] A plurality of mounting points are provided at the connection between the air inlet bracket 7 and the air inlet tube 5, and the plurality of mounting points are respectively fixed along the X-axis, Y-axis and Z-axis directions.

[0075] In this embodiment, by setting installation points in three dimensions (X-axis, Y-axis, and Z-axis), the stability of the connection between the air inlet bracket 7 and the air inlet tube 5 can be significantly improved, and it can effectively resist the forces from different directions, ensuring that the purification component can remain stable even when vibration occurs or is affected by external forces during the operation of the equipment. Multi-point fixation helps to improve the sealing of the connection, reduce the possibility of air leakage, and thus ensure purification efficiency.

[0076] The air inlet tube 5 is provided with a third damper 16 for closing or opening the A3 air outlet 503. In the fresh air path or the internal circulation purification path, the third damper 16 closes the A3 air outlet 503. In the fresh air purification path, the third damper 16 opens the A3 air outlet 503.

[0077] In this embodiment, when the air purification module is in the fresh air purification path, the first damper 14 opens the A1 air outlet 501 and synchronously closes the A2 air outlet 502, and the second damper 15 opens the B1 air outlet 12 and synchronously closes the B2 air outlet 13. At this time, a part of outdoor air will exist inside the second return air duct 3 and the third return air duct 4, or when the air purification module is in the internal circulation purification path, the first damper 14 opens the A2 air outlet 502 and synchronously closes the A1 air outlet 501, and the second damper 15 opens the B1 air outlet 12 and synchronously closes the B2 air outlet 13. When there is backflow of outdoor air, a part of outdoor air will exist inside the second return air duct 3 and the third return air duct 4, which may cause abnormal noise in this section of the cavity of the second return air duct 3 and the third return air duct 4 or condensation caused by the temperature difference between indoor and outdoor air. At this time, a third damper 16 is added at the position of the A3 air outlet 503 of the air inlet duct 5 to close the A3 air outlet 503, so as to prevent the noise and condensation problems caused by the backflow of outdoor air.

[0078] The present invention also provides an air conditioner, comprising an air purification module as described above. The specific structure of the air conditioner refers to the above embodiment. Since the air conditioner adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here one by one.

[0079] The present invention also provides an air purification method, comprising the air purification module described above, wherein the air purification module comprises a fresh air purification mode, an internal circulation purification mode and an exhaust air purification mode, and the air purification method comprises the following steps:

[0080] Introduce outdoor air, purify it through the air purification module and then discharge it into the room, and switch the air purification module to the fresh air purification mode;

[0081] Introduce indoor air, purify it through the air module and discharge it into the room, and switch the air purification module to the internal circulation purification mode;

[0082] Indoor air is introduced, and the dirty indoor air is purified by the air purification module and then discharged outdoors, and the air purification module is switched to exhaust purification mode.

[0083] The steps of switching the air purification module to the fresh air purification mode include:

[0084] S1, the first damper 14 opens the A1 vent 501 and closes the A2 vent 502 simultaneously, and the second damper 15 opens the B1 vent 12 and closes the B2 vent 13 simultaneously, and the third damper 16 closes the vent 3, and the outdoor fresh air flows into the room through the outdoor air duct 6, the A1 vent 501, the air outlet 11, and the B1 vent 12 to purify the indoor air;

[0085] The steps of switching the air purification module to the internal circulation purification mode include:

[0086] S2, the first damper 14 opens the A2 vent 502 and synchronously closes the A1 vent 501, and at the same time the second damper 15 opens the B1 vent 12 and synchronously closes the B2 vent 13, and the third damper 16 closes the A3 vent 503, and the indoor polluted air flows into the room through the indoor return air vent 101, the first return air vent, the A2 vent 502, the air outlet 11, and the B1 vent 12, thereby achieving self-circulation purification of the indoor air.

[0087] The steps of switching the air purification module to the exhaust purification mode include:

[0088] S3, the first damper 14 opens the A2 vent 501 and synchronously closes the A1 vent 502, and at the same time the second damper 15 opens the B2 vent 12 and synchronously closes the B1 vent 13, and the third damper 16 opens the A3 vent 503, and the indoor air passes through the indoor return air outlet 101, the two first air guides, the A2 vent 502, the air outlet 11, the B2 vent 13, and then flows to the A3 vent 503 through the two second air guides and the two third air guides, and flows to the outdoors through the outdoor air duct 6, thereby achieving the purpose of exhausting and purifying the indoor air.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An air purification module, characterized in that: include: Mounting plate with indoor return air vents; The return air cylinder assembly comprises a first return air cylinder, a second return air cylinder and a third return air cylinder which are independently arranged on the mounting plate, wherein the first return air cylinder has two first return air ports, the second return air cylinder has two second return air ports, and the third return air cylinder has two third return air ports; An air inlet cylinder is arranged on the mounting plate, and the air inlet cylinder is provided with an A1 air outlet, an A2 air outlet and an A3 air outlet, wherein the A1 air outlet is arranged along the axial direction of the air inlet cylinder, the A2 air outlet and the A3 air outlet are arranged at intervals on the same side of the air inlet cylinder, and the A1 air outlet is located between the A2 air outlet and the A3 air outlet; An outdoor air duct is arranged at one end of the air inlet cylinder; A purification component is arranged at the other end of the air inlet cylinder, and the purification component has an air outlet channel, and a B1 air outlet is arranged in the air outlet channel along its axial direction, and a B2 air outlet is arranged on its side; A first airflow reversing component is movably disposed in the air inlet tube, and is used to alternately open or close the A1 air outlet or the A2 air outlet, so that the A1 air outlet or the A3 air outlet is connected, or the A2 air outlet and the A3 air outlet are independent of each other; A second airflow reversing component, movably disposed in the air outlet channel, for alternately opening or closing the B1 air outlet and the B2 air outlet; Among them, the outdoor air duct, A1 air outlet, air outlet channel, and B1 air outlet are connected in sequence to form a fresh air purification path; The indoor return air outlet, the two first air guide outlets, the A2 air outlet, the air outlet channel, and the B1 air outlet are connected in sequence to form an internal circulation purification path; The indoor return air outlet, two first air guide outlets, the A2 air outlet, the air outlet channel, the B2 air outlet, two second air guide outlets, two third air guide outlets, the A3 air outlet and the outdoor air duct are connected in sequence to form an exhaust purification path.

2. An air purification module according to claim 1, characterized in that: The first air flow reversing component includes a first air door rotatably arranged on the air inlet cylinder, which is used to make the A1 air outlet and the A2 air outlet both have an open state and a closed state. When the A1 air outlet is in the open state and the A2 air outlet is in the closed state, a fresh air purification path is configured. When the A1 air outlet is in the closed state and the A2 air outlet is in the open state, an internal circulation purification path or an exhaust air purification path is configured.

3. An air purification module according to claim 1 or 2, characterized in that: The second air flow reversing component includes a second air door rotatably arranged in the air outlet channel, which is used to make the B1 air outlet and the B2 air outlet both have an open state or a closed state. When the B1 air outlet is in the open state and the B2 air outlet is in the closed state, a fresh air purification path or an internal circulation purification path is configured; when the B1 air outlet is in the closed state and the B2 air outlet is in the open state, an exhaust air purification path is configured.

4. An air purification module according to claim 1, characterized in that: The purification component comprises: An air inlet bracket is connected to the air inlet tube, and the air inlet bracket is provided with a purification filter element; The volute assembly includes an upper volute and a lower volute connected to each other, and a centrifugal wind wheel located between the upper volute and the lower volute. The upper volute is fixed to the air inlet bracket and the air outlet channel is formed between the upper volute and the lower volute.

5. An air purification module as claimed in claim 4, characterized in that: A plurality of mounting points are arranged at the connection between the air inlet bracket and the air inlet cylinder, and the plurality of mounting points are respectively fixed along the X-axis, Y-axis and Z-axis directions.

6. An air purification module according to claim 1, characterized in that: The air inlet tube is provided with a third air door for closing or opening the A3 air outlet. In the fresh air path or the internal circulation purification path, the third air door closes the A3 air outlet, and in the fresh air purification path, the third air door opens the A3 air outlet.

7. An air conditioner, characterized in that: Comprising an air purification module as described in any one of claims 1-6.

8. An air purification method, characterized in that: Based on the air purification module according to any one of claims 1 to 6, the air purification module includes a fresh air purification mode, an internal circulation purification mode and an exhaust air purification mode, and the air purification method includes the following steps: Introduce outdoor air, purify it through the air purification module and then discharge it into the room, and switch the air purification module to the fresh air purification mode; Introduce indoor air, purify it through the air module and discharge it into the room, and switch the air purification module to the internal circulation purification mode; Indoor air is introduced, and the dirty indoor air is purified by the air purification module and then discharged outdoors, and the air purification module is switched to exhaust purification mode.

9. An air purification method according to claim 8, characterized in that: The steps of switching the air purification module to the fresh air purification mode include: S1, the first damper opens the A1 vent and closes the A2 vent at the same time, the second damper opens the B1 vent and closes the B2 vent at the same time, the third damper closes the vent 3, and the outdoor fresh air flows into the room through the outdoor air duct, the A1 vent, the air outlet channel, and the B1 vent to purify the indoor air; The steps of switching the air purification module to the internal circulation purification mode include: S2, the first air door opens the A2 air outlet and synchronously closes the A1 air outlet, and the second air door opens the B1 air outlet and synchronously closes the B2 air outlet, and the third air door closes the A3 air outlet. The indoor polluted air flows into the room through the indoor return air outlet, the first return air outlet, the A2 air outlet, the air outlet channel, and the B1 air outlet, thereby achieving self-circulation purification of the indoor air.

10. An air purification method according to claim 8, characterized in that: The steps of switching the air purification module to the exhaust purification mode include: S3, the first damper opens the A2 vent and closes the A1 vent synchronously, the second damper opens the B2 vent and closes the B1 vent synchronously, the third damper opens the A3 vent, the indoor air flows through the indoor return air outlet, the two first air guides, the A2 vent, the air outlet duct, the B2 vent, and then through the two second air guides, the two third air guides to the A3 vent, and then flows to the outdoors through the outdoor air duct, so as to exhaust and purify the indoor air.

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