Air treatment device and air conditioner

Abstract

The utility model relates to the technical field of air conditioning, and discloses an air treatment device and an air conditioner. The air treatment device comprises a shell, a first air flow channel and a second air flow channel, wherein the shell defines a fresh air inlet, a first indoor outlet and a first turbid air inlet; the first fan is located in the first airflow channel, an inlet of the first fan communicates with the fresh air inlet and / or the first turbid air inlet, and an outlet of the first fan communicates with the first indoor outlet; the first purification device is arranged in the first airflow channel and used for purifying airflow flowing in from the fresh air inlet and / or the first turbid air inlet; the anti-backflow plate is movably arranged at the fresh air inlet and used for opening or closing the fresh air inlet; and the inner purification plate is movably arranged at the first turbid air inlet and used for opening or closing the first turbid air inlet. And through an anti-backflow plate and an inner purification plate, a fresh air treatment mode and a turbid air treatment mode can be flexibly switched according to actual requirements, the requirements of different use scenes are met, mutual influence of fresh air and turbid air is avoided, and the air treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, for example to an air treatment device and an air conditioner. BACKGROUND

[0002] At present, the air tightness of buildings in the industry is getting higher and higher, and people live in the room for a long time, resulting in more and more indoor turbidity, including formaldehyde, CO2, peculiar smell, dust, etc.

[0003] The equipment with fresh air function in the related art can provide fresh air function, which is achieved by introducing outdoor air into the room through a fan or introducing indoor turbid air to the outdoor through a fresh air pipe, thereby improving the indoor air quality.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The equipment with fresh air function in the related art adopts a single air flow channel design, which cannot effectively distinguish the processing of fresh air and indoor turbid air, resulting in an undesirable air purification effect.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide an air treatment device and an air conditioner to improve the effect of air purification.

[0009] The air treatment device provided by the embodiments of the present disclosure comprises: a shell defining a first airflow channel having a fresh air inlet, a first indoor outlet and a first turbid air inlet; a first fan located in the first airflow channel, an inlet of the first fan being in communication with the fresh air inlet and / or the first turbid air inlet, and an outlet of the first fan being in communication with the first indoor outlet; a first purification device arranged in the first airflow channel and used for purifying airflow flowing into the fresh air inlet and / or the first turbid air inlet; an anti-backflow plate movably arranged at the fresh air inlet and used for opening or closing the fresh air inlet; and an inner purification plate movably arranged at the first turbid air inlet and used for opening or closing the first turbid air inlet; wherein when the anti-backflow plate opens the fresh air inlet and the inner purification plate closes the first turbid air inlet, the first fan drives fresh air flowing into the fresh air inlet to flow through the first airflow channel and then flow out to the indoor environment from the first indoor outlet; and when the anti-backflow plate closes the fresh air inlet and the inner purification plate opens the first turbid air inlet, the first fan drives airflow in the indoor environment to flow into the first airflow channel from the first turbid air inlet and then flow out to the indoor environment from the first indoor outlet after being purified by the first purification device.

[0010] Optionally, the anti-backflow plate comprises: a baffle body matched with the fresh air inlet; a rotating shaft passing through the center of the baffle body and arranged at two ends of the baffle body in the radial direction, the rotating shaft being rotationally connected with the shell corresponding to the fresh air inlet; and a first motor drivingly connected with the rotating shaft and used for driving the baffle body to rotate around the rotating shaft to open or close the fresh air inlet; and / or the inner purification plate comprises: a purification plate body matched with the first turbid air inlet; a pivoting shaft arranged at two opposite ends of the purification plate body, the pivoting shaft being rotationally connected with the shell corresponding to the first turbid air inlet; and a second motor drivingly connected with the pivoting shaft and used for driving the purification plate body to rotate around the pivoting shaft to open or close the first turbid air inlet.

[0011] Optionally, the shell comprises: an air inlet shell covering the inlet of the first fan, the air inlet shell defining an air inlet space, an outlet of the air inlet space being in communication with the outlet of the first fan, and the air inlet shell being further provided with the fresh air inlet and the first turbid air inlet in communication with the air inlet space.

[0012] Optionally, the first purification device is arranged between the air inlet space and the inlet of the first fan; and / or the air inlet shell is detachably connected with the volute of the first fan.

[0013] Optionally, the shell further comprises: a first air outlet shell having one end in communication with the outlet of the first fan and the other end provided with the first indoor outlet; wherein the first air outlet shell is connected above the first fan and is arranged in a bent manner.

[0014] Optionally, the housing further defines a second airflow channel with a second turbid air inlet and a turbid air outlet, the turbid air outlet being connected to the outside. The air handling device further includes: a second fan located within the receiving cavity, the second fan being connected between the second turbid air inlet and the turbid air outlet; and a second purification device located within the second airflow channel, used to purify the airflow flowing in through the second turbid air inlet. The second fan is capable of driving indoor airflow from the second turbid air inlet into the second airflow channel and, after being purified by the second purification device, flowing out through the turbid air outlet.

[0015] Optionally, the first fan and the second fan are arranged side by side in a horizontal direction, and the air intake direction of the first fan is opposite to that of the second fan; and / or, it further includes: a fan motor, which is connected to both the first fan and the second fan, for driving the first fan and the second fan to rotate.

[0016] Optionally, when both the first and second fans are connected to a fan motor, the housing further includes: a partition with a motor cavity, the fan motor being located inside the motor cavity, and the motor shafts at opposite ends of the fan motor extending out from opposite sides of the partition; a first cover plate covering one side of the partition and enclosing the first fan cavity with one end of the partition, the impeller of the first fan being located inside the first fan cavity and drivenly connected to one motor shaft of the fan motor; and a second cover plate covering the other side of the partition and enclosing the second fan cavity with the other end of the partition, the impeller of the second fan being located inside the second fan cavity and drivenly connected to the other motor shaft of the fan motor.

[0017] Optionally, the fresh air inlet, the first stale air inlet, and the first indoor outlet are located on the sidewall of the housing in the same direction; and / or, the fresh air inlet is located above the first stale air inlet, and the first indoor outlet is located above the fresh air inlet.

[0018] This disclosure also provides an air conditioner, which includes: a housing defining a receiving cavity; an air handling device as described in any of the above embodiments, located within the receiving cavity; and a heat exchanger and a heat exchange fan, located within the receiving cavity.

[0019] The air handling apparatus and air conditioner provided in this disclosure can achieve the following technical effects:

[0020] The air treatment device provided by the embodiment of the present disclosure can effectively distinguish the treatment of fresh air and indoor turbid air, and improve the air purification effect, by arranging the first air flow channel and the first purification device. The anti-backflow plate arranged movably can effectively prevent outdoor pollutants from flowing back into the indoor, and protect the indoor air quality. When the anti-backflow plate opens the fresh air inlet and the inner purification plate closes the first turbid air inlet, the air treatment device can introduce outdoor fresh air, and quickly improve the indoor air quality. When the anti-backflow plate closes the fresh air inlet and the inner purification plate opens the first turbid air inlet, outdoor gas cannot flow into the indoor, and the indoor air can be purified by the first purification device, so that the indoor gas cannot enter the indoor to affect the indoor temperature, and the air treatment device can perform indoor air circulation and purification. The anti-backflow plate and the inner purification plate arranged movably can flexibly switch the fresh air and turbid air treatment modes according to actual needs, meet the needs of different use scenarios, avoid the mutual influence of fresh air and turbid air, and improve the air treatment effect.

[0021] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and are not intended to be limiting of the embodiments, in which like reference numerals refer to like elements in the drawings and in which:

[0023] Figure 1 is a structural schematic diagram of an air conditioner provided by an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of an air treatment device provided by an embodiment of the present disclosure from one perspective;

[0025] Figure 3 is a structural schematic diagram of an air treatment device provided by an embodiment of the present disclosure from another perspective;

[0026] Figure 4 is a partial structural schematic diagram of an air treatment device provided by an embodiment of the present disclosure;

[0027] Figure 5 is a partial structural schematic diagram of another air treatment device provided by an embodiment of the present disclosure;

[0028] Figure 6 is a partial structural schematic diagram of another air treatment device provided by an embodiment of the present disclosure;

[0029] Figure 7 is a cross-sectional structural schematic diagram of an air treatment device provided by an embodiment of the present disclosure;

[0030] Figure 8 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0031] Figure 9 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0032] Figure 10 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0033] Figure 11 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0034] Figure 12 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0035] Figure 13 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure;

[0036] Figure 14 is a partial structural schematic view of another air treatment device provided by an embodiment of the present disclosure.

[0037] Reference signs:

[0038] 10, housing; 101, fresh air inlet; 102, first indoor outlet; 103, first turbid air inlet; 104, second indoor outlet; 105, turbid air outlet; 106, air inlet housing; 107, first air outlet housing; 201, first fan; 202, second fan; 203, first purification device; 204, second purification device; 205, fan motor; 206, partition; 207, first cover plate; 208, second cover plate; 30, anti-backflow plate; 301, first motor; 40, inner purification plate; 401, second motor; 50, air duct switching plate; 501, second air outlet housing; 502, third air outlet housing; 503, conversion housing; 60, outer shell; 601, heat exchange air inlet; 701, fresh air inlet pipe; 702, fresh air outlet pipe. DETAILED DESCRIPTION

[0039] In order to enable persons skilled in the art to more fully understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are used only for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0040] The terms "first", "second", etc. in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances to describe the present disclosure herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0041] In the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present disclosure can be understood according to the specific circumstances.

[0042] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0043] Unless otherwise specified, the term "a plurality of" means two or more.

[0044] The term "and / or" is a description of the association relationship of the object, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, three relationships.

[0045] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0046] Figure 7 The solid line in the first air flow passage indicates the flow direction of the air flow from the first turbid air inlet, the thick solid line indicates the flow direction of the fresh air flowing from the fresh air inlet in the first air flow passage, and the dashed line indicates the flow direction of the air flow from the second indoor outlet in the second air flow passage. Figure 3 The arrow in the second air flow passage indicates the flow direction of the air flow from the turbid air outlet in the second air flow passage.

[0047] In combination Figures 1 to 14As shown, embodiments of this disclosure provide an air handling device, such as... Figures 2 to 6 As shown, the air handling unit includes a housing 10, a first fan 201, and a first purification device 203. The housing 10 defines a first airflow channel having a fresh air inlet 101, a first indoor outlet 102, and a first stale air inlet 103. The first fan 201 is located within the first airflow channel, with its inlet connected to the fresh air inlet 101 and / or the first stale air inlet 103, and its outlet connected to the first indoor outlet 102. The first purification device 203 is disposed within the first airflow channel and is used to purify the airflow flowing into the fresh air inlet 101 and / or the first stale air inlet 103. Here, the fresh air inlet is connected to the outside, and both the first indoor outlet and the first stale air inlet are connected to the interior.

[0048] In this embodiment, the first fan 201 drives outdoor airflow into the first airflow channel and then into the room through the first indoor outlet 102, providing fresh air to the room. The first fan 201 also drives indoor airflow into the first airflow channel from the first stale air inlet 103, and after purification through the first airflow channel, it flows into the room through the first indoor outlet 102. Thus, the air handling device, by setting up the first airflow channel and the first purification device 203, can effectively distinguish between fresh air and stale indoor air. Fresh air flows in from the fresh air inlet 101, passes through the first airflow channel, and is purified by the first purification device 203 before being sent into the room through the first indoor outlet 102. This provides fresh air to the room while also purifying impurities, ensuring indoor air quality. Stale indoor air flows in from the first stale air inlet 103, is purified by the first purification device 203, and then returns to the room through the first indoor outlet 102. This separation process significantly improves the air purification effect, ensuring continuous optimization of indoor air quality. In addition, the first airflow channel can simultaneously connect with the fresh air inlet and the first stale air inlet, allowing fresh air and indoor stale air to flow in at the same time, thus regulating the fresh air temperature.

[0049] The inlet of the first fan 201 is connected to the fresh air inlet 101 and / or the first stale air inlet 103, allowing the device to flexibly switch between fresh air mode and internal circulation mode according to actual needs. In fresh air mode, the device introduces fresh outdoor air; in internal circulation mode, the device purifies indoor air. This flexible airflow control method can meet the air handling needs of different scenarios. Through reasonable design of airflow channels and fan layout, the air handling unit can effectively reduce energy consumption during operation. At the same time, the first purification device 203 has a long service life, reducing the cost and resource waste of frequent filter replacements, making it more energy-efficient and environmentally friendly.

[0050] In addition, the fresh air inlet 101, the first dirty air inlet 103 and the first indoor outlet 102 of the casing 10 are integrated in the same air flow channel, which is compact in structure, easy to install and space layout. Moreover, the first purification device 203 and the fan are modularly designed, which is easy to disassemble and maintain, and prolongs the service life of the device.

[0051] Optionally, the first purification device 203 comprises a high-efficiency filter. For example, the first purification device 203 comprises a HEPA filter, activated carbon adsorption, etc.

[0052] In the embodiments of the present disclosure, the first purification device 203 is arranged in the first air flow channel, and is used to purify the indoor dirty air flowing from the first dirty air inlet 103 and / or the fresh air flowing from the fresh air inlet 101. Through multi-layer filtration or high-efficiency purification technology, the particulate matter, odor and harmful substances in the air can be effectively removed, and the cleanliness of the indoor air is further improved.

[0053] Optionally, the air treatment device further comprises an anti-backflow plate 30 and an internal purification plate 40. The anti-backflow plate 30 is movably arranged at the fresh air inlet 101, and is used to open or close the fresh air inlet 101. The internal purification plate 40 is movably arranged at the first dirty air inlet 103, and is used to open or close the first dirty air inlet 103. When the anti-backflow plate 30 opens the fresh air inlet 101 and the internal purification plate 40 closes the first dirty air inlet 103, the first fan 201 drives the fresh air flowing from the fresh air inlet 101 to flow through the first air flow channel and then flows out from the first indoor outlet 102 to the indoor. When the anti-backflow plate 30 closes the fresh air inlet 101 and the internal purification plate 40 opens the first dirty air inlet 103, the first fan 201 drives the air flow in the indoor to flow from the first dirty air inlet 103 into the first air flow channel, and then flows out from the first indoor outlet 102 to the indoor after being purified by the first purification device 203.

[0054] In the embodiments of the present disclosure, the anti-backflow plate 30 is movably arranged at the fresh air inlet 101 and can open or close the fresh air inlet 101 as needed. When the outdoor air quality is poor (such as haze, dust, etc.), the anti-backflow plate 30 closes the fresh air inlet 101, effectively preventing outdoor pollutants from flowing back into the indoor environment, and ensuring the cleanliness of indoor air. This design significantly enhances the environmental adaptability of the air treatment device, especially in heavily polluted areas. The inner purification plate 40 is movably arranged at the first turbid air inlet 103 and can open or close the first turbid air inlet 103 as needed. When the anti-backflow plate 30 closes the fresh air inlet 101 and the inner purification plate 40 opens the first turbid air inlet 103, the device enters the internal circulation mode, and the first fan 201 drives indoor air to flow from the first turbid air inlet 103, purifies it through the first purification device 203, and then sends it back to the indoor environment through the first indoor outlet 102. This mode can efficiently purify indoor air and is suitable for scenarios where outdoor air quality is poor or rapid improvement of indoor air quality is needed. Through the coordinated work of the anti-backflow plate 30 and the inner purification plate 40, the air treatment device can flexibly switch between the fresh air mode and the internal circulation mode according to actual needs. In the fresh air mode, the anti-backflow plate 30 opens the fresh air inlet 101, and the inner purification plate 40 closes the first turbid air inlet 103, and the device introduces outdoor fresh air; in the internal circulation mode, the anti-backflow plate 30 closes the fresh air inlet 101, and the inner purification plate 40 opens the first turbid air inlet 103, and the device purifies indoor air in a circulating manner. This flexible mode switching function can meet the air treatment needs in different scenarios and improve user experience.

[0055] In addition, the design of the anti-backflow plate 30 and the inner purification plate 40 enables the air treatment device to automatically select the optimal operating mode according to the indoor and outdoor air quality, avoiding unnecessary energy consumption. For example, when the outdoor air quality is good, the fresh air mode is preferred; when the outdoor air quality is poor, the internal circulation mode is automatically switched to, reducing the introduction of outdoor pollutants and reducing energy consumption. Moreover, the anti-backflow plate 30 and the inner purification plate 40 are designed to be movable, simple in structure and easy to realize automatic control. Through motor-driven or manual adjustment, the opening and closing states of the fresh air inlet 101 and the first turbid air inlet 103 can be quickly and accurately controlled, ensuring efficient operation of the air treatment device. By adding the anti-backflow plate 30 and the inner purification plate 40, the air treatment device not only has the functions of anti-backflow and internal circulation purification, but also realizes flexible air flow mode switching and energy-efficient operation, significantly improving the practicality, environmental adaptability and user experience of the device.

[0056] Optionally, the anti-backflow plate 30 comprises a baffle body, a rotating shaft and a first motor 301, the baffle body is matched with the fresh air inlet 101; the rotating shaft passes through the center of the baffle body and is arranged at the two ends of the baffle body in the radial direction, the rotating shaft is rotationally connected with the shell 10 corresponding to the fresh air inlet 101; the first motor 301 is drivingly connected with the rotating shaft, and is used to drive the baffle body to rotate around the rotating shaft by driving the rotating shaft, so as to open or close the fresh air inlet 101.

[0057] In the embodiments of the present disclosure, the baffle body is matched with the size and shape of the fresh air inlet 101, ensuring that the baffle body can completely cover the fresh air inlet 101. The anti-backflow plate 30 is driven by the first motor 301, which can realize the automatic opening and closing of the anti-backflow plate 30, realize automatic control, and users can remotely adjust the opening and closing state of the fresh air inlet 101 through the control panel, remote controller or smart device (such as mobile phone APP), without manual operation. In addition, the air treatment device can integrate sensors (such as air quality sensors, temperature and humidity sensors), and automatically control the opening and closing of the anti-backflow plate 30 according to real-time environmental data, realize intelligent operation, and significantly improve the user experience. The baffle body can rotate around the rotating shaft under the drive of the first motor 301, ensuring accurate control of the opening and closing of the fresh air inlet 101, avoiding the problem of air leakage or airflow mixing caused by incomplete closing of the anti-backflow plate 30, and improving the sealing performance and operating efficiency of the air treatment device. Moreover, the baffle body does not occupy additional space when rotating, and can rotate in the fresh air inlet 101 to open or close the fresh air inlet 101. The overall structure is compact, which is convenient for integration into the air treatment device, and does not affect the appearance design and space layout of the device. The driving connection mode of the baffle body and the rotating shaft through the first motor 301 is simple and reliable, reduces the failure rate, and prolongs the service life of the device.

[0058] Optionally, the baffle body can be made of corrosion-resistant and wear-resistant materials to further improve its durability.

[0059] Optionally, the inner purification plate 40 comprises a purification plate body, a pivot shaft and a second motor 401, the purification plate body is matched with the first turbid air inlet 103; the pivot shaft is arranged at the two opposite ends of the purification plate body, and the pivot shaft is rotationally connected with the shell 10 corresponding to the first turbid air inlet 103; the second motor 401 is drivingly connected with the pivot shaft, and is used to drive the purification plate body to rotate around the pivot shaft by driving the pivot shaft, so as to open or close the first turbid air inlet 103.

[0060] In the embodiments of the present disclosure, the purification plate body is matched with the first turbid air inlet 103, so that the inner purification plate 40 can be completely closed to avoid air leakage. The inner purification plate 40 is also driven by the second motor 401, and automatic control can be realized. The user can remotely adjust the opening and closing state of the fresh air inlet 101 through the control panel, remote controller or smart device (such as mobile phone APP), without manual operation. In addition, the air treatment device can integrate sensors (such as air quality sensors, temperature and humidity sensors), and automatically control the opening and closing of the inner purification plate 40 according to real-time environmental data, realize intelligent operation, and significantly improve the user experience. The pivot shaft is arranged at the opposite ends of the purification plate body, and the pivot shaft is rotatably connected with the shell 10 corresponding to the first turbid air inlet 103; the second motor 401 is drivingly connected with the pivot shaft, so as to ensure the precise control of the opening and closing of the first turbid air inlet 103, avoid air leakage or air mixing caused by incomplete closing of the inner purification plate 40, and improve the sealing performance and operation efficiency of the air treatment device.

[0061] Optionally, as shown in Figure 6 The shell 10 includes an air inlet shell 106, which covers the inlet of the first fan 201. The air inlet shell 106 defines an air inlet space, the outlet of which is in communication with the outlet of the first fan 201. The air inlet shell 106 is also provided with a fresh air inlet 101 and a first turbid air inlet 103 in communication with the air inlet space. Here, the first air flow channel includes the air inlet space.

[0062] In the embodiments of the present disclosure, the air inlet shell 106 covers and communicates with the inlet of the first fan 201, so that the air flow flowing into the fresh air inlet 101 and / or the first turbid air inlet 103 can flow more into the first fan 201, avoiding air flow disorder and air leakage, improving the air inlet efficiency of the first fan 201, and ensuring that the air flow can smoothly flow to the first indoor outlet 102 after entering the first fan 201. By optimizing the air flow path, the air flow resistance is reduced, the operation efficiency of the first fan 201 is improved, and the noise and energy consumption are reduced. The air inlet shell 106 can effectively concentrate and manage the fresh air and turbid air before entering the first fan 201, avoiding air flow dispersion and energy loss, and improving the air flow treatment efficiency of the device.

[0063] Optionally, the first purification device 203 is arranged between the air inlet space and the inlet of the first fan 201.

[0064] In the embodiments of the present disclosure, the first purification device 203 is arranged upstream of the inlet of the first fan 201, so that the airflow driven by the first fan 201 all flows through the first purification device 203 for purification. In this way, whether the air inlet of the fresh air inlet 101 or the air inlet of the first turbid air inlet 103, the airflow flowing in will all flow through the first purification device 203 for purification before flowing into the first fan 201, and then flow into the room from the first indoor outlet 102 under the driving of the first fan 201, so as to ensure the purification quality of the airflow flowing into the room.

[0065] Optionally, the first purification device 203 comprises a plurality of filtering members, and the plurality of filtering members comprise a pre-filter screen or a primary purification device and a high-efficiency filtration device arranged in sequence along the flow direction of the airflow in the air inlet space. In this way, the pre-filter screen or the primary purification device is used to intercept large-particle pollutants or preliminarily purify the airflow, so as to protect the first fan 201 from pollution and prolong the service life of the fan, and the high-efficiency filtration device can further sterilize dust, bacteria and the like in the airflow. The pre-filter screen or the primary purification device can reduce the purification pressure of the high-efficiency filtration device and prolong the service life.

[0066] Optionally, the air inlet shell 106 is detachably connected with the volute of the first fan 201.

[0067] In the embodiments of the present disclosure, the air inlet shell 106 is detachably connected with the volute of the first fan 201, so as to improve the connection stability of the air inlet shell 106 and the first fan 201, and avoid shaking or moving of the air inlet shell 106 or the first fan 201 under the driving of the airflow. Moreover, the connection of the air inlet shell 106 with the first fan 201 can also ensure the sealing of the air inlet shell 106 and the first fan 201, so as to avoid air leakage. The detachable connection of the air inlet shell 106 with the first fan 201 facilitates the disassembly of the air inlet shell 106 and the first fan 201, and further facilitates the maintenance and replacement. At the same time, it is also convenient for regular cleaning and replacement of the first purification device 203 or the first fan 201. The modular design not only simplifies the maintenance process, but also prolongs the service life of the air treatment device and reduces the long-term use cost.

[0068] Optionally, the air inlet shell 106 is snap-connected or screw-connected with the volute of the first fan 201.

[0069] Optionally, the first purification device 203 is detachably connected with the volute of the first fan 201, and / or the first purification device 203 is detachably connected with the air inlet shell 106, so as to facilitate the maintenance and replacement of the first purification device 203.

[0070] Optionally, the first purification device 203 is arranged at the inlet of the first fan 201, and is used for purifying the airflow flowing into the first fan.

[0071] Optionally, the shell 10 further comprises a first air outlet shell 107, one end of the first air outlet shell 107 is in communication with the outlet of the first fan 201, and the other end is provided with a first indoor outlet 102; wherein the first air outlet shell 107 is communicated above the first fan 201 and is arranged in a bent manner. Here, the first air flow channel further comprises a channel in the first air outlet shell 107.

[0072] In the embodiment of the present disclosure, the outlet of the first fan 201 discharges air through the bent first air outlet shell 107, so that the direction of the outlet of the first fan 201 is adjustable, which can adapt to different space layouts, discharge air in the direction required by the user, increase the flexibility of air discharge, and thus improve the installation popularity of the air treatment device. And make full use of the vertical space, reduce the horizontal floor area of the air treatment device.

[0073] Optionally, the first air flow channel comprises an air inlet space, a channel in the volute of the first fan, and a channel in the first air outlet shell arranged in sequence along the air flow direction.

[0074] Optionally, as shown in Figures 6 to 14 The shell 10 further comprises a second air flow channel with a second dirty air inlet and a dirty air outlet 105, the dirty air outlet 105 is in communication with the outdoor, and the air treatment device further comprises a second fan 202, the second fan 202 is located in the containing cavity, and the second fan 202 is communicated between the second dirty air inlet and the dirty air outlet 105; the second fan 202 can drive the indoor air flow to flow into the second air flow channel from the second dirty air inlet and then flow out from the dirty air outlet 105. Here, the second dirty air inlet is in communication with the indoor, and the dirty air outlet 105 is in communication with the outdoor.

[0075] In the embodiment of the present disclosure, the second air flow channel is used to treat indoor dirty air, and the second fan 202 can drive the indoor dirty air to flow into the second air flow channel through the second dirty air inlet, and then be discharged to the outdoor through the dirty air outlet 105, so that indoor exhaust can be realized. This independent air flow channel design avoids the mixing of dirty air and fresh air, ensures the cleanliness of indoor air, and reduces the pollution to the outdoor environment. Through the dirty air discharge function of the second air flow channel, the device can quickly discharge the dirty air in the room, avoiding the accumulation of pollutants in the room. By providing the second air flow channel and the second fan 202, the air treatment mode of the air treatment device is further increased, the fresh air in the first air flow channel flows into the room to supplement the fresh air, and the second air flow channel can discharge dirty air to the outdoor, thereby improving the air flow circulation between the indoor and outdoor, and quickly improving the indoor air quality. When the first air flow channel circulates, the air flow flowing into the room through the first dirty air inlet 103 flows into the room through the first purification device 203, and the air flow of the second air flow channel can exhaust to the outdoor, which also improves the indoor air quality.

[0076] Optionally, the air treatment device further comprises a second purification device 204 arranged in the second air flow channel and configured to purify the air flow flowing into the second turbid air inlet, and the second air blower 202 is capable of driving the air flow in the room to flow into the second air flow channel from the second turbid air inlet, pass through the second purification device 204 for purification, and then flow out of the turbid air outlet 105.

[0077] In the embodiments of the present disclosure, the second air flow channel is used to treat the turbid air in the room, the second air blower 202 is capable of driving the turbid air in the room to flow into the second air flow channel from the second turbid air inlet, and then flow out of the turbid air outlet 105 to the outside of the room after being purified by the second purification device 204, so that the exhaust of the room can be achieved. The purification function of the second purification device 204 further improves the cleanliness of the air in the room, and provides a more healthy and comfortable air environment for the user. By arranging the second air flow channel, the second air blower 202 and the second purification device 204, the air treatment mode of the air treatment device is further increased, the fresh air in the first air flow channel flows into the room to supplement the fresh air, and the second air flow channel can discharge the turbid air to the outside of the room, thereby improving the air flow circulation between the inside and outside of the room and rapidly improving the air quality in the room.

[0078] Optionally, the shell 10 is further provided with a second indoor outlet 104, the second indoor outlet 104 is in communication with the second air flow channel, and the air treatment device further comprises an air duct switching plate 50 movably arranged in the second air flow channel and configured to adjust the outlet of the second air blower 202 to be in communication with the turbid air outlet 105 or the outlet of the second air blower 202 to be in communication with the second indoor outlet 104, so that the second air blower 202 drives the air flow flowing into the second turbid air inlet to flow to the outside of the room from the turbid air outlet 105 or to flow to the room through the second indoor outlet 104. Here, the second indoor outlet is in communication with the room.

[0079] In the embodiments of the present disclosure, the air duct switching plate 50 is movably arranged in the second air flow channel, and can adjust the communication state of the outlet of the second fan 202 with the turbid air outlet 105 or the second indoor outlet 104 according to actual needs. When the air duct switching plate 50 communicates the outlet of the second fan 202 with the turbid air outlet 105, the air treatment device enters the turbid air discharge mode, and the indoor turbid air is discharged to the outdoor after being purified; when the air duct switching plate 50 communicates the outlet of the second fan 202 with the second indoor outlet 104, the air treatment device enters the internal circulation mode, and the purified air flow is sent back to the indoor. This flexible mode switching function can meet the air treatment needs in different scenes, improve the practicability of the device, and improve the air treatment efficiency and energy utilization rate. Moreover, through the arrangement of the air duct switching plate 50, the communication of the outlet of the second fan 202 with the turbid air outlet 105 or the second indoor outlet 104 can be flexibly adjusted, the controllable adjustment of the air flow direction is realized, and thus the flexibility and diversity of air treatment are improved, and the efficiency of air treatment is improved. Through the design of the air duct switching plate 50, the second air flow channel can not only discharge turbid air, but also send the purified air flow back to the indoor. This dual-function integration enables the device to realize the dual effects of turbid air discharge and internal circulation purification in a single structure, saving space and cost. Moreover, the air duct switching plate 50 enables the air treatment device to automatically select the optimal operation mode according to the indoor and outdoor air quality. For example, when the outdoor air quality is poor, the air treatment device can be switched to the internal circulation mode to avoid the introduction of outdoor pollutants; when the indoor air quality is poor, the air treatment device can be switched to the turbid air discharge mode to quickly discharge the indoor dirty air. This intelligent operation mode not only improves the air treatment efficiency, but also reduces the energy consumption, and is more energy-saving and environment-friendly.

[0080] In one specific embodiment, when the anti-backflow plate 30 opens the fresh air inlet 101, the internal purification plate 40 closes the first turbid air inlet 103, and the air duct switching plate 50 is switched to communicate the outlet of the second fan 202 with the turbid air outlet 105, the air treatment device operates in the hyper-ventilation mode, the outdoor fresh fresh air flows to the indoor through the fresh air inlet 101, the first air flow channel and the first indoor outlet 102, to supplement fresh air for the indoor, and at the same time, the turbid air in the indoor flows into the second air flow channel through the second turbid air inlet, and then is discharged to the outdoor from the turbid air outlet, so that the air can be quickly exchanged, and thus the indoor air quality can be quickly improved.

[0081] In another specific embodiment, when the anti-inversion plate 30 opens the fresh air inlet 101, the inner purification plate 40 closes the first turbid air inlet 103, and the air duct switching plate 50 switches to the second air outlet of the second fan 202 to be communicated with the second indoor outlet 104, the air treatment device runs in the fresh and clean oxygen mode. The outdoor fresh air flows to the indoor through the fresh air inlet 101, the first airflow channel and the first indoor outlet 102, to supplement the fresh air in the indoor, and the turbid air in the indoor flows into the second airflow air duct through the second turbid air inlet, is purified by the second purification device 204, and then flows to the indoor from the second indoor outlet 104. In this way, the air treatment device can simultaneously supplement the fresh air and purify the indoor airflow, and simultaneously realize the functions of fresh air and purification.

[0082] In another specific embodiment, when the anti-inversion plate 30 closes the fresh air inlet 101, the inner purification plate 40 opens the first turbid air inlet 103, and the air duct switching plate 50 switches to the second air outlet of the second fan 202 to be communicated with the turbid air outlet 105, the air treatment device runs in the fast and clean odor mode. The turbid air in the indoor flows to the indoor through the first turbid air inlet 103, the first airflow channel and the first indoor outlet 102, to purify the indoor airflow, and the turbid air in the indoor flows into the second airflow air duct through the second turbid air inlet, and then is discharged to the outdoor from the turbid air outlet. In this way, the turbid air in the indoor can be discharged, and the indoor purification and the discharge of the turbid air to the outdoor are simultaneously performed, and the indoor odor can be quickly discharged through the indoor purification and the discharge.

[0083] In another specific embodiment, when the anti-inversion plate 30 closes the fresh air inlet 101, the inner purification plate 40 opens the first turbid air inlet 103, and the air duct switching plate 50 switches to the second air outlet of the second fan 202 to be communicated with the second indoor outlet 104, the air treatment device runs in the super purification mode. The turbid air in the indoor flows to the indoor through the first turbid air inlet 103, the first airflow channel and the first indoor outlet 102, to purify the indoor airflow, and the turbid air in the indoor flows into the second airflow air duct through the second turbid air inlet, and then flows to the indoor from the second indoor outlet 104. In this way, the turbid air in the indoor can be simultaneously purified by the turbid air fan, and quickly purified.

[0084] Optionally, the turbid air outlet 105 and the second indoor outlet 104 are different in the air outlet direction in the horizontal plane.

[0085] In the embodiments of the present disclosure, the turbid air outlet 105 and the second indoor outlet 104 are different in the air outlet direction in the horizontal plane, which can meet the demand of airflow direction for different space layouts, and improve the adaptability and practicality of air treatment. The air treatment device of the embodiments of the present disclosure effectively solves the technical problems of single airflow direction, insufficient switching of turbid air discharge and indoor circulation, and single air outlet direction, significantly improves the flexibility and efficiency of air treatment, and meets the demand of diversified use scenarios.

[0086] Optionally, asFigure 13 and Figure 14 As shown in the figure, the shell 10 defines a second fan cavity, an impeller of the second fan 202 rotates in the second fan cavity, the shell 10 includes a second air outlet shell 501 and a third air outlet shell 502, the second air outlet shell 501 defines a first exhaust passage with a turbid air outlet 105, an inlet of the first exhaust passage is in communication with an outlet of the second fan cavity; the third air outlet shell 502 defines a second exhaust passage with a second indoor outlet 104, an inlet of the second exhaust passage is in communication with the outlet of the second fan cavity; wherein the air duct switching plate 50 can move between a first position and a second position, when the air duct switching plate 50 moves to the first position, the air duct switching plate 50 closes the inlet of the second exhaust passage, so that the outlet of the second fan cavity is in communication with the first exhaust passage; when the air duct switching plate 50 moves to the second position, the air duct switching plate 50 closes the inlet of the first exhaust passage, so that the outlet of the second fan cavity is in communication with the second exhaust passage.

[0087] In the embodiment of the present disclosure, the second air outlet shell 501 and the third air outlet shell 502 respectively define a first exhaust passage with a turbid air outlet 105 and a second exhaust passage with a second indoor outlet 104. This double passage design enables the air treatment device to flexibly select the air flow path according to the actual demand, realizes the functions of turbid air discharge or internal circulation purification, and meets the air treatment demand in different scenes. Through the intelligent control of the air duct switching plate 50, the air treatment device can automatically select the optimal operation mode according to the indoor and outdoor air quality, and through the movement of one air duct switching plate 50, the communication of the two exhaust passages with the second fan 202 can be realized.

[0088] Optionally, the shell 10 further includes a conversion shell 503, the conversion shell 503 defines a conversion cavity, the conversion cavity is in communication between the outlet of the second fan cavity and the inlets of the first exhaust passage and the second exhaust passage; wherein the air duct switching plate 50 is movably arranged in the conversion cavity.

[0089] In the embodiment of the present disclosure, the outlet of the second fan 202 is in communication with the first exhaust passage and the second exhaust passage through the conversion cavity, which facilitates the arrangement of the air duct switching plate, so that the outlet of the second fan 202 can be in communication with the first exhaust passage or the second exhaust passage through one air duct switching plate.

[0090] Optionally, the bottom of the conversion cavity is in communication with the outlet of the second fan cavity, the top of the conversion cavity is in communication with the first exhaust passage, and the side of the conversion cavity is in communication with the second exhaust passage; wherein when the air duct switching plate 50 moves to the first position, the air duct switching plate 50 is shielded between the side of the conversion cavity and the inlet of the second exhaust passage; when the air duct switching plate 50 moves to the second position, the air duct switching plate 50 is shielded between the top of the conversion cavity and the inlet of the first exhaust passage.

[0091] In the embodiment of the present disclosure, the conversion cavity is communicated at the top of the second fan 202, and the first exhaust channel and the second exhaust channel are respectively communicated at the top and the side of the conversion cavity, so that the setting positions of the first exhaust channel and the second exhaust channel do not interfere with each other, and the turbid air outlet 105 and the second indoor outlet 104 are respectively oriented in different directions, thereby realizing multi-directional air outlet of the air treatment device.

[0092] Optionally, the extension direction of the first exhaust channel is opposite to the extension direction of the second exhaust channel.

[0093] In the embodiment of the present disclosure, the extension directions of the two exhaust channels are opposite, so that the air outlet directions of the turbid air outlet 105 and the second indoor outlet 104 are opposite, so that the turbid air outlet 105 is generally communicated with the external fresh air pipe and close to the wall, the second indoor outlet 104 is oriented towards the indoor and opposite to the air outlet direction of the turbid air outlet 105, which can not only ensure the air outlet range, but also improve the appearance of the air treatment device.

[0094] Optionally, the air treatment device further comprises a driving device, which is drivingly connected with the air duct switching plate 50 and used for driving the air duct switching plate 50 to move.

[0095] In the embodiment of the present disclosure, the air duct switching plate 50 is driven to move by the driving device, so that the automatic control of the air duct switching plate 50 can be realized, thereby improving the intelligent work of the air treatment device.

[0096] Optionally, the first fan 201 and the second fan 202 are arranged side by side in the horizontal direction, and the air inlet directions of the first fan 201 and the second fan 202 are opposite.

[0097] In the embodiment of the present disclosure, the first fan 201 and the second fan 202 are arranged side by side and the air outlet directions are opposite, so that the space occupied by the first fan 201 and the second fan 202 in the height direction can be reduced, the first fan 201 and the second fan 202 are facilitated to be arranged, and the air inlets and outlets of the two fans do not interfere with each other, so that when the two fans work at the same time, the air inlets and outlets can be guaranteed. Moreover, the space occupied by the two fans can be reduced, the structure of the air treatment device is more compact, and the air treatment device is facilitated to be integrated with other devices.

[0098] Optionally, the air inlet direction of the first fan 201 is rearward, and the air inlet direction of the second fan 202 is forward. Since the first fan 201 can be communicated with the fresh air inlet 101, the first fan 201 is arranged rearward, which not only facilitates the communication with the fresh air pipe, but also reduces the length of the fresh air pipe and the arrangement of the pipeline, thereby improving the installation appearance of the air treatment device.

[0099] Optionally, the air treatment device further comprises a fan motor 205, which is connected with the first fan 201 and the second fan 202, and used to drive the first fan 201 and the second fan 202 to rotate.

[0100] In the embodiments of the present disclosure, the first fan 201 and the second fan 202 are driven by one fan motor 205, so that the space occupied by the fan and the fan motor 205 can be further reduced, the structure is more compact, the integration with other devices is facilitated, the occupied area is reduced, the use diversity is improved, and the user experience is improved.

[0101] Optionally, when the first fan 201 and the second fan 202 are connected with the fan motor 205, the shell 10 further comprises a partition plate 206, a first cover plate 207 and a second cover plate 208. The partition plate 206 is configured with a motor cavity, the fan motor 205 is located in the motor cavity, and the motor shafts at the opposite ends of the fan motor 205 respectively extend out of the opposite sides of the partition plate 206. The first cover plate 207 is coveringly arranged on one side of the partition plate 206, and surrounds a first fan cavity with one end of the partition plate 206. The impeller of the first fan 201 is located in the first fan cavity and is drivingly connected with one motor shaft of the fan motor 205. The second cover plate 208 is coveringly arranged on the other side of the partition plate 206, and surrounds a second fan cavity with the other end of the partition plate 206. The impeller of the second fan 202 is located in the second fan cavity and is drivingly connected with the other motor shaft of the fan motor 205.

[0102] In the embodiments of the present disclosure, the two fans are arranged on the two sides of the partition plate 206, and are coveringly arranged by the first cover plate 207 and the second cover plate 208. In this way, the two fans, the fan motor 205 and the corresponding volutes of the two fans can be connected to form an integrated structure, which facilitates the installation, movement and disassembly of the whole. Moreover, the cooperation of the two fans with the fan motor 205 is facilitated, so as to realize the rotation of the two fans driven by one fan motor 205.

[0103] Optionally, the fresh air inlet 101 and the dirty air outlet 105 are located on the same side wall of the shell 10.

[0104] In the embodiments of the present disclosure, the fresh air inlet 101 and the dirty air outlet 105 are both in communication with the outside, so the fresh air inlet 101 and the dirty air outlet 105 are arranged on the same side wall of the shell 10, so as to be in communication with the fresh air pipe connected with the outside, and the appearance of the air treatment device is improved.

[0105] For example, the fresh air inlet 101 and the dirty air outlet 105 are located on the rear side wall of the shell 10.

[0106] Optionally, the fresh air inlet 101, the first dirty air inlet and the first indoor outlet 102 are located on the same side wall of the shell 10.

[0107] In the embodiments of the present disclosure, the first indoor outlet 102 is also arranged on the same side wall as the fresh air inlet 101 and the first turbid air inlet, so that the first indoor outlet 102 is convenient to cooperate with the air outlet of the first fan 201, and can be separated from the second indoor outlet 104 to avoid the air out of the two air outlets interfering with each other.

[0108] For example, the fresh air inlet 101, the first turbid air inlet and the first indoor outlet 102 are all located on the rear side wall of the shell.

[0109] Optionally, the fresh air inlet 101 is located above the first turbid air inlet, and the first indoor outlet 102 is located above the fresh air inlet 101.

[0110] In the embodiments of the present disclosure, the first turbid air inlet is located below the fresh air inlet 101, and the first indoor outlet 102 is located above the fresh air inlet 101, so that the first turbid air inlet and the first indoor outlet 102 can be separated to avoid the air out of the first indoor outlet 102 interfering with the air into the first turbid air inlet.

[0111] Optionally, the second indoor outlet 104 and the first indoor outlet 102 are located on the opposite side walls of the shell 10. In this way, the second fan 202 can be conveniently communicated with the second indoor outlet 104, and the direction of indoor air outflow can be increased to improve the air outflow range and thus improve the air treatment efficiency.

[0112] Optionally, the fresh air inlet 101, the first turbid air inlet and the first indoor outlet 102 are located on the rear side wall of the shell 10, and the second indoor outlet 104 is located on the front side wall of the shell 10.

[0113] Optionally, the second turbid air inlet is arranged on the side wall corresponding to the air inlet side of the second fan 202, or the second turbid air inlet includes a gap of the shell 10, or the second turbid air inlet includes an air inlet of an external device.

[0114] In the embodiments of the present disclosure, the second turbid air inlet can be specially arranged corresponding to the air inlet side of the second fan 202, or can not be specially arranged. When the second fan 202 is working, the indoor airflow can also flow into the second fan 202 from the gap of the joint of the shell 10. Or, when the air treatment device is integrated in other devices, the air inlet of the other devices can be shared. For example, when integrated in an air conditioner, the first turbid air inlet 103 includes the heat exchange air inlet 601 of the air conditioner.

[0115] Optionally, the air treatment device further comprises a fresh air outlet pipe 702, the fresh air outlet pipe 702 being in communication with the turbid air outlet 105, wherein an inner wall surface of the turbid air outlet 105 is configured with an internal thread, an outer wall surface of the fresh air outlet pipe 702 is configured with an external thread, and the fresh air outlet pipe 702 is threadedly connected with the turbid air outlet 105.

[0116] Optionally, the air treatment device further comprises a fresh air inlet pipe 701, the fresh air inlet pipe 701 is in communication with the fresh air inlet 101, the air treatment device further comprises a connecting pipe, one end of the connecting pipe is threadedly connected with the fresh air outlet pipe 702, and the other end of the connecting pipe is detachably connected with the fresh air inlet 101.

[0117] In the embodiment of the present disclosure, the diameter of the fresh air inlet pipe 701 is greater than the diameter of the fresh air outlet pipe 702, so that the air volume of the fresh air inlet pipe 701 is larger, and therefore, the fresh air inlet pipe 701 is in communication with the fresh air inlet 101 through the connecting pipe, so that the connection stability of the fresh air inlet pipe 701 can be improved, and the fresh air inlet pipe 701 can be prevented from deviating, bending or separating from the fresh air inlet 101 due to the influence of air flow.

[0118] The embodiment of the present disclosure further provides an air conditioner, the air conditioner comprises a shell 60, the shell 60 defines a containing cavity; the air treatment device as described in any one of the above embodiments is located in the containing cavity; and the air conditioner further comprises a heat exchange assembly, the heat exchange assembly comprises a heat exchanger and a heat exchange fan, and the heat exchanger and the heat exchange fan are located in the containing cavity.

[0119] The air conditioner provided by the embodiment of the present disclosure has the beneficial effects of the air treatment device of any one of the above embodiments, and details are not repeated here.

[0120] Optionally, the air treatment device is located below the containing cavity, and the heat exchanger and the heat exchange fan are located above the air treatment device, so that the air conditioner integrates the air treatment device, can perform air conditioning refrigeration and heating, and can also perform fresh air and air purification functions, thereby improving the air outlet diversity and use diversity of the air conditioner.

[0121] Optionally, the shell 60 is further provided with a heat exchange air inlet 601 and a heat exchange air outlet, wherein the shell 60 is provided with air vents corresponding to the fresh air inlet 101, the turbid air outlet 105, the first turbid air inlet 103, the first indoor outlet 102 and the second indoor outlet 104, and at least one of the air vents corresponding to the fresh air inlet 101, the turbid air outlet 105 and the first turbid air inlet 103 is located on the same side wall of the shell 60 as the heat exchange air inlet 601. The air vent corresponding to the second indoor outlet 104 is located on the same side wall of the shell 60 as the heat exchange air outlet.

[0122] Optionally, the air conditioner is a cabinet type air conditioner. It can be understood that the air conditioner can also be other air conditioners.

[0123] The above description and drawings suffice to fully enable one skilled in the art to practice the embodiments of the present disclosure. Other embodiments can include structural and other changes. The embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Portions and features of some embodiments can be included in, or substituted for, portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and can be varied in a variety of ways. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An air treatment device, characterized in that, The air treatment device comprises: a shell defining a first airflow channel having a fresh air inlet, a first indoor outlet and a first turbid air inlet; a first fan located in the first airflow channel, an inlet of the first fan being in communication with the fresh air inlet and / or the first turbid air inlet, and an outlet of the first fan being in communication with the first indoor outlet; a first purification device arranged in the first airflow channel and used for purifying airflow flowing into the fresh air inlet and / or the first turbid air inlet; an anti-backflow plate movably arranged at the fresh air inlet and used for opening or closing the fresh air inlet; an inner purification plate movably arranged at the first turbid air inlet and used for opening or closing the first turbid air inlet; when the anti-backflow plate opens the fresh air inlet and the inner purification plate closes the first turbid air inlet, the first fan drives fresh air flowing into the fresh air inlet to flow through the first airflow channel and then flow out of the first indoor outlet to the indoor; when the anti-backflow plate closes the fresh air inlet and the inner purification plate opens the first turbid air inlet, the first fan drives indoor airflow to flow into the first airflow channel from the first turbid air inlet and then purifies the airflow by the first purification device before the airflow flows out of the first indoor outlet to the indoor.

2. The air treatment device of claim 1, wherein, The anti-backflow plate comprises: a baffle body matched with the fresh air inlet; a rotating shaft passing through the center of the baffle body and arranged at two ends of the baffle body in the radial direction, the rotating shaft being rotationally connected with the shell corresponding to the fresh air inlet; a first motor drivingly connected with the rotating shaft and used for driving the baffle body to rotate around the rotating shaft by driving the rotating shaft, so as to open or close the fresh air inlet; and / or The inner purification plate comprises: a purification plate body matched with the first turbid air inlet; a pivot shaft arranged at two opposite ends of the purification plate body, the pivot shaft being rotationally connected with the shell corresponding to the first turbid air inlet; a second motor drivingly connected with the pivot shaft and used for driving the purification plate body to rotate around the pivot shaft by driving the pivot shaft, so as to open or close the first turbid air inlet.

3. The air treatment device of claim 1, wherein, The shell comprises: an air inlet shell covering the inlet of the first fan, the air inlet shell defining an air inlet space, an outlet of the air inlet space being in communication with the outlet of the first fan, the air inlet shell further being provided with the fresh air inlet and the first turbid air inlet in communication with the air inlet space.

4. The air treatment device according to claim 3, wherein the first purification device is arranged between the air inlet space and the inlet of the first fan; and / or the air inlet shell is detachably connected with the volute of the first fan.

5. The air treatment device of claim 1, wherein, The shell further comprises: a first air outlet shell having one end in communication with the outlet of the first fan and the other end provided with the first indoor outlet; wherein the first air outlet shell is arranged above the first fan and is bent.

6. The air treatment device according to claim 1, wherein the shell further defines a second airflow channel having a second turbid air inlet and a turbid air outlet, the turbid air outlet being in communication with the outdoor, and the air treatment device further comprises: a second fan located in the accommodating cavity, the second fan being arranged between the second turbid air inlet and the turbid air outlet; a second purification device arranged in the second airflow channel and used for purifying airflow flowing into the second turbid air inlet, the second fan being capable of driving indoor airflow to flow into the second airflow channel from the second turbid air inlet and then purify the airflow by the second purification device before the airflow flows out of the turbid air outlet.

7. The air treatment device according to claim 6, wherein The first fan and the second fan are arranged side by side in a horizontal direction, and the air inlet direction of the first fan is opposite to the air inlet direction of the second fan. And / or, Further comprising: The fan motor is connected with the first fan and the second fan, and is used for driving the first fan and the second fan to rotate.

8. The air treatment device of claim 7, wherein, When the first fan and the second fan are connected with the fan motor, the shell further comprises: The partition plate is configured with a motor cavity, the fan motor is located in the motor cavity, and the motor shafts at the opposite ends of the fan motor respectively extend out of the opposite sides of the partition plate; The first cover plate is covered on one side of the partition plate and encloses the first fan cavity with one end of the partition plate, the impeller of the first fan is located in the first fan cavity and is drivingly connected with one motor shaft of the fan motor; The second cover plate is covered on the other side of the partition plate and encloses the second fan cavity with the other end of the partition plate, the impeller of the second fan is located in the second fan cavity and is drivingly connected with the other motor shaft of the fan motor.

9. The air treatment device according to any one of claims 1 to 8, wherein: The fresh air inlet, the first turbid gas inlet and the first indoor outlet are located on the same side wall of the shell in the same direction; and / or, the fresh air inlet is located above the first turbid gas inlet, and the first indoor outlet is located above the fresh air inlet.

10. An air conditioner characterized by comprising: Comprise: The shell defines a containing cavity; The air treatment device according to any one of claims 1 to 9 is located in the containing cavity; The heat exchanger and the heat exchange fan are located in the containing cavity.

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